JP2787731B2 - Nail protruding nailing machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nail projecting type nailing machine which is configured to partially project from a tip of a nail and a nose.

2. Description of the Related Art A nail projecting type nailing machine configured to drive a nail while partially projecting from a tip of a nose is disclosed in, for example, Japanese Utility Model Laid-Open No. 1-71076. The nail protruding nailer includes a blade that reciprocates in a nose nail passage extending from the nailer body, a striking piston that drives the blade, and a slidable housing of the striking piston. In addition to an ordinary nailing machine consisting of a main cylinder provided in the nose and a main valve for sending compressed air to the back side of the piston of the main cylinder and releasing the compressed air, the nose is loaded in the nail passage. Means are provided for pushing the nail out partly from the tip of the nose. Therefore, a part of the nail extends to the tip of the nose of the nail, and by using this, there is an advantage that the positioning of the nail with respect to the object to be driven is ensured. Further, even when nails are loaded one by one into the nail passage of the nose, there is no accident of falling of the nail in the passage, so that troubles such as jams are eliminated.

Problems to be Solved by the Invention However, the extruding means is described in Japanese Patent Publication No.
As can be seen in FIGS. 8-8, a piston extending substantially parallel to the body, outside the body of the nailing machine including the main cylinder.
It is constituted by a push rod driven by a cylinder device, the push rod having a long part parallel to the blade and a key-like tip for entering the nail passage of the nose, and this tip being the nail passage. It is a complicated structure that can move forward and backward. If the leading end portion is not sufficiently retracted from the nose, the blade strikes that portion, possibly damaging the nose portion of the nailing machine.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a simple means for extruding a nail loaded in a nail passage of a nose so as to partially protrude from the tip of the nose, and to secure the nose without damage.

According to the present invention, there is provided a nail protruding nailer having a means for pushing out a nail loaded in a nail passage of a nose so as to partially protrude from a tip of the nose. Wherein the blade is formed hollow and the striking piston is also formed continuously hollow, and an elongated rod is slidably disposed in the hollow portion, and the rod is separated from another piston and cylinder means. Driven to reciprocate by
There is provided a nailing machine which pushes out the nail loaded in the nail passage of the nose so as to partially protrude from the tip of the nose. Therefore, since the pushing rod reciprocates in the blade, a structure for retracting the pushing rod as in the above-mentioned conventional nailing machine is not required, and since there is no collision with the blade, the nose No damage to parts.

Further, according to the present invention, there is provided a nail projecting nailing machine having means for pushing out a nail loaded in a nail passage of a nose so as to partially protrude from a tip of the nose. An elongated rod extending from the back side of the piston to the end of the blade is provided, the rod being driven by piston and cylinder means, the rod and the blade forming pushing means, and loaded into the nail passage of the nose. A nailing machine is provided, in which a set nail is extruded by a length that partially protrudes from a nose tip. In the case of this nailer,
Since the blade performs the pushing function as it is, there is no need for a configuration to retract the push rod as in a conventional nailing machine, and the blade itself pushes the nail, so there is no collision with the blade and the nose part No damage.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a partially sectional front view of a nail-projecting type nailer 1 according to the present invention. A nail protruding nailer 1 includes a handle 2 and a main body 3 integrally formed therewith.
A nose 4 extending from the main body 3, and a magazine 5 capable of storing a large amount of nails for feeding nails to the nose 4, and the nails are sent from the magazine 5 to a nail passage of the nose 4 by a nail feeding device 6. The nailing machine 1 is supplied with pressurized air from a nipple 7 attached to the handle 2, and operates to drive a nail by operating a trigger 8.

Therefore, the main body 3 includes a blade 10 that reciprocates in the nail passage 9 of the nose 4, a striking piston 11 that drives the blade, a main cylinder 12 that slidably houses the striking piston, and a main cylinder 12 that slidably accommodates the striking piston. And a main valve 13 for sending compressed air to the piston rear side and releasing the compressed air. Now, when the trigger 8 is pulled, the main valve 13 is operated, and the striking piston 11 at the upper position of the cylinder 12 (see the right half piston 11 with respect to the axis of the blade 10 in FIG. 1). ) Supply compressed air to the back side. This allows the impact piston
11 is given a force of rapidly moving downward in FIG. 1 and, as it moves downward, strikes the blade 10 downward (in FIG. 1, the left half of the piston 11 is Please see). With this downward blow,
The nail in the nail passage 9 is hit downward, and the nail is driven into a driving target such as a plate. After the driving, the main valve 13 operates to stop the supply of the pressurized air to the back of the piston.
It returns to the position of 11, and the blade 10 also returns. At the time of this return, the next nail is fed into the nail passage 9 of the nose 4 by the feeding device 5.

In the present invention, there is provided a means for pushing out the nail loaded in the nail passage 9 of the nose 4 so as to partially protrude from the tip of the nose. This means, like the pushing means described in Japanese Utility Model Application Laid-Open No. 1-71076, has the advantage that the positioning of the nail on the object to be driven is ensured and the accident of falling of the nail in the passage is eliminated. Which has
Its configuration is completely different from that described in the above publication. Hereinafter, the pushing means will be described.

In the embodiment of FIG. 1, the blade 10 is formed hollow,
The striking piston 11 is also formed to be continuous with the blade 10 so as to be hollow, and the main valve 13 provided above the striking piston 11 is also formed so that the shaft core portion is formed to be continuous with the hollow portion of the striking piston 11 and the blade 10. I have. An elongated rod 15 is slidably disposed in these hollow portions.
This rod 15 is connected to a piston 17 housed in a cylinder 16 provided above the main valve 13,
The piston 16 is driven to reciprocate up and down by a piston 17 that reciprocates up and down in the inside 16. For this reason, the cylinder
A valve 18 for selectively supplying compressed air to the rear and front surfaces of the piston 17 is provided above the piston 16. The valve 18 supplies compressed air to the back side of the piston 17 to lower the rod-shaped body, or lowers the piston 17 by supplying compressed air to the front side of the piston 17, that is, the side on which the rod-shaped body 15 extends.
It has the function of raising 17 and so on. The piston 17
May be urged to either the upper or lower side by a coil spring, in which case, pressure air exceeding the spring urging force is supplied to the piston surface by the valve 18 to cause the piston to move to the other side. May be moved to the side.

The valve 18 is preferably controlled to operate in conjunction with the trigger 8. For example, when the trigger 8 is not actuated, the piston 17 is lowered and the bar 15 is lowered,
When the trigger 8 is operated, the valve 18 may be linked with the operation of the trigger 8 so that the piston 17 is raised and the rod 15 is lowered. This is shown in FIG. That is, the position of the piston 11 on the right side with respect to the axis of the blade 10 in FIG. 1 indicates that the trigger 8 is in the inoperative state and the blade 10 is also retracted in the inoperative state. In this state, the piston 17 is lowered and the rod 15
Has been lowered. On the other hand, in FIG.
The position of the piston 11 on the left side with respect to the axis of
Is activated and the main valve 13
Is operated and pushed down to the lowermost side, the blade 10 also hits the nail and shows an operating state of driving into the object to be driven,
In this state, even when the piston 17 is raised, the rod-shaped body 15 is also raised and is in a non-operating state.

Of course, the above-described interlocking control of the rod 15 and the trigger 8 is not limited. Basically, before the nail is driven into the object to be driven, ie before the trigger 8 is actuated, the piston 17
It is sufficient that the rod 15 is also lowered. As described above, the rod-shaped body 15 is attached to the striking piston 11 of the main valve 13.
And when lowered down through the hollow part of the blade 10,
Nail passage 9 of nose 4 from feeder 6 from magazine 5
Is lowered downward through the nail passage 9. This nail is a chuck member provided at the tip of the nose.
The nail is pushed down by the tip of the rod 15 until it is stopped by being gripped by the nail 20, whereby the pushed nail tip extends from the chuck member 20. Therefore, the rod-like body 15 serves as a means for pushing out the nail loaded in the nail passage of the nose so as to partially protrude from the tip of the nose.

FIG. 2 discloses another nailing machine according to the present invention. The basic configuration of this nailing machine is the same as that shown in FIG. 1 except that the nail loaded in the nail passage of the nose is pushed out so as to partially protrude from the tip of the nose. The same members and portions as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. In the same manner as in the example of FIG. 1, a non-operating state in which the trigger 8 is not pulled is shown on the right side of the axis of the blade extending vertically in the drawing, and the left side of the axis of the blade is shown on the right side. , The trigger 8 is pulled and the nail is driven into the object by the blade.

In the nailing machine of FIG. 2, the upper end of the blade 10 is closed and not hollow. In the example shown in the drawing, the portion other than the upper end portion is formed hollow, but basically, it may be a solid bar like a normal blade. As shown in the drawing, if the hollow body is formed, the mass is reduced, and the force of hitting when hitting the nail can be reduced. In this example, the pushing means penetrates the main valve 13 so that the nail loaded in the nail passage 9 of the nose 4 partially protrudes from the tip of the nose,
It comprises an elongated rod 22 extending from the rear side of the impact piston 11 to the closed upper end of the blade. The rod 22 is driven by a cylinder 16 and a piston 17 above the main valve 13, and the piston 17 is driven by a valve 18, similarly to the rod 15 in FIG. The lower end of the rod 22 extends to the upper end of the blade 10, as described above, which is pushed downward by the rod 22, and the lower blade or tip of the blade 10 is in the nail passage 9. The nail is pushed out until it is gripped by the chuck member 20 at the tip of the nose 4, and the tip of the nail extends from the nose by a predetermined length.

In FIG. 2, the position of the piston 11 on the right side of the axis of the blade 10 indicates that the trigger 8 is in a non-operating state and the blade 10 is at an intermediate position where the blade 10 is not operating. That is, in the non-operation state of this example, the piston 17 is lowered,
When the bar 22 is lowered, the blade 10 is lowered with the piston 11 and is placed in a non-operating intermediate position. The position of the piston 11 on the left side of the axis of the blade 10 in FIG.
In this state, the trigger 8 is pulled, the main valve 13 is operated, the blade 10 hits the nail, and the blade 10 is driven into the object to be driven. In this state, the piston 17 is raised. The rod 22 is also raised.

As in the example shown in FIG. 1, the interlocking control between the rod 22 and the trigger 8 is not limited, and the piston 17 is moved before the nail is driven into the object to be driven (before the trigger 8 is actuated). It is only necessary that the rod 22 be lowered and the blade 10 pushes the nail. In the example of FIG. 2, the rod 22 and the blade 10
This is a means for pushing out the nail loaded in the nail passage of the nose so as to partially protrude from the tip of the nose.

According to the present invention, the blade is formed hollow, the striking piston is also formed continuously hollow, and an elongated rod slidably disposed in the hollow portion is separate from the main piston / cylinder means. The piston is driven to reciprocate by the piston / cylinder means, and the rod pushes out the nail loaded in the nose nail passage so as to partially protrude from the nose tip, so that collision with the blade is completely eliminated, Unlike a conventional nailing machine, there is no need for a structure for retracting the push rod from the passage of the blade, that is, the nail passage, and there is no collision with the blade, so that the nose portion is not damaged.

According to the present invention, an elongated rod penetrating the main valve and extending from the back side of the striking piston to the end of the blade is driven by a dedicated piston / cylinder means and loaded into the nail passage of the nose. Since the nail is pushed out by the rod and the blade by a length that partially protrudes from the tip of the nose, the collision with the blade is also eliminated in this case, and the pushing rod can be retracted like a conventional nailing machine. And no nose portion is damaged.

[Brief description of the drawings]

FIG. 1 is a partially broken front view of a nail-projecting nailer according to the present invention, and FIG. 2 is a partially broken nail-projecting nailer of the present invention having a configuration different from that of FIG. It is a front view. DESCRIPTION OF SYMBOLS 1... Nail protruding type nailing machine 2... Handle 3... Nailing machine body 4... Nose 5... Magazine 6... Nail feeding device 7. 10 ... Blade, 11 ... Striking piston 12 ... Main cylinder 13 ... Main valve 14 ... Return chamber 15 ... Elongated rod-like body, 16 ... Cylinder 17 ... Piston, 18 ... Valve 20 ... Chuck member , 22 …… Elongated rod

Claims (2)

(57) [Claims] A blade for reciprocating in a nail passage of a nose extending from the nailer body, a striking piston for driving the blade, and a striking piston slidably housed in the nailer body. A main cylinder, a main valve for sending compressed air to the piston rear side of the main cylinder and releasing the compressed air, and a means for pushing out a nail loaded in a nail passage of the nose so as to partially protrude from the tip of the nose. Wherein the blade is formed hollow and the hitting piston is also formed continuously hollow, and an elongated rod is slidably disposed in the hollow portion thereof. The body is driven to reciprocate by another piston-cylinder means, and this bar projects the nail loaded in the nail passage of the nose partially from the nose tip. A nailing machine, characterized in that it is the pushing means for pushing out. A blade for reciprocating in a nail passage of a nose extending from the nailer body, a striking piston for driving the blade, and a striking piston slidably housed in the nailer body. A main cylinder, a main valve for sending pressurized air to the back side of the piston of the main cylinder and releasing the pressurized air, and a means for pushing out a nail loaded in a nose nail passage so as to partially protrude from the nose tip end. An elongated rod extending through the main valve from the rear side of the striking piston to the end of the blade, wherein the rod is separated by another piston-cylinder means. When driven, the pushing means is constituted by the rod and the blade, and the nail loaded in the nail passage of the nose partially protrudes from the tip of the nose. A nailing machine characterized in that it is extruded for the length of the nail.