JPH01152003A - Driving-depth regulator for nail driver - Google Patents

Abstract

PURPOSE: To simply regulate a depth of nailing by coupling a nose end member so as to axially slide to a nose body but not to rotate, and mounting a nut member at an end side of the body so as not to slide but to rotate. CONSTITUTION: A noise end member 6 is coupled to a nose body 5 so as to axially slide but not to rotate, a nut member 15 is mounted at an end side of the body 5 so as not to slide but to rotate, and threads 18 to be engaged with female threads of the nut member are formed on an outer periphery of its rear end side. Hence, a nose end member 6 is axially slid merely by rotating the member 15, and a protruding length of the nose can be simply regulated by projecting or retracting the nose end member to or from the end side. That is, a depth of nailing of a nail 4 is regulated by rotating the member 15 by a finger. And, since the member 6 is threadedly coupled to the body 5, it can be replaced with the other nose end member. Accordingly, a direction of the member 6 can be regulated corresponding to a nailing position of the nail 4.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a nailing machine with a driving depth adjusting device, and in particular to a nailing machine that guides a reciprocating blade and drives a nail fed into the tip portion with the blade. The present invention relates to a driving depth adjusting device.

Conventional technology Many types of automatic nailing machines have been developed, one of which is to feed nails one by one from an automatic nail feeding device to the tip of the nose, and then use the reciprocating motion of the blade to drive the nails. There are types that are driven into objects such as walls. This nail gun is convenient because it can automatically drive a large number of nails into an object.

Problems to be Solved by the Invention However, in the above nailing machine, it is necessary to adjust the driving depth of the blade into an object such as a wall. In general, the driving depth is determined by how much the nose protrudes from the tip of the nailer body, but to adjust this depth, after protruding the nose a predetermined amount, use a tool such as a spanner. A troublesome procedure was required to lock the nose to the nailer body.

And in case of readjustment, after unlocking it,
There was the hassle of repeating the same thing over and over again.

Therefore, it is desirable to be able to easily adjust the driving depth without the need for tools or the like.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a nailing machine equipped with a driving depth adjustment device that allows easy adjustment of the driving depth when driving a nail into a wall or the like.

Means for Solving the Problems In order to achieve the above object, the nailing machine according to the present invention has a nose that guides a reciprocating blade and drives the nail fed into the tip into an object by the blade. In the present invention, in order to adjust the driving depth of the nailer, the nose includes a nose body fixed to the nailer body, and a nose tip movably attached to the tip side of the nose body. The nose tip member is connected to the nose body so that it slides in the axial direction but does not rotate, and a nut member that does not slide but can rotate is attached to the tip side of the nose body, and the nose tip member A thread is formed on the outer periphery of the rear end side to be screwed into the nut member.

Effect: According to the structure of the nose of the nailing machine according to the present invention, the nose tip member slides in the axial direction by rotation of the nut of the nose body, and the protrusion length of the nose tip member toward the tip side can be easily adjusted. Therefore, the driving depth can be easily adjusted without the need for tools such as spanners.

EXAMPLE Hereinafter, the configuration of a nose portion of an automatic nailing machine according to the present invention, which is equipped with a driving depth adjusting device, will be explained with reference to the drawings.

1 to 3, the nose l of the nailing machine according to the present invention is configured to guide a reciprocating blade 2, and is also configured to guide a reciprocating blade 2 through a pipe 3 from an automatic feeding device (not shown). The nail 4 at the tip is driven into an object such as a wall by the reciprocating movement of the blade 2 (to be more precise, the movement to the left in FIG. 2).

The nose 1 includes a nose body 5 fixed to a nailer body (not shown) and a nose tip member 6 attached to the tip side of the nose body 5. Nose tip member 6
As shown in FIGS. 1 and 3, there is a pair of chuck members 7 on the tip side of the nail 7 for holding the shaft of the nail 4 that has been fed.
7 is provided. When the blade 2 moves to the left so as to drive a nail 4, the chuck member 7 opens with the pin or screw 8 as a pivot point, as shown by the dashed line in FIG. When the blade 2 is in the retracted position (the position shown in FIG. 2), an O-ring 9 made of an elastic material such as rubber is provided so that both chuck members 7 close and hold the shaft of the nail 4. There is.

In the present invention, the portion of the nose 1 consisting of the nose body 5 and the nose tip member 6 constitutes a driving depth adjusting device. Therefore, the nose tip member 6 is connected to the nose body 5 so that it slides in the axial direction but does not rotate. That is, the rear end side of the nose tip member 6 has a cavity 11 having an inner diameter large enough to receive the tip side of the nose body 5.
is formed, and a keyway 12 extending in the axial direction is formed in the cavity 11. On the other hand, a key 13 that fits into the key groove 12 is provided on the outer surface of the tip side of the nose body 5, and connects the nose body 5 and the nose tip member 6 with the key.

This connection does not need to be a key connection as long as it is a connection that slides in the axial direction but does not rotate. That is, the combination of a longitudinally extending recess and a protrusion provides a connection that slides in the axial direction but does not rotate. Further, when the key 13 is used, the key 13 may be fixed to the nose body 5, or may be removably disposed in a key groove formed in the nose body 5. Furthermore, the key 13 may be a square bar,
It may be a round bar.

Further, the number of key grooves 12 formed in the cavity 11 of the nose tip member 6 may be one, but two or three or more may be provided in the inner circumferential direction. By providing a plurality of keyways 12 in this way, the position of the nose tip member 6 in the rotational direction with respect to the nose body 5 can be adjusted.

That is, by removing the nose tip member 6 from the nose body 5, changing the direction of rotation of the nose tip member 6, and then attaching it, the nose tip member 6 can be fixed in the changed direction.

In order to attach the nose tip member 6 to the nose body 5, a nut member 15 that does not slide in the axial direction but can rotate is attached to the tip side of the nose body 5. This nut member 15 is housed in a cylindrical casing 16 fixed to the outside of the nose body 5. As shown in FIG. It is being done. Note that the nut member 15
It is preferable that the outer surface of the nut member 15 is processed with twill or low left so that the nut member 15 can be rotated.

Furthermore, the casing 16 may have any shape as long as it rotatably accommodates the nut member 15 therein.
As long as 5 is held so as not to move in the axial direction, it is not limited to the one that fits into the nose body 6 as shown in the figure, but may be fixed to the nose body 6 by screws or the like.

A male thread 18 is formed on the outer surface of the rear end side of the nose tip member 6 for screwing into the female thread of the nut member 15 to attach the nose tip member 6 to the nose body 5.

Nut member 15 and external thread 1 on the rear end side of the nose tip member
8, the nose tip member 6 is attached to the nose body 5. That is, by rotating the nut member 15 with a finger or the like, the male thread 18 on the outer surface of the nose tip member 6 is screwed into the female thread of the nut member 15, and the nose tip member 6 is attached to the nose body 5, and this screwed state is in,
By rotating the nut member 15, the protruding length of the nose tip member 6 relative to the nose body 5 can be changed.

As described above, by changing the protruding length of the nose tip member 6, the driving depth of the nail 4 can be adjusted. That is,
The length of extension of the blade 2 is constant relative to the tool body and thus to the nose body 5 fixed to the tool body. Therefore,
When the nose tip member 6 is fixed so as to protrude by a certain length from the nose body 5, the tip of the blade 2 can extend the head of the nail 40 housed in the nose tip member 6 by the protruding length of the blade 2. Type in. On the other hand, if the position of the nose tip member 6 is made to protrude forward from the nose body 5,
The protruding length of the blade 2 becomes relatively short, and the driving depth of the nail 4 becomes shallow. It will be understood from this that the driving depth of the nail 40 can be adjusted by changing the protrusion length of the nose tip member 6 with respect to the nose body 5 by rotating the nut member 150 times.

In order to prevent the nut member 15 from rotating due to vibrations during use of the nailing machine, recesses or grooves are provided at regular intervals in a circular arrangement on the rear end side of the nut member 15, and the recesses or grooves are opposed to the recesses or grooves. A blind hole 20 extending in the axial direction is formed in the side surface of the nose body 5, and a spring 21 and a ball 22 are arranged in this hole 20. That is, the nut member 1
A rotation prevention mechanism is constituted by the recess or groove on the rear end surface of the nose body 5 and the spring 21 and ball 22 on the nose body 5 side. The ball 22 fits into a recess or groove on the rear end surface of the nut member, and prevents the nut member from rotating 150 degrees even when the nut member is vibrated during use of a nail gun.

This anti-rotation mechanism also functions as a click mechanism that serves as a guide for the protrusion length of the nose tip member 6 relative to the rotation angle of the nut member 15. That is, the nut member 1
When the ball 5 is rotated, it can be confirmed each time the ball 22 is fitted into a recess or groove, and the number of fittings can be used as a guide for determining the amount of protrusion, that is, the driving depth. Of course, in order to know the protrusion length, a line or the like indicating the rotation angle of the nut member 15 may be carved on the casing 16. Furthermore, an indication indicating the driving depth may be formed directly on the male thread 180 portion of the nose tip member 6.

Further, as described above, since the nose body 5 and the nose tip member 6 are screwed together by the nut member 16 attached to the nose body 5, there is some play in the attachment. Since this play is undesirable for the nail driving operation of the nail gun, an O-ring 23 made of rubber or the like is attached to the tip of the nose body 5 at the portion inserted into the nose tip member 6. The outer diameter of this O-ring 23 is formed to be slightly larger than the inner diameter of the rear end of the nose tip member 6, so that the nose body 5 and the nose tip member 6 are frictionally engaged and connected without play. Although this O-ring 23 eliminates the play, it must not interfere with the connection between the nose body 5 and the nose tip member 6, so it is preferable that it has elasticity. Furthermore, this O-ring 23 is
Although it does not interfere with the connection between the nose body 5 and the nose tip member 6, if it eliminates the play in the connection between the nose body 5 and the nose tip member 6, it may be moved radially outward to the extent that the play in the connection is eliminated. Any elastic body can be used as long as it is a protruding elastic body.

FIG. 4 shows a second embodiment. In this embodiment as well, the key is connected in order to connect the nose tip member 6 to the nose body 5 so that it slides in the axial direction but does not rotate. However, when connecting the keys, the key groove 24 on the rear end side of the tip member 6 penetrates the outer surface and is formed as a slit. The tip of a pin or screw 26 screwed into the casing 25 is fitted into the keyway 24, and the keyway allows the nose tip member 6 to slide in the axial direction relative to the nose body 5 but not rotate. It is connected. Furthermore, a casing 28 that holds a key connection screw 26 and rotatably accommodates a nut member 27 is fixed to the tip side of the nose body 5 by a threaded portion 29. The outer surface of the nut member 27 is partially exposed, as in the first embodiment, so that the nut member 27 can be rotated. The driving depth of the second embodiment can be adjusted by simply rotating the nut member 27 with a finger or the like, as in the first embodiment.

Effects of the Invention According to the driving depth adjusting device of the present invention, the nose consists of a nose body fixed to the nailer body and a nose tip member movably attached to the tip side of the nose body. is connected to the nose body so that it slides in the axial direction but does not rotate, and a nut member that does not slide but can rotate is attached to the tip side of the nose body,
Since a thread is formed on the outer periphery of the rear end of the nose tip member to engage with the female thread of the nut member, the nose tip member slides in the axial direction simply by rotating the nut member, and the tip of the nose tip member slides in the axial direction. The protruding length of the nose can be easily adjusted by protruding or retracting to the side. That is, the driving depth of the nail can be adjusted by rotating the nut member with a finger, an extremely simple operation that does not require any tools.

Further, since the nose tip member is screwed to the nose body, the nose tip member can be removed from the nose body and replaced with another nose tip member. Furthermore, since it can be easily removed, the rotational direction of the nose tip member relative to the nose body can be easily changed, thereby adjusting the orientation of the nose tip member in accordance with the nail driving location. can.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a nose having a driving depth adjusting device for a nailing machine according to the present invention, and FIG. 2 is a sectional view of a nose having a driving depth adjusting device for a nailing machine according to the present invention. Figure 3 shows
Half-sectional view of the nose seen from the direction of arrow ■ in Figure 2, No. 4
The figure is a partial sectional view of the nose of another embodiment of the driving depth adjusting device. Explanation of symbols 1 Nose 2...-Blade 3 Vibrator 4- Nail' 5 Nose body 6- Nose tip member 7 Chuck 9 0-ring 11 Hollow 12-Keyway 13 Key
15 Nut member 16 Casing 1
7 Window 18 Male thread 20. Blind hole 21 Spring 22 Ball 23 0 ring 24
Keyway 25, casing 26, key screw 27, nut member Fig. 1

Claims (5)

[Claims] (1) A driving depth adjustment device for a nailer having a nose that guides a reciprocating blade and drives the nail fed into the tip into an object with the blade,
The nose consists of a nose body fixed to the nailer body and a nose tip member attached to the tip side of the nose body, and the nose tip member slides in the axial direction with respect to the nose body but does not rotate. A nut member that does not slide but can rotate is attached to the tip side of the nose body, and a screw that is screwed into the nut member is formed on the outer periphery of the rear end side of the nose tip member. Nailer driving depth adjustment device. (2) The driving depth adjusting device according to claim 1, wherein the nose tip member is connected to the nose body by a projection and a recess that extend in the longitudinal direction. (3) The nose rear end side of the nose tip member is formed into a cavity that receives the tip of the nose body, and a plurality of protrusions or recesses are formed in this cavity in the inner circumferential direction. The driving depth adjusting device according to item 2. (4) The nose tip member is formed in a cavity that receives the tip of the nose body, and the tip of the nose body has an elastic body that protrudes radially outward from the inner diameter of the cavity to an extent that eliminates connection play. Claim 1 to which is attached
The driving depth adjustment device described in . (5) The side surface of the nut member and the side surface of the nose body opposing the nut member are provided with a rotation prevention mechanism to prevent rotation due to vibrations during use of the nailing machine. The driving depth adjustment device described in .