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Spanner torque wrench with marking function

A torque wrench and marked technology, applied in the field of wrench-type torque wrenches, to achieve the effect of simple structure and smooth stamping action

Active Publication Date: 2013-01-02
ISUZU MOTORS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition, in the wrench-type torque wrench shown in Patent Document 2, the rod for marking moves only slightly according to the amount of movement of the arm, so it is difficult to reliably labeling issues

Method used

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  • Spanner torque wrench with marking function
  • Spanner torque wrench with marking function
  • Spanner torque wrench with marking function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0056] Below, according to figure 1 , 2 One embodiment of the present invention will be described.

[0057] figure 1 It is a partial cross-sectional view showing the whole wrench-type torque wrench 1 with a marking function, and a head member 3 is rotatably attached to the front end side of a cylindrical torque wrench body 2 . The head member 3 has a wrench part 30 at the front end, and the other end extends into the torque wrench body 2 , and is connected to one side of the toggle mechanism 4 provided in the torque wrench body 2 . The other side of the toggle mechanism 4 is connected to the side of the torque wrench main body 2 .

[0058] The toggle mechanism 4 releases the fixed state between the side of the torque wrench body 2 and the side of the head member 3 by means of a toggle action when tightening at a predetermined torque, and the head part is held in place by the tightening force applied to the torque wrench body 2 . The part 3 does not follow, and the head p...

Embodiment approach 2

[0074] In addition, in the above-mentioned embodiment, the stamp body is locked against rotation by the stamp cover, but it is also possible to have a rotation stop structure that locks the rotation by the shape of the ink cartridge and the shape of the stamp holder in conjunction with each other.

[0075] image 3 (a) is, by making the cross-sectional shape of the ink cartridge 60 non-circular, and making the accommodating hole 70a of the stamp holder 70 which accommodates it also non-circular, the sealing of the stamp main body including the ink cartridge is performed thereby. change.

[0076] image 3 (b) Ink cartridge 61 and stamp holder 71 are respectively provided with concavo-convex shapes along the longitudinal direction of the torque wrench main body, and are engaged with each other so that the movement in the longitudinal direction of the ink cartridge 61 can be performed, and the ink cartridge can be included. Inside the stop of the main body of the seal. In addi...

Embodiment approach 3

[0078] In each of the above-mentioned embodiments, an example in which the stamp main body is provided on the outer surface of the torque wrench main body 2 has been described, but the stamp main body may be provided on the outer surface of the torque wrench main body 2 as the present invention. according to Figure 4 , 5 to illustrate this method. In addition, the same code|symbol is attached|subjected to the structure similar to Embodiment 1 mentioned above, and the description is abbreviate|omitted or simplified.

[0079] In this embodiment, it is also the same as the above embodiment, such as Figure 4 , 5 As shown, a horizontal link 10 is installed at the end of the toggle mechanism 4 side of the head member 3, and one end of the vertical link 11 pivotally supported by the link fulcrum 12 is pivotally supported on the end of the transverse link 10. . One end of a horizontal link 13 is pivotally supported on the other end of the longitudinal link 11 . The horizontal ...

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PUM

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Abstract

A spanner torque wrench capable of making a mark on a bolt or a nut while avoiding interference with members around the bolt and the nut. The spanner torque wrench has a spanner section (30) for tightening a nut etc., a torque wrench body (2) connected to the spanner section (30) via a toggle mechanism (4), a stamp body disposed outside the torque wrench body (2) so as to be able to advance and recede in the longitudinal direction of the torque wrench body and having a stamp section (6a) at the head of the stamp body, a start-up section displaced in association with displacement of the toggle mechanism (4) caused by movement of the mechanism, and a transmission section for moving the stamp body forward by converting the displacement of the start-up section into longitudinal forward movement of the start-up section. The direction of at least the head of the stamp section (6a) is changed from the longitudinal direction to the direction toward the mouth of the spanner section, and the head can move forward from the rear side of the spanner section (30) into the mouth (3) while being guided by a guide groove (32) or a guide hole, formed in the spanner section (30), so as to communicate with the mouth.

Description

technical field [0001] The present invention relates to a wrench-type torque wrench with a marking function, which can activate a toggle mechanism when the tightening force on a bolt or a nut reaches a predetermined value, and can automatically mark with a seal. Background technique [0002] Among wrench-type torque wrenches used for tightening bolts and nuts, there is known a predetermined type of torque wrench in which the toggle mechanism operates to keep the tightening force constant when the tightening force reaches a predetermined value. Excessive or insufficient tightening force may occur. By appropriately using this wrench-type torque wrench, it is possible to perform a bolt tightening operation with a constant tightening force, and the like. [0003] On the other hand, as a measure to prevent forgetting to tighten bolts or nuts in the assembly process such as a production line, there are many cases where bolt tightening completion marks are implemented. Recently,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B23/15B25B23/143
CPCB25B23/15B25B23/1427
Inventor 山内克哉赤井和人今井博之
Owner ISUZU MOTORS LTD