JP5255598B2 - Attachment device for additional function device on work table and work table with additional function device attached by the attachment device - Google Patents

Description

The present invention relates to a workbench used for high-altitude work at a construction site or the like, for mounting an additional function device such as an outrigger device for preventing the workbench from overturning or a handrail device for preventing a worker from falling. An attachment device is provided, and further, a work table to which an additional function device is attached by such an attachment device is provided.

Conventionally, a technique for attaching an outrigger device to a top plate of a work table has been proposed in order to prevent the work table from toppling over.

Generally, the workbench is provided with an inward groove on the lower side of the side edge of the top plate, and the groove includes a side wall suspended from a side edge of the top plate wall on which an operator is mounted, It is comprised by the rib-shaped board wall extended inward from the lower end of the side wall. Therefore, an attachment device for attaching an additional function device such as an outrigger device to the side edge portion of the top plate is attached using the groove portion.

The mounting device proposed by Patent Document 1 described later is composed of a first fixing bracket fixed in contact with the side wall of the top plate and a second fixing bracket to which the additional function device is fixed. The first fixing bracket includes a vertical plate portion and a horizontal plate portion, and the vertical plate portion is fixed to the second fixing bracket with a pin and a nut. A latching hole is formed in the side wall of the top plate, and when attaching the mounting device to the side edge of the top plate, the vertical plate portion of the first fixing bracket is brought into contact with the side wall and the pin is inserted into the latching hole. In this state, the locking member provided at the tip of the horizontal plate portion is hooked on the inner end portion of the rib-like plate wall of the top plate. The lock member has a pin urged in a protruding direction by a spring, and after the pin is retracted, the horizontal plate portion is advanced along the lower surface of the rib-like plate wall of the top plate, and then the spring is moved. By hooking the pin, the inner end of the rib-like plate wall is hooked. As a result, the mounting device is fixedly supported by the fitting of the pin and the latching hole, and is latched and latched by the locking means.

Japanese Patent No. 4405314

Since the above prior art is configured to fix and support the mounting device by fitting the pin and the latching hole, it is essential to provide the latching hole on the side wall of the top plate. Therefore, it cannot be mounted on a workbench that does not have such a retaining hole. In other words, since general-purpose work benches include those that do not have holes in the side walls, in order to mount the mounting device, it is necessary to drill holes, and there is a problem of lack of versatility. is there.

By the way, in order to attach and fix the attachment device of the additional function device to the side edge portion of the top plate using the groove portion of the top plate, for example, the main bracket to which the additional function device is fixed is attached to the side wall of the top plate. It is considered that the auxiliary metal fitting may be attached from the inside of the rib-like plate wall of the top plate, and the two metal fittings may be connected and fixed together.

However, for example, when the main metal fitting and the sub-metal fitting are formed separately and both the metal fittings are connected and fixed with bolts and nuts when attaching the metal fittings, not only the installation and removal work is complicated, but also the separation from the main metal fittings. There is a problem such as missing sub metal fittings.

For this reason, it is preferable that the main metal fitting and the sub metal fitting are connected to each other so that they cannot be separated from each other. In that case, when the main metal fitting is attached to the side wall of the top plate from the outside, the sub metal fitting is attached to the side wall or rib. It is necessary to make it enter into a predetermined inner position without interfering with the plate wall, and there is a problem to be solved in this respect.

The present invention provides an attachment device that can attach and detach an additional function device to and from a side edge of a general-purpose workbench with a simple and easy operation. The additional function device is detachably fixed to the side edge of the top plate, the top plate forms an inward groove on the lower side of the side edge, and the side wall is suspended from the top plate wall; In the configuration including a rib-like plate wall extending inwardly from the lower end of the side wall, the fixing bracket fixed to the additional function device includes a support portion attached to the outer surface of the side wall, and the plate wall from the support portion. A movable bracket is connected to the bracket via a coupling means, and the coupling means connects the movable bracket to the stationary bracket on the inner side and the lower side of the groove. The standby position and the groove portion above the standby position. The movable fitting is configured to be movable between an upward movement position and a locking position that enters the groove, and the movable fitting is removably locked to the groove when moved to the locking position. Locking means is provided, and lock means is provided between the movable metal fitting and the fixed metal fitting so that the movable metal fitting is immovably fixed in a state where the movable metal fitting is moved to the engagement position.

In a preferred embodiment of the present invention, the connecting means includes a guide path provided in one of the fixed bracket and the movable bracket, a shaft support hole provided in the other, and a state in which the shaft support hole is aligned with the guide path. The fixed bracket and the movable bracket are provided with a shaft member that rotatably supports each other, and the movable bracket is configured to be rotatable between the standby position and the upward movement position via the shaft member. By extending the guide path substantially parallel to the extending direction of the plate wall and allowing the shaft member to move along the guide path, the movable bracket is moved between the upward movement position and the locking position. It is configured to be movable.

The locking means is configured by a slit provided in the movable metal fitting, and is configured to fit the rib-like plate wall into the slit by moving the movable metal fitting from the upward movement position to the locking position.

In a preferred embodiment of the present invention, a guide path is provided on one of the fixed metal fitting and the movable metal fitting, and a shaft support hole and a lock hole are provided side by side on the other, and the shaft support hole and the guide path are aligned with each other. The shaft member is slidably inserted in the axial direction, a lock pin folded back at the tip of the shaft member is extended, and the lock hole matches the guide path in a state where the movable fitting is moved to the locking position. In addition, it is arranged so that the lock pin can be received. Therefore, in the case of this embodiment, the connecting member is configured by the guide path, the shaft support hole, and the shaft member, and the shaft member is released in a state where the lock pin is released by sliding the shaft member in the distal direction. The movable bracket is configured to be rotatable between the standby position and the upward movement position, and the shaft member is movable along the guide path, whereby the movable bracket is engaged with the upward movement position. It is configured to be movable between stop positions. Then, the lock means is constituted by the lock hole and the lock pin, and the shaft member is slid in the tail end direction in a state where the movable fitting is moved to the locking position, so that the lock pin is inserted into the lock hole. It is configured so as to be inserted in the guide path so as not to slide.

The shaft member is preferably elastically biased toward the tail end by a spring.

The additional function device can constitute, for example, an outrigger device that supports a work table on a grounding surface. In this case, the outrigger device includes a main leg fixed to the fixing bracket, an extendable leg extending from the main leg toward the ground surface, and a fixing means for fixing the extendable leg to the main leg in a predetermined extension state. It is preferable to provide.

In addition, the additional function device can constitute, for example, a fall prevention device that stands up from the side edge of the top plate of the work table.

ADVANTAGE OF THE INVENTION According to this invention, the attachment apparatus of the additional function apparatus in a work table is provided, or the work table which attached the additional function apparatus by the attachment apparatus is provided.

According to the present invention, it is not necessary to perform drilling or the like on the side wall of the top plate as in the prior art, and if it is a general-purpose workbench 1 having the top plate 2 in which the groove portion 9 is formed on the side edge portion, it is free. In addition, the additional function device 14 can be detachably attached, and the attachment device can be attached and removed easily and easily.

In this case, according to the second aspect of the present invention, the movable metal fitting 21 is turned upright with the shaft member 31 as a fulcrum from the standby position P1 to the upward movement position P2, and the shaft member 31 is moved along the guide path 29. Since the movable bracket 21 is moved from the upward movement position P2 to the locking position P3 by sliding, the movement of the movable bracket 21 from the standby position P1 through the upward movement position P2 to the locking position P3 is performed. Can be carried out by a complex series of operations that simultaneously rotate and slide, and there is an advantage that the attaching and detaching operations of the attachment device can be performed easily and quickly.

According to the third aspect of the present invention, since the locking means 28 is constituted by the slits 28a, the movable fitting 21 is securely and firmly attached to the rib-like plate wall 11 of the top plate 2 with a simple structure. Can be locked and fixed.

According to the fourth aspect of the present invention, the connecting member 22 that enables the movable bracket 21 to be moved from the standby position P1 to the locking position P3 is constituted by the shaft member 31, the guide path 29, and the shaft support hole 30. At the same time, since the lock means 32 is constituted by the lock pin 33 extending to the shaft member 31 and the lock hole 34 provided in parallel to the shaft support hole 30, one of the connecting means 22 and the lock means 32 is part of the other. The structure is also used, and the number of parts is small, the structure is simple, and it can be provided at low cost.

At this time, according to the present invention as set forth in claim 5, since the spring 35 for elastically biasing the shaft member 31 in the tail end direction is provided, the movable bracket 21 is moved to the locking position P3, When the lock pin 33 faces the lock hole 34, the shaft member 31 is slid in the tail end direction by the spring 35, thereby automatically inserting and locking the lock pin 33 into the lock hole 34 and the guide path 29. There is. When the shaft member 31 is slid in the distal direction against the spring 35 to release the lock, and the movable bracket 21 is moved from the standby position P1 to the upward movement position P2, the lock pin 33 of the movable bracket 21 is moved. By elastically contacting the outer surface of the connecting portion 26, it functions as a stopper and prevents the shaft member 31 from sliding in the tail end direction by the spring 35, so that the work when moving the movable fitting 21 is facilitated.

Incidentally, when the additional function device 14 is constituted by the outrigger device 14a, according to the present invention of claim 6, since it is a telescopic structure comprising a main leg and an extensible leg, a relatively large or small work Even with various work tables having different heights such as a table, the same outrigger device 14a can always exhibit the additional function of preventing the fall.

It is a perspective view which shows the work table which attached the additional function apparatus with the attachment apparatus which concerns on one Embodiment of this invention. Examples of work bench variations are shown, (A) is a side view showing a state where the additional function device is attached to a relatively large work table, and (B) is a view showing the additional function device on a relatively small work table. It is a side view which shows the state which attached. It is a side view which shows the principal part of 1 embodiment of this invention by a partial cross section. It is a perspective view shown in the state which decomposed | disassembled the top plate, the additional function apparatus, and the attachment apparatus regarding 1 embodiment of this invention. With respect to the operation of the mounting device, a state in which the movable metal fitting is positioned at the standby position is shown, (A) is a perspective view, and (B) is a longitudinal sectional view. Regarding the operation of the mounting device, a state in which the movable metal fitting is moved to the upward movement position is shown, (A) is a perspective view, and (B) is a longitudinal sectional view. Regarding the operation of the mounting device, the movable metal fitting is moved to the locking position, (A) is a perspective view, and (B) is a longitudinal sectional view. With respect to the operation of the mounting device, a state in which the movable metal fitting is locked so as to be immovable by the locking means at the locking position is shown, (A) is a perspective view, and (B) is a cross-sectional view. The operation of the mounting device is described in principle, (A) is a longitudinal sectional view showing a state where the movable metal fitting is positioned at the standby position, and (B) shows a state where the movable metal fitting is moved to the upward movement position. A longitudinal sectional view, (C) is a longitudinal sectional view showing a state in which the movable metal fitting is moved to the locking position.

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

The workbench of the present invention is a general-purpose workbench widely including a stepladder and other workbench used for high-altitude work at a construction site or the like, and therefore, its shape and size are not particularly limited. FIG. 1 shows one embodiment. In the case of the illustrated embodiment, the work table 1 is provided with legs 3 and 3 that can be folded at both ends of the top plate 2 (in the case of the figure, both ends in the longitudinal direction of the substantially rectangular top plate 2). Each leg portion 3 is configured in a ladder shape in which a step 5 is installed on a pair of leg main bodies 4 and 4, and an extension leg portion 6 is provided on each leg main body 4 to be extendable and contractible. The extension leg 6 is fixed to the leg main body 4 by the lock mechanism 7 in a state where the extension leg 6 is extended to a predetermined length as indicated by a chain line in the drawing, thereby supporting the top plate 2 at an arbitrary height.

As shown in FIGS. 3 and 4, the top plate 2 is located under the side edges of the top plate wall 8 on which an operator is boarded (in the example shown, both side edges extending in the longitudinal direction of the substantially rectangular top plate 2). An inward groove portion 9 is formed on the side, and includes a side wall 10 suspended from the top plate wall 8 and a rib-like plate wall 11 extending inward from the lower end of the side wall 10. A reinforcing rib 12 is provided on the lower surface of the top wall 8 so as to be separated from the groove 9.

The above-described configuration is known as a general-purpose workbench 1, and the present invention attaches and detaches the additional function device 14 to the side edge of the top plate 2 in such a known workbench 1 via the attachment device 13. It can be installed freely.

The additional function device 14 includes an outrigger device 14a that prevents the work table 1 from falling over as shown by a solid line in FIG. 1, a handrail device 14b that prevents an operator from falling from the top plate 2 as shown by a chain line, In addition, although it can select from the various apparatuses which give an added value to a worktable by attaching to the side edge part of the top plate 2, the outrigger apparatus 14a is demonstrated as an embodiment of the additional function apparatus 14 below.

As shown in FIGS. 1 and 3, the outrigger device 14 a is configured to support the top plate 2 of the work table 1 on the grounding surface, and has a main leg 15 fixed to the mounting device 13, and the main leg 15. And a telescopic leg 16 extending from the ground to the ground surface and a fixing means 17 for fixing the telescopic leg 16 to the main leg 15 in a predetermined telescopic state. In the case of the illustrated example, the telescopic legs 16 are inserted so as to be movable back and forth in the longitudinal direction of the main leg 15, rack teeth 17 a are arranged on the telescopic legs 16, and claw means 17 b are provided on the main leg 15. The claw means 17b is configured to be releasably locked to the rack teeth 17a by the rotation of the operation lever 17c provided on the control lever 17c, whereby the fixing means 17 is configured. The grounding member 18 provided at the lower end of the telescopic leg 16 is preferably configured to be swingable by a pin 19.

As shown in FIG. 2, the outrigger device 14 a maintains a predetermined angle θ <b> 2 with the ground plane G in a state where the outrigger device 14 a is attached to the side edge of the top plate 2 by the attachment device 13. It is preferable that θ2 <θ1 with respect to the angle θ1 with respect to the ground contact surface G of the extended leg portion 6 extending in a divergent shape (θ2 = 75 degrees and θ1 = 85 degrees in the illustrated example).

As described above, the attachment device 13 is configured to be attached using the groove portion 9 of the top plate 2 of the general-purpose work table 1, and therefore, the relatively large work table 1a shown in FIG. It can be freely attached to a relatively small work table such as a relatively small work table 1b shown in FIG. That is, since the work tables 1a and 1b are each provided with the above-described groove portion 9 at the side edge portion of the top plate 2, by using the groove portion 9, the attachment device 13 can be detachably fixed so that the outrigger can be attached. A device 14a is attached. At this time, the large workbench 1a has a long leg 3, and the small workbench 1b has a short leg 3. However, the outrigger device 14a attached to any workbench can be extended and retracted by The grounding member 18 can be suitably grounded with respect to the grounding surface G. Further, as shown by a chain line in the figure, when the work table 1 is used with the legs 3 extended, the grounding member 18 is grounded to the grounding surface G by similarly extending and retracting the telescopic legs 16 of the outrigger device 14a. Thus, the outrigger device 14a prevents the workbench 1 from falling over.

As shown in FIG. 4, the attachment device 13 includes a fixed bracket 20 that is fixed to the additional function device 14, a movable bracket 21 that is separate from the fixed bracket 20, and a connection that connects the movable bracket 21 to the fixed bracket 20. Consists of means 22.

The fixing bracket 20 includes a support portion 23 and a bracket portion 24 extending horizontally from the lower side of the support portion 23, and the support portion 23 is located near the upper end of the main leg 15 of the additional function device 14 (outrigger device 14 a). It is fixed to the part. In the case of the illustrated example, the fixing bracket 20 forms bracket portions 24 and 24 that face each other by bending a metal plate into a substantially U shape, and a pair of support portions 23 and 23 that stand up from the bracket portions 24 and 24. The support portions 23 and 23 are superposed on a pair of plate-like walls 15a and 15a that protrude from the abdominal portion of the main leg 15 and extend in parallel with the longitudinal direction, and rivets or other fixing tools 25 (see FIG. 5). It is stuck. At this time, the edges of the support portions 23 and 23 are formed so as to be inclined at an angle θ with respect to the ground plane G, so that the additional function device 14 (outrigger device 14a) after the attachment has the predetermined angle θ2 described above. It is configured to hold. The opposite edges of the support portions 23, 23 constitute support edges 23 a, 23 a extending in the vertical direction so as to abut along the side wall 10 of the top plate 2, and the upper edges of the bracket portions 24, 24 are The support edges 24a, 24a extending in the horizontal direction so as to support along the lower surface of the rib-like plate wall 11 of the plate 2 are configured.

The movable metal fitting 21 includes a connecting portion 26 connected to the bracket portion 24 by the connecting means 22 and a locking portion 27 connected to the connecting portion 26. In the case of the illustrated example, the movable metal fitting 21 forms a pair of connecting portions 26 and 26 that hold both side surfaces of the bracket portions 24 and 24 by bending a metal plate into a substantially U shape. A pair of locking portions 27 and 27 are formed adjacent to each other, and a locking means 28 including a slit 28 a is provided between the adjacent connecting portion 26 and the locking portion 27.

The connecting means 22 connects the movable metal fitting 21 to the fixed metal fitting 20, and also includes a lower standby position P1 where the movable metal fitting 21 does not protrude above the bracket portion 24, and an upper movement position where the movable metal member 21 protrudes above the bracket portion 24. It is configured to be movable between P2 and a locking position P3 close to the support portion 23 of the fixing bracket 20 from the upward movement position P2.

In order to constitute such a connecting means 22, in the illustrated embodiment, a guide path 29 consisting of a long hole extending in a horizontal direction with a predetermined length L1 is formed in the bracket portions 24, 24 of the fixing bracket 20 so as to move the movable member. A shaft support hole 30 is formed in the connecting portions 26 and 26 of the metal fitting 21, and the shaft member 31 is inserted in a state where the shaft support holes 30 and 30 are aligned with the guide paths 29 and 29 as shown in FIG. Thus, the movable metal fitting 21 is pivotally supported so as to be rotatable and slidable with respect to the fixed metal fitting 20.

Further, there is provided a locking means 32 for fixing the movable fitting 21 so as not to move when the movable fitting 21 is moved to the locking position P3. In the case of the illustrated embodiment, the locking means 32 is configured by a lock pin 33 extending in a folded shape at the tip of the shaft member 31 and a lock hole 34 provided in the connecting portions 26 and 26 of the movable metal fitting 21. ing. At this time, the lock hole 34 is arranged in parallel with the shaft support hole 30 in a state of being separated in the extending direction of the slit 28a, and a distance L2 connecting the lock hole 34 and the outer edge of the shaft support hole 30 is the guide path. It is formed to be substantially equal to the length L1 of 29. Similarly, a distance L3 connecting the shaft member 31 extending in parallel and the outer edge of the lock pin 33 is formed to be substantially equal to the length L1 of the guide path 29.

In the illustrated embodiment, the shaft member 31 is provided with a spring 35 such as a coil spring, and in a state where the movable bracket 21 is pivotally supported by the fixed bracket 20, the shaft member 31 is elastically directed toward the tail end. It is energized. In the case of the illustrated example, a nut 36 is screwed to the threaded flange portion at the tail end of the shaft member 31, and the spring 35 is compressed between the connecting portion 26 of the movable metal fitting 21 and the nut 36, so that the shaft member 31 is tailed. It is configured so that the compressive force can be adjusted by urging and biasing the end in the end direction and screwing or unscrewing the nut 36.

When the attachment device 13 is attached to the groove 9 of the top plate 2, as shown in FIG. 5, the movable metal fitting 21 is held at the standby position P1. That is, the movable metal fitting 21 holds a posture rotated downward via the shaft member 31 so that the locking portion 27 does not protrude above the bracket portion 24 of the fixed metal fitting 20. The shaft member 31 is slid in the front end direction by compressing the spring 35, and the lock pin 33 is elastically contacted with the outer surface of the connecting portion 26, thereby locking the shaft member 31 in a non-slidable direction in the tail end direction. ing. In this state, the movable fitting 21 is pivotally supported by the shaft support hole 30 by the shaft member 31, and the shaft member 31 is slidable along the guide path 29.

Therefore, as shown in FIG. 5B, when the fixing tool 25 to which the additional function device 14 is fixed is attached to the side wall 10 of the top plate 2, the support edge 23a of the support portion 23 comes into contact with the side wall 10, and the movable bracket The bracket portion 24 enters the space below the rib-shaped plate wall 11 together with 21.

As shown in FIG. 6, with the bottom surface of the rib-shaped plate wall 11 of the top plate 2 supported by the contact edges 24a, 24a of the bracket portions 24, 24, the movable bracket 21 is illustrated with the shaft member 31 as a fulcrum. When the pivoting portion 27 is rotated in the standing direction as described above, the locking portion 27 moves to the upward movement position P2 protruding above the bracket portion 24. At this time, the shaft member 31 is positioned at the end portion (the left end portion in the drawing) of the guide path 29 toward the tip of the bracket portion 24, and the movable bracket 21 moved to the upward movement position P2 by the upright rotation is as follows. The engaging portion 27 is opposed to the groove portion 9, and the slit 28 a is opposed to the rib-shaped plate wall 11. In this state, the movable metal member 21 pivotally supported by the shaft member 31 is movable toward the support portion 23 as indicated by an arrow S along the guide path 29 extending in parallel with the rib-like plate wall 11.

Therefore, as shown in FIG. 7, the shaft member 31 is slid along the guide path 29 to the end portion on the opposite side of the guide path 29 (the end portion on the right side in the figure), and the movable bracket 21 is moved in the same direction (arrow S). When moving in the direction), the movable fitting 21 moves to the locking position P3. At this time, the rib-like plate wall 11 is fitted into the slit 28 a, whereby the movable metal fitting 21 is fixed to the groove portion 9.

With the movable bracket 21 moved to the locking position P3, the lock hole 34 matches the end of the guide path 29 (the end on the left side in the figure), so that when the tip of the lock pin 33 faces the lock hole 34, As shown in FIG. 8, the shaft member 31 is automatically slid in the tail end direction by the spring 35, and the lock pin 33 is inserted into the lock hole 34 and the guide path 29. As described above, the length L1 of the guide path 29, the distance L2 connecting the lock hole 34 and the outer edge of the shaft support hole 30, and the distance L3 connecting the shaft member 31 and the outer edge of the lock pin 33 are L1 = L2. = L3, the shaft member 31 is inserted into the shaft support hole 30 and the end of the guide path 29 (the end on the right side in the figure), and the lock pin 33 is connected to the lock hole 34 and the guide path 29. By being inserted into the end portion (the left end portion in the drawing), the movable metal fitting 21 is fixed so as not to move at the locking position P3.

As a result, the attachment device 13 supports the side wall 10 and the rib-like plate wall 11 of the top plate 2 by the support edge 23 a and the support edge 24 a of the fixed bracket 20, and the slit 28 a that constitutes the locking means 28 of the movable bracket 21. With the rib-like plate wall 11 fitted, it is firmly fixed to the side edge of the top plate 2. In the illustrated embodiment, the locking means 28 is constituted by the slit 28a. However, instead of or in addition to this, when the movable fitting 21 is moved to the locking position P3, the locking portion 27 of the movable fitting 21 is provided. The rib-shaped plate wall 11 may be sandwiched by the bracket portion 24 of the fixing bracket 20 or a wedge portion that is fitted to the inner surface of the groove portion 9 is provided on the locking portion 27 of the movable bracket 21. It is good also as a structure. In other words, the locking means 28 may be anything as long as it can lock the movable metal fitting 21 at any part of the groove 9 when moved to the locking position P3.

Further, in the illustrated embodiment, the lock means 32 is configured by providing the lock pin 33 on the shaft member 31, but the lock means 32 may have various configurations such as being configured by a member different from the shaft member 31. In short, what is necessary is just to fix the movable metal fitting 21 so as not to move at the locking position P3.

When detaching the attachment device 13 from the side edge of the top plate 2, the reverse procedure to the above attachment procedure may be performed. After releasing the locking means 32, the movable bracket 21 is moved from the locking position P3 to the upward movement position P2. If it moves to the stand-by position P1 via this, it will become possible to leave | separate the attachment apparatus 13 from the side edge part of the top plate 2. FIG.

By the way, in the illustrated embodiment, the movable bracket 21 is erected and pivoted from the standby position P1 to the upward movement position P2 with the shaft member 31 as a fulcrum, and the shaft member 31 is slid along the guide path 29. Since the movable fitting 21 is configured to move from the upward movement position P2 to the locking position P3, the movement of the movable fitting 21 from the standby position P1 through the upward movement position P2 to the locking position P3 is rotated and slid. Although there is an advantage that the mounting and dismounting operation of the mounting device can be easily and quickly performed by a complex series of operations that simultaneously perform movement, the present invention is not limited to such a configuration of the illustrated example. Of course. In the present invention, the movable bracket 21 is coupled to the fixed bracket 20 by the coupling means 22, and the movable bracket 21 is moved from the standby position P1 toward the upward movement position P2 and the locking position P3, and moved to the locking position P3. Then, there is a principle feature in that the movable metal fitting 21 is locked to the groove portion 9 of the top plate 2 by the locking means 28 and fixed so as not to move by the locking means 32. That is, as shown in FIG. 9A, when the fixed bracket 20 is attached to the side edge of the top plate 2 with the movable bracket 21 connected to the fixed bracket 20, the movable bracket 21 is attached to the top plate 2. 9 is positioned at a standby position P1 in a space below the horizontal line H extending from the tip of the rib-like plate wall 11 and inside the vertical line V. From the standby position P1, as shown in FIG. Is moved to an upward movement position P2 in the upper space opposite to the upper movement position P2 and moved to the engagement position P3 toward the groove portion 9 from the upward movement position P2 as shown in FIG. At the position P3, the movable fitting 21 may be locked to the groove 9 by the locking means 28, and the movable fitting 21 may be fixed to be immovable by the locking means 32.

DESCRIPTION OF SYMBOLS 1 Worktable 2 Top plate 8 Top plate wall 9 Groove part 10 Side wall 11 Rib-like board wall 13 Mounting apparatus 14 Additional function apparatus 14a Outrigger apparatus 14b Handrail apparatus 20 Fixing bracket 21 Movable bracket 22 Connecting means 23 Support part 23a Support edge 24 Bracket part 24b Contact Support edge 26 Connecting part 27 Locking part 28 Locking means 28a Slit 29 Guide path 30 Shaft support hole 31 Shaft member 32 Locking means 33 Lock pin 34 Lock hole 35 Spring

Claims (8)

A mounting device (13) for removably attaching an additional function device (14) to the side edge of the work table top plate (2), the top plate (2) facing inwardly below the side edge Forming a groove portion (9), and having a side wall (10) suspended from the top plate wall (8) and a rib-like plate wall (11) extending inward from the lower end of the side wall (10). ,
The fixing bracket (20) fixed to the additional function device (14) includes a support portion (23) attached to the outer surface of the side wall (10), and the plate wall (11) from the support portion (23). A bracket portion (24) extending downward is provided, and the bracket (24) is connected to the movable metal fitting (21) via the connecting means (22),
The connecting means (22) includes the movable bracket (21) with respect to the stationary bracket (20), the standby position (P1) inside and below the groove (9), and above the standby position. It is configured to be movable between an upward movement position (P2) facing the groove (9) and a locking position (P3) entering the groove (9),
The movable metal fitting (21) is provided with a locking means (28) that is removably locked to the groove (9) when moved to the locking position (P3),
Between the movable metal fitting (21) and the fixed metal fitting (20), there is provided a locking means (32) for immobilizing and fixing the movable metal fitting (21) in a state where the movable metal fitting (21) is moved to the locking position (P3). A mounting device for an additional function device in a work table. The connecting means (22) includes a guide path (29) provided in one of the fixed fitting (20) and the movable fitting (21), a shaft support hole (30) provided in the other, and the shaft support hole ( 30) is provided with a shaft member (31) for pivotally supporting the fixed bracket (20) and the movable bracket (21) with the guide path (29) being aligned with the shaft member (31). ), The movable bracket (21) is configured to be rotatable between the standby position (P1) and the upward movement position (P2),
The guide path (29) extends substantially parallel to the extending direction of the rib-like plate wall (11), and the shaft member (31) is movable along the guide path (29), thereby moving the movable member. The attachment device for an additional function device in a work table according to claim 1, wherein the metal fitting (21) is configured to be movable between the upward movement position (P2) and the locking position (P3). The locking means (28) is constituted by a slit (28a) provided in the movable metal fitting (21), and moves the movable metal fitting (21) from the upward movement position (P2) to the locking position (P3). The attachment device for an additional function device in a workbench according to claim 1 or 2, wherein the rib-like plate wall (11) is configured to be fitted into the slit (28a). A guide path (29) is provided on one of the fixed fitting (20) and the movable fitting (21), and a shaft support hole (30) and a lock hole (34) are provided side by side on the other side, and the shaft support hole (30 ) And the guide path (29) are aligned, and the shaft member (31) is slidably inserted in the axial direction, and the lock pin (33) folded back at the tip of the shaft member (31) is extended. The lock hole (34) is arranged so as to match the guide path (29) and receive the lock pin (33) in a state where the movable metal fitting (21) is moved to the locking position (P3). And
The coupling means (22) is configured by the guide path (29), the shaft support hole (30), and the shaft member (31), and the lock pin (33) is slid by sliding the shaft member (31) in the distal direction. The movable bracket (21) is configured to be rotatable between the standby position (P1) and the upward movement position (P2) via the shaft member (31) in a state where the shaft member (31) is released. 31) by making it movable along the guide path (29), the movable bracket (21) is configured to be movable between the upward movement position (P2) and the locking position (P3),
The lock means (32) is constituted by the lock hole (34) and the lock pin (33), and the shaft member (31) is closed with the movable fitting (21) moved to the locking position (P3). 2. The structure according to claim 1, wherein the lock pin (33) is slidably inserted into the guide path (29) through the lock hole (34) by sliding in the end direction. The attachment device of the additional function apparatus in the worktable of 2 or 3. The attachment device for an additional function device according to claim 4, wherein the shaft member (31) is elastically biased toward the tail end by a spring (35). The additional function device (14) is configured by an outrigger device (14a) that supports the work table (1) on the grounding surface, and the outrigger device (14a) is a main leg fixed to the fixing bracket (20) ( 15), an extendable leg (16) extending from the main leg (15) toward the ground surface, and a fixing means (17) for fixing the extendable leg (16) to the main leg (15) in a predetermined extended state. 6. The attachment device for an additional function device in a workbench according to claim 1, 2, 3, 4 or 5. The additional function device (14) is configured by a fall prevention device that stands up from a side edge of the top plate (2) of the workbench (1). 5. A mounting device for an additional function device in the workbench according to 5. A work table comprising an additional function device detachably fixed to a side edge portion of the top board by the mounting device according to claim 1, 2, 3, 4, 5, 6 or 7.

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