JP4882121B2 - Tooth member for excavator excavator and bucket thereof - Google Patents

Description

  The present invention relates to a tooth member and a bucket projecting from an excavation edge of a bucket of an excavator excavator.

Conventionally, as a tooth member of this type, a plurality of juxtaposed linings are provided on the excavation edge of a bucket of an excavator excavator through an adapter so as to be detachable in parallel. A structure that performs soil work is known.
JP 2004-124414 A Japanese Patent No. 3479489

  However, in the case of the conventional structure, a back-side step recess is formed on the back surface of the one side plate portion extending from one side portion in the left-right direction of the insertion recess into which the adapter of the tooth member can be inserted, and the other side in the left-right direction of the insertion recess. This is a structure in which a front side step recess is formed on the surface of the other side plate portion extending from the portion, and the back side step recess and the front side step recess of the tooth member adjacent to each other are arranged so as to overlap each other. Since the arrangement pitch between the tooth members is limited by the polymerization distance between the back-side step recess and the front-side step recess of the adjacent tooth member, the front-side step recess of the tooth member adjacent to the back-side step recess is structurally The polymerization distance cannot be increased, the arrangement pitch between the tooth members may not be increased, and the flexibility of the arrangement pitch may be reduced. It has the disadvantage that it is not necessary to prepare tooth member classes.

  The present invention aims to solve these disadvantages. Among the present inventions, the invention according to claim 1 detachably protrudes from an excavation edge of a bucket of an excavator excavator via an adapter. The tooth member includes an insertion recess into which the adapter can be inserted and a tooth plate portion that performs excavation, and a gap setting portion projects from one side in the left-right direction on the back side of the insertion recess. An insertion plate portion constituting the tooth plate portion is formed on one side portion of the gap setting portion, and a back side plate portion constituting the tooth plate portion is formed on the other side portion of the gap setting portion, Excavator excavation characterized in that a pressing plate portion is provided in a protruding manner on the other side portion of the fitting recess with an insertion gap in which the insertion plate portion can be inserted between the back side plate portion and the back side plate portion. It is in the machine tooth member.

  According to a second aspect of the present invention, the adapter and the fitting recess are detachably provided by an attachment / detachment pin, and an attachment / detachment pin for attaching / detaching the tooth member and the adapter to / from the insertion plate portion and the back side plate portion. The invention is characterized in that an escape portion is formed to prevent the interference of the tooth member, and the invention according to claim 3 is an interference with a pressing plate portion of the adjacent tooth member at a lower portion of the insertion plate portion. Is formed by forming a retaining ridge.

  The invention according to claim 6 is a shovel excavator bucket comprising a plurality of excavator teeth according to any one of claims 1 to 3 arranged in parallel. It is in.

  As described above, according to the first or fourth aspect of the present invention, the gap setting portion protrudes from one side in the left-right direction on the back side of the insertion recess, and the tooth is formed at one side of the gap setting portion. Since the insertion plate portion constituting the plate portion is formed, the length in the left-right direction of the insertion gap into which the insertion plate portion can be inserted is the gap present in one side portion in the left-right direction on the back side of the insertion recess. The length until reaching the setting portion can be lengthened, that is, the length until reaching the other portion in the left-right direction on the back side of the insertion recess can be lengthened, and the arrangement between the tooth member and the adjacent tooth member The pitch can be increased, thereby increasing the flexibility with respect to the length of the digging edge of the bucket and the flexibility of using the tooth member with respect to the size of the bucket.

  In the invention of claim 2, the adapter and the fitting recess are detachably provided by a detachable pin, and the tooth member and the adapter are attached to and detached from the insertion plate portion and the back side plate portion. Therefore, even if the arrangement pitch between the tooth member and the adjacent tooth member is minimized, the presence of the escape portion causes the detachable pin from the front side to the back side. In the invention according to claim 3, in the lower part of the insertion plate portion, an anti-interference with the pressing plate portion of the adjacent tooth member is prevented to form a removal protruding portion. Therefore, the separation of the adjacent tooth members can be prevented by the contact of the pressing plate portion, the insertion plate portion, and the retaining ridge portion of the adjacent tooth members.

  FIGS. 1 to 13 show an embodiment of the present invention. Reference numeral 1 denotes a bucket of an excavator excavator. As shown in FIG. 7, a plurality of adapters 2 are attached to the excavation edge 1a of the bottom plate of the bucket 1. Plurally, a plurality of the left end tooth members L, the two tooth members 3 and the right end tooth member R are detachably protruded downward in the front end direction of the bucket 1.

  In this case, the tooth member 3 includes an insertion recess 4 into which the adapter 2 can be inserted and a tooth plate portion 5 that performs excavation action. As shown in FIGS. 4 and 10, the insertion portion 2 a is tapered at the distal end of the adapter 2. And the vertical hole 2b is formed, and the tapered insertion hole 4a and the vertical square holes 4b and 4b are formed in the insertion recess 4 of the tooth member 3, and the insertion part 2a is inserted into the insertion hole 4a. The square elastic material 6 is fitted into the hole 2b, and the square attachment / detachment pin 4c is press-fitted into the vertical square holes 4b and 4b and the vertical square hole 2b, and the tooth member 3 is inserted into and removed from the adapter 2 by the insertion / removal of the attachment / detachment pin 4c. It is configured to be detachable via the insertion recess 4.

  In this case, a gap setting portion 7 is provided so as to project from one side in the left-right direction on the back side of the fitting recess 4, and an insertion plate portion 8 constituting the tooth plate portion 5 is formed on one side portion of the gap setting portion 7, The back side plate part 9 constituting the tooth plate part 5 is formed on the other side part of the gap setting part 7, and the insertion plate part 8 can be inserted between the back side plate part 9 and the other side part of the fitting recess 4. The presser plate portion 10 is provided so as to protrude with a small insertion gap H.

  In this case, the adapter 2 and the fitting recess 4 are detachably provided by the attaching / detaching pins 4c, and the attaching / detaching pins for attaching / detaching the tooth member 3 and the adapter 2 to / from the insertion plate portion 8 and the back side plate portion 9 are provided. Escape portions 8a and 9a are formed to prevent interference with 4c.

  Further, in this case, the protruding protruding portion 11 is formed in the lower portion of the insertion plate portion 8 while preventing interference with the pressing plate portion 10 of the adjacent tooth member 3.

  Since this embodiment has the above-described configuration, a plurality of adapters 2, 2,... Are fixed in parallel to the excavation edge 1c of the bucket 1 of the excavator excavator, and the adapter 2 can be inserted into the tooth member. The gap setting portion 7 protrudes from one side in the left-right direction on the back side of the insertion recess 4, and the tooth plate portion 5 is provided at one side of the gap setting portion 7. Is formed on the other side portion of the gap setting portion 7, and the back side plate portion 9 is formed on the other side portion of the fitting recess 4. Since the holding plate portion 10 protrudes with an insertion gap H into which the insertion plate portion 8 can be inserted, the back side plate of the right end tooth member R as shown in FIGS. The insertion plate portion 8 of the tooth member 3 adjacent to the insertion gap H between the portion 9 and the holding plate portion 10 is inserted, and the back side of the tooth member 3 The insertion plate portion 8 of the tooth member 3 adjacent to the insertion gap H between the portion 9 and the pressing plate portion 10 is inserted, and the insertion between the back side plate portion 9 and the pressing plate portion 10 of the tooth member 3 is performed. The insertion plate portion 8 of the tooth member 3 adjacent to the gap H is inserted, and the insertion plate of the left end tooth member L adjacent to the insertion gap H between the back side plate portion 9 and the pressing plate portion 10 of the tooth member 3 is inserted. In the state where the four tooth members R.3.3.L of the right end tooth member R, the two tooth members 3, 3. and the left end tooth member L are inserted into each other, the four adapters 2. The tooth members R, 3, 3, and L are inserted into and attached to 2.

  At this time, in particular, a gap setting portion 7 is provided so as to project from one side in the left-right direction on the back side of the insertion recess 4 and an insertion plate portion 8 constituting the tooth plate portion 5 is formed on one side portion of the gap setting portion 7. Since it has a structure, the length in the left-right direction of the insertion gap H into which the insertion plate portion 8 can be inserted is equal to the distance from the insertion recess 4 to the gap setting portion 7 that is present on one side in the left-right direction. It is possible to increase the length, that is, to extend the length of the back side of the insertion recess 4 to the other portion in the left-right direction, and increase the arrangement pitch between the tooth members L and the adjacent tooth members L. Accordingly, the flexibility with respect to the length of the excavation edge of the bucket 1 can be increased, and the flexibility of the use of the tooth member 3 with respect to the size of the bucket 1 can be increased.

  In this case, the adapter 2 and the fitting recess 4 are detachably provided by the attaching / detaching pins 4c, and the attaching / detaching pins for attaching / detaching the tooth member 3 and the adapter 2 to / from the insertion plate portion 8 and the back side plate portion 9 are provided. Since the escape portions 8a and 9a that prevent interference with 4c are formed, even if the arrangement pitch between the tooth members 3 and the adjacent tooth members 3 is minimized as shown in FIGS. Due to the presence of the escape portions 8a and 9a, the detachable pin 4c can be removed from the front side to the back side. In this case, the pressing plate of the adjacent tooth member 3 below the insertion plate portion 8 can be removed. Since the prevention protruding portion 11 is formed while preventing interference with the portion 10, the adjacent tooth member 3 is separated by the contact between the lower side portion of the pressing plate portion 10 of the adjacent tooth member 3 and the prevention protruding portion 11. Can prevent and teeth To be able to reinforce the excavation side parts 5 can enhance the durability of use.

  In addition, this invention is not restricted to the said embodiment, For example, the bucket 1, the adapter 2, the tooth member 3, the insertion recessed part 4, the tooth plate part 5, the gap | interval setting part 7, the insertion board part 8, the back side board The structure, form, formation position, material, and the like of the portion 9 and the pressing plate portion 10 are appropriately designed and changed.

  As described above, the intended purpose can be sufficiently achieved.

It is a surface perspective view of the example of an embodiment of the invention. It is a back surface front view of the embodiment of the present invention. It is a back surface perspective view of the example of an embodiment of the invention. It is a front view of the surface of the embodiment of the present invention. It is an isolation | separation perspective view of the use condition of the embodiment of this invention. It is a top view of the example of an embodiment of the invention. It is a plane sectional view of an example of an embodiment of the invention. It is a front view of the use condition of the embodiment of this invention. It is a cross-sectional view of the use state of the embodiment of the present invention. It is a cross-sectional view of the use state of the embodiment of the present invention. It is a front view of the use condition of the embodiment of this invention. It is a top view of the use condition of the embodiment of this invention. It is a front sectional view of the use state of the embodiment of the present invention.

Explanation of symbols

H Insertion gap 1 Bucket 2 Adapter 3 Tooth member 4 Insertion recessed part 4c Removable pin 5 Tooth plate part 7 Gap setting part 8 Insertion plate part 8a Escape part 9 Back side board part 9a Escape part 10 Holding plate part 11 Depression raising part

Claims (4)

  A tooth member detachably projecting from an excavator edge of a bucket of an excavator excavator via an adapter, the tooth member comprising an insertion recess into which the adapter can be inserted and a tooth plate portion that performs excavation. A gap setting portion projecting from one side in the left-right direction on the back side of the fitting recess, and an insertion plate portion constituting the tooth plate portion is formed on one side portion of the gap setting portion. A back side plate portion constituting the tooth plate portion is formed on the other side portion, and an insertion gap in which the insertion plate portion can be inserted between the back side plate portion and the other side portion of the fitting recess exists. A tooth member for an excavator excavator, characterized in that a pressing plate portion is provided in a protruding manner.   The adapter and the fitting recess are detachably provided by an attachment / detachment pin, and a relief portion is formed on the insertion plate portion and the back side plate portion to prevent interference with the attachment / detachment pin for attaching / detaching the tooth member and the adapter. The tooth member for an excavator excavator according to claim 1.   3. A tooth member for an excavator excavator according to claim 1 or 2, wherein a retaining bulge portion is formed at a lower portion of the insertion plate portion to prevent interference with a pressing plate portion of the adjacent tooth member. . A shovel excavator bucket comprising a plurality of the excavator excavator teeth according to any one of claims 1 to 3 arranged in parallel.

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