JPH072006U - Staple driving control device for staple driving machine - Google Patents

Abstract

(57) [Summary] [Structure] In a staple driving machine for driving a U-shaped staple 3 toward a material to be driven along a staple driving path 4 by a driver 1, both staple legs 3a are provided below the staple driving path 4. The guiding parts 23a and 23b for guiding the respective 3b are formed, and both guiding parts are curved inward and formed in opposite directions in the front-rear direction. [Effect] When the driver 1 is driven by impact, the staples are moved downward by the driver 1 along the driving path, and the tips of the staple legs on both sides are guided to the guide portions of the staple legs to be curved inward, respectively, and Since the legs bend in opposite directions to each other, the tips of both legs in the material to be driven do not shift in the front-to-rear direction and do not collide with each other in the material to be driven, so that it is possible to reliably drive in a crossed state.

Description

[Detailed description of the device]

[0001]

[Prior art and its problems]

 Generally, when U-shaped staples are driven into two timbers arranged side by side for a fastening connection, the two legs of the staples are curved inward in the driving material to hold the staples. The idea of improving power is already known.

Furthermore, when fixing a plate material to a soft material such as gypsum board, a technique has been already proposed in which both legs of the staple are further curved so that both staple legs intersect in the soft material. Has been done.

In such a staple in which the staple legs are curved and driven inward, an inclined surface facing inward is formed at the tip of each leg, and as the staple legs enter the driven material, the driven material is driven. It is configured so that the tip of the leg is guided in a curved shape by the contact resistance with.

As another example of bending the staple leg inward, a driving guide is provided which engages with the leg portion of the staple ejected at the staple ejection portion of the staple driving tool to guide the staple leg inward. Also done by.

However, since the tips of the staple legs enter toward each other inward in the material to be driven, the tips of both legs of the staple approach each other, and finally collide in the material to be driven, and further progress is made. When the staple legs are stopped, the staple legs are deformed unexpectedly, destroying the plasterboard and other materials to be driven, resulting in a phenomenon that the holding force is extremely reduced.

[0006]

An object of the present invention is to solve the above-mentioned drawbacks and to provide a staple driving control device in a staple driving machine capable of guiding and controlling the tips of the staple legs on both sides so as not to collide with each other. And

[0007]

[Means for achieving the purpose]

 In order to achieve the above-mentioned object, the staple driving control device in the staple driving machine according to the present invention uses a U-shaped staple formed by a driver driven by an impact to a material to be driven along a staple driving path. In the staple driving machine for driving toward each other, guide portions for guiding the respective staple legs are formed below the staple ejection path, both guide portions are curved inward, and are formed in opposite directions in the front-rear direction. Is characterized by.

A guide portion for guiding the staple leg in either the forward direction or the backward direction is provided at a guide portion for guiding the staple leg of at least one of the staple ejection paths by a spring force so as to project therefrom. It is preferable that the piece can be retracted from the staple ejection path against the spring force.

[0009]

[Function and effect of the device]

 According to the above configuration, when staples are supplied from the magazine portion to the staple driving path and then the driver is driven by impact, the staples are moved downward by the driver along the driving path, and the tips of the staple legs on both sides are removed. It is guided to the guide part of the staple leg. However, since both guide parts are curved inward and are formed in opposite directions in the front-rear direction, the staple legs are also guided so that both sides are inwardly curved, and in the front-rear direction. Induction controlled. Therefore, after that, the staples are ejected, and the tips of the staple legs enter the material to be driven, but in the material to be driven, the tips of both legs are displaced from each other in the front-back direction, and the tips are in the material to be driven. There is no collision, and it is possible to drive into the intersecting state with certainty.

Further, since both guide portions of the staple leg are curvedly formed inward, it is possible to use even a normal staple in which the inwardly inclined surface is not formed at the tip of the staple leg.

By disposing the guide guide piece protruding from the guide portion of the staple leg, one staple leg can be bent, and the guide guide piece can be retracted from the staple ejection path against the spring force. By this, the entire staple can be smoothly driven out of the driving machine.

[0012]

【Example】

 FIG. 1 shows a main part of a staple driving section of a staple driving machine. The staple driving machine directs the U-shaped staples 3 supplied from the magazine section 2 toward the material to be driven along the staple driving path 4 by the driver 1 driven by an impact mechanism (not shown). It is something that is driven in.

The staple ejection path 4 is composed of a magazine portion 2, a driver guide member 5, and a staple leg guiding member 6.

A supply passage 7 for the staples 3 formed and connected in a U shape is formed inside the magazine portion 2, and a U-shaped penetrating shape corresponding to the shape of the staple 3 is formed on a front end surface of the supply passage 7. The formed opening 8 is formed (see FIG. 2).

A guide groove 9 of the driver 1 is formed on the back side of the driver guide member 5 and abuts on and is fixed to the front surface of the magazine portion 2, so that the driver 1 and the staple 3 are provided inside the guide groove 9. A part of the staple ejection path 4 for guiding the sliding of the sheet is formed.

An attachment portion 6a arranged at a front portion of the driver guide member 5 is formed on an upper portion of the staple leg guide member 6, and an L-shaped staple guide portion 6b is formed to project rearward from a lower end thereof. . The mounting portion 6a is provided with a bearing hole 12 of a support shaft 11 pivotally mounted on a front projection 10 of the driver guide member 5 and a bolt insertion hole 13, and the bolt 14 inserted through the insertion hole 13 is screwdriver. A spring 16 is arranged between the front end of the bolt 14 and the front surface of the staple leg guide member 6 while being fixed to the recess 15 of the guide member 5. As a result, the staple leg guide member 6 is pivotally attached to the front portion of the driver guide member 5 so as to be rotatable in the front-rear direction, and the staple leg guide portion 6b is urged so as to always contact the front surface of the magazine portion 2. There is.

A receiving surface 17 for receiving the lower end of the driver guide member 5 is formed on the staple leg guiding portion 6b, and an inclined surface 18 is formed from the tip thereof. The width of the inclined surface 18 is formed to be equal to the width of the guide groove 9 of the driver guide member 5, the upper end of which is connected to the lower end of the inner surface of the guide groove 9 and the lower end of the inclined surface 18 contacts the front surface of the magazine section 2. To be done. Therefore, the staple ejection path 4 is closed by the inclined surface 18.

Further, an abutting portion 19 that abuts the front surface of the magazine portion 2 is formed below the inclined surface 18, and staple leg guiding grooves 20a and 20b are formed on both sides of the abutting portion 19. Both of the guide grooves 20a and 20b are formed so as to be curved inward, and one guide groove 20a is formed deep at the tip (lower end) side and the other guide groove 20b is formed shallow. On the other hand, on the front surface of the magazine portion 2, a concave portion 21 is formed corresponding to the guide groove 20b having a shallow tip of the guide grooves 20a and 20b, and a guide guide corresponding to the guide groove 20a having a deep tip. The piece 22 is arranged so as to project. The guide groove 20b having a shallow tip and the concave portion 21, and the guide groove 20a having a deep tip and the guide guide piece 22 respectively guide the guide portions 23a and 23b of the staple legs 3a and 3b that have passed through the staple ejection path 4. Are formed in opposite directions in the front-back direction (see Fig. 3 (a) (b)).

The guide guide piece 22 is biased in the protruding direction by the spring force of the spring 24, and is provided so as to be retractable from the staple ejection path 4 against the spring force.

In the above structure, when the driver 1 is shockedly driven after supplying the staple 3 from the magazine section 2 to the staple ejection path 4, the staple 3 is moved downward by the driver 1 along the ejection path 4, As shown in FIGS. 3 (a) and 3 (b), the tips of the staple legs 3a and 3b on both sides are guided to the guide portions 23a and 23b of the staple legs 3a and 3b. However, since both guide portions 23a and 23b are curved inward and are formed in opposite directions in the front-rear direction, the staple legs 3a and 3b are also guided and controlled so that both sides are curved inward. At the same time, guidance control is performed in the forward and backward directions.

That is, in the guide portion 23b constituted by the guide groove 20b having a shallow tip and the concave portion 21, the tip of the staple leg 3b is guided backward and bent, but the guide groove 20a and the guide groove 20a having a deep tip are formed. In the guide portion 23 a formed with the guide piece 22, the guide portion 22 is guided and bent forward by the guide piece 22.

After that, the staple 3 is driven out, and the tips of the staple legs 3a and 3b enter into the material to be driven. However, as shown in FIG. There is no deviation in the front-rear direction and the tip does not collide with the materials to be hammered 25, 26, so that it is possible to reliably hammer into the intersecting state.

As the staples 3 are ejected, the driver 1 and the back portions 3c (crown portions) of the staples 3 also move downward along the staple ejection path 4 and, as shown in FIGS. 4 (a) and 4 (b), The staple leg guiding member 6 is pushed forward because the inclined surface 18 of the staple leg guiding member 6 that closes the driving path 4 is pressed immediately before the back portion 3c is driven from the tip of the driving machine, so that the staple leg guiding member 6 is pushed forward. 6 rotates forward against the spring force of the spring 16 shown in FIG. Therefore, the ejection path 4 is opened, and the back portion of the staple 3 moves downward. At that time, the guide guide piece 22 retreats from the staple ejection path 4 against the spring force of the spring 24. Therefore, the entire staple is smoothly driven out of the driving machine.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a staple driving control device in a staple driving machine.

FIG. 2 is an exploded perspective view of the staple driving device.

3A and 3B are cross-sectional views of the guide portion of one staple leg.

4A and 4B are cross-sectional views of the guide portion of the other staple leg.

FIG. 5 is a cross-sectional view of a staple in a state of being driven into a material to be driven.

[Explanation of symbols]

 1 Driver 3 Staple 3a Staple leg 3b Staple leg 4 Staple ejection path 22 Guide guide piece 23a Guide part 23b Guide part

Claims (2)

[Scope of utility model registration request] 1. A staple driving machine for driving a U-shaped staple by an impact-driven driver toward a material to be driven along a staple driving path, wherein both staple legs are provided below the staple driving path. A staple driving control device in a staple driving machine, characterized in that each of the guiding portions is formed so as to guide each other, and both of the guiding portions are curved inward, and are formed in opposite directions in the front-rear direction. 2. A guide portion for guiding the staple leg in either the forward direction or the backward direction is projectingly arranged by a spring force at a guide portion for guiding the staple leg of at least one of the staple ejection paths, and the guide guide is provided. A staple driving control device in a staple driving machine, characterized in that a piece can be retracted from a staple driving path against a spring force.