JPH0383247U

JPH0383247U -

Info

Publication number: JPH0383247U
Application number: JP14393289U
Authority: JP
Priority date: 1989-12-12
Filing date: 1989-12-12
Publication date: 1991-08-23

Description

[Brief explanation of drawings]

第１図はこの考案にかかるアタツチメントのう
ちアームの側面図、第２図は第１図のＤ−Ｄ断面
図、第３図は第１図のＥ−Ｅ断面図、第４図は第
１図のＧ−Ｇ断面図、第５図はこの考案にかかる
ブームのブームフート部の斜視図、第６図は第５
図のＦより見た上面板の平面図、第７図は従来技
術のアタツチメントの側面図、第８図は従来技術
のアームの側面図、第９図は第８図のＡ−Ａ断面
図、第１０図は第８図のＢ−Ｂ断面図、第１１図
は従来技術のブームのブームフート部を示す斜視
図、第１２図は従来技術のピンボスと側面板の溶
接部周辺を示す断面図である。１……アタツチメント、２，１６……アーム、
３，２４……ブーム、５，６，７，１２，１７，
１８，３３，２５……ピンボス、９，１５，３１
……下面板、１３，２９……上面板、１４，２２
，３２……側面板、１９，２６……段付肩部、３
０……突出舌部。 Figure 1 is a side view of the arm of the attachment according to this invention, Figure 2 is a sectional view taken along line DD in Figure 1, Figure 3 is a sectional view taken along line EE in Figure 1, and Figure 4 is a sectional view taken along line 1 in Figure 1. 5 is a perspective view of the boom foot section of the boom according to this invention, and FIG.
A plan view of the top plate seen from F in the figure, FIG. 7 is a side view of the attachment of the prior art, FIG. 8 is a side view of the arm of the prior art, FIG. 9 is a sectional view taken along line A-A in FIG. 8, Fig. 10 is a sectional view taken along line B-B in Fig. 8, Fig. 11 is a perspective view showing the boom foot portion of the boom of the prior art, and Fig. 12 is a sectional view showing the vicinity of the welded portion between the pin boss and side plate of the prior art. be. 1... Attachment, 2, 16... Arm,
3, 24...boom, 5, 6, 7, 12, 17,
18, 33, 25...pin boss, 9, 15, 31
...Bottom plate, 13, 29...Top plate, 14, 22
, 32... Side plate, 19, 26... Stepped shoulder, 3
0...Protruding tongue.

Claims

[Scope of utility model registration request]

In the work attachment attached to the front part of a small excavator, a stepped shoulder is formed around the entire outer circumference at the side end of the pin boss installed on the arm, boom, etc. of the attachment.
On the other hand, the side plate to be attached to the pin boss is provided with a hole into which the outer periphery of the stepped shoulder can be inserted and welded. A small shovel characterized in that a protruding tongue is formed at the left and right ends of the top plate or the bottom plate for the longitudinal end, and the protruding tongue and the stepped shoulder can be welded together. attachment structure.