JPH0321521Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention consists of an outer clamping member and an inner clamping member, and can easily, quickly, and reliably clamp various plate bodies such as floorboards and wallboards. The present invention relates to a plate clamping tool having a novel configuration that enables efficient formation of, for example, floor surfaces, wall surfaces, etc.

〔composition〕

The plate clamping tool 1 of the present invention consists of an outer clamping member 2 and an inner clamping member 3. The outer clamping member 2 has a cylindrical portion 5
An engaging flange 7 is provided on the outer periphery of one end 6, and a plurality of locking protrusions 10 extending over substantially the entire length of the cylindrical portion 5 are provided at intervals on the inner peripheral surface 9 of the cylindrical portion 5. On the other hand, the inner clamping member 3 is provided with an engaging flange 15 on the outer periphery of one end 13 of the hollow or solid insertion section 12, and on the outer circumferential surface 16 of the insertion section 12.
2 is fitted into the cylindrical portion 5, a plurality of chevron-shaped locking protrusions 21 extending in the circumferential direction are provided between adjacent locking protrusions 10, 10,
The locking protrusion 21 has a triangular cross section cut along a plane including the axis of the insertion portion 12, and
The height of the ridgeline is set so that it gradually decreases from the base end 19 toward the distal end 20 and becomes approximately zero at the distal end 20. Then, the insertion part 12 of the inner clamping member 3 is inserted into the cylindrical part 5 of the outer clamping member 2 with the plate body 4 in between, and the locking protrusion 21 is bitten into the locking protrusion 10. Therefore, it is characterized in that the plate 4 can be sandwiched between the two engaging flanges 7 and 15.

[Effect]

Therefore, the insertion part 12 of the inner clamping member 3 is inserted into the cylindrical part 5 of the outer clamping member 2 with the plate body 4 in between, and each locking protrusion row 32 is inserted between the adjacent locking protrusions 10, 10. Insert the engaging flanges 7 and 15 so that they are in the same position as the plate body 4.
When the inner clamping member 3 or the outer clamping member 2 is slightly twisted in the direction of rotation in which the locking protrusion 21 bites into the locking protrusion 10, the locking is achieved. The protrusion 21 bites into the locking protrusion 10, and the plate 4 is securely clamped by the inner and outer clamping members 3 and 2, and in this state, the inner and outer clamping members 3 and 2 cannot be removed. It becomes impossible.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings, taking as an example a case in which it is applied as a clamping tool for clamping floorboards made of wood wool cement boards or the like.

As shown in the figure, the plate clamping tool 1 of the present invention includes an outer clamping member 2 and an inner clamping member 3, and clamps a plate 4 by the cooperation of the two.

The outer clamping member 2 is provided with an engaging collar 7 on the outer periphery of one end (the upper end in this embodiment) 6 of a cylindrical cylindrical portion 5, and on the inner peripheral surface 9 of the cylindrical portion 5, a cylindrical portion 7 is provided. The four locking protrusions 10, 10, 10, 10 each having a triangular cross section and extending over approximately the entire length of the portion 5 are approximately 90 mm long.
It is provided with an angular pitch of degrees. Furthermore, the engaging tsuba 7
Locking holes 11, 11, into which a locking pin (not shown) of a rotating tool can be inserted, are bored at opposing positions.

The inner clamping member 3 is provided with an engaging flange 15 on the outer periphery of one end (lower end in this embodiment) of the cylindrical insertion portion 12.
6, one end 13 of the insertion portion 12 is positioned between the adjacent locking protrusions 10, 10 when the insertion portion 12 is inserted into the cylinder portion 5 (see FIG. 3). Locking protrusions 21 are provided in four stages, each having a mountain-shaped cross section that is twisted from one side to the other end 17 side and tapers from the base end 19 to the distal end 20. To explain the structure of the locking protrusion 21 more specifically, it has a triangular cross section cut along a plane including the axis of the insertion portion 12, and the height of the ridge line is equal to the height of the proximal end 19. It is set so that it gradually decreases from there toward the tip 20 and reaches approximately zero at the tip 20. The locking protrusions 21 are connected by a rotation stopper 22 that can engage with the locking protrusion 10 (see FIG. 2). Note that the locking protrusion 10 is designed so that the locking protrusion 21 can bite into the locking protrusion 10.
is made of a material (synthetic resin, metal, etc.) that is equivalent to or slightly softer than the locking projection 21, and the cross-sectional change of the locking projection 21, which becomes tapered, is similar to that of the locking projection 21. 21 is bitten into the locking protrusion 10, the resistance gradually increases, and by the required biting, the plate body 4 is firmly and reliably clamped, and the inner and outer clamping members 3 and 2 are prevented from coming off. is set to Also, on the inner circumferential surface 25 of the insertion portion 12, there is a screw rod 26 for adjusting the floor height.
A female threaded portion 27 is provided that can be screwed together.
Note that an insertion groove 29 is provided at the upper end of the screw rod 26 into which the tip of a driver is inserted.
Further, the engaging collar 15 of the inner clamping member 3 is also provided with locking holes 30, 30, as in the case of the outer clamping member 2.

Next, the operation of the plate clamping tool 1 according to this embodiment will be explained. That is, first, the outer clamping member 2 and the inner clamping member 3 are inserted into the through holes 31 bored in the thickness direction at predetermined locations of the board (floorboard) 4 from above and below, respectively. Each locking projection row 32, 32, 3
2 and 32 are positioned between the adjacent locking protrusions 10 and 10 (see FIG. 3),
The engaging collar 7 is attached to the upper surface 33 of the plate body 4, and the engaging collar 15
is brought into contact with the lower surface 35 of the plate (floorboard) 4. Next, the locking hole 1 provided in the engaging collar 7 or 15 of the outer clamping member 2 or the inner clamping member 3
1, 11 or the locking holes 30, 30, and by slightly twisting the outer clamping member 2 in the rotational direction F shown in FIG. 3, the locking protrusion The portion 21 extends from the tapered portion of the tip of the locking protrusion 1.
0, and in accordance with the biting, both the engaging flanges 7, 15 are moved inward, and the plate (floorboard) 4 is firmly clamped by the inner and outer clamping members 3, 2,
In this state, the inner and outer clamping members 3, 2 cannot be removed. Although the locking protrusion 21 itself has a rotation stopper function, in this embodiment, in particular, the locking protrusion 21 existing in the same row does not rotate at its base end 19... Because they are connected by the stopper 22,
When twisting the outer clamping member 2, even if the twisting angle becomes too large and the locking protrusion 21 completely passes through the locking protrusion 10, the rotation By engaging the stopper 22 with the locking protrusion 10, it is possible to prevent the inner and outer clamping members 3, 2 from coming off (see FIG. 2). Note that the threaded rod 26 may be screwed onto the inner clamping member 3 before or after the inner and outer clamping members 3 and 2 are integrated. Thereafter, the board (floorboard) 4 is laid with the threaded rods 26 as legs in a state that it is raised above the subfloor 39, and then the height of the threaded rods 26 is adjusted to obtain a desired floor surface.

Other embodiments In the plate clamping tool 1 of the present invention, the outer clamping member 2
are the locking protrusion 10 and the locking protrusion 2 of the inner clamping member 3
1, the material and shape of the locking protrusion 21 are as follows:
It is not limited to what is shown in the embodiment as long as it can be made to bite into 0. Also, the locking protrusion 21
may be formed in a twisted manner as shown in the above embodiment, or may be formed in a straight line parallel to the engaging collar 15. In addition, when the above-mentioned rotation stopper 22 is installed, the rotation stopper 22 can be used as a locking protrusion expanded from the base end 19 of the locking protrusion 21 or as a locking protrusion row 32. In some cases, it is formed as a locking protrusion provided between the proximal end portions 19, 19 of the adjacent locking protrusions 21, 21. Furthermore, the board clamping tool 1 of the present invention includes a clamping tool for clamping a board that is a wall board.
As a clamping tool that clamps and integrates a plurality of plates (in this case, the insertion portion 12 of the inner clamping member 3 may be formed as a column (solid)), etc.
It can be used as a clamping tool for clamping various plate bodies.

[Effect of idea]

The plate clamping tool of the present invention consists of an outer clamping member 2 having a locking protrusion 10 and an inner clamping member 3 having a locking protrusion 21 that bites into the locking protrusion 10.
To clamp the plate body 4, first, the adjacent locking protrusions 10,
In a state where the locking protrusion row 32 is located between 10,
Fitting the outer clamping members 3 and 2 together, both engaging collars 7 and 1
5 is brought into contact with the front and back surfaces of the plate body 4, and then the inner clamping member 3 or the outer clamping member 2 is slightly twisted to cause the locking protrusion 21 to bite into the locking protrusion 10. I can do it. Therefore, the fitting work of the inner and outer clamping members 3 and 2 can be carried out at once without the locking protrusion 10 and the locking protrusion 21 being any obstacle, and the inner and outer clamping members 3 Since the twisting motion of , 2 is small, the plate 4 can be simplified.
Can be quickly clamped. Furthermore, since the plate 4 is clamped by the locking protrusion 21 biting into the locking protrusion 10, the plate 4 is securely clamped. As shown in the embodiment, when the locking protrusion is formed in a twisted manner, as the locking protrusion bites into the locking protrusion, both the engaging flanges 7 and 15 are moved inward. As a result, the inner and outer clamping members 3, 2
The plates are firmly clamped together.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention;
Fig. 2 is a perspective view showing the engaged state of the detent stopper and the locking protrusion, Figs. It is a sectional view shown together with a state of use. 1... Plate clamping tool, 2... Outer clamping member, 3...
Inner clamping member, 4... Plate body, 5... Cylinder part, 7... Engaging collar, 10... Locking protrusion, 12... Insertion part, 15
... Engagement collar, 21 ... Locking protrusion.

Claims (1)

[Scope of utility model registration request] Consisting of an outer clamping member 2 and an inner clamping member 3, the outer clamping member 2 is provided with an engaging flange 7 on the outer periphery of one end 6 of the cylindrical part 5, and a cylindrical part on the inner circumferential surface 9 of the cylindrical part 5. A plurality of locking protrusions 10 extending over substantially the entire length of the portion 5 are provided at intervals, while the inner clamping member 3 has an engaging flange on the outer periphery of one end 13 of the hollow or solid insertion portion 12. 15, and on the outer circumferential surface 16 of the insertion portion 12, a chevron is provided on the outer circumferential surface 16 of the insertion portion 12, and is positioned between adjacent locking protrusions 10, 10 and extends in the circumferential direction when the insertion portion 12 is inserted into the cylindrical portion 5. The locking projection 21 has a triangular cross section cut along a plane including the axis of the insertion portion 12, and the height of the ridgeline is equal to or lower than the proximal end. Part 1
9 to the tip 20 gradually decreasing to the tip 2.
0, it is set to be approximately zero, and the insertion part 12 of the inner clamping member 3 is inserted into the cylindrical part 5 of the outer clamping member 2 with the plate body 4 in between, and the locking protrusion 21 A plate clamping tool characterized in that the plate 4 can be clamped between the two engaging flanges 7 and 15 by biting into the locking protrusion 10.