JOINT MECHANISM FOR ROBOT

• US 20100178101A1
• Filed: 05/26/2009
• Published: 07/15/2010
• Est. Priority Date: 01/10/2009
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: SHIH, CHOU-CHEN, DAY, CHIA-PENG
• Application Number:
  US12/471,544
• Publication Number:
  US 20100178101A1
• Time in Patent Office: Days
• US Class Current: 403/112
• CPC Class Codes: B25J 17/025 mounted in series
• CPC Class Codes: B25J 9/101 using limit-switches, -stops
• CPC Class Codes: Y10T 403/32549 including limit means
• CPC Class Codes: Y10T 403/32983 Rod in socket

Abstract

A joint mechanism includes a first rotary unit and a second rotary unit. The first rotary unit includes a base and a first joining end. The first joining end defines a first chamfered rim. The second rotary unit includes a second joining end to join to the first joining end. The second joining end defines a second chamfered rim. The first chamfered rim and the second chamfered rim cooperatively form a slanted groove. The groove communicates with an outside of the first and second rotary units and has an opening facing the base.

Claims

1. A joint mechanism, comprising:

a first rotary unit comprising a base and a first joining end, the first joining end defining a first chamfered rim; and

a second rotary unit comprising a second joining end to join to the first joining end, the second joining end defining a second chamfered rim, wherein the first chamfered rim and the second chamfered rim cooperatively form a slanted groove, and the groove communicates with an outside of the first and second rotary units and has an opening facing the base.

2. The joint mechanism of claim 1, wherein the first rotary unit further comprises a housing extending from the base, the first joining end is at an end of the housing opposite to the base;

the second rotary unit comprises a connecting seat and a mounting seat, the second joining end is at an end of the connecting seat opposite to the mounting seat.

3. The joint mechanism of claim 2, wherein the housing of the first rotary unit further comprises a first positioning portion;

the connecting seat of the second rotary unit forms a second positioning portion to engage with the first positioning portion.

4. The joint mechanism of claim 3, wherein the first positioning portion defines a first positioning hole, and the second positioning portion defines a second positioning hole;

when the first positioning hole and the second positioning hole are positioned axially to each other, a first state of the first rotary unit and the second rotary unit is defined.

5. The joint mechanism of claim 4, wherein the first rotary unit further comprises a limiting portion detachably fixed on the first positioning portion of the housing.

6. The joint mechanism of claim 5, wherein the limiting portion is made of rubber.

7. The joint mechanism of claim 1, wherein the housing further comprises a wire receptacle for receiving wires.

8. The joint mechanism of claim 2, wherein the first rotary unit further comprises a first mounting portion extending from the base and inside the housing;

the connecting seat of the second rotary unit further comprises a second mounting portion formed in the connecting seat and corresponding to the first mounting portion.

9. The joint mechanism of claim 8, wherein the connecting seat of the second rotary unit further comprises a plurality of strengthening ribs.

10. A joint mechanism comprising:

a first rotary unit comprising a first joining end, the first joining end defining a first chamfered rim, and an inner side of the first chamfered rim having a height larger than an outer side of the first chamfered rim; and

a second rotary unit comprising a second joining end to join to the first joining end, the second joining end defining a second chamfered rim, and an inner surface of the second chamfered rim having a length smaller than an outer surface of the second chamfered rim;

wherein the first rotary unit is positioned below the second rotary unit.

11. The joint mechanism of claim 10, wherein the first rotary unit further comprises a base and a housing extending from the base, the first joining end is at an end of the housing opposite to the base;

the second rotary unit comprises a connecting seat and a mounting seat, the second joining end is at an end of the connecting seat opposite to the mounting seat.

12. The joint mechanism of claim 11, wherein the housing of the first rotary unit further comprises a first positioning portion;

the connecting seat of the second rotary unit forms a second positioning portion to engage with the first positioning portion.

13. The joint mechanism of claim 12, wherein the first positioning portion defines a first positioning hole, and the second positioning portion defines a second positioning hole;

when the first positioning hole and the second positioning hole are positioned axially to each other, a first state of the first rotary unit and the second rotary unit is defined.

14. The joint mechanism of claim 13, wherein the first rotary unit further comprises a limiting portion detachably fixed on the first positioning portion of the housing.

15. A joint mechanism comprising:

a first rotary unit comprising a first joining end, the first joining end defining a first chamfered rim; and

a second rotary unit comprising a second joining end to join to the first joining end, the second joining end defining a second chamfered rim;

wherein the first and second chamfered rims are slanted, thus guiding contaminants away from a joining portion of the first joining end and the second joining end.