JPS5890471A - Screw arranging device in screw executing tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connecting screw in which a plurality of square head driving screws are connected in parallel by a connecting member, and more specifically, in this screw construction tool, a rotationally driven screw is used. The present invention relates to a screw alignment device that makes the direction of the square head of a driving screw constant.

Conventionally, as an example of a screw construction tool, there is a striking piston/cylinder mechanism that uses compressed air as a power source to drive a driving screw into an adherend, and a tool that rotationally drives a driving screw that is driven into an adherend. A pneumatic screw installation tool is known which is equipped with an air motor rotation drive mechanism. In this pneumatic screw setting tool, the lower part of the neck of a driving screw forming a screw is inserted into each of the box-shaped holders made of synthetic resin, which are connected in parallel in large numbers, and the square head of the driving screw is inserted. A connecting screw is used in which each driving screw is held one by one with the screw protruding from the top surface of a box-shaped holder.

Each of the above-mentioned driving screws is held in a box-shaped holder so that it can rotate freely, and because of this, the orientation of the square head of each driving screw is not constant. In the case of driving work, when the driving screw is strongly pushed and moved by the driving driver integrated with the striking piston,
By aligning the lower surface of the diagonal corner of the square head of this driving screw shaft along the cylindrical rotation guide, the driving screw shaft is rotated,
This ensures that the square head of the drive screw fits into the rotation drive socket in the next rotation drive process.

However, in order to keep the direction of the square head of the driving screw constant during the driving process using a cylindrical rotating guide as described above, the lower surface of the diagonal corner of the square head must be formed extremely strictly. , the square head is not guided accurately and the drive screw does not rotate, resulting in a jamming phenomenon between the square head of the drive screw and the cylindrical rotation guide, which greatly affects the rotation guide. There was a defect that caused damage.

SUMMARY OF THE INVENTION An object of the present invention is to provide a screw alignment device that effectively aligns the orientation of the square heads of each drive screw in a simple manner before driving the drive screws. In order to achieve this object, the present invention has a structure in which a lower part of the neck is inserted into a box-shaped holder which is connected in parallel in a large number and has elasticity, and a square head part is projected upward from the upper surface side of the box-shaped holder. A connecting screw consisting of a number of connected screws is used, and the driving screw is driven rotationally after driving to screw into the adherend material.The driving screw is rotationally driven from the connecting screw magazine of the screw installation tool. In this device, at least two opposing guide members each have a box-shaped holder passage groove for the box-shaped holder to pass through while being regulated. A sloped corner head alignment guide surface is provided on the upper side of one of the guide members, which contacts the corner head as the connecting screw advances and rotates the driving screw so as to keep the direction of the corner head constant. It is characterized in that at least one of the opposite sides of the square head is provided with a square head opposite side part regulating surface that advances while sliding.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 to 3. FIG. 1 shows a section of a pneumatic screw setting tool 1 that sequentially drives and rotates a driving screw, and is related to a screw aligning device 2 of the present invention.

The connection screw 6 used in the pneumatic screw construction tool 1 will be explained with reference to FIGS. 2 and 3.

That is, the connecting screws 6 are connected to a large number of box-shaped holders 4 made of synthetic resin that are connected in parallel, and to each screw 9 that is held in each box-shaped holder 4 in a box-shaped state. Consists of.

Each box-shaped holder 4 has side walls on both sides in the longitudinal direction of the connecting screw 6, and between each adjacent box-shaped holder 4 there is a flexure in the longitudinal direction of the connecting screw 3. To ensure this, cuts 11 are formed on the upper side 5 and on the lower side 107.

A plurality of cuts 12 are provided at the peripheries of the center hole 6 on the upper surface side 5 and the center hole 80 on the lower surface side 7 of the box-shaped holder 4, extending radially outward of these center holes 6 and 8. Due to the presence of these cuts 12, the enlarged diameter square head 1 of the two-drive screw 9
0 is pushed and moved by the driving driver 13 of the pneumatic screw construction tool 1, and can be pulled out from the upper surface side 5 and lower surface side 7 of the box-shaped holder 4.

Next, based on FIG. 1, the outline of the portions of the pneumatic screw working tool 1 related to the screw aligning device 2 of the present invention will be explained. A striking piston/cylinder mechanism 15 is housed in a body 14 (only a portion of which is shown in FIG. 1) of the pneumatic screw setting tool 1. The reciprocating movement of the percussion piston (not shown) of the percussion piston/cylinder mechanism 15 is controlled by the opening and closing of a head pulp (not shown) controlled by a manual trigger pulp (not shown). This is accomplished by applying compressed air from 1) to one side of the striking piston or by applying compressed air from the return compressed air storage chamber 16 to the other side of the striking piston. By the wand-shaped driving driver 13 integrated with the above-mentioned impact piston,
The driving process of the driving screw 9 is performed.

Percussion cylinder 1 of the above-mentioned percussion piston/cylinder mechanism 15
A nose portion 18 for carrying out the rotational driving process of the driving screw 9 is protruded from the bottom dead center side of the drive screw 7 through a screw feed guide plate portion 19. A driving driver 16 is inserted into this nose portion 18 in a reciprocating manner. Inside the nose portion 18 is a long cylindrical rotary drive socket 20 that fits into the square head 10 of the drive screw 9 and rotates the drive screw 9, and is rotatably mounted on ball bearings 21 and 22 and a plain bearing. Supported by 23.

A driven bevel gear 24 is integrally formed on the outer periphery of the rotational driving socket 20, and this driven bevel gear 24 meshes with a driving bevel gear 26 directly connected to an air motor 25.

A rotor 27 is externally fitted into the rotational drive socket 20 between the ball bearing 22 and the flat bearing 23 . A spherical recess 28 is formed on the outer peripheral surface of the rotor 27. A socket fixed position stop device 61 is provided to protrude laterally from the nose portion 18 and reciprocate to fit the distal end portion 30 of the valve stem 29 into the recess 28 and stop the rotation of the rotor 27 at a fixed position. There is. That is, this socket fixed position stop device 3
1, the rotary drive socket 20 is stopped from rotating with the direction of its inner diameter cross section always kept constant, and starts rotating again from this fixed stop position.

The details of the screw feed guide plate portion 19 are shown in Figures 1 to 3.
This will be explained based on the diagram. A door 66 having a pivot shaft 62 is provided on the distal end side of the screw feed guide plate section 19 (left end side of the screw feed guide plate section 19 in FIG. 1) so as to be openable and closable with respect to the screw feed guide plate section 19. The door 33 is
As shown in Figures 2 and 3, there are connecting screws 3 inside.
It has a box-shaped holder passage groove 64 for allowing the box-shaped holder 4 to advance. The flat wall surface formed in the upper part of this box-shaped holder passage groove 34 serves to restrict the opposite side 10at of the square head 10 so as to prevent the rotation of the drive screw 9. has been completed.

The rear side of the square head opposite side regulating surface 65 (see Figure 2)
6), there is a sloping square head alignment guide surface that gradually approaches the screw feeding guide plate part 19 in the feeding direction of the connecting screw 3 and is continuous with the square head opposing side regulating surface 35. ! !
I6 is formed.

On the outer surface side of the door 33 corresponding to the square head alignment guide surface 36, a door latch handle 37 for fixing the door 3 in a closed position relative to the screw feed guide plate section 19 is provided.
is provided. By pushing down the door latch handle 67, the door 66 can be opened with respect to the screw feed guide plate section 19. That is, in FIG. 2, the door 33 can be rotated clockwise.

On the other hand, the screw feed guide plate portion 19 is also provided with a box-shaped holder passage groove 38 in the lateral direction thereof for allowing the box-shaped holder 4 of the connecting screw 3 to advance (see FIG. 3). A planar square head opposite side regulating surface 69 is formed in the upper portion of this box-shaped holder passage groove S8.

On the rear side of the square head opposite side part regulating surface 69, there is a slanted square head which gradually approaches the door 6S in the feeding direction of the connecting screw 6 and is continuous with the square head opposite side part regulating surface 69. An alignment guide surface 40 is formed.

This corner head alignment guide surface 40 is formed at the rear (to the right in FIG. 2) of the corner head alignment guide surface 36 of the door 66.

As described above, the inclined square head alignment guide surfaces 66 and 40 are formed on the side of the screw feeding guide plate part 19 and the door 36, and the driving screw 9 is rotated axially with respect to the box-shaped holder 4. Since it is freely held, while the connecting screw 6 is fed from the unillustrated magazine for connecting screws toward the nose part 18,
The diagonal portion 10b of the square head 10 is first aligned with the square head alignment guide surface 4.
0 Then, the square head 100 is rotated in contact with the square head alignment guide surface 36, and the opposite side portion 10a of the square head 100 is rotated by the square head opposite side portion regulating surfaces 65 and 6.
They are arranged so as to slide to 9. Thereafter, the driving driver 13 is sent toward the nose part 18 while being restricted from rotating, and is then driven toward the rotational drive socket 20 where it stops at a fixed position.
inserted by

The effect can be exerted even if only one of the square head alignment guide surface and the square head opposite side regulating surface is used.

As described above, according to the present invention, since the direction of the driving screw is aligned on the opposite side of the square head before the driving process, it is not necessary to strictly form the diagonal lower surface of the square head of the driving screw. Therefore, the manufacturing cost of the connecting screw can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of a part of a screw construction tool equipped with the screw alignment device of the present invention, FIG. 2 is a plan view of the screw alignment device,
FIG. 3 is an end view taken along line I-1 in FIG. 2. 1... Pneumatic screw construction tool, 2... Screw alignment device,
3... Connection screw, 4... Box-shaped holder, 5... Top side, 9... Drive screw, 10... Square head, 10a...
・Opposite side part, 18... Nose part, 19... Screw feed guide plate part, 20... Rotation drive socket ;), 31...
Socket fixed position stop device, 33.! - Lower A, 34 and 38... Box-shaped holder passage groove, 65 and 39... Square head opposite side regulating surface, 36 and 40... Square head alignment guide surface.

Claims (1)

[Claims] A connecting screw in which a large number of drive screws are connected in parallel with each other with the lower part of the neck inserted into an elastic box-shaped holder and the square head protruding upward from the upper surface of the box-shaped holder. It is equipped with a rotary drive socket that stops at a fixed position to rotate the drive screw from the magazine for connecting screws of the screw construction tool, which uses a screwdriver to rotate the drive screw after driving and screw it into the adherend material. In this device, a connecting screw is attached to the upper side of at least one of the two opposing guide members each having a box-shaped holder passage groove for the box-shaped holder to pass through while being regulated. 1. A screw aligning device characterized in that an alignment guide surface is provided, and at least one of the opposite sides of the square head slides, thereby providing a square head opposite side regulating surface that prevents the driving screw from rotating.