JP6413660B2

JP6413660B2 - Tooth machine, tooth machine structure and bucket

Info

Publication number: JP6413660B2
Application number: JP2014225887A
Authority: JP
Inventors: 裕樹小嶋
Original assignee: Kobelco Construction Machinery Co Ltd
Current assignee: Kobelco Construction Machinery Co Ltd
Priority date: 2014-11-06
Filing date: 2014-11-06
Publication date: 2018-10-31
Anticipated expiration: 2034-11-06
Also published as: JP2016089499A

Description

本発明は、ツース盤に関し、より詳しくは、作業機械のバケットの先端縁部に取り付けられたアダプタを利用して当該先端縁部に装着されるツース盤に関する。 The present invention relates to a tooth machine, and more particularly, to a tooth machine that is attached to the front edge using an adapter attached to the front edge of a bucket of a work machine.

作業機械による土均し作業や砕土作業等では、バケットの先端縁部に取り付けられたアダプタを介してツース盤が装着される（例えば、特許文献１）。特許文献１の図４では、ショベル系掘削機のバケット（１）の掘削縁部（１ａ）にアダプタ（２）を介してツース部材（３）が装着されている。 In soil leveling work or ground breaking work using a work machine, a tooth machine is mounted via an adapter attached to the leading edge of the bucket (for example, Patent Document 1). In FIG. 4 of Patent Document 1, a tooth member (3) is attached to an excavation edge (1a) of a bucket (1) of an excavator excavator through an adapter (2).

特許第４８７７５８９号公報Japanese Patent No. 4877589

しかし、上記特許文献１の図４では、バケットの掘削縁部（１ａ）の一部がむき出しの状態になっているため、掘削作業に伴って掘削縁部（１ａ）が徐々に摩耗し、バケット自体を比較的短い周期で交換しなければならなかった。 However, in FIG. 4 of the above-mentioned patent document 1, since a part of the excavation edge (1a) of the bucket is exposed, the excavation edge (1a) is gradually worn with excavation work, and the bucket It had to be replaced in a relatively short cycle.

そこで本発明は、作業機械のバケットの先端縁部に装着されるツース盤を用いて、当該先端縁部の摩耗を抑制することが可能な技術を提供することを目的とする。 Then, this invention aims at providing the technique which can suppress the abrasion of the said front-end | tip edge part using the tooth | gear board with which the front-end | tip edge part of the bucket of a working machine is mounted | worn.

上記目的を達成するために、本発明は、作業機械のバケットの先端縁部に取り付けられたアダプタを利用して前記バケットに装着される略矩形状のツース盤であって、前記バケットに装着される側の略中央に配置され、前記アダプタに嵌合するように構成される嵌合部と、前記嵌合部の側方に位置する第１側方板と、前記嵌合部に対して前記第１側方板とは反対側の側方に位置する第２側方板とを備え、前記第１側方板と前記第２側方板との少なくとも一方は、前記ツース盤を前記バケットに装着して水平面に載置した状態において、前記バケットに装着される側の端部が前記先端縁部よりも高くなるように、前記先端縁部側に向かって上方に傾斜した傾斜部を備え、前記嵌合部と一体形成され、前記略矩形状を有するベース板を更に備え、前記第１側方板は、前記ベース板の一部として構成され、前記第２側方板は、前記ベース板の表面に対して所定の隙間を隔てて対向する舌片として構成され、前記ツース盤に対して前記第２側方板側に隣接し、前記アダプタとは異なる他のアダプタを介して前記バケットに装着される隣接ツース盤は、前記バケットに装着される側の略中央に配置され、前記他のアダプタに嵌合するように構成される他の嵌合部と、前記他の嵌合部に対して前記ツース盤側の側方に位置する第３側方板と、を備え、前記舌片は、前記傾斜部を有し、前記第３側方板は、前記隣接ツース盤を前記バケットに装着して水平面に載置した状態において、前記バケットに装着される側の端部が前記先端縁部よりも高くなるように、前記先端縁部側に向かって上方に傾斜した他の傾斜部を有し、前記ツース盤と前記隣接ツース盤とが組み合わされた状態で、前記所定の隙間に前記第３側方板が配置され、前記舌片の前記傾斜部が前記第３側方板の前記他の傾斜部に沿うように構成されることを特徴とするツース盤を提供している。 In order to achieve the above object, the present invention provides a substantially rectangular tooth board that is attached to the bucket by using an adapter attached to a tip edge of a bucket of a work machine, and is attached to the bucket. With respect to the fitting portion, a fitting portion configured to be fitted to the adapter, a first side plate located on a side of the fitting portion, and the fitting portion. A second side plate located on a side opposite to the first side plate, and at least one of the first side plate and the second side plate is configured such that the tooth board is used as the bucket. In a state of being mounted and placed on a horizontal plane, an inclined portion that is inclined upward toward the tip edge side so that an end on the side attached to the bucket is higher than the tip edge , A base plate integrally formed with the fitting portion and having the substantially rectangular shape; The first side plate is configured as a part of the base plate, and the second side plate is configured as a tongue piece facing the surface of the base plate with a predetermined gap therebetween, and the tooth The adjacent tooth board, which is adjacent to the second side plate side with respect to the board and is attached to the bucket via another adapter different from the adapter, is disposed at the approximate center on the side attached to the bucket. The other fitting portion configured to be fitted to the other adapter, and a third side plate located on a side of the tooth board side with respect to the other fitting portion, The tongue piece has the inclined portion, and the third side plate has an end portion on a side attached to the bucket in a state where the adjacent tooth board is attached to the bucket and placed on a horizontal surface. Inclined upward toward the tip edge so that it is higher than the tip edge The third side plate is disposed in the predetermined gap in a state where the tooth board and the adjacent tooth board are combined, and the inclined part of the tongue piece is the first inclined part. A tooth board is provided that is configured to follow the other inclined portion of the three side plates .

また、前記舌片の裏側に配置される前記ベース板は、前記先端縁部側の端部が前記傾斜部の傾斜が開始する開始位置に位置するように構成されるのが好ましい。 Moreover, it is preferable that the base plate arranged on the back side of the tongue piece is configured such that an end portion on the tip edge side is located at a start position where the inclination portion starts to be inclined.

また、前記嵌合部と一体形成され、前記略矩形状を有するベース板を備え、前記第１側方板は、ベース板の一部として構成され、前記第２側方板は、前記ベース板の表面に対して所定の隙間を隔てて対向する舌片として構成され、前記ツース盤に対して前記第１側方板側に隣接し、前記アダプタとは異なる他のアダプタを介して前記バケットに装着される隣接ツース盤は、前記バケットに装着される側の略中央に配置され、前記他のアダプタに嵌合するように構成される他の嵌合部と、前記他の嵌合部と一体形成され、前記略矩形状を有する他のベース板と、前記他の嵌合部に対して前記ツース盤側の側方に位置し、前記他のベース板の表面に対して所定の隙間を隔てて対向する他の舌片とを備え、前記第１側方板は、前記傾斜部と、前記バケットに装着される側とは反対側の表面において突起する突起部とを有し、前記他の舌片は、前記隣接ツース盤を前記バケットに装着して水平面に載置した状態において、前記バケットに装着される側の端部が前記先端縁部よりも高くなるように、前記先端縁部側に向かって上方に傾斜した他の傾斜部を有しており、前記ツース盤と前記隣接ツース盤とが組み合わされた状態で、前記他の舌片が前記第１側方板の前記傾斜部と前記突起部との間に配置され、前記他の舌片の前記他の傾斜部が前記第１側方板の前記傾斜部に沿うように構成されるのが好ましい。 In addition, the base plate is formed integrally with the fitting portion and has the substantially rectangular shape, the first side plate is configured as a part of the base plate, and the second side plate is the base plate It is configured as a tongue that faces the surface of the tooth board with a predetermined gap, is adjacent to the first side plate side with respect to the tooth board, and is connected to the bucket via another adapter different from the adapter. The adjacent tooth board to be attached is disposed at substantially the center on the side to be attached to the bucket, and is integrated with the other fitting part configured to be fitted to the other adapter, and the other fitting part. The other base plate that is formed and has a substantially rectangular shape, and is positioned on the side of the tooth board side with respect to the other fitting portion, with a predetermined gap from the surface of the other base plate. And the first side plate includes the inclined portion and the bar. A protrusion projecting on the surface opposite to the side attached to the rack, and the other tongue piece is mounted on the horizontal surface with the adjacent tooth board mounted on the bucket. The tooth board and the adjacent tooth are provided with another inclined portion inclined upward toward the tip edge side so that the end portion on the side attached to the bucket is higher than the tip edge portion. The other tongue piece is disposed between the inclined portion of the first side plate and the protruding portion, and the other inclined portion of the other tongue piece is It is preferable to be configured along the inclined portion of the one side plate.

また、前記傾斜部は、第１位置から第２位置まで第１角度で傾斜し、前記第２位置から第３位置まで第１角度よりも小さな第２角度で傾斜するように構成され、前記第１位置は、前記傾斜部の傾斜が開始する位置であり、前記第２位置は、前記ツース盤を前記バケットに装着して水平面に載置した状態において、前記先端縁部よりも高い位置であり、前記第３位置は、前記バケットに装着される側の端部が配置される位置であるのが好ましい。 The inclined portion is configured to be inclined at a first angle from a first position to a second position, and to be inclined at a second angle smaller than the first angle from the second position to the third position, The first position is a position where the inclined portion starts to be inclined, and the second position is a position higher than the tip edge portion in a state where the tooth board is mounted on the bucket and placed on a horizontal plane. The third position is preferably a position where an end portion on the side attached to the bucket is disposed.

また、本発明は、ツース盤構造であって、作業機械のバケットの先端縁部に取り付けられた第１アダプタを介して前記バケットに装着される略矩形状の第１ツース盤と、前記先端縁部に取り付けられた第２アダプタを介して前記バケットに装着され、前記第１ツース盤に隣接する略矩形状の第２ツース盤とを備え、前記第１ツース盤は、前記バケットに装着される側の略中央に配置され、前記第１アダプタに嵌合するように構成される第１嵌合部と、前記第１嵌合部と一体形成され、前記略矩形状を有するベース板と、前記第２ツース盤側の前記ベース板の表面に対して所定の隙間を隔てて対向する舌片とを有し、前記第２ツース盤は、前記バケットに装着される側の略中央に配置され、前記第２アダプタに嵌合するように構成される第２嵌合部と、前記第２嵌合部に対して前記第１ツース盤側の側方に配置される側方板とを有し、前記第１ツース盤の前記舌片は、前記ツース盤を前記バケットに装着して水平面に載置した状態において、前記バケットに装着される側の端部が前記先端縁部よりも高くなるように、前記先端縁部側に向かって上方に傾斜した第１傾斜部を有し、前記第２ツース盤の前記側方板は、前記ツース盤を前記バケットに装着して水平面に載置した状態において、前記バケットに装着される側の端部が前記先端縁部よりも高くなるように、前記先端縁部側に向かって上方に傾斜した第２傾斜部と、前記バケットに装着される側とは反対側の表面において突起する突起部とを有し、前記第１ツース盤と前記第２ツース盤とが組み合わされた状態で、前記舌片が前記第２傾斜部と前記突起部との間に配置され、前記第１傾斜部が前記第２傾斜部に沿うように構成されることを特徴とするツース盤構造を更に提供している。 The present invention also provides a tooth board structure, a first tooth board having a substantially rectangular shape that is attached to the bucket via a first adapter attached to a tip edge portion of a bucket of a work machine, and the tip edge. A second tooth board having a substantially rectangular shape that is attached to the bucket via a second adapter attached to a portion and is adjacent to the first tooth board, and the first tooth board is attached to the bucket. A first fitting portion that is disposed at a substantially central portion on the side and configured to fit into the first adapter; a base plate that is integrally formed with the first fitting portion and has the substantially rectangular shape; A tongue piece that is opposed to the surface of the base plate on the second tooth board side with a predetermined gap, and the second tooth board is disposed at a substantially center on the side attached to the bucket, A second fit configured to fit into the second adapter And a side plate arranged on a side of the first tooth board side with respect to the second fitting part, and the tongue piece of the first tooth board has the tooth board as the bucket. 1st inclined part which inclines upward toward the front-end edge part side so that the end part on the side attached to the bucket is higher than the front-end edge part in a state of being mounted on the horizontal surface And the side plate of the second tooth machine has an end on the side attached to the bucket in a state where the tooth machine is mounted on the bucket and placed on a horizontal surface than the tip edge part. A second inclined portion inclined upward toward the tip end edge side, and a protruding portion protruding on a surface opposite to the side attached to the bucket, When the tooth board and the second tooth board are combined, the tongue piece is It is disposed between the second inclined portion and the projection portion, and further provides a tooth block structure, wherein the first inclined portion is configured to conform to the second inclined portion.

また、本発明は、作業機械のバケットであって、底板と、前記底板の先端縁部に取り付けられるアダプタと、前記アダプタを利用して装着される略矩形状のツース盤とを備え、前記ツース盤は、前記バケットに装着される側の略中央に配置され、前記アダプタに嵌合するように構成される嵌合部と、前記嵌合部の側方に位置する第１側方板と、前記嵌合部に対して前記第１側方板とは反対側の側方に位置する第２側方板とを備え、前記第１側方板と前記第２側方板との少なくとも一方は、前記ツース盤を前記バケットに装着して水平面に載置した状態において、前記バケットに装着される側の端部が前記先端縁部よりも高くなるように、前記先端縁部側に向かって上方に傾斜した傾斜部を備え、前記嵌合部と一体形成され、前記略矩形状を有するベース板を更に備え、前記第１側方板は、前記ベース板の一部として構成され、前記第２側方板は、前記ベース板の表面に対して所定の隙間を隔てて対向する舌片として構成され、前記ツース盤に対して前記第２側方板側に隣接し、前記アダプタとは異なる他のアダプタを介して前記バケットに装着される隣接ツース盤は、前記バケットに装着される側の略中央に配置され、前記他のアダプタに嵌合するように構成される他の嵌合部と、前記他の嵌合部に対して前記ツース盤側の側方に位置する第３側方板と、を備え、前記舌片は、前記傾斜部を有し、前記第３側方板は、前記隣接ツース盤を前記バケットに装着して水平面に載置した状態において、前記バケットに装着される側の端部が前記先端縁部よりも高くなるように、前記先端縁部側に向かって上方に傾斜した他の傾斜部を有し、前記ツース盤と前記隣接ツース盤とが組み合わされた状態で、前記所定の隙間に前記第３側方板が配置され、前記舌片の前記傾斜部が前記第３側方板の前記他の傾斜部に沿うように構成されることを特徴とするバケットを更に提供している。 The present invention also provides a bucket for a work machine, comprising: a bottom plate; an adapter attached to a tip edge portion of the bottom plate; and a substantially rectangular tooth board attached using the adapter; The board is arranged at the approximate center on the side to be attached to the bucket, and is configured to be fitted to the adapter, and a first side plate located on the side of the fitting part, A second side plate located on a side opposite to the first side plate with respect to the fitting portion, and at least one of the first side plate and the second side plate is In the state where the tooth board is mounted on the bucket and placed on a horizontal plane, the end on the side to be mounted on the bucket is higher toward the tip edge side so as to be higher than the tip edge. an inclined portion that is inclined, is integrally formed with the fitting portion, it has the said substantially rectangular The first side plate is configured as a part of the base plate, and the second side plate is a tongue that faces the surface of the base plate with a predetermined gap therebetween. An adjacent tooth board, which is configured as a piece and is attached to the bucket via another adapter different from the adapter adjacent to the second side plate side with respect to the tooth board, is attached to the bucket. And a third side located on the side of the tooth board side with respect to the other fitting part. And the tongue piece has the inclined portion, and the third side plate is attached to the bucket in a state where the adjacent tooth board is attached to the bucket and placed on a horizontal plane. The tip edge so that the end on the side to be formed is higher than the tip edge The third side plate is disposed in the predetermined gap in a state where the tooth board and the adjacent tooth board are combined, and the tongue piece has another inclined portion inclined upward toward the side. The bucket is further provided so that the inclined portion is configured to follow the other inclined portion of the third side plate .

請求項１記載のツース盤によれば、ツース盤がバケットの先端縁部に装着された際、当該先端縁部がツース盤の傾斜部により覆われるため、当該先端縁部の摩耗を抑制することが可能である。また、舌片とベース板との間に隣接ツース盤の第３側方板が配置され、舌片の傾斜部が第３側方板の他の傾斜部に沿う構成としたため、たとえば、掘削作業時にツース盤に荷重が加わった際にツース盤と傾斜部とが互いに接触する。その結果、アダプタとツース盤とを固定する固定部材にかかる負荷を低減することが可能である。 According to the tooth machine according to claim 1, when the tooth machine is mounted on the tip edge part of the bucket, the tip edge part is covered with the inclined part of the tooth machine, so that wear of the tip edge part is suppressed. Is possible. Further, since the third side plate of the adjacent tooth board is disposed between the tongue piece and the base plate, and the inclined portion of the tongue piece is configured along the other inclined portion of the third side plate, for example, excavation work Sometimes when a load is applied to the tooth machine, the tooth machine and the inclined part come into contact with each other. As a result, it is possible to reduce the load applied to the fixing member that fixes the adapter and the tooth board.

請求項２記載のツース盤によれば、ベース板のうち舌片の裏側に配置される部分の先端縁部側の端部が短くなり、ツース盤の重量を低減することが可能である。 According to the tooth board of Claim 2, the edge part by the side of the front-end | tip edge part of the part arrange | positioned in the back side of a tongue piece among base plates becomes short, and it is possible to reduce the weight of a tooth board.

請求項３記載のツース盤によれば、隣接ツース盤の他の舌片が第１側方板の傾斜部と突起部との間に配置され、当該他の舌片の他の傾斜部が当該第１側方板の傾斜部に沿うように構成されている。そのため、アダプタとツース盤とを固定する固定部材が破損した場合に、第１側方板の傾斜部が他の舌片の他の傾斜部に係合するため、ツース盤の脱落を防止することが可能である。また、他のアダプタと隣接ツース盤とを固定する固定部材が破損した場合に、他の舌片が第１側方板の突起部に係合するため、隣接ツース盤の脱落を防止することが可能である。 According to the tooth board of claim 3, the other tongue piece of the adjacent tooth board is disposed between the inclined portion and the protrusion of the first side plate, and the other inclined portion of the other tongue piece is the It is comprised so that the inclination part of a 1st side board may be met. Therefore, when the fixing member for fixing the adapter and the tooth board is damaged, the inclined part of the first side plate engages with the other inclined part of the other tongue piece, so that the tooth board is prevented from falling off. Is possible. In addition, when the fixing member that fixes the other adapter and the adjacent tooth board is damaged, the other tongue piece engages with the protrusion of the first side plate, so that the adjacent tooth board can be prevented from falling off. Is possible.

請求項４記載のツース盤によれば、バケットの先端縁部の摩耗をより確実に抑制することが可能である。 According to the tooth board of the fourth aspect, it is possible to more reliably suppress the wear of the leading edge portion of the bucket.

請求項５記載のツース盤構造によれば、第１アダプタと第１ツース盤とを固定する固定部材が破損した場合に、第１ツース盤の舌片が第２ツース盤の突起部に係合するため、第１ツース盤の脱落を防止することが可能である。また、第２アダプタと第２ツース盤とを固定する固定部材が破損した場合に、第２ツース盤の第２傾斜部が第１ツース盤の第１傾斜部に係合するため、第２ツース盤の脱落を防止することが可能である。 According to the tooth board structure of claim 5 , when the fixing member for fixing the first adapter and the first tooth board is damaged, the tongue of the first tooth board is engaged with the protrusion of the second tooth board. Therefore, it is possible to prevent the first tooth board from falling off. Further, when the fixing member for fixing the second adapter and the second tooth board is damaged, the second inclined portion of the second tooth board is engaged with the first inclined portion of the first tooth board, so that the second tooth. It is possible to prevent the board from falling off.

請求項６記載のバケットによれば、ツース盤がバケットの底板の先端縁部に装着された際、当該先端縁部がツース盤の傾斜部により覆われるため、当該先端縁部の摩耗を抑制することが可能である。 According to the bucket according to claim 6 , when the tooth machine is mounted on the front edge of the bottom plate of the bucket, the front edge is covered with the inclined part of the tooth machine, so that wear of the front edge is suppressed. It is possible.

本発明の実施形態による油圧ショベルを示す側面図。1 is a side view showing a hydraulic excavator according to an embodiment of the present invention. ツース盤が装着されたバケットを示す（Ａ）斜視図及び（Ｂ）上面図。The (A) perspective view and (B) top view which show the bucket with which the tooth board was mounted | worn. 図２（Ｂ）のＩＩＩ−ＩＩＩ線断面図。III-III sectional view taken on the line of FIG. （Ａ）〜（Ｃ）は、それぞれ３枚のツース盤を示す上面図。(A)-(C) are top views which respectively show three tooth machines. （Ａ）〜（Ｃ）は、それぞれ３枚のツース盤を示す後面図。(A)-(C) are rear views which each show three tooth boards. バケットの底板の前方中央に配置されるツース盤を示す斜視図。The perspective view which shows the tooth board arrange | positioned in the front center of the baseplate of a bucket. 図２（Ｂ）のＶＩＩ−ＶＩＩ線断面図。The VII-VII sectional view taken on the line of FIG. ３枚のツース盤が組み合わされた状態を示す斜視図。The perspective view which shows the state in which three tooth boards were combined. 変形例に係るツース盤を示す斜視図。The perspective view which shows the tooth board which concerns on a modification. 変形例に係るツース盤をアダプタを介して底板に装着した状態を示す断面図。Sectional drawing which shows the state which mounted | wore the bottom plate through the adapter with the tooth board which concerns on a modification.

＜１．実施形態＞
本発明の実施形態によるツース盤について図１乃至図８に基づき説明する。以下、作業機械の一例として、油圧ショベル１を例にとって説明する。また、ツース盤の一例として、ツース盤７ａ〜７ｃを例にとって説明する。なお、各図面では、上下方向、左右方向及び前後方向を必要に応じて適宜定義している。 <1. Embodiment>
A tooth board according to an embodiment of the present invention will be described with reference to FIGS. Hereinafter, a hydraulic excavator 1 will be described as an example of a work machine. As an example of the tooth board, the tooth boards 7a to 7c will be described as an example. In each drawing, the vertical direction, the horizontal direction, and the front-rear direction are appropriately defined as necessary.

図１に示すように、油圧ショベル１は、ショベル系掘削機であり、クローラ式の下部走行体２と上部旋回体３とを備えて構成される。 As shown in FIG. 1, a hydraulic excavator 1 is an excavator excavator, and includes a crawler type lower traveling body 2 and an upper swing body 3.

上部旋回体３は、下部走行体２上に搭載されており、下部走行体２に対して鉛直軸まわりに旋回することが可能である。上部旋回体３には作業アタッチメント４が設けられており、作業アタッチメント４の先端にはバケット５が装着されている。 The upper swing body 3 is mounted on the lower travel body 2 and can swing around the vertical axis with respect to the lower travel body 2. The upper swing body 3 is provided with a work attachment 4, and a bucket 5 is attached to the tip of the work attachment 4.

図２（Ａ）（Ｂ）に示すように、バケット５の底板５１には、３つのアダプタ６ａ〜６ｃを介して３枚のツース盤７ａ〜７ｃが装着されている。具体的には、ツース盤７ａは、アダプタ６ａを介して底板５１の前方右側に装着される。ツース盤７ｂは、アダプタ６ｂを介して底板５１の前方中央に装着される。ツース盤７ｃは、アダプタ６ｃを介して底板５１の前方左側に装着される。 As shown in FIGS. 2A and 2B, three tooth boards 7 a to 7 c are attached to the bottom plate 51 of the bucket 5 via three adapters 6 a to 6 c. Specifically, the tooth board 7a is attached to the front right side of the bottom plate 51 through the adapter 6a. The tooth board 7b is attached to the front center of the bottom plate 51 through the adapter 6b. The tooth board 7c is attached to the front left side of the bottom plate 51 through the adapter 6c.

図３に示すように、底板５１の先端縁部５１ｅには、アダプタ６ｂが予め溶接されて接合されている。そして、アダプタ６ｂとツース盤７ｂとが嵌合した状態で固定部材８が挿入されることにより、ツース盤７ｂが底板５１に装着されている。なお、固定部材８は、弾性ピン及びロックピン等で構成される。 As shown in FIG. 3, the adapter 6 b is welded and joined to the front edge 51 e of the bottom plate 51 in advance. And the tooth board 7b is mounted | worn with the bottom board 51 by inserting the fixing member 8 in the state which the adapter 6b and the tooth board 7b fitted. The fixing member 8 includes an elastic pin and a lock pin.

同様に、アダプタ６ａ，６ｃも底板５１の先端縁部５１ｅに予め溶接されており、ツース盤７ａ，７ｃはアダプタ６ａ，６ｃを介して底板５１に装着されている。 Similarly, the adapters 6a and 6c are also welded in advance to the leading edge 51e of the bottom plate 51, and the tooth machines 7a and 7c are attached to the bottom plate 51 via the adapters 6a and 6c.

次に、図４〜図８を参照しつつ、３枚のツース盤７ａ〜７ｃについてより詳細に説明する。 Next, the three tooth boards 7a to 7c will be described in more detail with reference to FIGS.

図４（Ａ）〜（Ｃ）に示すように、各ツース盤７ａ〜７ｃは、一部の構成が異なるものの、互いに類似の構成を備えている。具体的には、ツース盤７ａ〜７ｃは、いずれも、嵌合部７１ａ〜７１ｃと、ベース板７３ａ〜７３ｃとを備えて構成されている。 As shown in FIGS. 4A to 4C, the tooth boards 7a to 7c have similar configurations to each other, although some configurations are different. Specifically, each of the tooth boards 7a to 7c includes a fitting portion 71a to 71c and a base plate 73a to 73c.

嵌合部７１ａ〜７１ｃは、図２（Ａ）（Ｂ）に示すアダプタ６ａ〜６ｃに嵌合する部分であり、７ａ〜７ｃのうちバケット５の底板５１に装着される側（後側）の略中央にそれぞれ配置されている。 The fitting portions 71a to 71c are portions to be fitted to the adapters 6a to 6c shown in FIGS. 2A and 2B, and are on the side (rear side) of 7a to 7c attached to the bottom plate 51 of the bucket 5. They are arranged at approximately the center.

ベース板７３ａ〜７３ｃは、それぞれ、嵌合部７１ａ〜７１ｃと一体形成され、上面視略矩形状を有している。 The base plates 73a to 73c are integrally formed with the fitting portions 71a to 71c, respectively, and have a substantially rectangular shape when viewed from above.

図４（Ａ）（Ｂ）に示すように、ツース盤７ａ，７ｂは、それぞれ、舌片７５ａ，７５ｂを更に備えている。一方、図４（Ｃ）に示すように、ツース盤７ｃには舌片は設けられていない。 As shown in FIGS. 4A and 4B, the tooth boards 7a and 7b further include tongue pieces 75a and 75b, respectively. On the other hand, as shown in FIG.4 (C), the tooth piece is not provided in the tooth board 7c.

図４（Ａ）に示すように、舌片７５ａは、嵌合部７１ａの左側方に配置され、嵌合部７１ａからバケット装着時に左側に配置されるツース盤７ｂに向けて突起している。舌片７５ａは、図５（Ａ）に示すように、ベース板７３ａの表面（上側の面）に対して所定の隙間Ｓａを隔てて対向している。なお、図５では、上下左右が逆さまになっている。 As shown in FIG. 4A, the tongue piece 75a is disposed on the left side of the fitting portion 71a and protrudes from the fitting portion 71a toward the tooth board 7b disposed on the left side when the bucket is mounted. As shown in FIG. 5A, the tongue piece 75a faces the surface (upper surface) of the base plate 73a with a predetermined gap Sa therebetween. In FIG. 5, the top, bottom, left and right are upside down.

図４（Ｂ）に示すように、舌片７５ｂは、嵌合部７１ｂの左側方に配置され、嵌合部７１ｂからバケット装着時に左側に配置されるツース盤７ｃに向けて突起している。舌片７５ｂは、図５（Ｂ）に示すように、ベース板７３ｂの表面（上側の面）に対して所定の隙間Ｓｂを隔てて対向している。 As shown in FIG. 4B, the tongue piece 75b is arranged on the left side of the fitting portion 71b and protrudes from the fitting portion 71b toward the tooth board 7c arranged on the left side when the bucket is mounted. As shown in FIG. 5B, the tongue piece 75b is opposed to the surface (upper surface) of the base plate 73b with a predetermined gap Sb.

図６に示すように、ツース盤７ｂの舌片７５ｂは、傾斜部７５１ｂを備えている。傾斜部７５１ｂは、図７に示すように、ツース盤７ｂを底板５１に装着して水平面に載置した状態において、端部７５３ｂが底板５１の先端縁部５１ｅ（より具体的には先端縁部５１ｅの最も高い部分）よりも高くなるように、先端縁部５１ｅ側に向かって上方に傾斜している。ここでは、傾斜部７５１ｂは、水平面に対して若干弓状に反って上方に傾斜していることから、反り上がり部とも称される。 As shown in FIG. 6, the tongue piece 75b of the tooth board 7b includes an inclined portion 751b. As shown in FIG. 7, the inclined portion 751 b is configured so that the end portion 753 b is the tip edge portion 51 e (more specifically, the tip edge portion) of the bottom plate 51 in a state where the tooth board 7 b is mounted on the bottom plate 51 and placed on the horizontal plane. It is inclined upward toward the tip edge 51e side so as to be higher than the highest portion of 51e. Here, the inclined portion 751b is also referred to as a warped-up portion because it is inclined upward with a slight bow shape with respect to the horizontal plane.

なお、図８に示すように、ツース盤７ａの舌片７５ａも、ツース盤７ｂの舌片７５ｂと同様の構成を有する傾斜部７５１ａを備えて構成されている。 In addition, as shown in FIG. 8, the tongue piece 75a of the tooth board 7a is also provided with the inclination part 751a which has the structure similar to the tongue piece 75b of the tooth board 7b.

図６に示すように、ツース盤７ｂのベース板７３ｂは、嵌合部７１ｂに対して舌片７５ｂとは反対側の側方に傾斜部７３１ｂを備えて構成されている。なお、図８に示すように、ツース盤７ｃのベース板７３ｃも、嵌合部７１ｃに対してツース盤７ｂ側の側方に傾斜部７３１ｃを備えている。 As shown in FIG. 6, the base plate 73b of the tooth board 7b includes an inclined portion 731b on the side opposite to the tongue piece 75b with respect to the fitting portion 71b. As shown in FIG. 8, the base plate 73c of the tooth board 7c also includes an inclined portion 731c on the side of the tooth board 7b with respect to the fitting portion 71c.

また、図６に示すように、ベース板７３ｂの表面には、左側の一部が下側にくぼんだ（段落ちした）表側段凹部７３１ｂが形成されている。また、ベース板７３ｂの裏面には、右側の一部が上側にくぼんだ（段落ちした）裏側段凹部７３３ｂが形成されている。 In addition, as shown in FIG. 6, a front side step recess portion 731b in which a part of the left side is recessed (stepped down) is formed on the surface of the base plate 73b. Further, on the back surface of the base plate 73b, a back-side step recess 733b in which a part of the right side is recessed (stepped down) is formed.

同様に、ベース板７３ａの表面には、図８に示すように、表側段凹部７３１ａが形成されている。一方、ベース板７３ａの裏面には裏側段凹部は形成されていない。また、ベース板７３ｃの裏面には裏側段凹部７３３ｃが形成されている。一方、ベース板７３ｃの表面には表側段凹部は形成されていない。 Similarly, as shown in FIG. 8, a front-side stepped recess 731a is formed on the surface of the base plate 73a. On the other hand, no back step recess is formed on the back surface of the base plate 73a. Further, a back-side recess 733c is formed on the back surface of the base plate 73c. On the other hand, no front side step recess is formed on the surface of the base plate 73c.

図４（Ｂ）（Ｃ）に示すように、ツース盤７ｂ，７ｃは、それぞれ、突起部７７ｂ，７７ｃを更に備えている。突起部７７ｂ，７７ｃは、ツース盤７ｂ，７ｃのうち、バケット５の底板５１に装着される側とは反対側の表面において突起している。ここでは、突起部７７ｂ，７７ｃは、それぞれ、略四角錐台形状を有している。 As shown in FIGS. 4B and 4C, the tooth boards 7b and 7c further include protrusions 77b and 77c, respectively. The protrusions 77b and 77c protrude on the surface of the tooth boards 7b and 7c opposite to the side of the bucket 5 that is attached to the bottom plate 51. Here, each of the projecting portions 77b and 77c has a substantially quadrangular frustum shape.

また、図７に示すように、ツース盤７ｂのベース板７３ｂの右側方部分は、バケット５側の端部７３３ｂが舌片７５ｂの傾斜部７５１ｂの傾斜が開始する開始位置に位置するように構成される。当該開始位置は、傾斜部７５１ｂの厳密な傾斜開始位置ＳＴを示すものではなく、当該傾斜開始位置ＳＴを若干過ぎた位置であってもよい。ここでは、端部７３が傾斜部７５１ｂの傾斜開始位置ＳＴを若干過ぎた位置に配置されている。 Further, as shown in FIG. 7, the right side portion of the base plate 73b of the tooth board 7b is configured such that the end portion 733b on the bucket 5 side is located at the start position where the inclination of the inclined portion 751b of the tongue piece 75b starts. Is done. The start position does not indicate the exact inclination start position ST of the inclined portion 751b, and may be a position slightly beyond the inclination start position ST. Here, the end portion 73 is disposed at a position slightly past the inclination start position ST of the inclined portion 751b.

以上のような３枚のツース盤７ａ〜７ｃは、いずれも、本発明に係るツース盤の一例である。 Each of the three tooth machines 7a to 7c as described above is an example of the tooth machine according to the present invention.

具体的には、図４（Ａ）に示すツース盤７ａでは、ベース板７３ａの右側方部分が本発明に係る第１側方板の一例となり、舌片７５ａが本発明に係る第２側方板の一例となる。そして、舌片７５ａの傾斜部７５１ａが本発明に係る傾斜部の一例となる。すなわち、ツース盤７ａは、第２側方板に対して傾斜部が設けられたツース盤の一例である。 Specifically, in the tooth board 7a shown in FIG. 4A, the right side portion of the base plate 73a is an example of the first side plate according to the present invention, and the tongue piece 75a is the second side plate according to the present invention. An example of a plate. The inclined portion 751a of the tongue piece 75a is an example of the inclined portion according to the present invention. That is, the tooth board 7a is an example of the tooth board provided with an inclined portion with respect to the second side plate.

図４（Ｂ）に示すツース盤７ｂでは、ベース板７３ｂの右側方部分が本発明に係る第１側方板の一例となり、舌片７５ｂが本発明に係る第２側方板の一例となる。そして、舌片７５ｂの傾斜部７５１ｂと、ベース板７３ｂの右側方部分に設けられた傾斜部７３１ｂとの双方が本発明に係る傾斜部の一例となる。すなわち、ツース盤７ｂは、第１側方板と第２側方板との双方に傾斜部が設けられたツース盤の一例である。 In the tooth board 7b shown in FIG. 4B, the right side portion of the base plate 73b is an example of the first side plate according to the present invention, and the tongue piece 75b is an example of the second side plate according to the present invention. . And both the inclination part 751b of the tongue piece 75b and the inclination part 731b provided in the right side part of the base board 73b become an example of the inclination part which concerns on this invention. That is, the tooth board 7b is an example of a tooth board in which inclined portions are provided on both the first side plate and the second side plate.

図４（Ｃ）に示すツース盤７ｃでは、ベース板７３ｃの右側方部分が第１側方板の一例となり、ベース板７３ｃの左側方部分が第２側方板の一例となる。そして、ベース板７３ｃの右側方部分に設けられた傾斜部７３１ｃが本発明に係る傾斜部の一例となる。すなわち、ツース盤７ｃは、第１側方板に対して傾斜部が設けられたツース盤の一例である。 In the tooth board 7c shown in FIG. 4C, the right side portion of the base plate 73c is an example of a first side plate, and the left side portion of the base plate 73c is an example of a second side plate. And the inclined part 731c provided in the right side part of the base board 73c becomes an example of the inclined part which concerns on this invention. That is, the tooth board 7c is an example of a tooth board provided with an inclined portion with respect to the first side plate.

また、ツース盤７ａ〜７ｃは、互いに組み合わされた状態（図８参照）で、バケット５の底板５１に装着される（図２（Ａ）（Ｂ））。 Further, the tooth boards 7a to 7c are mounted on the bottom plate 51 of the bucket 5 in a combined state (see FIG. 8) (FIGS. 2A and 2B).

具体的には、ツース盤７ａとツース盤７ｂとが組み合わされ、ツース盤７ｂとツース盤７ｃとが組み合わされることにより、３枚のツース盤７ａ〜７ｃが並設された状態で底板５１に装着される。 Specifically, the tooth board 7a and the tooth board 7b are combined, and the tooth board 7b and the tooth board 7c are combined to attach the three tooth boards 7a to 7c to the bottom plate 51 in parallel. Is done.

具体的には、図８に示すように、ツース盤７ａの表側段凹部７３１ａと舌片７５ａとの間（図５（Ａ）の隙間Ｓａ）に、ツース盤７ｂのベース板７３ｂの右側方部分が挿入され、ツース盤７ａの表側段凹部７３１ａとツース盤７ｂの裏側段凹部７３３ｂとが重なり合う。これに伴って、ツース盤７ａの傾斜部７５１ａの裏面が、ツース盤７ｂの傾斜部７３１ｂの表面に対向する。 Specifically, as shown in FIG. 8, a portion on the right side of the base plate 73 b of the tooth board 7 b is provided between the front-side recessed part 731 a of the tooth board 7 a and the tongue piece 75 a (gap Sa in FIG. 5A). Is inserted, and the front side step concave portion 731a of the tooth board 7a and the back side step concave portion 733b of the tooth board 7b overlap each other. Along with this, the back surface of the inclined portion 751a of the tooth board 7a faces the surface of the inclined portion 731b of the tooth board 7b.

ツース盤７ａとツース盤７ｂとの関係において、ツース盤７ａを本発明に係るツース盤の一例として捉えた場合、ツース盤７ｂが本発明に係る隣接ツース盤の一例となる。 In the relationship between the tooth board 7a and the tooth board 7b, when the tooth board 7a is regarded as an example of the tooth board according to the present invention, the tooth board 7b is an example of the adjacent tooth machine according to the present invention.

一方、ツース盤７ｂを本発明に係るツース盤の一例として捉えた場合、ツース盤７ａが本発明に係る隣接ツース盤の一例となる。 On the other hand, when the tooth board 7b is regarded as an example of the tooth board according to the present invention, the tooth board 7a is an example of the adjacent tooth board according to the present invention.

また、ツース盤７ａ及びツース盤７ｂは、本発明に係るツース盤構造の一例でもある。この場合、ツース盤７ａは本発明に係る第１ツース盤の一例であり、ツース盤７ｂは本発明に係る第２ツース盤の一例である。 Further, the tooth board 7a and the tooth board 7b are also examples of the tooth board structure according to the present invention. In this case, the tooth board 7a is an example of a first tooth board according to the present invention, and the tooth board 7b is an example of a second tooth board according to the present invention.

また、図８に示すように、ツース盤７ｂの表側段凹部７３１ｂと舌片７５ｂとの間（図５（Ｂ）の隙間Ｓｂ）に、ツース盤７ｃのベース板７３ｃの右側方部分が挿入され、ツース盤７ｂの表側段凹部７３１ｂとツース盤７ｃの裏側段凹部７３３ｃとが重なり合う。これに伴って、ツース盤７ｂの傾斜部７５１ｂの裏面が、ツース盤７ｃの傾斜部７３１ｃの表面に対向する。 Further, as shown in FIG. 8, the right side portion of the base plate 73c of the tooth board 7c is inserted between the front side stepped recess 731b of the tooth board 7b and the tongue piece 75b (gap Sb in FIG. 5B). The front side step recess 731b of the tooth board 7b and the back side step recess 733c of the tooth board 7c overlap. Accordingly, the back surface of the inclined portion 751b of the tooth board 7b faces the surface of the inclined portion 731c of the tooth board 7c.

ツース盤７ｂとツース盤７ｃとの関係において、ツース盤７ｂを本発明に係るツース盤の一例として捉えた場合、ツース盤７ｃが本発明に係る隣接ツース盤の一例となる。 In the relationship between the tooth board 7b and the tooth board 7c, when the tooth board 7b is regarded as an example of the tooth board according to the present invention, the tooth board 7c is an example of the adjacent tooth machine according to the present invention.

一方、ツース盤７ｃを本発明に係るツース盤の一例として捉えた場合、ツース盤７ｂが本発明に係る隣接ツース盤の一例となる。 On the other hand, when the tooth board 7c is regarded as an example of the tooth board according to the present invention, the tooth board 7b is an example of the adjacent tooth board according to the present invention.

また、ツース盤７ｂ及びツース盤７ｃは、本発明に係るツース盤構造の一例でもある。この場合、ツース盤７ｂは本発明に係る第１ツース盤の一例であり、ツース盤７ｃは本発明に係る第２ツース盤の一例である。 The tooth board 7b and the tooth board 7c are also examples of the tooth board structure according to the present invention. In this case, the tooth board 7b is an example of a first tooth board according to the present invention, and the tooth board 7c is an example of a second tooth board according to the present invention.

＜２．効果＞
以上のように、本実施形態では、ツース盤７ａ〜７ｃがバケット５の底板５１に装着された際、底板５１の先端縁部５１ｅが傾斜部７５１ａ，７３１ｂ，７５１ｂ，７３１ｃ（図４（Ａ）〜（Ｃ））により覆われる（図２（Ａ）（Ｂ）及び図７参照）。そのため、対土作業において、土砂や石等が底板５１の先端縁部５１ｅに当たらずに済み、先端縁部５１ｅの摩耗を抑制することが可能である。 <2. Effect>
As described above, in the present embodiment, when the tooth boards 7a to 7c are attached to the bottom plate 51 of the bucket 5, the front edge portion 51e of the bottom plate 51 is inclined portions 751a, 731b, 751b, 731c (FIG. 4A). To (C)) (see FIGS. 2A and 2B and FIG. 7). For this reason, earth and sand, stones and the like do not hit the tip edge portion 51e of the bottom plate 51 in the work against soil, and wear of the tip edge portion 51e can be suppressed.

また、バケット５の底板５１の先端縁部５１ｅと各アダプタ６ａ〜６ｃとの溶接部分についても傾斜部７５１ａ，７３１ｂ，７５１ｂ，７３１ｃにより覆われるので、対土作業に伴う当該溶接部分の摩耗を抑制することが可能である。 Moreover, since the welding part of the front-end edge part 51e of the bottom plate 51 of the bucket 5 and each adapter 6a-6c is also covered with the inclination part 751a, 731b, 751b, 731c, the wear of the said welding part accompanying soil work is suppressed. Is possible.

以上のように、本実施形態では、バケット５自体の寿命を延ばすことができ、バケット５の交換に伴うコストを低減することが可能である。 As described above, in the present embodiment, the life of the bucket 5 itself can be extended, and the cost associated with the replacement of the bucket 5 can be reduced.

また、本実施形態では、傾斜部７５１ａ，７３１ｂ，７５１ｂ，７３１ｃが先端縁部５１ｅ側に反り上がっているため、先端縁部５１ｅとツース盤７ａ〜７ｃとの間に隙間が生じ難い。その結果、対土作業において、先端縁部５１ｅとツース盤７ａ〜７ｃとの間から土砂や石が抜け落ち難くなり、作業効率が向上する。 Further, in the present embodiment, since the inclined portions 751a, 731b, 751b, and 731c are warped to the tip edge portion 51e side, a gap is hardly generated between the tip edge portion 51e and the tooth boards 7a to 7c. As a result, in the work against soil, earth and sand and stones are unlikely to fall out between the front edge 51e and the tooth boards 7a to 7c, and work efficiency is improved.

また、本実施形態では、図８に示すように、舌片７５ａとベース板７３ａの左側方部分との間に、ベース板７３ｂの右側方部分が配置され、傾斜部７５１ａが傾斜部７３１ｂに沿うように構成されている。そのため、たとえば、掘削作業時にツース盤７ａに荷重が加わった際に舌片７５ａの傾斜部７５１ａがベース板７３ｂの傾斜部７３１ｂに接触して支持される。その結果、ツース盤７ａとアダプタ６ａとを固定する固定部材にかかる負荷が低減され、弾性ピンやロックピンで構成される固定部材が破損し難くなる。 In the present embodiment, as shown in FIG. 8, the right side portion of the base plate 73b is arranged between the tongue piece 75a and the left side portion of the base plate 73a, and the inclined portion 751a is along the inclined portion 731b. It is configured as follows. Therefore, for example, when a load is applied to the tooth board 7a during excavation work, the inclined portion 751a of the tongue piece 75a contacts and is supported by the inclined portion 731b of the base plate 73b. As a result, the load applied to the fixing member that fixes the tooth board 7a and the adapter 6a is reduced, and the fixing member formed of an elastic pin or a lock pin is not easily damaged.

同様に、舌片７５ｂとベース板７３ｂの左側方部分との間に、ベース板７３ｃの右側方部分が配置され、傾斜部７５１ｂが傾斜部７３１ｃに沿うように構成されている。そのため、ツース盤７ｃとアダプタ６ｃとを固定する固定部材にかかる負荷が低減される。 Similarly, the right side portion of the base plate 73c is disposed between the tongue piece 75b and the left side portion of the base plate 73b, and the inclined portion 751b is configured along the inclined portion 731c. Therefore, the load applied to the fixing member that fixes the tooth board 7c and the adapter 6c is reduced.

また、本実施形態では、図８に示すように、ツース盤７ａに表側段凹部７３１ａが設けられ、ツース盤７ｂに裏側段凹部７３３ｂが設けられている。そのため、アダプタ６ａ，６ｂの取り付け位置に応じて、ツース盤７ａ，７ｂを左右方向にスライド移動させることが可能である。ツース盤７ｂ，７ｃについても同様である。そのため、ツース盤７ａ〜７ｃを異なるサイズのバケットに取り付けることが可能である。 Moreover, in this embodiment, as shown in FIG. 8, the front side recessed part 731a is provided in the tooth board 7a, and the back side step recessed part 733b is provided in the tooth board 7b. Therefore, the tooth boards 7a and 7b can be slid in the left-right direction according to the attachment positions of the adapters 6a and 6b. The same applies to the tooth boards 7b and 7c. Therefore, it is possible to attach the tooth boards 7a to 7c to buckets of different sizes.

また、本実施形態では、図８に示すように、舌片７５ａがベース板７３ｂの傾斜部７３１ｂと突起部７７ｂとの間に挟み込まれるような形で配置され、傾斜部７５１ａと傾斜部７３１ｂとが係合している。同様に、舌片７５ｂがベース板７３ｃの傾斜部７３１ｃと突起部７７ｃとの間に挟み込まれるような形で配置され、傾斜部７５１ｂと傾斜部７３１ｃとが係合している。 Further, in the present embodiment, as shown in FIG. 8, the tongue piece 75a is disposed so as to be sandwiched between the inclined portion 731b and the protruding portion 77b of the base plate 73b, and the inclined portion 751a and the inclined portion 731b are arranged. Are engaged. Similarly, the tongue piece 75b is disposed so as to be sandwiched between the inclined portion 731c and the protrusion 77c of the base plate 73c, and the inclined portion 751b and the inclined portion 731c are engaged.

そのため、対土作業におけるツース盤７ａとツース盤７ｂとのがたつきを抑制すると共に、ツース盤７ｂとツース盤７ｃとのがたつきを抑制することが可能である。 Therefore, it is possible to suppress the rattling between the tooth machine 7a and the tooth machine 7b in the soil work and to suppress the rattling between the tooth machine 7b and the tooth machine 7c.

また、アダプタ６ａとツース盤７ａとを固定する固定部材が破損した場合には、舌片７５ａが左側に隣接するツース盤７ｂの突起部７７ｂに係合（当接）するため、ツース盤７ａの脱落を防止することが可能である。 When the fixing member for fixing the adapter 6a and the tooth board 7a is damaged, the tongue piece 75a engages (contacts) with the protrusion 77b of the tooth board 7b adjacent to the left side. It is possible to prevent the dropout.

また、アダプタ６ｂとツース盤７ｂとを固定する固定部材が破損した場合には、傾斜部７３１ｂが右側に隣接するツース盤７ａの傾斜部７５１ａに係合するため、ツース盤７ｂの脱落を抑制することが可能である。 Further, when the fixing member that fixes the adapter 6b and the tooth board 7b is damaged, the inclined part 731b is engaged with the inclined part 751a of the tooth board 7a adjacent to the right side, and therefore, the dropping of the tooth board 7b is suppressed. It is possible.

さらに、アダプタ６ｃとツース盤７ｃとを固定する固定部材が破損した場合には、傾斜部７３１ｃが右側に隣接するツース盤７ｂの傾斜部７５１ｂに係合するため、ツース盤７ｃの脱落を抑制することが可能である。 Furthermore, when the fixing member that fixes the adapter 6c and the tooth board 7c is damaged, the inclined part 731c engages with the inclined part 751b of the tooth board 7b adjacent to the right side, and thus the dropping of the tooth board 7c is suppressed. It is possible.

また、本実施形態では、図７に示すように、舌片７５ｂの下側に配置されるベース板７３ｂの端部７３３ｂが傾斜部７５１ｂの傾斜が開始する開始位置に位置するように構成されている。このため、傾斜部７５１ｂにより底板５１の先端縁部５１ｅを保護しつつ、ベース板７３ａを軽量化することが可能である。 Further, in the present embodiment, as shown in FIG. 7, the end portion 733b of the base plate 73b arranged below the tongue piece 75b is configured to be positioned at a start position where the inclination of the inclined portion 751b starts. Yes. For this reason, it is possible to reduce the weight of the base plate 73a while protecting the tip edge portion 51e of the bottom plate 51 by the inclined portion 751b.

＜３．変形例＞
本発明によるツース盤は上述した実施の形態に限定されず、特許請求の範囲に記載した範囲で種々の変形や改良が可能である。 <3. Modification>
The tooth board by this invention is not limited to embodiment mentioned above, A various deformation | transformation and improvement are possible in the range described in the claim.

例えば、上記実施形態では、図６及び図７に示すように、傾斜部７５１ｂ及び傾斜部７３１ｂが、傾斜開始位置から端部まで一定の角度で傾斜している場合を例示したが、これに限定されない。 For example, in the above embodiment, as illustrated in FIGS. 6 and 7, the case where the inclined portion 751b and the inclined portion 731b are inclined at a constant angle from the inclination start position to the end portion is illustrated, but the present invention is not limited thereto. Not.

図９及び図１０に示すように、傾斜部７３１ｄが、位置ＰＴ１から位置ＰＴ２まで所定角度で傾斜し、位置ＰＴ２から位置ＰＴ３まで当該所定角度よりも小さな角度で傾斜するようにしてもよい。詳細な図示は省略するが、図９に示す舌片７５ｄの傾斜部７５１ｄについても同様である。 As shown in FIGS. 9 and 10, the inclined portion 731d may be inclined from the position PT1 to the position PT2 by a predetermined angle, and may be inclined from the position PT2 to the position PT3 by an angle smaller than the predetermined angle. Although not shown in detail, the same applies to the inclined portion 751d of the tongue piece 75d shown in FIG.

ここで、位置ＰＴ１は、傾斜部７３１ｄ及び傾斜部７５１ｄの傾斜が開始する位置である。位置ＰＴ２は、ツース盤７ｄをバケット５の底板５１に装着して水平面に載置した状態において、先端縁部５１ｅよりも高い位置である。位置ＰＴ３は、傾斜部７３１ｄの端部が配置される位置である。 Here, the position PT1 is a position where the inclined portions 731d and 751d start to be inclined. The position PT2 is a position higher than the tip edge portion 51e in a state where the tooth board 7d is mounted on the bottom plate 51 of the bucket 5 and placed on the horizontal plane. The position PT3 is a position where the end of the inclined portion 731d is disposed.

以上のように本発明にかかるツース盤は、例えば、作業機械のバケットの先端縁部に装着するのに適している。 As described above, the tooth machine according to the present invention is suitable, for example, for mounting on the front end edge portion of a bucket of a work machine.

１油圧ショベル、２下部走行体、３上部旋回体、４作業アタッチメント、
５バケット、６ａ〜６ｃアダプタ、７ａ〜７ｃツース盤、８固定部材、
５１底板、５１ｅ先端縁部、７１ａ〜７１ｃ嵌合部、７３ａ〜７３ｃベース板、
７５ａ，７５ｂ舌片、７７ｂ，７７ｃ突起部、７３１ａ，７３１ｂ表側段凹部、
７３３ｂ，７３３ｃ裏側段凹部、７５１ａ，７３１ｂ，７５１ｂ，７３１ｃ傾斜部、
ＰＴ１〜ＰＴ３位置、Ｓａ，Ｓｂ隙間
1 hydraulic excavator, 2 lower traveling body, 3 upper turning body, 4 work attachment,
5 bucket, 6a-6c adapter, 7a-7c tooth board, 8 fixing member,
51 bottom plate, 51e front edge, 71a-71c fitting part, 73a-73c base plate,
75a, 75b tongue, 77b, 77c protrusion, 731a, 731b front side step recess,
733b, 733c Back side step concave portion, 751a, 731b, 751b, 731c inclined portion,
PT1-PT3 position, Sa, Sb gap

Claims

A substantially rectangular tooth machine mounted on the bucket using an adapter attached to the leading edge of the bucket of the working machine,
A fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the adapter;
A first side plate located on a side of the fitting portion;
A second side plate located on a side opposite to the first side plate with respect to the fitting portion;
With
At least one of the first side plate and the second side plate has an end on the side attached to the bucket in the state where the tooth board is attached to the bucket and placed on a horizontal surface. An inclined portion that is inclined upward toward the tip edge side so as to be higher than the edge ,
A base plate integrally formed with the fitting portion and having the substantially rectangular shape;
The first side plate is configured as a part of the base plate,
The second side plate is configured as a tongue piece facing the surface of the base plate with a predetermined gap therebetween,
The adjacent tooth board, which is adjacent to the second side plate side with respect to the tooth board and is attached to the bucket via another adapter different from the adapter,
Another fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the other adapter;
A third side plate located on the side of the tooth board side with respect to the other fitting portion;
With
The tongue has the inclined portion,
In the state in which the adjacent tooth board is mounted on the bucket and placed on a horizontal plane, the third side plate is arranged such that the end on the side mounted on the bucket is higher than the tip edge. It has another inclined part inclined upward toward the tip edge side,
In a state in which the tooth board and the adjacent tooth board are combined, the third side plate is disposed in the predetermined gap, and the inclined portion of the tongue piece is the other inclination of the third side plate. A tooth board characterized by being configured along the section .

The tooth board according to claim 1 ,
The tooth board, wherein the base plate arranged on the back side of the tongue piece is configured such that an end portion on the tip edge side is located at a start position where the inclination portion starts to be inclined.

A substantially rectangular tooth machine mounted on the bucket using an adapter attached to the leading edge of the bucket of the working machine,
A fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the adapter;
A first side plate located on a side of the fitting portion;
A second side plate located on a side opposite to the first side plate with respect to the fitting portion;
With
At least one of the first side plate and the second side plate has an end on the side attached to the bucket in the state where the tooth board is attached to the bucket and placed on a horizontal surface. An inclined portion that is inclined upward toward the tip edge side so as to be higher than the edge,
The fitting portion and are integrally formed, further comprising a base plate having a substantially rectangular shape,
The first side plate is configured as a part of a base plate,
The second side plate is configured as a tongue piece facing the surface of the base plate with a predetermined gap therebetween,
The adjacent tooth board, which is adjacent to the first side plate side with respect to the tooth board and is attached to the bucket via another adapter different from the adapter,
Another fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the other adapter;
Another base plate integrally formed with the other fitting portion and having the substantially rectangular shape;
Another tongue piece located on the side of the tooth board side with respect to the other fitting portion, and facing the surface of the other base plate with a predetermined gap therebetween,
With
The first side plate has the inclined portion and a protruding portion that protrudes on the surface opposite to the side attached to the bucket,
In the state where the adjacent tooth board is mounted on the bucket and placed on a horizontal surface, the other tongue piece is arranged such that the end on the side mounted on the bucket is higher than the tip edge. It has other inclined parts inclined upward toward the edge side,
In a state where the tooth board and the adjacent tooth board are combined, the other tongue piece is disposed between the inclined portion and the protrusion of the first side plate, and the other tongue piece A tooth board, wherein the other inclined portion is configured to follow the inclined portion of the first side plate.

A substantially rectangular tooth machine mounted on the bucket using an adapter attached to the leading edge of the bucket of the working machine,
A fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the adapter;
A first side plate located on a side of the fitting portion;
A second side plate located on a side opposite to the first side plate with respect to the fitting portion;
With
At least one of the first side plate and the second side plate has an end on the side attached to the bucket in the state where the tooth board is attached to the bucket and placed on a horizontal surface. An inclined portion that is inclined upward toward the tip edge side so as to be higher than the edge,
The inclined portion is configured to be inclined at a first angle from a first position to a second position, and to be inclined at a second angle smaller than the first angle from the second position to the third position,
The first position is a position where the inclination of the inclined portion starts,
The second position is a position higher than the tip edge in a state where the tooth board is mounted on the bucket and placed on a horizontal plane.
The third position is a position at which an end of the inclined portion is disposed.

Tooth board structure,
A substantially rectangular first tooth board attached to the bucket via a first adapter attached to the leading edge of the bucket of the working machine;
A second tooth board having a substantially rectangular shape, which is attached to the bucket via a second adapter attached to the tip edge, and is adjacent to the first tooth board;
With
The first tooth board is
A first fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the first adapter;
A base plate integrally formed with the first fitting portion and having the substantially rectangular shape;
A tongue piece facing the surface of the base plate on the second tooth board side with a predetermined gap therebetween,
Have
The second tooth board is
A second fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the second adapter;
A side plate disposed on a side of the first tooth board side with respect to the second fitting portion;
Have
The tongue of the first tooth board is such that the end on the side attached to the bucket is higher than the tip edge when the tooth board is mounted on the bucket and placed on a horizontal surface. And a first inclined portion inclined upward toward the tip edge side,
The side plate of the second tooth board is:
In a state where the tooth board is mounted on the bucket and placed on a horizontal plane, the end on the side to be mounted on the bucket is higher toward the tip edge side so as to be higher than the tip edge. An inclined second inclined portion;
A protrusion protruding on the surface opposite to the side attached to the bucket;
Have
In a state where the first tooth board and the second tooth board are combined, the tongue piece is disposed between the second inclined portion and the protruding portion, and the first inclined portion is the second inclined portion. Tooth board structure characterized by being configured to follow.

A bucket of a work machine,
The bottom plate,
An adapter attached to the front edge of the bottom plate;
A substantially rectangular tooth board mounted using the adapter;
With
The tooth board is
A fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the adapter;
A first side plate located on a side of the fitting portion;
A second side plate located on a side opposite to the first side plate with respect to the fitting portion;
With
At least one of the first side plate and the second side plate has an end on the side attached to the bucket in the state where the tooth board is attached to the bucket and placed on a horizontal surface. An inclined portion that is inclined upward toward the tip edge side so as to be higher than the edge ,
A base plate integrally formed with the fitting portion and having the substantially rectangular shape;
The first side plate is configured as a part of the base plate,
The second side plate is configured as a tongue piece facing the surface of the base plate with a predetermined gap therebetween,
The adjacent tooth board, which is adjacent to the second side plate side with respect to the tooth board and is attached to the bucket via another adapter different from the adapter,
Another fitting portion that is arranged at substantially the center of the side to be attached to the bucket and is configured to be fitted to the other adapter;
A third side plate located on the side of the tooth board side with respect to the other fitting portion;
With
The tongue has the inclined portion,
In the state in which the adjacent tooth board is mounted on the bucket and placed on a horizontal plane, the third side plate is arranged such that the end on the side mounted on the bucket is higher than the tip edge. It has another inclined part inclined upward toward the tip edge side,
In a state in which the tooth board and the adjacent tooth board are combined, the third side plate is disposed in the predetermined gap, and the inclined portion of the tongue piece is the other inclination of the third side plate. It is comprised so that a part may be followed, The bucket characterized by the above-mentioned.