JPH0454904A - Piercher - Google Patents

Abstract

PURPOSE:To make it possible to conduct an ideal piecing if not by an skilled person by pulling back a trigger to pinch the ear lobes with the front and rear members of a cartridge and to confirm the position and by pulling completely back the same trigger to relieve the anchor of the ejection axis and to penetrate instantly the piercing needle into the ear lobes. CONSTITUTION:A pierce penetrating device is placed in the vicinity of the ear lobes while the ear lobes are placed between the front and rear members C', C'' of a cartridge C and a trigger 4 is pulled. Then the front member C' goes back to the rear member C'' to pinch the ear lobes between the two members. When a safety device is relieved and the trigger is operated, the inclined plane 48 of a relief means 8 pushes an anchoring member 7 to the lower side through an interlocking pin 47, the projecting part of said members is relieved from an anchoring staged part 34 to advance the ejection axis 5 instantly with a stored pressure of an ejection spring 6 to eject a piercing pin 21. Therefore, the piercing pin 21 instantly penetrates the ear lobes Y to make the pin tip fit with a fixture 22.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an instrument for piercing an earlobe for so-called piercing.

(Prior Art) Instruments for piercing the earlobe for use in pierced earrings are well known, such as Japanese Patent Publication No. 59-30401. The device of this invention has a plunger structure that uses a cartridge sealed to maintain sterility until use, and the tip of the plunger assembly is composed of a supporting member and an actuating portion that are combined to be slidable relative to each other. The cartridge is set in the holder, and the piercing needle is inserted into the earlobe by pressing the actuator.

(Technical Problem) In the instrument of the invention described above, the force of the finger operating the instrument is the force that directly pierces the earlobe with the piercing needle.

For this reason, the time it takes to pierce the knife can be longer or shorter depending on the operator's movements, and the level of skill will determine this.

Therefore, the inventor of the present invention developed and filed an application for a piercing device that ejects a piercing needle with the elasticity of a spring by operating an operating lever while holding the device with one hand and pinching the earlobe. The present invention has been made to further develop the perforator, and makes it possible to more accurately and safely pierce an earlobe with a piercing needle.

Therefore, an object of the present invention is to allow instantaneous piercing of the piercing needle using the elasticity of the accumulated pressure with one hand, and to operate the piercing needle at the right time while checking the degree of pinching of the earlobe, thereby eliminating the need for skill. The object of the present invention is to provide a piercing device that can perform more ideal piercing.

(Technical Means) The object is to have a hollow main body 2 which has a grip 1 at the bottom for gripping with the hand, and a front part of the grip that is movable rearward and is biased by a spring in the return direction. A support rod 3 for setting the front member of a piercing cartridge consisting of a member is provided with a trigger 4 protruding forward, and a trigger 4 is provided within the main body so as to be movable back and forth, and when moving forward, the tip moves the rear member of the cartridge forward. An externally operable injection shaft 5 that applies pressure, a spring 6 that accumulates pressure when the injection shaft 5 is retreated, and a locking member 7 that is biased in the same direction so as to lock the injection shaft 5 in the pressure accumulation position. This can be achieved by a configuration including a release means 8 for moving the locking member 7 in order to unlock the injection shaft 5 by operating the trigger 4.

The trigger 4 is an operating member for actually ejecting the piercing needle, and at the same time, it is also effective for bringing the front member of the piercing cartridge closer to the rear member and confirming the piercing position in the earlobe. Near the position, release means 8 act on the locking member 7 in order to unlock the injection shaft 5.

In the illustrated example, the release means 8 is integrally provided so as to protrude from the upper part of the trigger 4, but it may or may not be integral in structure. Also, the injection of the piercing needle is triggered by trigger 4.
In view of the fact that this is a one-touch operation, a safety device 10 is provided in conjunction with the trigger 4 to prevent accidental operation until the piercing needle is actually ejected, and the trigger 4 cannot be moved unless it is removed. It can be done.

The safety device IO can achieve its purpose regardless of its structure as long as it directly or indirectly restricts the movement of the trigger 4 or disconnects the trigger operation from the injection shaft 5.

(Example) This will be explained below with reference to the drawings.

The main body 2 is a hollow structure made up of two flat case-shaped left and right parts 11 and 12, each of which has a grip 2 at its lower part.

The front surface of the grip 2 is open, and a trigger 4 with a finger hook protruding forward from the opening is incorporated so as to be movable back and forth. Reference numeral 13.14 denotes a sliding groove having a substantially U-shaped cross section formed in the front-rear direction in the middle of the front of both parts of the main body, and is integrally formed in the upper part of the puller 2 so as to protrude forward. supporting rod 3
engages both sides of the 15 is a rod-shaped spring holder provided in the trigger circle; 16 is a rod-shaped spring holder provided in the main body as an extension thereof; and a return spring 17 that acts in the direction of returning the trigger 4.
Support both ends of.

The support rod 3 slides together with the trigger 4 in the front-back direction. The upper surface of the tip part is used as a cartridge attachment part, and the front member C' of the cartridge C is an engaging part 18 formed on the support rod 3.
engage with. This cartridge C is a sealed sterile type with the piercing needle 21 installed in the rear member C'' and the stopper 22 installed in the front member C', respectively, and is disposable.The front member C'
has an elongated piece e or the like protruding from the lower surface of an engaging partner 19 that engages with the engaging portion 18, and the ductile e engages with an engaging groove f provided at the lower part of the rear member C''. It is preferable that the piercing needle 21 has a structure that allows them to approach and separate from each other.The piercing needle 21 is installed in a housing hole 23 located on the injection axis of the rear member C'', and the stopper 22 is installed in a groove of the front member C'. It is preferable to have a structure such that it can be assembled coaxially with 24 and can be pulled out upwards.

25 is a member that stops the piercing needle 21, and the injection shaft 5
rupture due to advancement of. Note that 26 is a protrusion that prevents the trigger 4 from being pulled out, and is engaged with the front plate of the main body.

The injection shaft 5 is a rod-shaped member built into the upper part of the main body so as to be movable back and forth, and has a large diameter part 31 in the center and small diameter parts 32 in front and behind it.
33, the entire surface of the large diameter portion serves as a locking step portion 34 for the locking member 7, and the rear surface serves as a spring receiver 35 for the pressure accumulating spring 6. Reference numeral 36 denotes a shaft volume portion formed in the main body of the relevant part, and the front end thereof is an injection ratio port 38 from which the tip portion 37 of the injection shaft 5 projects.
The rear part serves as a spring holder 39 for the pressure storage spring 6. An operating knob 9 is protruded from the upper surface of the injection shaft 5, and an elongated hole 40 through which it passes is formed on the upper surface of the main body.

A locking stepped portion 34 is used to stop the injection shaft 5 in a pressure-accumulating state.
The engaging member 7 having the protrusion 41 that engages with the shaft number volume portion 36
It is pivotally supported by the main body 2 so as to protrude and retract into the housing portion through a hole 42 formed in the partition wall. The engaging member 7 is connected to the trigger 4
It is biased in the engaging direction by a spring 44 interposed between a spring receiver 43 provided on a sliding groove that also serves as a guide for the trigger and the lower surface of the engaging member, which is located at the upper part of the trigger and the lower part of the injection shaft 5. It has a hole 46 swingably supported by a support shaft 45 in the front part, and a pin 47 for interlocking with the trigger 4 is provided in the rear part. The interlocking bottle 47 is pulled down by a release surface 48 which is provided as a means 8 for unlatching the injection shaft 5 and is inclined from the front lower part to the rear upper part, which is protruded from the rear upper surface of the trigger 4, and the injection shaft 5 and the locking member are pulled down. The engagement with 7 is released. The main body 2 on both sides of the tip of the injection shaft 5 has the cartridge C.
A locking groove 28 that engages and sets the locking piece 27 of the rear member C'' is provided as a cartridge mounting portion.

The perforator 50 as described above is made of resin and can also be made disposable.

Since the trigger 4 is locked by the locking member 7 against the force of the spring 17 with accumulated pressure, there is a risk that the injection shaft 5 will be activated unexpectedly if pressure is also accumulated.
A safety device 10 can be provided to prevent the trigger 4 from being accidentally moved until all preparations for injection are completed. The illustrated device 10 is arranged at the rear of the trigger 4 to prevent the trigger 4 from being operated, and has a safety position in which it contacts the rear end of the trigger 4 and stops its retraction, and an ejection position in which the trigger 4 is allowed to retract. It is rotatably supported by a main body support shaft 51 at an intermediate portion thereof, and abuts against the trigger 4 at its tip 52. Reference numeral 53 denotes a rear horizontal shaft, which is operated by an operating piece 55 provided externally through a small hole 54 in the main body.

Reference numeral 56 denotes a tip oblique side, which is provided to prevent collision with the inclined release surface 48 of the release means 8 when the front part of the device is lifted at the injection position (Figs. 7 and 8). . Reference numeral 57 is the rear end of the support rod 3, and depending on its positional relationship with the safety device tip 52, when the safety device 10 is engaged, the trigger 4 can be pulled all the way (either within the range of not being able to pull it or being able to pull it to the verge of ejection). You can set the trigger operation mode.

(Function) The earlobe perforator 50 configured as described above functions as follows in use. Before operation, the instrument is in the state shown in FIG. 3, with the trigger 4 in the advanced position by the spring 17 and the firing shaft 5 also in the advanced position by the firing spring 6. Take out the sealed cartridge C and remove both the front and rear members c'
, c'' in the front and back, and set the front member C' in the engaging portion 18 of the support rod 3 and the rear member C'' in the locking groove 28 of the main body, respectively (FIG. 4). When the operation knob 9 is further slid backward, the locking member 7 is attached to the locking step 34 of the injection shaft 5.
The projection 41 of the injection spring 6 is engaged, and pressure is accumulated in the injection spring 6.

Next, the perforator 5o is brought close to the earlobe Y, the earlobe is positioned between the front and rear members c'c" of the cartridge C, and the trigger 4 is pulled (.Then, the front member C' retreats toward the rear member C", and the earlobe is It is possible to check whether the perforator is correctly oriented to the desired point on the earlobe by placing the Y between the two parts (Figure 5).Of course, the cartridge C is hygienically clean and the earlobe Y is also clean. Assume that it has been disinfected.

When the safety device 10 is set, the trigger can be operated until the cartridge C is set or the next earlobe Y is positioned between the front and rear members c' and c'' of the cartridge C. However, since the rear end 57 of the support rod touches the tip 52 of the device beyond that point, there is no chance of accidental ejection.

When the safety device 10 is released and the trigger 4 is operated, the inclined release surface 48 of the release means 8 pushes the locking member 7 downward via the interlocking pin 47, so that the protrusion 4 of the member 7 engages with the locking step. 34
The injection shaft 5 moves forward at once, and the piercing needle 21 is ejected. Therefore, the piercing needle 21 instantly passes through the ear 5Y and the needle tip fits into the stopper 22 (FIG. 6). When the piercing needle 21 is ejected, the tip 37 of the injection shaft 5 enters the accommodation hole 23, and the piercing needle 21 breaks the stop member 25 with its head and is ejected.

After that, when the trigger 4 is returned and the support rod 3 is advanced, the piercing head comes out forward from the rear member C'', and the stopper 22 moves into the groove 2.
Remove from 4 upwards to complete the attachment to the earlobe Y.

(Effects) Since the present invention is configured and operates as described above, by pulling the trigger 4 while clenching the grip 1, the earlobe Y is held between the front and rear members C'C'' of the cartridge, and the position is confirmed. Further, by pulling the same trigger 4, the locking of the injection shaft 5 is released, and the elasticity of the stored pressure spring 6 makes it possible to instantaneously pierce the earlobe with the piercing needle. A series of operations other than the retracting operation proceed by pulling the trigger 4, and even non-experts can stably perform ideal drilling.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is an exploded perspective view, FIGS. 3 to 6 are sectional views explaining the operating state, and FIGS. 7 and 8 are cross-sectional views. Cheap. FIG. 9 is a cross-sectional view of the safety device while the entire device is in operation and after it has been released. 1...Grip, 2...Main body, 3...Support rod, 4...
・Trigger, 5, injection shaft, 6, integrally provided with support rod 3
...Injection, spring for 5, 7...locking member, 8...
A release means integrally provided on the trigger, 9...operation knob, 10...safety device. Patent application person Gogo Nakajima +: agent Patent attorney Translated by I H1■Sat Figure 3 Figure 4 Figure 5 Figure 6

Claims (3)

[Claims] (1) A piercing cartridge consisting of a hollow main body 2 having a grip 1 at the bottom for gripping with the hand, and a front and rear parts, which are movable backwards at the front of the grip and are biased by a spring in the return direction. A support rod 3 for setting the front member is provided with a trigger 4 protruding forward, and a trigger 4 is provided within the main body so as to be movable back and forth, and the tip of the trigger presses the rear member of the cartridge forward when moving forward, and is externally operable. injection shaft 5 and injection shaft 5
A spring 6 whose pressure is accumulated by the backward operation of
and a release means 8 for moving a locking member 7 to unlock the injection shaft 5 by operating the trigger 4. (2) The piercing device according to claim 1, wherein the injection shaft 5 has an operation knob 9 that is integrally provided therewith and projects outward from the main body 2. (3) A safety position that is located at the rear of the trigger 4 and contacts the rear end of the trigger 4 to stop its retreat;
The piercing device according to claim 1, further comprising a safety device (10) whose position can be adjusted between an injection position and an ejection position that allows the trigger (4) to retreat.