JPH0228259Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is an improvement of a fixing mechanism that allows objects such as jigs, tools, and measuring instruments to be removably attached and fixed to other objects. It is related to.

(Prior Art) Jigs, tools, measuring instruments, etc. are placed on a desk and used in a movable manner, or are sometimes fixed on a desk or fixed on a predetermined mounting plate. The present invention relates to the latter fixing mechanism which is used by being inserted and fixed into the mounting hole of the mounting plate.

For example, as a means for fixing a measuring instrument on a flat plate, it is common to fix it to the plate surface with screws.

(Problems to be Solved by the Invention) However, according to this method, not only is it troublesome to tighten the screws, but when the plate surface is large, manual work is required for both the front and back surfaces, making the work cumbersome.

The present invention was devised in view of the problems of the prior art, and its purpose is to provide a fixing mechanism that allows objects such as measuring instruments to be easily attached to and removed from objects such as flat plates. do.

(Means for Solving the Problems) The fixing mechanism of the present invention to achieve the above object consists of a fixing device body with a jig, tool, measuring instrument, etc. attached to the upper part and a hollow cylindrical part formed inside the lower part. ,
a shaft rotatably provided within the hollow cylinder; a coil spring mounted within the hollow cylinder; It comprises a holder that fits together, and a pawl that is pivotally connected to the holder and opens and closes by rotating the shaft portion, and is characterized by a structure that is inserted into a mounting hole of a mounting plate and fixed. be.

(Function) The main body of the fixture, which is equipped with the fixing mechanism configured as described above, narrows the claw width by rotating the shaft, and in that state is inserted into the mounting hole of the mounting plate, and is temporarily fixed by spring force. . Then, widen the nail width and secure it firmly.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the accompanying drawings. Although the drawings only show the main parts of the fixing mechanism, objects such as measuring instruments and tools are attached to the upper part of the main body.

In the figure, reference numeral 1 denotes a mounting plate material to which this fixing mechanism is mounted, in which a mounting hole 1a is formed. 2 is the fixing device body, and inside the lower part there is a stepped concave hollow cylinder part 2.
a and 2b are formed. Reference numerals 3 and 4 denote guide mechanisms that are provided so as to be movable from side to side between the outside of the claw and the fixture body. That is, numeral 3 is a long groove provided in the fixture main body 2, through which the pin 4 protrudes and slides. Reference numerals 5 and 5 denote two claws which are pivotally fixed to a holder 7 having a female thread 7a with a pin 6. The claw 5 is formed with a tapered surface 5a that can be easily inserted into the mounting hole 1a. 10 is the fixture body 2
A handle 9 is attached to the outer end of the shaft inserted into the holder 7, and a male thread 11 is formed at the intermediate portion to be screwed into the female thread 7a of the holder 7. Further, a coil spring 8 is wound around the shaft portion 10 to press the holder 7 toward the handle 9 side of the shaft portion 10.

Next, an explanation will be given of the operation for fixing the fixing device main body equipped with this fixing mechanism to the mounting plate material. First, the shaft portion 10 is inserted into the mounting hole 1a of the mounting plate 1 from the handle 9 side. At that time, the inner diameter of the mounting hole 1a should be 2
If the width formed by the two pawls 5, 5 is wide, turn the handle 9 in the direction of arrow a to make the width narrower.

At the position shown in the figure, the lower end of the fixture main body 2 comes into contact with the edge surface of the mounting hole 1a of the mounting plate 1.
Therefore, the handle 9 is rotated in the direction of arrow b to move the two claws 5, 5 in the opening direction, but at this time, the holder 7 generates a compressive force between it and the fixture body 2 due to the coil spring 8. There is. When this force is transmitted to the pin 6, the claws 5, 5 slide and agitate through the pin 4, creating a force in the opening direction, and the fixing device main body 2
Temporarily fix.

Next, when the handle 9 is rotated in the direction of arrow b,
Due to the threaded engagement of the holder 7 and the threaded portion 11 of the shaft portion 10, the holder 7 is further compressed with the fixture main body 2, and the force in the opening direction of the claws 5, 5 is increased, resulting in permanent fixation.

To release this, by rotating the handle 9 in the opposite direction, the opening force of the claws 5, 5 becomes only the spring force of the coil spring 8, so the fixing device main body 2 can be pulled out against the spring force. Following the taper of the claws 5, 5, it can be removed from the mounting hole 1a of the mounting plate 1.

According to the above embodiment, the following effects are achieved.

The tapered surface 5a of the claw 5 allows easy insertion into the mounting hole 1a, and the outer side of the claw 5 is movable from side to side with the fixture body 2, making the best use of spring force. A temporary fixation mechanism can be implemented.

Since the outer side of the claw 5 is movable to the left and right between the fixing device main body 2 and the inner side of the claw 5 is pivotally attached to the holder 7, the rotational force of the handle 9 can be applied as a boosting mechanism, making it strong and strong. It is possible to perform permanent fixing.

By rotating the handle 9, the fixture can be easily attached to and detached from the fixture body.

The fixing mechanism can be widely applied to measuring instruments, tools, etc. For example, if the mounting plate has a certain thickness, the size and taper shape of the claws may be changed accordingly.

(Effects of the invention) As is clear from the above-mentioned embodiments, according to the invention, the fixing device body is inserted into the mounting hole of the plate material and fixed by using the claw mechanism that opens and closes and the force of the coil spring. It is very easy to operate, and the method of installation and fixation is two-step fixation: temporary fixation using a coil spring, and permanent fixation by rotating the shaft. It is strong and reliable.

[Brief explanation of the drawing]

The attached drawing is a longitudinal cross-sectional view of a main part of a fixing mechanism section showing an embodiment of the present invention. 1... Mounting member, 1a... Mounting hole, 2... Fixture body, 3... Long groove, 4, 6... Pin, 5...
Claw, 7...Holder, 8...Coil spring, 9
... Handle, 10 ... Shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A fixture body with a jig, tool, measuring instrument, etc. attached to the upper part and a hollow cylinder inside the lower part, and a shaft rotatably provided within the hollow cylinder. a coil spring installed in the hollow cylindrical part; a holder provided in the hollow cylindrical part and urged by the coil spring and threadedly engaged with the shaft part; and a holder pivotally connected to the holder. A fixing mechanism comprising a claw that opens and closes by rotating the shaft, and is configured to be inserted into a mounting hole of a mounting member and fixed by the claw. (2) The fixing mechanism according to claim 1 of the utility model registration, characterized in that it is configured to include a guide mechanism that is movable from side to side between the outside of the claw and the fixing device body. .