JPH0249973B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a tip part of a locking piece attachment device for quickly attaching so-called tags such as price tags to various articles including cloth products and leather products. Concerning a hollow needle to be attached to.

[Conventional technology]

The known locking piece attachment device is usually constructed in the shape of a pistol, and has a hollow needle inserted into the front end of its nose, which is passed through the article at the same time as the hole in the tag, and is inserted into the handle. A tag is attached to an article via a locking piece by pulling a trigger portion elastically projected forward.

The locking piece consists of a head, a filament part extending laterally from the center of the head, and a horizontal bar part connected to the end of the filament part in parallel with the head, and has an H-shape as a whole. Each part is arranged in a comb-like manner on one connecting rod, and is made of a stretchable plastic material such as nylon or polypropylene. When attaching tags to an article, the horizontal bar is pushed into a hollow needle penetrating to the back of the article by the piston of the attaching device, and the tag through which the hollow needle is pierced is supported by the filament section. It is.

Specific examples of locking piece attachment devices are known, for example, in U.S. Pat. It is known from Publication No. -122100, etc.

The pistol-shaped locking piece attachment device has a vertical groove that guides the filament part of the locking piece group, and an L-shaped horizontal groove that continues from this vertical groove and extends to the front end of the nose. A mounting hole is provided in parallel, and a hollow needle is inserted and fixed into this mounting hole. This hollow needle is supported in the mounting hole in a somewhat unstable state because the needle has a piercing portion with a small diameter as much as possible in order to avoid damage caused by opening a large insertion hole in the article.

The hollow needle consists of a piercing part that is inserted into the article and a mounting part that is inserted into the mounting hole provided in the nose of the mounting device. A groove is provided which reaches the hole and has a C-shaped cross section. A semicircular notch is provided at a position close to the piercing portion of the mounting portion and perpendicular to the hole for guiding the horizontal bar portion.

When fixing this hollow needle to the nose, which is the front part of the attachment device, insert the attachment part into the attachment hole provided in the nose, and then insert the stopper provided in the nose perpendicularly to the hollow needle. The stopper is fixed by being rotated and fitted into the notch.

[Problem to be solved by the invention]

As mentioned above, the hollow needle has a mounting structure in which the mounting part is inserted into the mounting hole provided in the nose and the stopper prevents it from coming off, so if a force is applied to the hollow needle in the lateral direction, it can be easily removed. They are prone to damage such as breaking or bending, and the hollow needles often need to be replaced.

Further, in the nose of the attachment device, a groove that guides the filament portion of the L-shaped locking piece and a groove that guides the horizontal bar portion to the hollow needle communicate with each other. The mounting hole of the hollow needle is split into a C-shape to form a passage for guiding the filament. When attaching a tag to an article, a hollow needle is inserted into the article and then a locking piece is driven in by operating the trigger.
During this piercing operation, force is often applied to the hollow needle in the lateral direction.

At this time, the mounting hole that holds the mounting part of the hollow needle will be pried open, but since the wall of this mounting hole is partially cut out in a C shape and a crack, that is, a horizontal groove, is opened. When the hollow needle receives a lateral force, a force will be applied that causes the lateral groove to open. As a result, the nose may suffer cracks or other damage.

Furthermore, when inserting a hollow needle into an article, if the article is made of a fairly hard material, such as jeans, canvas, or hard leather products, it is necessary to push the hollow needle into the mounting hole. A large force will be applied. On the other hand, the attachment hole does not have a bottom surface because the horizontal bar portion of the locking piece is inserted from the rear end of the attachment portion of the hollow needle. Since the only part that bears the force of pushing the hollow needle into the mounting hole is the stopper provided on the nose, the mounting hole will expand and deform.As a result, the main body of the device may be damaged or the hollow needle may become loose. In some cases, the horizontal bar portion of the locking piece could not be accurately guided.

Therefore, an object of the present invention is to solve the problem of the hollow needle attached to the tip of the locking piece attachment device, that is, the hollow needle of the device, which is generated when the hollow needle attached to the nose is subjected to forces in the lateral and axial directions during use. It is an object of the present invention to provide an improved hollow needle that can completely prevent or minimize damage to the attachment part.

[Means to solve the problem]

To achieve the above object, the hollow needle for a locking piece attachment device according to the present invention includes a mounting portion that is inserted into a mounting hole provided at the front end of the locking piece attachment device, and a hollow needle that extends from the mounting portion and is capable of attaching to an article. consisting of an elongated main body having a piercing portion with a sharp tip that is pierced by the
In the hollow needle, the main body part is penetrated in the longitudinal direction and has a hole for guiding the horizontal bar part of the locking piece, and a groove for guiding the filament part connecting the hole and the outer surface. A groove is provided near the boundary between the attachment part and the piercing part, perpendicular to the axis of the piercing part, and a disc member formed by a C-shaped ring is fitted into this groove, This is a hollow needle for a fixed locking piece attachment device.

[Effect]

It is fixed by inserting the hollow needle attachment part into the attachment hole provided at the front end of the nose of the locking piece attachment device.
In this state, the disc member consisting of a C-shaped ring is seated in a state where it is spread around the mounting hole and functions as a pedestal or a stopper.

Therefore, even if an axial force is applied to push the hollow needle into the mounting hole, the force is dispersed to the front end surface of the nose by the disc member, so that the hollow needle does not fit into the mounting hole. It is prevented from being pushed in. In addition, if a force that would break the hollow needle is applied from the lateral direction of the hollow needle, the C-shaped ring will share the force while distributing it, so that a portion of the hollow needle will open due to the lateral groove and the C-shaped ring will split the force. It is possible to widen the already shaped mounting hole and furthermore prevent the occurrence of cracks around the mounting hole.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings. First, Fig. 1 is a perspective view of the hollow needle of the present invention, Fig. 2 is a side view of the locking piece attaching device to which the hollow needle is attached, and Fig. 3 is a view taken along line 3-3 in Fig. 2. 4 is an enlarged sectional view taken along line 4-4 in FIG. 3.

The hollow needle 60 has a mounting part 11a and a piercing part 11b.
It is composed of an elongated main body part 11 consisting of. The attachment portion 11a of the hollow needle 60 is attached to the front end 20 of the nose portion of the locking piece attachment device 22 (or pistol).
It is designed to be inserted and fixed into a mounting hole opened in the.

The piercing portion 11b has a sharp pointed end 1 so that the locking piece can be easily pierced into the article to which the locking piece is attached.
2 and, as shown in FIGS. 1 and 3, is cut diagonally so that the horizontal bar portion of the locking piece can be pushed out.

The hollow needle 60 also has a hole 13 for guiding the horizontal bar portion of the locking piece in its longitudinal direction, and a corresponding groove 14 for guiding the filament portion extending in the longitudinal direction.
(slit) is formed over the entire length.

As shown in FIGS. 1 and 4, the attachment portion 11a includes a notch 17 adjacent to a disc member 64 made of a C-shaped ring, and a locking portion further adjacent to the notch 17 extending to the end of the attachment portion 11a. It has a groove 18 into which the front half of the horizontal bar portion of the piece is inserted in the direction perpendicular to the axis of the hollow needle 60. Further, this groove 18 is connected to the hole 13 and is arranged at an angle of 90° with the groove 14 that guides the filament portion.

The mounting portion 11a is fitted into a mounting hole 32 opened at the front end of the nose 20 of the mounting device 22, and the notch 17 allows the hollow needle 60 to be attached to the device 2 as described later.
It is fixed at 2. As shown in FIG. 2, the side surface of the locking piece attachment device 22 is provided with vertical and horizontal grooves in an inverted L shape that communicate with the grooves 14 provided in the hollow needle 60.

Although not shown, a vertical groove for a horizontal bar portion is provided behind the vertical groove up to the horizontal groove,
Further, behind the vertical groove for the horizontal bar portion, a vertical groove for the connecting rod, which gathers the locking pieces into one piece, is passed through in the vertical direction over the entire width of the nose.

The locking piece group is inserted through the openings above the connecting rod vertical groove, horizontal bar vertical groove, and filament vertical groove that are opened at the top of the mounting device 22, and the locking piece located at the lowest position A groove 18 in which the front half of one horizontal bar is open on the upper surface of the attachment part 11a of the hollow needle 60
(FIG. 1) and will be loaded into the rear end of the hole 13.

Near the attachment part 11a of the hollow needle 60, the same needle 6
A C-shaped ring 64 is fitted into the groove in the form of a disk member 62 fixed substantially perpendicular to the groove. As shown in FIG. 3, when the hollow needle 60 is attached to the front end of the nose 20 of the locking piece attachment device 22, the hollow needle 60 consists of a C-shaped ring fitted onto the hollow needle 60 as shown in FIG. A disc member 62 contacts the front end surface of the nose 20.

The attachment part 11a of the hollow needle 60 is formed to have a larger diameter than the main body part 11, and has a notch 17 with an arcuate cross section laterally, which cooperates with the shaft 36 rotated by the knob 34 of the device 22. , locking the hollow needle 60 in place is as previously described.

As shown in FIGS. 1 and 4, the disk member 62
A C-shaped ring 64 is used as a ring 64, and is fitted in a snap-type manner into an annular groove 74 provided perpendicularly to the axis near the left end of the large-diameter attachment portion 11a of the hollow needle 60. . The C-shaped ring 64 is the fourth
As shown in the figure, it has fingers 66, 68 and 70, and when this C-shaped ring 64 is fitted into the annular groove 74, these fingers 66, 68 and 70 are formed.
The tips of 8 and 70 engage the annular groove 74. The tips of each of the fingers 66, 68, 70 are concavely curved to provide good engagement with the annular groove 74. A disc member 62 consisting of a C-shaped ring 64 is open along an arc,
Opposing surfaces 80, 82 are formed therein.

Further, the disk member 62 has opposing surfaces 80 and 82.
It is attached to the hollow needle 60 so as to be aligned with the opening groove 14 defined by. This allows the filament part of the locking piece to slide along the hollow needle 60 in the groove 14 without being obstructed by the C-ring 64 when the attachment device 22 is in use.

When the hollow needle 60 is attached to the locking piece attachment device 22, the disk member 62 consisting of the C-shaped ring 64
Since the attachment device 22 comes into contact with the front end surface of the nose 20, even if a transverse stress perpendicular to the longitudinal direction of the hollow needle 60 acts on the hollow needle 60, it is dispersed and transmitted to the end surface of the nose 20. Therefore, the hollow needle 60 may be bent or broken, or the attachment device 2 may be damaged.
Damage to 2 can be completely prevented or at least minimized.

Further, the hollow needle 60 in this embodiment can be easily adapted to the present invention because it is only necessary to form an annular groove 74 on a conventional hollow needle and attach a disc member 62 made of a C-shaped ring 64. Followed hollow needle 60
can be improved.

The locking piece attachment device 22 has a casing 26 formed in the shape of a pistol as shown in FIG. ing. This trigger part 30 operates as a driver for the locking piece attachment device 22, and when it is operated, a push rod (not shown) is driven, and the movement of this push rod causes the locking piece to be moved. The horizontal bar part is pushed into the hole 13 of the hollow needle 60. Note that this operation and operation are already well known, for example,
The details are disclosed in the publication.

When the knob 34 is in the position shown in FIG. 3, the shaft 36 engages the notch 17 of the hollow needle 60 so that the hollow needle 60 is locked within the bore 32. but,
When this knob 34 is rotated 180 degrees in the direction of arrow A, the notch 38 of the shaft 36 faces the notch 17 of the hollow needle 6, the lock in the hole 32 of the hollow needle 60 is released, and the hollow needle 60 is This allows for easy removal from the device 22.

The hollow needle 60 is attached to the nose 2 of the locking piece attachment device 22.
0 hole 32, and insert the shaft 3 into the same hole 32.
6, the disc member 62 abuts against the end surface of the nose 20 of the mounting device 22. Therefore,
If a force perpendicular to the longitudinal direction of the hollow needle 60, that is, a lateral stress, is applied, it will be transmitted to the end face of the nose 20 of the attachment device 22, thereby causing breakage of the hollow needle 60 or damage to the nose 20 of the attachment device 22. Damage to the end face is completely prevented or at least minimized.

If the conventional hollow needle broke the surface of the nose 20 of the attachment device 22, the entire attachment device 22 would have to be replaced, but this can be minimized by using the hollow needle 60 of the present invention. Deterred.

〔Effect of the invention〕

The functions and effects of the hollow needle used in the locking piece attachment device of the present invention have been explained at various places in the description of the object and structure of the invention described above, but if these are further listed together, they are as follows. It is as follows.

(1) A disc member consisting of a C-shaped ring is provided at the mounting part of the hollow needle like a pedestal, and this is seated on the front end surface of the nose of the mounting device, so that the hollow needle cannot be easily used during use. Bending and cutting are substantially prevented.

(2) Since the hollow needle can be prevented from breaking or bending, the nose surface of the locking piece attachment device can be substantially protected from destruction or damage.

(3) Damage to the internal structure of the locking piece attachment device caused by the hollow needle receiving excessive axial force and being press-fitted into the locking piece attachment device is minimized.

(4) Replacement of the entire hollow needle and locking piece attachment device can be minimized.

(5) Since it is only necessary to provide an annular groove in the attachment part of the conventional hollow needle and fit the disc member into this, it is possible to easily convert the conventional hollow needle to the hollow needle according to the present invention. be.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a hollow needle constructed according to the present invention, Fig. 2 is a side view of a locking piece attaching device equipped with the hollow needle of Fig. 1, and Fig. 3 is taken along line 3-3 in Fig. 2. FIG. 4 is an enlarged partial sectional view taken along the line 4--4 in FIG. 60... Hollow needle, 11... Main body, 11a...
Attachment part, 11b...Piercing part, 12...Point part,
13...Hole, 14...Groove, 16,62...Brim,
17, 38... Notch, 18... Groove, 20... Nose, 22... Locking piece attachment device, 64... Disc member, 66, 68, 70... Finger portion, 74... Annular groove.

Claims (1)

[Scope of Claims] 1. Includes a mounting part that is inserted into a mounting hole provided at the front end of the locking piece mounting device, and a piercing part that extends from the mounting part and has a sharp tip that is pierced into an article. It consists of an elongated main body, and the main body has a hole that is passed through in the longitudinal direction and that guides the horizontal bar of the locking piece, and a groove that guides the filament that connects the hole and the outer surface. In the hollow needle, near the boundary between the attachment part and the piercing part,
A hollow needle for a locking piece attaching device is provided with a groove perpendicular to the axis of the piercing portion, and a disc member formed by a C-shaped ring is fitted into the groove and fixed.