JPH0616672Y2 - Driving depth adjusting device for driving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Utilization of the Invention] The present invention relates to a driving depth adjusting device for a driving machine for driving a fastener such as a nail like an air nailing machine.

[Background of the invention]

An example of the prior art is shown in FIGS. 6 and 7. 6 and 7
In the figure, a stopper 6 is driven on a material 5 to be driven by a well-known driving machine in which a push-down lever 3 is attached to an injection section 2 at the tip of a driving machine body 1 so as to be vertically movable, and a driving depth adjusting member is attached to a lower portion of the push lever 3. It shows a complicated state.

In the figure, in this structure, a screw 7 is provided on the outer periphery of the lower portion of the push lever 3, and a screw 9 provided on the inner periphery of the cylindrical driving depth adjusting member 4 is screw-fitted and a groove 8 provided on the upper portion of the push lever 3. The convex portion 11 provided on the annular spring 10 is press-engaged with the annular spring 10 to prevent the push lever 3 from rotating.

When driving the stopper 6, the end face 12 of the driving depth adjusting member 4 is brought into contact with the surface of the material 5 to be driven, and the push lever 3 is engaged with the locking portion 1.
Push up until touching 3. Also, the driving depth adjusting member 4
When is rotated, the distance A between the lower end of the driving rod 14 and the end face 12 of the driving depth adjusting member changes, so that the driving depth can be adjusted.

On the other hand, the adjustment of the driving depth is particularly necessary when driving into a soft material 5 to be driven such as gypsum board. In this case, if the area of the end surface 12 of the driving depth adjusting member is small, the pressing force and the driving force at the time of driving can be reduced. Since the material 5 to be driven is damaged by an impact or the like, the driving depth adjusting member end surface 12 requires a large area. Also the outlet 1
5 and the dimension B of the outer circumference of the driving depth adjusting member 4 are too large to hit in a narrow space, it is necessary to make them as small as possible.

However, the driving depth adjusting member 4 is screw-fitted to the lower portion of the push lever 3, and if the area of the driving depth adjusting member end face 12 is formed to be large as described above, the above-mentioned dimension B becomes large, and it can be used in a narrow place. There was a drawback that the stopper 6 could not be driven.

[Purpose of device]

The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to widen the contact surface with the material to be driven in the driving depth adjusting device of the driving machine of this kind and to scratch the material to be driven. It is also possible to drive into a narrow space while eliminating the problem.

[Outline of device]

The present invention focuses on the point that an elastic member such as rubber has a strong restoring force within the elastic limit, and the relationship between the injection port, the ring, and the elastic member is attached so that the elastic member is detachable and prevents the screw from loosening. Is devised.

[Example of device]

FIG. 1 is an overall view showing an embodiment of the present invention.
3 and 4 are sectional views showing a driving depth adjusting device of the present invention, FIG. 4 is a sectional view taken along the line II of FIG. 2, and FIG. 5 is a state in which the driving depth adjusting device is removed. FIG.

A push lever 3 is vertically movably attached to an injection portion 2 at the tip of the driving machine body 1, and the push lever 3 is guided by a square hole 16 provided in the injection portion 2. On the other hand, the convex portion 11 provided on the inner periphery of the cylindrical elastic member 17 having the elastic member end surface 20 in which the screw 7 is provided in the central portion to widen the contact portion with the driven material 5 is pressed against the outer periphery of the injection portion 2. The elastic member 17 is detachably fitted to the ejecting portion 2 by engaging with it.

On the outer circumference of the elastic member 17, a bottomed ring 19 having a screw 9 on the lower inner circumference is arranged.
The upper part of the inner circumference of the ring 19 is fitted with the screw 7 provided in the central portion, and the convex portion 1 provided on the upper part of the elastic member 17 is provided.
8, so that the ring 19 and the elastic member 17 are prevented from loosening due to vibration caused by driving.

The driving operation of the driving machine having the driving depth adjusting device of the present invention constructed as described above will be described below. When the stopper 6 is driven into the soft material 5 to be driven such as a gypsum board by the driver body 1, the elastic member end face 20 is applied to the surface of the material 5 to be driven. Driving depth A of the stopper 6 driven in this way
Is determined by the distance A between the driving rod end surface 21 and the elastic member end surface 20 when the driving rod 14 descends most. Therefore, when it is desired to increase the driving depth, the ring 19 is rotated in the direction in which the elastic member 17 moves upward to move the elastic member 17 upward, and then the driving operation is performed, as shown in FIG. Since the distance A between the driving rod end surface 21 and the elastic member end surface 20 becomes long, the driving rod 14 projects sufficiently from the elastic member end surface 20 and the stopper 6 is driven deeper than the surface of the driven material 5.

On the other hand, when the driving depth is made shallower, the elastic member 17 is moved downward, contrary to the above operation, and the driving rod end surface 21 is moved as shown in FIG.
And the distance A between the elastic member end surface 20 is shortened. If the driving operation is carried out in this state, the driving rod 14 projects little from the elastic member end surface 20, so that the stopper 6 can be driven so as to coincide with the surface of the driven material 5. Further, when performing a driving operation in a narrow space such as corner driving, the ring 19 is moved downward and the ring 19 and the elastic member 17 are removed from the injection portion 2 as shown in FIG. By performing the work, it is possible to drive the work into a narrow space.

[Effect of device]

According to the present invention, the contact area of the driving depth adjusting device with the material to be driven can be increased and the contact portion with the material to be driven is formed of an elastic member, so that a soft driven material such as a gypsum board can be driven. There is no damage to the material to be driven during the operation of driving into the material. Further, since the driving operation can be performed even if the driving depth adjusting device is detached from the main body, the driving workability in a narrow space is improved.

[Brief description of drawings]

FIG. 1 is an overall side view showing a driving machine adopting a driving depth adjusting device of the present invention, FIG. 2 and FIG. 3 are partial vertical sectional side views of FIG. 1, and FIG. 4 is I of FIG. -I line sectional view, FIG. 5 is a partial vertical sectional side view of FIG. 1 showing a state in which the driving depth adjusting device is removed, and FIGS. 6 and 7 are driving depth adjusting of a conventional driving machine. FIG. 8 is a partial vertical sectional side view showing an example of the apparatus, and FIG. 8 is II-II in FIG.
It is a line sectional view. In the figure, 1 is a driving tool body, 2 is an injection part, 6 is a stopper,
7, 9 are screws, 11, 18 are convex parts, 17 is an elastic member, 1
9 is a ring.

Claims (1)

[Scope of utility model registration request] 1. An injection part of a driving machine for driving a stopper, a push lever held vertically below the injection part, and a driving depth adjusting member arranged on the outer periphery of the lower part of the injection part. An elastic member made of an elastic material having at least one convex portion on the inner circumference and a convex portion on the upper outer circumference and having a threaded portion on the outer circumference, and a screw fitting on the threaded portion of the elastic member. And a ring provided with an inner periphery of a thread portion to be fitted, the elastic member being vertically movably attached to the ejection portion via the inner peripheral convex portion, and the ring outer periphery of the elastic member via the outer peripheral convex portion of the elastic member. A driving depth adjusting device for a driving machine, characterized in that the driving lever can be mounted without any damage, and further the push lever can be extended from the lower surface of the injection portion to enable driving even if the elastic member and the ring are removed.