JPS5932125B2 - Slider fitting device with automatic stop device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insertion device for inserting a slider into a fastener chain when manufacturing a slide fastener equipped with an automatic stop device.

Conventionally, as shown in FIG. 1, this type of insertion device includes a slider holder 41 that supports the lower surface of the slider S, which is provided with a groove 42 for inserting the pull tab T. The pull lever T is tilted and supported on the upper lever 43 arranged in parallel with the holder 41, and by pressing the tilted pull lever T from above with a pin 46, the stop claw in the slider S is brought to the unlocked position. There is a known device in which it is evacuated (for example, see Japanese Patent Publication No. 48-36644).

In this conventional device, as shown in FIG.
If the upper surfaces 45 and 45' of both sides of the slide fastener are used as the pan planes for crimping the top stop of the slide fastener, the slider can be inserted and the top stop can be attached in one station.

However, for this purpose, it is necessary that the width of the handle T be small.

This is because if the handle is of an extremely wide width, such as a ring type, the width of the support groove 44 must be increased accordingly, and then the upper surfaces 45 of both side walls.
The spacing between 45' becomes larger.

If this gap becomes large, the upper stopper cannot be held at an appropriate position.

That is, as shown in FIG.
At the position immediately after F and F' come out from slider S,
Since the distance between the inner edges of the fastener stringers F and F' is small, if the upper stops 47 and 47' are to be crimped and fixed at this position, the crimping punch surface of the pressing rod 43, that is, the upper surface 45.45' The spacing between the fastener stringers and the inner edge should be correspondingly small.

If this gap is too large, the fastener stringer
, it is necessary to forcibly deform F' in a large outward direction, which makes it difficult to feed the fastener stringer, and also makes it difficult to attach the top stop because an unreasonable deforming force is applied to the fastener stringer. Become.

If the distance between the caulking punch surfaces is increased, it is possible to arrange the slider holder 41 and the pull presser rod 43 side by side with a larger distance between them. The positions are far apart, and therefore the slider enters deeper into the longitudinal middle portion of the zipper chain than necessary.

Therefore, the subsequent zipper closing process (slider pulling process) will be performed on both sides.

For the reasons mentioned above, it is not possible to widen the distance between the upper surfaces 45° and 45' of the pressing rod 43, that is, the width of the support groove 44, and therefore the slider insertion device according to the prior art has a large width handle. It was not suitable for inserting the slider with the fastener chain into the fastener chain.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a slider insertion device that enables insertion of a slider having a wide-shaped handle such as a ring type.

Embodiments of the present invention will be described below based on the drawings.

1 to 5 show a first embodiment of the present invention, in which numeral 1 denotes a slider holder, which is guided by fixed blocks 2 and 3 to move up and down.

- The force fixing block 3 is inserted into the guide hole 4 formed at the bottom of the slider holder 1, and the force fixing block 3 is inserted into the guide hole 4 formed at the bottom of the slider holder 1.
A compression spring 5 is interposed between the slider holder 1 and the slider holder 1.

A concave slider accommodating portion 6 in which the slider S can be accommodated and held is formed on the upper surface of the slider holder 1.

A groove T is formed in the bottom of the slider accommodating portion 6 to allow the pull accommodating portion 8 to pass therethrough.

The pull accommodating portion 8 consists of a recess formed on one side of the slider holder 1, and preferably has an inclined surface 9 formed on the lower inner surface.

A slit 10 is formed at the rear of the handle accommodating portion 8, and a notch 11 is formed at the rear of the slit 10.

A bracket 12 is attached to the upper part of the fixed guide 2 with a screw 13.
has been fixed through.

As shown in FIG. 5, the bracket 12 is a channel-shaped block body having a rear side wall 14 and left and right side walls 15.15. 15 is the notch 11
both sides 1b of the slider holder 1 located on both sides of the
It is in contact with lb.

Further, a groove 16 is formed in the rear side wall 14.

IT is a swing lever disposed in the slit 10 of the slider holder 1, the notch 11, and the groove 16 of the bracket 12, and is supported by the left and right side walls is, is of the bracket 12 via a shaft 18.

At the rear end of this swing lever 11 there is a downwardly directed protrusion 17.
a is formed, and a tapered cam surface 17b is formed at the lower part of this protrusion 17a.

A compression spring 19 is provided between the swinging lever 11 and the earth wall surface of the slider holder cutout 11, and the swinging lever 1γ is biased in a counterclockwise direction, so that the cam surface 1γb is pressed against the slider holder 1 cutout. 11 at the lower wall corner 20.

A puller 21 of the slider S is provided at the tip of the swing lever 1γ.
The pull locking piece 23 that locks in the hole 22 of the handle locking piece 23
It is connected to the swing lever 11 by a pin 24 through a long hole 25 .

A compression spring 26 is installed between the pull locking piece 23 and the swing lever 17.

The line of action of this compression spring 26 is shifted outward from the pin 24, so that the pull locking piece 23 is
A clockwise rotational moment about 4 is applied.

A front stop press plate 2γ is provided in front of the slider holder 1 (see right side in FIGS. 1 and 2) so as to be movable up and down along a fixed guide 28.

The front stop plate 2γ has a groove 2γa in the center of the upper part, and upper surfaces 27b of both side walls of this groove 2γa serve as front stop press surfaces.

The front stop press plate 21 is raised and lowered by an interlocking mechanism 29 that is linked to the drive source of a continuous automatic finishing machine for slider fasteners, and in the raised position tightens the front stop T to the fastener chain F, and when lowered, it is engaged. Stop projection 3
0 engages with the locking protrusion 31 of the slider holder 1 to lower the slider holder 1.

32 is an upper slider holder provided above the slider holder 1, 33 is a front stop holder provided above the front stop press plate 28, and both holders 32 and -33 are attached to the shaft 34.
It is designed to swing from the horizontal position to the vertical position shown in the figure using the fulcrum as the fulcrum.

Next, the operation will be explained based on the above-mentioned configuration.

In the raised position of the upper slider holder 32 and the front stop holder 33, the slider S and the front stop T are fed from the desired feeding device, and after being clamped by the respective holders 32, 33, both holders 32, 33 are moved to the illustrated position. Rotate down until

At this time, the front stop press plate 28 is in a lowered state as shown in FIG.
is in a state of being lowered against the force of the spring 5 due to the engagement.

Further, the slider S held by the upper slider holder 32 is placed oppositely above the slider accommodating portion 6 , and its handle 21 is suspended from the groove 7 into the puller accommodating portion 8 , and the hole 22 of the handle 21 is connected to the puller locking piece 23 . It fits loosely.

In this state, since no tensile load is applied to the pull tab 21, the locking pawl 35 of the slider S is in a state of protruding into the element guide groove.

Next, the front stop press plate 21 presses the front stop holder 3 as shown in FIG.
After rising to a position close to 3, it stops.

As a result, the engagement between the locking protrusions 30 and 31 is disengaged, so that the slider holder 1 rises by the force of the spring 5 and holds the lower surface of the slider S in the slider accommodating portion 6 (see FIG. 2).

Also, as the slider holder 1 rises, the swing lever 1γ
The cam surface 17b of the slider holder 1 is pushed by the corner 20 of the slider holder 1, and the swing lever 17 is rotated clockwise against the spring 19.

As a result, the pull locking piece 23 is lowered, and by pulling down the puller 21, the stop claw 35 is retreated from the element guide groove in the slider.

In this case, the pull locking piece 23 is connected to the swinging lever IT via the elongated hole 25 with the pin 24 and the lever spring 26, so the load from the swinging lever 1γ is transferred to the spring 26 and the elongated hole 2.
5 to the pull locking piece 23.

Therefore, even if the amount of rotation of the swing lever 1γ is somewhat too large, it is absorbed by the elongated hole 25 and the spring 26, and overload is prevented from being applied to the handle.

Further, since the pull locking piece 23 is given a clockwise rotational moment by the spring 26, it is pressed and locked to the inclined surface 9 of the pull handle accommodating part 8, and thereby the handle 21 is reliably housed in the pull handle accommodating part 8. .

After the stop claw 35 passes the fastener chain F through the slider S1 and the front stop AT which have retreated from the element guide groove, the front stop press plate 21, which has been temporarily stopped, moves a short distance l from the position shown in FIG. Move up slightly, press the front stopper T, and secure it to the fastener chain F by caulking.

Subsequently, the slider holder 1 is lowered to the position shown in FIG. 1 via the front stop press plate 2T and the front stop press plate 2γ.

As the slider holder 1 descends, the swinging lever 1γ rotates counterclockwise by the force of the spring 19, and the protruding portion 1γa is locked to the bottom surface of the groove 16 of the bracket 12, reaching a nearly horizontal position, and the pull locking piece 23 is rotated counterclockwise. It rises to release the pull-down of the handle 21, and the stop claw 35 protrudes.

At the same time, the upper slider holder 32 and the front stop holder 33
' also rotates upward and clamps the next slider and front stop.

FIG. 6 shows a second embodiment of the present invention, showing a modification of the swing lever and the pull locking piece.

That is, a pull locking piece 23' is pivotally supported at the tip of the swing lever 17' with a pin 38, and a compression spring 40 is interposed between the swing lever 11' and the pull locking piece 23'. 23 is applied with a clockwise rotational moment by a compression spring 40 about the pin 38.

A stopper surface 39 is formed on the rear side surface of the pull locking piece 23', and this stopper surface 39 is locked to a stopper surface 36 of the swing lever 11'.

The swing lever 17' is urged counterclockwise by a tension spring 3T.

When the slider holder 1 rises, the corner 20 moves to the cam surface 17.
b, the swing lever 17' is rotated clockwise against the tension spring 37, and the pull locking piece 23' is thereby lowered to pull down the pull lever 21.

When a load is applied from the pull locking piece 23' to the handle 21, a counterclockwise rotational moment is applied to the pull locking piece 23', but the compression spring 40 counteracts this and pulls down the pull.

When the load applied to the pull locking piece 23', that is, the rotational moment exceeds the force of the compression spring 40, the compression spring 40 is compressed and absorbs the load.

Therefore, overload is prevented from being applied to the handle.

As described above, according to the present invention, the pull accommodating portion is made up of recesses formed on both negative sides, and the pull is housed in the pull accommodating portion by vertically hanging down. Even if the handle does not protrude in the direction of the stop press plate and therefore has a wide width, the distance between the press surfaces at the upper end of the front stop press plate should be set to an interval suitable for tightening the front stop. It is now possible to place the press plate close to the slider holder.

Therefore, when this inserting device is incorporated into a continuous automatic finishing machine for fasteners, the front stopping device can be efficiently operated at a position close to the slider.

Roughly speaking, the lever that swings as the slider holder moves up and down lowers the pull locking piece and pulls down the handle, so the raising operation of the stop claw is a holding operation of the slider holder. This is done in connection with the lifting movement and therefore no special driving force is required for raising the pawl.

Therefore, according to the present invention, it is possible to efficiently insert and insert a slider with an automatic stop device that has a specially shaped pull, for example an extremely wide pull such as a ring type, into a fastener chain, and a continuous automatic finishing machine. This has the advantage that it can be easily incorporated into.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional side view showing a first embodiment of the present invention, FIG. 2 is an enlarged sectional view of the main part of the same in an operating state, and FIGS.
The figures are respectively a front view and a rear view of FIG. 2, FIG. 5 is a sectional view taken along the line V-V in FIG. 8 is a perspective view showing an example of a conventional device, and FIG. 8 is a plan view showing the positional relationship between slider insertion and front stop attachment using the same device. 1...Slider holder, 6...Slider housing section, 8...Handle housing section, 9...
・・Slope surface, 11° 17′ ・・・Swinging lever, 2
3, 23'... Pull locking piece, 24...
Pin, 25...long hole, 26...spring,
S...slider, 21...handle, T
・・・・・・Front stop.

Claims (1)

[Scope of Claims] 1. A vertically movable slider holder, which is provided with a slider accommodating portion 6 at the top and a pull accommodating portion 8 consisting of a concave portion located below the slider accommodating portion 6 and formed on one side. 1, and a pull locking piece 23 that is swung by the vertical movement of the slider holder 1 and is located at the tip of the pull handle accommodating portion 8.
, 24 and swing levers 1γ, 17'. 2 The pull locking piece 23 is connected to the swinging lever 11 with the pin 24 through the elongated hole 25 of the pull locking piece 23, and the cover spring 26
2. The slider insertion device with an automatic stop device according to claim 1, wherein a rotational moment directed downward and toward the inner wall of the pull housing portion 8 is applied by the slider. 3. The insertion and insertion device for a slider with an automatic stop device according to claim 1 or 2, wherein the lower inner wall of the pull housing portion 8 is an inclined surface 9.