KR850001092B1 - Device for coupling scaffold elements - Google Patents

Abstract

This invention is related to a device for coupling scaffold elements such that the horizontal element(11) is supported and fixed to the vertical element(3). A bowl-shaped element(2), which is composed of a concave internal wall(6), is attached to the vertical element(3). A hook-type element(9), which is located at the end of the horizontal element(11), is combined with the space(4) of the bowl-shaped element(2). The first clamping element(14) has a clamping surface(20,21) and can be moved to the front and rear. The second clamping element(22) acts on a wedge.

Description

Unit member coupling device for scaffolding

1 is an exploded perspective view of a coupling device of a first example of the present invention.

2 is a partial exploded view of a coupling device in a slightly modified coupling state.

3 is a partial exploded view of the coupling device of FIG.

4 is a plan view of a coupling device having a cross section of a vertical member included in the scaffolds of the examples shown in FIGS. 2 and 3;

5 is a coupling device according to the invention further modified.

6 is an illustration of a scaffold provided with a coupling device according to the invention.

The present invention relates to an apparatus for joining a vertical member and a horizontally oriented horizontal member together in a scaffold or the like.

Coupled devices for scaffolding with various structures are known. For example, a coupling device is known which consists of parts belonging to a vertical member of a scaffold having a plurality of members projecting radially in different predetermined directions, in which case the horizontal member is adapted to be hooked to the vertical member. This type of coupling device allows individual coupling and disengagement of the horizontal members, but the horizontal members can only be coupled to the vertical members in any predetermined direction, usually in four directions perpendicular to each other. On the other hand, there are known devices which can connect the horizontal members to the vertical members in the desired direction, but they are designed so that the separate separation of the horizontal members is impossible. That is, at the point of engagement of a number of horizontal members to a vertical member, even if only a few horizontal members are desired to be separated and joined, all these horizontal members must be joined to the vertical members or dismantled from the vertical members.

The object of the present invention is to eliminate the above-mentioned shortcomings in the known joining device, on the one hand, to couple the horizontal member to the vertical member in any direction from the vertical member, and on the other hand to the vertical member independently of the other horizontal member It is to provide a device that can be combined or disassembled.

The above object of the present invention extends at intervals from the vertical member to define a space therebetween, the lower part is connected to the vertical member and the upper part is a bowl-shaped member formed of an open wall, and is located at one end of the horizontal member. A first clamping member comprising a hook-type member adapted to engage and engage the wall of the bowl-shaped member, at least one clamping plane movable relative to the horizontal member and supporting the vertical member or the bowl-shaped member; The clamping member is pushed toward the vertical member and the horizontal member is pushed away from the vertical member so that the clamping member can be adjusted to the disengaging position and the engaging position so as to be fixed to the engaging member by the hook-shaped member, and the first clamping position at the engaging position. A combination comprising a second clamping member each configured to be strongly gripped between the member and the horizontal member It is achieved by the device.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The structure of the coupling device can be seen from the exploded view of the embodiment shown in FIG. As can be seen from FIG. 1, the coupling device 1 according to the invention consists of a bowl-shaped member 2 belonging to the vertical member 3 of the scaffold. The bowl-shaped member 2 is formed around the entire circumference of the vertical member 3, for example, between the concave wall 6 of the bowl-shaped member 2 having a hemispherical concave surface and the wall 5 of the vertical member. An axially symmetrical body is defined which defines the space 4. In the illustrated example, the bowl-shaped member is firmly welded to the vertical member, and has a discharge opening 8 between the welds 7 for discharging water and garbage. These openings 8 can also be used as cleaning holes, in which case a large object can be easily pushed out by a screwdriver or the like introduced into the opening 8 from below. In addition, the coupling device 1 according to the present invention has a hook-like member 9 protruding from the end portion 10 of the horizontal member 11. For example, the horizontal member 11 constitutes an elongated horizontal member of the scaffold shown in FIG. The hook-shaped member 9 is, on the one hand, a bowl 12 which is concave at the same curvature as the wall 5 of the vertical member 3 and, on the other hand, away from the surface 12 described above. It is composed of a surface 13 in a shape that can be fitted to the inner wall 6 of the mold member 2. The first clamping member 14 also included in the coupling device 1 can move along the end portion 10 of the horizontal member 11 between the hook-shaped member 9 and the elongated tubular portion 15, The end portion 10 is slightly inserted into the tube portion 15. For example, the tubular part 15 is pressed or welded onto the end part 10. The first clamping member 14 mainly consists of two side portions 16 and two transverse portions 17, 18. The side portions 16 each have two recessed surfaces 20 and 21 adapted to support the recesses 19 suitable for accommodating the bowl-shaped member 2 and the walls 5 of the vertical member 3 in the assembled state. ) The coupling device 1 also includes a wedge-shaped second clamping member 22, which clamps the hole 23 in the end portion 10 made of a solid metal material, for example steel. It is adapted to be inserted through. The second clamping member 22 has two corners 24 and 25, and the two corners 24 and 25 are gathered in a downward direction from each other, and one of the corners 24 is the first clamping member 14. And the other edge 25 is to cooperate with the surface 27 of the hole 23 of the end portion 10 (see FIGS. 2 and 3). have.

2 shows in detail how the various parts cooperate with each other in the coupling device 1 of the present invention in a coupled state.

The second clamping member 22 of the example shown in FIGS. 2, 3, and 4 includes two pins 26 which protrude laterally from each side as the ones of FIG. 1 are modified. (26) are different from the first diagram only in that they form a stop member that strikes the lower side of the end portion 10 to prevent the second clamping member 22 from being completely pulled out of the hole 23. As a result, the stability in the coupling device of the present invention is increased. The state in which the second clamping member 22 is raised and assembled is shown in FIG. Thus, in the assembled state, the operation of the coupling device is almost the same as the example according to FIG. 1 in the examples of FIGS. 2, 3 and 4, but the positions of the included parts are slightly different during joining and detaching.

The process of coupling the horizontal member 11 to the vertical member 3 is as follows.

In the state where the components are completely separated as shown in FIG. 1, the first clamping member 14 is moved from the hook-shaped member 9 to the right, and then the hook-shaped member 9 is moved to the bowl-shaped member 2. ) Into the space 4 between the vertical member 3 and the first clamping member 14 to the left over the hole 23 in the end portion 10, and then the second clamping member 22 is moved. A suitable tool such as a hammer is used to penetrate the hole 23 and insert it in the state as shown in FIG. At this time, due to the wedge action of the second clamping member 22, the clamping surfaces 20 and 21 of the first clamping member 14 are strongly pressed against the wall 6 of the vertical member 3, and at the same time the hook type member ( The convex surface of 9 is pressed against the inner surface of the bowl-shaped member 2 so that the vertical member 3 and the horizontal member 11 are firmly engaged. It is advantageous to provide the hole 23 with an inclined surface corresponding to the inclination of the corner 25 in the assembled state of the coupling device for contacting the surface. This is best shown in FIG. 2 showing the second clamping member 22 holding the transverse portions 17, 18 and the position of the second clamping member 22 in the hole 23.

In the assembled state of the coupling device, a very rigid coupling is supported by the bowl-shaped member 2 and the first clamping member 14 in which radial or axial forces with respect to the vertical member are supported, as well as the horizontal member 11 by the vertical member. It is obtained by supporting a force to be rotated to different positions with respect to.

The disassembly of the horizontal member 11 from the vertical member may be performed in the same manner as in principle but in reverse order and reverse motion. Therefore, when the second clamping member 22 is removed from the fully inserted position, the first clamping member ( 14) and the clamping action on the hook-shaped member 9. The first clamping member 14 is rearward when the second clamping member 22 in the example shown in Fig. 1 is completely removed. That is, the horizontal member 11 can be removed by moving in the direction of the tube portion 15 and then lifting the hook-like member 9 out of the bowl-shaped member 2.

In the examples shown in FIGS. 2, 3 and 4, the engagement by means of the coupling device occurs mainly in the same way as in the example shown in FIG. 1, but in the initial position the second clamping member is a hole 23 Only partially lifted from), and the first clamping member 14 is lifted from the bottom as shown in FIG. 3 so that the hook-shaped member 9 is caught by the bowl-shaped member 2.

When the above operation is made, the first clamping member 14 supports the vertical member 3 together with its clamping surfaces 20 and 21, as in the description of FIG. 1, and then the second clamping surface. (22) can be put into the position shown in FIG. Subsequent manipulations are consistent with those described with respect to FIG.

4 shows four horizontal members 11 connected to the vertical members 3 in the direction perpendicular to each other with the coupling device according to the present invention. However, according to the invention, the horizontal members 11 can be coupled in any direction with respect to each other and with respect to the horizontal member 11 to any predetermined position of the vertical member 3. 4 shows that the clamping surfaces 20, 21 in the example shown are not obliquely inclined to engage the walls of the vertical members, thereby providing a gap between the clamping surfaces 20, 21 and the walls 5 of the vertical members. A particularly stable edge engagement is achieved that does not rotate through the edge contact of the. Indeed, a slight deformation of the wall 5 occurs, with the result that the engagement is further enhanced.

Therefore, according to the present invention, each of the horizontal member 11 with respect to the vertical member 3 can be combined and dismantled separately. In the example shown in FIGS. 2, 3 and 4, when disassembling one of the horizontal members 11, the second clamping surface 22 is pushed upward at the disengagement position shown in FIG. The first clamping member 14 can then be rotated and the horizontal member 11 can be peeled off from the bowl-shaped member 2 together with its hook-shaped member 9. Then, the horizontal member 1 can be removed from the vertical member 3.

In the variant shown in FIG. 5, the first clamping member 14 is slightly deformed and the upper and lower guide walls are provided on each side of the end portion 10 of the horizontal member 11. These guide walls 28, 29, for example, consist of transverse metal parts extending from one end plate 16 to the other end plate. In this example, the second clamping member is pivotally mounted to the eccentric pin 30 having a clamping surface 32 which is placed opposite the edge surface 33 of the end plate 16 instead of the wedge-shaped clamping member. The arm 31 is comprised. Arms 31 may be suitably disposed on each side of end portion 10 such that each end plate 16 cooperates with the arm for symmetry of the force. The pin 30 is thus fixed to the horizontal member 11 and extends through the hole, for example. In FIG. 5, the coupling device is shown assembled, in which case the clamping member 14 is pressed against the vertical member mainly in the same manner as in the above-described example, and the clamping action is applied to the end portion of the horizontal member 11 ( 10) and by pressing the edge surface 33 of each of the end plates of the clamping member together with the clamping surface 32 thereof. In this assembled position, the arm 31 is suddenly mounted by a guard plate 34 mounted on top of the end portion 10 and extending slightly laterally than the full width of the horizontal member to cover the arm 31. Protected from operation. Upon detachment, the arm 31 rotates down with respect to its pin 30 and, due to the continuous reduction in radius for the pin 30 acting as a pivoted center, the clamping member 14 is released and the horizontal member 11 can be moved rearward so that it can be disassembled from the vertical member 3.

6 shows an example of a scaffold 12 equipped with a coupling device 1 according to the invention. Therefore, the vertical member 3 may be provided with a bowl-shaped member 2 at regular intervals along its length, and each of the horizontal members 11 has the above-described end where the hook-shaped member 9 is mounted at each of its two ends. It consists of parts 10. Due to the robustness obtained by the coupling device of the present invention, such scaffolds can be lifted, for example, by a crane and moved while maintaining the correct condition. For example, lift tower-type scaffolds can be laid down and lifted by crane to the vertical position to be used.

Important for the present invention is that the end of the horizontal member, ie the hook-shaped member 9, is not pressed against the vertical member to support the horizontal member, but instead from the vertical member towards the wall 6 of the bowl-shaped member 2. Is apart. As a result, the same center distance between the vertical members can be maintained at the same distance between the axial center of the bowl-shaped member and the wall 6 and also in the vertical members having different diameters. This is of great benefit when assembling the scaffolding into an insertable vertical member, ie when telescopically joining a smaller diameter upper vertical member to a larger diameter bottom vertical member.

The invention is not limited to the examples described above and shown in the drawings, but may be modified within the scope of the following claims. For example, the coupling device according to the invention can be used for a mold stand for supporting molds in other forms of scaffolding, such as in a foundry, other than for building scaffoldings. Moreover, the bowl member can have a different shape, for example, It can also be manufactured to have a flat outer wall and a flat bottom. Openings can be made larger or smaller in the bottom, for example the bottom can be replaced by spaced apart members supporting the wall 6.

It is also possible to replace the bowl-shaped member with a plurality of yokes that determine the maximum number of horizontal members 11 so that the inner wall 6 extending at intervals from the vertical member is replaced by a plurality of separate walls. . The yoke can be made of iron, for example u-shaped. Likewise, the hook-like member 9 and the clamping member 14 can have completely different shapes. The four clamping surfaces can for example be replaced by wider tight clamping surfaces at the top and bottom.

The first clamping member may consist of a clamping surface adapted to support only a vertical member on one side of the bowl-shaped member, the first clamping member being pivotally moved, for example so that the end portion of the horizontal member 11 does not fall out. It may be fixed as possible.

For example, the first clamping member 14 may be composed of one of the end plates 16. In this case, the hole 23 is formed long in the longitudinal direction of the horizontal member so that the clamping member 14 is inserted therein and then the second clamping. The member 22 can be inserted into the outside of the first clamping member described above in the hole 23 so as to press against the edge surface 33 (see FIG. 5) thereof.

The first clamping member described above may be two parts, in which case the bottom portion forming the bottom clamping surface is displaced from the hole in the longitudinal direction of the horizontal member and installed in the clamping position by the other second clamping member (eg wedge) described above. You can do that. The threaded nut on the horizontal member of the circular cross section can be rotated to displace in the axial direction of the horizontal member and used as another clamping member for pressing the first clamping member described above with respect to the vertical member. The nut may be replaced with a tube having an inclined length that compresses the first clamping member against another member that can rotate axially about the horizontal member, such as the vertical member upon rotation.

Furthermore, the hook-like member 9 can in fact be made to have a constant clearance with respect to the vertical member 3, which nevertheless gives a rigid connection without flow in accordance with the principles of the present invention. The horizontal member 11 may consist of a bracket or a vertical guide for the lift, instead of a transverse support, for example supporting a portion of a wing reinforcement such as a thick plank. In principle, the pipe part 15 can be omitted and replaced by another member.

Claims (1)

In the apparatus for coupling the vertical member and the horizontal member, which are the unit members of the scaffold, to the vertical member 3, a bowl-shaped member formed of a concave inner wall 6 that forms a constant space 4 from the wall at regular intervals ( 2), a hook-type member 9, which is located at one end of the horizontal member 11 and fitted into the space 4 of the bowl-shaped member 2, has a recessed portion formed in the longitudinal center thereof, and has clamping surfaces 20, 21. And a first clamping member 14 which is movable forward and backward, and a second clamping member 22 that wedges therefrom, and engages with the bowl-shaped member 2 in the space 4 by the wedge action. The hooked member 9 is supported against the inner wall 6 and the clamping surfaces 20 and 21 of the first clamping member 14 are supported against the wall of the vertical member 3 so that the horizontal member 11 is supported. Unit unit coupling device for a scaffold, characterized in that the support is fixed to the vertical member (3).

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