JPH0123283Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to a slider for opening and closing a fastener provided at the opening of a synthetic resin bag or the like.

<Prior art> As shown in FIGS. 1 and 2, a fastener provided at the opening of a bag body 1 is used as a slider for opening and closing the male and female claw fasteners provided at the opening of a synthetic resin bag body. 2 is disclosed, for example, in US Pat. No. 3,324,520. This product has a tightening part that holds the fastener 2 in engagement, and a fastener 2 attached to this tightening part.
A guide part for guiding the fastener, and fingers 4 for separating the engaged fastener are provided in front of the guide part with a gap 5 between them.

The slider 3 with this structure not only opens and closes the fastener 2 by sliding on the fastener 2, but also opens and closes the fastener 2 by sliding on the fastener 2.
As shown in the figure, when the fastener 2 is fully opened, the slider 3 can be freely attached and detached by positioning the gap 5 outside the bag body 1 from the opening end of the bag body 1 and inserting and removing the fingers 4. It is.

By the way, according to the conventional slider 3 mentioned above,
The finger 4 has a curved structure that protrudes forward from the top of the slider body, just like an elephant's trunk. Therefore, at the closed end of the fastener 2, the finger 4 that protrudes forward from the slider body having the tightening portion is in front, and at the end of the opening of the bag body 1, the fasteners 2 in front and behind the finger 4 do not engage with each other, and the bag body There was a drawback that there was a gap that communicated between the inside and the outside.

<Purpose of the Invention> The present invention is intended to eliminate the drawbacks of the slider provided with the fingers described above, and to ensure that the fastener is guided when the slider slides.

<Structure of the invention> The present invention maintains the mutual engagement of the male and female claws in a slider body that slides over a synthetic resin fastener consisting of male and female claws that engage with each other. A tightening part, a guide part for guiding the male and female nails to the tightening part, and a finger for separating the interlocking male and female nails with a gap in front of the guide part, The present invention provides a slider for a fastener having a structure in which an extending part is formed in the upper part of the slider body and projects further forward than the finger position, and this extending part is provided with a guide side wall that is continuous with the guide part. .

<Embodiments> Examples of the present invention will be described below with reference to FIGS. 4 to 6. Reference numeral 3 denotes a slider, which includes a tightening part 6 that holds the fastener 2 in engagement with a male claw and a female claw, a guide part 7 that guides the fastener 2 to this tightening part 6, and a slider that engages in front of the guide part 7. It has fingers 4 for opening the fasteners 2 that have been fitted.

In the slider 3 having such a configuration, an extending portion 8 projecting upward and forward from the position of the finger 4 is formed integrally with the slider body. Therefore, the finger 4 will be provided on the extension part 8. This extension portion 8 is provided with a guide side wall 9 that is continuous with the guide portion 7 . Further, both sides of the lower end of the finger 4 form a rounded semicircular arc surface 4a. 5 indicates a gap behind the finger 4.

According to the present invention, when the slider 3 slides, especially when sliding in the direction of engaging the fastener 2, as shown in FIGS. 4 and 5, the upper end of the opening of the bag body 1 The guide side wall 9 formed on the extending part 8 acts to positively guide the fastener 2 to the guide part 7 of the slider 3, thereby making the fastener 2 even more smoothly and securely interlock.

Furthermore, as shown in FIG. 4, at the closed end of the fastener 2, the extension part 8 is located at the end of the bag body 1, and the opening of the bag body 1 cannot be engaged due to the presence of the fingers 4. The gap at the end of the extending part 8
It is something to block.

Also, both sides of the lower end of the finger 4 have semicircular arc surfaces 4a.
Therefore, when the slider 3 slides, the sliding contact with the film surface of the bag body 1 is made smooth, the film surface is not damaged, and the durability of the bag body 1 is ensured. . In addition, the slider 3 can be attached to and detached from the fastener 2 by making the gap 5 between the main body of the slider 3 and the finger 4 appropriate in the front and back and up and down directions.

<Effects> As described above, the present invention improves the occlusion of male and female nails by forming a gap in front of the guide part that guides the male and female nails in the tightening part of the fastener that causes the male and female nails to engage. In a slider that is detachably attached to a fastener having fingers for pulling apart, an extension portion protruding forward from the finger position on the upper part of the slider body where the fingers are formed;
Since this extension part is provided with a guide side wall that is continuous with the guide part, when the fastener is closed after moving the slider to the end of the fastener, the male and female parts are forced to form at the end of the fastener due to the fingers. The non-occlusal opening is closed as much as possible by the extension portion and the guide side wall to suppress contamination and scattering of stored items due to dust.

In addition, the guide side wall actively guides the guide part during the closing operation of the fastener, ensuring smooth and reliable occlusion of the fastener, and preventing the slider from tilting when sliding, ensuring stable sliding operation. It has advantages such as:

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional slider, Figure 2 is a perspective view of the slider in use when attached to a bag body,
FIG. 3 is a perspective view showing the slider in a detached and attached state, FIG. 4 is a side view of the slider according to the present invention, FIG. 5 is a front view, and FIG. 6 is a bottom view. 1... Bag body, 2... Fastener, 3... Slider, 4... Finger, 6... Tightening part, 7...
Guide portion, 8... Extension portion, 9... Guide side wall.

Claims (1)

[Scope of utility model registration request] In a slider body that slides over a synthetic resin fastener consisting of a male claw and a female claw that engage with each other, a tightening portion that maintains the mutual engagement of the male claw and the female claw; A guide part for guiding the male and female claws is provided in the slider body, and a finger for separating the interlocking male and female claws with a gap in front of the guide part. 1. A fastener slider comprising: an extending portion projecting further forward than a position; and a guide side wall continuous to the guide portion provided on the extending portion.