FI59326B - SKILJBART BLIXTLAOS - Google Patents

Description

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Japan-Japan (JP) U8-U81U6 (71) Yoshida Kogyo K.K., 1, Kanda Izumi-cho, Chiyoda-ku, Tokyo, Japan

Japan (jP) (72) Kihei Takahashi, Uozu-shi, Toyama-ken, Yoshitaka Higuchi, Nakanikava-gun, Toyama-ken, Japan-Japan (JP) (7U) Ruska & Co (5U) Different zipper - Skiljbart blixtläs

The invention relates to a different zipper comprising two support straps having longitudinal rows of engaging hooks at opposite edges, two slides arranged opposite each other on the rows of hook members for longitudinal movement along the hook members to engage and disengage the hook members. comprising two spaced and interconnected wings adapted to form a substantially Y-shaped guide channel passing through the body, a stop member adapted at one end of the first support strip to retain the slides on this support strip when the second support strip is completely therefrom. separately, and a pin member arranged at a respective end of the second support strip to fit it into the guide channels of each slider, the second slider being made at the end opposite the second slider by two recesses in the respective wings of the slider. a each recess is substantially trapezoidal in plan view and two tongues are formed at the respective end of the second slide, the shape of which corresponds to the shape of the recesses and which are formed on corresponding wings in the second slide.

The present invention relates generally to zippers, and more particularly to different zippers in which two support straps are made to be completely separable for use in covers and other covers. In particular, the invention relates to a zipper alignment device, in which case the zipper hook straps can be connected and disconnected very easily.

There are two known types of different zippers, one of which can only be opened at one end and the other is known as a two-way or double-acting type which allows the zipper to be opened from both ends. Zippers of the former type usually have a single slide, which is usually associated with a box and pin switch, while zippers of the latter type have two slides arranged opposite each other on rows of hook members which can be locked to each other. In both types, it is necessary that the slider and the box or two slides are in line with each other on the hook strips when fitting and removing the second support strip from the pin member guide channels.

To date, a wide variety of targeting organs have been proposed and used. For example, U.S. Patent 2,069,655 discloses a device in which a slide is provided with a U-shaped extension to fit it over portions of a box member. This size slider necessarily becomes bulky in size, uneconomical, and uncomfortable in appearance. The devices of French Patent 735,942 and U.S. Patents 2,728,125 and 3,583,053 are more or less similar in that the notch or notches and the protrusion or protrusions to be connected in the devices according to them are made at opposite ends of the slider and the box member or two slides, respectively. All of these devices are unsatisfactory because the interconnection of the notch and protrusion is too attention-grabbing, requiring unreasonable arrangements in the appearance of the slides. Further, according to U.S. Patent 2,302,239 and Japanese Patent No. 47-9338, the box member has a protruding pin portion adapted to go into a groove or grooves made inside the slide, but this arrangement is not suitable for two-way different zippers.

In view of the above-mentioned drawbacks of previously known zippers, it is an object of the present invention to provide an improved alignment device suitable for use in both two-way different zippers and standard box and pin connections, although the device is more suitable for use in zippers of the former type.

Another object of the invention is to provide an alignment device of the above-mentioned quality, whereby the handling of different zippers is simplified with respect to fitting or detaching the pin member of the second support strip of the zipper into or out of the two slides on the second support strip.

It is a further object of the invention to provide an alignment device of the above-mentioned quality which requires as little adaptation of the shape and size of the slides as possible in that the general appearance of the generally known slides is kept intact.

Yet another object of the invention is to provide an alignment device which is space-saving, inexpensive and durable and which allows the slides to be correctly and securely in line with each other after a long period of use.

The zipper according to the invention is mainly characterized in that the recesses are formed in the inner surface of each wing and taper inwards in both width and height.

According to a preferred embodiment of the invention, the alignment device for two-way type different zippers has two slides arranged opposite one another on rows of interlocking hook members, which hook members are arranged along opposite edges of the two support strips. Typically, the device includes two recesses made in the end of the second slider opposite the second slider in such a way that the recesses are substantially invisible from the outside of the slides, and two tongues made in the respective end of the second slider, the recesses accurately receiving the tongues so that the slides can be exactly in line with each other.

Other objects and advantages of the invention will become more apparent from the following description and the accompanying drawings, in which different parts are denoted by the same reference numerals and in which, Figure 1 is a perspective view of a part of a different two-way zipper according to the invention; the part with the pullers omitted and the two slides shown in alignment, Fig. 3 shows a side view, partly in section, of two slides according to Fig. 2, Fig. 4 shows two slides in the same way as Fig. 2, the slides being in the positions where the pin member is being fitted to the guide channels of the slides, Fig. 5 shows a section taken along the line VV from Fig. 4, Fig. 6 shows a section taken along the line VI-VI from Fig. 2, Fig. 7 shows a partial section of the second embodiment of the invention in the same way as Fig. 3, form and Figure 9 is a perspective view of a box member using a detachable connection of a box and a pin according to the invention.

Figures 1-6 show a different zipper according to the present invention, which is of the above-mentioned two-way type or double-acting type.

As best seen in Figure 1, the double-acting differential zipper includes two support straps 10 and 11 which support longitudinal rows of spaced apart known or suitable hook members 12 at their opposite bead edges. To allow the zipper to open at each end, two slides 13 and 14 are arranged in rows of hooks 12, which are placed opposite each other and arranged for longitudinal movement along the hook members to engage and release them in the usual way.

As can be seen from Figures 2 and 3, each of the slides 13 and 14 has a body part comprising two spaced apart wings or plate members 15 and 16. These have flanges 17 at their side edges and are connected together by a unitary neck or web 18 for spreading them. at the head 19 so that a common Y-shaped guide channel is formed through the slider. Such guide channels for the respective slides are adapted to allow rows of hook members 12 to be threaded through the slides to engage and disengage the rows. In addition, each of the slides 13 and 14 is provided with a longitudinal projection 20 on top of the upper wing 15, to which a finger piece or a puller 21 is articulated and slidably attached for handling the slides.

5 59326

Attached to the opposite edges of the respective support strips 10 and 11 are two pin members 22 and 23 at one end of the zipper. As shown in Figure 2, the pin member 23 includes an integral abutment portion 24 for restricting movement of the slider 14 at said end of the zipper and retaining the slides 1 and 14 on the support strip 11 after being completely separated from the second support strip 10. Figures 2 and 3 may be note that when fitting or removing the pin member 22 of the support strip 10 from the slides 13 and 14, the narrower end 25 of the slider 13 must be kept in push contact with the narrower end 16 of the second slider 14 so that these slides are fully aligned with each other.

In order to provide such a perfectly straight line between the slides 13 and 14, recesses 27 and 28 are provided in the inner surface of the upper wing 15 and lower wing 16 of the narrower end 25 of the slider 13, respectively. As seen in Figure 2, each recess is substantially trapezoidal in shape height (see also Figure 3). It can also be seen from the figure that these recesses 27 and 28 are open to the inner surface of the respective wings 15 and 16 of the slider 13, but not to their outer surfaces. Respectively, at the narrower end of the second slider 14 are tabs 29 and 30 of the same piece, projecting from the upper wing 15 and the lower wing 16, respectively. These tabs correspond in shape and size to the recesses 27 and 28. As can be seen from Figure 3, the tabs 29 and 30 the inner surfaces are respectively in the same planes as the upper and lower wings of the slider 14. As shown in Figs.

The operation of the diverging two-way zipper according to the invention will be explained in more detail below with particular reference to Figures 4-6.

Assume that the zipper strips are completely separated from each other and that the pin member 22 of the support strip 10 is now fitted to the guide channels of the respective slides 13 and 14 to connect the respective ends of the support strips as shown in Figure 4. First, the slides 13 and 14 are not in a straight line and can have further displaced from the plane of the support strip 11 according to Figures 4 and 5, although the tabs 29 and. 30 may be partially in the respective recesses 27 and 28 of the slider 13.

6 59326

However, when the pin member 22 is threaded through the guide channels of the slides 13 and 14, the slider 12 can be forced into a right straight line with the slider 14, since the tabs 29 and 30 of the slider 14 go into the respective recesses 27 and 28 of the slider 13. Thus, as illustrated in Figs. , the pin member 22 can be smoothly and comfortably pushed through the guide channel of the slide 13 and further into the guide channel of the slide 14 until the pin member is properly positioned therein, allowing proper engagement of the splits 12 as the slide 13 is moved away from the slide 14.

In this embodiment of the invention, it should be noted in particular that both wings of each slide 13 and 14 are provided with their own recesses 27 and 28 and tongues 29 and 30, respectively, i.e. the slides allow double engagement, so that misalignment of these slides relative to each other can be prevented. fitted to or detached from their control channels.

Figure 7 illustrates a different embodiment from Figures 1 to 6, according to which the tongues 29 and 30 protrude from the respective wings 15 and 16 of the slider and are uniform in thickness and width. In Figure 7, only one tongue 29a is shown for simplicity, as is one recess 27a in the second slide. In this case, the tongue and the recess do not thin or taper. In order to easily fit the tongue 29a into the recess 27a, its leading edges are rounded, as shown by reference numeral 31. Of course, it is clear that the second tongue is similar in shape.

Figure 8 shows another preferred embodiment of the invention, in which the tongue 29b projecting from each of the wings 15 and 16 of the slider 14 has a notch 32 made centrally at the leading edge of the tongue. Respectively, a protrusion 33 is formed in the recess 27b of each of the wings 15 and 16 of the second slider 13, which in shape and size corresponds to the notch 32 in the tongue 29b and enters this when the narrower ends 25 and 26 of the slides 13 and 14 are in contact with each other. The notch, 32 and protrusion 33 have been calculated to further ensure the correct straight line of the slides, which could otherwise be insufficient only in the presence of the recesses 27i 28 when fitting or removing the pin member 22 into the slid guide channels.

As shown in Figure 9, aspects of the invention can be applied to a different zipper, which is a common type of box and pin connection, whereby the zipper can only be opened at one end.

Claims (2)

7 59326 Figure 9 illustrates only one separate box member of a box-pin connector, but it is clear that this box member is used to replace the stationary slide 14 in the embodiment described in connection with Figures 1-6. As with the slide 14, the box member 34 has two tabs 29 and 30c, which are integral with the upper and lower plate portions 35 and 36, and their ends are located opposite the converging end 25 of the slide 13. This box member is used in connection with the slide 13 in a known manner. Although the tabs 29c and 30c are similar in shape to those shown in Figures 2 and 3, it is natural that they may also be similar in shape to those shown in Figures 7 and 8, with the recesses of the cooperating slider 13 also having a similar shape. Although the differential zipper of the present invention has been described and shown in some of its preferred embodiments, it is natural that the invention is not limited thereto. Thus, for example, in a first embodiment of the invention, the recesses 27 and 28 may be formed in the slide 14 and the tabs 29 and 30 in the slide 13 without departing from the scope of the invention. The invention may also vary in many other ways within the scope of the claims. A different zipper comprising two support straps (10, 11) having longitudinal rows of hook members (12) to be connected at opposite edges, two slides (13 »14) arranged opposite each other on the rows of hook members for longitudinal movement of the hook members to engage and disengage the hook members together, each slider having a body comprising two spaced and interconnected vanes (15, 16) adapted to form a substantially Y-shaped guide channel passing through the body, a stop member (23) arranged at one end of the first support strip (11) to retain the slides on this support strip when the second support strip is completely separate therefrom, and a pin member (22) fitted at the respective end of the second support strip (10) to fit the guide channels of each slide, the second the end of the slide (13) located opposite the second slide (14) is made of one recess (27, 28) in the respective wings (15, 16) of the slider, and each recess is substantially trapezoidal in shape as seen from above, and two tongues (29, 30) are formed in the respective end of the second slider (14). corresponding to the shape of the recesses and formed on the respective wings (15, 16) in the second slide (14), characterized in that the recesses (27, 28) are formed on the inner surface of each wing (15, 16) and taper inwards in both width and height. Zipper according to claim 1, characterized in that a notch (32) is made centrally in the front end of each tongue (29b) and in that each recess (27b) is provided with a corresponding protrusion (33) which fits into said notch. t