JP2006214224A - Shovel scoop - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shovel scoop, the weight of which is reduced. <P>SOLUTION: A handle 2 and a grip connector are each formed of an aluminum material, and joined together by aluminum welding. A solid cap material 6 for closing a leading-end opening of the handle 2 is press-fitted into the opening. The leading end of the handle 2, into which the cap material 6 is press-fitted, is fitted into an insertion part 5a of a spoon body 5, and the handle 2 and the spoon body 5 are fastened and fixed together in such a manner that one rivet 7 passes through the cap material 6. Thus, the aluminum handle 2 and the steel spoon body 5, which cannot be joined together by welding because they are different in material, can be easily and inexpensively joined together; a shovel using the aluminum material with a joint securing sufficient strength can be realized; and the weight can be reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an excavator scoop used for civil engineering work or gardening work.

As for the shovel scoop used for civil engineering work, the handle is generally made of wood or steel pipe. And when using a steel pipe as a handle, while inserting an internal tube in the junction part of a handle and a housing, the butted part of a handle and a housing is joined by welding (patent document 1).
Shokai Sho 55-21382

  However, the conventional shovel and scoop having a handle made of wood or steel pipe has a certain weight, and the demand for weight reduction is increasing in order to improve workability.

  In view of the above points, an object of the present invention is to provide a shovel scoop that is reduced in weight.

  In order to solve the above-mentioned problems, the present inventor pays attention to the fact that the weight can be reduced while maintaining the strength by using an aluminum material that has not been used for the handle, and the steel flange portion and the aluminum. Although it was impossible to weld the handle of the material, it was considered possible to join the handle of the steel and the handle of the aluminum by using the good formability of the aluminum material. That is, the shovel scoop according to claim 1 of the present invention includes a steel case subjected to heat treatment, a rod-like handle to which the case is attached, a grip coupling body and a handle to be attached to the handle. In the shovel scoop, the handle and the grip coupling body are each formed of an aluminum material, and the handle and the grip coupling body are joined by aluminum welding. A solid cap material that closes the cap is press-fitted, the tip of the handle into which the cap material is press-fitted is inserted into the insertion portion of the housing, and the cap material is penetrated by a fastener to penetrate the cap and the housing. And are fastened and fixed.

  The shovel scoop according to claim 2 is characterized in that the cap material is made of solid wood, resin, or metal.

  Moreover, in the shovel scoop according to claim 3, after inserting the tip of the handle into which the cap material is press-fitted into the insertion part of the casing, the gap on the back side of the insertion part of the casing is formed. It is characterized by being fixed by welding.

  According to the shovel scoop of the present invention, in the shovel scoop composed of a steel case subjected to heat treatment, a rod-like handle to which the case is attached, a grip coupling body and a handle to be attached to the handle, The handle and the grip connecting body are each formed of an aluminum material, and the handle and the grip connecting body are joined by aluminum welding, and the solid wood that closes the opening at the tip opening of the handle made of an aluminum tube. A cap material made of either resin or metal is press-fitted, and the tip of the handle into which the cap material is press-fitted is fitted into the insertion portion of the housing, and the cap material is penetrated by a fastener. Since the body and the casing are fastened and fixed, the use of aluminum material can reduce the weight and make it easier to handle than the conventional wooden or steel pipe handle shovel scoop. In addition, aluminum grips that cannot be welded due to different materials and steel housings can be firmly fastened with a fastener so that the internal cap material penetrates, and aluminum materials with sufficient strength are used. The excavator scoop can be realized.

  In addition, since the front end of the handle into which the cap material is press-fitted into the insertion part of the casing is fitted, the gap on the back side of the insertion part of the casing is welded and fixed. Can be prevented, and can be joined more firmly without rattling.

  According to the shovel scoop of the present invention, the handle and the grip coupling body are formed of a lightweight aluminum material. The grip is made of aluminum or wood. And a handle, a grip coupling body, and a grip are joined integrally by aluminum welding. When the grip is made of wood, it is fixed to the grip connecting body with a nail or the like. In addition, a cap material is pressed into the opening at the tip of the handle so as to block the opening and prevent entry of earth and sand into the handle. Here, the cap material is made of any one of wood, resin, and metal, and has been conventionally used for an intubation tube that is inserted in the connecting portion between the handle and the casing for securing strength. Instead of a hollow one, a solid one that is filled up to the contents is used. And after fitting the front-end | tip part of the handle into which the said cap material was press-fit in the insertion part of a housing, a handle and a housing are fastened and fixed with a rivet, and it joins.

  At this time, if the cap material is hollow like the conventional intubation etc., it must be fixed separately on the left and right with two blind rivets inserted from the left and right sides of the cap material, The processing is cumbersome and expensive, and the strength cannot be increased so much. However, in the present invention, since the cap material is solid, the inner cap material is penetrated by one rivet. In this way, it is possible to fasten and fix the handle and the case at a time, making it easy to process and reducing the cost, and pressing the insertion part of the case from the left and right with a single rivet. Therefore, deformation and breakage such as expansion of the insertion part of the housing can be prevented, and sufficient strength can be ensured.

  Moreover, after fitting the front-end | tip part of the handle which press-fit the cap material in the insertion part of the housing, the clearance gap opened on the back surface side of the insertion part of a housing is welded and fixed. As a result, it is possible to reliably prevent deformation and breakage such as expansion of the insertion portion of the housing, and to provide a more durable excavator.

  Embodiments of the present invention will be described below with reference to the drawings.

  Reference numeral 1 in the figure denotes an excavator according to the present invention, which includes a handle 2, a grip coupling body 3, a grip 4, and a housing 5. The handle 2, the grip coupling body 3, and the grip 4 are made of an aluminum material. On the other hand, the case 5 is made of heat-treated steel for wear resistance. The grip 4 may be made of an aluminum material, but may be made of wood that has a good texture when used in a cold region.

  The handle 2 is in the shape of a pipe made of an aluminum material. As shown in FIG. 2, the opening of the handle 2 is closed to prevent foreign matter such as earth and sand from entering the handle 2. A cap material 6 for press-in is press-fitted. The cap material 6 is made of any one of various resins such as wood, polymer resin, and various metals such as iron, and is not a hollow material but a solid material filled up to the contents. Yes.

  Further, the cap material 6 is provided with a through hole 8 so as to be able to penetrate the rivet 7 which is a fastener, and the rivet 7 is also inserted into both the left and right sides of the insertion portion 5a of the housing 5. Each of the through holes 9 is made to make them. In place of the rivet 7, for example, a fastener such as a screw or a bolt can be employed.

  When the excavator 1 is formed by integrally joining the handle 2, the grip coupling body 3, the grip 4, and the housing 5, first, the grip coupling body 3 and the grip 4 formed of the same aluminum material are used. Join by aluminum welding. If the grip 4 is wooden, it is fixed to the grip connecting body 3 with a nail or the like. Next, the integrated grip portion is fitted into the end portion of the handle 2 which is also made of an aluminum material on the side where the cap material 6 is not press-fitted, and is integrally joined by aluminum welding.

  Subsequently, after inserting the end of the handle 2 on the side where the cap material 6 is press-fitted into the insertion portion 5 a of the housing 5, one rivet 7 is inserted into the insertion portion 5 a of the housing 5 and the cap material 6. And are fixed by being penetrated through the through holes 8 and 9, respectively. At this time, since the cap material 6 is solid, it can be fastened and fixed at once with one rivet 7 as described above, and the processing is easy and the cost can be reduced. Since the rivet 7 is used to fasten and fix the insertion portion 5a of the housing 5 from the left and right, deformation and breakage such as expansion of the insertion portion 5a of the housing 5 can be prevented in advance. It is possible to ensure the durability enough to withstand even the use.

  In this way, the handle 2, the grip coupling body 3, and the grip 4 are each integrally joined by aluminum welding, and the steel housing 5 made of different materials has a tip portion of the handle 2 into which the cap material 6 is press-fitted. Since it is inserted into the insertion portion 5a of the housing 5 and integrally joined with one rivet 7, an excavator scoop using an aluminum material having sufficient strength can be realized. .

  3 shows that the gap 10 opened on the back surface side of the insertion portion 5a of the casing 5 is welded after fitting the tip of the handle 2 into which the cap material 6 is press-fitted into the insertion portion 5a of the casing 5. In this way, in addition to the fastening force by the rivet 7, the insertion portion 5 a of the housing 5 holds and fixes the tip end portion of the handle 2. For example, even if a strong force is applied to the joint during excavator work, it is possible to reliably prevent deformation and breakage that causes the insertion portion 5a of the housing 5 to expand, and to improve durability. Further improvement can be expected.

It is (a) front view and (b) back view of the shovel which concerns on this invention. It is the principal part enlarged view which notched a part of front view of FIG. It is the rear view which expanded the principal part which shows the state which welded the clearance gap by the side of the back surface of the insertion part of a housing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Excavator 2 ... Handle 3 ... Grip coupling body 4 ... Grip 5 ... Housing 5a ... Insertion part 6 ... Cap material 7 ... Rivet (fastener)
8, 9 ... through hole 10 ... gap

Claims (3)

  In a shovel scoop composed of a heat-treated steel case, a rod-like handle to which the case is attached, a grip connecting body and a grip to be attached to the handle, the handle and the grip connecting body are each made of an aluminum material. The handle and the grip coupling body are joined by aluminum welding, and a solid cap material that closes the opening is pressed into the tip opening of the handle made of an aluminum tube, and the cap material is press-fitted. An excavator scoop characterized in that the handle and the casing are fastened and fixed so that the tip of the handle is fitted into the insertion portion of the casing and the cap material is penetrated by a fastener.   The shovel scoop according to claim 1, wherein the cap material is made of solid wood, resin, or metal.   The gap on the back side of the insertion part of the housing is fixed by welding after inserting the tip of the handle into which the cap material is press-fitted into the insertion portion of the housing. Excavator scoop according to 1 or 2.

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