JP2006193946A - Work tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a work tool capable of preventing a joining member for joining a spoon part to a shank and a shank installation part formed at the spoon part from being damaged. <P>SOLUTION: This work tool comprises the spoon part, the shank, and the joining member formed at least one of the front side and rear side of the spoon part and joining the spoon part to the shank. In at least one of the joining members, a reinforcement part is formed in one row or a plurality of rows starting at the spoon installation part where the spoon part is installed to a shank installation part where the shank is installed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a work tool, and more particularly, to a work tool such as a scoop, an excavator, or a circular basket, which has higher durability than conventional ones and can be easily repaired when damaged.

  In general, work tools such as a scoop, an excavator, and a round paddle are connected to each other by a connecting pin or a rivet by inserting a handle into a handle mounting portion provided at one end of a hook portion for digging soil or the like. For example, as shown in FIG. 9, some conventional circular ridges include a heel part A, a handle B, and a connecting member C that connects the heel part A and the handle B.

  In addition, as shown in FIG. 10, in a scoop or an excavator, a handle tube insertion portion F is integrally formed by pressing at the base portion of the heel portion D, and one end of a steel pipe handle E is formed on the handle tube insertion portion F. What is inserted and welded is also common.

  Here, if the handle is simply inserted into the handle mounting portion and connected with a connecting pin or rivet, there may be a backlash between the handle mounting portion and the handle.

As a working tool that has solved such a problem, a working tool in which the tip of the handle is fitted to the tubular mounting portion of the main body having a tubular mounting portion on the taper and connected by a coupling pin, There has been proposed one provided with a synthetic resin coupling member fitted to the tubular mounting portion (Patent Document 1).
Japanese Unexamined Patent Publication No. 7-008001

  However, if the conventional round rice cake is subjected to a slight forcing work, the connecting member C starts to bend and bends at the position indicated by the two-dot chain line in FIG. 9, so it is inserted into the clay and pulled out. It could only be used for cutting work.

  And since the operation | work which fixes a collar part to the coupling member C is difficult for an amateur, when the coupling member C was damaged, it was common to repair by a manufacturer.

  However, it is not uncommon for a manufacturer to repair a damaged round paddle with a round-trip fare or repair cost, which is comparable to the cost of buying a new one.

  Therefore, most of the round rice cakes in which the coupling member C is broken are discarded as scrap iron even when the collar portion A is still usable.

  Also, in the scoop or shovel as shown in FIG. 10, since the handle E itself is thin, play is apt to occur between the handle tube insertion portion F and the tapered portion at the tip of the handle E. Further, since the handle tube insertion portion F is weak, the welded portion G is easily broken.

  The present invention has been made to solve the above problems, and is a working tool such as a scoop, an excavator, and a round basket, and a handle provided on a coupling member or a collar even if a little impossible lever operation is performed. An object of the present invention is to provide a device in which the mounting portion is not damaged or bent.

  The invention according to claim 1 includes a collar part, a handle, and a coupling member that is provided on at least one of the front side and the back side of the collar part and couples the collar part and the handle. In at least one of the above, the reinforcing member is formed in one or a plurality of rows from the heel mounting portion on which the heel portion is mounted to the handle mounting portion on which the handle is mounted on the coupling member. Concerning ingredients.

  In the working tool, since the strength of the coupling member is increased by providing the reinforcing portion, the coupling member is not damaged even if an unreasonable lever operation such as digging up the root of a tree is performed.

  The working tool of the present invention includes a scoop, an excavator, a circular basket and the like.

  The invention according to claim 2 relates to the working tool according to claim 1, wherein the reinforcing portion is a protruding portion protruding from a surface of the coupling member.

  A third aspect of the present invention relates to the working tool according to the first aspect, wherein the reinforcing portion is a recessed portion formed on a surface of the coupling member.

  In these working tools, the reinforcing portion can be easily formed by pressing, and the thickness of the coupling member is not increased in the portion of the reinforcing portion, so that the weight of the working tool as a whole is hardly increased. Therefore, the work is not burdened as compared with the conventional work tool.

  The invention according to claim 4 is provided with a collar part in which the collar body and the handle mounting part are integrally formed, and a handle mounted on the handle mounting part of the collar part, and the reinforcing part is the handle. The present invention relates to a work tool that is provided in one or more rows from a mounting portion to the collar body.

  In scoops and excavators, it is common to form the handle mounting part on the buttock with a press and attach the handle to this handle mounting part. However, if you perform excessive lever work such as digging up the root of the tree, the handle will be attached. The part may be bent or bent.

  However, in the working tool, since the handle mounting portion is reinforced by the reinforcing portion, the coupling member is not damaged even if an excessive lever operation such as digging up the root of the tree is performed.

  The invention according to claim 5 relates to the working tool according to claim 4, wherein the reinforcing portion is a protruding portion protruding from the surface of the handle mounting portion.

  A sixth aspect of the present invention relates to the working tool according to the fourth aspect, wherein the reinforcing portion is a recessed portion formed on a surface of the handle mounting portion.

  In these working tools, the reinforcing portion can be easily formed by pressing, and the thickness of the handle mounting portion is not increased in the portion of the reinforcing portion, so that the weight of the entire working tool is hardly increased. Therefore, the work is not burdened as compared with the conventional work tool.

  As described above, according to the present invention, it is possible to provide a working tool that does not damage or bend the coupling member or the handle mounting portion provided on the collar even if the lever operation is slightly unreasonable.

  1. Embodiment 1

  Hereinafter, a circular rod which is an example of the working tool of the present invention will be described.

  As illustrated in FIG. 1, the circular rod 10 according to the first embodiment includes a flange portion 12, a handle 14, and coupling members 16 and 17 that connect the flange portion 12 and the handle 14.

  The collar portion 12 is made of metal and has a thick plate shape, and the tip portion is formed in a tapered triangular shape. And it curves toward the surface side from the back surface side along the width direction, and is formed in a bowl shape as a whole.

  The base portion of the collar portion 12 is folded back from the front surface to the back surface for the purpose of reinforcement.

  As shown in FIG. 1 and (A) in FIG. 2, the coupling members 16 and 17 include the heel mounting portions 16A and 17A formed in a heart shape or a substantially isosceles triangle shape, and the heel mounting portions 16A and 16A, respectively. It has pattern mounting portions 16B and 17B that protrude integrally from the root portion of 17A and are formed in a semi-cylindrical shape.

  The coupling members 16 and 17 sandwich the heel part 12 from the front side and the back side, and the base part of the heel part 12 in the heel attachment parts 16A and 17A so that the handle attachment part 16B and the handle attachment part 17B constitute a cylinder. It is fixed with a rivet 13. On the other hand, the handle 14 is inserted into a cylindrical insertion portion constituted by the handle mounting portion 16B and the handle mounting portion 17B, and is fixed by a rivet 22.

  The coupling member 16 is provided with a reinforcing portion 18 from the handle mounting portion 16B to the heel mounting portion 16A, in other words, between the handle mounting portion 16B and the heel mounting portion 16A along the direction in which the handle 14 is inserted. It has been.

  Similarly, the coupling member 17 is also provided with a reinforcing portion 19 along the direction in which the handle 14 is inserted from the handle mounting portion 17B to the heel mounting portion 17A.

  As shown in (A) to (C) of FIG. 4, the reinforcing portion 18 may be any of a hollow round shape, a hollow triangular shape, and a solid triangular shape, and in FIG. As shown in (B), it may be a hollow rectangular shape or a solid rectangular shape. The same applies to the reinforcing portion 19.

  Among the reinforcing portions 18 and 19, hollow round shapes, hollow triangular shapes, solid triangular shapes, and hollow rectangular shapes can be formed integrally with the coupling members 16 and 17 by press working. If the reinforcing portions 18 and 19 are integrally formed with the coupling members 16 and 17 by pressing, the thickness of the reinforcing portion 18 and 19 does not increase particularly. It is almost the same as a round rice cake without a sword, and does not place an extra burden on the operator.

  The solid rectangular reinforcing portions 18 and 19 are formed by welding or brazing members formed separately from the coupling members 16 and 17 to the coupling members 16 and 17.

  The reinforcing portions 18 and 19 may be provided so as to be interrupted at the portion of the rivet 22 as shown in FIG. 2B, and between the two rivets 22 as shown in FIG. Without providing, it may be provided only between the side of the rivet 22 near the saddle mounting portions 16A and 17A and the saddle mounting portions 16A and 17A. In addition, as shown in FIG. 3A, characters may be raised, and as shown in FIG. 3B, beam-like shapes provided in two or more rows with rivets 22 sandwiched therebetween. It may be a protruding portion, or may be a wavy protruding portion as shown in FIG. 2 and 3, only a part of the handle 14 and the collar portion 12 is shown, and actually has a form as shown in FIG.

  Furthermore, as shown in FIG. 6, the reinforcing portion 18 may be a groove formed along the direction in which the handle 14 is inserted from the handle mounting portion 16 </ b> B to the heel mounting portion 16 </ b> A in the coupling member 16. The same applies to the reinforcing portion 19. 6A shows a side view of the circular rod 10 with grooves formed as the reinforcing portions 18 and 19, and FIG. 6B shows the vicinity of the coupling members 16 and 17 of the circular rod 10 from the front side. It is a top view which shows the place, and (C) is sectional drawing which cut | disconnected the said circular basket 10 in the plane orthogonal to the axis line of the handle | steering-wheel 14 in the part of the handle | steering-wheel mounting parts 16B and 17B. The groove-shaped reinforcing portions 18 and 19 are also preferable in that they can be easily formed on the coupling members 16 and 17 by pressing.

  As described above, the circular rod 10 according to the first embodiment is provided with the reinforcing portion in any of the coupling members 16 and 17 provided so as to sandwich the flange portion 12 from both sides. In the coupling member 16, a reinforcing portion 18 is provided from the handle mounting portion 16B to the heel mounting portion 16A, and in the coupling member 17, a reinforcing portion 19 is provided from the handle mounting portion 17B to the heel mounting portion 17A. Yes.

  Therefore, not only the work in which a force is applied from the front side surface to the back side surface of the flange part 12, but also a high durability for an operation in which a force is applied from the back surface side to the front surface side of the flange part 12. As shown, the coupling members 16 and 17 are not broken or bent at the portion between the handle mounting portions 16B and 17B and the heel mounting portions 16A and 17A.

  However, when an extremely difficult lever operation is performed, the handle 14 may be broken, but the handle 14 can be easily replaced even by an amateur.

  2. Embodiment 2

  Hereinafter, an excavator which is another example of the working tool of the present invention will be described.

  As shown in FIGS. 7A and 7B, the excavator 30 according to the second embodiment has a collar portion 32 and a handle 34. The handle 34 is inserted and fixed to the collar portion 32 at one end, and a grip portion 36 is attached to the other end. 7A is a plan view of the excavator 30, and FIG. 7B is a side view.

  The collar part 32 is a substantially rectangular thick plate-like member as a whole, and is integrally formed from the center of the root part of the collar part main body 32A and the collar part main body 32A formed in a substantially isosceles triangular shape with a tapered tip. And a protruding pattern mounting portion 32B. The buttock main body 32A is folded back from the back side to the front side at the base portion for reinforcement. On the other hand, the handle mounting portion 32 </ b> B is formed in an arc shape surrounding the tip of the handle 34.

  The handle 34 is fixed to the handle mounting portion 32B with rivets 40 and 42. As shown in FIG. 8, instead of the handle 34, a steel tube handle tube 44 is used. One end of the handle tube 44 is tapered and inserted into the handle mounting portion 32B and welded. A grip portion 36 may be attached to the other end.

  The handle mounting portion 32B is provided with a reinforcing portion 31 over the entire length of the handle mounting portion 32B along the direction in which the handle 34 is inserted. Examples of the reinforcing portion 31 include a hollow or solid ridge-like protruding portion or a groove-like recessed portion. Here, as described above, since the handle mounting portion 32B is formed integrally with the collar portion 32, it can be said that the reinforcing portion 31 is formed from the handle mounting portion 32B to the collar portion 32. .

  If the reinforcing portion 31 is a hollow ridge-like protrusion or groove, it is preferable in that it can be easily formed on the handle mounting portion 32B by pressing and does not lead to an increase in weight.

  In the excavator 30, since the reinforcing portion 31 is formed on the handle mounting portion 32B toward the collar portion 32, the root of the collar portion 32 can be obtained even if an excessive lever operation is performed as in the circular rod 10 of the first embodiment. The pattern mounting part 32B does not bend or bend at the part. In addition, in an excavator having the handle tube 44, the handle tube 44 is generally thin, but there is no backlash between the handle mounting portion 32B and welding to the handle mounting portion 32B. It will not break at the welded part.

1A and 1B are a plan view and a side view showing a configuration of a circular basket according to the first embodiment. FIG. 2 is a plan view of each table showing the coupling member of the circular basket according to the first embodiment and the vicinity thereof when viewed from the front side. FIG. 3 is a plan view of each table showing the coupling member of the round bag according to the first embodiment and the vicinity thereof when viewed from the front side. 4 is a cross-sectional view showing an example of a cross section obtained by cutting the reinforcing portion provided on the coupling member of the circular hook according to Embodiment 1 along the plane AA in FIG. 2. FIG. 5 is a cross-sectional view illustrating an example of a cross section obtained by cutting the reinforcing portion provided on the circular rod coupling member according to the first embodiment along the plane AA in FIG. 2. FIG. 6 is a side view, a plan view, and a cross-sectional view illustrating an example in which a recessed portion is formed as a reinforcing portion in the coupling member in the circular bag according to the first embodiment. FIG. 7 is a plan view and a side view showing the configuration of the excavator according to the second embodiment. FIG. 8 is a plan view and a side view showing another example of the shovel according to the second embodiment. FIG. 9 is a plan view showing an example of the configuration of a conventional round bowl. FIG. 10 is a plan view and a side view showing an example of a conventional shovel.

Explanation of symbols

10 circle rod 12 collar portion 14 handle 16 coupling member 16A collar mounting portion 16B handle mounting portion 17 coupling member 17A rod mounting portion 17B handle mounting portion 18 reinforcement portion 19 reinforcement portion 30 shovel 31 reinforcement portion 32 collar portion 32A collar portion main body 32B handle Mounting part 34

Claims (6)

A hook part, a handle, and a coupling member that is provided on at least one of the front side and the back side of the hook part and connects the hook part and the handle;
In at least one of the coupling members, a working tool is characterized in that reinforcing portions are formed in one or a plurality of rows from a heel mounting portion on which a heel portion is mounted to a handle mounting portion on which a handle is mounted. .   The work tool according to claim 1, wherein the reinforcing portion is a protruding portion protruding from a surface of the coupling member.   The work tool according to claim 1, wherein the reinforcing portion is a recessed portion formed on a surface of the coupling member. A heel part integrally formed with the buttock body and the handle mounting part, and a handle mounted on the handle mounting part of the buttocks,
The working tool, wherein the reinforcing portion is provided in one or a plurality of rows from the handle mounting portion to the collar body.   The work tool according to claim 4, wherein the reinforcing portion is a protruding portion protruding from a surface of the handle mounting portion.   The work tool according to claim 4, wherein the reinforcing portion is a recessed portion formed on a surface of the handle mounting portion.

Images