JPH0919312A - Piercer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a loud noise from being generated when a piercing needle is pierced through an earlobe by pushing the piercing needle out of a cartridge by moving a plunger forward with fixed force, piercing the piercing needle through the earlobe and fitting it with a stop tool. SOLUTION: A long hole 27 is formed at a cylinder part 25 where a plunger 5 is housed, a spring 29 is interposed between a spring receiver 21 protruded from the plunger 5 though the long hole 27 and a spring receiver 28 outside the cylinder pert 25, and the plunger 5 is moved forward by the energizing force of the spring 29. First and second stoppers 31 and 32 for regulating the advancing end of the plunger are provided inside and outside the cylinder part 25, and a first impulse absorbing member 33 is provided between a flange 19 and the first stopper 31. On the other hand, the spring receiver 21 of the plunger 5 is also used for the stopper means, and a second impulse absorbing member 34 is provided between the spring receiver 21 and the second stopper 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piercer for piercing a piercing needle having a decorative head through an earlobe and fitting it into a stopper at the back of the earlobe.

[0002]

2. Description of the Related Art A piercer body for accommodating and holding a piercing needle in a cartridge, and a stopper holder for holding the stopper in front of a piercing needle holder of the piercing body are provided. Piercers are generally known in which an earlobe is interposed between the body and a piercing needle which is pushed out by a plunger so as to pierce the earlobe and fit into a stopper.

[0003] For example, Japanese Utility Model Laid-Open No. 4-89014 discloses a piercer made of synthetic resin in which a piercer body and a stopper holder are connected in a U-shape. In this piercer, the piercing needle holding portion is formed in a cylindrical shape,
Here the cartridge and plunger are inserted,
The piercing needle is pushed out of the piercing needle holder together with the cartridge by pressing the plunger with a finger from the back.

In Japanese Patent Application Laid-Open No. 6-113910, a pinion is provided on a piercer body, and a rack integrated with a plunger and a rack integrated with a handle are vertically arranged in parallel to the pinion. A gun type in which the plunger is advanced by engaging and pulling a handle is described.

[0005]

However, in the former one of the above-mentioned prior arts, the plunger is pushed only by the force of the finger, and in the latter case of the rack and pinion type, the pulling force of the handle is used. Since the plunger is moved forward, it is difficult to adjust the force in any case, and it is difficult to pierce the earlobe with the piercing needle all at once.

On the other hand, the present inventor considered using the spring to advance the plunger with a constant force, but when the plunger collides with the stopper at its forward end, a sound is emitted, There was a problem that it resonated loudly in my ears.

[0007]

To solve the above problems, the present inventor can disperse and absorb the impact force when the plunger hits the stopper without complicating the structure of the piercer itself. This is the solution to this.

That is, the invention according to claim 1 for solving the above-mentioned problems is a piercer for inserting a piercing needle having a decorative head into an earlobe and fitting it to a stopper at the back of the earlobe. A cartridge mounting portion in which the accommodated cartridge is mounted with the needle portion of the piercing needle facing forward, and the cartridge mounting portion is provided in front of the cartridge mounting portion, and the stopper has its fitting hole in the needle portion of the piercing needle. A stopper mounting portion that is mounted facing each other, a cylinder portion that is formed on the back of the cartridge mounting portion and that accommodates a plunger for pushing the piercing needle toward the stopper, and the plunger is attached to the front. A biasing spring, a holding position for holding the plunger at the rear position of the piercing needle against the bias of the spring,
The plunger is provided with a release movably provided between a release position that allows the plunger to move forward so as to push out the pierce needle by the bias of the spring, While the long hole is formed, the plunger is provided with a spring receiver protruding outside the cylinder portion from the long hole, and the spring is formed on the spring receiver of the plunger and the outside of the cylinder portion. A flange is formed on the plunger and is interposed between the spring receiver and a first stopper for preventing the forward movement of the flange and restricting the forward end of the plunger is provided inside the cylinder portion. On the other hand, the forward movement of the spring receiver of the plunger is blocked outside the cylinder portion to regulate the forward end of the plunger. Wherein the second stopper is provided.

According to a second aspect of the present invention, in the piercer described in the first aspect, the flange and the first
The first shock absorber is interposed between the stopper and the second shock absorber, while the second shock absorber is interposed between the spring receiver and the second stopper.

According to a third aspect of the present invention, in the piercer according to the first or second aspect of the invention, the grip portion integrated with the cylinder portion and the stopper mounting portion are integrated. A lever, the grip and the lever are slidably fitted back and forth so that the distance between the cartridge mounting portion and the stopper mounting portion can be adjusted. A spring is interposed so that the above-mentioned interval is widened between the two.

[0011]

In the invention according to claim 1, when the plunger is held at the rear position of the pierce needle against the bias of the spring by the release, and the release is set to the release position from this state, the plunger causes the spring to move. The piercing needle is pushed out from the cartridge by advancing with a constant force by the urging.

When the plunger reaches the forward end, the flange of the plunger is prevented from advancing or the first stopper in the cylinder portion prevents the forward movement of the spring receiver protruding from the plunger. 2 Stopped by a stopper. That is, since the forward force of the plunger is distributed and received by the first stopper and the second stopper, the noise when the plunger reaches the forward end becomes small.

Further, since the spring and the second stopper are provided on the outer side of the cylinder portion, not on the inner side thereof, the installation of the spring and the formation of the second stopper do not lead to an increase in the size of the cylinder portion. Since the spring receiver of the plunger supporting the spring is also used as the stopper means, it is possible to avoid a complicated structure.

In the case of the invention according to claim 2, when the plunger reaches the forward end, the flange of the plunger hits the first stopper in the cylinder portion via the first shock absorbing material and protrudes from the plunger. The spring receiver contacts the second stopper on the outside of the cylinder through the second shock absorbing material. That is, the forward force of the plunger is dispersedly received by the first stopper and the second stopper, and the shock is absorbed by the respective shock absorbers, so that the sound when the plunger reaches the forward end is generated. It will be extremely small.

Next, in the case of the invention according to claim 3, the grip portion integrated with the cylinder portion and the lever integrated with the stopper mounting portion are gripped, and the lever is provided on the grip portion side. By pulling against the bias of the spring, the earlobe can be clamped between the cartridge and the stopper. Therefore, since the piercing needle can be pushed out while the earlobe is positioned so as not to move between the cartridge and the stopper, the piercing needle can be accurately and easily pierced at the intended position of the earlobe. it can.

[0016]

According to the first aspect of the present invention, a long hole is formed in the cylinder portion accommodating the plunger, and a spring receiver protruding from the plunger through the long hole and a spring receiver outside the cylinder portion. A spring is interposed between the first and second stoppers that regulate the forward end of the plunger on the inside and outside of the cylinder, and the first stopper prevents the flange of the plunger from advancing. On the other hand, since the spring receiver of the plunger is also used as the stopper means so that the advance of the spring receiver is blocked by the second stopper, the plunger can be kept constant while avoiding the structure of the piercer to be complicated or large. Can be mechanically moved forward with the force of, and the impact force when the plunger reaches the forward end is dispersed. It will be able to yield,
It is possible to pierce the earlobe with the piercing needle without fail and without making a loud noise, which improves the operability of the piercer and is advantageous in reducing the cost.

In the case of the invention according to claim 2, the first impact absorbing material is provided between the flange of the plunger and the first stopper, while the spring receiver of the plunger and the second impact absorbing material are provided.
Since the second shock absorber is provided between the stopper and the stopper, it is further advantageous in reducing the noise emitted at the forward end of the plunger.

According to the third aspect of the present invention, the grip portion integrated with the cylinder portion and the lever integrated with the stopper mounting portion are connected to the cartridge mounting portion and the stopper mounting portion. Since it is slidably fitted back and forth so that the space can be adjusted, and a spring is interposed between the grip and the lever so as to widen the space, the space between the cartridge and the stopper mounting part can be adjusted. The piercing needle can be pushed out while the earlobe is positioned and clamped so as not to move, which is advantageous in accurately and easily piercing the pierce needle at the intended position of the earlobe.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

<Overall Schematic Structure> The piercer shown in FIG. 1 is made of synthetic resin. In FIG. 1, 1 is a piercer body, 2 is a movable body, 3 is a cartridge containing a piercing needle, and 4 is a stopper. Is a retainer holder holding 5; 5 is a plunger; and 6 is a release.

The piercer body 1 is provided with a housing part for accommodating the plunger 5 and the release 6 on the upper part thereof, and a cartridge mounting part 7 for mounting the cartridge 3 is formed on the front surface of the housing part. The gripping portion 8 projects downward from the central portion of the portion.
The movable body 2 includes a stopper mounting portion 9 for mounting the stopper holder 4 in front of the cartridge mounting portion 7,
A slider 11 extending rearward from the stopper mounting portion 9 is slidably fitted to a lower portion of the housing portion of the piercing body 1, and a lever 12 projects downward from a rear portion of the slider 11, so that the lever 12 Is fitted to the grip portion 8 so as to be slidable forward and backward from the front surface thereof.

<Pierce Needle and Cartridge 3> As shown in FIG. 2, the pierce needle 13 has a needle portion 1 rather than a decorative head 13a.
The tip of the needle portion 13b is formed to be sharp, and an annular recess is formed at the back of the sharp portion following the sharp portion.

The cartridge 3 is provided with two upper and lower cylindrical pierce needle accommodating portions 14, 14 which are parallel to each other. As shown in FIG. 3, a flange 15 is provided at the rear end portion of both accommodating portions 14, 14. Has been formed. At the front end of each accommodating portion 14, upper and lower brackets protrude forward from a portion vertically separated from the piercing needle accommodating hole, and needle holding portions protrude from the tip of each bracket toward each other. A semicircular recess is formed at the center of the tip of each of the two needle holders so as to form a circular needle hole.

<Stopper and Stopper Holder 4> As shown in FIG. 2, the stop 16 has a flange formed at one end of the shaft portion and has a fitting hole opened to the flange side.

The stopper holder 4 is provided with upper and lower stopper retaining holes 17, 17 which are parallel to each other, and the shaft portion of the stopper 16 is fitted into each retaining hole 17. As shown in FIG. 3, flanges 18, 18 protruding left and right are formed at the front end of the holder 4.

Each of the accommodating portions 14, 14 of the cartridge 3 and each of the holding holes 17, 17 of the stopper holder 4 are formed so as to face each other.

<Plunger 5> The plunger 5 has a basic shape in which a front small-diameter portion 5a and a rear large-diameter portion 5b are continuous, and the decorative head 13a of the piercing needle 13 is provided on the front end surface of the small-diameter portion 5a. A hemispherical concave surface is formed on the surface.
An annular flange 19 is formed at the rear of the small diameter portion 5a. A plate-shaped spring receiver 2 is provided from the center of the large diameter portion 5b.
1 protrudes downward, and a finger hook 22 for pulling the plunger 5 backward is formed at the rear end of the large diameter portion 5b.

<Release 6> As shown in FIG. 3, the release 6 projects upward to the rear end of the base portion having a rectangular central cross section, and has a small diameter portion 5a and a large diameter portion 5b of the plunger 5. It is provided with an engaging portion 23 that comes into contact with a stepped portion of and, and is also provided with finger hooks 24, 24 that project left and right from the base portion. The finger contact surface on the upper surface of each finger hook 24 is formed as an inclined surface that is inclined downward as going backward.

<Relationship between Piercer Body 1 and Cartridge 3> The piercer body 1 comprises a body left portion 1a and a body right portion 1
b. The cartridge mounting section 7
Each of the left and right main body portions 1a and 1b is formed by a vertically long, opposed U-shaped groove formed in each of the right and left main body portions 1b. I have. The accommodation hole of the cartridge 3 matches with a cylinder portion 25 described later when the cartridge 3 is mounted on the cartridge mounting portion 7.

<Relationship between Piercer Body 1 and Plunger 5> At the upper part of the housing portion of the piercer body 1, a cylinder portion 25 is formed which extends rearward from the back of the cartridge mounting portion 7 and accommodates the plunger 5 so as to be movable back and forth. Has been done.

At the front end of the cylinder portion 25, an advancing hole into which the small diameter portion 5a of the plunger 5 is advanced is formed. The rear end of the cylinder portion 25 is open so that the large diameter portion 5b of the plunger 5 projects rearward.

Further, the cylinder portion 25 is connected to a release accommodating portion 26 for accommodating the release 6 whose lower surface near the center of the front portion thereof is open. The cylinder 25
A spring receiver 2 of the plunger 5 is provided on a lower surface of a rear portion of the plunger 5.
A long slot 27 is formed before and after projecting 1 downward.

A spring receiver 28 is formed below the rear portion of the cylinder portion 25 of the piercer body 1 so as to face the spring receiver 21 of the plunger 5 in the front-rear direction. A spring 29 that biases the plunger 5 forward is interposed.

Then, the periphery of the plunger advancing hole at the front end of the cylinder portion 25 prevents the forward movement of the annular flange 19 of the plunger 5 and prevents the first stopper surface 31 for restricting the forward end of the plunger 5. Has been formed. A wall extends downward from the front end of the elongated hole 27 of the cylinder portion 25, and the wall prevents the plunger 5 from moving forward of the spring receiver 21 and regulates the forward end of the plunger 5. 2 formed on the stopper surface 32. A ring-shaped first shock absorbing member 33 whose rear surface is applied to the annular flange 19 is fitted to the small diameter portion 5a of the plunger 5, and a second shock absorbing member 34 is fixed to the front surface of the spring receiver 21. At the forward end of the plunger 5, the first shock absorber 33 comes into contact with the first stopper surface 31, and the second shock absorber 34 comes into contact with the second stopper surface 32.

<Relationship Between Piercer Body 1 and Release 6> The release accommodating portion 26 is formed in a rectangular cross section so as to accommodate the base portion of the release 6 in a vertically movable manner. Then, the finger holding 24 of the release 6 is attached to the body left portion 1a and the body right portion 1b by the release accommodating portion 26.
Finger-hanging holes 35, 35 for projecting the left and right 24 are formed. Further, between the release 6 and the bottom surface of the release accommodating portion 26, the release 6 is urged upward, that is, the engaging portion 23 engages with the step portion of the plunger 5 and pushes the plunger 5 with the spring. A spring 36 for urging a holding position for holding the cartridge 3 at the rear position against the urging of the cartridge 3 is provided.

<Relationship between piercer body 1 and movable body 2>
A slide groove 37 in which the slider 11 of the movable body 2 fits is formed long in front and rear at a boundary portion between the housing portion of the piercer body 1 and the grip portion 8. This slide groove 3
Numeral 7 is a combination of opposed U-shaped grooves formed on each of the main body left portion 1a and the main body right portion 1b. The central portion of the lower surface is open over the entire length, and the lever 12 is gripped by the opening. It protrudes into the part 8. A long slide receiving surface 38 before and after receiving the lower surface of the lever 12 is formed at a lower end portion in the grip portion 8.

The inside of the grip portion 8 and the lever 1
2 has a spring receiver 41, 42 facing the rear end face.
And a spring 43 for urging the lever 12 forward with respect to the grip portion 8 is interposed between the spring receivers 41 and 42. In addition, the slider 11
A stopper 44 protrudes upward from the upper surface of the piercer, and the stopper 44 comes into contact with the front wall of the piercer body 1 at the forward end and the front wall of the release housing portion 26 at the backward end.

<Relationship between the movable body 2 and the stopper holder 4>
The stopper mounting portion 9 of the movable body 2 is formed by vertically opposed long U-shaped grooves formed in each of the main body left portion 1a and the main body right portion 1b. The four flanges 18 are fitted up and down freely.

<Use of Piercer> The plunger 5 of the piercer body 1 is pulled rearward against the bias of the spring 29, and the step between the small diameter portion 5a and the large diameter portion 5b is at the rear side of the release accommodating portion 26. When the pressure reaches, the release 6 moves upward due to the urging force of the spring 36, and the engaging portion 23 thereof engages with the step portion and holds the plunger 5 at the rear position.

In this state, the cartridge 3 accommodating the two piercing needles 13, 13 is mounted on the cartridge mounting portion 7 of the piercer body 1, while the two stoppers 16, 16 are mounted.
Is attached to the stopper mounting portion 9 of the movable body 2. The stopper holder 4 may be mounted on the movable body 2 in advance.

Then, the grip portion 8 and the lever 12 are gripped together by one hand, and the cartridge 3 of the piercer body 1 is held.
An earlobe is inserted between the movable body 2 and the stopper holder 4 of the movable body 2. Then, as shown in FIG. 4, the distance between the cartridge 3 and the stopper holder 4 is reduced by pulling the lever 12 toward the grip portion 8 so that the earlobe A is sandwiched. In this state, the thumb is put on the finger hook 24 of the release 6 projecting from both sides of the piercer body 1 and the release 6 is lowered. As a result, the plunger 5 is released from the holding by the release 6, and is forwarded by a constant force by the bias of the spring 29 to push the pierce needle 13 out of the cartridge 3. The piercing needle 13 penetrates through the earlobe A and fits into the stopper 16.

Since the forward end of the plunger 5 is restricted by the first stopper surface 31 on the inner side and the second stopper surface 32 on the outer side of the cylinder portion 25, the piercing needle 13 will not be excessively pushed out. And at this forward end,
The momentum of the plunger 5 is dispersed by the inner and outer stopper surfaces 31 and 32 of the cylinder portion 25, and the first and second
Are absorbed by the two shock absorbers 33 and 34, so that they hardly emit sound, and the user is prevented from being surprised by the collision sound.

Further, in the case of the above-mentioned embodiment, since the finger contact surface of the finger rest 24 of the release 6 is inclined downward to the rear,
Since the thumb is easily applied to the finger hook 24 while the grip portion 8 and the lever 12 are gripped, the force applied to the release 6 can be easily adjusted in combination with the fact that the release 6 operates in the vertical direction, and the operability is improved. Excellent.

The head portion 13a of the piercing needle 13 pushes and expands the needle holding portion of the cartridge 3 to the outside, but the bracket of the needle holding portion protrudes forward from a position vertically separated from the pierce needle accommodating hole. The head portion 13a of the piercing needle 13 does not bend the needle holding portion to the outside, and the needle holding portion is prevented from being broken.

After the piercing needle 13 is pierced through one earlobe of the user, the forward plunger 5 is pulled backward and held by the release 6, and the cartridge 3 and the stopper holder 4 are attached to the respective mounting portions 7. , 9 and then put them upside down and reattaching them, and pierce the other earlobe with the piercing needle 13 as before.

[Brief description of the drawings]

FIG. 1 is a perspective view of a piercer.

FIG. 2 is a vertical cross-sectional view showing a state of the piercer before extrusion of the vias needle.

FIG. 3 is an exploded perspective view of a piercer.

FIG. 4 is a vertical cross-sectional view showing the state of the piercer after extruding the vias needle.

[Explanation of symbols]

 1 Piercer main body 2 Movable body 3 Cartridge 4 Stopper holder 5 Plunger 5a Small diameter part 5b Large diameter part 6 Release 7 Cartridge mounting part 8 Grip part 9 Stopper mounting part 11 Slider 12 Lever 13 Pierce needle 13a Decorative head 13b Needle part 14 Pierce Needle accommodating portion 15 Flange 16 Stopper 17 Holding hole 18 Flange 19 Annular flange 21 Spring receiver 22 Finger rest 23 Engagement portion 24 Finger rest 25 Cylinder portion 26 Release accommodating portion 27 Long hole 28 Spring receiver 29 Spring 31 First stopper surface 32 Second Stopper surface 33 First impact absorbing material 34 Second impact absorbing material 35 Finger hook hole 36 Spring 37 Slide groove 38 Slide receiving surface 41, 42 Spring receiving 43 Spring 44 Stopper

Claims (3)

[Claims] 1. A piercer for inserting a piercing needle having a decorative head into an ear lobe and fitting the piercing needle to a stopper at the back of the ear lobe, wherein a cartridge accommodating the piercing needle moves the needle portion of the piercing needle forward. A cartridge mounting portion to be mounted in an oriented state; a stopper mounting portion provided in front of the cartridge mounting portion, the stopper being mounted with its fitting hole facing the needle portion of the piercing needle; A cylinder portion that is formed on the back of the mounting portion and that accommodates a plunger for pushing the pierce needle toward the stopper, a spring that urges the plunger forward, and a spring that urges the plunger to the spring. Against the force, the plunger pushes the piercing needle by the biasing force of the spring. And a release movably provided between the cylinder portion and a release position that allows the forward movement. A spring receiver protruding from the elongated hole to the outside of the cylinder portion is provided, and the spring is interposed between the spring receiver of the plunger and the spring receiver formed on the outside of the cylinder portion. A flange is formed, and a first stopper for preventing the forward movement of the flange and restricting a forward end of the plunger is provided inside the cylinder portion, while a spring receiver for the plunger is provided outside the cylinder portion. A piercer that is provided with a second stopper that prevents the forward movement of the plunger and regulates the forward end of the plunger. 2. The piercer according to claim 1, wherein a first impact absorbing material is interposed between the flange and the first stopper, while being interposed between the spring receiver and the second stopper. A piercer having a second shock absorbing material interposed. 3. The piercer according to claim 1 or 2, further comprising: a grip portion that is integral with the cylinder portion, and a lever that is integral with the stopper mounting portion. The lever is slidably fitted back and forth so that the distance between the cartridge mounting portion and the stopper mounting portion can be adjusted, and the distance is increased between the grip portion and the lever. A piercer characterized by having a spring interposed.