JPS5914141Y2 - Magazine for clasp driving machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a magazine for a fastening machine for driving fasteners such as staples and nails.

As an example of this type of driving machine, a pneumatic fastening machine is known.

This machine uses compressed air to rapidly lower the driver within the nose, and the staples loaded in the nose are ejected one by one from the tip of the nose to perform the staple driving operation. This is what I did.

By the way, the staples to be loaded into the nose are a series of connected staples that are loaded into a magazine, and the staples are fed into the nose one by one starting from the most advanced of the connected bodies. That's what I do.

The driving operation of the driver can be performed sequentially and continuously by operating an operating member such as a trigger lever.

Such a fastening machine is capable of driving a large number of staples extremely efficiently and accurately, and is widely used in various nail driving operations.

An object of the present invention is to provide a magazine for a clasp driving machine such as a nailer that reduces the number of bushing parts in the clasp driving machine.

A further object of the present invention is to provide a magazine for a clasp driving machine that has a simple structure, is easy to manufacture and assemble, has a small number of parts, and can reduce its overall weight.

Hereinafter, a preferred embodiment of the present invention will be described in detail based on the drawings.

These drawings show a staple driving machine that drives U-shaped clasps (that is, staples), but in the specification, when the clasp is referred to as a clasp, this clasp is a regular round-head nail. , T
Used to include nails, etc.

Fig. 1 is a partially cutaway side view of a staple driving machine equipped with a magazine according to the present invention. Illustrated together.

FIG. 2 is a plan view showing the vicinity of the rear end of the magazine.

FIGS. 3 and 4 are plan views showing the process of locking the bushing.

In these drawings, reference numeral 1 denotes a driving machine main body, and a drive mechanism consisting of a cylinder 1a and a piston (not shown) is built in the driving machine main body 1.

Reference numeral 2 denotes a nose, which protrudes from the lower end side of the driving machine main body 1, and has a driver guide hole 2a formed therein.
A driver 3 serving as a staple driving member is installed inside the device so as to be able to reciprocate vertically.

This driver 3 is integrally connected to a piston of the drive mechanism (not shown).

Then, the back wall of the middle part of the nose 2, that is, the first
A staple supply port 2b is opened on the right side wall in the figure so as to communicate with the driver guide hole 2a, and a staple supply port 2b is adapted to feed the staple A toward the driver guide hole 2a. A guiding magazine M is attached.

This magazine M includes a stable feed guide 4 that supports the stable A, a button 7 that slides the stable feed guide 4 in the front-back direction to push the stable A, a spring spring 8 that urges the button 7 forward, and Stable A arranged and loaded above the stable feed guide 4
The main component is the magazine cover 9 which prevents the magazine from falling out.

The stable feed guide 4 is attached to the top block 2C that constitutes the rear wall of the driver guide hole 2a with set screws 5a and 5b.
The attachment is fixed so as to protrude perpendicularly to the rear side of the nose 2 via a fixing member such as.

Further, near the rear end of the stable feed guide 4, that is, near the right end in FIG. 1, the stable feed guide 4 is fixedly supported by a tail hanger 6 to a grip (not shown) of the driving machine main body 1.

The stable feed guide 4 is assembled by assembling two symmetrical plates against each other, and has a rectangular cylindrical staple engagement mounting surface 4a formed on the upper end surface and a stable feed guide. 4. The middle portions of both sides are formed as elongated bodies that are bent into grooves 4b and 4C over the entire length.

A U-shaped stable A is loaded so as to straddle the stable feed guide 4 from above the staple engagement mounting surface 4a.

Further, the stable feed guide 4 has a bushing 7.
The stable feed guide 4 is fitted so as to be movable in the longitudinal direction.

This bushing 7 is placed on the stable feed guide 4,
This is a member for pressing the group of stables loaded so as to straddle this from the rear end side toward the nose 2 side, and the leading edge 7a is formed in a shape that fits the stable A.

Further, on one side of the button 7, a button hook 71 having a folded engagement claw 71a is rotatably supported by a support shaft 72 at an end extending toward the rear end.

This bushing hook 71 is provided with two movable bearings 71b at upper and lower positions so as to protrude forward.

This movable bearing 71b is swingable about a support shaft 72, and a hollow winding shaft 73 is pivotally supported on this movable bearing 71b.

A spiral spring 8 is attached to this winding shaft 73 as a kind of winding spring.
The other end 8a is fixed so as to be wound clockwise in FIG.

This spiral spring 8 is disposed within the concave portion 4b.

One end 8b of the spiral spring 8 is fixed to the tip of the concave portion 4b (that is, the tip of the stable feed guide 4).

The spring spring 8 always elastically urges the bushing 7 along the longitudinal direction of the stable feeding guide 4 toward the stable feeding side, that is, toward the nose 2 .

At the same time, the same mainspring spring 8 causes the button hook 71 to
is biased around the support shaft 72 in a counterclockwise direction in FIG.

For this purpose, the folded engagement claw 71a moves together with the bushing 7 while always being in contact with the grooved portion 4b formed on the side surface of the stable feed guide 4.

Reference numeral 9 denotes a magazine cover, which is entirely made of a flexible material (for example, ribbon steel) and has a long shape.

This magazine cover 9 can be made of ribbon steel directly, or can be covered with a stretchable material such as rubber 9a.

The front end 91 of the magazine cover 9 is fixedly attached to the driving machine body 1, and the rear end 92 is attached to a hollow pin 10b to an operating lever 10C rotatably disposed above the tail block 10. Fixed through.

The magazine cover 9 is placed above the stable feed guide 4.
It is arranged parallel to the stable feeding guide 4, and functions to prevent the stable A loaded on the staple holding and mounting surface 4a from being removed.

The tail block 10 has four hooking parts 10a on its rear end surface, which are engaged with the folded engagement claws 71a of the plush hook 71, and a staple feed guide. An operating lever 10C is rotatably supported by a hollow pin 10b which is provided to protrude above the stable engagement mounting surface 4a of No. 4, and the magazine cover -9 is attached to this operating lever 10C. The rear end 92 is fixed.

Note that the operation lever 10C and the hollow pin 10B
The fitted state is that of a long hole (not shown),
The operating lever 10C can be moved slightly in the longitudinal direction of the staple feeding guide 4.

The reason for this is that when the magazine cover 9 is bent to open the upper part of the staple engagement mounting surface 4a, the other end 92 can be moved forward due to the bending of the magazine cover 9.

An inclined contact side 10d is formed on the front side and lower edge of the operating lever 10C, facing the button 7.
When this inclined abutment side 10d abuts a lever abutment inclination part 74 formed on the opposite rear end surface side of the button 7 and this lever abutment inclination part 74 pushes the inclination abutment side 10d backward, the operation is performed. The lever 10C is rotated clockwise around the hollow pin 10b.

Therefore, in the above configuration, when trying to load the staple A into the staple feed guide 4, the button 7
The finger hook hooks the finger on the portion 75 and moves the button 7 so as to pull it backward along the staple feed guide 4 against the elastic force of the spiral spring 8.

When the button 7 is moved to the vicinity of the rear end of the staple feed guide 4, the lever abutting inclined portion 74 of the button 7 eventually comes into contact with the inclined abutting side 10d of the operation lever 10C, and the button 7 is still moved. When you pull it backwards,
As shown in FIG. 3, the operating lever 10C has a hollow pin 10.
Rotate clockwise around b to flex the magazine cover 9.

As a result, the upper part of the staple engagement mounting surface 4a is opened.

In this state, the folded engagement claw 71 a of the butcher hook 71 is attached to the hooking recess 10 of the tail block 10.
a, and the magazine cover 9 is fixed in a bent state.

When the staples connected to the staple engagement mounting surface 4a, which is open at the top, are loaded, the button hook 71 is operated by hand, and the folded engagement claw 71a is inserted into the hooking recess 10.
When the button is removed from the position a, the button 7 moves by the spring force of the spiral spring 8 so as to come into contact with the rear end of the connecting stable.

As described above, according to the present invention, the spring that urges the button to the staple feeding side can also be used as a spring to lock the button to the latch located at the rear end of the staple feeding guide. The number of points is reduced and the manufacturing cost of the magazine is reduced.

[Brief explanation of the drawing]

FIG. 1 is a side view of the magazine of the present invention, incorporating a cross-section of the magazine and showing the stapler to which the magazine is attached in cross-section. Figure 2 is a plan view showing the vicinity of the rear end of the magazine;
The figure is a plan view showing the button in the middle of a locking operation, and FIG. 4 is a sectional view showing the button in a completely locked state. 4... Staple feed guide, 7...
Butsusha, 8... Spring spring, 8a...
...Other end of the mainspring spring, 8b...One end of the mainspring spring, 10a...I) Normal phase recess, 71.
...butsushahook, 72...spindle, 7
3... Winding shaft, M... Magazine.

Claims (1)

[Scope of utility model registration request] A button is reciprocally disposed on a lock feeding guide that loads a lock and guides the lock toward the lock feeding side, and a latch part that hooks the button at the other end of the lock feeding guide. is disposed inside the button, and a button hook that is hooked to the latching portion is rotatably arranged via a spindle, and one end of the button is fixed to the clasp delivery side. A winding shaft having a wound spring wound thereon from the other end side is provided at a position offset from the above-mentioned spindle toward the clasp feeding guide side, and this winding spring urges the button to the clasp feeding side, and the button is hooked. A machining machine for a clasp driving machine, characterized in that the clasp is biased so as to come into contact with a clasp feeding guide.