Description

ATTACHMENT APPARATUS FOR RAG OF VACCUM CLEANER AND MNUFACTURING METHOD THEREOF

Technical Field

[1] This document relates to an attachment apparatus for a rag of a cleaner and a manufacturing method thereof. Background Art

[2] A cleaner is an apparatus for reducing human labor by performing cleaning by means of machinery. A various kind of cleaners such as a vacuum cleaner using absorption force, a water cleaner simultaneously sucking in water and air by spraying water, as well as a recent steam cleaner removing a foreign substance of a bottom surface by spraying steam, etc. have been appeared.

[3] And, a rag is attached to the steam cleaner to remove the foreign substance of the bottom surface. In order to attach such a rag, a separate lever is provided to fix both ends of the rag, or a velcro is used to fix the rag. Disclosure of Invention Technical Problem

[4] However, in the case of fixing the rag by means of the separate lever as described above, since a user must use the cleaner while individually inserting or changing the rag by hand, it has a disadvantage that work is troublesome. Also, in the case of fixing the rag by means of the velcro, since the cleaner is used only in the state where the velcro is attached to a support plate, it has a problem that the velcro is separated from the support plate. Technical Solution

[5] The embodiment has been proposed in order to solve the problems. It is an object of the embodiment to provide an attachment apparatus for a rag of a cleaner capable of preventing an attachment portion for attaching the rag from being easily separated.

[6] It is another object of the embodiment to provide a manufacturing method of an attachment apparatus for a rag of a cleaner wherein an attachment portion is fixed by means of insert injection molding.

[7] In order to accomplish the above objects, the attachment apparatus for the rag of the cleaner according to one aspect comprises: an attachment portion to which the rag is attached; a support member supporting the attachment portion; and a cover member covering a portion of the attachment portion.

[8] The attachment apparatus for the rag of the cleaner according to another aspect comprises: an attachment portion to which the rag is attached; and a position fixing

device fixing the position of the attachment portion, wherein the attachment portion and the position fixing device are integrally formed by means of insert injection.

[9] The manufacturing method of the attachment apparatus for the rag of the cleaner according to another aspect comprises the steps of: attaching an attachment portion to a support member; inserting the support member to which the attachment portion is attached into the inside of a mold to fix it; injecting molded resin into the inside of the mold so that the resin is filled around the support member; and solidifying the resin filled in the inside of the mold in the injecting step to form a cover member.

[10] The manufacturing method of the attachment apparatus for the rag of the cleaner according to another aspect comprises the steps of: fixing the position of an attachment portion to a support member; and injection molding a cover member covering the support member and the attachment portion.

Advantageous Effects

[11] With the proposed embodiment, since the attachment apparatus is formed by means of the insert injection of the attachment portion, it is prevented that the attachment portion is separated from the attachment apparatus due to a high temperature. [12] That is, since the edge of the attachment portion is completely inserted into the inside of the attachment apparatus by means of the insert injection to form one body, the separation of the attachment portion is not generated. [13] Also, since it is not required to comprise a separate engagement means for fixing the attachment portion to the attachment apparatus, manufacturing cost is reduced, and working efficiency is improved. [14] In addition, since the attachment portion is attached to an accurate position of the support member by means of a guide mean guiding the coupling of the attachment portion and the support member, the attachment is firm, as well as working efficiency is improved.

Brief Description of the Drawings [15] FIG. 1 is a perspective view of a steam and vacuum clearer adopting an attachment apparatus for a rag according to the embodiment. [16] FIG. 2 is a perspective view of an appearance of a nozzle according to the embodiment. [17] FIG. 3 is a partially cut-away perspective view of the nozzle according to the embodiment.

[18] FIG. 4 is an exploded perspective view of the nozzle.

[19] FIG. 5 is a side cross-sectional view of the nozzle.

[20] FIG. 6 is a front cross-sectional view of the nozzle.

[21] FIG. 7 is a perspective view of a lower surface of the nozzle.

[22] FIG. 8 is an exploded perspective view of the nozzle.

[23] FIG. 9 is an exploded perspective view of a rag plate according to the embodiment.

[24] FIG. 10 is a perspective view of an attachment apparatus according to the embodiment.

[25] FIG. 11 is an exploded perspective view of the attachment apparatus.

[26] FIG. 12 is a cross-sectional view of the attachment apparatus.

[27] FIG. 13 is a block diagram showing a schematic process of a preferred embodiment of a manufacturing method of the attachment apparatus.

[28] FIG. 14 is a state diagram showing a fabricating process of the attachment apparatus. Mode for the Invention

[29] Hereinafter, the embodiment will be described in detail with reference to accompanying drawings.

[30] In Figure 1, a perspective view of a steam and vacuum cleaner adopting an attachment apparatus for a rag according to the embodiment is shown.

[31] In the embodiment, a canister type of a cleaner is described by way of example.

However, it is noted that the idea of the embodiment is not limited to the kind of a cleaner, and can be also applied to any cleaning apparatus comprising the attachment apparatus for the rag.

[32] Referring to Figure 1, a cleaner according to the embodiment is constituted by a body 50 having a plurality of components built therein, an extension pipe 60 constituted to be able to adjust length, a connection hose 70 connected to the extension pipe to guide air and foreign substance, and a nozzle 100 guiding the air and the foreign substance while moving in a state close to a bottom surface, etc.

[33] More specifically, the nozzle 100 and the body 50 is spaced, and the extension pipe

60 and the connection hose 70, etc. are provided between such a nozzle 100 and the body 50 to guide the flow of the air and the foreign substance. That is, one end of the extension pipe 60 is connected to the nozzle 100, and the body 50 is connected to the one end of the connection hose 70.

[34] The other end of the extension pipe 60 is provided with a handle 80. The front surface of the handle 80 is formed with a control panel 82.

[35] Therefore, a user manipulates the control panel 82 in a state grasping the handle 80 with one hand to be able to control the operation of the cleaner, the strength and weakness of the cleaner or on/off of a steam generating device 120 described below.

[36] The inside of the body 50 is installed with a plurality of components such as a motor assembly (not shown) generating suction force by rotating by means of power supplied from the outside and a dust collecting unit 52 in which the foreign substance

in the air is filtered and piled up, etc.

[37] Therefore, when the power is applied from the outside so that the suction force is generated, the air and the foreign substance of the outside are sucked through the nozzle 100, and are inflowed via the extension pipe 60 and the connection hose 70, ect. to the body 50. The foreign substance inflowed into the body 50 is filtered by means of a filter (not shown) provided inside of the dust collecting unit 52 to be piled up inside the dust collecting unit 52.

[38] In Figures 2 to 8, a configuration of the nozzle 100 is shown in detail.

[39] In Figures 2 and 3, a perspective view of an appearance and a partially cut-away perspective view of the nozzle according to the embodiment are shown, respectively, and in Figure 4, an exploded perspective view of the nozzle is shown.

[40] And, in Figures 5 and 6, a side cross-sectional view and a front cross-sectional view of the nozzle are shown, respectively, and in Figures 7 and 8, a perspective view of a lower surface and an exploded perspective view of the nozzle are shown, respectively.

[41] Referring to Figures 2 to 8, the nozzle 100 guides the foreign substance on the bottom surface so that it is sucked into the inside of the body 50 together with the air. And, the overall appearance of the nozzle 100 is formed by means of a base pan 110 and an external case 200 coupled to the upper side of the base pan 110.

[42] The base pan 110 has a rectangular shape, and is formed with a suction port 112 in which an external air and foreign substance are inflowed. Therefore, the air and the foreign substance below the base pan 110 is suck into the inside of the base pan 100 through the suction port 112.

[43] The rear side of the base pan 110 is installed with a pair of moving wheels 114.

And, the right and left of the front end of the base pan 110 are installed with a pair of auxiliary wheels 115.

[44] The central portion of the rear end of the base pan 110 is installed with a connection pipe 116. The extension pipe 60 is coupled to the connection pipe 116. And, the connection pipe 116 is formed in a cylindrical shape to guide the air and the foreign substance inflowed into the inside of the nozzle 100 to the extension pipe 60.

[45] And, the edge of the base pan 110 is attached and installed with a damping member

118. More specifically, the damping member 118 is made of an elastic material such as a rubber, and is installed on the front surface and the right and left side of the base pan 110. In the case where the nozzle 100 collides with an external object such as the surface of a wall, etc., the damping member 118 performs operation preventing the breakage of the nozzle 100 and mitigating impact.

[46] The inside of the nozzle 100 is provided with a steam generating device 120 heating water to supply steam.

[47] A schematic appearance of the steam generating device 120 is formed by a steam

case 130. The steam case 130 is constituted by a steam base 132 made of a flat panel, and a steam cover 134 coupled to the upper side of the steam base 132. Therefore, a predetermined space is formed between the steam base 132 and the steam cover 134.

[48] That is, the space between the steam base 132 and the steam cover 134 is formed with a steam generating portion 136 heating water to form steam and a water storing portion 138 supplying the water to the steam generating portion 136.

[49] That is, the space between the steam base 132 and the steam cover 134 is partitioned into the right and the left wherein the left is formed with the steam generating portion 136 and the right is formed with the water storing portion 138.

[50] More specifically, the steam generating portion 136 is formed to be lengthened before and behind in the vicinity of the left end of the nozzle 100, and the water storing portion 138 is formed to be lengthened right and left. The steam generating portion 136 and the water storing portion 138 are in communication with each other.

[51] And, the height of the steam generating portion 136 is formed to be higher than that of the water storing portion 138. This is because the steam generating portion 136 must be provided with a sufficient space for forming the steam, and also accommodate a heater 140 described below.

[52] The steam generating portion 136 is installed with the heater 140. The heater 140 generates heat by means of power applied from the outside, thereby converting water in the steam generating portion 136 into steam. The heater 140 is preferably formed in character U shape (when being viewed from top).

[53] The rear end of the steam generating portion 136 is formed with a heater support

142. The heater support 142 is formed to be protruded upward from the steam base 132, to fix and support both ends of the heater 140.

[54] The vicinity of the center of the steam generating portion 136 is formed with a steam guide 144. The steam guide 144 is formed to be protruded upward at a certain height from the steam base 132, and is made of a hollow axis having a channel formed therein.

[55] Therefore, the steam is moved through the steam guide 144. That is, the steam formed from the steam generating portion 136 is moved to the lower side of the steam base 132 through the steam guide 144.

[56] Meanwhile, the bottom of the steam generating portion 136 is provided with an absorption filter 146. The absorption filter 146 is preferably formed in a rectangular shape corresponding to the size of the bottom of the steam generating portion 136 and is positioned on the lower side of the heater 140.

[57] More specifically, the lower surface of the absorption filter 146 abuts on the steam base 132, and the upper surface thereof abuts on the heater 140. And, it is preferable that the absorption filter 146 easily absorbs the water and is made of material having a

strong heat-resisting property. That is, the absorption filter 146 is made of material maintaining moisture such as a sponge and is formed of material having a strong heat- resisting property, which is not burned even in a state abutting on the heater 140. For example, the absorption filter is made of material such as asbestos.

[58] And, the moisture absorbed into the absorption filter 146 is heated and evaporated by means of the heater 140 to be converted into the steam.

[59] The steam cover 134 is formed to have a step. That is, as shown in Figure 4, the steam cover 134 comprises a steam portion cover 134a covering the upper side of the steam generating portion 136 and a storing portion cover 134b covering the upper side of the water storing portion 138. And, the height of the steam portion cover 134a is relatively higher than that of the storing portion cover 134b.

[60] The steam cover 134 is formed with a water inlet 150. And a portion of the water inlet 150 is protruded upward. And, the inside of the water inlet 150 is formed with a screw surface.

[61] And, the water inlet 150 is selectively closed by means of an inlet valve 152. And, the outer circumferential surface of the inlet vale 152 is formed with a screw surface. Therefore, the inlet valve 152 is screw-coupled to the water inlet 150.

[62] A suction channel pipe 160 is positioned on the upper side of the steam generating device 120. The suction channel pipe 160 guides air and foreign substance inflowed from the outside to the rear of the nozzle 100.

[63] The suction channel pipe 160 is installed to traverse the central portion of the nozzle 100 before and behind and the front end thereof is coupled to the suction port 112.

[64] The lower of the base pan 110 is formed with a plate accommodating portion 170 having a rectangular shape to be depressed upward. A rag plate 180 described below is accommodated in the plate accommodating portion 170. The plate accommodating portion 170 is preferably made of metal material so that the rag plate 180 described below can be attached by means of magnetic force.

[65] Of course, the whole of the plate accommodating portion 170 need not be made of the metal material, and only a portion of the plate accommodating portion can be made of the metal material. Also, the plate accommodating portion 170 is not made of the metal material, but a separate metal material can be built in the upper side of the plate accommodating portion 170 or be provided on the lower surface of the plate accommodating portion 170.

[66] The central portion of the plate accommodating portion 170 is formed with a steam guide member 172 to be lengthened right and left. The inside of the steam guide member 172 is formed with a channel to guide the steam moved to the lower side of the base pan 110 through the steam guide 144 to be dispersed and spread right and left.

[67] The lower surface of the steam guide member 172 is formed with a plurality of steam spouting holes 174 to be penetrated upward and downward. Therefore, the steam guided by means of the steam guide member 172 is discharged to the lower side through the steam spouting holes 174.

[68] The rag plate 180 having the rectangular shape is selectively mounted on the plate accommodating portion 170. A rag 190 is detachably attached to the rag plate 180. And, the lower surface of the rag plate 180 is formed with a plurality of apertures 182. That is, as shown in Figure 7, each of the front portion and the rear portion of the lower surface of the rag plate 180 is formed with three apertures, respectively, i.e. a total of six apertures 182. And, an attachment portion 242 of an attachment apparatus 240 described below is exposed downward through the apertures 182.

[69] The rag plate 180 is attached and fixed to the lower surface of the nozzle 100 by means of the magnetic force. Therefore, although not shown, the inside of the rag plate 180 is installed with a permanent magnet to be lengthened right and left.

[70] Such a permanent magnet is to allow the rag plate 180 to be easily attached to the plate accommodating portion 170. That is, since the plate accommodating portion 170 is formed of the metal material and the permanent magnet is built in the rag plate 180, when bringing the rag plate 180 to the vicinity of the plate accommodating portion 170, the rag plate 180 is attached to the plate accommodating portion 170 by means of the magnetic force.

[71] The central portion of the rag plate 180 is formed with a member penetration hole

184 to be penetrated upward and downward, wherein the steam guide member 172 penetrates through the member penetration hole 184. And, the member penetration hole 184 is formed at a certain size corresponding to the length of the right and left of the steam guide member 172. Therefore, the lower surface of the steam guide member 172 is exposed to the lower of the rag plate 180 through the member penetration hole 184.

[72] The rear end of the rag plate 180 is formed with a detaching lever 186 to be protruded at a certain size rearward.

[73] The detaching lever 186 allows the rag plate 180 to be easily separated from the lower surface of the nozzle 100. And, the detaching lever 186 is vertically bent upward from the rear end of the rag plate 180 and then, is again vertically bent rearward so that it is formed in a character ' I ' shape on the whole (when being viewed from the right side).

[74] The right side of the external case 200 is formed with a valve safety mounting portion 202 to be depressed downward, wherein the inlet valve 152 is safely mounted on the valve safety mounting portion 202. And, the central portion of the valve safety mounting portion 202 is formed with a valve penetration hole 204 to be penetrated

upward and downward, wherein the lower end of the inlet valve 152 penetrates through the valve penetration hole 204.

[75] The central portion of the external case 200 is formed with a central cover 210 to traverse before and behind. The central cover 210 is formed with a display portion 212. The display portion 212, which performs a role displaying the operating state of the steam generating device 120 to the outside, mainly displays whether or not power is supplied and whether or not water is lacking (replenished).

[76] In Figure 9, an exploded perspective view of a configuration of a rag plate is shown.

[77] Referring to Figure 9, the rag plate 180 comprises a lower cover 220 forming a lower appearance, a upper cover 230 forming an upper appearance, and an attachment apparatus 240 attaching and fixing the rag 190.

[78] More specifically, the lower cover 220 and the upper cover 230 have rectangular shapes and are coupled to each other by means of a plurality of screws. And, the attachment apparatus 240 is installed between the lower cover 220 and the upper cover 230.

[79] A plurality of attachment apparatus 240 is provided in the rag plate 180, and a portion of the attachment apparatus is exposed to the lower side of the lower cover 220. That is, a portion of an attachment apparatus 242 described below is exposed to the lower side of the lower cover 220 through the aperture 182.

[80] The upper surface of the lower cover 220 is formed with a plurality of safety mounting portion 222 on which the attachment apparatus is safely mount. Therefore, the safety mounting portion 222 is composed of a total of six to correspond to the number of the attachment apparatus 240.

[81] The edge of the safety mounting portion 222 is partially protruded upward from the lower cover 220 to prevent the attachment apparatus 240 from being moved right and left and before and behind. The inner circumferential surface of the safety mounting portion 222 is formed to have a step, thereby supporting the attachment apparatus 240.

[82] More specifically, the safety mounting portion 222 is formed with the aperture 182 to be penetrated upward and downward. And, the safety mounting portion 222 is formed with a safety mounting surface 224 having a predetermined width along the inner circumferential surface of the safety mounting portion 222. The edge of a support portion 244a of the attachment apparatus 240 described below is safely mounted on the safety mounting surface 224.

[83] In Figure 10, a perspective view of an overall appearance of the attachment apparatus is shown, and in Figure 11, an exploded perspective view of the attachment apparatus is shown. And, in Figure 12, the cross section of the attachment apparatus is shown.

[84] Referring to Figures 10 to 12, the attachment apparatus 240 comprises an

attachment portion 242 to which the rag 190 is closely adhered and attached, and a position fixing device fixing device fixing the position of the attachment portion 242. And, the position fixing device comprises a cover member 244 covering a portion of the attachment portion 242 and a support member 246 supporting the attachment portion 242.

[85] More specifically, a velcro member can be used as the attachment portion 242. The velcro member is made of magic tape referred to as velcro or 'sticking velcro'. Therefore, while not shown, the upper surface of the rag 190 is formed with a velcro corresponding to the velcro member. Accordingly, the rag 190 can be attached to the velcro member.

[86] And, the velcro member having a polygonal shape is supported while being attahced to the lower surface of the support member 246, and the outside of the velcro member is provided with the cover member 244 to cover the edge of the velcro member.

[87] The edge of the attachment portion 242 has a polygonal shape, and the central portion thereof is formed with a guide hole 252 to be penetrated. Together with a guide protrusion 254 described below, the guide hole 252 forms a guide means 250. That is, the guide hole 252 guide the attachment portion 242 to be attached to an accurate position on the lower surface of the support member 246.

[88] The cover member 244 comprises a rectangular flat panel support portion 244a having the size and shape corresponding to the size of the upper end of the aperture 182 and a fixing portion 244b having the size corresponding to the size of the lower end of the aperture 182. The edge of the support portion 244a is safely mounted on the safety mounting surface 224.

[89] The fixing portion 244b is a portion supporting and fixing the edge portion of the attachment portion 242, and the central portion thereof is formed with an exposing portion 244c to be penetrated upward and downward, wherein the exposing portion exposes a portion of the attachment portion 242. And, the cover member 244 is injection molded.

[90] The support member 246 has an appearance of a rectangular shape and is accommodated in the inside of the cover member 244. The right and left of the inside of the support member 246 is formed with a pair of depressed grooves 248 depressed downward, and the edge of the support member 246 is formed with a plurality of injection guides 246a to be protruded outside, wherein the injection guide allows the cover member 244 to be more easily insert injected.

[91] The lower surface of the support member 246 is formed with the guide protrusion

254 to be protruded downward. The guide protrusion 254 is formed in a rectangular shape corresponding to the guide groove 252 and is inserted into the guide groove 252

to guide the coupling position of the attachment portion 242 and the support member 246.

[92] And, the central portion of the guide protrusion 254 is formed with an inlet hole

246b to be penetrated upward and downward. The inlet hole 246b allows a central fixing portion 244d to be formed on the lower surface of the attachment apparatus 240 by allowing the resin of the upper side to be inflowed to the lower side through the inlet hole 246b, in the case where the cover member 244 is molded by means of injection molding.

[93] The central fixing portion 244d, which is integrally formed with the cover member

244, is formed at the central portion of the inside of the cover member 244 to perform a role fixing the central portion of the attachment portion 242. That is, the central fixing portion 244d is formed to cover the vicinity of the guide protrusion 254, thereby allowing the central portion of the attachment portion 242 to be firmly fixed to the central portion of the support member 246.

[94] Hereinafter, the operations of the rag plate having the construction as described above and a vacuum cleaner to which such a rag plate is applied will be described.

[95] First, a user rotates the inlet valve 152 to open the water inlet 150 and then, supplies water from the outside through the water inlet 150. And, when an appropriate amount of water is accommodated in the water storing portion 138, the user closes the water inlet 150 using the inlet valve 152.

[96] Next, when power is applied from the outside, this power is supplied to the body 50 and the nozzle 100. Therefore, the motor assembly (not shown) provided inside the body 50 is rotated to generate suction force.

[97] In this case, as shown in Figure 5, an external foreign substance is sucked through the suction port 112 of the nozzle 100, together with air to be penetrated through the suction channel pipe 160 and inflowed into the inside of the body 50 via the extension pipe 60 and the connection hose 70. The foreign substance in the air inflowed into the inside of the body 50 is filtered and collected by means of a filter assembly (not shown) provided inside the dust collecting unit 52, and the air in which the foreign substance is filtered is discharged outside via the motor assembly (not shown).

[98] Meanwhile, the steam generating device 120 operates by means of the power applied from the outside. That is, the power of the outside is supplied to the heater 140 so that the heater 140 generates heat. Of course, this state is a state that the water is supplied from the outside to the water storing portion 138 through the water inlet 150 and this water is sufficiently absorbed in the absorption filter 146.

[99] Therefore, when the heater 140 is heated, the water absorbed in the absorption filter

146 abutting on the heater 140 is heated so that steam is formed. At this time, the water instantly heated by means of the heater 140 is the water positioned around the heater

140 and absorbed in the absorption filter 146, rather than the overall water stored in the inside of the steam case 130.

[100] More specifically, since the lower surface of the heater 140 is installed in the state where it is put on the upper surface of the absorption filter 146, when the heater is heated, the water positioned around the heater 140, that is, the water absorbed in the absorption filter 146 is firstly heated to be converted into the steam. Therefore, the water is evaporated at a high speed (according to an experiment, within approximately ten twenty second).

[101] The steam generated by means of the heater 140 is moved to the lower side through the steam guide 144 to be inflowed into the steam guide member 172, as shown in Figure 6. At this time, since the steam guide member 172 is formed to be lengthened right and left, the steam inside the steam guide member 172 is dispersed right and left to be discharged to the lower side through a plurality of steam spouting holes 174.

[102] The steam discharged to the outside through the steam spouting holes 74 is inflowed into the inside of the rag 190. Therefore, the rag 190 becomes a wet rag containing a high-temperature steam. In this state, when scrubbing a floor, the foreign substance attached to the floor is easily removed by means of the rag 190.

[103] And, whether or not the steam is formed is displayed through the display portion

212. That is, when the water is heated by the heater 140 so that the steam is formed, this state is displayed on the display portion 212. Also, whether or not the water is lacking is displayed on the display portion 212. That is, when water lack is sensed by measuring a water lever sensor (not shown) installed inside the water storing portion 138, this state is displayed to the outside through the display portion 212. Therefore, the user can take an appropriate action according to various information displayed on the display portion 212.

[104] On the other hand, the user can selectively mount and use the rag plate 180 according to the state of the floor intended to clean.

[105] For example, as described above, in the case intended to clean the floor covered with floor paper such as apartment, etc., the user firstly attaches the rag 190 to the rag plate 180 and then, mounts the rag plate 180 on the plate accommodating portion 170 formed on the lower surface of the nozzle 100.

[106] At this time, since the permanent magnet is built in the rag plate 180 and the metal material is provided in the plate accommodating portion 170, when the user brings the rag plate 180 to the vicinity of the lower surface of the nozzle 100, the rag plate 180 is drawn to the plate accommodating portion 170 and mounted thereon by means of the magnetic force.

[107] Next, in the case intended to clean the floor covered with a carpet, the user perform a cleaning work in the state that the rag plate 180 is detached. The user pushes the

detaching lever 186 of the rag plate 180 to the lower side using toes or hands, etc in the state that the rag plate 180 is mounted on the lower surface of the nozzle 100. In this case, the rag plate 180 is separated and detached from the plate accommodating portion 170. That is, since the rag plate 180 is mounted on the lower surface of the nozzle 100 by means of the magnetic force, when applying force larger than this magnetic force, the rag plate 180 is spontaneously separated from the nozzle 100.

[108] Next, a manufacturing method of the attachment apparatus 240 will be described in detail with reference to FIGS. 13 and 14.

[109] Figure 13 shows a block diagram showing a schematic process of a preferred embodiment of a manufacturing method of the attachment apparatus, and Figure 14 shows a state diagram showing a fabricating process of the attachment apparatus.

[110] Referring to Figures 13 and 14, the manufacturing method of the attachment apparatus 240 comprises the steps of: attaching S300 the attachment portion 242 to the support member 246; inserting S310 the attachment portion 242 and the support member 246 fixed to each other by means of the attaching step S300 into the inside of a mold to fix them; injecting S320 molded resin into the inside of the mold so that the resin is filled around the attachment portion 242; and solidifying S330 the resin filled in the inside of the mold in the injecting step S320 to form a cover member 244.

[I l l] More specifically, the attaching step S300 is a process attaching the back surface of the attachment portion 242 to the upper surface of the support member 246 (the lower surface in Figure 11) using adhesive as in Figure 14(a). At this time, the guide means 250 guides the attachment portion of the attachment portion 242. That is, if the guide protrusion 254 of the support member 246 is assembled to be inserted into the guide groove 252 of the velcro member 242, the attachment portion 242 is put at an accurate position.

[112] The inserting step S310 is constituted by a process S312 inserting the attachment portion 242 and the support member 246 into the inside of the mold and a process S314 fixing the edge of the attachment portion 242 by pressing it to be bent downward, etc.

[113] More specifically, the inserting process S312 is a process inserting the support member 246 and the velcro member 242 to the inside of the mold in the state where the attachment portion 242 is attached to the upper surface of the support member 246 as in Figure 14(a).

[114] At this time, since the attachment portion 242 is horizontally spread, the edge of the attachment portion 242 must be pressed downward in order to facilitate insert injection. That is, as in Figure 14(b), the mold (not shown) presses the front and rear and the right and left of the edge of the attachment portion 242 downward (refer to arrow ¹ J,') so that the edge of the attachment portion 242 is bent downward. This

process is the fixing process S314.

[115] The injecting step S320 is a process forming the cover member 244. At this time, the molded resin covers the vicinity of the support member 246 in the state where the velcro member 242 is attached to the support member 246. At this time, the resin of the lower side (in Figure 14) is also transferred to the upper side through the inlet hole 246b to form the central fixing portion 244d. That is, the resin transferred to the upper side of the support member 246 through the inlet hole 246b covers the outside of the guide protrusion 254 to form the central fixing portion 244d. At this time, the attachment portion 242 around the guide protrusion 254 is naturally molded together with the resin to be firmly fixed to the support member 246.

[116] After throwing the molten resin into the inside of the mold by means of the injecting step S320 as described above, a predetermined time is allowed to be passed, to solidify the molten resin. In this case, the cover member 244 having a shape corresponding to the inside of the mold frame, and such a cover member 244 is integrally formed with the support member 246 and the attachment portion 242.

[117] As such, the attachment apparatus 240 is molded by means of the injection molding.

That is, when forming the cover member 244 by means of the injection molding, the cover member 244, the attachment portion 242, and the support member 246 are integrally formed by means of a method inserting the attaching portion 242 and the support member 246 into the inside of the mold.

[118] The scope the present invention is not limited to the above exemplary embodiments, but a variety of modifications can be made by those skilled in the art on the basis of the present invention. Industrial Applicability

[119] With the attachment apparatus for the rag of the cleaner and the manufacturing method according to the embodiment, since the attachment portion of the attachment apparatus is formed by means of the insert injection, it is prevented that the attachment portion is separated from the attachment apparatus due to a high temperature.