Description METHOD AND SYSTEM FOR HOLDING YOKE ON SUPPORT

Technical Field

[1] The present invention relates, in general, to a method and system for holding a yoke on a support, in which, when the yoke is placed on a head, which is connected to a vertical member, a fixing member is fitted into a connecting hole of the head via a pin hole of the yoke with the center of the yoke in a thickness direction aligned with the center of the head, so as to securely support the yoke without rolling, thereby facilitating connecting a table form on the yoke. Background Art

[2] As is generally known in the art, to install a slab of a building, a table form supported by a plurality of supports is first mounted, iron bar for a slab is assembled onto the upper portion of the table form, and concrete is poured in the upper portion of the table form, thereby forming the slab.

[3] In order to form the slab, the table form and the plurality of supports for withstanding the load of concrete poured in the upper portion of the table form are installed. The support has a support face is height-adjustable and both ends of it are enlarged so as not to slip on the ground nor on the table form. A separate socket is further provided so as to connect supports with each other or connect a connector to the support.

[4] Further, on such a support, there is a supporting section on which a yoke is supported so that a worker can step up and work and which is integrally connected to an upper end of a distance-regulating unit connected to the support.

[5] In such a conventional system support, as illustrated in FIG. 1, a plurality of vertical members 10, each having connecting sections 11 on both longitudinal sides, are vertically connected to each other in multiple stages using a connecting pin (not shown), and the distance-regulating units 50 supported on upper and lower slabs are connected to the highest- or lowest-positioned vertical member.

[6] Herein, two yokes 57 are received in a supporting bracket 55, which is connected to an upper portion of the distance-regulating unit 50, with ends thereof overlapping with each other.

[7] The supporting bracket 55 thus has an enlarged area in a width direction on which the ends of the yokes 57 are placed while overlapping with each other. The yokes 57 then support joists of a table form.

[8] However, since the magnitude of the enlarged area of the supporting bracket 55 corresponds to that of the width of two yokes 57, if only a single yoke is placed on the supporting bracket, the yoke moves in a width direction, so that there is the possibility

of the generation of vibration and of the occurrence of a safety accident upon working on the table form, which makes it difficult to securely support the yoke.

[9] Further, the movement of the yoke, which supports a molding box, induces an eccentric load to the molding box so as to deform the vertical member or the like, making it difficult to homogeneously distribute a load.

[10] Further, the overlapping of the yokes 57 on the supporting bracket 55 induces a difference H between centerlines of the yoke 57 and the distance -regulating unit 50, so that, when the yoke is supported by the supporting bracket 55, a load of the yoke transferred to the unit is deflected, causing the occurrence of a safety accident and turning over of the support. Disclosure of Invention Technical Problem

[11] Accordingly, the present invention has been made in an effort to solve the problems occurring in the related art, and an object of the present invention is to provide a method and system for holding a yoke on a support which can prevent the movement of the yoke so as to facilitate installing a table form to be placed on the yoke, prevent the disconnection of a fixing member so as to securely support the yoke, securely support the yoke on a supporting bracket so as to prevent a safety accident such as e.g. the falling of a worker, prevent the movement of the respective yoke in width and length directions so as to facilitate fixating the yokes, and easily connect the supporting bracket and the yoke together without the need for separate connecting work.

Technical Solution

[12] In order to achieve the above object, according to one aspect of the present invention, there is provided a method of holding a yoke on a support, including the steps of connecting a height-adjustable head to an upper end of a vertical member, placing at least one yoke on the head such that the center of the yoke in a width direction is aligned with that of the head, and inserting, from the upper portion of the yoke, a fixing member into a connecting hole of the head via a pin hole of the yoke.

[13] In accordance with another aspect of the present invention, there is provided a system for holding a yoke on a support, including at least one yoke linearly extending in a length direction and having a plurality of pin holes, a height-adjustable head engaged with an upper end of a vertical member and on which a supporting bracket is connected, the supporting bracket being provided so as to prevent turning over the yoke when it is being placed on the supporting bracket, and having a plurality of connecting holes, and a fixing member vertically inserted from an upper side of the yoke into the pin hole and the connecting hole, wherein the yoke is installed on the supporting bracket such that the center of the yoke in a width direction is aligned with

that of the vertical member so that the fixing member is prevented from being disconnected from the inserted position by its weight.

Advantageous Effects

[14] According to the present invention, the yoke holding method and system provide the effects that the movement of the yoke is prevented so as to facilitate installing a table form to be placed on the yoke, the disconnection of the fixing member is prevented so as to securely support the yoke, the yoke is securely supported on the supporting bracket so as to prevent a safety accident such as e.g. the falling of a worker, the fixing of the yoke is implemented by only placing the yoke on the supporting bracket, thereby facilitating fixing the yokes, the supporting bracket and the yoke are easily connected together without the need for separate connecting work, and the fixing member is securely supported in the yoke and the supporting bracket by its own weight without separate connecting work being required. Brief Description of the Drawings

[15] FIG. 1 is a perspective view illustrating the installing state of a conventional support;

[16] FIG. 2 is a perspective view illustrating the installing state of a support according to the present invention;

[17] FIGS. 3 and 4 are a perspective view and a cross-sectional view illustrating the connecting states of major parts of the support according to the present invention; and

[18] FIGS. 5 to 8 are views illustrating the connecting states of major parts of the support according to the present invention. Best Mode for Carrying Out the Invention

[19] Reference will now be made in greater detail to a preferred embodiment of the invention, an example of which is illustrated in the accompanying drawings.

[20] FIG. 2 is a perspective view illustrating the installing of a support according to the present invention, FIGS. 3 and 4 are a perspective view and a cross-sectional view illustrating the connected states of major parts of the support according to the present invention, and FIGS. 5 to 8 are views illustrating the connected states of major parts of the support according to the present invention.

[21] The support according to the present invention includes a plurality of yokes 100 each having a plurality of vertical through-holes 110 with a span.

[22] The yokes 100 are linearly connected in such a manner that opposite ends of the adjacent yokes are placed on a supporting bracket 310, which is integrally connected to an upper end of a head 300, while facing each other, or otherwise the portion of one yoke is placed on the supporting bracket 310.

[23] Here, the head 300 is screw-engaged with an upper portion of a vertical member in such a manner as to be height-adjustable upon rotation.

[24] Further, the supporting bracket 310 has a support base and support walls 311 on opposite ends of the support base. The center of the support base is aligned with the center C-I of the head 300 and the center C of the yoke 100 in a thickness direction, so that opposite faces of the yoke 100 are respectively brought into contact with inner faces of the opposite support walls, so as to prevent the turnover of the yoke 100. [25] The supporting bracket 310 has a plurality of connecting holes 313 in its bottom which is connected to the upper end of the head 300. [26] Here, the supporting bracket 310 and the yoke 100 placed thereon are fixed by inserting a fixing member 150 from the upper portion of the yoke into the connecting hole 313 via the pin hole 110. [27] The fixing member 150 is further provided with a slot 155 for inserting a fixing pin

157. [28] Meanwhile, the fixing member 150 may be of an inverted U shape so as to be inserted into plural pin holes 110 and connecting holes 313 at the same time. [29] The yoke 100 is provided thereon with a positioning recess 140 for preventing the fixing member, which is inserted into the yoke, from being disconnected upward from the yoke. [30] Further, the supporting bracket 310 may be further provided in the support walls with fitting slots 315, and a covering plate 170, which is correspondingly fitted into the fitting slots at opposite side ends thereof while covering the upper portion of the yoke

100. [31] Here, the opposite side ends of the covering plate 170 are formed with elastic hooks

175 which are fitted into the fitting slots 315. [32] The covering plate 170 has a pin-insertion hole 173 through which the fixing member is inserted from the upper portion of the covering plate.

[33] Further, the pin-insertion hole 173 of the covering plate 170 may be formed in a positioning recess which corresponds to the positioning recess 140. [34] Alternatively, the covering plate 170 may be integrally provided, on its upper surface, with a fixing protrusion 177, which is cut and bent to extend downwards so as to be inserted into the pin hole 110 of the yoke 100. [35] On the other hand, a yoke 100 may be provided which is of a rod bar or an angled bar which is symmetric in a height direction and a width direction from the center of the supporting bracket.

[36] Here, the yoke 100 is provided with a plurality of pin holes 110.

[37] A head 300 is provided on which a U-shaped supporting bracket 310 is connected so as to support opposite side faces and the bottom of the yoke 100 when the yoke is placed on the support bracket. [38] Here, the center C of the yoke in a thickness direction is aligned with the center C-I

of the head when the yoke is placed on the supporting bracket 310.

[39] Then, when the yokes 100 are placed on the supporting bracket 310 with opposite ends of adjacent yokes facing each other, or when one yoke is placed on the supporting bracket, the center of the yoke is aligned with the center of the head.

[40] The supporting bracket 310 is of a U-shape so as to allow the yoke, which is placed on the supporting bracket, to be easily mounted therein and prevent the turnover in a thickness direction and the movement in a lengthwise direction of the yoke.

[41] Here, the supporting bracket 310 has a support base and support walls 311 on opposite ends of the support base. The center of the support base is aligned with the center of the head and the center of the yoke in a thickness direction, so that opposite faces of the yoke are respectively brought into contact with inner faces of the opposite support walls, so as to prevent the turnover of the yoke to be placed on the supporting bracket.

[42] Then, a fixing member 150 is fixedly inserted into the yoke from its upper portion so as to prevent the yoke, which is placed on the supporting bracket 310, from being disconnected therefrom.

[43] Here, the fixing member 150 is provided with a slot 155 through which a fixing pin

157 is inserted so as to prevent the disconnection of the fixing member, thereby securely supporting the yoke placed on the supporting bracket.

[44] The operation of the present invention having the above construction will now be described.

[45] As illustrated in FIGS. 2 to 8, the support is vertically positioned by the height- adjustable head 300, which is installed on the upper end of the vertical members 250 which are connected in multiple states by means of a joint 270 at a certain height from the ground.

[46] Here, a table form 130 consisting of a board 133 and a joist 135 is installed on the support through the supporting bracket 310 connected to the head 300.

[47] Horizontal members 270 are integrally connected to the horizontally- adjacent vertical members 250 by means of the joint so as to regulate the distance between the adjacent vertical members, and the head 300 is screw-engaged with the upper end of the vertical member in such a manner as to be height-adjustable.

[48] Then, when the yoke 100 is placed on the supporting bracket 310, the center C of the yoke 100 and the center C-I of the head 300 are aligned with each other so as to prevent the turnover of the yoke occurring due to eccentricity of the yoke placed on the supporting bracket 310.

[49] Here, since the yoke 100 can be installed in the supporting bracket 310 with only the simple operation of placing it on the bracket without a separate structure, workability for installation is improved.

[50] Finally, the table form 130 is installed on the yoke 100 placed on the supporting bracket 310 when a worker installs it while moving along the yoke 100.

[51] Here, the width of the yoke 100 corresponds to that of the supporting bracket 310, so that the yoke is not moved in the supporting bracket even when a worker walks on the yoke.

[52] That is, since the side faces of the yoke 100 come into close contact with the inner faces of the support walls 311 of the supporting bracket 310, the movement of the yoke in a thickness direction and therefore the turnover thereof are prevented, as well as the movement in a lengthwise direction due to the supporting bracket 310 having a certain length.

[53] Further, a load to be applied to the yoke 100 is directly transferred to a base of the support via the supporting bracket 310, so as to prevent the turnover of the support owing to eccentricity of the load.

[54] Then, the yoke 100 and the supporting bracket 310 are fixed with insertion of the fixing member 150 into the connecting hole 313 via the pin hole 110, which holes are respectively provided in the yoke and the supporting bracket, so that the yoke 100 is prevented from being disconnected from the supporting bracket 310.

[55] That is, the fixing member 150 has a certain load, so that upon vibration or upon external-interference, it is not disconnected from the pin hole 110 and the connecting hole 313, and upon movement owing to vibrations, it returns to its original position by its own weight.

[56] The fixing member 150 may be of the inverted U-shape, so that adjacent yokes 100, which are linearly arranged with respective ends thereof facing each other, can be supported together on the supporting bracket 310 by a single fixing member 150.

[57] Further, since the yoke 100 may have the positioning recess 140, upon insertion, the fixing member 150 is positioned in the recess of the yoke so as to be flush with the yoke, so that the joist 135 to be placed on the yoke is prevented from rising up due to interference of the fixing member.

[58] Meanwhile, the yoke 100 may be coupled onto the supporting bracket 310 using the covering plate 170 for covering the upper portion and the side faces of the yoke, so that, even though only one end of the yoke 100 is supported to the supporting bracket 310, the yoke 100 is not disconnected from the supporting bracket.

[59] Further, the covering plate 170 may be of an inverted U-shape with its opposite ends formed with elastic hooks 175, so that it is elastically fitted into the fitting slot 315 provided in opposite sides of the supporting bracket 310, thereby supporting the yoke 100 in the covering plate.

[60] Here, the fixing member 150 is inserted into the yoke 100 provided in the covering plate 170 via the pin-insertion hole 173 of the covering plate 170, the pin hole 110 of

the yoke 100, and the connecting hole 313 of the supporting bracket 310, so that the yoke 100 is not disconnected from the supporting bracket 310.

[61] Further, the covering plate 170 may be of the positioning recess corresponding to the positioning recess 140 of the yoke, and the pin-insertion hole 173 near the recess, so as to prevent the projection of the fixing member 150 therefrom, thereby preventing the rising of the joist 135 occurring owing to the interference by the fixing member.

[62] Further, in case of forming the fixing protrusion 177 on the covering plate 170, when the covering plate 170 is elastically fitted to the supporting bracket 310, the fixing protrusion 177 is inserted into the pin hole 110 of the yoke 100, so that the yoke 100 is prevented from being disconnected from the supporting bracket 310 without requiring the use of a separate fixing member.

[63] That is, as set forth before, the yoke 100 is placed on the supporting bracket 310 positioned on the head 300 such that the center C of the yoke 100 and the center C-I of the head 300 are aligned with each other, so that a load applied to the yoke is transferred to the ground without eccentricity. Industrial Applicability

[64] The present invention is applicable to the method and system for supporting the yoke of the support, in which the supporting bracket is provided on the head, which is connected to the vertical member, such that the center of the yoke in a thickness direction is aligned with the center of the head, so that, when the yoke is placed on the supporting bracket, the yoke is securely supported on the head without rolling, thereby facilitating connecting the table form onto the yoke.