JPH0684015U - nut - Google Patents

Abstract

(57) [Summary] [Purpose] The workability is good, and it is possible to maintain close contact with the device with respect to the diagonally protruding bolts. An outer shell 3 in which opposed taper portions 6 are formed, and a holding portion 9 is provided at one end of the taper portion 6 in the drawing direction,
A pair of screw tops 4 slidably mounted on the taper portion 6 and provided with locking portions 10 that can be locked to bolts, and these screw tops 4 are pressed in the drawing direction of the taper portion 6. A nut body 1 including a spring mechanism 5 mounted on the outer shell 3 and a washer 2 having an outer periphery provided with a flange portion 16 having an opening peripheral edge portion 2a rotatably held by a holding portion 9 and protruding toward the opposite side of the nut body 1. It is equipped with and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a nut.

[0002]

[Prior art]

 In the conventional nut, as shown in FIG. 11, the nut body 50 and the washer 51 are separate, and both 50 and 51 can be moved separately, so that the vertical bolt 52 as shown in FIG. On the other hand, the adhesiveness to the device 53 was good, and the device 53 could be firmly fixed.

[0003]

[Problems to be solved by the device]

 However, since the nut body 50 and the washer 51 were separate during the construction, it took time and effort to insert them into the bolt 52, and the operation of the nut body 50 was troublesome. Further, as shown in FIG. 13, there is a drawback that the washer 51 and the device 53 are not sufficiently adhered to the bolt 52 that is obliquely projected.

Therefore, an object of the present invention is to provide a nut which has good workability and can maintain close contact with an instrument with respect to a bolt protruding obliquely.

[0005]

[Means for Solving the Problems]

 In the nut according to claim 1, an outer shell having a tapered portion formed inside and a holding portion provided at one end of the tapered portion in the drawing direction, and a nut slidably mounted on the tapered portion and locked to a bolt. A nut body consisting of a pair of screw tops provided with lockable parts and a spring mechanism attached to the outer shell so as to press these screw tops in the drawing direction of the taper part, and an opening peripheral edge part. A washer having a collar portion rotatably held by the holding portion and projecting to the side opposite to the nut body is provided on the outer circumference.

A nut according to a second aspect is the nut according to the first aspect, wherein the washer is made of an elastic material. According to a third aspect of the present invention, in the first or second aspect of the nut, the collar portion is provided with a protrusion. According to a fourth aspect of the present invention, in the first aspect of the present invention, the washer has an opening formed in a duller hole, and a peripheral portion of the opening is detachably attached to the holding portion.

[0007]

[Action]

 According to the structure of claim 1, since the nut body and the washer are rotatably integrated with each other, the nut body and the washer can be taken out at the same time, and it does not take time and effort when inserting into the bolt. Also, this nut is attached as follows. That is, when the tape is inserted into the bolt from the drawing direction, the locking portion of the screw top hits the screw of the bolt and is pushed to the outlet side against the spring force of the spring mechanism. Along with this, the screw top moves along the tapered portion, so that the space between the screw tops is widened and the bolt can be slid. After that, the nut is moved to a predetermined position, and the outer shell is rotated and completely tightened. For this reason, the nut can be quickly installed, which saves construction work. Further, since the collar portion projecting to the side opposite to the nut body is provided on the outer periphery of the washer, it is possible to maintain the close contact with the instrument (attached member) even with the bolt protruding obliquely.

According to the configurations of claims 2 and 3, in addition to the effect of claim 1, the washer is made of an elastic material, or the protrusion is provided on the flange portion, so that the adhesion with the device is improved. It can be improved further. According to the structure of claim 4, in addition to the effect of claim 1, a washer having another shape can be attached to the nut body.

[0009]

【Example】

 A nut of the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. This nut comprises a nut body 1 and a washer 2. The nut body 1 includes an outer shell 3, a pair of screw tops 4 and 4, and a spring mechanism 5. The outer shell 3 is formed in the inside thereof with tapered portions 6 and 6 facing each other in the form of a cylinder. The parts outside these taper parts 6, 6 are knobs 7, 7 during operation. A hole 8 is formed at one end of the outer shell 3 on the drawing direction side (inlet side) of the taper portion 6 so that a bolt can be inserted therein, and the other end on the outlet side is open at the front. At the peripheral edge of the hole 8, there is provided a holding portion 9 in which a cylindrical crimping margin is folded back. The screw top 4 is provided with an engaging portion 10 which is slidable on the taper portion 6 and is engageable with a bolt mounted inside a knob 7. In addition, the interval between the screw threads 4 and 4 facing each other is set to be smaller than the diameter of the bolt to be used. The spring mechanism 5 has a bolt insertion hole 17 and is fixed to the end portion on the outlet side of the outer shell 3, and a support piece 1 2 having a bolt insertion hole 11 and supporting a pair of screw tops 4, 4. , 12 and a spring 15 which is interposed between the bottom lid 14 and the receiving plate 13 and which is elastically urged to press the receiving plate 13 toward the screw pin 4 side.

The washer 2 is made of an elastic material or the like, and its opening peripheral edge portion 2 a is rotatably held by the holding portion 9. Further, a collar portion 16 protruding toward the side opposite to the nut body 1 is formed on the outer circumference. It should be noted that in FIG. 1, members mounted inside the nut body 1 are omitted. Next, a procedure for constructing this nut will be described. When the nut is inserted through the hole 8 into the bolt, the locking portion 10 of the screw thread 4 hits the screw of the bolt and is pushed toward the outlet side against the spring force of the spring mechanism 5. Along with this, the screw top 4 moves along the taper portion 6, so that the interval between the screw tops 4 is widened and the bolt can be slid. After that, the nut is moved to a predetermined position, and the knob 7 is turned to completely tighten it. At this time, the flange portion 16 of the washer 2 can be elastically deformed and the close contact with the device can be maintained even if the bolt is obliquely projected to the device (attached member). When the nut is pulled in the opposite direction, the screw heads 4 and 4 move along the taper portion 6, so that the interval between them becomes narrower and the nuts are stuck and cannot move.

In this embodiment, since the nut body 1 and the washer 2 are rotatably integrated, the nut body 1 and the washer 2 can be taken out at the same time, and it does not take time and effort when inserting into the bolt. Also, this nut can be easily installed without tools as described above, and since the washer 2 is made of an elastic material and the collar portion 16 is formed, the adhesion of the nut to the device even when it is diagonally protruding. Good and can be firmly fixed. Further, since the collar portion 16 is provided, even if the holding portion 9 projects from the opening peripheral edge portion 2a, the adhesion is not affected.

FIG. 3 shows a nut washer 18 of the second embodiment, in which the upper edge portion of the collar portion 19 is bent outward to form a flat portion 19a. As shown in FIG. 4, the upper edge portion of the collar portion 19 may be bent inward. In this embodiment, the contact area with the device is increased and the adhesion is further improved. Other structural effects are similar to those of the first embodiment. FIG. 5 shows a nut washer 20 of the third embodiment, in which a large number of protrusions 22 ... Are formed on the upper edge portion of the collar portion 21. As shown in FIG. 6, the number of protrusions 22 may be small. In this embodiment, the protrusions 22 bite into the device to further improve the adhesion. Other structural effects are similar to those of the first embodiment.

FIG. 7 shows a nut washer 23 of the fourth embodiment, in which a part of the collar portion 24 is cut. As shown in FIG. 8, the collar portion 24 may be partially omitted. Other structural effects are similar to those of the first embodiment. FIG. 9 shows a nut of the fifth embodiment, in which the washer 25 has an opening formed in a duller hole, and the opening peripheral edge portion 25a is detachably attached to the holding portion 9. In this embodiment, since the washer 25 is attachable to and detachable from the nut body 1, it is possible to easily attach a washer having a different shape to the nut body 1. Other structural effects are similar to those of the first embodiment.

It should be noted that the above-mentioned embodiments may be combined.

[0015]

[Effect of device]

 According to the nut of this invention, since the nut body and the washer are rotatably integrated, the nut body and the washer can be taken out at the same time, and it does not take time and effort when inserting into the bolt. Also, this nut is attached as follows. That is, when the bolt is inserted from the drawing direction of the taper part, the locking part of the screw top hits the screw of the bolt and is pushed toward the outlet side against the spring force of the spring mechanism, and the screw top follows the taper part. Since it moves by moving it, the interval is widened and the bolt can be slid. After this, move the nut into place and turn the shell to tighten it completely. In this way, the nuts can be installed quickly without the need for tools, and the construction work can be saved. Further, since the flange portion projecting to the side opposite to the nut body is provided on the outer periphery of the washer, it is possible to maintain the close contact with the device (attached member) even with the bolt protruding obliquely.

According to the configurations of claims 2 and 3, in addition to the effect of claim 1, the washer is made of an elastic material, or the protrusion is provided on the collar portion, so that the adhesion with the device is improved. It can be improved further. According to the configuration of claim 4, in addition to the effect of claim 1, a washer having another shape can be attached to the nut body.

[Brief description of drawings]

FIG. 1 is a partially omitted sectional front view of a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a nut body.

FIG. 3 is a sectional front view of a washer of the second embodiment.

FIG. 4 is a sectional front view of a modified example of the washer of the second embodiment.

FIG. 5 is a sectional front view of a washer according to a third embodiment.

FIG. 6 is a sectional front view of a modified example of the washer of the third embodiment.

FIG. 7 is a sectional front view of a washer of the fourth embodiment.

FIG. 8 is a sectional front view of a modified example of the washer of the fourth embodiment.

FIG. 9 is a partially cutaway perspective view of a fifth embodiment.

FIG. 10 is a plan view of the washer.

FIG. 11 is a perspective view of a conventional nut.

FIG. 12 is an explanatory view of the attached state.

FIG. 13 is an explanatory diagram showing a problem of the conventional example.

[Explanation of symbols]

 1 Nut Main Body 2 Washer 2a Opening Edge Part 3 Outer Shell 4 Screw Top 5 Spring Mechanism 6 Tapered Part 9 Holding Part 16 Collar Part

Claims (4)

[Scope of utility model registration request] 1. An outer shell having opposed taper portions formed therein and a holding portion provided at one end of the taper portion in the drawing direction, and a slidably mounted on the taper portion and engageable with a bolt. A nut body composed of a pair of screw tops provided with locking portions and a spring mechanism attached to the outer shell so as to press these screw tops in the drawing direction of the taper portion, and the opening peripheral portion holds the holding portion. And a washer having a flange provided on the outer periphery, which is rotatably held by a section and projects toward the opposite side from the nut body. 2. The nut according to claim 1, wherein the washer is made of an elastic material. 3. The nut according to claim 1, wherein the flange is provided with a protrusion. 4. The nut according to claim 1, wherein an opening of the washer is formed as a blunt hole, and a peripheral portion of the opening is detachably attached to the holding portion.