JP2003001571A - Spanner wrench using vertically rotatable worm gear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance usability by saving the time and effort conventionally required for adjusting the width of the pinching surface of a spanner wrench to a rotated part on several times when pinching, tightening and loosening a plurality of rotated members with different diameters. SOLUTION: A worm gear 1 vertically rotatable, and a female screw 9 and a brake 2 disposed parallel to the sliding direction of a movable jaw 6 are mounted on the opening/closing adjusting part of the movable jaw and a fixed jaw of the spanner wrench body. The female screw 9 and the brake 2 is provided with an irregularity having an angle nearly orthogonal to the sliding direction of the movable jaw, which is taken as a wheel and a brake.

Description

Detailed Description of the Invention

[0001]

Technical Field of the Invention The present invention is configured by a fixed jaw integrally formed with the main body and different parts facing each other with respect to the diameters of the rotated parts of nuts and bolts having various diameters. Adjustable spanner wrench that can easily adjust the distance between the movable jaw and both jaws.

[0002]

2. Description of the Related Art Conventionally, a movable spanner wrench includes a fixed jaw integrally formed with a main body and a movable jaw formed as a separate member and uses two cylindrical gears parallel to a sliding direction of the movable jaw. Therefore, the screw mechanism is directly manually operated to adjust the distance between the jaws with respect to the diameter of the rotated portion having various diameters and to clamp and rotate the rotated portion.

[0003]

[Problems to be Solved] There is a problem that it takes time and time to change and adjust the interval between the sandwiching noodles which are opposed to each other, by repeating the above-mentioned operation a plurality of times.

[0004]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the invention according to claim 1 is configured such that a movable jaw facing a fixed jaw integrally formed with a main body is constituted by a separate member, and is arranged in a sliding direction of the movable jaw. A parallel female screw is provided on the fixed jaw.The concavo-convex carved on this female screw is a concavo-convex angle that is orthogonal to the sliding direction of the movable jaw, and a worm that rotates and moves on the orbit of the female screw that is integrally configured with the main body. The gear is attached to the movable jaw by using the bearing shaft so that the movable jaw can be easily separated from or approached the opposed fixed jaw without manually operating the screw mechanism.

According to a second aspect of the present invention, in the adjustable spanner wrench of the first aspect, a worm gear, which is a movable mechanism of the movable jaw, is provided with pawls so that the movable mechanism cannot rotate and the movable jaw is moved. It has a pawl to fix and hold it in an arbitrary position.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In order to solve the above problems, the present invention provides a worm between FIG. 2A and FIG. The concavity and convexity of the gear 1 mesh with both the concavities and convexities so that the gear cannot rotate, and the movable jaw is fixed and held at an arbitrary position on the female screw and the pawl 9. As shown in FIG. 3, the unevenness of the worm gear 1 provided with the spring 3 between the opposing movable jaws 6 and fixed to the bearing shaft 4 except during pressing interferes with the unevenness of the female screw having the groove and the pawl 2. When the bearing shaft 4 is fixed and held in a non-rotatable state and the bearing shaft 4 is pressed in the direction in which the spring 3 is reduced, the worm gear 1 fixed to the bearing shaft 4 is carved on the teeth of the female screw and the pawls 2, 9. When the concave and convex portions are slid in the pressing direction and are moved to the female screw having the groove and the groove portion 8 provided in the pawl 2, the two sets of opposing pawls 2 and 9 are brought into contact with each other from the immovable state of the concave and convex. It is released from the non-moving state by the engagement of the unevenness with the screw 9, the unevenness of the worm gear 1 moves to the unevenness of the female screw 9 while rotating, and the movable jaw 6 is moved to an arbitrary position to release the pressing force. If Serial worm gear 1 as the unrotatable state, in which it has been configured to be able to hold and fix the movable jaw 6.

[0007]

EFFECTS OF THE INVENTION Since the present invention has the above-described structure, when the distance between the fixed jaw of the spanner wrench body 5 and the movable jaw 6 facing the fixed jaw is 25 mm, the upper and lower jaws come into contact with each other. Conventionally, it took about 10 seconds to bring them closer to each other, but according to the present invention, the time until the upper and lower jaws come into contact with each other is about 2 seconds under the same conditions as above, and the time and labor required for the work. It is a convenient way to reduce

[Brief description of drawings]

FIG. 1 is a perspective view of a spanner wrench.

FIG. 2 is an enlarged sectional view of a spanner wrench-partly omitted.

FIG. 3 is a sectional view taken along the line BB ′ in FIG. 1, illustrating a relationship between the worm gear 1 and a female screw having a groove and a pawl 2.

FIG. 4 is a perspective view of the female screw and the pawl 9 in FIG.

FIG. 5 is an example of a cross-sectional view of a screw mechanism portion using a movable pawl according to claim 2;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Worm gear 6 Movable jaw 2 Female screw and pawl with groove 7 Movable width 3 Spring 8 Groove 4 Bearing shaft 9 Female screw and pawl 5 Spanner wrench body 10 Movable pawl

Claims (2)

[Claims] 1. A fixed jaw integrally formed with the main body, and a movable jaw that is slidably movable at a position facing the fixed jaw so as to separate from or approach the dovetail fixed jaw. A female screw and a pawl that are parallel to the sliding direction of the movable jaw are provided at the part that adjusts the spacing between the upper and lower jaws while being configured to hold the rotating member, and the sliding direction of the movable jaw on the track of the female screw An adjustable spanner wrench with a worm gear on the movable jaw that rotates in parallel and slides the movable jaw away from or closer to the fixed jaw. 2. The adjustable spanner wrench of claim 1, wherein the worm gear is provided with pawls.