JPS6338859Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the creation and improvement of a key chain.

More specifically, the key chain is made of a combination of wire and a rectangular block body having an appropriate thickness.The purpose of the key chain is to easily attach and detach the key to the key chain, and furthermore, to attach and detach the key to the key chain. The holder allows it to be used freely without any hindrance.

The following prior art related to key chains is known.

First, the piano wire is bent into an annular shape several times, adjacent piano wires are pressed against each other, and the key is inserted from the ring end.
The key is configured so that it does not come off from the ring by feeding it deep into the ring, and when it needs to be removed, it must be sent back in the opposite direction to remove it.

Second, a metal rod is formed into a substantially C-shape, and the opening is locked by undulating the locking rod at the opening end with a lifting claw.

Third, a metal rod is formed into a U-shape, and one end of the rod is fitted with a coiled spring wrapped around a locking material, so that the spring force presses the locking material against the opening side, and at the same time, the locking material is pressed against the spring pressure. The opening side is locked and released by lifting it against the force and rotating it around the mounting base.

However, all of the above conventional key holders are made of metal and have a relatively narrow opening, so when a large number of keys are attached, both the keys and the holder become flexible depending on the angle of the key holder. This made it extremely inconvenient to use the key.

Also, in the case of a keychain with a triggering claw, the triggering claw may get caught on something else while being carried, and the lock may come off naturally.
There was a risk of dropping the key.

In addition, in the case of a key chain made of piano wire, it is inconvenient to attach the key because the ring end must be pulled up against the spring pressure of the piano wire to insert the key. .

In order to solve the above-mentioned problems of the prior art, this invention consists of a wire that holds the key, the wire is combined with a rectangular block body having an appropriate thickness, and the end of the wire is fixed to the block body. However, the other end is configured to be detachable from the block body by an appropriate configuration.

Specific embodiments will be described below with reference to the drawings.

Embodiment A block body 1 having an appropriate thickness is molded from metal or synthetic resin material.

A through hole 2 is provided across both end surfaces of the block body 1.
is formed, and one opening of the through hole 2 is formed to have a smaller diameter than the other to form a stepped portion 2' in the middle of the through hole.

Furthermore, a slit 3 is formed extending over the entire length of the through hole 2 and opening into the surface of the block body.

The gap between the slits 3 is made smaller than the diameter of the through hole 2.

At a position perpendicular to the through hole 2 with the slit 3, a through hole 4 is bored from the end face of the block body 1 toward the through hole 2 with the slit.

The opening position is located at an appropriate distance from the step portion 2'.

At a position where the end of the through hole 4 faces the slitted through hole 2, a housing chamber 5 having a larger diameter than the through hole 4 is formed to an appropriate depth.

Separately, a locking piece 6 of a size that can be accommodated in the storage chamber 5 is prepared, and the locking piece 6 is fixed to an end of a highly flexible wire 7, and a piece 9 is attached to the other end of the wire 7. stick.

The diameter of the piece 9 is set so that it can be accommodated in the slitted through hole 2 and does not come out of the slit 3.

When the locking piece 6 is housed in the storage chamber 5, a coil spring 8 is wound around the wire 7 so that the locking piece is always located in the slitted through hole 2. The key chain of the present invention is constructed by interposing it between the bottom surfaces.

Since this invention is constructed as described above, its usage is as follows.

With the wire end released from the block body, insert and hold the key from the other end of the wire, then position the piece 9 at the wire end outside the through hole 2 with the slit 3, and fit the wire into the slit 3. Then, the piece 9 is drawn into the through hole 2 by pulling the wire.

In this case, since the locking piece 6 is in a position blocking the way, the locking piece 6 is placed in the storage chamber 5 by pulling the wire while resisting the spring pressure of the coiled spring 8, and storing the locking piece in the storage chamber. When the locking piece 9 is pulled to the stepped portion 2', the locking piece 6 is pushed out into the slitted through hole by the elastic force of the coiled spring 8 by letting go of the wire of the locking piece that has been pulled until now. Since the piece 9 at the end of the wire is located between the stepped part 2' and the locking piece and is sandwiched between them, the piece does not slip out of the slit, and the wire end is fixed to the block body, and the wire forms a ring part. key.

Next, when removing the key, insert the locking piece 6 into the storage chamber 5.
The piece 9 at the wire end is pulled out of the slitted through hole 2, and the wire end is released and pulled out.

Since this invention is constructed as described above, it exhibits the following effects.

First, since the key holding part is a wire, unlike a conventional metal rod, the flexibility of the wire and the flexibility of the wire do not pose a problem in the use of the key.

Second, when configuring the wire and the block body in an annular configuration, the block body has a through hole with a slit, so the piece is positioned outside the through hole, the wire is inserted into the slit, and the wire is pulled. As a result, the piece is pulled into the through hole, and when it is pulled up to the stepped portion, it is locked by the locking piece, which has the advantage of being simple in structure.

Thirdly, the locking piece that locks the piece at the end of the wire is always connected to the slitted through-hole by a coiled spring wrapped around the wire in a storage chamber provided at the end of the through-hole, which is bored facing the slitted through-hole. Since the locking piece can be accommodated in the storage chamber by pushing it out to the side and pulling the wire against the spring pressure of the coiled spring as necessary, it is possible to easily lock and release the piece at the end of the wire.

Fourth, when a through hole with a slit is formed in the block body, a piece is fixed to the end of the wire, and the piece is locked to the block body, the wire can freely enter the slit, and the piece can freely enter the through hole. Since the piece does not enter or escape from the slit, it has the structural advantage that by pulling the wire, the piece can be reliably and smoothly pulled into the inner step of the through hole and locked by the locking piece.

[Brief explanation of the drawing]

The attached drawings show this invention; Fig. 1 is an overall front view, Fig. 2 is a partially omitted sectional view of the same, Fig. 3 is a plan view of the same, and Fig. 4 is a front view with the wire released. . In the figure, reference numerals 1...Block body, 2...Through hole, 2'...Step, 3...Slit, 4...Through hole, 5...Accommodating chamber, 6...Locking piece, 7... ... wire, 8 ... coil spring, 9 ... piece.

Claims (1)

[Scope of utility model registration request] A through hole 2 is bored across both end faces of a rectangular block body 1 having an appropriate thickness, and one opening of the through hole is formed into a small diameter to form a stepped portion 2' within the through hole. The through hole is provided with a slit 3 that opens on the surface of the block body over the entire length,
The gap between the slits 3 is made smaller than the diameter of the through hole, and a through hole 4 is bored at a position perpendicular to the through hole 2 with the slit 3 and at a required distance from the step 2'. A locking piece housing chamber 5 is formed at the end of the through hole 4 facing the slitted through hole side, and a locking piece 6 is fixed to the wire 7 within the locking piece housing chamber 5. Furthermore, a coil spring 8 is wound around the wire 7, a locking piece is accommodated in the housing chamber 5, and a piece 9 having a diameter larger than the gap between the slits 3 is fixed to the other end of the wire 7.