JP2005224890A - Cutter for bumper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive cutter for a bumper without the occurrence of high temperature and malodor at the time of cutting a synthetic resin made bumper by which the synthetic resin made bumper can be inexpensively and easily cut. <P>SOLUTION: The cutter for a bumper has the following constitution. The tip part of a swiveller 10 having a cutting blade 15 is mounted to the tip part of a receiving blade 4 erected on a base 2 so as to be turnable. A handle part 11 is provided to the rear end of the swiveller 10. The cutter is characterized in that the cutting blade 15 is slidable in the blade length direction by the swivel of the swiveller 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a bumper cutter, and more particularly to a push-off type bumper cutter used when cutting a synthetic resin bumper of an automobile mainly in a small and medium automobile repair shop.

  Conventionally, there has been Patent Document 1 as a resin bumper crusher for vehicles. This crusher is provided with a plurality of blade attachment portions having a regular octagonal outer periphery in the longitudinal direction of two cylindrical shafts facing each other at a predetermined pitch, and 8 on each of the octagonal outer peripheral surfaces of each blade attachment portion. Attach two blades. The two shafts are at such a distance that their blades engage with each other and rotate in opposite directions. The bumper made of resin is pressed between the tip edge of the blade and the cylindrical outer periphery of the shaft facing the blade, and the bumper is inserted in the longitudinal direction at the side corners of both the blades facing each other. This bumper crusher is a large crusher dedicated to a dismantling company that crushes a large amount of resin bumpers and was not suitable for small and medium repair shops.

In a small and medium-sized repair shop, it is necessary to store, move, or transport the resin bumper until it is delivered to the dismantling company. Therefore, it was necessary to cut these bumpers to a size that was easy to handle, but it was not possible to cut them with a commercially available press cutter. There were no small and inexpensive plastic bumper cutters that could be used in these small and medium repair shops, and they were inevitably melted with a gas burner used for vehicle repairs.
Japanese Patent Laid-Open No. 2003-135989

  As mentioned above, when fusing a resin bumper with a gas burner, in addition to using an expensive high energy gas, the resin bumper generates high heat during combustion, the inside of the factory becomes hot, and a strange odor during resin combustion Therefore, the environment around the factory was adversely affected.

  An object of the present invention is to provide a low-cost bumper cutter that can easily cut a synthetic resin bumper at low cost without generating high temperature and bad odor when cutting the synthetic resin bumper.

  According to a first aspect of the present invention, there is provided a bumper cutter in which a tip of a rotating body having a second blade is rotatably attached to a tip of a first blade suspended from a base. One of the blade and the second blade of the rotating body is a cutting blade and the other is a receiving blade, and is a bumper cutter having a handle at the rear end of the rotating body, One of the first blade and the second blade of the rotating body is slidable in the length direction of the blade by the rotation of the rotating body.

  The bumper cutter according to claim 2 of the present invention is provided with a plurality of elongated holes provided in the longitudinal direction of the second blade and extending in the longitudinal direction of the blade, and the elongated holes provided in the rotating body. A plurality of shafts that are inserted through the locking member, a locking member that is provided at the tip of the rotating body and extends in a direction perpendicular to the length direction of the rotating body, the tip of the locking member, and the vicinity of the tip of the first blade And a link rod having one end rotatably attached to the shaft and the other end rotatably attached to the second blade of the rotating body. Yes.

  In the bumper cutter according to claim 3 of the present invention, the first blade is a receiving blade, the rear end portion of the receiving blade is gradually lowered toward the rear end, and the base has a leg at the lower portion. The rotating body is attached to the front end of the base, and the rotating body is grounded to the grounding surface when the rear end of the base is lifted.

  The bumper cutter according to the first aspect of the present invention is such that one of the first and second blades is a cutting blade and the other is a receiving blade, and is made of a tough synthetic resin between the first and second blades. When the rotating body is rotated and pressed, either the first blade or the second blade of the rotating body slides in the length direction of the blade. Can be easily cut.

  The bumper cutter having the above-described configuration is low in manufacturing cost, low in running cost, can be cut without generating a bad smell, and is optimal for small and medium-sized automobile repair shops.

  A bumper cutter according to a second aspect of the present invention includes a plurality of long holes provided in the length direction of the second blade, a plurality of shafts inserted through the long holes and provided in the rotating body, and the rotating blade. A locking member provided at the tip of the moving body, a shaft that rotatably connects the end of the locking member and the vicinity of the tip of the first blade, and one end rotatably attached to the shaft; Since the other end is rotatably attached to the second blade, the first blade can slide in the length direction of the blade when the rotating body is rotated. Therefore, the same effect as the bumper cutter of claim 1 can be obtained.

  The bumper cutter according to claim 3 of the present invention has a tilted or curved rear end portion in which the height of the rear end portion of the first or second blade gradually decreases toward the rear end. When the bumper made of synthetic resin is cut by rotating the moving body, the bumper is cut while sliding in the last step having the greatest resistance, so that the bumper cutting work becomes easy.

  Further, since the base has a leg at the lower part and a rotating body is attached to the front end of the base, the base can be easily moved by lifting the rear end of the bumper cutter.

  Hereinafter, the first embodiment of the present invention will be described with reference to the perspective view of FIG. 1, the partially cutaway essential portion enlarged perspective view of FIG. 2, and the partially cutaway principal portion enlarged perspective view of FIG. 3.

  A base 2 made up of ridges 3 arranged substantially vertically at a predetermined interval on the leg 1 is provided, and a rotating body (caster) 40 is attached to the tip of the base 2. When the bumper cutter is placed on a flat grounding surface, the rotating body 40 floats from the grounding surface. When the rear end of the bumper cutter is lifted up, the rotating body 40 reaches the grounding surface, and the rear end is lifted back and forth, left and right. The bumper cutter can be easily moved by pushing or pulling on it. (Leg 1 and base 2 are angled steel, but the material and shape are not limited.)

  Two L-shaped receiving blades 4 are juxtaposed substantially vertically at a predetermined interval on the opposite sides of the protruding ridges 3 on which the base 2 is arranged in parallel, and are fixed by bolts 41, welding or the like. The L-shaped receiving blade 4 is an inclined surface that has a cross section of a right angle or a slightly smaller angle than the right angle, and gradually decreases from the inner side to the outer side where the receiving blades 4 face each other.

  The main portion 4a, which is an intermediate portion of the L-shaped receiving blade 4, is substantially horizontal with respect to the blade length direction. The tip of the L-shaped receiving blade 4 has a plate-like projection 4b upward, and the rear end side 4c of the L-shaped receiving blade 4 is inclined or curved in order to gradually decrease rearward. 4 and the length is ½ or less of the base 2. A stopper 6 is erected in the extending direction of the rear end of the receiving blade 4. (Delete)

  A rotatable bowl-shaped rotating body 10 is provided at the tip of the receiving blade 4. The rotating body 10 has substantially the same length as the base 2 and has a handle portion 11 at the rear end. Locking members 13, 14, and 14 are attached at two positions in the middle of the tip of the rotating body 10. The locking members 13, 14, 14 are each composed of two plates fixed to both sides of the rotating body 10. The sharp cutting blade 15 attached to the rotating body 10 has three long holes 16 at the front end, the rear end, and the middle. When the sliding shaft 12 is inserted into these long holes 16 and both ends of the sliding shaft 12 are fixed to the two plates of the locking members 13, 14, 14, the cutting blade 15 is attached to the rotating body 10. become.

  In the illustrated embodiment, the three long holes 16 are arranged on one straight line, but each may be formed on a different straight line. However, the long holes should be arranged in parallel. With such a configuration, the cutting blade 15 is attached so as to be movable back and forth in the length direction of the rotating body 10 within the range of the length of the long hole 16.

  Of the plurality of locking members 13, 14, 14, the most advanced locking member 13 is formed larger than the other plurality of locking members 14. A lower end portion of the large locking member 13 and a tip end portion of the L-shaped receiving blade 4 are rotatably coupled by a rotation shaft 17.

  The cutting blade 15 and the receiving blade 4 are further coupled by a link rod 19. One end of the link rod 19 is rotatably connected to the central portion of the cutting blade 15 by a shaft 18, and the other end is rotatably attached to a plate-like protrusion 4 b of the L-shaped receiving blade 4 by a rotating shaft 17. It has been.

  A locked portion 7 is provided near the upper end of the stopper 6. The rotating body 10 is rotated and brought into contact with the top surface of the stopper 6, and the locking member 9 of the rotating body 10 is locked to the locked portion 7. The locking member 9 has a hook-shaped protrusion 8 at the tip. When the rotating body 10 comes into contact with the stopper 6, the locking member 9 of the rotating body 10 is rotated, and the hook-shaped protrusion 8 at the tip is locked to the locked portion 7 of the stopper 6.

  As described above, the bumper cutter having the above-described configuration is configured such that the sharp cutting blade 15 and the rotating body 10 are slidably attached to the sliding shaft 12 via the locking members 13, 14, and 14, and the cutting blade 15 and the receiving blade are mounted. 4 is rotatably attached by shafts 18 and 17 via a link rod 19, and the rotary body 10 and the receiving blade 4 are rotatably attached by a rotary shaft 17 via a locking member 13. Accordingly, as the handle portion 11 of the rotating body 10 is rotated and pushed down, the cutting blade 15 moves along the rotating body 10 within the length of the long hole 16 and advances between the receiving blades 4 arranged in parallel with the rotating body 10. As it enters and pulls up the handle 11, it returns to the original position while retracting backward.

  The blade can be cut well when it is cut while being advanced or retracted rather than simply being pressed, that is, when it is cut with a scissors. Articles sandwiched between the blades 4 are well cut.

  A synthetic resin bumper for an automobile cannot be cut easily by simply placing the bumper on a flat surface and cutting it with a sharp blade from above. In addition, it is difficult to cut the synthetic resin bumper between the cutting blades because the blade edges are engaged with each other. As described above, a synthetic resin bumper can be cut well when it is configured such that the parallel cross-sections are slightly smaller than a right angle or the cutting blade 15 is inserted between the receiving blades 4 having a right angle.

  In the above embodiment, the first blade suspended from the base is a receiving blade whose cross section is a right angle or slightly smaller than the right angle, and the second blade is a cutting blade that slides along the rotating body. However, the first blade is a cutting blade, and the second blade is an angle slightly smaller than a right angle or two receiving blades arranged in parallel, or the first blade is a base or a rotating body. Other combinations such as sliding along the base and fixing the second blade to the base or the rotating body may be used.

  The second embodiment shown in FIG. 4 will be described. In the description of this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and redundant description is omitted.

  As shown in the perspective view of FIG. 4, the cutting blade 31 is inserted between the two L-shaped receiving blades 21, 21. An arc-shaped hole 33 is formed in the cutting blade 31, and a shaft 32 is erected near the center of curvature of the arc-shaped hole 33. The cutting blade 31 shown in FIG. 4 is a double blade, but it may be a single blade.

  The receiving blade 21 has a plate-like protrusion 21b at the tip, a long hole 22 extending in the horizontal direction is drilled therein, and a shaft 32 of the cutting blade 31 passes therethrough and a nut 34 is screwed.

  The receiving blade 21 is inclined such that the inside facing the cutting blade 31 is high and slightly lower toward the opposite surface. The main portion 21 a of the L-shaped receiving blade 21 is substantially horizontal, and the rear end side 21 c is an inclined or curved receiving blade 21 that gradually decreases toward the rear. 2 or less.

  The plate-like protrusion 21 b of the receiving blade 21 has a hole at a position corresponding to the arc-shaped hole 33, and the shaft 23 is inserted therethrough. The shaft 23 passes through the arc-shaped hole 33, passes through the opposite plate-like protrusion 21 b, and is screwed with nuts 35 at both ends.

  In the bumper cutter having the above-described configuration, when the rotary body 10 is pushed down by grasping the handle portion 11, the shaft 32 of the cutting blade 31 slides in the distal direction along the horizontal long hole 22 and is cut. The arc-shaped hole 33 of the blade 31 slides obliquely downward along the shaft 23 of the receiving blade 21, the cutting blade 31 descends while sliding in the horizontal direction, and the rotating body 10 is at the rear end of the receiving blade 21. Stops in contact with the stopper 6.

  At this time, the article sandwiched between the receiving blade 21 and the cutting blade 31 is quickly cut by the cutting blade 31 that is pushed down while sliding in the horizontal direction.

  The bumper cutter of the present application has a cutting blade 31 and a receiving blade 21 whose cross section is a right angle or slightly smaller than a right angle, and either the cutting blade 31 or the receiving blade 21 is rotated, and the cutting blade 31 is cut. Any one of the blade 31 and the receiving blade 21 only needs to slide, and the combination and attachment of the components can be taken regardless of the combination and shape shown and described. In the above embodiment, the power is human power, but it can be electric power. Further, the receiving blade side may be a cutting blade, and the rotating body 10 side blade may be an obtuse angle or a receiving blade having a slightly smaller angle than a right angle.

  The press-cut cutter of the present invention facilitates storage and movement until a relatively small automobile repair shop passes it to a car dismantling specialist, so the cutting cost is low, and no odor is emitted during cutting. It can be used as a cutter that can cut the bumper small at low cost.

It is a perspective view which shows the cutter for bumpers of this invention. It is a partial notch principal part expansion perspective view which shows the cutter for bumpers of this invention. It is a partial notch principal part expansion perspective view which shows the cutter for bumpers of this invention. It is a perspective view which shows the Example from which the cutter for bumpers of this invention differs.

Explanation of symbols

2 Base 4 First blade (receiving blade)
DESCRIPTION OF SYMBOLS 10 Rotating body 11 Handle part 12 Sliding shaft 13 Locking member 15 2nd blade (cutting blade)
16 Long hole 17 Rotating shaft 18 Axis 19 Link rod

Claims (3)

A tip of a rotating body having a second blade is pivotally attached to a tip of a first blade suspended from the base, and the first blade of the base and the second blade of the rotating body are either One of which is a cutting blade and the other is a receiving blade, and a bumper cutter having a handle at the rear end of the rotating body,
A bumper cutter, wherein either one of the first blade suspended from the base and the second blade of the rotating body is slidable in the length direction of the blade by the rotation of the rotating body. . A plurality of elongated holes that are spaced apart in the length direction of the second blade and extend in the length direction of the blade;
A plurality of shafts provided in the rotating body and inserted through the long holes;
A locking member provided at a tip of the rotating body and extending in a direction perpendicular to the length direction of the rotating body;
A shaft that rotatably couples the tip of the locking member and the vicinity of the tip of the first blade;
A link rod having one end rotatably attached to the shaft and the other end rotatably attached to the second blade of the rotating body;
The bumper cutter according to claim 1, comprising:   The first blade is a receiving blade, the rear end of the receiving blade is gradually lowered toward the rear end, the base has a leg at the bottom, and a rotating body is attached to the front end of the base; The bumper cutter according to claim 1 or 2, wherein the rotating body contacts the ground surface when the rear end of the base is lifted.

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