JP3139904U - Horizontal pin, horizontal pin punching tool and horizontal tweezers for work machine bucket - Google Patents

Abstract

The present invention simplifies and improves the efficiency of fitting and removing work of a horizontal pin itself when fitting or removing a horizontal pin for attaching a point to an adapter on the excavation edge side of a bucket. A novel lateral pin that can be designed is provided.
A horizontal pin 1 of a work machine bucket 21 according to the present invention is fitted into horizontal holes 22a, 23a passing through an adapter 22 and a point 23 to be fitted to the adapter 22, and includes a horizontal pin punching tool. A recessed portion 3 selected from one of or both of the end surface portions that come into contact with the striking end portion 31 of the 31; a cylindrical shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular prism shape, a quadrangular pyramid shape, and the like; The spring washer portion 4 is provided at a position deviated to one side from the center in the length direction of the horizontal pin 1 itself.
[Selection] Figure 1

Description

  The present invention is intended to simplify and improve efficiency of fitting and removing work of the horizontal pin itself when fitting or removing work of the horizontal pin for attaching a point to the adapter on the excavation edge side of the bucket. The present invention relates to a horizontal pin, a horizontal pin punching tool, and a horizontal tweezer of a novel work machine bucket that can be made.

  In various buckets that are used by being attached to a work machine such as a power shovel and a shovel loader, a plurality of (for example, four or five) adapters arranged at equal intervals on the excavation edge side for excavating the ground of the bucket Each bracket is fitted to the back of a plurality of points on the leveling plate side, and each point is detachably fixed by fitting a horizontal pin to each horizontal hole that penetrates the adapter and the point. is doing.

  In this case, when removing each point from the adapter, it is necessary to manually remove the horizontal pin. However, conventionally, there is no special tool for removing the horizontal pin. At present, for example, one end of a reinforcing bar is applied, and the other end of the reinforcing bar is hit with a hammer or the like to pull out the horizontal pin.

  In the extraction work using the reinforcing bar described above, it is relatively easy to extract the lateral pins located at both corners, but the lateral pins located at the inside are not simple, and the lateral pins at both corners are extracted. After that, a troublesome operation is required in which a long reinforcing bar is inserted through the lateral hole where the lateral pin is lost, hitting the remaining lateral pin, striking with a hammer or the like, and the lateral pin is removed.

  In addition, the hitting surface of the horizontal pin that has been used in the past is a flat surface, and in the case of the extraction work using the above-described reinforcing bar, both the reinforcing bar and the horizontal pin are made of iron. Sliding occurs at the contact portion between the two, and it is difficult to transmit the striking force by a hammer or the like to the 100% horizontal pin. As a result, the efficiency of extracting the horizontal pin has been reduced.

  Furthermore, since the horizontal pin used in the past is provided with a spring washer portion for preventing the pin from coming into pressure contact with the inner wall of the horizontal hole in the adapter at the center in the longitudinal direction of the horizontal pin itself, The driving length at the time of fitting in the hole and the extraction length at the time of extraction are large, and this also leads to a decrease in work efficiency.

  In Patent Document 1, a rear part of a point is fitted to an adapter that is welded and fixed to an excavation edge for excavating the ground of a bucket that is attached to a civil construction machine such as a power shovel, and the adapter and the point are penetrated. A ground leveling plate for a bucket such as a power shovel, in which a point is detachably attached by strongly fitting a horizontal pin to a provided horizontal hole, is disclosed.

In the case of this patent document 1 as well, no special contrivance is taken with respect to the lateral pin, nor does it refer to a dedicated tool for extracting the lateral pin.
JP-A-9-137477

  The problem to be solved by the present invention is that simplification of the fitting work of the horizontal pin itself and the extraction work at the time of fitting and extraction work of the horizontal pin for attaching the point to the adapter on the excavation edge side of the bucket In the state where the horizontal pin that can improve the efficiency and the point is attached to the adapter with the horizontal pin, there is no dedicated horizontal pin punching tool that can easily pull the horizontal pin. is there.

  The horizontal pin of the work machine bucket of the present invention is a horizontal pin of the work machine bucket that fits into a horizontal hole that passes through an adapter lined up on the excavation edge side of the work machine bucket and a point to be fitted to the adapter. The most important feature is that a recessed portion is provided in the end surface portion that comes into contact with the striking end portion of the horizontal pin punching tool.

  According to the first aspect of the present invention, since the recessed portion is provided in the end surface portion of the horizontal pin itself, no slippage occurs when the horizontal pin and the horizontal pin punching tool are used, and the extraction operation is efficiently performed. A work machine bucket transverse pin that can be provided can be provided.

  According to the second aspect of the present invention, one or both of the end face portions are provided with a recessed portion selected from a columnar shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular or more polygonal column shape, a quadrangular pyramid shape or the like. As the provided structure, it is possible to provide a lateral pin of the working machine bucket that has the same effect as the device of the first aspect.

  According to the invention described in claim 3, the same effect as that of the invention described in claim 2 can be obtained, and these operations can be performed more simply than in the case of the conventional lateral pin both at the time of driving and at the time of extraction. Thus, it is possible to provide a lateral pin of the working machine bucket capable of improving the working efficiency.

  According to the invention of claim 4, the position of each horizontal pin that appears on the side surface of each point attached to the plurality of adapters of the work machine bucket is a corner without the complexity as in the conventional example. It is possible to provide a horizontal pin punching tool for a work machine bucket of a work machine bucket that can be simply extracted regardless of whether it is inside or not, and is excellent in safety.

  According to the invention of claim 5, it corresponds to any one of the recessed portion shapes selected from a cylindrical shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular polygonal prism shape, a quadrangular pyramid shape or the like. It is possible to provide a horizontal pin punching tool for a work machine bucket that has the same effect as that of the fourth aspect of the invention with a configuration including a tool main body provided with a shaped striking end.

  According to the inventions described in claims 6 to 8, when the point is attached to the adapter of the existing work machine bucket and when the point attached to the adapter is removed, the point attaching work to the adapter can be simplified. It is possible to provide a lateral tweezers for a work machine bucket that contributes to the improvement of the work efficiency through simplification of the work of removing points from the work.

  The present invention provides a horizontal pin that can simplify and improve the efficiency of fitting and removing the horizontal pin when attaching or removing the horizontal pin that attaches a point to the adapter on the excavation edge side of the bucket. The purpose is to provide pins.

  The horizontal pin of the work machine bucket of the present invention is a horizontal pin of the work machine bucket that fits into a horizontal hole that passes through an adapter lined up on the excavation edge side of the work machine bucket and a point to be fitted to the adapter. , A concave portion selected from one or both of the end surface portion that comes into contact with the striking end portion of the horizontal pin punching tool, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular prism shape or more, a quadrangular pyramid shape or more, etc. The above object is realized by a configuration having a portion and a spring washer portion provided at a position deviated to one side from the longitudinal center of the lateral pin itself.

  Below, the horizontal pin of the working machine bucket which concerns on the Example of this invention, a horizontal pin extraction tool, and a horizontal tweezer are demonstrated in detail.

Example 1
With reference to FIG. 1 thru | or FIG. 4, the horizontal pin 1 of the working machine bucket 21 which concerns on Example 1 of this invention is demonstrated.

  As shown in FIG. 1, the horizontal pin 1 according to the first embodiment includes, for example, an adapter 22 arranged on the excavation edge side of a work machine bucket 21 such as a power shovel, and a point 23 fitted to the adapter 22. The point 23 is fixed to the adapter 22 by fitting so as to pass through the horizontal holes 22a and 23a provided in the adapter 22.

  As shown in FIGS. 2 and 3 in an enlarged manner, the lateral pin 1 has a pin body 2 formed in a substantially round bar shape and having a predetermined length as a whole, and a lateral pin punching tool to be described in detail later. A recessed portion 3 provided on one or both of the end surface portions 2a that come into contact with the striking end portion of 31 and a spring washer portion 4 provided at a position deviated from the center in the length direction of the pin body 2 to one side. Yes.

  As shown in FIG. 4, the shape of the recessed portion 3 is selected from each shape such as a columnar shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular polygonal prism shape, a quadrangular pyramid shape or the like. Can do.

  The spring washer portion 4 is not a central portion in the length direction of the pin body 2, but a small-diameter portion 2b provided at a position deviating from the central portion in the length direction to one side, and a split mold having a spring function on the outer periphery of the small-diameter portion 2b. The washer 5 is fitted, and the spring function of the split washer 5 is used to press the inner wall of the lateral hole 22a of the adapter 22 so that the point 23 is firmly fixed to the adapter 22. .

  Next, functions and effects of the horizontal pin 1 according to the first embodiment will be described.

  According to the horizontal pin 1 according to the first embodiment, since the recessed portion 3 having the shape as described above is provided on one or both of the end surface portions 2a, for example, when the horizontal pin punching tool 31 is punched, By setting the shape of the end to a cylindrical shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular polygonal shape, a quadrangular pyramid shape, or the like that fits into the recessed portion 3, the lateral pin 1 and the lateral pin Slip does not occur between the punching tool 31 and the punching force generated by the hammer 41 is transmitted to the 100% horizontal pin 1 via the horizontal pin punching tool 31 so that the horizontal pin 1 is efficiently extracted. can do.

  In addition, in the conventionally used horizontal pin, a spring washer part for preventing the spring from coming into pressure contact with the inner wall of the horizontal hole in the adapter is provided in the central part in the length direction, so that the spring washer part is located in the center of the horizontal hole in the adapter. It is necessary to drive the horizontal pin until it comes into pressure contact with the inner wall of the portion, and there is a disadvantage that the driving length and the extraction length of the horizontal pin become large (for example, 4 to 5 cm).

  In this regard, according to the lateral pin 1 according to the first embodiment, as described above, the spring washer portion 4 is not the central portion in the length direction of the pin body 2 but a position that is biased to one side from the central portion in the length direction. Is arranged.

  Therefore, when driving the horizontal pin 1, as shown in FIG. 5, the end surface 2a side of the horizontal pin 1 far from the spring washer 4 is first inserted into the horizontal hole 23a of the point 23, and in this state the horizontal pin 1, the spring washer 4 is pressed against the inner wall of the horizontal hole 22 a of the adapter 22 with a short driving length (for example, about 2.5 cm), and the point 23 is firmly fixed to the adapter 22. Can do.

  On the contrary, when the horizontal pin 1 is extracted, the hammer 41 is used to place the hammering portion of the horizontal pin punching tool 31 on the end surface portion 2a of the horizontal pin 1 far from the spring washer 4 and the horizontal pin punching tool 31 is used. By applying an extraction force to the horizontal pin 1, the spring washer 4 can be detached from the inner wall of the horizontal hole 22a of the adapter 22 with a short extraction length (for example, about 2.5 cm), and the horizontal pin 1 can be extracted. .

  From the above, according to the horizontal pin 1 according to the first embodiment, it is possible to perform these operations in a simpler manner than in the case of the conventional horizontal pin both when driving the horizontal pin 1 and when extracting it. Improvements can be made.

  In the first embodiment, the lateral pin 1 can be applied to a configuration in which the recessed portion 3 having the shape as described above is provided on one or both of the end surface portions 2a and the spring washer portion 4 is not provided. . In this case, the same function and effect as described above can be exhibited except for the effect of the spring washer portion 4.

(Example 2)
Next, with reference to FIG. 6 and FIG. 7, a lateral pinning tool 31 for the work machine bucket 21 according to the second embodiment of the present invention will be described.

  As shown in FIG. 6, the lateral pinning tool 31 according to the second embodiment includes, for example, a rod-shaped tool body 32 that is bent in an arc shape and has striking end portions 33 a and 33 b at both ends, and the tool body. 32, a handle portion 34 with a grip 35 that protrudes integrally from the substantially central portion to the side, for example, a portion other than the striking end portion.

  One hammering end 33a of the tool body 32 has a larger diameter than the other part so that the hammer 41 can be easily hammered.

  Further, the shape of the other striking end portion 33b of the tool body 32 is a cylinder shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular polygonal prism shape, a quadrangular pyramid shape or the like shown in FIG. The shape corresponding to the recessed portion 3 of the horizontal pin 1 selected from the above.

  That is, the striking end portion 33b may be any one of a cylindrical shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a polygonal column shape of four or more squares, a pyramid shape of four or more squares or the like so that the tip portion is immersed in the recessed portion 3. It has a shape.

  The grip 35 of the handle portion 34 is made of, for example, rubber, and has an outer peripheral shape that is easy to be gripped by an operator, such as a circular shape, an elliptical shape, or a rectangular shape.

  As shown in FIG. 7, the horizontal pin removal tool 31 according to the second embodiment uses a horizontal pin 1 with a point 23 on an adapter 22 arranged on the excavation edge side of a work machine bucket 21 such as a power shovel. It is used when the lateral pin 1 is punched out and the point 23 is detached from the adapter 22 from a fixed state.

  That is, an operator holds the grip 35 of the horizontal pin removal tool 31 and inserts the tip of the hammering end portion 33b into the recessed portion 3 provided in the horizontal pin 1 exposed on the side surface of the point 23. In this state, the operator strikes one strike end 33a of the tool body 32 using the hammer 41.

  As a result, a 100% pulling force acts on the lateral pin 1 without slipping through the tool body 32, and the lateral pin 1 can be efficiently sent out to the other side surface of the point 23.

  In this case, since the tool body 32 is not straight but has a curved shape, as shown in FIG. 7, the tool body 32 is positioned at a corner of each point 23 attached to the plurality of adapters 22 of the work machine bucket 21. Of course, the striking end portion 33b is easily brought into contact with the recessed portion 3 of the lateral pin 1 exposed on the side surface of the point 23 located on the inner side, so that the lateral pin 1 can be removed. It can be performed simply.

  At this time, the substantially central portion of the tool main body 32 is located above the point 23 next to the point 23.

  If the horizontal pin punching tool 31 according to the second embodiment is used, each of the points appearing on the side surface of each point 23 attached to the plurality of adapters 22 of the work machine bucket 21 without the complexity as in the conventional example. Regardless of whether the position of the horizontal pin 1 is a corner or not, the horizontal pin 1 can be simply extracted.

  Further, by providing the handle portion 34 with the grip 35, there is no danger of hitting the operator's hand with the hammer 41 when the horizontal pin 1 is extracted, and safety can be improved.

(Example 3)
Next, the horizontal tweezers 51 of the work machine bucket 21 according to the third embodiment of the present invention will be described with reference to FIG.

  The horizontal pin set 51 of the work machine bucket 21 according to the third embodiment is a set of the horizontal pin 1 of the first embodiment and the horizontal pin removing tool 31 of the second embodiment.

  According to this lateral tweezers 51, for example, by purchasing this lateral tweezers 51 and using it when attaching the point 23 to the adapter 22 of the existing work machine bucket 21 and when removing the point 23 attached to the adapter 22, As described in the first and second embodiments, the work efficiency can be improved by simplifying the work of attaching the point 23 to the adapter 22 and simplifying the work of removing the point 23 from the adapter 22.

  In the case of the horizontal tweezers 51 of the work machine bucket 21 according to the third embodiment, the horizontal pin 1 is provided with the recessed portion 3 having the above-described shape on one or both of the end surface portions 2a, and the spring washer portion. An application of using the lateral pin 1 having a configuration in which no 4 is provided is also possible.

  In this case, the same effects as those described above can be exhibited except for the effects of the spring washer portion 4.

  The horizontal pin and the horizontal pin punching tool of the present invention are applied to a work machine bucket such as the above-mentioned power shovel and excavator loader, etc. The present invention can be applied to a mechanical device that separates according to the condition.

It is a schematic plan view which shows the usage condition of the horizontal pin of the working machine bucket which concerns on Example 1 of this invention. 3 is a perspective view of a lateral pin according to the first embodiment. FIG. It is a front view of the horizontal pin which concerns on the present Example 1. FIG. It is a fragmentary perspective view which shows the various shapes of the recessed part of the horizontal pin which concerns on the present Example 1. FIG. It is a partial top view which shows the point of the horizontal pin which concerns on this Example 1, and the driving | running state to the horizontal hole of an adapter. It is a schematic plan view of the horizontal pin punching tool of the working machine bucket which concerns on Example 2 of this invention. It is a perspective view which shows the usage condition of the horizontal pin punching tool which concerns on the present Example 2. FIG. It is a perspective view of the horizontal tweezers of the working machine bucket which concerns on Example 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Horizontal pin 2 Pin main body 2a End surface part 2b Small diameter part 3 Recessed part 4 Spring washer part 5 Split washer 21 Work machine bucket 22 Adapter 22a Horizontal hole 23 Point 23a Horizontal hole 31 Horizontal pin extraction tool 32 Tool main body 33a Strike edge part 33b Hammering end 34 Handle 35 Grip 41 Hammer 51 Lateral tweezers

Claims (8)

A horizontal pin of the work machine bucket that fits in a horizontal hole that passes through the adapter lined up on the excavation edge side of the work machine bucket and a point to be fitted to the adapter,
A lateral pin for a work machine bucket, wherein a concave portion is provided in an end surface portion that abuts against a strike end portion of a lateral pin punching tool. A horizontal pin of the work machine bucket that fits in a horizontal hole that passes through the adapter lined up on the excavation edge side of the work machine bucket and a point to be fitted to the adapter,
One or both of the end face portions that come into contact with the striking end portion of the horizontal pin punching tool are provided with a recessed portion selected from a columnar shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular prism shape or more, a quadrangular pyramid shape or the like. A horizontal pin of a work machine bucket, characterized by being provided. A horizontal pin of the work machine bucket that fits in a horizontal hole that passes through the adapter lined up on the excavation edge side of the work machine bucket and a point to be fitted to the adapter,
A recessed portion selected from one or both of the end surface portions that come into contact with the striking end portion of the horizontal pin punching tool, such as a cylindrical shape, a conical shape, a triangular prism shape, a triangular pyramid shape, a quadrangular prism shape or more, and a quadrangular pyramid shape or more. When,
A spring washer provided at a position biased to one side from the lengthwise center of the horizontal pin itself;
A horizontal pin of the work machine bucket, characterized by comprising: A horizontal pin punching tool for a work machine bucket that punches out a horizontal pin having a recessed portion in an end surface portion that is fitted in a horizontal hole that penetrates an adapter arranged on the excavation edge side of the work machine bucket and a point to be fitted to the adapter. There,
A tool main body having a bent rod shape and a striking end portion at both ends, and at least one end side having a shape corresponding to the recessed portion of the lateral pin;
A handle with a grip projecting sideways from a portion other than the striking end of the tool body,
A horizontal pinning tool for a work machine bucket, characterized by comprising: Cylindrical, conical, triangular prism, triangular pyramid, quadrangular or more polygons on the end face part fitted in the horizontal hole that penetrates the adapter lined up on the excavation edge side of the work machine bucket and the point to be fitted to this adapter A horizontal pin punching tool for a working machine bucket that punches a horizontal pin having a recessed portion selected from a columnar shape, a pyramid shape of four or more squares, and the like,
A tool body having a bent bar shape and a striking end portion at both ends, and at least one end side having a shape corresponding to the shape of any of the recessed portions of the lateral pin;
A handle with a grip projecting sideways from a portion other than the striking end of the tool body,
A horizontal pinning tool for a work machine bucket, characterized by comprising: The horizontal tweezers of the work machine bucket used for fixing and detaching the adapter lined up on the excavation edge side of the work machine bucket and the point fitted to the adapter,
A horizontal pin that is fitted in a horizontal hole that penetrates the adapter and a point to be fitted to the adapter, and that has a recessed portion in an end surface portion that comes into contact with the striking end portion of the horizontal pin punching tool;
A tool body that is a bent bar, has striking ends at both ends, and has at least one end corresponding to the recessed portion of the horizontal pin, and protrudes from a portion other than the striking end of the tool body toward the side. A lateral pinning tool having a handle with a grip;
A horizontal tweezers for a work machine bucket, characterized by comprising: The horizontal tweezers of the work machine bucket used for fixing and detaching the adapter lined up on the excavation edge side of the work machine bucket and the point fitted to the adapter,
A cylindrical hole, a conical shape, a triangular prism shape, and a triangular pyramid shape are attached to one or both of the end surface portions that contact the striking end portion of the horizontal pin punching tool while being fitted into a horizontal hole that passes through the adapter and a point where the adapter is fitted. A lateral pin provided with a recessed portion selected from a shape, a polygonal column shape of a square or more, a pyramid shape of a square or more,
A tool body which is a bent bar and has striking ends at both ends and at least one end corresponding to the shape of any of the recessed portions of the lateral pin, and from the portion other than the striking end of the tool body to the side A lateral pinning tool having a gripped gripping portion,
A horizontal tweezers for a work machine bucket, characterized by comprising: The horizontal tweezers of the work machine bucket used for fixing and detaching the adapter lined up on the excavation edge side of the work machine bucket and the point fitted to the adapter,
A cylindrical shape, a conical shape, a triangular prism shape, which is fitted in one or both of the end surface portions which are in contact with the striking end portion of the horizontal pin punching tool, while being fitted in a horizontal hole penetrating the adapter and a point where the adapter is fitted. A lateral pin having a recessed portion selected from a triangular pyramid shape, a quadrangular prism shape or more, a pyramid shape of a square shape or more, and a spring washer portion provided at a position biased to one side from the longitudinal center of the lateral pin itself;
A tool body which is a bent bar and has striking ends at both ends and at least one end corresponding to the shape of any of the recessed portions of the lateral pin, and from the portion other than the striking end of the tool body to the side A lateral pinning tool having a gripped gripping portion,
A horizontal tweezers for a work machine bucket, characterized by comprising:

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