Greasing device for clutch release mechanism

Patent metadata

Field	Value
Publication number	US-11333201-B2
Application number	US-201916434309-A
Country	US
Kind code	B2
Filing date	Jun 7, 2019
Priority date	Aug 31, 2018
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

A greasing device for feeding grease to a greasing requiring part accommodated inside a housing, the greasing device including: a first jig; a second jig; and a greasing portion, wherein the first jig has a base portion that abuts on the housing, and an insertion hole that penetrates the base portion, the second jig has an insertion portion that is inserted into the insertion hole of the first jig, and a stopper portion that comes into abutment on the base portion of the first jig when the insertion portion is inserted into the insertion hole, and the greasing portion feeds grease to the greasing requiring part while being positioned by the first jig and the second jig.

First claim

What is claimed is:

1. A greasing device configured to feed grease to a contact portion between a release bearing and a pressing part of a clutch release fork in a clutch release mechanism configured such that the pressing part presses the release bearing, the greasing device comprising:
a greasing pipe configured to extend from an outside of a clutch housing that houses a clutch main body including the release bearing toward the contact portion through a through-hole provided in the clutch housing, and to feed grease to the contact portion; and
a positioning part configured to position the greasing pipe by coming into contact with each of an inner surface of the through-hole and a flat surface of the clutch release fork.

2. The greasing device according to claim 1 , wherein:
the positioning part includes a first jig and a second jig, the first jig being provided with two or more positioning holes for positioning the greasing pipe, the second jig including an insertion part that is inserted into one of the two or more positioning holes and being configured such that the greasing pipe is positioned as the insertion part comes into contact with an inner surface of the one of the two or more positioning holes; and
the greasing pipe is fixed to the second jig and extends along the insertion part.

3. The greasing device according to claim 2 , wherein:
the pressing part has a two-pronged structure; and
the two or more positioning holes include a first hole and a second hole, the insertion part being inserted into the first hole to grease one prong of the two-pronged structure, the insertion part being inserted into the second hole to grease the other prong of the two-pronged structure.

4. The greasing device according to claim 2 , wherein the inner surface of the one of the two or more positioning holes includes a guide surface configured to allow the greasing pipe to be positioned at such a position that the greasing pipe does not come into contact with a component of the release bearing.

5. The greasing device according to claim 1 , wherein:
the greasing pipe is integrated with the positioning part;
the pressing part has a two-pronged structure; and
the positioning part includes a first contact surface and a second contact surface, the first contact surface coming into contact with the flat surface of the clutch release fork in a first state where the positioning part is mounted in the through-hole to grease one prong of the two-pronged structure, the second contact surface coming into contact with the flat surface of the clutch release fork in a second state where the positioning part is mounted in the through-hole to grease the other prong of the two-pronged structure.

6. The greasing device according to claim 5 , wherein the second state is a state where the integrated greasing pipe and positioning part are turned 180 degrees from the first state.

7. The greasing device according to claim 1 , wherein a leading end portion of the greasing pipe has an opening shaped so as to taper toward a leading end.

8. The greasing device according to claim 1 , wherein the greasing pipe is made of metal.

9. The greasing device according to claim 1 , wherein the greasing pipe is made of elastic material.

10. The greasing device according to claim 1 , wherein the greasing device includes an imaging device configured to take an image of an internal structure of the clutch housing on a leading end side of the greasing pipe.

11. A greasing device for feeding grease to a greasing requiring part accommodated inside a housing, the greasing device comprising:
a first jig;
a second jig; and
a greasing portion, wherein:
the first jig has a base portion that abuts on the housing, and an insertion hole that penetrates the base portion,
the second jig has an insertion portion that is inserted into the insertion hole of the first jig, and a stopper portion that comes into abutment on the base portion of the first jig when the insertion portion is inserted into the insertion hole, and
the greasing portion feeds grease to the greasing requiring part while being positioned by the first jig and the second jig.

12. The greasing device according to claim 11 , wherein the greasing portion is a greasing pipe inserted through the insertion portion of the second jig.

13. The greasing device according to claim 12 , wherein:
the housing is provided with a hole,
the first jig has a protrusion portion that protrudes from the base portion and that is inserted into the hole of the housing, and
a lateral surface of the protrusion portion abuts on an inner surface of the hole.

14. The greasing device according to claim 13 , wherein:
the first jig has a key portion that holds the first jig on the housing when the protrusion portion is inserted into the hole of the housing, and
the key portion is provided on a tip side of the protrusion portion, and is shaped in such a manner as to extend outward of an opening portion of the hole with the protrusion portion inserted in the hole.

15. The greasing device according to claim 12 , wherein the first jig is provided with a plurality of insertion holes identical to the insertion hole.

16. The greasing device according to claim 12 , further comprising:
photographing means for photographing an internal structure of the housing on a tip side of the greasing pipe.

17. A greasing method for feeding grease to a greasing requiring part accommodated inside a housing, the greasing method comprising:
a first step of attaching a first jig having a base portion and an insertion hole to the housing;
a second step of inserting a greasing pipe and a second jig into the insertion hole of the first jig with the first jig attached to the housing; and
a third step of feeding grease to the greasing requiring part from the greasing pipe,
wherein the second step includes a step of inserting an insertion portion of the second jig into the insertion hole of the first jig to a position where a stopper portion of the second jig abuts on the base portion of the first jig.

18. The greasing method according to claim 17 ,
wherein the insertion hole has a first hole and a second hole that penetrate the base portion, and further comprising:
a step of performing the second step and the third step for the second hole with the first jig attached to the housing, after performing the first to third steps for the first hole.

19. The greasing method according to claim 17 , wherein:
the housing is provided with a hole,
the first jig has a protrusion portion that protrudes from the base portion and that is inserted into the hole of the housing, and a key portion that holds the first jig on the housing when the protrusion portion is inserted into the hole of the housing,
the key portion is provided on a tip side of the protrusion portion, and is shaped in such a manner as to extend outward of an opening portion of the hole with the protrusion portion inserted in the hole, and
the first step includes a step of holding the first jig on the housing by the key portion.

20. The greasing method according to claim 17 , further comprising:
a step of photographing an internal structure of the housing by photographing means for photographing the internal structure of the housing on a tip side of the greasing pipe.

Assignees

• Toyota Motor Co Ltd

Inventors

• Takenaka Tetsuhiro

Classifications

• F16D23/14 Primary

  Clutch-actuating sleeves {or bearings}; Actuating members directly connected to clutch-actuating sleeves {or bearings} · CPC title

• F16D2023/141

  characterised by using a fork; Details of forks · CPC title

• F16C2361/43

  Clutches, e.g. disengaging bearing · CPC title

• F16D13/64

  Clutch-plates; Clutch-lamellae (brake-plates, brake-lamellae F16D65/12) · CPC title

• F16D13/585

  Arrangements or details relating to the mounting or support of the diaphragm on the clutch on the clutch cover or the pressure plate · CPC title