JP3112399U - Washer with opening and closing piece - Google Patents

Abstract

Provided are a washer and a washer that can be inserted from a side into a bolt or the like and that do not fall off when tightening is loosened.
The washer 1 is cut vertically from the insertion hole 2 to the outer diameter portion with the slit width W1, and is cut out from the insertion hole 2 with the slit widths W2, W2 without penetrating the outer diameter portion in the lateral direction. A washer with an opening and closing piece provided with slit grooves 3 and 3 that can be bent at the bottom along a line cut vertically from the extending end with the slit width W1. Open and close 4 and insert it into the bolt etc. from the side.
[Selection] Figure 1

Description

  The present invention relates to a washer with an opening and closing piece that can be inserted detachably from the side and can be stably mounted without being displaced or dropped.

  When attaching various parts by screwing nuts onto bolts, etc., it is common to tighten a nut with a washer between the part and the nut. In many cases, the nut is inadvertently forgotten and the nut is tightened. For this reason, it is necessary to remove the nut from the bolt and insert the washer, which is very troublesome and laborious.

Conventionally, a technical idea that allows an insertion hole such as a washer to be inserted and mounted from the side by cutting out an insertion hole such as a washer into an outer diameter portion in a U shape. (For example, see the drawings of Patent Document 1 and Patent Document 2)
JP 2002-162096 A Japanese Utility Model Publication No. 6-39220

However, in the above-described well-known technology, when the nut is loosened due to machine vibration or the like, the insertion hole of the washer can only be cut out in a U-shape to the outer diameter portion, so that it is displaced from the bolt, There is a problem that it is easy to drop off and the washer mounting becomes unstable.
Therefore, in view of the above problems, the present invention enables a detachable insertion from the side and a washer with an opening and closing piece that can be stably mounted without being displaced from the bolt or falling off even if the nut is loosened. It is a problem to provide.

In order to achieve the above object, the present invention provides a washer with an opening / closing piece formed by the following means.
That is,
(1) With an opening and closing piece characterized in that it is cut out from the insertion hole of the washer to the outer diameter portion, slit grooves are provided on the left and right along the cut line, and an opening and closing piece that allows the bottom of the slit groove to be bent is provided. Washer.
(2) Cut vertically from the insertion hole of the washer into the outer diameter portion in a slit shape, and extend from the insertion hole without passing through the outer diameter portion in the lateral direction from the insertion hole to the outer diameter portion. A washer with an opening and closing piece according to the preceding item (1), wherein a slit groove is provided that allows the bottom portion to be bent along the vertically cut line.
(3) The opening and closing described in (1) or (2) above, wherein the slit groove that can be bent is provided obliquely along a line cut from the washer insertion hole to the outer diameter portion. One-piece washer.
(4) Any one of the preceding items (1) to (3), wherein an insertion guide portion is provided by recessing a cut end portion cut out from an insertion hole of the washer to an outer diameter portion in an arc shape. A washer with an opening and closing piece according to the item.
(5) The washer with an opening and closing piece according to any one of (1) to (4), wherein the washer insertion hole is a screw hole in which a screw is processed.

  As described in the above means, according to the present invention, the bendable opening / closing pieces provided on the left and right sides are opened and closed by cutting out from the insertion hole of the washer to the outer diameter portion, so that the bolt can be detached from the side. Insertion can be done, and even if you accidentally forget to install the washer, you can do it without removing the nut from the bolt, etc.

  Also, by tightening the nut, the opening and closing piece is closed, and even if the nut is loosened, the inside of the opening and closing piece is held in engagement with the outer diameter part such as a bolt, so it is stable without slipping or falling off Furthermore, by making the insertion hole of the washer a screw hole in which a screw is processed, the function of the nut can be given to the washer, and the pressed state by the washer can be maintained even if the tightened nut is loosened.

  The best mode for carrying out the present invention is to cut out vertically from the insertion hole of the washer to the outer diameter portion in a slit shape, and to cut out from the insertion hole in the left and right direction without penetrating the outer shape portion into a slit shape. A washer with an opening and closing piece provided with a slit groove that can be bent at the bottom along a line vertically cut out from the cut-out extending end, and the opening and closing piece is formed on the slit groove. It is opened and closed by bending at the bottom, and is inserted and attached to a bolt or the like from the side. Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 is a plan view showing an embodiment of the present invention. In the embodiment, the generally used outer shape is illustrated by a round washer (washer), but a square washer (washer) may be used, and the present invention is not limited thereto.

  As shown in FIG. 1, the slit width W2 is vertically cut out from the insertion hole 2 of the washer 1 to the outer diameter portion with a slit width W1, and from the insertion hole 2 without passing through the outer diameter portion in the lateral direction. The slit widths W3 and W3 are slightly cut inward along the line of the slit width W1 cut out vertically from the extended ends of the slit widths W2 and W2 cut out. Slit grooves 3 and 3 are provided.

  As shown in FIG. 2A, the slit grooves 3 and 3 are provided with opening and closing pieces 4 and 4 having thicknesses t and t of about 0.1 to 0.3 mm that can be bent at the bottom. The pieces 4 and 4 are opened by bending in the direction of the arrow as shown in FIG. The size of the opening in the state in which the open / close pieces 4 and 4 are opened is made slightly larger than the diameter of the bolt to be inserted.

  Further, the cut-out end portion cut out from the insertion hole 2 of the washer 1 with the slit width W1 is provided with an insertion guide portion 5 that is recessed in an arc shape. Guided so that it can be inserted smoothly.

In this embodiment, it is cut out by extending with slit widths W2 and W2 without penetrating from the insertion hole 2 to the outer diameter portion in the left and right lateral direction, but left and right of the insertion hole 2 without being cut out in the left and right lateral direction. The purpose can be achieved even if slit grooves (not shown) having slit widths W3 and W3 are provided slightly obliquely outward along the slit width W1 line cut vertically from the end, and the washer is inserted. If the hole 2 is a threaded hole (not shown), the washer 1 can have the function of a nut by closing the opening and closing pieces 4 and 4.
In this case, the thickness of the washer 1 is preferably slightly increased in order to process a screw.

  In the present embodiment, the slit grooves 3 and 3 have a thickness of 0.1 to 0.3 mm so that the opening and closing pieces 4 and 4 can be bent. It is possible to achieve the object even by connecting with an adhesive.

  Furthermore, although it cuts out by the width | variety of slit width W1, W2, W3, shaping | molding by metal mold | dies, such as a press, is also possible. In the case of molding with a press die, it is desirable to use a relatively flexible metal such as copper, brass, aluminum, or the like.

  FIG. 3 shows an example in which the washer 1 with an opening / closing piece formed as described above is inserted into the bolt 6, and the opening / closing pieces 4, 4 are inserted into the bolt 6 from the lateral (arrow) direction. The opening / closing piece 4 is closed in a state where it is placed on the mounting bracket 9 supported via the plain washer 8 by the lower nut 7 screwed to the bolt 6, and the upper nut 7 screwed to the bolt 6 is The mounting bracket 9 is firmly fixed by tightening.

  Then, by inserting and attaching to the bolt 6 from the lateral direction as described above, even if the washer is accidentally forgotten to be installed, it can be performed without trouble, and even if the nut 7 is loosened due to mechanical vibration or the like, the opening and closing piece Since 4 is closed and held in an engaged state with the outer diameter portion of the bolt 6, it does not deviate from or drop out of the bolt 6.

  FIG. 4 shows an example in which the air conditioner 10 is attached to the bolts 6 and 6 suspended from the ceiling by the attachment brackets 9 and 9 attached with the washers 1 and 1 with opening and closing pieces as shown in FIG. It is shown. Actually, the bolts 6, 6, 6, and 6 are suspended from the left and right front and rear four places, and the bottom four places of the air conditioner are supported by the mounting brackets 9, 9, 9, and 9.

  Four bolts 6, 6, 6 and 6 are suspended for mounting one air conditioner, and two bolts 7 and two washers are attached to each bolt. If you accidentally forget to install the washer, such as when installing an air conditioner in an apartment house, etc., the nut 7 screwed into the bolt 6 must be removed, which is troublesome and requires a lot of labor. In addition, the nut 7 is easy to loosen due to vibrations driven by the air conditioner, and the conventional washer with the insertion hole cut out in a U-shape was easy to drop off and unstable, but this was solved by the present invention. By using the screw hole, the state where the screw hole of the washer 1 was engaged with the bolt 6 and pressed by the washer 1 was maintained even if the nut 7 was loosened.

  If the openable / closable piece according to the present invention is used, it can be applied not only to washers (washers) but also to various metal fittings and support members that are inserted into bolts and fastened with nuts etc. There is a possibility that.

It is a top view which shows the Example of the washer with an opening / closing piece which concerns on this invention. It is an AA expanded sectional view of Drawing 1, (a) shows the state where an opening-and-closing piece was closed, and (b) shows the opened state. It is a side view which shows the example in the case of insertion mounting. It is a side view which shows an example of use.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washer 2 Insertion hole 3 Slit groove 4 Opening and closing piece 5 Insertion guide part 6 Bolt 7 Nut 8 Plain washer 9 Mounting bracket 10 Air conditioner W1, W2, W3 Slit width t Thickness

Claims (5)

  A washer with an opening and closing piece, wherein the washer is cut from an insertion hole of the washer to an outer diameter portion, slit grooves are provided on the left and right along the cut line, and an opening and closing piece that can bend the bottom of the slit groove is provided.   Cut vertically from the insertion hole of the washer to the outer diameter portion in a slit shape, and extend from the insertion hole to the outer diameter portion in the left and right lateral direction without cutting through to the outer diameter portion. 2. A washer with an opening and closing piece according to claim 1, wherein a slit groove is provided so that the bottom can be bent along the cut line.   The washer with an opening and closing piece according to claim 1 or 2, wherein the slit groove capable of bending the bottom part is provided obliquely along a line cut out from the insertion hole of the washer to the outer diameter part.   The insertion guide portion is provided by denting a cut-out end portion cut out from the insertion hole of the washer to the outer diameter portion in an arc shape. A washer with an opening and closing piece.   The washer with an opening and closing piece according to any one of claims 1 to 4, wherein the insertion hole of the washer is a screw hole obtained by processing a screw.

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