Torque wrench

Patent metadata

Field	Value
Publication number	US-9566697-B2
Application number	US-201214374016-A
Country	US
Kind code	B2
Filing date	Sep 27, 2012
Priority date	Jan 25, 2012
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A top surface of a transmitter on a torque wrench is opposed to a position camera, and bolt holes to fix the transmitter to a wrench main body open on the top surface. The bolt holes are formed to four places so as to define a rectangle and extend in a thickness direction of the transmitter. The marker is attached to the top surface of a head of one of the bolts, which extends through a through bolt hole. When the transmitter is fixed to the main body using a bolt, the depth of a large diameter portion of the through bolt hole is larger than the total thickness of the bolt head portion and the marker. Therefore, the marker is disposed lower than an aperture surface of the bolt hole and the possibility of the marker being damaged during work is reduced.

First claim

The invention claimed is:

1. A torque wrench comprising:
a main body including a grip section and a lever having a lever head; and
at least one accessory fastened by fasteners to the main body,
wherein the at least one accessory has a plane imaged by an associated camera for position confirmation, and passage holes of the fasteners open on the plane, and
wherein, when the at least one accessory is attached to the main body, a head of the fasteners fall below a plane surface of an aperture of the passage holes of the fasteners open on the plane, and a marker for position confirmation is attached to a top surface of the head of each of the fasteners.

2. The torque wrench according to claim 1 , wherein the marker includes markers that are attached to four places that are at rectangular corners of the at least one accessory.

3. The torque wrench according to claim 2 , where, in addition to the markers placed on the four rectangular corners of the at least one accessory, the marker further includes two markers added to determine a direction of the torque wrench.

4. The torque wrench according to claim 1 , wherein the at least one accessory includes an indicator.

5. The torque wrench according to claim 4 , wherein the marker includes markers that are attached to four places that are at rectangular corners of the at least one accessory.

6. The torque wrench according to claim 5 , where, in addition to the markers placed on the four rectangular corners of the at least one accessory, the marker further includes two markers added to determine a direction of the torque wrench.

7. The torque wrench according to claim 1 , wherein the at least one accessory includes a transmitter.

8. The torque wrench according to claim 7 , wherein the marker includes markers that are attached to four places that are at rectangular corners of the at least one accessory.

9. The torque wrench according to claim 8 , where, in addition to the markers placed on the four rectangular corners of the at least one accessory, the marker further includes two markers added to determine a direction of the torque wrench.

10. The torque wrench according to claim 1 , wherein the fasteners comprise bolts.

11. The torque wrench according to claim 10 , wherein the marker includes markers that are attached to four places that are at rectangular corners of the at least one accessory.

12. The torque wrench according to claim 11 , where, in addition to the markers placed on the four rectangular corners of the at least one accessory, the marker further includes two markers added to determine a direction of the torque wrench.

13. The torque wrench according to claim 1 , wherein the fasteners comprise screws.

14. The torque wrench according to claim 13 , wherein the marker includes markers that are attached to four places that are at rectangular corners of the at least one accessory.

15. The torque wrench according to claim 14 , where, in addition to the markers placed on the four rectangular corners of the at least one accessory, the marker further includes two markers added to determine a direction of the torque wrench.

Assignees

• Honda Motor Co Ltd

Inventors

• Furuie Kou

Classifications

• B25B23/14 Primary

  Arrangement of torque limiters or torque indicators in wrenches or screwdrivers (couplings for transmitting rotation or clutches F16D; devices for measuring torque per se G01L) · CPC title

• B25B23/1425

  by electrical means · CPC title

• B25B23/1422

  torque indicators or adjustable torque limiters · CPC title

• B25B23/15

  having a mechanism to mark the work when the selected torque is applied to the work · CPC title