JPS5932518Y2 - spanner - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to a special spanner that can quickly and smoothly tighten and remove nuts such as propane gas cylinders.

In conventional spanners of this type, the main body and the clamping slot for clamping the nuts are integrally molded, so the wrench can be removed by rotating the nut by a certain angle and then inserted into the nut. The disadvantage was that it required a lot of trouble and effort, as it had to be turned around and the same thing had to be done over and over again.

Furthermore, it has the disadvantage that the corners of the nuts are worn away, and it is difficult to carry out work at night.

The present invention has been devised in view of these points, and its contents will be explained below using illustrated examples.

Reference numeral 1 denotes a spanner main body, and has a groove 4 at one end 2 in which a nut rotating body 3 is loosely fitted, and a side wall 5 of the groove 4 is partially cut out to provide a notch 6.

The nut rotating body 3 is formed from a nut holding opening groove 7 and ratchet teeth 8 provided on the circumference.
When the ratchet tooth 8 is fitted loosely into the groove 4, a portion of the ratchet tooth 8 should not be exposed to the cut hole 6.

9 is the cover body, and the spanner body 1 is attached by welding, screwing, etc.
It is fixed to one end 2 of the.

Reference numeral 10 denotes a through hole provided in the spanner body 1, which is designed to communicate with the above-mentioned kerf opening 6, through which a ratchet locking rod 11 having a hammer portion 15 is inserted.

Reference numeral 12 designates a so-called rotation check mechanism which has a locking pawl portion that engages with the ratchet teeth 8 of the nut rotating body 3 described above to prevent the rotating body 3 from rotating in the direction of arrow A.

Reference numeral 13 denotes a support shaft, which is provided to deflect the ratchet locking rod 11 having a hammer portion 15 in the left-right direction.

Reference numeral 14 denotes a ball stopper mechanism that prevents unnecessary angular rotation of the ratchet locking rod 11.

16 and 17 are declination relief parts of the ratchet locking rod 11;
Numeral 8 is a synthetic resin type wedge which is press-fitted into the declination relief part 11 when the product of the present invention is used as a non-merchandising unit, thereby making its function even stronger.

Normally, when used as a hammer, it is sufficient not to use this wedge 18.

19 is a bag nut. 20 is the other end 2 of the spanner body 1
This is the nail removal groove part provided in 1.

Next, the manner of use of the present invention based on the above configuration will be explained.

As shown in FIG. 3, after the cap nut 19 is clamped in the nut clamping opening groove γ of the nut rotating body 3, when the spanner main body 1 is rotated at an angle in the direction of arrow B, the ratchet locking rod 11
．． The cap nut 9 can be tightened by rotating the cap nut 9 in the same direction through the locking claw portion 12, the ratchet teeth 8, and the nut rotating body 3.

After deviating by a certain angle, when the spanner main body 1 is reversely rotated in the direction of arrow C, the ratchet locking rod 11 is rotated in the direction of the arrow about the support shaft 13 and the ball stopper mechanism 14 is rotated. The locking claw portion 12 is compressed and disengaged from the ratchet tooth 8 that was previously engaged, and the next succeeding ratchet tooth 8 is released.
engage with.

Thereafter, by repeating the same operations as described above, the cap nut 19 is rotated in the direction of arrow E and tightened.

Also, due to this repeated operation, the relative positional relationship between the nut rotating body 3 and the one end portion 2 of the spanner body 1 is shifted, and the nut rotating body 3
The nut clamping groove 7 is located at either edge 2A of the end 2.
When approaching the
The locking claw part 12 is set in the state of the dowel 1 with the locking claw part 12 removed from the ratchet teeth 8, and the nut rotating body 3 is set in a free state by deviating the nut in the direction of the arrow F as the center. .

When the pressing force in the direction of arrow F is released at the corrected position, the ratchet locking rod 11 is reversed by the expanding force of the ball stopper mechanism 14, and the locking pawl portion 12 engages with an appropriate ratchet tooth 8 of the nut rotating body 3. It can be used for next time.

In addition, when using the product of the present invention as a hammer, by removing the wedge 18 from the spanner body and press-fitting it into the deflection relief part 17, the ratchet locking rod 11 can be used as a powerful hammer without being deflected by the striking force. obtain.

The present invention has the structure and function as described above, and in particular, the ratchet locking rod 11 is used in common for the rotation control of the ratchet rotating body 3 and the controller, so the structure is simplified and can be made into one piece. , it is possible to reduce the cost by not requiring separate parts, that is, two parts, dedicated to the function of the ratchet as in the past. Since it is engaged with the ratchet teeth 8 provided on the periphery of the moving body 3 and the shaft 18 is press-fitted into the deviation angle relief part 11, there is no fear that the ratchet locking rod 11 will deviate around the support shaft 13 as a fulcrum. Tightening allows a strong rotational force, and there is no risk that the ratchet locking rod 11 will be deflected due to the impact force when used as a hammer.

Furthermore, when used as a hammer, the striking force is distributed to the ratchet teeth 8, the support shaft 3, and the wedge 18, so the support shaft 3
It is possible to reduce the load on the product and prevent its breakage.

Furthermore, by appropriately rotating the nut rotating body 3, the engagement position with the locking pawl portion 12 can be variably set, so that the position where the load is applied by the striking force can be varied, and the ratchet teeth 8 can be concentrated. It can prevent physical wear and tear and can withstand long-term use.

Further, since the hammer portion 15 formed on the head of the ratchet locking rod 11 protrudes outward from the one end portion 2, it is possible to reliably apply force to the target.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the invented product, Figure 2 is a view of Figure 1 seen from the P-P direction, Figure 3 is a principle explanatory diagram of the main parts of the invented product, and Figure 4 is the first It is a figure seen from the QQ direction. 1... Spanner body, 3... Nut rotating body, 6...
Notch opening, 8... ratchet teeth, 11... ratchet locking rod.

Claims (1)

[Scope of utility model registration request] In the ratchet locking rod 11 that is rotatably supported on the spanner body 1 by a support shaft 13, a hammer portion 15 is attached to the head of the ratchet locking rod 11 outward from one end 2 of the spanner body 1. At the same time, a ball stopper mechanism 14 mounted below the support shaft 13 connects a locking pawl 12 projecting from the ratchet locking rod 11 to a ratchet tooth 8 provided on the periphery of the nut rotating body 3. On the other hand, the wedge 18
This wrench is designed to be press-fitted into the declination relief part 17 formed in the spanner body 1.