JPH10286784A - Driving depth adjustment device for driving machine - Google Patents

Abstract

An object of the present invention is to simplify a configuration for preventing the rotation of an adjuster, improve the assemblability, and reduce the outer diameter of the adjuster in the driving depth of a driving machine. It is to provide an adjusting device. A PL piece (6) provided with a screw (6a) at an upper end, an annular groove (6b) at a lower end, and a recess (6c) near the center is provided by a nut (5) at the lower end of an upper push lever (3). The PL piece 6 is provided with a hole 1a at the lower end at one end and a female screw 1b at the other end face, and a hole 1a at the outer periphery of the PL piece 6 opposite to the annular groove 6b and the recess 6c.
a rotatable adjuster 1 provided with an annular groove 1d having a through-hole 1c penetrating through the hole 1a.
A C-shaped spring 2 having a convex portion 2a projecting from the through hole 1c into the hole 1a is attached to the annular groove 1d, and the female screw 1b of the adjuster 1 is screw-fitted to the upper end of the lower push lever 4. The screw 4a was provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a push lever which is divided into an upper push lever and a lower push lever.
The present invention relates to a driving depth adjusting device for a driving machine in which a driving depth changes when an adjuster provided between an upper push lever and a lower push lever rotates.

[0002]

2. Description of the Related Art The driving depth is adjusted by adjusting the distance between the lower end of the driver blade at the time of driving and the lower end of the push lever when pressed against the material to be driven, that is, the amount of protrusion of the driver blade from the push lever. It is performed by

FIG. 6 shows an example of a conventional driving depth adjusting device. As shown in the figure, the push lever is divided into an upper push lever 3 and a lower push lever 40,
The lower part of the upper push lever 3 has a screw 60a at the lower part.
A push lever piece (hereinafter referred to as a PL piece) 60 having a rod 60b on the upper side, which is located inside the spring 14 for always pressing the push levers 3 and 40 toward the injection port and positions the spring 14, is welded. And so on. Between the lower end of the upper push lever 3 and the upper end of the lower push lever 40, one end is screw-fitted with a male screw 60 a of the PL piece 60, and the other end is connected to the bolt 41 via the lower end of the lower push lever 40. It has a female screw 10a to be fitted, has two holes 10b substantially parallel to the female screw 10a on the end face on the side where the bolt 41 is screwed, and has a spring 10c and a spring 10c in the hole 10b.
An adjuster 10 having a configuration in which a steel ball 10d whose tip presses toward the injection port side is provided. At the upper end of the lower push lever 40, two holes 40a are provided for engaging a steel ball 10d pressed by the spring 10c incorporated into the adjuster 10 toward the injection port. The hole 40a and the hole 10b of the adjuster 10 are approximately 1
They are provided with an interval of 80 °.

When the adjuster 10 is rotated, the external thread 60a of the PL piece 60 provided at the lower end of the upper push lever 3 and the female thread 10a of the adjuster 10 are screw-fitted. The distance between the section and the upper surface of the adjuster 10 changes. That is, when the adjuster 10 is rotated, the adjuster 10 and the lower push lever 40 move up and down with respect to the lower end of the upper push lever 3, and the lower end of the lower push lever 40 when the push lever is pressed against the material to be driven. And the distance from the lower end of the driver blade (not shown) at the time of driving changes, and the depth at which the stopper (not shown) is driven into the driven material changes.

When the adjuster 10 rotates, the steel ball 10 inserted into the hole 10b of the adjuster 10 is rotated.
d and a hole 40 provided at the upper end of the lower push lever 40
The engagement with the a is released once, and then the adjuster 10 is engaged again when the adjuster 10 makes a half turn. Thus, steel ball 1
0d and the hole 40a, the adjuster 10
Was prevented from spinning due to vibration at the time of driving or the like.

[0006]

In the conventional driving depth adjusting device as described above, two holes 10b are provided in the end face of the adjuster 10 to prevent the adjuster 10 from rotating, and a spring 10c and a steel ball are provided in the holes 10b. 1d is incorporated, so that the assemblability is poor, the outer diameter of the adjuster 10 becomes large, and when driving into a narrow place, the adjuster 10 becomes an obstacle and it is difficult to confirm the injection port. There was a disadvantage. Further, since the PL piece 60 is configured to be attached to the lower end of the upper push lever 3 by welding, there is a disadvantage that the cost is increased. In addition, since there is no configuration that serves as a guide for adjusting the driving depth, the operation of rotating the adjuster 10 once to drive the stopper, and then rotating the adjuster 10 again to perform the adjustment is performed several times. In some cases, this operation has to be performed, and there is no configuration that indicates how the adjuster 10 should be rotated in any direction to change the depth at which the stopper is driven into the driven material. Poor operability,
If the direction in which the adjuster 10 is rotated is mistaken during the fine adjustment, there is a disadvantage that the adjustment of the driving depth becomes very troublesome.

An object of the present invention is to eliminate the above-mentioned disadvantages,
An object of the present invention is to provide an inexpensive driving depth adjusting device that can improve the assemblability and reduce the outer diameter of the adjuster, is easy to operate, and is inexpensive.

[0008]

An object of the present invention is to provide a motor having a screw portion at one end and a hole at the inside of the other end, and an outer portion at the other end, which is located between the upper push lever and the lower push lever. A rotatable adjuster provided with at least one annular groove provided with at least one through hole, and an upper push lever lower end or a lower push lever upper end provided with one end at the other end of the adjuster A PL piece housed in the provided hole and having an annular groove at a position facing the annular groove of the adjuster and having at least one or more concave portion at a position facing the annular groove of the adjuster; The C-shape which is mounted as described above and has a projection provided on a part thereof protrudes inward from the through hole of the annular groove, engages with the annular groove of the PL piece, and can engage with the recess provided on the PL piece. And a thin spring wire, is achieved by a structure in which a threaded portion of the screw portion and the screw fitting of the adjuster to lower the push lever upper part or the upper push lever lower end.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a driving depth adjusting device according to the present invention will be described below with reference to FIGS. FIG. 1 is an exploded view showing one embodiment of the driving depth adjusting device of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 shows a driving machine provided with the driving depth adjusting device of FIG. FIG. 4 is an enlarged view of a part B in FIG. 3, and FIG. 5 is an enlarged view of a main part of a side face in the direction C of the driving machine of FIG. The driving machine has an upper push lever 3 and a lower push lever 4 which can move in the axial direction of the driver blade 20 from the vicinity of the injection port 28 where the stopper 30 is ejected to the vicinity of the trigger 22 as shown in FIG. Is provided with a push lever that is divided into two sections. The driving operation is performed at the injection port 2
8, the lower end of the lower push lever 4 is pressed against the material to be driven 29, and the push lever 3, 4 is constantly pressed against the pressing force of the spring 14 pressing the push levers 3, 4 toward the injection port 28 side.
4 is lifted and the trigger 22 is pulled, whereby the driver blade 20 is rapidly lowered, and the stopper 30 previously loaded in the injection port 28 is hit and driven into the material 29 to be driven. With the trigger 22 pulled, the lower end of the lower push lever 4 is pressed against the material 29 to be driven.
Is driven, and the stopper 30 is driven into the material 29 to be driven.

An adjuster 1 is provided between the lower end of the upper push lever 3 and the upper end of the lower push lever 4, and the upper push lever 3 and the lower push lever 4 are connected via the adjuster 1 and other members. ing. The relationship among the upper push lever 3, the lower push lever 4, and the adjuster 1 will be described with reference to the exploded view of FIG. A hole 3a is provided at the lower end of the upper push lever 3,
The upper end of a PL piece 6 provided with a screw 6a at the upper end, an annular groove 6b at the lower end, a recess 6c near the center, and a spanner hook 6d is inserted into the hole 3a. The PL piece 6 is attached to the lower end of the upper push lever 3 by fitting the screw 6a. At the time of mounting the PL piece 6, if a spanner is hung on the spanner hook 6d, rotation of the PL piece 6 can be prevented and mounting can be performed easily.

At the lower end of the PL piece 6, a hole 1a having an inner diameter larger than the outer diameter of the PL piece 6 is provided at one end face, an internal thread 1b is provided at the other end face, and a through hole 1c penetrating through the hole 1a at the outer circumference.
Is accommodated in the hole 1a of the adjuster 1 provided with two annular grooves 1d having the following shape. The annular groove 1d of the adjuster 1 is provided at a position corresponding to the annular groove 6b and the concave portion 6c of the PL piece 6 housed in the hole 1a. A C-shaped C-shaped spring 2 molded from a thin spring wire and provided with convex portions 2a at both ends is fitted into the annular groove 1d of the adjuster 1, and the convex portion 2a of the C-shaped spring 2 has a through hole 1c of the annular groove 1d. The protrusion 2a of the C-type spring 2 which projects from the hole 1a into the lower annular groove 1c engages with the annular groove 6b of the PL piece 6 housed in the hole 1a, and
With the adjuster 1 and the upper annular groove 1c
The protrusion 2a of the C-shaped spring 2 fitted into the C-type spring 2 can be engaged with the recess 6c of the PL piece 6. With the above configuration, the adjuster 1 is rotatably attached to the PL piece 6. Note that two concave portions 6c of the PL piece 6 are provided at an interval of about 180 °, and each time the adjuster 1 is rotated half a turn, the concave portion 6c of the PL piece 6 and C
The convex portion 2a of the mold spring 2 is engaged to prevent the adjuster 1 from rotating due to vibration at the time of driving or the like.

A male screw 4 is provided at the upper end of the lower push lever 4.
a is provided, and is screw-engaged with the female screw 1b of the adjuster 1. When the adjuster 1 is rotated, the lower push lever 4 is moved within the female thread 1b of the adjuster 1 by the driver blade 20.
It moves up and down in the axial direction. That is, since the distance between the lower end of the upper push lever 3 and the upper end of the lower push lever 4 changes, the lower end of the lower push lever 4 is pressed when the lower end of the lower push lever 4 is pressed against the material 29 to be driven. The distance from the lower end of the driver blade 20 changes, and the depth at which the stopper 30 is driven into the driven material 29 changes. By rotating the adjuster 1 in this manner, the driving depth can be adjusted.

A nut 5 for attaching the PL piece 6 to the lower end of the lower push lever 3 is arranged so as to be located inside one end of a spring 14 which constantly presses the push levers 3 and 4 toward the injection port 28 side. The nut 5 has the effect of positioning the spring 14. Further, as shown in FIG.
2 is provided, and a graduation 27 is provided on a nose 32 for guiding the lower push lever 4 so that the lower push lever 4 can be moved up and down. When the adjuster 1 is rotated to minimize the distance between the lower end of the upper push lever 3 and the upper end of the lower push lever. That is, the groove 4a of the lower push lever 4 when the driving depth is maximized is positioned at the upper end line of the scale 27. Even if the groove 12 of the lower push lever 4 is always driven to the same line of the scale 27 and the driving is performed, if the material of the driven material 29 and the air pressure are different, the stopper 30 strikes the driven material 29. However, when the driving is performed under substantially the same conditions, the depth at which the stopper 30 is driven is substantially the same. If the adjuster 1 is rotated so that the groove 12 of the push lever 4 is aligned, it is possible to obtain a desired driving depth, and the operability is improved. When the adjuster 1 is rotated in any direction as shown in FIG.
An illustration 35 instructing whether to be driven to sink or float on the nine surfaces is displayed near the adjuster 1 on the nose 32. Thereby, it is possible to easily determine in which direction the adjuster 1 should be turned, and the operability is improved.

In the above embodiment, the annular groove 6b and the concave portion 6c of the PL piece 6 are provided at different positions, and the adjuster 1 is provided with two annular grooves 1c. However, the concave portion 6c is provided in the annular groove 6b. In this case, only one annular groove 1d and one C-shaped spring 2 are provided in the adjuster 1, and the number of parts is reduced as compared with the above embodiment, so that the cost can be reduced. At the same time, the assemblability is improved. Also, the concave portion 6c of the PL piece 6 is approximately 180
Although two components are provided at an interval of °, a configuration in which many recesses 6c are provided at a small interval increases the number of positions where the adjuster 1 is prevented from rotating, and the operability is further improved. Further, in the above embodiment, the upper push lever 3
Attach the PL piece 6 to the lower end, and push the lower push lever 4
Male screw 4 fitted at the upper end with female screw 1b of adjuster 1
However, the PL piece 6 may be attached to the upper end of the lower push lever 4 and a male screw may be provided at the lower end of the upper push lever 3 to be fitted with the female thread 1b of the adjuster 1. It is. Also, the scale 27 serving as a guide for adjusting the driving depth may be provided at a portion that does not move with the driving operation and the driving operation of the driving depth without being provided on the nose 32.

[0015]

As described above, according to the present invention, the rotation of the adjuster can be prevented by the C-shaped thin spring member, so that the assemblability can be improved and the outer periphery of the adjuster can be reduced. It is possible to provide an inexpensive driving-in depth adjusting device with good operability.

[Brief description of the drawings]

FIG. 1 is an exploded view of a main part showing an embodiment of a driving depth adjusting device according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a side view showing a driving machine provided with the driving depth adjusting device of FIG. 1;

FIG. 4 is an enlarged view of a part B of FIG. 3;

FIG. 5 is an enlarged view of a main part in the C-direction side surface of the driving machine of FIG. 3;

FIG. 6 is an exploded view of a main part showing an example of a conventional driving depth adjusting device.

[Explanation of symbols]

1 is an adjuster, 1c is an annular groove, 1d is a through hole, 2 is C
Type spring, 3 is upper push lever, 4 is lower push lever, 5 is nut, 6 is PL piece, 6b is annular groove, 6c is concave, 12 is groove, 14 is spring, 27 is scale, and 29 is driven Material, 30 is a stop, and 35 is an illustration.

Claims (5)

[Claims] 1. A driver blade for driving a stopper, a main body including an ejection section from which the stopper is driven, and a trigger for controlling a driving operation, and a main body provided from the trigger to the injection section, and an axial direction of the driver blade. A push lever that is capable of reciprocating and controls a driving operation together with a trigger, wherein the push lever is divided into an upper push lever and a lower push lever, wherein the push lever is divided between the upper push lever and the lower push lever. At one end, a screw portion is provided at one end, and a hole is provided at the other end surface,
A rotatable adjuster provided with at least one annular groove provided with at least one through hole penetrating the inner hole at the outer periphery of the other end, and provided at the lower end of the upper push lever or the upper end of the lower push lever. A push lever having one end housed in a hole provided at the other end of the adjuster, having an annular groove at a position facing the annular groove of the adjuster, and having at least one recess at a position facing the annular groove of the adjuster. One or more pieces are attached to the annular groove of the adjuster, and a projection provided on a part thereof projects inward from the through hole of the annular groove, and is engaged with the annular groove of the push lever piece and provided on the push lever piece. A thin C-shaped spring wire that can be engaged with the recessed part, and a screw part of an adjuster is provided at the upper end of the lower push lever or the lower end of the upper push lever. Fastening tool of driving depth adjusting device is characterized in that a configuration in which a screw portion for screw fitting. 2. A driving depth adjusting device for a driving machine according to claim 1, wherein said push lever piece is attached to a lower end portion of an upper push lever by a nut. 3. The driving machine according to claim 2, wherein a nut for fixing the push lever piece to a nut is located inside a spring that constantly presses the push lever toward the injection port, and positions the spring. Driving depth adjustment device. 4. A groove is provided below a screw portion of the lower push lever so that the groove does not move with a driving operation and a driving operation of a driving depth, and the push lever is pressed against a material to be driven. 2. A driving depth adjusting device for a driving machine according to claim 1, wherein a scale is provided in a portion near the groove. 5. A display is provided in the vicinity of said adjuster to indicate in which direction the adjuster is to be rotated so that the stopper is driven into the surface of the material to be driven. The driving depth adjusting device for a driving machine according to claim 1.