JPH0342002Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a back locking structure for a bra fastening strap.

BACKGROUND OF THE INVENTION In most cases, brassieres are worn with fastening straps connected or engaged at the back.

Problems to be Solved by the Invention However, when putting on a brassiere, one has to put one's hands behind one's back and tighten the straps, making it difficult to put on and take off easily and quickly.

In particular, when engaging the hook-and-eye tape, it is very difficult to position the end of the fastening string at the desired location, and it is also difficult to remove it.

Means for Solving the Problems The present invention was developed in view of the above-mentioned points, and the central portions of the straps on both sides of the bra are of different polarities and are of different polarities. Attach or magnetize the magnet bodies facing each other so that the upper and lower sides have opposite polarities, and attach a predetermined sawtooth shape or the like to the clamping part of these magnet bodies or the magnetized part. and a locking part having a trough or crest at the center and a ridge or trough at both upper and lower sides so as to be freely engageable. The back of the string provides a locking structure.

Example The present invention will be explained below based on examples.

1 to 4 show an embodiment of the present invention.
At both ends of the fastening string 2 that is fastened on the back side of the brassiere 1, as shown in Figs. The magnet bodies 3 and 4 are integrally attached. As shown in FIG. 1, the magnets 3 and 4 have, for example, an S magnetic pole on the outer surface side of one end of the fastening string 2, and an S magnetic pole in the center thereof with a width approximately half that of the fastening string 2.
N magnetic poles with half the width are arranged side by side on both upper and lower sides, N magnetic poles of different polarity with the same width as above are placed on the inner side of the other end, and N magnetic poles with different polarities are arranged on the inner side of the other end and have the same width as above, and on both upper and lower sides. S magnetic poles with different polarities are arranged in parallel in different widths, so that the magnet bodies 3 and 4 can be freely attracted and engaged. As shown in FIG. 1, these magnet bodies 3 and 4 have a locking part 5 and a locked part 6 with a central part as a trough or a crest, and upper and lower both sides thereof as a crest or a trough. It has a chevron-shaped shape. Then, as shown in FIG. 2, a locking part 5 and a locking part 6 are provided in a sawtooth shape so as to hook each other at a predetermined interval, and engage the magnets 3 and 4 so as to bite into them slightly. This allows the fastening string 2 to be fastened. The outer periphery of the magnet attaching portion at the end of the fastening string 2 may be coated with a thin magnetic sealing material if necessary.

Function: To wear such a brassiere as shown in Figure 3, hold both ends of the fastening string with one hand, wrap them around your back, and clasp both hands together. The magnets of different polarity at the center of each magnet body and the magnets of different polarity at both sides attract each other, and are automatically positioned so as to overlap in a straight line in the center, and can be joined by attraction. . Even if you release your hand, the fastening string will maintain its connection due to the magnetic force of the magnet, and even if you pull the bra,
The magnets at both ends naturally locate and engage in the center due to their chevron shapes, and the sawtooth-shaped locking part of the magnet and the locked part firmly engage, resulting in magnetic coupling. It can be firmly fastened even if the

In particular, since the locking part and the locked part are shaped like acute serrations, they bite into each other and do not come apart.

On the other hand, when removing the brassiere,
Turn your hand to the back as shown in the figure, and slightly twist the magnet body at the end of the tightening cord. As shown in Figure 1, the magnetic pole in the center of one end and the magnetic poles on both sides of the other end will separate. Because they have the same polarity, they repel each other and the adsorption force becomes weaker.
The magnetic coupling can be easily released and it can be easily removed.

Therefore, the fastening strap can be very easily and quickly engaged and removed, and the brassiere can be attached and detached without having to be attached or detached as in the conventional case.

In the above embodiment, the magnet bodies include an S magnetic pole body and an N magnetic pole body.
Although the magnetic pole bodies are arranged side by side, they can also be magnetized and arranged integrally. Also,
The magnetic pole width of the magnet varies depending on the type of brazier, etc.
It can be changed as appropriate, such as by making the center part wider.

In addition, regarding the arrangement of the magnets, instead of attaching rectangular magnets integrally as described above, narrow-width magnets can be attached discretely as appropriate, and magnets can also be magnetized. Furthermore, as shown in FIG. 5, the magnet body can be covered with a thin metal material such as stainless steel for reinforcement.

Although the magnets were made of strong magnetic alnico magnets and rare earth magnets, ferrite magnets can also be made of other alloy magnets.

Effects of the invention As described above, in the present invention, even though the bra's fastening strap is engaged and released from the back side, when both ends of the bra's fastening strap are brought together on the back, the middle part and middle part of the bra fastening string are , both side parts can be attached to each other by adsorption. When the bra fastening string is pulled, the magnets at both ends of the fastening string are naturally located in the center of the fastening string due to the chevron-shaped locking part and the locked part. It has the excellent effect of being able to engage and tighten without slipping or coming off.

[Brief explanation of the drawing]

Figures 1 and 2 are a front view and a side view of the end of the fastening cord of the present invention, Figures 3 and 4 are rear views for explaining the state in which the same brassiere is worn, respectively, and Figure 5 is a magnet of the same as the above. FIG. 7 is a side cross-sectional view of another embodiment of the body. 1... Brazier, 2... Tightening string, 3, 4...
Magnet body, 5...locking part, 6...locked part.

Claims (1)

[Scope of Claim for Utility Model Registration] At both ends of the fastening strap for fastening on the back side of the bra, the center portions of each end are of different polarity and the upper and lower sides are of opposite polarity. Attach or magnetize magnet bodies facing each other, and attach or magnetize the clamping parts of these magnet bodies or magnetized parts with predetermined sawtooth-like locking parts and locked parts, with the center part having a valley part. Or, a back locking structure for a bra fastening strap, characterized in that the upper and lower sides thereof are provided in a chevron-shaped shape with crests or troughs so as to be freely engageable.