JPH0610165Y2 - Clamp - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention can be applied, for example, in a three-dimensional direction when grasping and pulling out a bumper or a fan, which is a part of a body that has been bitten inward in an automobile accident. It is related to a clamp that can be pulled out.

[Conventional technology]

Conventionally, as this type of clamp, there is, for example, the one previously filed by the present applicant as Japanese Utility Model Publication No. 59-24647. The clamp has a pair of main members each having a planar shape with their opening sides facing each other, and a connecting bolt is inserted into a through hole provided in a transverse shape at the center in the longitudinal direction thereof and protrudes to one outside of the main member. The nut is connected to the connecting bolt by screwing, the leading end of the main member is used as a bite portion, and a tapered gap is provided on the inner side of the rear end of the main member. The pulling ring is slidably sandwiched, and a hook attached to the tip of the pulling chain is hooked on the pulling ring to pull the pulling ring outward to tighten the bite part. Become.

Then, the hook at the tip of the tensioning chain that is horizontally extended from the tower-type repair machine that was established on the floor around the accident vehicle is hooked on the tow ring so that the concave portion of the body is in the direction in which the chain is pulled. I was withdrawing.

[Problems to be solved by the invention]

However, as the structure of automobiles has recently become more complicated,
Sometimes it is desired to pull out the concave part of the side surface of the car body in the vertical direction or in the direction parallel to the side surface, but since the clamp is bite almost at right angles to each side surface of the car and it can be pulled only in that direction. In this state, it was not possible to pull in the vertical direction or the direction parallel to the side surface. Also, when removing the clamp after repairing,
When the tow of the tow ring is loosened, the tightening force of the bite part becomes weaker, and it may come off and fall off the worker's leg, etc., resulting in injury.

[Means for Solving the Problems]

Therefore, in order to solve the above problems, the clamp of the present invention,
Two main members each having a substantially planar shape whose both ends are respectively bent inward are arranged so that their opening sides face each other, and through holes having the same central axis line are provided at substantially central portions in the longitudinal direction of the respective main members. In addition, in a clamp in which a nut is tightened from the outside by inserting a connecting bolt into each through hole and connecting the nuts from each other to form a bite between the tips of the main members, a screw hole is formed in the rear end bent portion of one of the main members. Then, an operation bolt, the tip of which abuts the inner surface of the other rear end bent portion, is screwed into the screw hole, and an engaging rod is projectingly provided on the outer surface of the at least one main member near the tip and the tip of the engaging rod is provided. The latch ring is integrally fixed to the above.

[Action]

With the thin plate that touches a part of the side of the body of the accident vehicle sandwiched between the clamp's bite parts and attached at a right angle to the side, tighten the nuts of the connecting bolts by hand, then tighten the operating bolts Expands the end side and narrows the tip side to exert a strong tightening force on the bite part.

The hook at the tip of the tension chain can be hooked on the hook ring and pulled to pull it upward or downward. Also, the hook at the tip of the tension chain can be hooked on the frame member and pulled in the direction parallel to the side surface of the body. be able to.

In this way, the clamp can be pulled in the three-dimensional direction without reducing the tightening force of the bite part.

〔Example〕

An embodiment of the clamp of the present invention will be described below with reference to the drawings. In the figure, reference numerals 1 and 1'indicate main members of a plane shape whose both ends are respectively bent inward. The main members 1 and 1'are arranged so that their opening sides face each other, and are respectively arranged at substantially central portions in the longitudinal direction. Through holes 2 and 2 ′ having the same central axis line and being transverse are formed. The outer surfaces of the main members 1, 1'are orthogonal to the longitudinal direction of the main members 1, 1'on both sides of the through holes 2, 2 ', and the diameters of the through holes 2, 2'are the same. A cross section that matches and the top ridge passes through the center of the through holes 2 and 2 ' Protruding parts 3, 3'are provided.

Reference numeral 4 denotes a connecting bolt in which a bolt head 6 is integrally provided at one end of the shaft portion 5, and a screw groove 7 is formed on the other end side of the shaft portion 5. A nut 8 is screwed into the thread groove 7.

A connecting bolt 4 is provided in each through hole 2, 2'of the main member 1, 1 '.
The nut 8 is screwed into the thread groove 7 from the outside of the main member 1 to connect the nuts 8 to form a bite portion 9 between the tips of the main members 1 and 1 '. Further, a tapered gap portion 1b that narrows backward is provided inside the rear ends of both main members 1 and 1'to allow a traction ring (not shown) to be mounted as in the conventional case.

Then, a screw hole is formed in the bent portion 1a on the rear end side of the one main member 1.
The operation bolt 11 is screwed in a penetrating manner with the 10 being penetrated. A projection 11a is provided at the tip of the operation bolt 11, and a blind hole 12 is formed in the inner surface of the bent portion 1'a of the other main member 1 ', and the projection 11a at the tip of the operation bolt 11 is screwed into the blind hole 12. By fitting in, the two main members 1, 1 ′ are prevented from being displaced from each other in the vertical direction.

Further, an engaging rod 13 is provided so as to protrude from the outer surface of the main member 1 from the tip thereof, and a retaining ring 14 is integrally fixed to the tip of the engaging rod 13.

As shown in FIG. 2, the clamp of the present invention having the above-mentioned structure is configured such that the thin plate A of the iron plate, which is a part of the side surface of the body of the accident vehicle (not shown), is sandwiched between the bite parts 9 at right angles to the side surface. The nut 8 is tightened until the center of the inner surface of the bolt head 6 and the center of the inner surface of the nut 8 come into contact with the top ridges of the protrusions 3 and 3 '. Then, the operation bolt 11 is tightened, and the tip of the operation bolt 11 presses the inner surface of the bent portion 1'a of the other main member 1 ', so that the main member 1,
The rear end 1'is expanded and the lever side is narrowed by the lever action to exert a strong tightening force on the bite part 9. At this time, the bolt head 6
The inner surface of each of the nuts 8 and the nut 8 always has a protrusion 3 at its center.
The fulcrum can be determined by making line contact with the top ridgeline of 3 ', and even if it is sandwiched between the bite parts 9, there is no problem even if it is thin or thick, and strong tightening is always performed.

And if you want to pull the clamp laterally,
On the other hand, a hook (not shown) attached to the tip of the chain can be hooked and pulled, and when pulling in the opposite lateral direction, rotate the clamp 180 degrees and bite it. Just pull in the same way.

The one shown in FIG. 3 is designed so that it can be pulled in other directions as well, and an engaging rod 13 'is also projectingly provided on the outer surface near the tip of the main member 1'. Reference numeral 15 is a frame member formed in a planar U-shape, and through holes 16 and 16 are formed on both end sides of the frame member so as to face each other, and these through holes 16 and 16 are inserted into and engaged with both the engaging rods 13 and 13 ′. It is attached so as to be rotatable around the rods 13 and 13 '.

Accordingly, the clamp can be pulled upward or downward, and a hook (not shown) may be hooked on the frame member 15 and pulled while the frame member 15 is rotated in the direction to be pulled. Since the projections 11a at the tips of the operation bolts 11 are fitted in the blind holes 12, the two main members 1, 1'will not slip out.

In this way, the clamp can be firmly fixed only by tightening the operation bolt, and the clamp can be pulled in a free direction, and can be pulled vertically or parallel to the side surface of the automobile body for repair work. It works efficiently.

If the clamp is to be pulled backward, that is, in the direction perpendicular to the side surface as in the conventional case, the gap 1b on the rear end side of the main member is used.
Of course, if a pulling ring is attached to the hook and the hook at the tip of the pulling chain is hooked and pulled, the pulling can be performed in the same direction.

[Effect of device]

As described above, the clamp of the present invention can be repaired in a wide range and is convenient because it can be pulled in the vertical direction or in the direction parallel to the side even when it is occluded at a right angle to the side of the automobile body. A strong tightening force is applied to the occlusal portion only by tightening the bolts, so that the operation is easy and safe, and other beneficial effects are achieved.

[Brief description of drawings]

1 is a perspective view of a clamp, FIG. 2 is a sectional view of the same, and FIG. 3 is a sectional view of a clamp to which a frame member is attached. 1, 1 '... main member, 1a, 1a' ... bent portion, 2,
2 '... through hole, 4 ... connecting bolt, 8 ... nut, 9
…… Occlusion part, 10 …… Screw hole, 11 …… Operation bolt, 13,13 ′
...... Engagement rod, 14 …… Lock ring, 15 …… Frame member.

Claims (2)

[Scope of utility model registration request] 1. Two main members each having a substantially planar shape whose both ends are respectively bent inward are arranged such that their opening sides face each other, and each main member has the same central axis line shape in the substantially central portion in the longitudinal direction. In the clamp in which the through holes are provided and the connecting bolts are inserted into the respective through holes, the nuts are tightened from the outside to be connected to each other, and the tips of the respective main members serve as bite parts, the rear end bent portion of one of the main members is connected. A screw hole is formed through the screw hole, and an operation bolt having a tip abutting against the inner surface of the other rear end bent portion is screwed into the screw hole, and an engaging rod is projected on the outer surface of the at least one main member near the tip. A clamp having a retaining ring integrally fixed to the tip of the engaging rod. 2. The other main member is also provided with engaging rods projecting toward the front end thereof, and the distal ends of the planar U-shaped frame member are pivotally attached to both engaging rods, and the engaging rods are centered around the engaging rods. The clamp according to claim 1, wherein the frame member is rotatably attached.