JP2005007544A - Nose cap holder for nailing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nailing machine having a structure preventing a nose cap stored during non-use from dropping carelessly. <P>SOLUTION: This nailing machine holds the nose cap 4 made of an elastic body and mounted at the tip of an injection port 2 from which a nail is driven out during non-use. The nose cap 4 is provided with a separate holding hole from a mounting hole mounted at the tip of the injection port 2, and a holding bar for holding the nose cap 4 through the holding hole is provided on a handle arm 12 for fitting a magazine part 11 to a nailing machine body 3 above the magazine part 11. A guard 9 mounted on an opening and closing magazine cover 8 of the magazine part 11 is disposed opposite to the tip of the holding bar. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a nose cap holding device for holding a nose cap when a nose cap for protecting a material to be driven that is mounted on the tip of an injection port of a nailing machine is not used.
[0002]
[Prior art]
In general, the nailing machine is activated by a push lever that can be moved up and down from the injection port to the trigger switch and by operating the trigger switch. There are no push levers that can be nailed only by operating the trigger switch. If the trigger lever is pulled when the push lever is in contact with the material to be driven, it will be nailed. There is a push lever that only pushes forward and is not nailed, and there is also a push lever whose tip end also forms an injection port.
[0003]
When nailing with these nailers, the tip of the injection port is pressed against the material to be driven, and the nailing operation is performed. At this time, the surface of the material to be driven may be damaged by the tip of the injection port. There is no problem when nailing a base material or the like with post-processing, but there is a problem with nailing operations such as a decorative board without post-processing. In such a case, it is common to perform a nailing operation by attaching a nose cap formed of an elastic body to the tip of the injection port to protect the surface of the material to be driven.
[0004]
Conventionally, for example, Patent Literature 1 and Patent Literature 2 propose a nailing machine provided with a storage / holding portion for storing / holding a nose cap in order to prevent loss when the nose cap is not used. These are configured such that a housing convex portion or a housing concave portion is provided in a housing or magazine of a nailing machine, and a nose cap is fitted and stored and held while being elastically deformed.
[Patent Document 1] Japanese Utility Model Publication No. 62-42977 [Patent Document 2] Japanese Patent Application Laid-Open No. 2000-52274 [Problems to be Solved by the Invention]
According to the above-mentioned nose cap storage structure, the storage structure that fits into the storage convex part also uses the mounting hole for mounting at the tip of the injection port for storage. There is a problem that the stored nose cap is likely to drop off from the storage convex portion due to vibration during nailing, contact with other parts, or the like. In addition, there is a problem that the outer surface of the nose cap easily falls off from the storage recess due to deformation, scratches, etc. due to contact with the material to be driven or contact with other parts even if the structure is fitted in the storage recess. there were. In other words, each storage method uses a mounting hole or outer surface that is used when the nose cap is mounted on the tip of the injection port, so the dimensional relationship with the storage part changes due to deformation or damage when used to some extent. However, there is a problem that it is easy to drop out of the storage section and it is difficult to remove.
[0005]
An object of the present invention is to provide a nose cap holding device that eliminates the problems of these conventional nose cap housing structures and prevents the nose cap held when not in use from being accidentally dropped or easily removed. .
[0006]
[Means for Solving the Problems]
The object is achieved by providing a nose cap with a holding hole different from the mounting hole attached to the tip of the injection port and holding the nose cap through the holding hole.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
1 to 6 show an embodiment of the present invention. As is well known, the nailing machine includes a body 10 that houses a piston 1 and the like that moves up and down by air pressure to drive a nail, an injection port 5 that drives a nail 19, and a magazine unit 11 that houses and advances the nail 19. The body 10 and the magazine portion 11 are connected by a magazine portion 11 and a handle arm 12 at the rear end of the handle 20 of the body 10. In order to load the nail 19 into the magazine portion 11, the lock lever 13 at the rear end of the magazine portion 11 is removed, the magazine cover 8 is opened rearward, and the nail 19 is loaded from the A side (see FIG. 3) on the side of the magazine. Thereafter, the magazine cover 8 located behind the magazine portion 11 is returned to the front, so that the magazine cover 8 is closed and is not opened by the lock lever 13. A push lever 14 that also serves as the injection port 5 is attached to the tip of the nailing machine body 3. When the push lever 14 is brought into contact with the material to be driven and the trigger switch 15 is pulled, the nail 19 is driven. If the trigger switch 15 is pulled without bringing the push lever 14 into contact with the material to be driven, the push lever 14 only protrudes forward (downward in the figure) and does not drive the nail 19. Further, an attachment recess 16 is provided at the tip of the push lever 14 so that the elastic nose cap 4 can be detachably attached. The nose cap 4 has a bottomed square cylindrical shape with an opening at the lower center, and is provided with an inner periphery, that is, a mounting hole 7 to be fitted to the outer periphery of the push lever 14 tip. Further, the protrusion 16 (not shown) on the inner periphery of the nose cap 4 is engaged with the recess 16 at the tip of the push lever 14 so that the nose cap 4 is not easily detached from the tip of the push lever 14. The nose cap 4 is provided with a holding hole 6 so as to penetrate through the left and right walls of the rectangular tube shape in a direction orthogonal to the mounting hole 7 to the push lever 14.
[0008]
The handle arm 12 is provided with three holding bars 17 for holding the nose cap 4 at a position adjacent to the magazine portion 11 below the body handle 12, and the holding direction is determined when the nail is loaded, that is, when the nail is loaded. The magazine cover 8 is opened and closed. The end width B of the holding bar 17 is slightly larger than the width D of the holding hole 6 of the nose cap 4, and the length E of the holding bar 17 extends through the holding hole 6 of the nose cap 4. It is longer than the length F. A guard 9 is integrally formed on the magazine cover 8 at a position so as to cover the holding portion of the nose cap 4 when the magazine cover 8 is closed after the nail is loaded.
[0009]
In the above structure, in a nailing operation where it is necessary to prevent the surface from being scratched like a decorative board, the magazine cover 8 is opened, the nose cap 4 held on the holding bar 17 of the handle arm 12 is extracted, and the shooting is performed. It is attached to the tip of the outlet portion 5 to perform a nailing operation. Further, in the nail operation where there is no problem even if the base material is damaged, the nose cap 4 is removed from the push lever 14, the magazine cover 8 is opened and held in the holding bar 17, the magazine cover 8 is closed, and a series of holding operations. Finish.
[0010]
Since the holding bar 17 is formed integrally with the handle arm 12, it is economical. Since a plurality of holding bars 17 are provided, it is possible to hold various types of nose caps 4 according to the shape of the material to be driven. The nose cap 4 can be held. Further, since the arrangement position is between the magazine portion 11 below the body handle 12 and is adjacent to the magazine portion 11, it does not interfere with the nailing operation, and there is very little contact with other parts. Further, it is difficult to damage the outer periphery of the nose cap 4 or to apply a force in the falling direction. The nose cap 4 is held and taken out in the same direction as the magazine cover 8 in the direction in which the nail 19 is loaded, so that the operability is good.
[0011]
In order to hold the nose cap 4 on the holding bar 17, the holding hole 6 is slightly smaller than the wide portion 18 of the holding bar 17, so the holding hole 6 is slightly deformed and penetrates the two holding holes 6. Let the skewered state be. The mounting holes 7 that are damaged or deformed in actual use are not used, and two wide portions 18 larger than the holding holes 6 are passed through, so that they cannot be easily removed from the holding bar 17. In addition, since the two holding holes 6 are skewered, the load in the pulling direction is only in one direction of the shape of the holding bar 17 and does not fall off even if other parts come into contact. Furthermore, even if the holding hole 6 is damaged or deformed and the dimensional relationship with the holding bar 17 is changed or it is easy to come off due to contact with other parts, the guard 9 formed on the magazine cover 8 is used to Since it covers the detachable side, there is no worry about falling off. When the magazine cover 8 forming the guard 9 is opened, the nailing is performed when the nail is loaded or the nose cap 4 is attached / detached, and the nailing operation is not performed. The guard 9 does not need to cover the entire nose cap 4 that is being held, but may cover a part of the nose cap 4. Further, it may not be integral with the magazine cover 8, and may be formed separately and attached with screws or the like.
[0012]
【The invention's effect】
According to the present invention, since the holding hole that is held when not in use is provided separately from the mounting hole that is attached to the tip of the injection port, the mounting hole that is damaged or deformed in actual use is used. Because it does not fall out from the holding bar. In addition, since a guard that prevents the nose cap from falling off is formed on the magazine cover that opens and closes when the nail is loaded, it is possible to reliably prevent inadvertent dropping due to vibration during nailing and contact with other parts.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a nose cap holding device of the present invention.
FIG. 2 is a rear view of FIG.
FIG. 3 is an explanatory perspective view showing a nail loading method in the nailing machine of the present invention.
FIG. 4 is a perspective view showing a relationship between an injection port portion of the nailing machine of the present invention and a nose cap.
FIG. 5 is a perspective view showing a relationship between a nose cap holding portion and a nose cap of the nailing machine of the present invention.
6 is an enlarged perspective view showing the storage bar and the nose cap of FIG. 5. FIG.
[Explanation of symbols]
1 is a piston, 2 is an injection port, 3 is a nailing machine body, 4 is a nose cap, 5 is an injection port, 6 is a holding hole, 7 is a mounting hole, 8 is a magazine cover, 9 is a guard, 17 is a holding bar .

Claims (3)

In a nailing machine that holds a nose cap made of an elastic body that is attached to the tip of an injection port from which a nail is driven,
A nose cap holding device for a nailing machine, wherein a holding hole different from a mounting hole to be attached to the tip of an injection port is provided in a nose cap, and the nose cap is held through the holding hole. At least one holding bar extending in a direction perpendicular to the direction of the nail in the magazine is provided in a handle arm for mounting a magazine for storing and advancing a nail to be driven to the nailing machine body, and a holding hole of the nose cap is formed. 2. The nose cap holding device for a nailing machine according to claim 1, wherein the nose cap is held by being inserted into a holding bar. 3. A nose cap holding device for a nailing machine according to claim 2, wherein a guard facing the tip of the holding bar is provided above the opening / closing cover of the magazine so as to prevent the nose cap from being accidentally dropped off. apparatus.

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