School bag cover buckle

Abstract

A fastener (10) for the cover of a satchel, which is obtained from a male part (11) and a female part (12) that are provided on the satchel body (2) and an extension (5) of a flap cover (3), and which fastens the flap cover (3) to the satchel body (2) by the male-female connection of the male part (11) to the female part (12). The male part (11) is provided with an n-pole magnet (24) and has a protruding part (21), the circumferential surface of which is provided with a groove (22). The female part (12) comprises a casing (26) with a recessed part (27) having a slightly larger diameter than the protruding part (21), and a sliding member (29), which forms the bottom surface of the recessed part (27), is provided with an s-pole magnet (34) on the bottom surface thereof, slides as a result of a pressing force (A), and is provided with a catch (32a) that is energized in the direction opposite to the direction in which the pressing force (A) is applied and engages with the groove (22). The male part (11) and the female part (12) are drawn together by a magnetic force when the male-female connection is occurring. When the male-female connection is released, the sliding member (29) moves and said attracting magnetic force is severed.

Description

technical field [0001] The invention relates to a cover buckle of a schoolbag which locks a folding cover through the connection of an outer convex part and an inner concave part. In addition, in this instruction manual, the lid buckle on the school bag is taken as an example for description below. Background technique [0002] As is well known, a school bag includes a substantially rectangular bottomed cylindrical school bag body, and a hinged lid covering the upper opening and part of the outer periphery of the school bag body. The schoolbag body is provided with a strap for the user to carry the schoolbag. In addition, the foldable cover is provided with an extension extending from the lower portion of the foldable cover. The extension part is provided with an inner concave part constituting the buckle of the cover. Moreover, the school bag body is provided with an outer convex portion that together with the inner concave portion constitutes a cover buckle. In the lid...

AI Technical Summary

Problems solved by technology

[0011] However, in the above-mentioned conventional schoolbag lid clips (the above-mentioned Patent Documents 1 to 3), there are disadvantages such as complicated structure, large number of parts, and heavy weight due to the use of many metal parts.

Moreover, when connecting the outer convex part and the inner concave part, it is necessary to turn the operation knob to fix the outer convex part and the inner concave part, and when the connection is released, it is necessary to pull the outer convex part and the inner concave part drawn by the magnetic force apart after turning the operation knob. operation, poor operability

This kind of poor operability especially increases the burden on handicapped people, etc.

[0012] Moreover, even in Figure 7 , Figure 8 In the coupling module as shown (the above-mentioned Patent Document 4), it is necessary to rotate the closing part (the coupling module 101 ) serving as the operation part by about 120° when the coupling is released. There is room for improvement in operability

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