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Title:
ASSEMBLY FOR PREVENTING THE VEHICLE PASSAGE
Document Type and Number:
WIPO Patent Application WO/2005/103388
Kind Code:
A1
Abstract:
The assembly of the mobile swing-gate is installed in the channel that is dug across the entire width of the road, and the sides of the excavation are reinforced by wall (5). The created recess is over-bridged by swing-gate (1). One side of swing-gate (1) is connected onto joint (2) that is fixed onto channel wall (5). The opposite side of swing-gate (1) is supported by support grate (3) that by its upper side leans against swing-gate (1) and by its lower side against the corner of wall (5). Steel rope (4) is attached at the upper side of the support grate. By pulling steel rope (4) the support grate (3) eludes bellow swing-gate (1) that remains without support at that side, rotates about joint (2) and falls into the channel, and in such a way a recess is opened in the road.

Inventors:
Pervan, Boris (Laniste 5, Zagreb, 10000, HR)
Application Number:
PCT/HR2005/000027
Publication Date:
November 03, 2005
Filing Date:
April 20, 2005
Export Citation:
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Assignee:
Pervan, Boris (Laniste 5, Zagreb, 10000, HR)
International Classes:
E01F13/12; F41H11/08; (IPC1-7): E01F13/12; F41H11/08
Foreign References:
EP0267343A1
US4554695A
FR2739637A1
Attorney, Agent or Firm:
Inova D. O. O. (Trg zrtava fasizma 14, Zagreb, 10000, HR)
Download PDF:
Claims:
PATENT CLAIMS
1. Assembly for preventing the vehicle passage, characterized by that the assembly is installed across the entire width of the access road for the vehicle traffic in a way that in the road a sufficiently deep and wide excavation is made, so that it cannot be passed by the wheel running vehicle, but in order to enable the vehicle passage over the excavation, the same one is overbridged by the swinggate, which at one side leans against the support that enables the turning of the opposite side, and as the other support serves the mobile plate, by which move the swinggate remains without one support, so that this side of the swinggate falls into the excavation.
2. Assembly for preventing the vehicle passage according to patent claim 1, characterized by that the mentioned assembly consists of support grate (3), steel rope (4), carrier of activating assembly (6), roller (7), small rollers (8), mobile plate (9), coupler (10), limiter (11), weight (12), pulley (13), swinggate (1), and on the lower side of swinggate (1) ribbed supplements (IB) are attached, on one end of swinggate (1) pipes (1C) are attached, and on its opposite end, at the lower side, supporting plates (IA) are attached, and on support wall (5) joint (2) is fixed, which consists of the plate onto which pipe (2B) is fastened, through which passes the shaft of joint (2A).
3. Assembly for preventing the vehicle passage according to patent claim 2, characterized by that mentioned swinggate (1) serves to over bridge the recess on the road and is made of a strong plate, that at its lower side it has fastened vertical ribbed supplements (IB) for increasing the carrying capacity, that on one end of swinggate plates (IA) are attached, against which leans support grate (3), and by means of plates (IA) also the height difference of the lower side of swinggate (1) and of support grate (3) is adjusted, so that the height of the upper side of swinggate (1) is levelled with the road level, that on the opposite side of swinggate (1) pipe (1C) is attached, which is of round shape and with a slot that enables the setting of swinggate (1) on the shaft of joint (2A), that through pipe (1C) shaft (2A) is pulled through, by means of which swinggate (1) is connected with joint (2) in a way that swinggate (1) can freely rotate.
4. Assembly of the mobile swinggate, by means of which the vehicle passage is prevented, according the patent claim 3, characterized by that mentioned joint (2) serves as a support for swinggate (1) at its one side and also enables that swinggate (1) rotates about this support, that joint (2) consists of the plate by means of which it is fastened to the wall of channel (5), that on the plate pipe (2B) of the round shape is attached, through which shaft (2A) is pulled through, by means of which joint (2) is connected with swinggate (1).
5. Assembly of the mobile swinggate, by means of which the vehicle passage is prevented, according to claim 3, characterized by that mentioned support grate (3) serves as the support for swinggate (1) on the side that is opposite of the side where swinggate (1) is connected with joint (2), i.e. it serves that by eluding support grate (3) swinggate (1) would loose this support, what would enable the turning of swinggate (1) about joint (2) and its falling down, and in such a way a recess in the road is opened preventing the vehicle passage, that support grate (3) consists of two pipes that are parallel disposed and interconnected with several pipes attached vertically to it.
6. The assembly of mobile swinggate for preventing the vehicle passage according to patent claim 2, characterised by that mentioned steel rope (4) serves that by pulling it support grate (3) eludes bellow swinggate (1), that it is attached in the middle of the upper side of support grate (3), that steel rope (4) is placed into the tubular protection, which protects it from dirt, enables an easy using and a simple layingdown of steel rope (4) into the ground.
7. Assembly of mobile swinggate for preventing the vehicle passage according to patent claim 2, characterized by that mentioned assembly carrier (6) is fastened onto the casing walls and serves as the assembly carrier, that in the middle it has an opening through which passes roller (7), that in the symmetry axis of the opening two grooves (6A) are made, in which small rollers (8) are placed in a way that the recess of groove (6A) is equal to the radius of small rollers (8) and the length of groove (6A) is equal to the diameter of small rollers (8).
8. Assembly for activating the mobile swinggate according to patent claim 7, characterized by that mentioned roller (7) serves to enable the locking and simple unlocking of the assembly, that on its periphery semicircular groove (7A) is made into which enter little rollers (8), that groove (7A) is of semicircular shape with the diameter equal to the radius of little rollers (8) and somewhat shallower than the radius of little rollers (8), that on its upper side the steel rope is attached, which other end is attached to support grate (3), that on the lower side of roller (7) weight (12) is attached, which, after roller (7) is unlocked, falls down and pulls steel rope (4) in such a way.
9. Assembly for activating the mobile swinggate according to patent claim 8, characterized by that mentioned small rollers (8) serve for locking roller (7) and for holding it on assembly carrier (6), that, after being liberated, they move away from roller (7) and unlock it in such a way, and that they are placed in grooves (6A) on assembly carrier (6).
10. Assembly for activating the swinggate according to patent claim 2, characterized by that mentioned mobile plate (9) serves to keep roller (7) locked and that by its withdrawing little rollers (8) are liberated and exit from groove (7A) unlocking roller (7) in such a way, 90 that mobile plate (9) has made opening (9A) for dragging the plate manually at one side, that on the other side a slot is made that is narrower in its upper part (9B) and gets wider in its lower part (9C), that the slot dimension on narrower part (9B) is equal to the sum of the diameter of groove (7A) and two diameters of small rollers (8) in a 95 way that, when roller (7) is positioned in the height level of assembly carrier (6), little rollers (8) enter into groove (7A) of roller (7) and mobile plate (9) on the inner walls of slot (9B) presses little rollers (8) and keeps them in groove (7A) of roller (7), that in such a way roller (7) is fixed to assembly carrier (6), that after dragging mobile plate (9) 100 slot (9C) being wider in its lower part permits along grooves (6A) on assembly carrier (6) the rolling away of little rollers (8) pressed by the slope of groove (7A), that in such a way, when the assembly for activating is in the position that weight (12) is lifted and swinggate (1) is in horizontal position on the road, mobile plate (9) is in the 105 position when the inner walls of opening (9B) keep and press small rollers (8) into groove (7A) of roller (7), that by dragging mobile plate (9) into the height level of little rollers (8) the wider part of opening (9C) would arrive, so that little rollers (8) pressed by the slope of groove (7A) exit from groove (7A), roller (7) is liberated, weight (12) 110 that is attached to it presses it downwards, roller (7) pulls steel rope (4) that is attached on the upper side of roller (7) and steel rope (4) via pulley (13) drags support grate (3).
11. Assembly for activating the swinggate according to patent claim 2, characterized by that mentioned coupler (10) serves for stopping 115 the motion of mobile plate (9) while dragging it, in order that it would not be entirely drawn out, and that it is attached by screws to mobile plate (9).
12. Assembly for activating the swinggate according to patent claim 2, characterized by that mentioned limiter (11) serves for stopping the 120 motion of mobile plate (9) while dragging it, in order that coupler (10) would not reach groove (7A) and stop the motion of roller (7), and that it is attached near the opening on assembly carrier (6).
13. Assembly for activating the swinggate according to patent claim 2, characterized by that mentioned weight (12) serves to pull steel 125 rope (4) after roller (7) has been liberated and to shift in such a way support grate (3), that it is attached at the lower side of roller (7) and composed of several lighter parts with slots at the centre, what enables an easy mounting and dismounting of weight (12), and in such a way also an easy disposing of the assembly.
14. 14. Assembly for activating the swinggate according to patent claim 2, characterized by that mentioned pulley (13) serves to bring via it the steel rope into the vertical position, and to facilitate the motion of the steel rope and its transition from the vertical into the horizontal position. AMENDED CLAIMS (received by the International Bureau on 07 October 2005 (07.10.2005); original claims 114 have been replaced by amended claims 114 (5 pages).
15. 1 Assembly for preventing the vehicle passage is installed across the entire width of the access road for the vehicle traffic in a way that in the road a sufficiently deep and sufficiently wide excavation is made, so that it cannot be passed by the wheelrunning vehicle, but in order to enable the vehicle passage over the excavation, the same one is overbridged by the swinggate, cha racte rized by that the swinggate at one side leans against the support that enables the opposite side of the swinggate to be lowered into the excavation, that on the opposite side the swinggate leans against a mobile support that by its lower side stands on the bottom of the excavation, that one end of the swinggate leans against the upper side of the mobile support, and that, when by pulling tine steel rope, the mobile support is pulled out underneath one end of the swinggate, the swinggate remains without one support, and this side of the swinggate falls into the excavation and remains in the vertical position, preventing in such a way the vehicle passage from both directions..
16. Assembly for preventing the vehicle passage according to patent claim 1, cha racterized by that the mentioned assembly consists of support grate (3), steel rope (4), carrier of activating assembly (6), roller (7), small rollers (8), mobile plate (9), coupler (10), limiter (11), weight (12), pulley (13), swinggate (I)7 and on the lower side of swinggate (1) ribbed supplements (IB) are attached, on one end of swinggate (1) pipes (1C) are attached, and on its opposite end, at the lower side, supporting plates (IA) are attached, and on support wall (5) joint (2) is fixed, which consists of the plate onto which pipe (2B) is fastened, through which passes the shaft of joint (2A).
17. Assembly for preventing the vehicle passage according to patent claim 2, cha racterized by that mentioned swinggate (1) serves to overbridge the recess on the road and is made of a strong plate, that 15 at Its lower side it has fastened vertical ribbed supplements (IB) for increasing the carrying capacity, that on one end of swinggate plates (IA) are attached, against which leans support grate (3), and by means of plates (IA) also the height difference of the lower side of swinggate (1) and of support grate (3) is adjusted, so that the height of the upper side of swinggate (1) is levelled with the road level, that on the opposite side of swinggate (1) pipe (1C) is attached, which is of round shape and with a slot that enables the setting of swinggate (1) on the shaft of joint (2A)7 that through pipe (1C) shaft (2A) is pulled through, by means of which swinggate (1) is connected with joint (2) in a way that swinggate (1) can freely rotate.
18. Assembly for preventing the vehicle passage according to patent claim 3, cha racterized by that mentioned joint (2) serves as a support for swinggate (1) at its one side and also enables that swing gate (1) rotates about this support, that joint (2) consists of the plate by means of which it is fastened to the wall of channel (5), that on the plate pipe (2B) of the round shape is attached, through which shaft (2A) is pulled through, by means of which joint (2) is connected with swinggate (1).
19. Assembly for preventing the vehicle passage according to claim 3, c ha ra cte rized by that mentioned support grate (3) serves as the support for swinggate (1) on the side that is opposite of the side where swinggate (1) is connected with joint (2), i.e. it serves that by eluding support grate (3) swinggate (1) would loose this support, what would enable the turning of swinggate (1) about joint (2) and its falling down, and in such a way a recess in the road is opened preventing the vehicle passage, that support grate (3) consists of two pipes that are parallel disposed and interconnected with several pipes attached vertically to it 6 The assembly for preventing the vehicle passage according to patent claim 2, cha racterised by that mentioned steel rope (4) serves 16 that by pulling it support grate (3) eludes bellow swinggate (1), that it is attached in the middle of the upper side of support grate (3), that steel rope (4) is placed into the tubular protection, which protects it from dirt, enables an easy using and a simple layingdown of steel rope (4) into the ground. 7. Assembly for preventing the vehicle passage according to patent claim 2, cha racte rized by that mentioned assembly carrier (6) is fastened onto the casing walls and serves as the assembly carrier, that in the middle it has an opening through which passes roller (7), that in the symmetry axis of the opening two grooves (6A) are made, in which small rollers (8) are placed in a way that the recess of groove (6A) is equal to the radius of small rollers (8) and the length of groove (6A) is equal to the diameter of small rollers (8). 8. Assembly for preventing the vehicle passage according to patent claim 7, cha racte rized by that mentioned roller (7) serves to enable the locking and simple unlocking of the assembly, that on its periphery semicircular groove (7A) is made into which enter little rollers (8), that groove (7A) is of semicircular shape with the diameter equal to the radius of little rollers (8) and somewhat shallower than the radius of little rollers (8), that on its upper side the steel rope is attached, which other end is attached to support grate (3), that on the lower side of roller (7) weight (12) is attached, which, after roller (7) is unlocked, falls down and pulls steel rope (4) in such a way. 9. Assembly for preventing the vehicle passage according to patent claim 8, c ha racterized by that mentioned small rollers (8) serve for locking roller (7) and for holding it on assembly carrier (6), that, after being liberated, they move away from roller (7) and unlock it in such a way, and that they are placed in grooves (6A) on assembly carrier (6). 10. Assembly for preventing the vehicle passage according to patent claim 2, c h a ra cterized by that mentioned mobile plate (9) serves to keep roller (7) locked and that by its withdrawing little rollers (8) are 17 liberated and exit from groove (7A) unlocking roller (7) in such a way, that mobile plate (9) has made opening (9A) for dragging the plate 95 manually at one side, that on the other side a slot is made that is narrower in its upper part (9B) and gets wider in its lower part (9C), that the slot dimension on narrower part (9B) is equal to the sum of the diameter of groove (7A) and two diameters of small rollers (8) in a way that, when roller (7) is positioned in the height level of assembly 100 carrier (6), little rollers (8) enter into groove (7A) of roller (7) and mobile plate (9) on the inner walls of slot (9B) presses little rollers (8) and keeps them In groove (7A) of roller (7), that in such a way roller (7) is fixed to assembly carrier (6), that after dragging mobile plate (9) slot (9C) being wider in its lower part permits along grooves (6A) on 105 assembly carrier (6) the rolling away of little rollers (8) pressed by the slope of groove (7A), that in such a way, when the assembly for activating is in the position that weight (12) is lifted and swinggate (1) is in horizontal position on the road, mobile plate (9) is in the position when the inner walls of opening (9B) keep and press small no rollers (8) into groove (7A) of roller (7), that by dragging mobile plate (9) into the height level of little rollers (8) the wider part of opening (9C) would arrive, so that little rollers (8) pressed by the slope of groove (7A) exit from groove (7A), roller (7) is liberated, weight (12) that is attached to it presses it downwards, roller (7) pulls steel rope 115 (4) that is attached on the upper side of roller (7) and steel rope (4) via pulley (13) drags support grate (3). 11. Assembly for preventing the vehicle passage according to patent claim 2, characterized by that mentioned coupler (10) serves for stopping the motion of mobile plate (9) while dragging it, in order that 120 it would not be entirely drawn out, and that it is attached by screws to mobile plate (9). 12. Assembly for preventing the vehicle passage according to patent claim 2, cha racte rized by that mentioned limiter (11) serves for 18 stopping the motion of mobile plate (9) while dragging it, in order that 125 coupler (10) would not reach groove (7A) and stop the motion of roller (7), and that it is attached near the opening on assembly carrier (6). 13. Assembly for preventing the vehicle passage according to patent claim 2, c ha ra cterized by that mentioned weight (12) serves to pull steel rope (4) after roller (7) has been liberated and to shift in such a 130 way support grate (3), that it is attached at the lower side of roller (7) and composed of several lighter parts with slots at the centre, what enables an easy mounting and dismounting of weight (12), and in such a way also an easy disposing of the assembly. 14. Assembly for preventing the vehicle passage according to patent claim 135 2, cha ra cterized by that mentioned pulley (13) serves to bring via it the steel rope into the vertical position, and to facilitate the motion of the steel rope and its transition from the vertical into the horizontal position.
Description:
ASSEMBLY FOR PREVENTING THE VEHICLE PASSAGE

Invention description

This invention is related to the system for the security of objects, by which the vehicle access towards the secured object by the traffic road can be selectively prevented, and in accordance with the international patent classification (IPC) it can be classified as:

Invention related field

The invention is related to the field of securing the objects from the access of undesired vehicles in the vicinity of the protected object, precisely; by means of it the approach of an undesired vehicle to the secured object by the access road is prevented.

Technical problem

The objects, for which the security protection is required, have the survey and selection of the vehicle access to the object, and for this purpose various systems are used by which the approach of undesired vehicles to the protected object by the access road is tried to be prevented. Then, the checking of all coming vehicles is made for the security reasons, and, after the checking, some of them are let through. But, sometimes a vehicle that is not let through tries by force to approach the protected object. The intrusion of such vehicles is tried to be prevented in various ways.

State-of-art

The access roads to the protected object are secured in several ways from the approach of undesired vehicles that pass the check-point by force: by additional security positions set along the access road; by barriers placed on the access road, which decelerates the drive; and by various devices for piercing and damaging the vehicle tyres. Such devices are placed along the road and, if necessary, are placed across the road in various ways in order to prevent or decelerate the motion of the undesired vehicle.

Disclosure of the invention essence

The invention Assembly for preventing the vehicle passage is assigned for installing in the roads where the vehicle traffic is checked and, after checking, the passage is permitted only to certain vehicles, and it is assigned for the total passage prevention of all vehicles that try by force to pass by this road, in a simple manipulation way, without the use of complicated assemblies and electronics, without the need and dependence on any kind of energy source and at a simple checking of the assembly correctness, and after that the assembly is quickly and simply set in the position by which the vehicle passage is again possible.

The assembly for preventing the vehicle passage consists of the swing- gate assembly by which the vehicle passage is prevented and of the assembly for its activating.

The swing-gate assembly consists of swing-gate (1) by which the recess in the road is covered, the channel that is dug through the entire road width and reinforced by wall (5), joint (2) that is attached to the channel wall (5) dug in the road, support grate (3) that supports swing-gate (1), and of steel rope (4) by which support grate (3) is dragged.

The activating assembly consists of assembly carrier (6), roller (7), and little rollers (8) that hold back roller (7), mobile plates (9), weight (12) and pulley (13).

At the moment when some vehicle tries to pass by force the road on which the invention Assembly for preventing the vehicle passage is installed, it is sufficient to pull mobile plate (9), by that weight (12) that drags steel rope (4) is liberated, and the latter eludes support grate (3). When the support grate eludes below swing-gate (1), it stays without support on one end so that it rotates about joint (2) and falls into the channel. In such a way, in a short time a recess is opened that prevents the vehicle passage. If the vehicle approaches at a great speed, then the front wheels fall into the channel causing the wheel breaking.

This invention introduces the possibility of a quick, efficient and total prevention of the vehicle passage across the road into which the invention is installed. The invention is not dependent on any energy source; it is resistant to temperature differences and to pollution. It is simple to use, it does not require any special training for manipulation, and it does not require the maintenance and enables a simple regular work survey. And, after the work survey, the assembly is quickly and easily again disposed into the position, where the vehicle passage is enabled.

In such a way, by this invention the technical novelties with respect to the present state-of-art are introduced.

Short description of drawings

Fig. 1 Disposition scheme of the assemblies for preventing the vehicle passage.

Fig. 2 Lateral cross-section of the swing-gate assembly in the position when the vehicle passage is enabled.

Fig. 3 Lateral cross-section of the swing-gate assembly in the position when the vehicle passage is prevented.

Fig. 4 Lateral cross-section of the swing-gate assembly in the position when the vehicle passage is enabled, and the assembly is installed in the road where the vehicles arriving at high speed could be expected.

Fig. 5 Cross-section A-A. Front view of the swing-gate assembly.

Fig. 6 Drawing of the assembly for activating the swing-gate.

Fig. 7 Cross-section B-B. Front view of the assembly for activating the swing- gate. Fig. 8 Cross-section C-C. Lateral cross-section of the assembly for activating the swing-gate.

Detailed description of the invention realisation

85 The assembly for preventing the vehicle passage is assigned to be installed in the roads with the purpose of preventing the vehicle passage. It consists of the swing-gate assembly and the activating assembly. The scope of the invention is that on the road, on which the traffic is carried out disturbless and without retardation, in a very short time, without using any energy sources 90 and complex assemblies, the passage of all wheel-running vehicles is prevented safely and efficiently.

Figure 1

Disposition scheme of the assembly for preventing the vehicle passage

The assembly of the swing-gate is set into the channel that is dug 95 through the entire road width. The excavation is reinforced by wall (5) made of strong material. The recess created by digging through the channel is over- bridged by swing-gate (1). One side of swing-gate (1) is attached onto joint (2) that is fastened into channel wall (5). The other end of swing-gate (1) is supported by support grate (3), which leans by its upper side against swing-gate 100 (1) and by its lower side against the corner of support wall (5). At the upper side of the support grate, steel rope (4) is attached. By pulling steel rope (4) support grate (3) eludes bellow swing-gate (1), which remains without support on that side, rotates about joint (2), falls into the channel and in such a way opens the recess in the road, which is sufficiently wide to prevent the vehicle passage.

105 The pulling of steel rope (4) is possible to be done manually too, but, when on the road several swing-gate assemblies are set, then also the assembly for activating the swing-gate can be used. Then the energy of the weight fall is used. This gives a great security at using the swing-gate assembly, because, due to the action of low temperatures, humidity, corrosion, accumulated dirt or sand, 110 it could come to a stoppage at work when steel rope (4) is pulled manually. The assembly for activating the swing-gate consists of assembly carrier (6) that is fixed onto the wall of the casing, roller (7), small rollers (8), mobile plate (9), coupler (10), weight (12) and pulley (13).

When mobile plate (9) is manually dragged, roller (7) is unlocked, and 115 weight (12) falls down and pulls steel rope (4) that eludes support grate (3).

Figure 2

Lateral cross-section of the swing-gate assembly in the position when the vehicle passage is enabled.

The swing-gate assembly for preventing the vehicle passage is set in the 120 channel that extends by the entire width of the road. The excavation is reinforced by wall (5) made of a strong material. The recess created by the channel digging-through is over-bridged by swing-gate (1) that could have ribbed supplements (IB) at the lower side to increase the carrying capacity. Plates (IA), which serve for the supporting of support grate (3), are attached at 125 the front side of the swing-gate, and pipe (1C), which is round and with a slot on the front side to enable the disposing of swing-gate (1) on the shaft of joint (2A), is attached at the other side of swing-gate (1). Through pipe (1C) and pipe (2B) shaft (2A) is pulled through, by means of which swing-gate (1) is connected with joint (2) in a way that swing-gate (1) can freely rotate about joint (2) that 130 is fixed in channel wall (5). The opposite side of swing-gate (1) is supported by support grate (3), which by its upper side leans against swing-gate (1) and plate (IA), and by its lower side against the corner of support wall (5). Steel rope (4) is attached at the upper side of support grate (4). At this position of the swing- gate, the traffic on the road is safe and disturbless.

135 Figure 3

Lateral cross-section of the swing-gate assembly in the position when the vehicle passage is prevented. The assembly of the swing-gate is set in the channel that is dug through the entire width of the road. The recess created by the digging is over-bridged by 140 swing-gate (1). One side of swing-gate (1) is attached to joint (2), while the opposite side of swing-gate (1) is supported by support grate (3), which by its upper side leans against swing-gate (1) and plates (IA) that are fixed to swing- gate (1), and by its lower side the support grate (3) leans against the corner of support wall (5). Steel rope (4) is attached at the upper side of the support 145 grate. By pulling steel rope (4), support grate (3) eludes bellow swing-gate (1), which remains without a support on that side, rotates about joint (2), falls into the channel and in such a way opens the recess on the road that is sufficiently wide to prevent the vehicle passage. If the vehicle approaches by a great speed, the front wheels will fall into the channel and it comes to the wheel breaking.

150 Figure 4

Lateral cross-section of the swing-gate assembly in the position when the vehicle passage is enabled and when the assembly is installed into the road, where the approach of a high speed vehicle is expected.

If there exists a possibility that the vehicle that tries to approach by force 155 the secured object will develop a great speed of motion on the road that is secured by the assembly for preventing the passage, and it is expected that the recess width on the road is not sufficient, then the side of the channel that is opposite from the vehicle approaching direction should be made in a way, that it is somewhat higher, i. e. elevated from the road level. In such a way, the 160 passage is prevented even of those vehicles, which could develop a great speed before reaching the swing-gate and in such a way try to approach the protected object.

Figure 5

Cross-section A-A. Front view of the swing-gate assembly.

165 The assembly of the swing-gate is set in the channel that is dug through the entire road width. The excavation is reinforced by wall (5) made of a strong material. The recess created by the channel digging on the road is over-bridged by swing-gate (1) that is supported by support grate (3). Swing-gate (1) can have ribbed supplements (IB) on the lower side for increasing the carrying 170 capacity. Plates (IA) are attached at the front side of the swing-gate, which serve for supporting support grate (3). Support grate (3) by its upper side leans against swing-gate (1), and by its lower side against the corner of support wall (5). Steel rope (4) is attached at the upper side of the support grate. By pulling steel rope (4), support grate (3) eludes bellow swing-gate (1) that remains 175 without support and falls into the channel. In such a way a recess in the road is created, which is sufficiently wide to prevent the vehicle passage.

Figure 6, 7 and 8

Front views and cross-sections of the swing-gate activating assembly.

The assembly for activating the swing-gate consists of assembly carrier 180 (6) that is fixed to the casing walls, roller (7), two little rollers (8), mobile plate (9), coupler (10) that closes mobile plate (9), limiter (11) that puts limitations to the motion of mobile plate (9) during its dragging, weight (12) and pulley (13). The assembly serves to liberate weight (12) after pulling mobile plate (9), which falls down and pulls steel rope (4) that moves support grate (3).

185 The assembly for activating the swing-gate works in the following way: assembly carrier (6) has a bore in the middle, into which enters roller (7). Two grooves (6A) are made around the bore, into which little rollers (8) are placed. The depth of grooves (6A) is approximately of the same size as the diameter of little rollers (8), and the length of grooves (6A) is equal to the diameter of little 190 rollers (8). Roller (7) has made semi-circular groove (7A) on its periphery, into which enter little rollers (8). Groove (7A) is of semi-circular shape, but somewhat shallower than the diameter of little rollers (8). Mobile plate (9) has made opening (9A) for dragging the plate manually at one side and slot (9B and 9C). The slot is narrower at its upper part (9B) and widens at its lower part (9C). The 195 slot width on its narrower part (9B) is equal to the sum of diameters of groove (7A) and two diameters of little rollers (8). So, when roller (7) is positioned in the height of assembly carrier (6), little rollers (8) enter into groove (7A) of roller (7), and mobile plate (9) presses little rollers (8) and keeps them into groove (7A) of roller (7). In such a way, roller (7) is fixed, i.e. locked to assembly carrier 200 (6). The slot (9C) on mobile plate (9) is wider in its lower part, permitting the rolling of little rollers (8) along grooves (6A) on assembly carrier (6).

When the assembly for activating is in the position that weight (12) is lifted and swing-gate (1) on the road is in the horizontal position, then mobile plate (9) is in the position when the wall of opening (9B) on it keeps little rollers 205 (8) in groove. By dragging mobile plate (9) onto the height level of little rollers (8), the wider part of opening (9C) arrives, so that little rollers (8) pressed by the slope of groove (7A) come out of it.

In such a way, roller (7) is liberated. Weight (12) attached to it pulls it downwards, and it pulls steel rope (4) attached on the upper side of roller (7), 210 so that steel rope (4) via pulley (13) drags support grate (3).




 
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