JP2015175178A - Connection device for scaffold boards - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for connecting scaffold boards in the lengthwise direction.SOLUTION: A connection device is inserted into and locked on a locking hole 10 of a connection object member 3 by advancing a locking pin 6 of a connection member 2 in mutual ones of a plurality of scaffold boards, and is constituted so that the locking pin 6 is energized in the advancing direction by a spring 13 in a state of regulating an attitude of a shaft part 14 along the predetermined axis X by regulation shaft support means, and is made tiltable in a predetermined direction to the predetermined axis X by tilt guiding means 25 when releasing regulation by retreating against the spring 13, and is held by locking a tip part of the locking pin 6 on retreat holding means 26 when energized in the advancing direction by the spring 13 in a state of tilting in the predetermined direction.

Description

The present invention is an apparatus for connecting long scaffold plates in the longitudinal direction, for example, to form a worker's passage in a construction site such as tunnel excavation work by a shield method, construction work or civil engineering work. The present invention relates to a scaffold plate connecting device to be used.

Conventionally, in order to connect a long scaffold plate in the longitudinal direction, a connecting member and a connected member are provided at both ends of the scaffold plate, and the connecting member and the connected member are connected to each other between the plurality of scaffold plates laid. Devices have been proposed that are detachably fixed by fixing means such as bolts.

JP 2000-336924 A Registered Utility Model No. 3027688

In order to form a long working path with a large number of scaffolding plates, it is necessary to connect the scaffolding plates at a number of locations. In addition, in order to disassemble and remove the scaffolding board after the purpose has been achieved due to the completion of construction, etc., it is necessary to release the connection of the scaffolding board at a number of locations. And when providing the connection apparatus which connects such a scaffold plate so that attachment or detachment is possible, it becomes important to comprise so that a connection operation | work and a separation operation | work can be performed easily and easily. Further, in the connected state, it is necessary to obtain a firm connection structure, and in the case of a tunnel or the like, it is necessary to form a passage along a curve.

In this regard, the conventionally proposed scaffold plate connecting apparatus does not sufficiently meet the above-mentioned needs and has many unsolved problems.

The present invention provides a connecting device for a scaffolding plate that can meet the above-mentioned needs, and the means for configuring the connecting device is a connecting wall extending in one longitudinal end of the scaffolding plate in the longitudinal direction. A locking pin that can be moved back and forth in a direction intersecting the frame is provided, a locking hole is provided in the connected wall extending to the other end portion, and the locking pin is advanced by advancing the locking pin between the plurality of scaffolding plates. Scaffolding plate coupling device configured to insert and lock the leading end portion of the locking pin into the locking hole, and retract the locking pin to retract the distal end portion of the locking pin from the locking hole. The locking pin is held by a bracket and urged in a forward direction by a spring, and the bracket regulates the position of the locking pin so as to follow a predetermined axis toward the locking hole. Can move forward and backward Restriction shaft support means for holding, and tilt guide means for allowing the lock pin to tilt in a predetermined direction with respect to the predetermined axis when the lock is released by retracting the lock pin against the spring. And is provided with a backward holding means for detachably locking the tip of the locking pin biased in the forward direction by the spring in the tilted state.

In a preferred embodiment of the present invention, a connecting member having an upper surface plate and a side plate is fixed to one end portion in the longitudinal direction of the scaffold plate, the bracket is provided below the upper surface plate, and the connection is made by the side plate. A wall is formed, and an operation portion is provided at a tail end portion of the locking pin held by the bracket so as to be movable forward and backward, and an operation window facing the operation portion is opened on the upper surface plate.

In this case, the bracket is provided with a first wall and a second wall that are spaced apart from each other in the axial direction of the locking pin, and the first wall is disposed to face the inner side of the connection wall, and An extension wall facing the first wall and the connecting wall is provided, and a shaft support hole through which the shaft portion of the locking pin is inserted is provided in the second wall, and an end portion of the extension wall is locked The regulating shaft supporting means is configured by facing the shaft portion of the pin, and the tilt guide means is configured by forming a long hole through which the shaft portion of the locking pin is inserted in the first wall, When the distal end of the stop pin is retracted from the distal end of the extension wall and escapes, the elongated hole guides the tilting direction of the locking pin, and the retracting holding means is configured by the inner surface of the extension wall. The tip of the locking pin that is biased forward by the spring in the tilted state is locked. It is preferable to make up to so that.

Furthermore, in order to facilitate the connection work, a connecting member provided with the connecting wall and a connected member provided with the connected wall are fixed to both ends in the longitudinal direction of the scaffold plate, It is preferable to constitute a fitting means that allows the connected walls to be freely fitted from above and below.

In order to form a path along the curve by the connected scaffolding plate, a space is formed between the mutually connected connecting wall and the connected wall, and the locking hole of the connected wall is used as the scaffolding plate. It is preferable to form by a long hole extending in the longitudinal direction.

According to the first aspect of the present invention, when connecting the connecting member 2 and the connected member 3 between the adjacent scaffolding plates 1, 1, the locking pin 6 is retracted and held in advance. Since it can be held by the means 26, it is not necessary for the operator to hold the locking pin 6 with a fingertip or the like, and it is easy to perform a preparatory work for connecting the connecting wall 5a and the connected wall 9a to each other. It can be carried out. Then, the locking pin 6 held back in a state where it can be connected is simply pushed and removed from the back holding means 26 and immediately takes a posture along the predetermined axis X by the regulating shaft support means 22. Since it is held and moved forward by the spring 13, the tip of the locking pin 6 can be accurately inserted into the locking hole 10 of the connected wall 9a with a simple and quick operation, enabling a quick connection operation. To.

Further, when separating the connected member 2 and the connected member 3 from each other, the locking pin 6 may be retracted and tilted and held by the retracting holding means 26. Since the pin 6 is held in a state of being released from the locking hole 10 and released from the connection, it is not necessary for the operator to hold the locking pin 6 with a fingertip or the like. The connecting member 3 can be separated.

According to the second aspect of the present invention, the operation of retreating and tilting the locking pin 6 is performed by inserting the operator's fingertip from the operation window 24 provided on the upper surface plate 4 of the connecting member 2, and the operation unit 15. Can be easily and easily performed by pulling down the spring 13 against the spring 13 and pushing the operating portion 15 downward.

According to the present invention described in claim 3, it is possible to realize the connecting device as described in claim 1 with a simple structure and to provide a structurally robust connecting device.

According to the fourth aspect of the present invention, the connecting member 2 and the connected member 3 constitute the fitting means 11 that allows the connecting wall 5a and the connected wall 9a to be fitted together from above and below. Therefore, at the time of connection, the connecting member 2 of the scaffold plate 1 to be connected faces the connected member 3 of the scaffold plate 1 laid on the ground or the like from above and is lowered to be fitted to the connected member 3. It is possible to perform the connecting operation easily. Further, when releasing the connection, among the many scaffolding plates 1 arranged in the longitudinal direction, the coupling device for the scaffolding plate 1 laid at a desired intermediate position can be disconnected and lifted to be separated.

According to the fifth aspect of the present invention, in the connected state, the separation space S is formed between the connecting wall 5a and the connected wall 9a, and the scaffold plate 1 is formed by the locking hole 10 through which the locking pin 6 is inserted. Since the elongated holes extending in the longitudinal direction are formed, it is possible to refract the scaffolding plates 1 arranged in a connected state, and to suitably form a curved path at a tunnel excavation work site or the like. Can do.

It is a perspective view which shows the scaffold board provided with the connection apparatus of this invention. It is a perspective view which shows the connection member and to-be-connected member by which the some scaffold board was made to oppose each other. It is a perspective view which shows the connection member and to-be-connected member which were mutually connected of the several scaffold board. It is a top view which shows the scaffold board which formed the curved channel | path in the state connected with the connection apparatus. It is a perspective view which shows a connection member, a bracket, and a locking pin in an exploded state. It is a cross-sectional view which shows the state by which the locking pin of the connection member was arrange | positioned along the predetermined axis. It is the sectional view on the AA line of FIG. It is a cross-sectional view which shows the state by which the locking pin of the connecting member was tilted and held in the retracted state. It is BB sectional drawing of FIG. 8, and is sectional drawing which shows the state which made the connection member and the to-be-connected member oppose. It is sectional drawing which shows the effect | action which connects a connection member and a to-be-connected member by a connection apparatus, and operates the locking pin in the connection direction from the state hold | maintained by tilting. It is sectional drawing which shows the state which connected the connection member and the to-be-connected member with the latching pin. It is a cross-sectional view which shows the connection member and the to-be-connected member connected with the connection apparatus. It is sectional drawing which shows another embodiment of the backward holding | maintenance means in the coupling device of this invention. It is sectional drawing which shows another embodiment of the fitting means in the coupling device of this invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

(Overall configuration)
As shown in FIGS. 1 to 3, the scaffold plate 1 has a connecting member 2 fixed at one end in the longitudinal direction and a connected member 3 fixed at the other end.

The connecting member 2 includes a top plate 4 and side plates 5 and 5 suspended from both side edges of the top plate 4 by bending a metal plate, and is formed in a U-shaped cross section that opens downward. The side wall 5 constitutes a connection wall 5a, and a connection operation mechanism 7 including a locking pin 6 that can be moved back and forth in the direction intersecting the longitudinal direction of the scaffolding plate 1 is provided below the upper surface plate 4.

The connected member 3 includes a bottom plate 8 and side plates 9 and 9 erected from both side edges of the bottom plate 8 by bending a metal plate, and is formed in a U-shaped cross section that opens upward. The side walls 9, 9 constitute a coupled wall 9 a, and the coupled wall 9 a is provided with a locking hole 10 formed by a long hole extending in the longitudinal direction of the scaffold plate 1.

Accordingly, the connecting member 2 and the connected member 3 formed in a U-shaped cross-section that opens up and down are formed in an opening shape so as to face each other in the vertical direction, thereby connecting the connecting wall 5a and the connected wall 9a. The fitting means 11 which can be fitted from above and below is configured.

As a result, when connecting, as shown in FIG. 2, the connecting member 2 of the scaffold plate 1 to be connected faces the connected member 3 of the scaffold plate 1 laid on the ground or the like, and is lowered. Thus, the connecting work can be performed by fitting to the connected member 3, thereby facilitating the work.

In dismantling, as shown in FIG. 4, it is possible not only to disassemble a large number of scaffolding plates 1 arranged in the longitudinal direction in order from the end, but also for the scaffolding plate 1 laid at a desired intermediate position. By releasing the connection device and lifting the connection device, it is possible to separate the rows of scaffolding plates in the middle, so that the disassembly work is facilitated.

Moreover, since separation in the middle is possible in this way, it becomes easy not only to dismantle, but also to move the separated scaffold rows and change the position of the working path.

However, in this invention, the fitting means 11 is not necessarily limited to the structure fitted from the upper and lower sides, For example, you may employ | adopt the structure fitted from an axial direction like a plug and a socket.

At the time of the fitting, the locking pin 6 of the connecting member 2 is retracted and then moved forward, and inserted into the locking hole 10 of the connected member 3, thereby connecting the connecting member 2 and the connected member as shown in FIG. 3 are firmly connected to each other.

In the connected state, a spacing space S (see FIG. 11) described later is formed between the connecting wall 5a and the connected wall 9a, and the locking hole 10 through which the locking pin 6 is inserted is the length of the scaffold plate 1. Since the elongated holes extending in the direction are formed, as shown in FIGS. 4 and 12, the scaffold plates 1 arranged in a mutually connected state are connected to each other so as to be curved at a desired radius R. And the coupled member 3 can be refracted to each other, and a path that bends at a tunnel excavation work site or the like can be suitably formed.

(Structure of the coupling operation mechanism)
As shown in FIGS. 5, 6, and 7, the connection operation mechanism 7 holds a pair of locking pins 6, 6 bent in a U-shape, and the locking pins 6 movably forward and backward. A bracket 12 and a spring 13 for urging each locking pin 6 in the forward direction are provided.

The locking pin 6 includes a pair of shaft portions 14, 14 extending in parallel and an operation portion 15 at the tail end portion connecting the shaft portions 14, 14, and a spring 13 is extrapolated to the shaft portion 14. The one end portion of the spring 13 is fixed to the shaft portion 14 by a locking means 13a such as a pin or a retaining ring.

The bracket 12 is formed by bending a metal plate into an U-shaped cross section that opens upward, and a first wall 16 and a second wall 17 that form a vertical wall surface are arranged in parallel. An extension wall 18 is formed by folding the edge part outward and suspending, and a horizontal mounting seat 19 is provided on the upper part of the first wall 16 and the second wall 17.

The second wall 17 is formed with shaft support holes 20 and 20 through which the shaft portions 14 and 14 of the locking pin 6 are held, and the first wall 16 is provided with the shaft portions 14 and 14. Long holes 21 and 21 extending in the up-down direction are inserted so as to be tiltable.

Therefore, as shown in FIGS. 6 and 7, the shaft portions 14, 14 of the locking pin 6 are inserted from the tip portion into the shaft support hole 20 and the long hole 21, and the spring 13 is connected to the first wall 16 and the second wall 21. It is interposed between the walls 17. In this state, the shaft portion 14 of the locking pin 6 faces the end portion 18a of the extension wall 18, and the posture of the shaft portion 14 is regulated so as to be along a predetermined axis X orthogonal to the connecting wall 5a. Yes. That is, the shaft portion 14 intersects with the tip 18a of the extension wall 18 in a state of being in contact with or close to the end wall 18a, thereby forming a hole portion in a lower portion of the long hole 21 arranged concentrically with the shaft support hole 20. It is held and prevented from tilting up and down. As a result, the distal end 18a of the extension wall 18 constitutes the restricting shaft support means 22 that holds the posture of the shaft portion 14 along the predetermined axis X. Therefore, the shaft portion 14 advances and retreats only along the predetermined axis X. It is supported freely and is urged in the forward direction by a spring 13.

In the case of the illustrated example, the spring 13 is constituted by a coil spring wound in a conical shape, and the small-diameter coil portion is locked to the locking means 13 a and the large-diameter coil portion is attached to the inner surface of the second wall 17. It is in elastic contact. Therefore, normally, the locking means 13a is brought into contact with the inner surface of the first wall 16 with the spring 13 compressed, and when the locking pin 6 is moved in the backward direction together with the locking means 13a, Compressed.

As shown in FIGS. 6 and 7, the bracket 12 is arranged so that the shaft portion 14 of the locking pin 6 is orthogonal to the side plate 5 (connection wall 5 a) of the connection member 2, and the mounting seat 19 is moved upward. It is fixed to the lower surface of the face plate 4 with a fixing tool such as a rivet. At this time, the first wall 16 faces the inner side of the connection wall 5a, and the extension wall 18 faces the first wall 16 and the connection wall 5a. Thereby, between the connection wall 5a and the extension wall 18, the insertion space P which inserts the to-be-connected wall 9a of the to-be-connected member 2 is formed.

In the case of the illustrated embodiment, the connecting wall 5 a of the connecting member 2 is provided with an insertion hole 23 through which the tip portions of the shaft portions 14, 14 of the locking pin 6 advanced by the spring 13 are inserted. Further, on the upper surface plate 4, operation windows 24 and 24 facing the operation portions 15 and 15 of the locking pins 6 and 6 are opened.

(Operation of the coupling operation mechanism)
As described above, the locking pin 6 is inserted into the shaft support hole 20 while being held, and can be moved forward and backward only along the predetermined axis X by the control shaft support means 22 formed by the tip 18a of the extension wall 18. Although supported, as shown in FIGS. 8 and 9, when the locking pin 6 is moved in the backward direction against the spring 13, the distal end portion of the shaft portion 14 is moved inward from the distal end 18 a of the extension wall 18. The restriction is released by moving and disengaging.

By releasing the restriction, the shaft portion 14 is tiltable so that the tip portion is directed upward along the long hole 21 with the portion inserted and held in the shaft support hole 20 as a fulcrum. That is, the long hole 21 constitutes a tilt guide means 25 that allows the shaft portion 14 of the locking pin 6 to tilt in a predetermined direction with respect to the predetermined axis X.

Therefore, as shown by an arrow in FIG. 9, when the locking pin 6 is retreated and tilted, and the locking pin 6 is urged in the forward direction by the spring 13, the tip portion of the shaft portion 14 is extended. It is elastically brought into contact with the inner side surface 18b of the wall 18 and is locked in a state where the tilting posture is maintained. That is, the inner surface 18b of the extension wall 18 constitutes the backward holding means 26 that detachably locks the locking pin 6 in the retracted and tilted state.

For the operation of retracting and tilting the locking pin 6 as described above, the operator's fingertip is inserted from the operation window 24 provided on the upper surface plate 4 of the connecting member 2, and the operation portion 15 is pulled against the spring 13. At the same time, the operation unit 15 can be pushed easily and easily.

In the case of the illustrated embodiment, the coupling operation mechanism 7 is provided with a pair of units formed by the locking pin 6 and the spring 13 and the bracket 12 symmetrically, so that the operator configures the pair of units with one hand. By grasping the operation portions 15 and 15 of the locking pins 6 and 6, the left and right locking pins 6 and 6 can be simultaneously retracted and tilted, and the operation is easy.

In order to connect the connecting member 2 and the member 3 to be connected, when the locking pin 6 is returned to the posture along the predetermined axis X, the operation unit 15 may be pulled up with the fingertip inserted from the operation window 24. As soon as the locking pin 6 is detached from the inner side surface 18b (retracting holding means 26) of the extension wall 18, the locking pin 6 slides and crosses the tip 18a (regulation shaft support means 22) of the extension wall 18 so that the predetermined axis line is reached. The posture along X is maintained and advanced by the spring 13 so that the tip end of the shaft portion 14 enters the insertion hole 23 of the connecting wall 5a.

(Linkage method of scaffolding board)
When connecting the connecting members 2 of the scaffolding plates 1 and 1 to be connected and the connected member 3, as shown in FIG. 9, the locking pin 6 is retracted and tilted through the operation portion 15 to hold the retracted member. As shown in FIG. 10, when the connecting member 2 is made to face above the connected member 3 and lowered as the state held by the means 26, the insertion space P formed inside the connecting wall 5a of the connecting member 2 is formed. The upper end of the connected wall 9a is made to enter, the connecting member 2 and the connected member 3 are fitted to each other, and the insertion hole 23 of the connecting wall 5a and the locking hole 23 of the connected wall 9a are matched in a communicating state. To do.

In this state, as shown by an arrow in FIG. 10, when the distal end portion of the shaft portion 14 is escaped from the backward holding means 26 by pushing the locking pin 6 via the operation portion 15, the locking pin 6 is As soon as the posture is regulated along the predetermined axis X by the regulating shaft support means 22, it is advanced by the spring 13, and as shown in FIG. 11, the shaft portion 14 is connected to the locking hole 10 of the connected wall 9 a. The connection between the connecting member 2 and the connected member 3 is completed through the insertion hole 23 of the connecting wall 5a.

The connecting member 2 and the connected member 3 which are connected to each other in a fitted state form a separation space S as shown in FIG. 11 between the connecting wall 5a and the connected wall 9a. Since a long hole extending in the longitudinal direction of the scaffolding plate 1 is formed by the locking hole 10 inserted through the shaft portion 14 of the pin 6, the connecting member 2 and the connected member 3 are bent sideways as shown in FIG. Can be made. As a result, as shown in FIG. 4, a plurality of scaffolding plates 1 arranged in a connected state are refracted at the connecting portion, thereby suitably forming a bent passage required in a tunnel excavation work site or the like. It is possible.

Thus, when connecting the connecting member 2 and the connected member 3 of the adjacent scaffolding plates 1 and 1, the locking pin 6 can be held in the retracted state by the retracting holding means 26 in advance. It is not necessary for a person to hold the locking pin 6 with a fingertip or the like, and preparation work for enabling the connecting wall 5a and the connected wall 9a to be connected to each other can be easily performed. Then, the locking pin 6 held back in a state where it can be connected is simply pushed and removed from the back holding means 26 and immediately takes a posture along the predetermined axis X by the regulating shaft support means 22. Since it is held and moved forward by the spring 13, the tip of the locking pin 6 can be accurately inserted into the locking hole 10 of the connected wall 9a with a simple and quick operation, enabling a quick connection operation. To.

(How to disconnect the scaffolding board)
When separating the connected member 2 and the connected member 3 in the connected state, a method opposite to the above may be performed. That is, the locking pin 6 may be retracted and tilted via the operation unit 15 and held by the retracting holding means 26. By such a simple operation, the locking pin 6 is held in a state where the connection is released by being removed from the locking hole 10, so that it is necessary for the operator to hold the locking pin 6 with a fingertip or the like In addition, the connecting member 2 and the connected member 3 can be separated in the vertical direction simply and easily.

(Another embodiment of the backward holding means)
FIG. 13 shows another embodiment of the retracting holding means 26, with respect to the shaft portion 14 of the locking pin 6 inserted in a holding state in the shaft support hole 20 provided in the second wall 17 of the bracket 12. Thus, the extension wall 18 is provided so as to face from below, the restriction shaft support means 22 is constituted by the tip 18 a of the extension wall 18, and the backward holding means 26 is constituted by the inner side surface 18 b of the extension wall 18. . Therefore, as shown by the chain line in the figure, the locking pin 6 is a first wall disposed concentrically with the shaft support hole 20 of the second wall 17 in a state where the posture of the shaft portion 14 is along the predetermined axis X. It is held in the hole portion of the upper portion of the 16 long holes 21 and is prevented from tilting in the vertical direction by the restriction shaft support means 22.

As shown by a solid line in FIG. 13, when the locking pin 6 is moved in the backward direction against the spring 13, the restriction by the restriction shaft support means 22 is released, and the tilt guide means constituted by the long hole 21. 25 can be tilted. Therefore, when the tip end portion of the locking pin 6 is tilted downward, the locking pin 6 is locked in a state where the tilting posture is held by the backward holding means 26.

According to this embodiment, when the locking pin 6 is withdrawn from the backward holding means 26, the operator only has to push the operation portion 15 downward with a fingertip or the like inserted from the operation window 24. Workability is improved.

(Another embodiment of the fitting means)
FIG. 14 shows another embodiment of the fitting means 11. The fitting means 11 connects the connected walls 9 a, 9 a of the connected member 3 to the outer surface of the connecting walls 5 a, 5 a of the connecting member 2. It is configured to fit along. Other configurations are the same as those of the above-described embodiment.

(Other embodiments)
Of course, the present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, the single support bracket 12 includes the shaft support hole 20, the long hole 21 constituting the tilt guide means 25, and the restriction shaft support. Although the embodiment in which the extension wall 18 constituting the means 22 and the backward holding means 26 is provided has been shown, these technical configurations may be provided in separate members. In addition, various embodiments and design changes are possible.

DESCRIPTION OF SYMBOLS 1 Scaffold plate 2 Connecting member 3 Connected material 4 Upper surface plate 5 Side surface plate 5a Connecting wall 6 Locking pin 7 Connection operating mechanism 8 Lower surface plate 9 Side surface plate 9a Connected wall 10 Locking hole 11 Fitting means 12 Bracket 13 Spring 13a Locking means 14 Shaft portion 15 Operation portion 16 First wall 17 Second wall 18 Extension wall 18a Tip 18b Inner side surface 19 Mounting seat 20 Shaft support hole 21 Long hole 22 Restriction shaft support means 23 Insertion hole 24 Operation window 25 Tilt guide means 26 Backward holding means

Claims (5)

The connecting wall (5a) extending to one end in the longitudinal direction of the scaffolding plate is provided with a locking pin (6) that can be advanced and retracted in a direction intersecting the longitudinal direction, and a connected wall extending to the other end ( 9a) is provided with a locking hole (10),
By advancing the locking pin (6) between the plurality of scaffolding plates, the tip of the locking pin is inserted and locked into the locking hole (10), and the locking pin is moved backward. In the coupling device of the scaffolding plate configured to detach the tip of the locking pin from the locking hole (10),
The locking pin (6) is held in the bracket (12) and is urged in the forward direction by the spring (13),
The bracket (12) is a regulating shaft support means (22) that supports the locking pin (6) so as to be able to advance and retreat in a state where the posture of the locking pin (6) is regulated along a predetermined axis (X) toward the locking hole (10). ) And the tilting guide that allows the locking pin to tilt in a predetermined direction with respect to the predetermined axis (X) when the restriction is released by retracting the locking pin against the spring (13). Means (25),
Scaffolding comprising retraction holding means (26) for releasably locking the tip of the locking pin (6) biased in the forward direction by the spring (13) in the tilted state Board coupling device. A connecting member (2) having an upper surface plate (4) and a side surface plate (5) is fixed to one end portion in the longitudinal direction of the scaffold plate, and the bracket (12) is provided below the upper surface plate (4). The side wall (4) forms the connecting wall (5a),
An operation portion (15) is provided at the tail end portion of the locking pin (6) held by the bracket so as to be able to advance and retreat, and an operation window (24) facing the operation portion (15) on the upper surface plate (4). The scaffolding plate connecting device according to claim 1, wherein the scaffolding plate connecting device is provided. The bracket (12) is provided with a first wall (16) and a second wall (17) that are spaced apart in the axial direction of the locking pin, and the first wall (16) is connected to the connecting wall ( 5a) is disposed opposite to the inside, and has an extension wall (18) facing the first wall (16) and the connecting wall (5a),
The second wall (17) is provided with a shaft support hole (20) through which the shaft portion (14) of the locking pin is inserted, and the end portion (18a) of the extension wall (18) is connected to the shaft of the locking pin. The regulating shaft support means (22) is configured by facing the portion (14),
The tilt guide means (25) is formed by forming a long hole (21) through which the shaft portion (14) of the locking pin is inserted in the first wall (16), and the tip end portion of the locking pin is When retracted from the end (18a) of the extension wall (18) and escaped, the elongated hole (21) is configured to guide the tilting direction of the locking pin (6),
The retracting means (26) is constituted by the inner side surface (18b) of the extension wall (18), and the tip end portion of the locking pin (6) biased in the forward direction by the spring (13) in a tilted state. It is comprised so that it may latch, The coupling device of the scaffold board | plate of Claim 1 or 2 characterized by the above-mentioned. A connecting member (2) provided with the connecting wall (5a) and a connected member (3) provided with the connected wall (9a) are fixed to both ends in the longitudinal direction of the scaffold plate, and the connecting wall ( 5. A scaffolding plate coupling device according to claim 1, 2 or 3, characterized in that it comprises fitting means (11) for allowing 5a) and the connected wall (9a) to be fitted to each other from above and below. . A spacing space (S) is formed between the connecting wall (5a) and the connected wall (9a) fitted to each other, and the locking hole (10) of the connected wall (9a) is formed in the longitudinal direction of the scaffold plate. The scaffolding plate coupling device according to claim 4, wherein the scaffolding plate coupling device is formed by a long hole extending in a vertical direction.

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