JP2002054329A - Key-attached resin cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a smooth inserting operation for a coil spring type holder ring for a key-attached resin cover to a knob portion. SOLUTION: In a key which has a coil spring type holder ring 6 to be inserted into an inserting hole 5 provided in the key 1 having a resin cover, a slit 10 reaching the inserting hole 5 from the lower edge 8' and an fitting groove 11 for the knob portion 4 of the key are fitted; and while the key is inserted in advance to the slit 10 and the holder ring 6 is being fitted, and the knob portion 4 of the key 1 is fitted to the mortise groove 11 and the resin cover 8 is fitted to the key having the resin cover.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key provided with a resin cover in which a knob is covered with resin, characterized in that a key provided with a resin cover can be easily inserted into a coil spring type holder ring. It is.

[0002]

2. Description of the Related Art An ordinary flat key without a resin cover can be relatively easily inserted into a holder ring together with a spare key. However, with a key with a resin cover over the knob, the resin superimposed on the front and back increases the thickness around the ring insertion hole, making it extremely difficult to insert the coil spring type holder ring. Requires a great deal of labor. In addition, this type of key has a problem in that the resin cover is attached to the knob provided with the insertion hole of the holder ring by insert molding, which increases the cost.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to develop a key with a resin cover that allows easy insertion of a holder ring.

[0004]

As a means for solving the above-mentioned problems, the present invention relates to a key in which a key with a resin cover is inserted into a coil spring type holder ring, wherein the resin cover is formed separately from the key. From the lower edge toward the inside of the cover, a fitting groove for fitting the knob of the key, and penetrating the cover from front to back in a direction perpendicular to the fitting groove,
With a slit that reaches the insertion hole of the ring provided in the knob, and with the coil spring of the holder ring with the key inserted into the slit, the key's knob is fitted into the insertion groove, and a resin cover is attached. A key provided with a resin cover, wherein the key is inserted through a holder ring.

In the key of the present invention constructed as described above, the holder ring is inserted into the insertion hole of the knob portion in a flat state as in the case of the key without the cover, and is inserted through the slit and the fitting groove provided in the resin cover. Since the cover is fitted afterwards, the insertion of the holder ring becomes extremely easy and the insert molding of the cover as compared with the conventional one that inserts the coil spring type holder ring after the resin cover is attached. Can be eliminated, and the cost of a key with a resin cover inserted through the holder ring can be reduced.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway exploded elevational view showing an embodiment of the present invention, and FIG. 2 is an elevational view showing a state in which a key with a resin cover is inserted through a holder ring together with a spare key.

As shown in FIG. 1, a key 1 provided with a predetermined unevenness 3 in an insertion portion 2 and an insertion hole 5 of a horizontally long hole in a knob portion 4 is previously provided with a coil as in the case of a normal key. Spring 7
The holder ring 6 formed in the step is inserted. Resin cover 8 molded separately from key 1 and placed over key 1 afterwards
Has a circular hole 9 corresponding to the position of the insertion hole 5 of the key 1.
Then, a slit 10 having a width slightly larger than the diameter of the coil spring 7 is formed before reaching the circular hole 9 from the lower edge (the lower side in the figure) 8 ′. In the thickness of the resin cover 8, a flat fitting groove 11 having a width and a depth corresponding to the outer shape of the knob 4 of the key 1 is formed from the lower edge 8 '.

When the key 1 is covered with the resin cover 8, the coil spring 7 is held perpendicular to the insertion hole 5 of the key 1 as shown in FIG. The coil spring 7 is moved to the inside of the circular hole 9 while being guided by the slit 10 penetrating the front and back of the cover 8 while fitting the fitting groove 11 along the upper edge, and the knob portion is moved until it reaches the depth of the fitting groove 11. 4 is fitted with a resin cover 8. The fitted state of the resin cover 8 is held by the friction of the fitted surface and the elastic locking generated at the bulging portions at the lower portions on both sides.

In the illustrated embodiment, the slit 10
Is provided with a circular hole 9 at the upper end thereof, but the hole 9 may have the same shape as the insertion hole 5 on the key 1 side in some cases. Further, the shapes of the key 1 and the resin cover 8 are not limited to the embodiments, but needless to say, may be appropriately changed in accordance with the gist of the present invention.

[0010]

As described above, according to the present invention, in which the key is inserted into the coil spring type holder ring and the resin cover is attached later, the resin cover can be fitted with almost one touch. Also, the insertion of the holder ring can be made as easily as in the case of a normal key. Therefore,
The technical difficulties of inserting a holder ring into a conventional key with a resin cover are eliminated, and labor is reduced, the time required for mounting the ring is shortened, and the cost of a key with a resin cover can be greatly reduced. Useful.

[Brief description of the drawings]

FIG. 1 is an exploded elevation view of a partially cutaway embodiment.

FIG. 2 is an elevational view of a state in which a key with a resin cover is inserted into a holder ring together with a spare key.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Key 2 Insertion part 3 Unevenness 4 Knob part 5 Insertion hole 6 Ring 7 Coil spring 8 Resin cover 9 Circular hole 10 Slit 11 Fitting groove

Claims (2)

[Claims] 1. A key in which a key with a resin cover is inserted through a coil spring type holder ring, wherein a knob portion of the key is fitted from the lower edge of the resin cover molded separately from the key into the cover. A fitting groove to be fitted, and a slit that penetrates the cover from front to back in a direction perpendicular to the fitting groove to reach the insertion hole of the ring provided in the knob, and a coil of a holder ring in which a key is inserted in the slit. A key with a resin cover, characterized in that the knob of the key is fitted into the fitting groove while the spring is fitted, so that the key with the resin cover is inserted into the holder ring. 2. A circular hole communicating with an end of said insertion hole is provided at an upper end of said slit.
Key with resin cover as described.