JPH0715280U - Driving mechanism in staple driving machine - Google Patents

Abstract

(57) [Summary] [Structure] In a staple driving machine in which both legs 2a of a staple 2 are driven so as to intersect, both legs of the staple are alternately bent back and forth with respect to the driving direction, while the staple of the driving unit 1 is stapled. One of the receiving surfaces of the legs has a receiving groove 1 having a depth corresponding to the distance between the tips of the legs in a side view of the staple.
4 was formed. [Effect] Since the dimensional difference in side view due to the alternate bending of both legs of the staple is absorbed by the receiving groove 14, the staple is held in a normal posture. The stapled leg portions 2a of the staples intersect in the material to be driven, but since the both leg portions are formed alternately, the both leg portions do not collide with each other at the intersecting portion, and reliable driving is possible.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a driving mechanism for driving by crossing staple legs in a staple driving machine.

[0002]

[Prior art]

 In general, when stapling a ceiling material such as gypsum board to a ceiling base material, staple legs are crossed and driven in order to increase the bonding strength between the ceiling material and the base material. . In this case, it is necessary to prevent the leg members from colliding with each other in the driven material after the staples have been driven in. Therefore, as shown in FIGS. 7 (a), (b) and (c), staples that are specially processed at the tips 21 of the leg portions 20 called divergent point processing are used.

However, the divergent point processing is a complicated processing method, in which each of the wire rods that is the material of the staple is supplied, and the above-mentioned processing is performed on both ends of each wire rod before it is bent into a U-shape. It was something to give. Therefore, the productivity of staples was very low and the cost was high.

[0004]

[The purpose of the device]

 An object of the present invention is to solve the above-mentioned drawbacks and to provide a driving mechanism in a staple driving machine which can use staples which can be mass-produced.

[0005]

[Means for achieving the purpose]

 In order to achieve the above-mentioned object, a driving mechanism in a staple driving machine according to the present invention supplies staples to a cylindrical driving portion, and drives the staples by a driver driven along the driving portion, In a staple driving machine in which both legs of a staple are driven so as to intersect the material to be driven, one of the legs of the staple is alternately bent forward with respect to the driving direction and the other is bent backward with the other. A receiving groove having a depth corresponding to the distance between the tips of both legs in the side view of the staple is formed on the receiving surface of one of the staple leg receiving surfaces of the driving section. And

[0006] Instead of the receiving surface of one leg of the driving section, receiving grooves for receiving each leg of the staple are formed respectively on the front and rear receiving surfaces of the staple leg of the driving section. It may be configured as follows.

[0007]

[Function and effect of the device]

 According to the above configuration, when the staples are supplied from the magazine into the driving section, one of the legs enters the receiving groove of the driving section. Since the depth of the receiving groove is formed to correspond to the distance between the tips of both legs, the dimensional difference in side view due to the alternate bending of both legs of the staple is absorbed by the receiving groove. Therefore, the back part and the other leg part of the staple are held in the driving part in a normal posture.

In driving the staples, when the staples are driven by a driver, the staples are driven out along the driving portions, and are driven into the material to be driven with the legs crossing each other. The tips of both legs are formed so that they are staggered back and forth when viewed from the side, so that when both legs enter the material to be driven, there is no collision at the intersection, and smooth and reliable driving is possible. It will be possible.

Further, the staples used in the driving mechanism can be mass-produced because it is only necessary to alternately bend the leg portions of the staples by the normal chisel point processing back and forth. Therefore, since inexpensive staples can be used, the working cost can be reduced.

Note that instead of the receiving surface of one leg of the driving section, receiving grooves for receiving each leg of the staple are formed on the front and rear receiving surfaces of the staple leg of the driving section, respectively. With this structure, the depth of each receiving groove is half that of the case where it is formed on one receiving surface.

[0011]

【Example】

 1, 2 and 3 are a front view of a driving portion of a staple driving machine, a sectional view taken along line XX of FIG. 1 and a sectional view taken along line YY of FIG. 2, respectively. It is formed in a tubular shape, the back wall of which is open, and the supply end of the magazine 3 for supplying the staple 2 is continuous. Further, the tip of the driver 4 driven from the driving machine body (not shown) faces the upper part of the driving section 1. Further, the front wall at the lower end of the driving part 1 is cut out and a guide plate 5 is arranged.

The staple 2 shown in FIGS. 6A, 6B and 6C is used for the staple driving machine. The tips 7 of the leg portions 2a of the staple 2 are formed in a wedge shape called a normal chisel point. Further, the leg portions 2a of the staple 2 are bent so that one of them is staggered forward and the other is staggered rearward with respect to the driving direction.

As shown in FIG. 2, the magazine 3 is loaded with a connecting staple in which a plurality of U-shaped staples 2 are adhesively connected, and is constantly urged by the pusher (not shown) toward the driving section 1. Therefore, the frontmost staple 2 is supplied to the driving portion 1.

The driver 4 is configured to move up and down along the driving portion 1 by a drive mechanism using compressed air or the like.

Next, the guide plate 5 bends the tips of both legs 2a of the staple 2 inward and guides the staple 2 so as to intersect in a material to be driven (not shown). It constitutes a part of 1. As shown in FIGS. 1 to 3, the guide plate 5 is formed by connecting the upper piece 5a and the lower piece 5b in a Z shape, and the upper end of the upper piece 5a is provided on the front wall of the driving portion 1. It is pivotally attached to the supported support shaft 8. Further, a shaft body 9 protruding from the front wall 1a of the driving part 1 penetrates through the center of the upper piece part 5a, and a coil spring 10 is arranged between the tip of the shaft body 9 and the upper piece part 5a. The plate 5 is constantly urged toward the driving part 1. Further, the lower piece portion 5b is formed so as to enter the driving portion 1 from the cutout portion 11 of the driving portion 1, an inclined surface 12 is formed on the inner side surface of the lower piece portion 5b, and the upper end thereof is driven. The lower part is formed so as to be flush with the inner surface of the front wall 1a of the part 1 so as to come into contact with the rear face 1b of the driving part 1. Further, guide grooves 13 for guiding the staple leg portions 2a punched out from the striking portion 1 are curvedly formed on both sides of the inner surface of the lower piece portion 5b.

Next, as shown in FIGS. 3 to 5, the receiving surface (the inner surface of the front wall) of one leg 2a of the receiving surfaces of the staple leg 2a of the driving section 1 and the guide plate 5 is stapled as shown in FIGS. The receiving groove 14 of the leg portion 2a is continuously formed in the vertical direction. The depth of the receiving groove 14 is formed to correspond to the distance L between the tips of the leg portions 2a in a side view of the staple 2 (see FIG. 6B). In the guide plate 5, the guide groove 13 serves as the receiving groove 14.

According to the above configuration, when the staple 2 is supplied from the magazine 3 into the driving section 1, one leg 2a enters into the receiving groove 14 of the driving section 1 as shown in FIGS. . Since the depth of the receiving groove 14 is formed to correspond to the distance L between the tips of both legs, the receiving groove 14 absorbs the dimensional difference in side view due to the alternate bending of both legs 2a of the staple 2. To be done. Therefore, the back portion 2b of the staple 2 and the other leg portion 2a are held in the driving portion 1 in a normal posture.

When the staple 2 is driven by the driver 4 when driving the staple 2, the staple 2 slides downward along the driving portion 1, and as shown by the dotted line in FIG. The guide groove 13 bends the inside, and in this state it is driven into the material to be driven. The legs 2a of the staple 2 intersect in the material to be driven. However, the tips of both legs 2a are formed so that they are staggered in the front-back direction when viewed from the side, so that when both legs 2a enter into the material to be driven, they do not collide with each other at the intersection, and they are smooth and reliable. It is possible to type in. When the back portion 2b of the staple 2 driven by the driver 4 hits the inner inclined surface 12 of the lower piece portion 5b of the guide plate 5 and slides, the guide plate 5 is pushed forward against the coil spring 10 and the staple 2 Allow the back 2b of the to pass through the driving part 1.

Further, the staple 2 used in the above-mentioned driving mechanism can be produced by simply bending the leg portions 2a of the staple 2 by a normal chisel point process back and forth alternately, and therefore mass production is possible. Therefore, inexpensive staples can be used, and the working cost can be reduced.

In the above embodiment, an example in which the receiving groove of the staple leg portion is formed on the receiving surface of one leg portion of the driving portion is shown. However, instead of this, the staple leg portion of the driving portion is formed. The front and rear receiving surfaces may be formed with receiving grooves for receiving the respective leg portions of the staple. In this case, the depth of each receiving groove may be half that of the above-mentioned embodiment.

[Brief description of drawings]

FIG. 1 is a front view of a driving section of a staple driving machine according to the present invention.

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

FIG. 3 is a sectional view taken along line YY of FIG.

FIG. 4 is a sectional view taken along line ZZ in FIG.

FIG. 5 is a bottom view of the driving part.

FIG. 6 is a front view, a side view, and a bottom view of a staple manufactured by chisel point processing.

FIG. 7 is a front view, a side view, and a bottom view of a staple by divergent point processing.

[Explanation of symbols]

 1 Driving part 2 Staples 2a Leg part 4 Driver 13 Guide groove 14 Receiving groove

Claims (2)

[Scope of utility model registration request] 1. A staple driving method in which staples are supplied to a cylindrical driving portion, the staples are driven by a driver driven along the driving portion, and the staples are driven so that both legs of the staples intersect a material to be driven. In the machine, one of the leg portions of the staple is alternately bent forward and the other is rearward with respect to the driving direction. Is a driving mechanism in a staple driving machine, in which a receiving groove having a depth corresponding to a distance between tips of both legs in a side view of the staple is formed. 2. A receiving groove for receiving each leg of the staple is formed in each of the front and rear receiving surfaces of the staple leg of the driving section, instead of the receiving surface of one leg of the driving section. A driving mechanism for a staple driving machine.