JPH066725U - Fixing screw - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a fixing screw, which is provided with an additional male screw on the tip side of the screw, thereby eliminating the need for a washer or E-ring for retaining, and untightening the screw. You can hold the screw only with the screw, and if you want to remove the screw,
An object of the present invention is to provide a fixing screw that can be easily operated by further turning the screw. [Structure] In a fixing screw for fixing an object by screwing a screw into a nut, the fixing screw is formed at a distance from the front end side of a male screw provided on the base side of the fixing screw. It is configured to have the attached male screw.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixing screw. For example, a washer for preventing the screw from coming off and a component such as an E ring are used on the tip side of the male screw. The present invention relates to a fixing screw that is engaged to hold a screw.

[0002]

[Prior art]

 Conventionally, as a fixing screw of this type (hereinafter, simply referred to as a screw), a screw having a structure in which a screw 2 is formed on the base 1 side and a locking groove 3 is formed on the tip side as shown in FIG. Are known. In order to fix an object 5 such as a device part to the chassis 6 using the screw 4 having this configuration, the screw 8 of the screw 4 is attached to the screw 8 of the nut 7 fixed to the chassis 6 as shown in FIG. The screw 4 is prevented from coming off in the direction of the arrow by screwing the screw 2 and engaging a lock washer or an E ring 9 with the locking groove 3.

[0003]

[Problems to be solved by the device]

 However, such a conventional fixing screw requires a separate washer or E-ring in addition to the screw 4 in order to prevent the screw 4 from falling off the chassis 6, and also requires a work for fixing the washer or E-ring. Not only that, when the screw 4 is removed from the nut 7, the washer or the E-ring 9 must be removed, which makes the extraction operation of the screw 4 troublesome. The present invention has been made in view of such conventional problems, and by providing an additional male screw on the tip side of the screw at a distance from the male screw, tightening the screw without using a washer or an E-ring. It is an object of the present invention to provide a fixing screw that can hold a screw only by untwisting.

[0004]

Means for Solving the Problems The present invention relates to a fixing screw for fixing an object by screwing a screw into a nut, wherein the fixing screw is a male screw provided on a base side of the fixing screw, It is characterized in that it has an additional male screw formed at a distance from the male screw on the tip side of the male screw.

[0005]

[Action]

 Since the present invention has the above-mentioned configuration, when the tightening 4 of the screw is released, the male screw of the screw is simply removed from the nut, and the screw is released from the nut and the additional male screw on the tip side of the screw is released. Engage the nut.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing an embodiment of a fixing screw according to the present invention. First, the configuration will be described. In FIG. 1, 4 is a fixing screw (hereinafter, simply referred to as a screw), and the screw 4 is formed on the base side of the screw 4 having the head 1 on the tip side of the male screw 2 and the screw 4. An additional male screw 10 is formed through a shaft portion 11 having a distance L from the screw 2. It is preferable that the pitches and diameters of the male screws 2 and 10 are exactly the same, and that the distance L between the male screws 2 and 10 is slightly larger than the axial thickness of the nut 7 fixed to the base plate 6.

The screw 4 is for fixing the parallel movement of the component 5 as an object to the chassis 6 made of sheet metal in the direction of the arrow A, and is fixed to the female screw 8 of the nut 7 previously fixed to the chassis 6. It is provided so that it can be screwed. The screw 4 advances to the component 5 side by screwing the male screw 2 into the female screw 8 of the nut 7, and finally the tip 4a of the screw 4 is inserted into the fixing hole 5a of the component 5. Has been done.

Next, the operation will be described. In order to fix the component 5 with the screw 4 formed in this way, first, the auxiliary screw 10 is screwed onto the female screw 8 of the nut 7 to be rotated forward, and then the male screw 2 is fixed to the nut 7. The screw 4 is further screwed forward to further advance to the component 5 side, and finally the tip portion 4a of the screw 4 is inserted into the fixing hole 5a of the component 5. This locks the component 5 in translation with respect to the chassis 6. On the other hand, when the screw 4 is loosened, as shown in FIG. 2, the male screw 2 is disengaged from the screw engagement of the nut 7 and the female screw 8. The nut 7 is fitted at the shaft portion 11 between the above-mentioned males 2 and 10, and the male screw 10 for retaining is locked to the rear surface of the nut 7 and does not move in the direction of arrow B any more. That is, the bed 10 serves as a retainer. When it is desired to completely remove the screw from the nut 7, it can be easily removed by screwing the male screw 10 onto the nut 7.

[0009]

[Effect of device]

 As described above, according to the present invention, by providing the additional male screw at the tip side of the male screw of the screw, the additional male screw serves to prevent the screw from being pulled out, and thus the conventional male screw is As described above, the washer and the E-ring are not required, the number of parts can be reduced, and the work of fixing the washer and the E-ring can be eliminated. In addition, when removing the screw completely, there is no need to remove the washer and E-ring, simply turning the screw makes the removal easy.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a fixing screw of the present invention.

FIG. 2 is a sectional view showing a usage state of a screw according to an embodiment of the present invention.

FIG. 3 is a side view of a conventional general fixing screw.

FIG. 4 is a cross-sectional view showing a usage state of the screw shown in FIG.

[Explanation of symbols]

 2 Male screw 4 Screw (fixing screw) 5 Parts (object) 7 Nut 10 Additional male screw

Claims (1)

[Scope of utility model registration request] 1. A fixing screw for fixing an object by screwing a screw onto a nut, wherein the fixing screw is a male screw provided on the base side of the fixing screw and a male screw on the tip side of the male screw. And an additional male screw formed at a distance, and a fixing screw.