JPH0219472Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention relates to a clamping tool used for clamping and clamping articles.

Conventionally, for example, when a cloth foundation concrete 1 is formed as shown in FIG. 12, and then a mortar 2 is applied to the upper edge of the cloth foundation concrete 1 for finishing, a ruler 3 is placed on one side of the upper edge of the cloth foundation concrete 1. At the same time, a backing plate 4 is arranged on the other side of the upper end, and the ruler 3 and the backing plate 4 are placed on the other side of the upper end.
The mortar 2 was applied along the ruler 3 after being clamped and clamped at predetermined intervals using a plurality of clamping tools.

However, conventional clamping tools used for this type of work have a threaded rod between a pair of clamping plates, and by rotating the threaded rod with a grip,
Since one clamping plate is configured to be moved closer to or away from the other clamping plate, the structure becomes extremely complicated and expensive, and the mounting of the clamping tool on the ruler 3 and backing plate 4 is difficult. The removal work cannot be done with one touch, and the attachment/detachment work is very troublesome and requires a lot of time.
In addition, since this conventional clamping tool is equipped with a threaded rod, if mortar adheres to the threaded rod when mortar 2 is applied, the threaded rod becomes unable to rotate.
It could not be used for long periods of time in this type of work.

Purpose of the invention This invention eliminates the deficiencies of the conventional clamping tools as described above, has a simple structure, can be manufactured at low cost, and can be extremely easily attached to and detached from the clamped member with a single touch operation. In addition, we have developed a clamping tool that can strongly clamp and clamp the member to be clamped in the installed state, and that does not cause the clamping tool to become unusable even if a small amount of mortar adheres to it, especially during mortar finishing work on concrete for concrete foundations. The purpose is to provide.

Structure of the invention In order to achieve the above-mentioned object, this invention has a construction part, a leg part bent at one end of the construction part and having a clamping part at the tip, and a leg part bent at the other end of the construction part. one gripping body consisting of an engaging portion that is
A pair of clamping bodies, each comprising a connecting part that is relatively rotatably connected to the construction part of the one clamping body, and a leg part that is bent from the connecting part and has a clamping part at its tip. , the pair of clamping bodies are relatively rotatably connected at their proximal ends so that the clamping parts at their distal ends correspond to each other so as to form a substantially portal shape, and the pair of clamping bodies are provided on one of the clamping bodies. The engaging part is
When the other clamping body is rotated relative to one clamping body, when the other clamping body is rotated beyond a dead point located on substantially the same plane as one clamping body, It is adapted to engage with a part of the other clamping body.

First Embodiment Hereinafter, the first embodiment of this invention will be described with reference to FIGS. 5 and 6, and these clamping bodies 5 and 6 are connected at their proximal ends so that they can rotate relative to each other so that the front view is substantially gate-shaped as shown in FIG.

First, the first clamping body 5 will be described in detail. The first clamping body 5 is provided with a construction portion 7 that extends linearly. A leg portion 8 is bent at one end of the construction portion 7, and a conical holding portion 9 is bent at the tip thereof. An engaging part 10 is formed at the other end of the construction part 7 by being bent toward the protruding direction of the leg part 8, and one locking part 11 is formed inside the bent part.

Next, the other second clamping body 6 will be described in detail. This second clamping body 6 is provided with a connecting part 12 that is connected to the construction part 7 of the first clamping body 5 so as to be relatively rotatable. . The connecting portion 12 includes a first fitting portion 13 having a substantially inverted U-shaped side surface that fits into the construction portion 7 of the first clamping body 5 from above as shown in the drawing, and a first fitting portion 13 that engages the first clamping body 5 from above. The second fitting part 14 has a substantially U-shaped side surface and fits into the construction part 7 from below while being engaged with the part 11 . A leg portion 15 is bent at the second fitting portion 14 of the coupling portion 12, and a conical holding portion 16 corresponding to the holding portion 9 of the first holding member 5 is bent at the tip thereof. There is.

In this embodiment, as is clear from FIG. 1, when this clamping tool is viewed from above, the engaging portion 10 of the first clamping body 5 is in an inclined state so as to be slightly biased forward than the construction portion 7. It stands out. As is clear from FIGS. 5 and 6, the distance L1 between the two clamping parts 9 and 16 is increased by rotating the second clamping body 6 backward relative to the first clamping body 5 (for example, , A position indicated by the chain line), when the second clamping body 6 is relatively rotated forward as indicated by the arrow X, the second clamping body 6 is located on almost the same vertical plane as the first clamping body 5. It is further rotated slightly forward beyond the dead point (position B indicated by the chain line) where the distance L2 between the two clamping parts 9 and 16 is the smallest, and the distance L3 between the two clamping parts 9 and 16 becomes slightly larger. At the point when the leg part 1 of the second clamping body 6 is bent (position C indicated by the solid line)
5 engages with the engaging part 10 of the first clamping body 5, and further forward rotation of the second clamping part 6 is prevented.

Therefore, as shown by the chain line position A in FIG.
When the second clamping body 6 is rotated rearward relative to the clamping body 5 and the distance L1 between the clamping parts 9 and 16 is increased, a first
The ruler 3 and the contact plate 4 at the upper end of the cloth foundation concrete 1 shown in Fig. 2 are brought into contact with each other, and the arrow Y is placed near the upper end joint part 12 of the second clamping body 6 using the clamping parts 9 and 16 as fulcrums.
When the backward twisting force shown in is applied, the second clamping body 6
A relative rotational force is generated in the direction of the arrow X with respect to the first clamping body 5.

As a result, the distance L1 between the two clamping parts 9 and 16 gradually decreases, and the second clamping part 6 is moved to the chain line position B.
When the second clamping body 6 reaches the dead point, the distance L2 becomes the smallest, and when the second clamping body 6 is further relatively rotated to the solid line position C and is engaged with the engaging portion 10 of the first clamping body 5, the distance L2 becomes the smallest. L3 becomes slightly larger. Therefore, in this state, relative rotation of the second clamping body 6 in the forward and backward directions is prevented, and due to the clamping force between the clamping parts 9 and 16, the distance is significantly narrowed from L1 to L3. A ruler 3 and a backing plate 4 are firmly clamped to both sides of the upper end of the concrete foundation 1.

In this way, the clamping parts 9, 16 of both clamping bodies 5, 6
The member to be held between the two holding parts 9 and 16 is arranged with a large distance therebetween, and the second holding member 6
The clamping tool can be attached to the member to be clamped by an extremely simple one-touch operation of applying twisting force near the upper end, and in the attached state, both clamping parts 9 and 1
The member to be clamped is strongly clamped and clamped between 6 and 6.

On the other hand, when removing this clamping tool from the member to be clamped, applying a forward twisting force in the opposite direction of arrow Y to the vicinity of the upper end joint 12 of the second clamping body 6 located at the solid line position C in FIG. A relative rotational force is generated in the second clamping body 6 in the direction opposite to the direction of the arrow X, contrary to that at the time of attachment. When the second clamping body 6 is rotated backward beyond the chain line position B of the dead point, both clamping parts 9 and 1
Since the distance between 6 and 6 is greatly increased from L2 to L1, this clamping tool can be easily removed from the clamped member with a single touch operation.

In addition, the clamping tool of this embodiment has a simple structure because it does not have a threaded rod, etc., and can be used for mortar finishing of cloth foundation concrete as described above, even if mortar adheres to a part of the clamping tool. , it can be used repeatedly over a long period of time without becoming ineffective.

Second Embodiment Next, a second embodiment of this invention will be described with reference to FIGS. 7 to 11. This embodiment differs from the first embodiment in the shape and configuration of the first clamping body 5.

That is, in this embodiment, the first clamping body 5
Two stepped portions are provided at the right end of the construction portion 7, and first and second locking portions 17, 18 are formed inside these stepped portions. The second clamping body 6 is configured to be able to move laterally along the construction part 7 of the first clamping body 5,
The second fitting portion 13 of the coupling portion 12 is selectively locked to the first or second locking portions 17, 18, and in this state, it is rotated relative to the first clamping body 5. It's summery. In addition, in this embodiment, as is clear from FIG. 7, when this clamping tool is viewed from above, the first
The clamping body 5 is bent at the right end of the construction part 7 via an inclined hanging part 19 so that the engaging part 10 of the clamping body 5 extends substantially parallel to the construction part 7 at a position slightly offset forward of the construction part 7. There is.

Therefore, as shown in FIG. 8, the second clamping body 6 is moved to the right on the construction part 7 of the first clamping body 5, and the second fitting part 14 of the second clamping body 6 is attached to the first clamping part. When the first engaging portion 17 of the body 5 is engaged, both the clamping portions 9 and 16
The reference interval between can be widened. Therefore, in this state, as in the case of the first embodiment described above, a twisting force is applied to the vicinity of the upper end of the second clamping body 6.
By rotating the second clamping body 6 relative to the first clamping body 5, this clamping tool can be easily attached to and detached from a thick member to be clamped with a one-touch operation, and the clamping tool can be easily attached to and detached from a thick member to be clamped in the attached state. It is possible to strongly clamp and clamp members.

Also, as shown in FIG. 11, the second clamping body 6 is
Move the clamping body 5 to the left on the construction part 7, and
The second fitting part 14 of the clamping body 6 is connected to the second fitting part 14 of the first clamping body 5.
By locking with the locking portion 18, the reference distance between the two clamping portions 9 and 16 can be narrowed. Therefore, if used in this state in the same manner as described above, it can be easily attached to and removed from a thin member to be clamped, and the member can be strongly clamped and clamped.

Note that this invention is not limited to the above-mentioned embodiments; for example, in the second embodiment, three or more locking parts are provided so that it can be adapted to three or more types of clamped members having different thicknesses. The present invention can be modified and implemented as desired, such as by using the gripping tool of this invention for a work different from the mortar finishing work of cloth foundation concrete described above.

Effects of the invention As detailed above, this invention has a simple structure and can be manufactured at low cost, and the member to be held is arranged between the two holding parts while increasing the distance between the holding parts of both holding bodies. At the same time, it can be installed and removed extremely easily by applying a twisting force near the upper end of the other clamping member with an extremely simple one-touch operation, and in the attached state, the member to be clamped can be strongly clamped and clamped. In addition, even if some mortar adheres, especially during mortar finishing work on cloth foundation concrete,
This has an excellent effect that there is no risk of it becoming unusable.

[Brief explanation of drawings]

Figures 1 to 6 show the clamping tool of the first embodiment of this invention, in which Figure 1 is a plan view, Figure 2 is a front view, Figure 3 is a right side view, and Figure 4 is a front view. 5 is a left side view, FIG. 5 is a right side view for explaining the action, and FIG. 6 is a plan view for explaining the action. Figures 7 to 11 show a clamping tool according to a second embodiment of this invention, in which Figure 7 is a plan view in one state of use, Figure 8 is a front view, and Figure 9 is a right side view. 10 is a left side view, and FIG. 11 is a front view in another state of use. FIG. 12 is a partial perspective view of a mortar finishing work portion of cloth foundation concrete showing an example of how the clamping tool is used. The first clamping body 5 as one clamping body, the second clamping body 6 as the other clamping body, leg parts 8, 15, clamping parts 9, 16, engaging part 10, coupling part 12, locking part 1
7,18.

Claims (1)

[Claims for Utility Model Registration] 1. An erected portion 7, a leg portion 8 which is bent at one end of the erected portion 7 and has a clamping portion 9 at its tip, and a retaining portion which is bent and formed at the other end of the erected portion 7. one clamping body 5 consisting of a joining part 10; a joint part 12 connected to the construction part 7 of the one clamping body 5 so as to be relatively rotatable; and the joint part 12.
A pair of clamping bodies 5, 6 are constituted by a leg part 15 which is bent and has a clamping part 16 at its tip, and the other clamping body 6, and the pair of clamping bodies 5, 6 are clamped at their tips. An engaging part 10 provided on one of the clamping bodies 5, wherein the parts 9 and 16 are connected to each other so as to be relatively rotatable at the base end so as to form a substantially gate shape in a state where they correspond to each other.
When the other clamping body 6 is rotated relative to one clamping body 5, the other clamping body 6 rotates beyond a dead point located on almost the same plane as one clamping body 5. A clamping tool that engages with a part of the other clamping body 6 when the clamping tool is moved. 2. The clamping tool according to claim 1, wherein each of the clamping bodies 5 and 6 is formed by bending a metal rod having a circular cross section. 3 A plurality of locking parts 17 and 18 are provided on the construction part 7 of the one clamping body 5, and the other clamping body 6 is provided with a plurality of locking parts 17 and 18.
Claims for registration of a utility model characterized in that the connecting portion 12 is selectively locked to the locking portions 17 and 18 and can be rotated relative to one of the clamping members 5. The clamping tool described in paragraph 1.