JP4068632B2 - Cloth board slip prevention jig in temporary scaffold - Google Patents

Description

  The present invention relates to a jig for preventing displacement of a cloth plate, which is a work floor of a temporary scaffold, in assembly work of a temporary scaffold for construction work such as civil engineering or a construction site, or construction work using a temporary scaffold.

  An example of a temporary scaffold at a construction site is shown in FIG. As shown in the figure, the temporary scaffold 1 is configured such that the clamp members 4 at the front and rear ends are engaged with the horizontal members 3 of the opposing building frames 2 and 2, and the two cloth boards 5 are placed between the building frames 2 and 2. Install and use. However, the cloth board 5 has an opening that is shifted to the left and right from the original position of the cloth board due to various factors such as wind and vibration caused by walking of the worker, or temporary temporary placement of materials, and threatens the safety of the worker. Often it forms. In order to prevent this, generally, a method of binding and fixing the clamp fitting 4 of the cloth board 5 to a building frame using a binding wire such as a wire or a thin wire (hereinafter referred to as “iron wire”) is widely used. Yes. However, the work of fixing using the iron wire deteriorates the efficiency of the scaffold assembling work and requires many iron wires. In addition, since there is a possibility of injury by stepping on the end of the iron wire or getting caught on clothes when passing through the scaffolding, it is necessary to pay sufficient attention to the treatment after binding the iron wire. Furthermore, this iron wire cannot be diverted elsewhere, and it becomes a factor that generates a huge amount of metal dust when the scaffold is dismantled.

  There has been proposed a temporary scaffold using a spacer that prevents the displacement of the cloth plate without relying on such iron wire binding (see Patent Document 1).

JP 2004-11290 A

  However, the proposed spacer is constructed so as to prevent the movement of the cloth plate by fitting the spacer to the exposed portion generated by moving the two cloth boards to the left or right. As a result, there is a problem in that the exposed portion of the exposed part is moved to the other of the left side or the right side, and as a result, the gap width of the exposed part moved to the other side is increased, and there is a risk that a tool or the like falls from the large gap. .

  The present invention has been made in view of the above problems, and can provide a cloth board slippage prevention jig that can greatly improve the assembly work efficiency and safety of a temporary scaffold, and is also environmentally friendly and economical. The purpose is to do.

  It is another object of the present invention to provide a cloth board slip prevention jig having a high barrier-free effect.

In order to solve the above-mentioned problem, a cloth board slippage prevention jig according to claim 1 according to the present invention comprises:
The two pieces of cloth in the temporary scaffolding in which the clamp members at the four front and rear positions are locked to the horizontal members of the building frame facing each other and two cloth boards are installed between the building frames along the horizontal members. It is a cloth board slip prevention jig that prevents the slip along the horizontal material of the board,
Across the horizontal member of Kenwaku, the top four corners corresponding to the four clamp fitting, which is engaged near the center of the horizontal member of the two cloths plates 2 cloths plate and the rear of the front A rectangular frame that is placed so as to straddle and has a rectangular opening that can accommodate all four clamp fittings that are locked toward the center of the horizontal member on its upper surface ;
Projects from both sides of the rectangular frame body downward, located on both sides of the four clamp fitting, which is engaged near the center of the horizontal member, the gap between the horizontal member and the before and after each fabric sheet and four leg portions which are inserted in the,
Wherein the retaining member into four legs are attached held in a state of being inserted in the gap between the respective fabric sheet before and after said legs horizontal member, lockable fixed to the lower horizontal member Nails for use ,
In a state where all four clamp fittings locked toward the center of the horizontal member are accommodated in the rectangular opening on the upper surface of the frame body, they are positioned on the inner side of the opening and on the outer side of the four clamp fittings. It consists inserter and which is inserted into the gap between the clamp bracket to the four clamp fittings accommodated in the rectangular opening of the frame body, the horizontal member by the inner surface and the inserter of the opening characterized by comprising in the so that is restricted from moving I along the.

  On the horizontal material of the building frame of the temporary scaffold, the clamp fittings of the two cloth plates on the front and the two cloth plates on the rear are held with the horizontal material interposed therebetween. The cloth board slippage prevention jig of the present invention is such that, among the clamp fittings provided in each cloth board, the clamp fittings located near the center of the horizontal member are simultaneously fixed to the horizontal member at the same time. It is intended to prevent shifting along the horizontal material.

Cover the four clamp fittings near the center of the horizontal member with the frame of the cloth plate displacement prevention jig from above, and place the four legs of the cloth plate displacement prevention jig on both sides of the four clamp fittings. their respective insert disposed between the horizontal member located between the cloth plate before and after, it is placed on the upper surface of the corner portions of the fabric sheet corresponding to the frame into four clamps fittings. In this mounted state, the clamp fittings locked toward the center of the horizontal member are all accommodated in the rectangular opening on the upper surface of the frame. In this state, the fixing claw member is locked to the lower side of the horizontal member. The movement of the four clamp fittings accommodated in the rectangular opening on the upper surface of the frame body along the horizontal member is restricted by the inner surface of the opening.
Furthermore, the gap between the inner surface of the opening and the clamp fitting located on the outside of the four clamp fittings has a groove on both end faces, and the groove is formed in the width direction of the rectangular opening. By installing an inserter that fits and fits along the edge portion along, the width dimension of the rectangular opening can be adjusted, and the movement of the four clamp fittings along the horizontal member can be more strongly regulated.
Thereby, the shift | offset | difference along the horizontal material of each cloth board can be prevented.

  The displacement along the horizontal material of each cloth board can be prevented, and the gap between the cloth boards along the horizontal material can be regulated within a predetermined dimension (for example, within 3 cm).

Cover the rectangular frame from above with four clamps locked near the center of the horizontal member, and insert the four legs into the gaps between the horizontal member and the front and back cloth plates for fixing. The four clamp fittings can be fixed to the horizontal member by an extremely simple operation of locking the claw member to the lower side of the horizontal member, and the assembly work efficiency of the temporary scaffold is greatly improved.
In addition, by providing an inserter that fits into the frame, there is no need to prepare multiple-size cloth board displacement prevention jigs, and width-sized cloth board displacement that matches the largest cloth board and clamp fittings. If a prevention jig and several types of inserters having different width dimensions are prepared, cloth plates and clamp fittings of smaller sizes can be handled by selecting the inserter.
The effect of the cloth board shifting jig of the present invention is greater as the number of cloth boards used in the temporary scaffold is larger.

  The cloth board slippage preventing jig according to claim 2 of the present invention is characterized in that the front and rear surfaces of the frame body are smooth slopes.

  The upper surface of the frame body and the slopes of the front and rear surfaces are in a state where the frame body is placed so as to cover the four corners of the four cloth boards so that the frame body covers the four clamp fittings from above. It is possible to obtain a barrier-free effect that relaxes the step between the cloth board and the four clamp fittings and relaxes the barrier when passing on the cloth board. As a result, the worker can safely travel on the cloth board.

  According to a third aspect of the present invention, there is provided a cloth board displacement prevention jig in which a notch space having an upper inner shape along an upper outer shape of a horizontal member is formed between front and rear legs.

  With the front and rear legs inserted and arranged in the gap between the horizontal material and the front and back fabric boards, the upper outer surface of the horizontal material abuts the wide area of the upper inner surface of the notch space between the legs, and the fixing claw member is It can be stably locked to the lower side of the horizontal member.

  According to the fourth aspect of the present invention, there is provided the cloth board displacement prevention jig according to the present invention, wherein either one of the front and rear legs is positioned between a position where it is locked to the lower side of the horizontal material and a position where it is released from the lower side of the horizontal material. A fixing claw member having two guide grooves is mounted and held by a holding member so that it can move in an arc, and the fixing claw member is locked to the lower side of the horizontal member in each guide groove of the fixing claw member. A first locking portion for holding the holding member and a second locking portion for holding the holding member at a position where the fixing claw member is detached from the lower side of the horizontal member are provided.

  The fixing claw member that can be locked to the lower side of the horizontal member with a very simple structure can be configured, and the operation of the fixing claw member can be very simple.

As described above, according to the cloth board slippage prevention jig of the present invention, the frame body is covered from the top to the four clamp fittings locked near the center of the horizontal member, and the four leg portions are attached to the horizontal member and the front and rear. The assembly work efficiency of the temporary scaffolding is greatly improved by a jig with an extremely simple structure that is inserted into the gap between each of the fabric boards and the locking claw member is locked to the lower side of the horizontal material. It is environmentally friendly and has excellent economic efficiency.
In addition, by providing an inserter that fits into the frame, there is no need to prepare multiple-size cloth board displacement prevention jigs, and width-sized cloth board displacement that matches the largest cloth board and clamp fittings. If a prevention jig and several types of inserters having different width dimensions are prepared, cloth plates and clamp fittings of smaller sizes can be handled by selecting the inserter.

  In addition, the front and back of the frame body can be inclined, and the step between the cloth plate and the clamp bracket can be relaxed between the upper surface of the frame body and the front and rear inclined surfaces, and the effect of making a jig with a high barrier-free effect can be obtained. Play.

The best mode for carrying out the present invention will be described with reference to FIGS. In these drawings, reference numeral 10 denotes a cloth plate displacement prevention jig, 11 denotes a rectangular frame in plan view, 12 denotes a leg portion, 13 denotes a fixing claw member, and 20 denotes an inserter. The tool 10 includes the frame body 11, the leg portion 12, the fixing claw member 13, and the inserter 20 .

  The frame 11 is located near the center of the horizontal member 3 between the two cloth plates 5 and 5 at the front and the two cloth plates 5 and 5 at the back with the horizontal member 3 in the middle of the building frame 2 shown in FIG. Has a size straddling the upper surfaces of the four corners 5a, 5a... Corresponding to the four clamp fittings 4, 4. On the upper surface 11a of the frame 11, a rectangular opening 14 having a size capable of accommodating all the four clamp fittings 4, 4... Is formed. Further, slopes 11b approaching each other as they go upward are formed on the front and rear surfaces of the frame body 11, and the slope angle θ of the slope 11b from the horizontal plane is 30 degrees. The inclination angle θ of the inclined surface 11b is smaller than the inclination angle θ1 of the inclined surfaces of the front and rear ends of the clamp fitting 4, and as a result, it functions to alleviate the steps between the cloth plates 5 and the clamp fittings 4, 4,. Yes. 4 and 5 show a state in which the four clamp fittings 4, 4... Are accommodated in the opening 14.

  A total of four legs 12 protrude downward from the both sides of the frame 11 at a predetermined interval in the front and rear, and are locked toward the center of the horizontal member 3 as shown in FIGS. 4 and 5. It is located on both sides of the four clamp fittings 4 and is arranged to be inserted into the gaps S between the horizontal member 3 and the front and rear cloth plates 5. As shown in FIG. 5, a notch space 15 having an arc surface 15 a is formed between the leg portions 12, 12 positioned at the front and rear, and the arc surface 15 a substantially follows the shape of the upper outer surface of the horizontal member 3 having an annular cross section. It is a curved surface.

  One fixing claw member 13 is provided on either of the four legs 12, 12 of the frame body 11 either on the front or rear of both sides. In FIG. 1, a fixing claw member is disposed on one side (front side in FIG. 1) of the both sides of the frame body 11 with respect to a leg portion 12 near the front (the left side in FIG. 1 is the front and the right side is the rear). It is attached and held by two holding members 16 and 17 so that the arc 13 can move between a position where 13 is locked to the lower side of the horizontal member 2 and a position where it is released from the lower side of the horizontal member 2. More specifically, the fixing claw member 13 is perforated with two guide grooves 18 and 19 along the arc line so that the fixing claw member 13 can move in an arc between the two positions. , 19 are inserted through the holding members 16, 17 respectively.

  In each guide groove 18, 19, first locking portions 18 a, 19 a that hold the holding members 16, 17 at positions where the fixing claw member 13 is locked to the lower side of the horizontal member 2 are fixed at the upper end. 2nd latching | locking part 18b, 19b holding the holding members 16 and 17 in the position which remove | deviates the nail | claw member 13 completely from the lower side of the horizontal material 3 is each provided in the lower end limit.

  Similarly, on the other side (the back side in FIG. 1) of the both sides of the frame body 11, the fixing claw member 13 having the same structure as described above is provided with two holding members 16, 17 with respect to the leg portion 12 near the rear. It is attached and held so as to be capable of arc motion. Examples of the holding members 16 and 17 include rivets and bolts as shown in FIG. In the case of a rivet, a hole is drilled at a predetermined position in the plate thickness direction of the leg portion 12, a rivet is inserted, and the tip is crushed and tightened. In the case of a bolt, insert it into the hole in the same way and tighten the nut. The fixing claw member 13 is fastened to such an extent that the side surface of the leg portion 12 can slide.

  The cloth plate displacement prevention jig 10 having the above configuration can integrally manufacture the frame body 11 and the leg portion 12 by cutting, bending, and welding an iron plate such as SS400. Sufficient strength can be ensured by using an iron plate. Moreover, in order to improve rust prevention property, it is good to finish by hot dip galvanization. The fixing claw member 13 can be easily manufactured by cutting an iron plate, and can be easily attached to the leg portion 12 with a rivet or the like. For this reason, the manufacturing cost is low, it is suitable for mass production, and it is economical.

  Next, a method of using the cloth plate displacement prevention jig 10 having the above configuration will be described.

  As shown in the temporary scaffold 1 in FIG. 10, two cloth plates 5 are provided between the intermediate building frame 2 and the front building frame 2, and between the intermediate building frame 2 and the rear building frame 2. However, the clamp fitting 4 is engaged with the horizontal member 3 and installed. As a result, as shown in FIG. 10, the clamp member 4 of the four cloth boards 5 is locked to the horizontal member 3 of the intermediate building frame 2 with the horizontal member 3 sandwiched between them. The remaining four clamp fittings 4 except for the four clamp fittings 4 are located closer to the center of the horizontal member 3.

  The cloth board displacement prevention jig 10 is attached so that the frame body 11 is covered from above the four clamp fittings 4 near the center. First, as shown in FIGS. 4 and 5, the four leg portions 12 of the cloth plate displacement prevention jig 10 are positioned on both sides of the four clamp fittings 4, and the horizontal member 3 and the front and rear cloth plates 5. The gap 11 is inserted into the gap S from above, the arcuate surface 15a of the notch space 15 is brought into contact with the upper outer peripheral surface of the horizontal member 3, and the frame body 11 is provided with four corners 5a closer to the center of the front and rear cloth plates 5. It is placed so as to straddle the upper surface of. At this time, all the four clamp fittings 4 near the center of the horizontal member 3 are accommodated in the openings 14 on the upper surface of the frame 11.

  Next, from the state of FIG. 5, the fixing claw member 13 is given the counterclockwise arc motion of FIG. 5, and the tip of the fixing claw member 13 is engaged with the lower side of the horizontal member 3 as shown in FIG. 6. Stop. At this time, the upper and lower holding members 16 and 17 are positioned at the first locking portions 18a and 19a at the upper limit of the guide grooves 18 and 19, and the locking claw member 13 is locked to the lower side of the horizontal member 3. It becomes a fixed state. In this fixed state, the fixed state is maintained and the fixed state is not easily released unless the fixing claw member 13 is artificially circularly moved clockwise in FIG.

  In a state where the fixing claw member 13 is locked to the lower side of the horizontal member 3, the four clamp fittings 4 accommodated in the opening 14 on the upper surface of the frame 11 are horizontally aligned by the inner side surface 14 a of the opening 14. Movement along the material 3 is restricted. Thereby, the shift | offset | difference with respect to the direction along the horizontal member 3 of the cloth board 5 can also be prevented.

Depending on the size of the cloth plate 5, a gap is formed between the inner surface 14a and the clamping bracket 4 of the frame 11 shown in FIG. In this case, in order to close the gap, the inserter 20 shown in FIGS. 8 and 9 is mounted in the opening 14 of the frame 11 to reliably restrict the movement of the clamp fitting 4 along the horizontal member 3 .

The inserter 20, as shown in FIG. 8, a recessed groove located on one lateral shift in the width direction W of the rectangular opening 14 of the upper surface of the frame body 11, provided at opposite ends end surface of the inserter 20 20 a, 20 a and the width direction W of the opening 14 edge portion 14a, by fitting the 14a, fixed instrumentation attachment to the opening 14, thereby adjusting the width W1 of the opening 14.
Therefore, to keep a several inserter 20 having different widths W2, the can fine adjust the width W1 of the opening 14, reliably restrict to a movement along the horizontal member 3 of the clamping bracket 4 It is to be able to ing.

In order to attach the inserter 20 to the rectangular opening 14, the inserter 20 is temporarily arranged in the opening 14 along the diagonal line of the rectangular opening 14, as shown by the one-dot chain line in FIG. 8. and, is rotated about the center line G, the edge portion 14a along the groove 20 a, 20 a of both end edge of the inserter 20 in the width direction W of the opening 14, fitted to 14a, as the width direction W Move to one side of

  The inventor made a prototype of the fabric board displacement prevention jig 10 according to the present invention. The size of the prototype fabric board displacement prevention jig 10 is such that the frame 11 is width × length × height = 110 mm × 180 mm × 14 mm, and the opening 14 of the frame 11 is width × length = 70 mm × 110 mm. . Here, the width indicates a direction along the horizontal member 3, and the length indicates a direction orthogonal to the horizontal member 3. It turned out that it can apply to the size of most cloth boards 5 currently marketed by making the opening part 14 of the frame 11 into the said magnitude | size. That is, if the opening part 14 of the frame 11 is made into the said magnitude | size, when most cloth boards 5 marketed now are applied to the temporary scaffolding 1, it will be latched in the center of the horizontal material 3. It was found that all of the clamp fitting 4 can be accommodated in the opening 14.

  The cloth board slippage prevention jig according to the present invention is used as a jig for preventing a cloth board, which is a work floor of a temporary scaffold for construction work or repair work in a civil engineering or construction site, in a direction along a horizontal material. be able to.

Perspective view of the onset bright cloth plate displacement prevention jig, FIG. 1 is a plan view of the cloth plate displacement prevention jig shown in FIG. The perspective view which shows the state which looked up at the cloth board slippage prevention jig | tool shown in FIG. 1 from diagonally downward, The top view which shows the state which mounted | wore the horizontal material and cloth board of the building frame of a temporary scaffold with the cloth board slip prevention jig | tool shown in FIG. FIG. 4 is a cross-sectional view taken along line AA in FIG. 4, and is a cross-sectional view illustrating a state in which the cloth plate displacement prevention jig is fixed to a horizontal member; Sectional view showing a state before fixing the cloth plate displacement preventing jig to water flat material, Sectional view showing a fixed state of the fabric sheet misalignment preventing jig to water flat material, The top view explaining the example which mounts an inserter in the opening of a frame, FIG. 8 is a cross-sectional view taken along the line B- B of FIG. The perspective view which shows the temporary scaffold which applies the cloth board deviation | shift prevention jig | tool of this invention ,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Temporary scaffolding 2 Building frame 3 Horizontal material 4 Clamp metal fitting 5 Cloth board 10 Cloth board deviation prevention jig 11 Frame 11a Upper surface 11b Slope 12 Leg part 13 Fixing claw member 14 Opening part 14a Edge part 15 Notch space 15a Arc surface 16 , 17 Holding member 18, 19 Guide groove 18a, 19a First locking portion 18b, 19b Second locking portion
20 inserters
20 a Groove W Width direction W1 Opening width dimension W2 Inserter width dimension

Claims (5)

The two pieces of cloth in the temporary scaffolding in which the clamp members at the four front and rear positions are locked to the horizontal members of the building frame facing each other and two cloth boards are installed between the building frames along the horizontal members. It is a cloth board slip prevention jig that prevents the slip along the horizontal material of the board,
Across the horizontal member of Kenwaku, across the upper surface of the four corners corresponding four clamping bracket which is engaged near the center of the horizontal member of the two cloths plates 2 cloths plate and the rear of the front A rectangular frame having a rectangular opening formed on the upper surface thereof and capable of accommodating all four clamp fittings locked toward the center of the horizontal member ;
Projects from both sides of the rectangular frame body downward, located on both sides of the four clamp fitting, which is engaged near the center of the horizontal member, the gap between the horizontal member and the before and after each fabric sheet and four leg portions which are inserted in the,
Wherein the retaining member into four legs are attached held in a state of being inserted disposed in a gap between the respective fabric sheet before and after said legs horizontal member, which can be locked to the lower horizontal member A fixing claw member ;
In a state where all four clamp fittings locked toward the center of the horizontal member are accommodated in the rectangular opening on the upper surface of the frame body, they are positioned on the inner side of the opening and on the outer side of the four clamp fittings. It consists inserter and which is inserted into the gap between the clamp bracket to the four clamp fittings accommodated in the rectangular opening of the frame body, the horizontal member by the inner surface and the inserter of the opening cloth plate displacement preventing jig characterized by comprising as is restricted from moving I along the. The cloth board slippage prevention jig according to claim 1, wherein the front and rear surfaces of the rectangular frame are smooth slopes.   The cloth board slippage prevention jig according to claim 1 or 2, wherein a notch space having an upper inner shape along the upper outer shape of the horizontal member is formed between the front and rear legs.   A fixing claw member provided with two guide grooves so as to be able to perform an arc motion between a position where it is latched on the lower side of the horizontal member and a position where it is detached from the lower side of the horizontal member with respect to either of the front and rear legs A first locking portion for holding the holding member at a position where the fixing claw member is locked to the lower side of the horizontal member, and a fixing claw member. The cloth board shift according to any one of claims 1 to 3, further comprising a second locking portion for holding the holding member at a position where the holding member is detached from the lower side of the horizontal member. Prevention jig. The inserter inserted into the gap between the inner surface of the rectangular opening and the clamp fitting located outside of the four clamp fittings has concave grooves on both end faces, and the concave grooves are opened to the opening. The fitting according to any one of claims 1 to 3, wherein the opening is fitted to an edge portion along the width direction of the portion so that the width of the opening can be adjusted. Fabric board slip prevention jig.