JP3103379U - L-shaped clamp - Google Patents

Abstract

An object of the present invention is to prevent the adjustment arm rod from swinging back and forth and left and right (with backlash), to keep the protection cap and the presser cap always in a straight line, and to sandwich the object at an appropriate position. An L-shaped clamp with improved accuracy is provided.
An anti-shake body is provided in which an end portion is fixed to an adjusting arm rod and the other end is slidably movable on a handle of the gripping rod. The arm rod 2 is slid and moved on the handle 10 while maintaining a right angle state with respect to the handle 10, and the facing relationship with the abutment 11 is held without swinging.
[Selection diagram] Fig. 1

Description

  The present invention relates to an L-shaped clamp, and more particularly to a technical field of an L-shaped clamp for holding and temporarily fixing an object for joining, fixing, and temporarily fixing a workpiece.

  A conventional general L-shaped clamp will be described with reference to the drawings of the present application. An L-shaped gripping rod 1 having a contact portion 11 in which the tip of a grip handle 10 is bent at a substantially right angle, and one end portion The grip handle 10 of the gripping rod 1 is inserted into 20, a slide fitting insertion hole 21 is formed to allow the grip handle 10 to slide, and a screw hole 23 in which the pressing rod 4 is screwed into the other end 22. The formed adjusting arm rod 2 is supported substantially at right angles to the handle 10.

Further, an L-shaped clamp provided with a spring 5 proposed for preventing the adjustment arm rod from slipping is disclosed in Japanese Utility Model Registration No. 3018739.
Registration No. 3018739

Since the slide fitting insertion hole 21 of the adjusting arm rod 2 in the conventional general L-shaped clamp is forged, its shape and size are not manufactured with high accuracy. Therefore, when the adjustment arm rod 2 is slid and the pressing rod 4 is screwed in to clamp the object, the adjustment arm rod 2 is liable to sway and shake easily.

That is, the protective cap 12 of the contact portion 11 of the L-shaped clamp abutting on the opposite side of the object 5 and the pressing cap 42 attached to the tip of the pressing rod 4 are shown by the dotted line a in FIGS. It is difficult to pinch the object 5 firmly by matching the position on the direction line connecting the two caps 12 and 42 with good pressing force as shown by.

In this respect, even in the case of the L-shaped clamp disclosed in the registered utility model publication No. 3018739, according to the description of the publication, the spring 5 having a U-shape in a side view is formed by the spring L of the fixed L-bar 1. The slide fixing bar 2 is pressed backward only by abutting only the inner surface, but there is no restriction in the left and right lateral directions. It has to be said that it is difficult to match the caps to be clamped in the linear direction.

Therefore, an object of the present invention is to effectively prevent the front and rear and left and right swings (with backlash) of the adjusting arm rod with a simple metal fitting, maintain the facing relationship between the adjusting arm rod and the abutting part, and thereby protect the abutting part. To provide an L-shaped clamp capable of always aligning a cap and a pressing cap of a pressing rod with a position on the same straight line to reliably sandwich an object at an appropriate position, thereby improving workability and accuracy. is there.

As a means for solving the above-mentioned problem, an L-shaped clamp according to the invention of the present invention is an L-shaped grip having a contact portion 11 in which a front end portion of a linear grip handle 10 is bent at a substantially right angle. A grip handle 10 of the gripping rod 1 is inserted into one end 20 of the gripping rod 1, and a slide fitting insertion hole 21 slidably movable on the grip handle 10 is formed. In an L-shaped clamp, the adjusting arm rod 2 having the screw hole 23 formed therein is supported at a substantially right angle to the grip handle 10,
One end 32 is fixed to the adjusting arm rod 2, and the other end 30 is provided with a shake preventing body 3 slidably disposed on the handle 10 of the gripping rod 1. Is characterized in that the grip handle 10 is slid and moved while maintaining a right angle state with respect to the grip handle 10, and the facing relationship with the abutting portion 11 is held without swinging.

  The L-shaped clamp according to the second aspect of the present invention is characterized in that the shake preventing body 3 is configured to be freely attached to the adjusting arm rod 2 with an L-shaped fitting.

  In the L-shaped clamp according to the third aspect of the present invention, one end 32 and the other end 30 of the vibration preventing body 3 are formed in U-shaped fitting pieces 33 and 31, respectively, and contact with the adjusting arm rod 2. The adjustment arm rod 2 slidably moves with the part 11 and the handle 10 and the U-shaped fitting piece 33 of the one end 32 of the vibration preventing body 3 is fitted to the adjustment arm rod 2. The U-shaped fitting piece 31 of the other end 30 is fitted to the grip handle 10 from the inside so as to be slidable.

The L-shaped clamp according to the first aspect of the present invention is provided with an anti-vibration body having one end fixed to the adjusting arm rod and the other end slidably disposed on the handle of the gripping rod. Therefore, the adjusting arm rod can smoothly slide along the handle without causing a swing (with backlash) to a desired position while maintaining a right angle state with respect to the handle. In other words, as a result of maintaining the facing state of the adjusting arm rod and the abutting part, the protective cap of the abutting part and the pressing cap of the pressing rod are always automatically aligned on the same straight line, and the object is firmly fixed at an appropriate position. , The workability is improved, and the work accuracy is improved.

According to the second aspect of the present invention, the anti-vibration body is configured to be freely attached to the adjustment arm rod by the L-shaped fitting, so that the L-shaped clamp can be attached to the existing L-shaped clamp regardless of the size or type. It is convenient to easily attach the anti-vibration body of the metal fitting, and contributes to cost reduction by eliminating the need to purchase a new L-shaped clamp.

According to the third aspect of the present invention, the U-shaped fitting piece at one end of the vibration preventing body is fitted to the adjusting arm rod to be firmly positioned and fixed, and the U-shaped fitting at the other end. Since the piece is slidably fitted to the handle from the inside, it is not only possible to swing in the front-rear direction, but also to horizontal shaking in the left-right direction. Is provided.

  The L-shaped clamp of the present invention according to claims 1 to 3 temporarily fixes and fixes an object for joining, fixing, temporary fixing, and the like of a workpiece, welding work, woodworking, machining, and welding. It is offered to do the like.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

The gripping rod 1 constituting the L-shaped clamp of this embodiment is formed by hot forging, and the end portion of a linear grip handle 10 having excellent durability is bent into a substantially right angle so that the gripping rod 1 has a predetermined length. It is formed in the part 11. A protective cap 12 having a flat upper surface is detachably provided at the tip of the abutting portion 11.

At one end 20 of the adjusting arm rod 2, a slide fitting insertion hole 21 having a hole slightly larger than the cross-sectional shape of the grip handle 10 is formed, and the grip handle 10 of the gripping rod 1 is inserted into the slide fitting insertion hole 21. When the handle 10 is inserted, the handle 10 is at a substantially right angle, and the handle 10 is slidably supported. The lengths of the adjusting arm rod 2 and the abutment 11 are substantially the same. The other end 22 of the adjusting arm rod 2 is formed in a screw hole 23 into which the pressing rod 4 can be screwed.

The pressing rod 4 has a rear half formed on the grip 43, a front half formed on the screw part 41, the screw part 41 is screwed into the screw hole 23 of the adjusting arm rod 2, and a pressing cap 42 is provided at the tip thereof. It is attached to be able to move freely. That is, by rotating the grip 43 of the pressing rod 4 forward, the workpiece 5 is sandwiched between the pressing cap 42 at the tip and the protective cap 12 of the abutting portion 11.

The anti-vibration body 3 is configured to be freely attached to the adjustment arm rod 2 with an L-shaped fitting as described in claim 2. Basically, one end 32 is fixed to the adjustment arm rod 2, and the other end 30 is slidably disposed on the handle 10 of the gripping rod 1.

  Specifically, one end 32 of the shake prevention body 3 is formed in a U-shaped fitting piece 33, and the other end 30 of the shake prevention body 3 is also formed in the U-shaped fitting piece 31. Is formed. The ends 32, 30 are integrally formed with an L-shaped connecting piece 36 so as to span the adjusting arm 2 and the handle 10 slidably moving between the adjusting arm 2 and the abutment 11. Is provided so as to be connected. The shape and material of the connecting piece 36 are not limited.

The U-shaped fitting piece 33 at one end 32 of the shake preventing body 3 is formed slightly longer, is fitted so as to surround the adjusting arm rod 2 and is positioned at an appropriate position. It is fastened and fixed with bolts 34 and nuts 35. On the other hand, the U-shaped fitting piece 31 of the other end portion 30 is slidable with respect to the inner surface 10a and the left and right side surfaces 10b, 10c of the grip handle 10 so as to be slidable. ) Are formed in such a size that they can be fitted from inside the handle 10 (see claim 3). That is, the U-shaped fitting piece 31 of the other end 30 is disposed so as to straddle the handle 10 and restrains the adjustment arm rod 2 from moving in the left-right direction (lateral direction).

Therefore, the adjusting arm rod 2 of the L-shaped clamp slides the grip handle 10 in the direction of the arrow b in the figure while maintaining the right angle state with respect to the grip handle 10, and the facing relationship with the abutting portion 11 fluctuates. Is kept without. Therefore, the protection cap 12 of the abutting portion 11 and the pressing cap 42 of the pressing rod 4 are always aligned with the position on the direction line a where the pressing force is good, and the workpiece (object) 5 is firmly and securely sandwiched without displacement. Work accuracy can be improved.

It is the front view which showed the L-shaped clamp.

FIG. 7 is a perspective view of a different embodiment of the L-clamp.

It is the front view which showed the different embodiment of the L-shaped clamp.

Explanation of reference numerals

REFERENCE SIGNS LIST 1 gripping rod 10 grip handle 11 abutment 12 protective cap 2 adjusting arm rod 20 one end 21 slide fitting insertion hole 22 other end 23 screw hole 3 anti-sway body 30 other end 31 U-shaped fitting piece 32 one end 33 U-shaped fitting piece 4 Pressing rod 5 Workpiece (object)

Claims (3)

An L-shaped gripping rod having a contact portion having a straight bent handle with a distal end bent at a substantially right angle, and the grip handle of the gripping rod is inserted into one end and the grip handle is slidably movable. An L-shaped clamp, in which an adjustable arm rod in which a simple slide fitting insertion hole is formed and a screw hole in which a pressing rod is screwed in at the other end is formed is supported substantially at right angles to the grip handle,
One end is fixed to the adjusting arm rod, and the other end is provided with a vibration preventing body slidably disposed on the grip handle of the gripping rod, and the adjusting arm rod is at a right angle to the grip handle. An L-shaped clamp characterized in that the grip handle is slid and moved while maintaining the condition, and the facing relationship with the abutment portion is held without swinging.   The L-shaped clamp according to claim 1, wherein the shake preventing member is configured to be freely attached to the adjusting arm rod by an L-shaped fitting.   One end and the other end of the shake prevention member are formed in U-shaped fitting pieces, respectively, and are slidably moved between the adjustment arm rod and the abutting part, and are arranged over the grip arm and the handle. The U-shaped fitting piece at one end of the vibration preventing body is fitted and fixed to the adjusting arm rod, and the U-shaped fitting piece at the other end is slidably movable with respect to the grip handle. The L-shaped clamp according to claim 1, wherein the L-shaped clamp is fitted from one side.

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