JP4777297B2 - Clamping device and jig for right angle joint - Google Patents

Description

  The present invention relates to a clamping device and a jig suitable for an operation for joining two plate materials at right angles in a DIY carpentry or the like.

For example, when two plates are joined in an L-shape by Do-it-yourself, one plate is set up vertically, the other plate is set up horizontally, and one end thereof is placed on the vertical upper end, and a nail is driven. Fix both. At this time, the other end of the horizontal plate can be supported by a support having the same height as the vertical plate. Alternatively, if there is an assistant in addition to the worker, it can be supported. However, when there is no such support and there are no assistants, nailing or the like must be performed while holding the hammer with one hand and supporting the two plates with the other hand. Therefore, it is not easy for an unskilled worker to join two plates at a right angle. Moreover, the two plates are likely to be displaced during nailing, and it is not easy to ensure assembly accuracy.
Patent Document 1 describes a device that clamps two plates at an angle by combining two clamps. One of the two clamps has a flat body, a clamper is provided at one end of the body, and a seat is provided at the center. The body extends greatly from the seat portion to the opposite side of the clamper, and the other clamp is disposed at the extended end portion.
JP 2004-036709 (FIG. 9)

  The clamping device described in Patent Document 1 requires at least one of the clamps to be a dedicated product with an extended end, and the product cost is high.

In order to solve the above problems, the present invention is an apparatus for clamping a first plate and a second plate to be joined at right angles,
(A) A C-type clamp having a C-type body, a seat portion provided at one end of the body, and a clamper provided at the other end of the body so as to be able to approach and separate from the seat portion. A first clamp and a second clamp,
(B) a jig;
And the jig is
A first surface to which the first plate material is to be attached;
A second surface that is orthogonal to the first surface and to which the second plate material is to be attached;
A first mounting portion that detachably mounts the sheet portion of the first clamp so that the clamper of the first clamp faces the first surface;
A second mounting portion that detachably mounts the sheet portion of the second clamp so that the clamper of the second clamp faces the second surface;
It is characterized by including.
According to this clamping device, the first plate can be held between the first surface and the clamper of the first clamp, and the second plate can be held at a right angle to the first plate. It can be held between the clamper of the second clamp. As a result, when the two plate members are joined by nailing or screwing, the two plate members can be prevented from shifting, and the two plate members can be easily and accurately assembled at right angles by one operator. Moreover, a general-purpose commercial product can be used for the clamp, the jig can have a simple structure, and the product cost can be reduced.

The present invention includes a C-type clamp having a C-type body, a seat portion provided at one end portion of the body, and a clamper provided at the other end portion of the body so as to be able to approach and separate from the seat portion. A jig for holding the first plate and the second plate to be joined at right angles in cooperation with each of the first clamp and the second clamp,
A first base portion having a first surface to which the first plate material is to be attached;
A second base portion that is orthogonal to the first surface and has a second surface to which the second plate material is to be attached, and is connected to the first base portion;
A first mounting portion for detachably mounting the seat portion of the first clamp is provided on the back side of the first surface of the first base portion, and the first mounting portion in the mounting state by the first mounting portion. A clamper with one clamp faces the first surface,
A second mounting portion for detachably mounting the sheet portion of the second clamp is provided on the back side of the second surface of the second base portion, and in the mounting state by the second mounting portion, The clamper is configured to face the second surface.
As a result, the first plate member can be held between the first base portion and the clamper of the first clamp, and the second plate portion and the second base portion can be held at right angles to the first plate member. It can be held between the clamp and the clamper. Therefore, it is possible to prevent the two plate members from being displaced during joining such as nailing, and the two plate members can be easily and accurately assembled at right angles by one operator. In addition, a general-purpose commercial product can be used as the clamp, the jig itself can have a simple structure, and the product cost can be reduced.

The first mounting portion holds a first holder capable of slidingly fitting the seat portion of the first clamp, and a first screw (fixing means) for pressing and fixing the seat portion fitted to the first holder. Are preferably included.
Thus, the first clamp can be firmly fixed to the first base portion, the first clamp can be prevented from wobbling when the first plate is clamped, and the first plate can be easily clamped. Further, by loosening the first screw, the first clamp can be easily attached to and detached from the first holder. It is preferable that the first holder can be fitted by sliding the sheet portion of the first clamp in parallel with the first surface.
Similarly, the second mounting portion has a second holder that can slide-fit the sheet portion of the second clamp, and a second screw that presses and fixes the sheet portion fitted to the second holder ( Fixing means).
Accordingly, the second clamp can be firmly fixed to the second base portion, the second clamp can be prevented from wobbling when the second plate is clamped, and the second plate can be easily clamped. Further, the second clamp can be easily attached to and detached from the second holder by loosening the second screw. It is preferable that the second holder can be fitted by sliding the sheet portion of the second clamp in parallel with the second surface.

In the mounting state by the first mounting portion, the body of the first clamp straddles either side of the first base portion in the direction parallel to either the first or second surface from the back side to the front side. Preferably they are arranged.
In the mounting state by the second mounting portion, the body of the second clamp straddles either side of the second base portion in a direction parallel to the first and second surfaces from the back side to the front side. Preferably they are arranged.
In the mounting state by the first mounting portion, the body of the first clamp is disposed so as to straddle one side of the first base portion in a direction parallel to both the first and second surfaces from the back side to the front side. In the mounting state by the second mounting portion, it is more preferable that the body of the second clamp is arranged so as to straddle the same side as the body of the first clamp in the second base portion from the back side to the front side. . Accordingly, the two clamps can be positioned in the same direction with respect to the first and second plate members, and the clamps can be prevented from interfering with a joining operation such as nailing.

An edge of the first base portion facing the side of the first clamp body is provided with a first convex edge portion that protrudes at an angle from the first surface, preferably at a right angle. Is preferred.
Thus, the first plate member can be easily positioned using the first convex edge as a stopper. Further, it is possible to prevent the first plate member from hitting the body of the first clamp. Further, the first base portion can be reinforced by the first convex edge portion, and the rigidity of the first base portion can be increased.
It is preferable that a second convex edge portion projecting from the second surface is provided on an edge of the second base portion facing a side straddling the body of the second clamp.
Accordingly, the second plate can be easily positioned using the second convex edge as a stopper. Further, it is possible to prevent the second plate material from hitting the body of the second clamp. Furthermore, the second base portion can be reinforced by the second convex edge portion, and the rigidity of the second base portion can be increased.
The side of the first base portion straddling the body of the first clamp and the side of the second base portion straddling the body of the second clamp are parallel to both the first and second surfaces. Preferably they are on the same side of the direction. Furthermore, a first convex edge portion projecting from the first surface is provided on an edge facing the one side of the first base portion (a side straddling the body of the first clamp), and the second base portion is provided. A second convex edge portion protruding from the second surface is provided on the same side edge of the portion, and the first convex edge portion and the second convex edge portion are arranged at the same position in the parallel direction. It is preferable.
Thereby, the side edge of a 1st board | plate material and a 2nd board | plate material can be arrange | equalized easily.

The second base portion may have an extending portion that extends from the first base portion to one side in a direction parallel to both the first and second surfaces (FIGS. 10 and 11). reference). The second mounting portion may be provided in the extending portion.
Accordingly, the first and second plate members can be assembled at right angles and clamped in a state where the second plate member is extended from the first plate member to the one side.

In a state in which the second clamp is mounted on the second mounting portion, the body of the second clamp obliquely intersects a virtual plane including the first surface when viewed from a direction orthogonal to the second surface. (See FIG. 12).
As a result, the body of the second clamp can escape to the outside from the edge of the second plate member on the side where the first plate member 91 is joined. Therefore, even if the second base portion is not provided with an extending portion, the first and second plate members are assembled at right angles and clamped in a state where the second plate member extends from the first plate member to the one side. Can do.

Another feature of the present invention relates to a contact attachment that is detachably provided on a clamp plate of a C-shaped clamp. The contact attachment has a contact surface larger than the contact area of the clamp plate with the clamp target, and the contact surface is in contact with the clamp target instead of the clamp plate. As a result, the pressing area of the clamp can be increased, and even when the clamp target is soft, it is possible to prevent the trace of the clamp from remaining on the surface.
In the right-angle clamp device, the clamp plate (plate material contact portion) at the end on the sheet portion side of the clamper of the first or second clamp is brought into contact with the first or second plate material larger than the clamp plate. The contact attachment which has the contact surface which should be provided may be provided so that attachment or detachment is possible. Thereby, the pressing area of the clamp can be increased, and even if the first or second plate material is soft, it is possible to prevent the trace of the clamp from remaining on the surface.
It is preferable that the contact attachment further includes a joining means that is detachably attached to the clamp plate. When the clamper or the clamp plate is a magnetic material (steel material or the like), the joining means may be a permanent magnet. The joining means may be an elastic ring that has elasticity and is pressed against the periphery of the clamp plate. The joining means may be an engaging claw.

  According to the present invention, two plate members can be held at right angles to each other. Therefore, not only can the two plate members be accurately positioned, but also the two plate members can be prevented from shifting during joining such as nailing. As a result, the two plate members can be easily and accurately assembled at right angles by one operator. In addition, a general-purpose commercial product can be used for the clamp, the jig can have a simple structure, and the product cost can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a right-angle clamping device 1. As shown in FIG. 1, the right-angle clamp device 1 includes a pair of clamps 10 and 10 and a right-angle joint jig 2. Each clamp 10 is a general-purpose, commercially available C-type clamp having a C-type body 11. A disc-shaped sheet portion 12 is provided at one end of the body 11, and a holder nut 13 is provided at the other end. A clamper 14 made of a male screw is attached to the holder nut 13. A clamp plate (plate material contact portion) 15 is provided at one end of the clamper 14, and a lever 16 is provided at the other end. By turning the lever 16, the clamper 14 approaches and separates from the sheet portion 12.
Hereinafter, when the two clamps 10 and 10 are distinguished from each other, one is referred to as a first clamp 10A and the other is referred to as a second clamp 10B. When the components of the first clamp 10A and the components of the second clamp 10B are distinguished from each other, the components of the first clamp 10A are marked with "A" and the components of the second clamp 10B are A symbol “B” is attached.

The right-angle joining jig 2 includes a base 20 and a pair of holders 31 and 32 provided on the base 20.
The base 20 is composed of an L-shaped angle steel material, and includes a first base portion 21 and a second base portion 22 that is connected to the first base portion 21 at a right angle. The first base portion 21 is directed horizontally, for example, and the second base portion 22 is directed vertically, for example.
A front side surface facing the upper side of the first base portion 21 constitutes a first surface 21a. The front side surface facing the outside of the second base portion 22 constitutes a second surface 22a. The first surface 21a and the second surface 22a are facing away from each other at a right angle.

  An edge plate 23 is provided at the rear edge of the base 20. The edge plate 23 is composed of an L-shaped flat steel plate and has a first convex edge portion 231 and a second convex edge portion 232 that are orthogonal to each other. The first convex edge portion 231 protrudes from the first surface 21 a at a right angle and extends along the rear end edge of the first base portion 21. The second convex edge portion 232 protrudes from the second surface 22 a at a right angle and extends along the rear edge of the second base portion 22. The 1st convex edge part 231 and the 2nd convex edge part 232 are located on the same perpendicular plane orthogonal to the front-back direction. That is, the first and second convex edge portions 231 and 232 are disposed at the same position in a direction parallel to both the first surface 21a and the second surface 22a.

  As shown in FIGS. 2 and 3, a first holder 31 is provided on the back side of the first base portion 21. The first holder 31 has a rectangular thick plate shape. The left and right end portions of the first holder 31 are brought into contact with the back surface of the first base portion 21 and are welded. Thus, the first holder 31 is fixed to the base 20 integrally. A shallow and wide sheet fitting recess 31 a is formed on the inner surface of the first holder 31 (the surface facing the first base portion 21). The front end of the sheet fitting recess 31a (the lower side in FIG. 2, the front side in FIG. 3) reaches the front end surface of the first holder 31, and the rear end (the upper side in FIG. 2, the back side in FIG. 3) The rear end surface of the first holder 31 is reached.

  A cut 31 b is formed in the left and right center of the first holder 31. The cut 31b extends forward from the rear end surface (lower in FIG. 2) of the first holder 31. The cut 31b penetrates the first holder 31 in the thickness direction and continues to the sheet fitting recess 31a. As shown in FIG. 3, the first holder 31 thus has a cross-sectional shape in which a pair of claws are opposed to each other.

  A sheet side end of the first clamp 10 </ b> A is detachably fitted to the first holder 31. That is, the sheet portion 12 </ b> A of the first clamp 10 </ b> A is inserted and fitted into the sheet fitting recess 31 a of the first holder 31 from the rear side. Further, the sheet side end portion of the body 11A is fitted into the cut 31b from the rear side. As shown in FIG. 3, in this fitted state, the body 11A straddles the rear side of the first base portion 21 (one side parallel to both the first surface 21a and the second surface 22a) up and down. Is arranged. Further, the clamper 14A is opposed to the substantially central portion of the first surface 21a.

As shown in FIG. 3, a pair of screw holes 31 c are formed on both sides of the notch 31 b of the first holder 31. Screws 41 are respectively screwed into these screw holes 31c. The screw 41 holds the sheet portion 12A of the first clamp 10A, and is firmly fixed to the right angle joining jig 2.
The screw 41 may be screwed into only one of the pair of screw holes 31c. In this case, it is preferable to screw the screw 41 only into the screw hole 31c on the side far from the second base portion 22 from the viewpoint of ease of screwing work.
A first mounting portion 51 is configured by the first holder 31 and the screw 41.

  Similarly, a second holder 32 is provided on the back side of the second base portion 22. The second holder 32 has the same configuration as that of the first holder 31, and upper and lower end portions are brought into contact with the back surface of the second base portion 22 to be welded and integrated, and an inner surface (facing the second base portion 22). A sheet fitting recess 32a is formed on the surface), and a notch 32b is formed in the center. As shown in FIG. 3, the second holder 32 has a cross-sectional shape in which a pair of claws are opposed to each other.

The sheet portion 12B of the second clamp 10B is inserted into the sheet fitting recess 32a from the rear side and is detachably fitted, and the sheet side end portion of the body 11B is fitted into the notch 32b from the rear side. In this fitted state, the clamper 14B faces the substantially central portion of the second surface 22a. The body 11B is disposed so as to straddle the rear side of the second base portion 22 (the same side as the body 11A along the direction parallel to both the first surface 21a and the second surface 22a). .
Therefore, the bodies 11 of the two clamps 10 </ b> A and 10 </ b> B are both arranged on the rear side of the jig 2.

A pair of screw holes 32c are formed on both sides of the notch 32b of the second holder 32. Screws 42 are screwed into these screw holes 32c. The sheet portion 12B of the second clamp 10B is pressed by the screw 42 and is firmly fixed to the right-angle joining jig 2.
The screw 42 may be screwed into only one of the pair of screw holes 32c. In this case, it is preferable to screw the screw 42 only into the screw hole 32c on the side far from the first base portion 21 from the viewpoint of ease of screwing work.
The second holder 32 and the screw 42 constitute a “second mounting portion 52”.

An assembly method and a usage method of the right-angle clamp device 1 configured as described above will be described.
The first clamp 10A is relatively slid forward (in parallel with the first surface 21a) from the rear side of the right-angle joint jig 2, the seat portion 12A is fitted into the fitting recess 31a, and the seat side end portion of the body 11A is fitted. Fit into the cut 31b. Then, the screw 41 is screwed into the screw hole 31 c of the first holder 31, and the first clamp 10 </ b> A is firmly fixed to the right-angle joint jig 2.

Similarly, the second clamp 10B is relatively slid forward (in parallel with the second surface 22a) from the rear side of the right-angle joint jig 2, and the seat portion 12B is fitted into the fitting recess 32a, so that the seat side of the body 11B The end is fitted into the cut 32b. Then, the screw 42 is screwed into the screw hole 32 c of the second holder 32, and the second clamp 10 </ b> B is firmly fixed to the right-angle joint jig 2.
Thereby, the assembly of the right-angle clamp device 1 is completed. It can be easily assembled by simply inserting the slide and tightening the screws. The bodies 11 of the two clamps 10 </ b> A and 10 </ b> B are both arranged so as to straddle the rear side of the jig 2.

The assembled right-angle clamp device 1 is used as an auxiliary instrument when two plate members 91 and 92 are joined at a right angle.
As shown in FIGS. 4 and 5, the first plate material 91 is applied to the first surface 21 a of the right-angle joining jig 2. At this time, the rear end surface of the first plate 91 may be directed to the first convex edge 231. Thus, the first plate member 91 can be easily positioned in the front-rear direction. Further, it is possible to prevent the first plate material 91 from hitting the body 11 of the first clamp 10A. Subsequently, the clamper 14A of the first clamp 10A is tightened, and the first plate 91 is sandwiched between the first surface 21a. Since the first clamp 10A is firmly fixed to the jig 2 and does not wobble, the operator can easily perform the tightening operation of the clamper 14A.

Similarly, the 2nd board | plate material 92 is applied to the 2nd surface 22a of the jig | tool 2 for a right angle joint. At this time, the rear end surface of the second plate member 92 may be directed to the second convex edge portion 232. Accordingly, the second plate member 92 can be easily positioned in the front-rear direction. In addition, the rear end surface of the second plate member 92 can be easily flush with the rear end surface of the first plate member 91. Further, it is possible to prevent the second plate member 92 from hitting the body 11 of the second clamp 10B.
Further, the end surface on the joint side of the second plate material 92 is abutted against the end portion of the first plate material 91. Subsequently, the clamper 14B of the second clamp 10B is tightened, and the second plate member 92 is sandwiched between the second surface 22a. Since the second clamp 10B is firmly fixed to the jig 2 and does not wobble, the operator can easily perform the tightening operation of the clamper 14B. As a result, the two plate members 91 and 92 can be firmly fixed in an L-shaped state.

  Thereafter, the second plate material 92 is erected vertically so that the first plate material 91 is positioned above the second plate material 92. Then, the nail 70 is hit with a hammer (not shown), and the first plate material 91 and the second plate material 92 are integrated. Since the first plate member 91 and the second plate member 92 are firmly clamped in an L shape by the right-angle clamp device 1, the nailing operation is performed while reliably preventing the first plate member 91 and the second plate member 92 from being displaced. Can do. In addition, since the two clamps 10A and 10B are arranged so as to straddle the rear side of the jig 2, it is possible to avoid the clamps 10A and 10B from interfering with the nail, and to make the nail operation more easily. Can be done. Accordingly, the first plate member 91 and the second plate member 92 can be easily and accurately joined at a right angle by one operator.

The right-angle clamp device 1 is a combination of two commercially available clamps 10A and 10B and a right-angle joint jig 2 having a simple structure, and can be configured at a very low cost. When the right-angle clamp apparatus 1 is not used, the clamp 10 can be easily detached from the right-angle joint jig 2 by loosening the screws 41 and 42. The removed clamp 10 can be used for other clamping applications. Thereby, the versatility of the clamp 10 can be ensured and the convenience can be improved.
The edge plate 23 provided at the rear end portion of the jig 2 also functions as a rib that reinforces the base 20, and can increase the rigidity of the jig 2.

Next, another embodiment of the present invention will be described. In the following embodiments, the same reference numerals are given to the drawings and the description thereof is omitted for the same configurations as those of the above-described embodiments.
6 to 8 show a second embodiment of the present invention. In the right-angle clamp device 1X according to this embodiment, the screws 41 and 42 for fixing the clamps 10A and 10B to the right-angle joining jig 2 are not provided. The clamps 10 </ b> A and 10 </ b> B are stably attached to the jig 2 only by sliding the sheet portion 12 into the fitting recesses 31 a and 32 a of the holders 31 and 32.
The first holder 31 alone constitutes a “first attachment portion”, and the second holder 32 alone constitutes a “second attachment portion”.

  If the first plate member 91 (not shown) is disposed between the first surface 21a of the jig 2 and the clamper 14A and the clamper 14A is tightened, the first base member 21 can be clamped together with the first plate member 91, The jig 2 and the first clamp 10A can be firmly fixed. Similarly, when the second plate member 92 (not shown) is disposed between the second surface 22a of the jig 2 and the clamper 14B and the clamper 14B is tightened, the second base member 22 is also mounted together with the second plate member 92. Clamping is possible, and the jig 2 and the second clamp 10B can be firmly fixed.

  As shown in FIG. 6, the 1st reinforcement plate 61 is pinched | interposed between the 1st holder 31 and the 1st base part 21 of the apparatus 1X. The first holder 31 and the first reinforcing plate 61 are integrated by screws 43. A recess 21 b is formed on the back surface of the first base portion 21. The first reinforcing plate 61 is accommodated in the recess 21b, and the first reinforcing plate 61 and the first base portion 21 are bonded with an adhesive. Similarly, a second reinforcing plate 62 is sandwiched between the second holder 32 and the second base portion 22. The second holder 32 and the second reinforcing plate 62 are integrated by screws 44. The second reinforcing plate 62 is housed in the recess 22b on the back surface of the second base portion 22 and is bonded to the second base portion 22 with an adhesive.

The corners of the holders 31 and 32 are chamfered.
As shown in FIG. 7, the rear end portions of the cuts 31 b and 32 b of the holders 31 and 32 are widened toward the rear end surfaces of the holders 31 and 32. This makes it easy to insert the sheet side end of the body 11 of the clamp 10.
As shown in FIG. 8, a triangular end plate 24 is provided at the front end of the base 20. The end plate 24 further increases the rigidity of the base 20, and the squareness is reliably maintained.

The means for coupling the first and second holders 31 and 32 to the base 20 is not limited to those that are difficult to separate such as welding (first embodiment) or adhesion (second embodiment). Easy coupling means may be used.
The holders 31 and 32 may be omitted, and the clamps 10A and 10B may be directly joined to the base portions 21 and 22. For example, in the right angle clamp device 1Y shown in FIG. 9, the screw hole 17a is formed in the sheet portion 12A of the first clamp 10A. The sheet portion 12A is directly applied to the back surface of the first base portion 21, and the screw 45 is screwed into the screw hole 17a, whereby the first clamp 10A is fixed to the first base portion 21. A first mounting portion 51 is configured by the back surface of the first base portion 21 and the screw 45.
Similarly, a screw hole 17b is formed in the sheet portion 12B of the second clamp 10B. The sheet part 12B is directly applied to the back surface of the second base part 22, and the screw 46 is screwed into the screw hole 17b, whereby the second clamp 10B is fixed to the second base part 22. A second mounting portion 52 is configured by the back surface of the second base portion 22 and the screw 46.

  10 and 11 show a right-angle clamp device 1A according to the fourth embodiment. In these drawings, the horizontally positioned second base portion 22 has a left side (first and second surfaces 21a, 22a) to the left of the first base portion 21 suspended from the front side (lower in FIG. 11). An extending portion 25 extending in a parallel direction (one side in the left and right in FIG. 11) is provided. The entire outer surface of the second base portion 22 including the extending portion 25 is a second surface 22a to which the second plate member 92 can be attached.

  A second mounting portion 52 is provided on the back side of the extending portion 25. The sheet portion 12B of the second clamp 10B is mounted on the second mounting portion 52. The body 11 </ b> B of the second clamp 10 </ b> B in the mounted state straddles the front edge of the extension portion 25 from the bottom to the top so as to be orthogonal to the front edge of the extension portion 25 in plan view.

A first convex edge portion 231 is provided on the left edge (extension portion side) of the first base portion 21.
On the other hand, the second base portion 22 is not provided with the convex edge portion 232 (FIG. 1).

According to the right-angle clamp device 1A, the first and second plate members 91 and 92 are moved in the state in which the second plate member 92 extends leftward from the first plate member 91 whose position is regulated by the first convex edge portion 231. It can be assembled by clamping at right angles and can be nailed in that state.
In this embodiment, the upper end portion of the first plate member 91 is applied to the front end surface of the second plate member 92 so that the upper end surface of the first plate member 91 and the upper surface of the second plate member 92 are flush with each other. However, instead of this, the lower surface of the second plate material 92 is applied to the upper end surface of the first plate material 91 so that the end surface on the near side of the second plate material 92 and the front surface of the first plate material 91 are flush with each other. You may decide.
The body 11B of the second clamp 10B is arranged so as to straddle the edge on the near side of the extending portion 25. Instead, the edge on the other side (the upper side in FIG. 11) of the second base portion 22 is used. It may be arrange | positioned so that it may straddle, and may be arrange | positioned so that the left end edge (end edge of the extension direction side) of the extension part 25 may be straddled.

  FIG. 12 shows a right-angle clamp device 1B according to the fifth embodiment. In this right-angle clamp device 1B, the second mounting portion 52 is attached to the back surface of the horizontal second base portion 22 at an angle of, for example, approximately 45 degrees. The virtual body 11B of the second clamp 10B mounted on the second mounting portion 52 includes a first surface 21a that is orthogonal to the paper surface of FIG. 12 when viewed in a plan view, that is, from a direction orthogonal to the second base portion 22. It intersects with the vertical plane PL obliquely, for example, at approximately 45 degrees. Moreover, the body 11B intersects the virtual vertical plane PL in the vicinity of the left front corner 20c of the second base portion 22 in plan view, and straddles the corner 20c from the bottom to the top (from the back side to the front side). Yes. An inner edge 111a of the vertical portion 111 of the body 11B is positioned on the near side (lower in FIG. 12) with respect to the virtual vertical plane PL.

  The first base portion 21 is suspended from the front side of the second base portion 22. The body 11 </ b> A of the first clamp 10 </ b> A straddles the lower side (the back of the page in FIG. 12) of the left end edge (the edge on the side continuous with the corner part 20 c) of the first base part 21.

A first convex edge portion 231 is provided on the left end edge of the first base portion 21 (the edge on the side continuous with the corner portion 20c). The left end surface of the first plate material 91 orthogonal to the paper surface of FIG. 12 is applied to the first convex edge portion 231.
On the other hand, the second base portion 22 is not provided with the convex edge portion 232 (FIG. 1). The second plate portion 92 is placed on the second base portion 22, and the end surface on the near side (lower side in FIG. 12) is brought into contact with the upper end portion (the front side in FIG. 12) of the first plate material 91. Yes. The front end surface of the second plate portion 92 is located on the virtual plane PL.

  According to the right-angle clamp device 1B, the vertical portion 111 of the body 11B can escape from the front edge of the second plate member 92 to the near side by making the body 11B of the second clamp 10B oblique. Accordingly, the second plate member 92 is extended to the left side from the first plate member 91 in the same manner as in the fourth embodiment, without providing the extended portion 25 (FIGS. 10 and 11) on the second base portion 22. In this state, the first and second plate members 91 and 92 can be assembled at right angles and clamped.

  13 and 14 show an embodiment related to the improvement of the clamp structure. As shown in FIG. 14B, the clamp plate 15 of the clamp 10 generally has a conical shape that is substantially flat. Therefore, when the clamp plate 15 is pressed directly against the plate members 91 and 92, only the peripheral portion of the clamp plate 15 contacts the plate members 91 and 92. Since clamp pressure acts on this narrow contact portion, when the plate members 91 and 92 are made of a relatively soft material such as wood or resin, a clamp mark (dent) tends to remain on the surface.

Therefore, in this embodiment, as shown in FIG. 13, a contact attachment 80 is detachably provided on the clamp plate (plate material contact portion) 15 of the clamp 10. The contact attachment 80 includes an attachment main body 81 and a joining means 82.
As shown in FIGS. 13 and 14A, the attachment main body 81 is made of resin and has a disk shape larger in diameter than the clamp plate 15. The material of the attachment main body 81 may be nonmagnetic, and a nonmagnetic metal may be used instead of resin. The bottom surface (lower surface in FIG. 13) of the attachment main body 81 is substantially flat as a whole. The bottom surface of the attachment body 81 may be subjected to a process such as roughening to increase the frictional resistance with the plate members 91 and 92.

  A mounting recess 81 a is formed on the upper surface of the attachment body 81. As shown in FIGS. 2B and 2C, the clamp plate 15 is accommodated in the mounting recess 81a so as to be freely inserted and removed.

  A small piece 82 made of a permanent magnet is embedded in the bottom of the attachment recess 81a of the attachment body 81 as a joining means with the clamp plate 15. As shown in FIG. 14C, when the clamp plate 15 is inserted into the mounting recess 81 a, the contact attachment 80 is attached to the clamp plate 15 by the magnetic attraction between the piece 82, the metal clamper 14, and the clamp plate 15. It can be attached stably.

As shown in FIG. 13, in a state where the contact attachment 80 is mounted on the clamp plate 15, the bottom surface of the attachment main body 81 comes into contact with the plate material 91 (or 92). Therefore, the pressing area of the clamp can be sufficiently increased and the pressing force can be dispersed, rather than causing the clamp plate 15 to directly contact the plate material 91 (or 92). Thereby, even if the plate members 91 and 92 are made of a soft material such as wood or resin, it is possible to prevent the trace of the clamp from remaining on the surface.
Since the joining means of the abutment attachment 80 to the clamp plate 15 is composed of the magnet 82, the abutment attachment 80 can be easily detached from the clamp 10 after the clamp is used.

  FIG. 15 shows a modification of the means for joining the abutment attachment 80 to the clamp plate 15. As shown in FIG. 2A, this joining means is constituted by a ring 83 made of an elastic material such as rubber. The ring 83 is provided along the inner peripheral edge of the mounting recess 81a.

  As shown in FIG. 15B, when the contact attachment 80 is mounted on the clamp plate 15, the clamp plate 15 is accommodated in the mounting recess 81 a so as to be pushed into the ring 83 while elastically deforming the ring 83. . Then, the ring 83 is pressed against the periphery of the clamp plate 15 due to its elasticity, and is caught on the front side surface of the clamp plate 15. As a result, the contact attachment 80 can be attached to the clamp plate 15.

  After the clamp is used, if the abutment attachment 80 is pulled away from the clamp plate 15, the ring 83 is elastically deformed and the joined state can be easily released.

  FIG. 16 shows another modified example of the means for joining the contact attachment 80 to the clamp plate 15. Engaging claws 84 projecting inward are provided on the opening side edge of the mounting recess 81a of the attachment body 81. The engaging claws 84 may have an annular shape over the entire circumference of the mounting recess 81a, and a plurality (for example, about three or four) may be provided at intervals in the circumferential direction.

When the contact attachment 80 is mounted on the clamp plate 15, the clamp plate 15 is stored in the mounting recess 81a if the engaging claw 84 is elastically deformed. Thereby, the engaging claw 84 is hooked on the front side surface of the clamp plate 15, and the clamp plate 15 with the contact attachment 8 is joined.
After the clamp is used, if the contact attachment 80 is pulled away from the clamp plate 15, the engagement claw 84 is elastically deformed, and the joined state can be easily released.

The present invention is not limited to the above embodiment, and various modifications can be made.
For example, in the above embodiment, the first plate member 91 and the second plate member 92 are assembled in an L shape, but the present right angle clamp device and the right angle joint jig can also be applied to a T shape.
The unique configurations of the above embodiments may be combined with each other.
Each component of the jig 2 is preferably made of metal from the viewpoint of securing rigidity, but may be made of resin.
The material of the plate members 91 and 92 is not limited and may be wood, resin, or metal.
The joining means between the plate members 91 and 92 is not limited to nailing, and may be screws, screws, bolts, or via brackets such as angle members, and a combination of these and an adhesive. There may be only an adhesive agent, welding, welding, or fusion.
In the first embodiment, only one of the first convex edge 231 and the second convex edge 232 may be provided, and the other may be omitted.
The contact attachment 80 of FIGS. 13 to 16 is not limited to the right-angle clamp device 1 of the first embodiment, but can be applied to the right-angle clamp devices 1A, 1B, 1X, and 1Y of other embodiments, and further, the clamp plate 15 As long as it has (plate material contact part), it is not restricted to a right-angle clamp apparatus, It can apply to various clamp apparatuses.

It is an exploded perspective view of the right angle clamp device concerning a 1st embodiment of the present invention. It is a bottom view shown in the state where the right angle clamp device was assembled. It is front sectional drawing of the said right angle clamp apparatus which follows the III-III line of FIG. It is front sectional drawing which shows the state which joins two board | plate materials at a right angle with the said right angle clamp apparatus along the IV-IV line of FIG. It is side surface sectional drawing which shows the state which joins two board | plate materials at a right angle with the said right angle clamp apparatus along the VV line of FIG. It is front sectional drawing which shows the right angle clamp apparatus which concerns on 2nd Embodiment of this invention along the VI-VI line of FIG. It is a bottom sectional view showing the right angle clamp device concerning the above-mentioned 2nd embodiment along the VII-VII line of Drawing 6. It is a perspective view of the jig for right angle joining concerning the 2nd embodiment of the above. It is a front sectional view of a right angle clamp device concerning a 3rd embodiment of the present invention. It is a perspective view of the right angle clamp device concerning a 4th embodiment of the present invention. It is a top view of the right angle clamp device concerning the above-mentioned 4th embodiment. It is a top view of the right angle clamp device concerning a 5th embodiment of the present invention. It is a front view of the right angle clamp device which showed the modification concerning the improvement structure of a clamp, and equipped with the contact attachment. (A) is a top view of the above-mentioned contact attachment, (b) is a front sectional view in the separation state of the above-mentioned contact attachment and a clamp plate of a clamp, (c) is the above-mentioned contact attachment and It is front sectional drawing in the assembly state with the clamp pan of a clamp. The modification of the joining means of the above-mentioned contact attachment is shown, (a) is a front sectional view in the separation state of the contact attachment and the clamp plate of the clamp, (b) is the clamp plate of the contact attachment and the clamp It is front sectional drawing in the assembly state. It is front sectional drawing which shows another modification of the joining means of the said contact attachment in the assembly state of an applicable contact attachment and the clamp pan of a clamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Right angle clamp apparatus 1A, 1B, 1X, 1Y Right angle clamp apparatus 10A 1st clamp 10B 2nd clamp 11 Body 12 Sheet | seat part 14 Clamper 15 Clamp tray 2 Right angle joining jig 21 1st base part 21a 1st surface 22 2nd Base portion 22a Second surface 231 First convex edge portion 232 Second convex edge portion 25 Extension portion 31 First holder 31a Fitting concave portion 32 Second holder 32a Fitting concave portion 41 Screw (first fixing means)
42 Screw (second fixing means)
51 First mounting portion 52 Second mounting portion 70 Nail 80 Abutment attachment 81 Attachment main body 82 Magnet piece (joining means)
83 Elastic ring (joining means)
84 engaging claws (joining means)
91 1st board | plate material 92 2nd board | plate material PL Virtual plane

Claims (8)

A device for clamping a first plate and a second plate to be joined at right angles,
(A) A C-type clamp having a C-type body, a seat portion provided at one end of the body, and a clamper provided at the other end of the body so as to be able to approach and separate from the seat portion. A first clamp and a second clamp,
(B) a jig;
And the jig is
A first surface to which the first plate material is to be attached;
A second surface that is orthogonal to the first surface and to which the second plate material is to be attached;
A first mounting portion that detachably mounts the sheet portion of the first clamp so that the clamper of the first clamp faces the first surface;
A second mounting portion that detachably mounts the sheet portion of the second clamp so that the clamper of the second clamp faces the second surface;
A right angle clamp device comprising: A first C-type clamp having a C-type body, a seat portion provided at one end of the body, and a clamper provided at the other end of the body so as to be close to and away from the seat portion. In cooperation with the clamp and the second clamp, a jig for holding the first plate and the second plate to be joined at right angles,
A first base portion having a first surface to which the first plate material is to be attached;
A second base portion that is orthogonal to the first surface and has a second surface to which the second plate material is to be attached, and is connected to the first base portion;
A first mounting portion for detachably mounting the seat portion of the first clamp is provided on the back side of the first surface of the first base portion, and the first mounting portion is in the mounted state by the first mounting portion. A clamper with one clamp faces the first surface,
A second mounting portion for detachably mounting the sheet portion of the second clamp is provided on the back side of the second surface of the second base portion, and in the mounting state by the second mounting portion, A right angle joining jig, wherein a clamper faces the second surface.   The first mounting portion includes a holder capable of slidingly fitting the seat portion of the first clamp, and a screw for pressing and fixing the seat portion fitted to the holder. The jig for right angle joining as described.   In a state where the seat portion of the first clamp is attached to the first attachment portion, the body of the first clamp has one side in a direction parallel to both the first and second surfaces of the first base portion. The jig for right angle joining according to claim 3, wherein the jig is arranged so as to straddle from the back side to the front side.   5. The right angle joint according to claim 4, wherein a first convex edge portion that protrudes at an angle from the first surface is provided on an edge of the first base portion facing the one side. 6. jig.   The second base portion has an extending portion that extends from the first base portion to one side in a direction parallel to the first and second surfaces, and the second mounting portion is attached to the extending portion. The jig for right angle joining according to any one of claims 2 to 5, wherein a portion is provided.   In a state in which the second clamp is mounted on the second mounting portion, the body of the second clamp obliquely intersects a virtual plane including the first surface when viewed from a direction orthogonal to the second surface. The jig for right angle joining according to any one of claims 2 to 5.   The clamp plate at the end on the sheet portion side of the clamper of the first or second clamp has a contact attachment having a contact surface that is larger than the clamp plate and should be contacted with the first or second plate member. The right angle clamp device according to claim 1, wherein the right angle clamp device is detachable.

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