JP4594895B2 - Bridge top plate - Google Patents

Description

  The present invention relates to a bridge top plate that is bridged between end portions on the end of a plurality of work tables (each work table is composed of legs attached to both ends of a top plate) or between end portions on the side of a girder.

  Although publicly known documents such as patent gazettes cannot be specifically listed as conventional bridge top plates, the conventional bridge top plates are attached to the top plate main body and both ends of the top side of the top plate main body, respectively. For example, when a bridge top plate is bridged between the wife side end portions of two work tables facing in the longitudinal direction of the work table, the bridge top plate is Place the tip of the end fitting on the side of the wife so that it rests on the upper surface of the end of the end of the end of the workbench. The bridge top plate is placed on both worktables by spanning a substantially U-shaped fixing pin over the nearest hole of the hole that has been drilled many times as a means to prevent slippage. The connection is fixed.

  The fixing pin includes a vertical shaft portion, a horizontal shaft portion that horizontally extends integrally from the upper end portion of the vertical shaft portion, and a locking shaft portion that protrudes vertically downward from the tip portion of the horizontal shaft portion. A locking shaft that is substantially U-shaped and that inserts the locking shaft into the pin hole provided on the end fitting on the end of the bridge top plate and projects vertically downward from the tip of the horizontal shaft. The horizontal shaft is attached to the upper surface of the end fitting on the side of the bridge top so that it does not catch the shoes of the operator. Yes.

  In the conventional bridge top plate as described above, there is a pin hole provided in the end-side metal fitting of the bridge top plate and a certain distance from the pin hole along the longitudinal direction of the work table. A hole on the girder side end of the workbench that is located at a fixed distance from the pin hole along the width of the workbench across the hole on the end of the workbench's end or on the bridge top plate Since a substantially U-shaped fixing pin is spanned across the section, the pin hole at the end of the wives on the workbench side or the wives side at the workbench side from the pin hole on the top of the bridge If the length to the pin hole at the end is slightly different depending on the bridge top plate or workbench used, there is a problem that the fixing pin can not be passed, especially the workbench manufacturer When the manufacturer of the roof top board is different from the manufacturer, the problem was remarkable.

  In addition, in the conventional bridge top plate, the vertical shaft portion of the fixing pin is inserted into the pin hole provided on the end fitting on the end of the bridge top plate, and the locking shaft portion of this pin is inserted into the hole on the work platform side. Since it was only engaged in the part, there was a possibility that the fixing pin could come out of the bridge top plate due to vibration or the like.

  In view of the above-described problems, the present invention provides a pin even if the length from the pin hole on the bridge top plate side to the hole on the work table side differs slightly depending on the bridge top plate or work table used. It is an object of the present invention to provide a bridge top plate that can be easily handed over and prevents the fixing pins from coming out.

Means for solving the above problems will be described with reference numerals of the embodiments described later. The invention according to claim 1 is a plurality of leg units 2 and 2 attached to both ends of the top plate 1. A bridge top K that is bridged between the ends of the work table S between the ends of the wives or between the ends of the girders. The top plate main body 5 and the wives attached to the ends of both ends of the top plate main body 5 respectively. In the bridge top plate composed of the end fittings 6 and 6, a long hole 11 which is long in the top plate width direction is formed in the upper plate portion 6a of each of the end fittings 6 on the side of the wife. A portion 12a, a horizontal shaft portion 12b extending horizontally from the upper end portion thereof, and a locking shaft portion 12c that protrudes downward from the tip portion of the shaft portion 12a and can be locked in the hole A or B on the work table. together to the top plate width direction movably inserted along the long hole 11 of the vertical axis portion 12a of the bridge for top-panel-coupling pin 12 comprising a vertical shaft 12a by urging downwardly constantly by the coil spring 13 is fitted thereto, and characterized by comprising as attract horizontal axis portion 12b on the upper surface side of the gable end fitting 6.

  The bridge top plate according to claim 1 is characterized in that in the bridge top plate connecting pin 12, a pin pulling ring 15 is attached to an upper end portion of the vertical shaft portion 12a.

  The bridge top plate according to claim 1 or 2, wherein the bridge end plate 6 is provided with a guide groove 6c extending in a length direction of the long hole 11 below the long hole 11, A guide member 14 is slidably fitted in the guide groove 6c in the length direction, and the vertical shaft portion 12a of the bridge top plate connecting pin 12 passes through the guide member 14 so that the vertical shaft portion 12a and the guide member are inserted. 14 is provided with a coil spring 13 that interposes the horizontal shaft portion 12b to the upper surface side of the upper plate portion 6a of the end-side end fitting 6.

  The bridge top plate according to any one of claims 1 to 3, wherein the bridge top plate K is provided on the lower surface side of the end fitting 6 for preventing the bridge top plate K from being lifted during the bridge. The anti-lifting pin 17 is normally biased by the spring 18 so that the pin tip 17o protrudes from the end of the end of the wife 6 toward the lower end of the end of the end of the work table S or the end of the girder. The bridge top plate lift prevention pin 17 is provided.

  The effect of the invention by the above solution will be described with reference numerals in the embodiments described later. According to the bridge top plate of the invention according to claim 1, the bridge ceiling attached to the end fitting 6 on the end of the bridge is provided. The plate connecting pin 12 has a vertical shaft portion 12a that is slidable along the long hole 11 of the upper plate portion 6a, and is always urged downward by a coil spring 13 so that the horizontal shaft portion 12b is an upper surface of the end fitting 6 on the end of the wife. Since the bridge top plate K is bridged between, for example, the wive end portions of the work tables S and S, the wive side end fitting 6 is in a state of being attracted to the side and is rotatable around the vertical shaft portion 12a. The vertical shaft portion 12a is pulled up with the front end portion 6o placed on the top surface of the end of the wives side of the work table S, and the horizontal shaft portion 12b is pivoted and swung appropriately around the vertical shaft portion 12a. The shaft portion 12c for locking the tip portion is slid along the The length from the pin hole on the bridge top plate K side to the hole A or B on the work table side by inserting and locking it to the nearest hole A or B on the top plate 1 of the work table S, Even if the bridge top plate K or work platform S to be used is slightly different, the bridge top plate connecting pin 12 can be accurately and easily transferred. Further, the bridge top plate connecting pin 12 is safe without being pulled out by vibration or the like.

  According to the bridge top plate of the invention of claim 2, the bridge top plate connecting pin 12 has the pin lifting ring 15 attached to the upper end portion of the vertical shaft portion 12a, so that the ring 15 is lifted. By doing so, it becomes easy to attach and detach the bridge top plate connecting pin 12 to the hole A or B on the work table S side.

  As in the invention according to claim 3, a guide groove 6c extending in the length direction of the long hole 11 is provided in the end-side metal fitting 6, and a guide member 14 is slidably fitted in the guide groove 6c. The member 14 passes through the vertical shaft portion 12 a of the bridge top plate connecting pin 12, and the horizontal shaft portion 12 b is inserted between the vertical shaft portion 12 a and the guide member 14 and the upper plate portion 6 a of the end fitting 6 on the side of the wife. By adopting a configuration in which the coil spring 13 that is attracted to the upper surface side is interposed, the mounting structure of the bridge top plate connecting pin 12 is simple and compact, and the bridge top plate K can be easily manufactured.

  As the bridge top plate of the invention according to claim 4, the bridge top plate lift prevention pin 17 is provided on the lower surface side of the end fitting 6, so that the bridge top plate K is lifted by wind pressure or the like. Can be avoided and accidents can be avoided.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a plurality of work tables S arranged at regular intervals on the front, rear, left, and right sides, and wives side ends of these work tables S. FIG. 2 is a plan view showing a plurality of bridge top plates K bridged between the sections and between the end portions of the girders, FIG. 2 is a front view thereof, and FIG. A plan view, (b) is a front view thereof. 4 (a) is an enlarged view of a portion indicated by an arrow A in FIG. 1, FIG. 4 (b) is an enlarged view of a portion indicated by an arrow B in FIG. 1, and FIG. 5 (a) is an enlarged view of FIG. Fig. 4 is an enlarged sectional view taken along line XX of Fig. 3, (b) is an enlarged view seen from an arrow Y in Fig. 3 (a), and (c) is an enlarged view of a portion indicated by an arrow C in Fig. 3 (b).

  As shown in FIG. 1 and FIG. 2, the work table S is formed by attaching legs 2 and 2 to both ends of the top plate 1 via a rotary connecting bracket 3, respectively. , A pair of side frames 2a, 2a and a plurality of spades 2b horizontally mounted between the side frames 2a, 2a, so that the cue bar 4 can be used in a vertical posture at the upper end of each side frame 2a. It is attached. The top plate 1 has a plurality of holes A and B as anti-slip means (see FIGS. 1 and 4). The hole A is a burring hole formed by burring, the hole B is a normal hole not burring, and the inner diameters of both the holes A and B are substantially the same.

  The bridge top plate K includes a top plate body 5 made of an aluminum extrusion mold material, and wive side end fittings 6 and 6 made of an aluminum extrusion mold material respectively attached to both end portions of the top plate body 5. As shown in FIG. 5, the end-side metal fitting 6 has an upper plate portion 6a positioned so as to follow the upper surface of the top plate body 5, and a top plate width direction on the lower surface side of the upper plate portion 6a. It consists of a pair of downward protruding ridges 6b, 6b arranged in parallel so as to extend in parallel, and guide grooves 6c, 6c are formed on the inner side upper portions of both downward protruding ridges 6b, 6b. When attaching the plate main body 5 to the end of the wives side, the U-shaped frame 6d formed at the base end of the end of the end of the wives 6 is fitted to the end of the top side of the top plate 5 Attach by riveting. The top plate body 5 is also provided with a large number of holes C and D as anti-slip means (see FIG. 3). The hole C is a burring hole, and the hole D is a normal hole.

  In FIGS. 1 and 2, reference numeral 7 denotes a handrail attached by a mounting bracket 8 along the end of the top plate 1 of the work table S and the top plate body 5 of the bridge top plate K.

  Long holes 11, 11 that are long in the width direction of the top plate are formed in the end-side metal fittings 6 of the bridge top plate K on both ends in the longitudinal direction of the upper plate portion 6 a, respectively. The vertical shaft portion 12a, the horizontal shaft portion 12b extending horizontally from the upper end portion of the vertical shaft portion 12a, and the locking portion that protrudes downward vertically from the tip portion of the vertical shaft portion 12a and can be locked in the hole A or B on the work table S side. The vertical shaft portion 12a of the bridge top plate connecting pin 12 composed of the shaft portion 12c is slidably inserted along the long hole 11, and the vertical shaft portion 12a is always urged downward by the coil spring 13. Thus, the vertical shaft portion 12a is attracted to the upper surface side of the upper plate portion 6a of the end-side end fitting 6.

  The mounting structure of the bridge top plate connecting pin 12 will be further described. The end-side metal fitting 6 has two downward projecting ridge portions 6b and 6b positioned below the long hole 11 formed in the upper plate portion 6a. Guide grooves 6c and 6c extending in the length direction of the long hole 11 are formed on the upper side of the inner side surfaces, respectively, and both side portions of the guide member 14 are slidable in the guide groove length direction in the guide grooves 6c and 6c. The vertical shaft portion 12a of the bridge top plate connecting pin 12 is passed through the guide member 14, and the horizontal axis of the bridge top plate connecting pin 12 is interposed between the vertical shaft portion 12a and the guide member 14. A coil spring 13 for interposing the part 12b on the upper surface side of the upper plate part 6a of the wife side end fitting 6 is interposed.

  6A is a front view of the bridge top plate connecting pin 12, and FIG. 6B is a plan view thereof. As can be seen from this figure, a pin pulling ring 15 is swingably attached to the upper end portion of the vertical shaft portion 12a of the bridge top plate connecting pin 12. Further, a flat washer 21 is attached to the upper end portion of the vertical shaft portion 12a so as to be in contact with and positioned on the upper surface of the upper plate portion 6a of the end-side end fitting 6.

  In order to attach the bridge top plate connecting pin 12 to the end-side metal fitting 6, first, both sides of the guide member 14 are slidably fitted into the guide grooves 6 c, 6 c of the end-side metal fitting 6, and then the bridge is mounted. The vertical shaft portion 12a of the top plate connecting pin 12 is inserted into the vertical shaft insertion hole (not shown) of the guide member 14 from the long hole 11 of the end fitting 6 and the lower end portion is inserted into the vertical shaft portion 12a. It is only necessary that the coil spring 13 is fitted from the side, and the lock nut 16 is screwed to the tip of the vertical shaft portion 12a in a state where the coil spring 13 is compressed.

  In the bridge top plate connecting pin 12 attached to the wife side end fitting 6 as described above, the vertical shaft portion 12a is always urged downward by the coil spring 13, and the horizontal shaft portion 12b is fixed to the wife side end fitting. The horizontal shaft portion 12b is pivotable about the vertical shaft portion 12a and is slidable along the long hole 11.

  Therefore, when the bridge top plate K is bridged between the end portions of the work table S, S, the end portion 6o of the end member 6 is placed on the upper surface of the end surface of the work table S. In this state, the pin lifting ring 15 is grasped and lifted, the vertical shaft portion 12a of the bridge top plate connecting pin 12 is lifted against the urging force of the coil spring 13, and the horizontal shaft portion 12b is centered on the vertical shaft portion 12a. The locking shaft 12c at the tip is inserted into the nearest hole A or B provided in the top plate 1 of the work table S while appropriately sliding along the long hole 11 while swinging and turning as appropriate. Thus, the state shown in FIG. 5B is obtained.

  Further, as shown in FIG. 5 (c), a lifting prevention pin 17 is provided on the lower surface side of the end member 6 for preventing the bridge top plate K from rising during the bridge. . That is, as shown in FIG. 7 (a), the prevention pin 17 is formed in a U-shape in plan view with the two vertical axis portions 17a, 17a and the horizontal axis portion 17b. ), The middle portion of both longitudinal axis portions 17a and 17a is inserted into the bracket 19, and a coil spring 18 is fitted into the middle portion, and the biasing force of the coil spring 18 causes the tip portion 17o of the U-shaped pin 17 to The bracket 19 is attached to the lower surface side of the wife side end fitting 6 with a rivet 20 or the like so that 17o can protrude from the bridge top plate K side to the lower surface side of the end side or girder side end of the work table S. It is intended to be fixed.

  FIG. 5C shows a state in which the bridge top plate K is prevented from being lifted by the lift prevention pins 17 when the bridge top plate K is bridged between the ends of the work tables S and S on the wives side. . From this state, the prevention pin 17 is pulled inward, that is, in the direction of the arrow in the figure against the urging force of the coil spring 18, and the distal end portions 17 o and 17 o of the pin 17 are pulled forward. By retracting inward from 6o, the bridge top K can be taken out from between the ends of the work table S, S on the wive side.

  FIG. 4 (a) is an enlarged view of the part indicated by the arrow A in FIG. 1, and the end-side bracket of the top plate body 5 of the top plate K for the bridge bridged between the end portions of the work tables S and S. 6 shows a connected state. In this connection, the bridge top plate connecting pin 12 is connected via the pin pulling ring 15 from the state in which the tip end 6o of the end bracket 6 is placed on the top surface of the top end 1 of the work table S. The vertical shaft portion 12a is pulled up, the horizontal shaft portion 12b of the bridge top plate connecting pin 12 is pivoted about the vertical shaft portion 12b, and the horizontal shaft portion 12b is appropriately slid along the elongated hole 11 while appropriately swinging. The locking shaft 12c may be inserted into the nearest hole A or B in the worktable side top plate 1 and locked.

  In the example shown in FIG. 4 (a), the horizontal shaft portion 12b of the top plate connecting pin 12 extends from the end portion of the long hole 11 in the top plate length direction, and the locking shaft portion 12c at the tip portion is the work table. Although the state where it is engaged in the nearest hole B of the side top plate 1 is shown, for example, the nearest hole B of the work table side top plate 1 is shifted upward from the position shown on the paper surface of FIG. 4 ', the vertical shaft portion 12a of the top plate connecting pin 12 may be slid upward along the long hole 11 from the position shown in FIG. 4 (a). When the nearest hole B of the side top plate 1 is at a position B ″ that is slightly shifted to the right and obliquely downward from the position shown in FIG. 4A, for example, the vertical axis of the top plate connecting pin 12 While sliding the portion 12a along the elongated hole 11 upward in the drawing, the horizontal shaft portion 12b is swung downward in the drawing around the vertical shaft portion 12a. Just do it.

  FIG. 4 (b) is an enlarged view of the part indicated by the arrow B in FIG. 1, and the top plate of the bridge top plate K when the bridge top plate K is bridged between the beam side ends of the work tables S and S. The connected state of the end-side metal fitting 6 of the main body 5 is shown. Also in this connection, the bridge top plate connecting pin 12 is connected via the pin pulling ring 15 from the state in which the tip end 6o of the end fitting 6 is placed on the top surface of the top end 1 of the work table S. The vertical shaft portion 12a is pulled up, the horizontal shaft portion 12b of the bridge top plate connecting pin 12 is pivoted about the vertical shaft portion 12b, and the horizontal shaft portion 12b is appropriately slid along the elongated hole 11 while appropriately swinging. The locking shaft 12c may be inserted into the nearest hole A in the worktable side top plate 1 and locked.

  Further, in FIG. 4B, when the nearest hole A in the work table side top plate 1 is at the position A ′ shifted obliquely to the upper left from the position shown in the drawing, the top plate connecting pin 12 By sliding the vertical shaft portion 12 a along the long hole 11, the locking shaft portion 12 c at the distal end portion can be accurately inserted and locked in the hole portion A at the position of A ′.

It is a top view showing a plurality of worktables arranged at regular intervals on the front, rear, left, and right, and a plurality of bridge tops respectively bridged between the wive end portions and between the girder end portions of these work stands. is there. FIG. 2 is a front view of the work table and the top plate for bridge shown in FIG. 1. (a) is a plan view of the bridge top, and (b) is a front view thereof. (a) is an enlarged view of a portion indicated by an arrow A in FIG. 1, and (b) is an enlarged view of a portion indicated by an arrow B in FIG. (a) is an enlarged cross-sectional view taken along line XX in FIG. 3 (a), (b) is an enlarged front view as seen from arrow Y in FIG. 3 (a), and (c) is in FIG. 3 (b). It is an enlarged view of the part shown by arrow c. (a) is a front view of a bridge top plate connecting pin, and (b) is a plan view. A front view of the lifting prevention pin attached to the bracket, (b) is a plan view thereof.

Explanation of symbols

S Work table 1 Top plate 2 Legs A and B Top plate hole K Bridge top plate 5 Top plate body 6 Wife side end fitting 6a Wife side end fitting upper plate 11 Long hole 12 Bridge top plate Connecting pin 12a Vertical shaft portion 12b Horizontal shaft portion 12c Locking shaft portion 13 Coil spring 14 Guide member 15 Pin lifting ring 17 Lifting prevention pin

Claims (4)

A top plate for a bridge that is bridged between the ends of the wives or the ends of the girders of a plurality of worktables that have legs attached to both ends of the top plate. In the bridge top plate consisting of wife side end fittings attached to the side ends,
A long hole in the top plate width direction is formed in the upper plate part of each end fitting on the side of each wife, and the vertical shaft and the horizontal shaft part extending horizontally from the upper end part of the vertical shaft part and the tip thereof are formed in the long hole. The vertical shaft portion of the bridge top plate connecting pin that protrudes vertically downward from the portion and can be locked to the hole portion on the workbench side is movable in the top plate width direction along the long hole. The bridge top plate is characterized in that it is inserted, and the vertical shaft portion is always urged downward by a coil spring fitted therein, so that the horizontal shaft portion is attracted to the upper surface side of the wife side end fitting. .   The bridge top plate according to claim 1, wherein a pin pulling ring is attached to an upper end portion of a vertical shaft portion of the bridge top plate connecting pin.   A guide groove extending in the length direction of the long hole is provided in the end fitting on the side of the end, and a guide member is slidably fitted in the guide groove in the length direction. A coil spring that passes through the vertical shaft portion of the top plate connecting pin for use and that attracts the horizontal shaft portion to the upper plate portion upper surface side of the end fitting on the side of the end is interposed between the vertical shaft portion and the guide member. The bridge top plate according to claim 1 or 2.   On the lower surface side of the end fitting on the side of the wife, there is a lifting prevention pin for preventing the top plate of the bridge from being lifted at the time of bridge construction. The bridge top plate according to any one of claims 1 to 3, further comprising a bridge top plate lifting prevention pin that is biased so as to protrude toward the lower surface side of the end portion on the end side or the end portion of the girder. .

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