JP2003266387A - Piercing tool for hollow vessel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel and useful piercing tool for hollow vessel easy to operate with excellent safety with extremely simple structure. <P>SOLUTION: This piercing tool for hollow vessel 1 comprises a piercing shaft 5 having a piercing needle 3 at the tip, a can holder 7 axially slidably provided at the tip part of the piercing shaft 5, and a hammer handle 9 axially slidably provided at the base end part of the piercing shaft 5. An engagement groove 27 to be engaged with a guide pin 13 provided on the piercing shaft 5 is formed in the can holder 7. This tool further comprises a compression spring 29 for energizing the piercing needle 3 to be regularly stored in a slidable cylindrical part 23 and protruded from the slidable cylindrical part 23 only in piercing operation. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for punching, for example, a hole in a hollow container filled with a spray can or a liquefied gas to expel gas or discharge residue, and has a particularly simple structure. The present invention relates to a hollow container punching tool capable of efficiently and safely performing a punching operation.

[0002]

2. Description of the Related Art One of the problems that have been encountered in the recovery of incombustibles is the work of making holes in hollow containers such as spray cans. Conventionally, drilling work such as spray cans was performed using sharp instruments such as nails, cones or awls, but during drilling work,
The residue left in the spray can spouted, and clothes were often soiled, accidentally hitting the face or hands, or getting into the eyes, causing problems. Recently, a tool that can safely and easily perform a drilling operation of a spray can has been developed and gradually put into practical use.

For example, in Japanese Utility Model Laid-Open No. 1-170463, as shown in FIG. 7, a guide tool 1 equipped with a packing 101 for holding a spray can and preventing scattering of residues to the surroundings.
03, a hollow injection needle type needle 105 slidably fitted in the guide tool 103, and a hitting or pushing button member 107 provided on the head of the needle 105.
There is disclosed a tool for punching, which comprises: This tool is useful in that it has a packing 101 and is excellent in stability for holding a spray can, and that a hollow injection needle type needle is used to reduce the risk of causing ejection of residue. ing.

However, with one hand, the guide tool 103
Since the button member 107 is used by hitting or pushing it with the other hand, the body is inevitably brought closer to the spray can. Therefore, an operator unfamiliar with the handling of this tool may continue to encounter an accident due to the ejection of the residue. In addition, it takes time to attach the packing 101 to the spray can, there are unexpected injuries due to damage due to impact, and punctures due to the needle 105, and the danger has been pointed out for that purpose.

[0005]

SUMMARY OF THE INVENTION The present invention was devised in view of the problems of the prior art as described above, and has a very simple structure, simple operation, and excellent safety. The object is to provide a useful hollow container punching tool. Further, when the coating spray can is pierced, the paint remaining in the can enters the needle 105, and the paint may adhere to the inner peripheral surface of the needle 105 and dry to cause clogging. Needle 10 to prevent this
Cleaning the inside of 5 is very troublesome.

[0006]

In order to achieve the above object, the invention according to claim 1 provides a piercing shaft having a piercing needle at its tip, and a distal end portion of the piercing shaft slidably in the axial direction. And a hammer handle provided at the base end of the boring shaft so as to be slidable in the axial direction.

According to a second aspect of the present invention, in the hollow container punching tool according to the first aspect, the hollow container holder actually holds the hollow container and forms an ejection path for a residue ejected from the hollow container. Holder part and a sliding cylinder part that is slidably fitted onto the drilling shaft. Of these, the sliding cylinder part has an engagement groove that engages with a guide pin provided to the drilling shaft. It is characterized by being formed.

According to a third aspect of the present invention, in the punching tool for a hollow container according to the second aspect, the hollow container holder always stores a punching needle in a sliding cylindrical portion and slides only when a punching action is performed. It is characterized in that a compression spring for urging the piercing needle so as to project from the tubular portion is provided.

According to a fourth aspect of the present invention, in the hollow container punching tool according to any one of the first to third aspects, the hammer handle includes a guide sleeve slidably fitted on the drilling shaft. The present invention is characterized in that a hammer weight portion for hitting or pressing the base end head portion of the perforation shaft and a handle grip serving as a grip portion are provided.

According to a fifth aspect of the present invention, in the hollow container perforating tool according to any one of the first to fourth aspects, the length of the perforating shaft is set to a length that enables an operator to work in a standing posture. It is characterized by that.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the punching tool for a hollow container of the present invention will be specifically described with reference to the illustrated embodiment as an example. In the present embodiment, a cylindrical spray can A is taken as an example of a hollow container, and a stock-type hollow container punching tool 1 capable of performing work easily, reliably and safely with one hand operation of the spray can A. did. Specifically, the piercing needle 3 is attached to the tip.
And a can holder 7, which is an example of a hollow container holder that is provided slidably in the axial direction at the tip of the punching shaft 5, and is slidable in the axial direction at the base end of the punching shaft 5. Hammer handle 9 provided on the
It is basically configured by including and.

The piercing shaft 5 is a long round bar-shaped member, and the piercing needle 3 is provided at the tip thereof as described above. The piercing needle 3 pierces the cylindrical body of the spray can A,
This is a portion where a through hole 11 for degassing is formed in the peripheral body portion. Therefore, the spray can A has sufficient strength to break through the peripheral body portion and has a sharp cone shape. In addition,
The perforation shaft 5 can be configured by a round pipe instead of a round bar, and in this way, the perforation tool 1 for a hollow container can be made lightweight. A guide pin 13 is provided above the piercing needle 3. The guide pin 13 engages with an engagement groove, which will be described later, formed on the can holder 7 to restrict rotation of the can holder 7 in the circumferential direction so that the can holder 7 can slide only in the axial direction. Has the role of guiding. In this embodiment, a hexagon socket head cap screw is used as an example, and the guide pin 13 is formed by being screwed into the female screw portion 15 formed on the perforated shaft 5.

A pin hole 17 for receiving a fixing pin for mounting a compression coil spring, which will be described later, is provided above the guide pin 13. On the other hand, on the base end side of the perforation shaft 5, a base end head 1 having a stepped outer diameter is formed.
9 is provided. The base end head portion 19 is a portion that directly receives an impact from the hammer handle 9 described later, and has a role of transmitting the impact received from the hammer handle 9 to the can holder 7 provided on the distal end side of the boring shaft 5. .

The can holder 7 is constructed by integrally including a holder portion 21 that actually holds the peripheral body portion of the spray can A and a sliding cylinder portion 23 that is slidably fitted on the perforated shaft 5. ing. The holder portion 21 is intended for the spray can A in the present embodiment, but as shown in FIG. 3B, it can be used for holding various types of spray cans from a small can A1 to a large can A2. The curved shape is used so as to control the ejection path of the residual gas and the residual gas. A circular hole 25 for receiving the lower end portion of the sliding cylinder portion 23 is formed at the center of the holder portion 21, and the lower end portion of the sliding cylinder portion 23 is fitted into the hole portion 25. Welded to integrate the two.

When the sliding cylinder portion 23 and the holder portion 21 are made of plastic, they may be integrally molded. Further, as will be described later, when only the holder portion 21 is made of plastic, the holder portion 21 made of plastic may be separately manufactured and fixed to the sliding cylinder portion 23 with an adhesive. Outsert molding may be used. The sliding cylinder portion 23 of the can holder 7 is formed with the engaging groove 27 that engages with the guide pin 13 as described above. In the present embodiment, as an example, it is formed in an oval shape, and the length of the engagement groove 27 is set so that a sufficient stroke can be ensured for allowing the piercing needle 3 to be retracted from the sliding cylinder portion 23. ing.

Above the sliding cylinder portion 23, the sliding cylinder portion 2 is always provided.
There is provided a compression coil spring 29 which stores the piercing needle 3 in the piercing member 3 and urges the piercing needle 3 to project from the sliding cylinder portion 23 only during the drilling operation. The compression coil spring 29 is contracted between the fixed pin 31 attached to the pin hole 17 and the upper end of the sliding cylinder portion 23 with a washer or the like interposed as appropriate. Also compression coil spring 2
The urging force on the can holder 7 associated with the compression of 9 provides a sufficient stroke for the piercing needle 3 to penetrate the peripheral body portion of the spray can A, increases the holding force of the spray can A, and the thrust by the impact and the piercing needle 3 It is a biasing force that can harmonize with the pulling force of.

The hammer handle 9 has a guide sleeve 35 slidably fitted on the boring shaft 5, a hammer weight portion 37 for hitting or pressing the base end head portion 19 of the boring shaft 5, and an actual hand. It is configured by including a handle grip 39 that serves as a grip portion for gripping. The guide sleeve 35 has an inner diameter slightly larger than the outer diameter of the base end head portion 19, the lower end of the guide sleeve 35 is further reduced in diameter, and is slightly larger than the outer diameter of the perforation shaft 5, and the base end head portion 19 has a larger diameter. The inner flange-shaped locking portion 41 is smaller than the outer diameter of the.

The hammer weight portion 37 is a guide sleeve 3
5 is formed by closing the upper part of the base end head 1.
It is a solid body with a weight that can give a sufficient impact to 9. The handle grip 39 is a cylindrical member whose upper end surface covering the portion of the guide sleeve 35 on the hammer weight portion 37 side is closed, and an outer flange-shaped collar portion 43 is formed in the lower portion. The handle grip 39 configured in this manner is formed of a plastic material or a rubber material having appropriate flexibility since it is a portion to be directly gripped by hand, whereas other members are made of metal as an example. It

Next, a description will be given of the operation of punching the spray can A using the hollow container punching tool 1 thus constructed and the operating state of each part of the hollow container punching tool 1. The worker stands one step away from the spray can A, stands at a position substantially orthogonal to the longitudinal direction of the spray can A,
Handle grip 3 with one hand in a comfortable posture while standing
Holding 9, the holder part 21 is placed on the peripheral body part of the spray can A with the can holder 7 facing down. Next, the hammer handle 9 is dropped, and the base end head portion 19 of the drilling shaft 5 is hit to apply an impact, and the drilling shaft 5 is lowered against the biasing force from the compression coil spring 29.

When the piercing needle 3 at the lower end descends together with the piercing shaft 5, the piercing needle 3 projects from the lower end of the sliding cylinder portion 23, and the piercing needle 3 is driven into the peripheral body portion of the spray can A to form the through hole 11 for degassing. Make a hole. Further, at this time, since the ejection path of the liquid and the residual gas remaining in the spray can A is controlled by the holder portion 21, the ejection path is limited to the downward direction and the longitudinal direction of the peripheral body portion of the spray can A. Therefore, there is no possibility that the residue and the residual gas of the spray can A will be applied to the operator. After the through hole 11 is formed in the spray can A as described above, the handle grip 39
When you loosen the hand holding the
The piercing shaft 5 is retracted by the urging force of (1) and the piercing needle 3 is automatically withdrawn from the spray can A, so to speak. At this time, since the spray can A is pressed by the holder portion 21 receiving the urging force of the compression coil spring 29, the piercing needle 3 can be smoothly removed from the spray can A. The perforating needle 3 is attached to the sliding tubular portion 23.
It is in a state of being housed inside.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the scope of the present invention. Also included in the present invention.

The shape of the handle grip 39 is not limited to that of the embodiment shown in FIGS.
As shown in (b), the perforation shaft 5 may be gripped in a direction orthogonal to the axial direction. Incidentally, FIG. 5A shows a handle grip 39 for one-hand operation, and FIG. 6B shows a handle grip 39 for two-hand operation.

In the hollow container punching tool 1 shown in FIGS. 6A and 6B, the holder 21 is made of plastic, and the magnet M is fixed to the holder 21. According to this hollow container punching tool 1, the iron can is attracted by the magnet M and securely held by the holder portion 21. It should be noted that the spray can A can be detached from the magnet M when the holder 21 and the can are lightly impacted, for example, by hammering the hammer handle with an appropriate magnetic force of the magnet M, as shown in FIG. . Further, by providing the magnet M, the punching tool 1 for a hollow container 1
Can also be used as a tool to separate iron and aluminum cans.

The engaging groove 27 may be provided at a position deviated by 90 ° from the position shown in the above embodiment.
With such a configuration, since the worker stands in the above-mentioned position, even if the residue and the residual gas of the spray can are ejected through the engaging groove 27, the residue and the residual gas are sprayed. It will be ejected in the longitudinal direction of the peripheral body portion of the can, and can be prevented from hitting the body.

[0025]

As described above, according to the present invention, it is possible to open a hole in the spray can in a comfortable posture while standing without bringing the face close to the spray can. Further, the spray can is securely held by the can holder, and the ejection directions of the residue and the residual gas from the through holes formed in the spray can are controlled in advance, which is extremely safe. In addition, the use of a hammer handle requires only a small pressing force for forming a through hole in the spray can, which also reduces the work effort. Further, by providing the guide pin and the engaging groove, there is no danger that the can holder will rotate during the work,
By adopting the compression coil spring, the piercing needle is normally stored in the sliding cylindrical portion, which is safe.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a punching tool for a hollow container according to an embodiment of the present invention.

FIG. 2 is a front view showing a punching tool for a hollow container according to an embodiment of the present invention.

FIG. 3 is an enlarged cross-sectional view showing the periphery of the holder part in the punching tool for the hollow container according to the embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view showing the periphery of the hammer handle in the punching tool for the hollow container according to the embodiment of the present invention.

FIG. 5 is a front view showing two types of handle grips in a punching tool for a hollow container according to another embodiment of the present invention.

FIG. 6A is a partial side view showing a punching tool for a hollow container according to another embodiment of the present invention, and FIG. 6B is a punching tool for a hollow container according to another embodiment of the present invention. It is a bottom view which shows.

FIG. 7 is a sectional view showing the structure of a conventional tool for punching a spray can.

[Explanation of symbols]

1 Hollow Container Punching Tool 3 Punching Needle 5 Punching Shaft 7 Can Holder 9 Hammer Handle 11 Through Hole 13 Guide Pin 15 Female Threaded Part 17 Pin Hole 19 Base End Head 21 Holder Part 23 Sliding Cylindrical Part 25 Hole Part 27 Engagement Groove 35 Guide sleeve 37 Hammer weight part 39 Handle grip 41 Locking part 43 Collar part A Spray can

Claims (5)

[Claims] 1. A piercing shaft having a piercing needle at its tip, a hollow container holder axially slidably provided at the tip of the piercing shaft, and an axially slidable base end of the piercing shaft. A hollow container punching tool comprising a hammer handle that is freely provided. 2. A hollow container punching tool according to claim 1, wherein the hollow container holder actually holds the hollow container and forms a jetting path of a residue jetted from the hollow container; A sliding cylinder part that is slidably fitted onto the shaft, wherein the sliding cylinder part is formed with an engagement groove that engages with a guide pin provided to the perforated shaft. Characteristic hollow container punching tool. 3. The punching tool for a hollow container according to claim 2, wherein the hollow container holder always stores a punching needle in the sliding cylinder portion, and the punching needle is inserted from the sliding cylinder portion only during the punching operation. A punching tool for a hollow container, characterized in that a compression spring for urging it to project is provided. 4. A hollow container punching tool according to any one of claims 1 to 3, wherein the hammer handle is a guide sleeve slidably fitted onto a drilling shaft.
A punching tool for a hollow container, comprising: a hammer weight portion that strikes or presses a base end head portion of a punching shaft; and a handle grip that serves as a grip portion. 5. The punching tool for a hollow container according to any one of claims 1 to 4, wherein the length of the punching shaft is set to a length that allows an operator to work in a standing posture. Perforator for hollow containers.