JPH0449266U

JPH0449266U -

Info

Publication number: JPH0449266U
Application number: JP9195790U
Authority: JP
Priority date: 1990-08-31
Filing date: 1990-08-31
Publication date: 1992-04-27

Description

[Brief explanation of the drawing]

第１図は本考案にかかる捩りシールが適用され
たピン継手部分の断面図、第２図は本考案の捩り
シールの第１実施例の装着断面図、第３図は第１
実施例のシール本体断面図、第４図は本考案の第
１実施例の標準取り付け状態を示し、ａは正面図
、ｂは側面図、第５図は第４図の変形状態を示し
、ａは正面図、ｂは側面図、第６図は本考案の捩
りシールの第２実施例の装着断面図、第７図は第
２実施例のシール本体断面図、第８図は本考案の
第２実施例の標準取り付け状態を示し、ａは正面
図、ｂは側面図、第９図は第８図の変形状態を示
し、ａは正面図、ｂは側面図、第１０図は本考案
の捩りシールの第３実施例の装着断面図、第１１
図は本考案の捩りシールの第４実施例の装着断面
図、第１２図は従来の掘削機の作業機に使用され
ているピン継手部を示す斜視図、第１３図は従来
のピン継手部の断面図、第１４図は第１３図に使
用されているダストシールの断面図である。１……第１部材（ブラケツト）、２……第２部
材（アーム先端部）、３……孔、４……ピン、５
……ブツシユ、６……空所、７……シール、８…
…シール本体、９……ブツシユ孔、１２……デイ
スク、１３，１４，１５……縁材、１６……シー
ル、１７……シール本体、１８〜２４……シリン
ダ、２５，２６，２７，２８，２９……縁材。 Fig. 1 is a sectional view of a pin joint part to which a torsion seal according to the present invention is applied, Fig. 2 is an installed sectional view of the first embodiment of the torsion seal of the present invention, and Fig.
A sectional view of the seal main body of the embodiment, FIG. 4 shows the standard installation state of the first embodiment of the present invention, a is a front view, b is a side view, and FIG. 5 is a modified state of FIG. is a front view, b is a side view, FIG. 6 is a sectional view of the second embodiment of the torsion seal of the present invention installed, FIG. 7 is a sectional view of the seal main body of the second embodiment, and FIG. 9 shows a modified state of FIG. 8, a is a front view, b is a side view, and FIG. 10 is a front view of the present invention. Mounting sectional view of the third embodiment of the twist seal, No. 11
The figure is an installed sectional view of the fourth embodiment of the torsion seal of the present invention, Figure 12 is a perspective view showing a pin joint part used in a conventional excavator working machine, and Figure 13 is a conventional pin joint part. FIG. 14 is a cross-sectional view of the dust seal used in FIG. 13. 1... First member (bracket), 2... Second member (arm tip), 3... Hole, 4... Pin, 5
...butsuyu, 6...blank space, 7...sticker, 8...
...Seal body, 9...Button hole, 12...Disk, 13, 14, 15...Edge material, 16...Seal, 17...Seal body, 18-24...Cylinder, 25, 26, 27, 28 , 29...edge material.

Claims

[Claims for Utility Model Registration] 1. A second member is fitted between the separated first members, a pin is inserted into a hole passing through both members so that they can mutually rotate, and the In a pin joint in which a bushing that contacts a pin is provided and the pin is fixed to a first member, in a space formed between an end surface of the bushing of the second member and an opposing inner surface of the first member, A seal formed in an annular shape having a predetermined width by joining a plurality of seal bodies made of elastic bodies is housed, and the inner peripheral part of one end of the seal is joined to a pin close to the bush, and the seal other than the seal is housed. A twist seal characterized in that an outer peripheral portion of the end is joined to a bushing hole of the second member close to the inner surface of the first member. 2. Fitting the tip of the arm into a separate bracket on the bucket side, inserting a pin into the hole penetrating both to enable mutual rotation, and providing the tip of the arm with a bush that contacts the pin. , in a pin joint for a working machine of an excavator in which the pin is fixed to a bracket, a seal body made of a plurality of elastic bodies is joined to a space formed between the end face of the bush and the opposing inner surface of the bracket. houses a seal formed in an annular shape having a predetermined width, the inner circumferential portion of one end of the seal is joined to a pin proximate to the bush, and the outer circumferential portion of the other end of the seal is proximate to the inner surface of the bracket. The twist seal is connected to a bushing hole at the tip of the arm.