JP3016921U - Magnetic lock for school bag - Google Patents

Abstract

(57) [Abstract] [Purpose] When the latch plate once adsorbed to the lock body is slid and it is confirmed that the school bag cover plate is in a tightly closed state, the lock member is operated to lock it. The plate should be locked in the lock body, and the satchel cover plate should be in the most suitable closed state. [Structure] The lock main body a has a vertically elongated bulging portion 19 projectingly formed in the center of the surface of a pedestal 13 thereof in a direction orthogonal to the longitudinal direction of the lock main body a. Locking portions 26, 26 are provided on the surface of the pedestal 13.
Is formed to project. The latch plate c is the base 13 of the lock body a.
And has a vertically long shape with a width substantially the same as that of the vertically elongated bulging portion 19, and has a vertically long fitting hole 27 having a width substantially the same as that of the vertically elongated bulging portion 19 at the center thereof. The locking portions 2 of the lock body a are provided on the left and right sides of the vertically long fitting hole 27.
Locked portions 28, 28 such as through holes 28 'that engage with 6, 26
Is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a magnetic lock for a school bag comprising a lock body mounted on the outer bottom surface of the school bag body and a latch plate mounted on the free end of the school bag cover plate.

[0002]

[Prior art]

 A conventional magnetic lock for school bag of this type will be briefly described with reference to FIGS. 12 and 13. It is a lock body 1 in which a permanent magnet is housed, and a knob 2 is provided at an outer end of a shaft rod. An integrally molded T-shaped lock member 3 is rotatably planted and supported, and at the same time, the latch plate 4 is provided with two horizontally long fitting holes which are large enough to fit in the knob 2. 5, 5 are provided in two stages with a required interval.

The lock body 1 attached to the outer bottom surface 7 of the school bag body 6 is locked with the latch plate 4 attached to the free end of the school bag lid plate 8, and more specifically to the lid plate tongue piece 9 extending there. First, one of the horizontally long fitting holes 5 and 5 of the latch plate 4 is fitted into the knob 2 of the lock member 3, and the latch plate 4 is attached to the central upper surface of the lock body 1 as described above. After being attracted by the magnetic force of the magnet, the lock member 3 is rotated so that the knob 2 is orthogonal to the one laterally long fitting hole 5. As a result, the school bag cover plate 8 maintains the closed state (FIG. 13).

[0004]

[Problems to be solved by the device]

 The closed state depends on which of the two horizontally long fitting holes 5 and 5 provided in the latch plate 4 in two steps at a required interval is fitted to the knob 2 of the lock member 3. , It is determined whether it is in the most suitable state, that is, whether the school bag lid plate 8 is in a tightly closed state or a floating closed state, depending on the storage amount in the school bag body 6 and the like. Become.

Therefore, in this type of magnetic lock for school bag, when it is found that the laterally long fitting hole 5 on the appropriate side is not fitted to the knob 2 of the lock member 3, it is the knob 2 Before it is orthogonal to the horizontally long fitting hole 5, and after it is orthogonal, after rotating the lock member 3 to a position where the orthogonal state is released, the latch plate 4 is once It must be removed and reattached to another horizontally long fitting hole 5 to obtain the most suitable closed state.

It is recognized that this replacement is relatively troublesome, and it is not always confirmed whether or not the school bag cover plate 8 is in a tightly closed state. It may even remain in a floating state, and there is a tendency that the functions possessed by the magnetic lock for the school bag, which is just a corner, are not being effectively used.

The purpose of the present invention is to confirm that the latch plate slides on the lock body while the longitudinal fitting hole is fitted to the lock member, and the school bag lid plate is in a tightly closed state. When it is possible, operate the lock member to lock the latch plate to the lock body, and thereby provide a magnetic lock for a school bag that can always keep the school bag cover plate in the most suitable closed state. It is in.

[0008]

[Means for Solving the Problems]

 The magnetic lock for a school bag according to the present invention comprises a lock body a which is attached to the outer bottom surface 10 of the school bag body b, and a locking plate c which is attached to the lid plate tongue piece 11 extending to the free end of the school bag lid plate d.

The lock body a has a horizontally long shape, and the permanent magnets 23, 23 and the spring 24 are installed in the space 14 provided on the back surface of the pedestal 13 and the lock body a is provided at the center of the surface of the pedestal 13. A vertically elongated bulging portion 19 is formed so as to project in a direction orthogonal to the longitudinal direction. The shaft rod 21 of a T-shaped lock member 20 having a knob 22 at the outer end of the shaft rod 21 is rotatably inserted into the central portion of the vertically elongated bulging portion 19 so as to project into the space 14. The spring 24 is pressed against the flat side surface of the shaft rod 21, and the lower end of the shaft rod 21 is supported by the holding plate 25 covering the permanent magnets 23, 23 and the spring 24. Locking portions 26, 26 are formed on the surface of the pedestal 13 so as to project therefrom.

The latch plate c is made of a vertically elongated magnetic conductive plate material having substantially the same width as the pedestal 13 of the lock body a, and the width thereof is approximately the same as that of the vertically elongated bulging portion 19 of the pedestal 13 in the center thereof. However, a vertically long fitting hole 27 having a length longer than that of the pedestal 13 is provided. On the left and right sides of the vertically long fitting hole 27, there are formed engaged portions 28, 28 in which a plurality of through holes 28 'and the like are arranged in rows at a required interval.

In the above description, the locking portions 26, 26 projectingly formed on the lock main body a and the locked portions 28, 28 formed on the locking plate c are in a male and female reverse relationship, that is, the lock main body a. The locking portion may be formed as a recess, and the locked portion of the latch plate c may be provided so as to project.

[0012]

[Action]

 To close the school bag cover using the magnetic lock for school bags of the present invention, lock the lock plate while aligning the vertically fitting hole of the latch plate with the knob aligned with the vertically bulged portion of the lock body. By the operation of overlapping with the pedestal of the main body, the vertically long fitting hole passes through the knob and fits into the vertically long bulged part, and the locked part engages with the locking part, and the latch plate is pedestal. After making it stick to the surface of the, the latch plate is slid within the lengthwise fitting hole by holding the latch plate and pushing or pulling with the required force in the lengthwise direction. be able to. That is, when the latch plate is pushed or pulled, the latch plate floats up from the surface of the pedestal while letting the locked part fitted and locked in the engaging part come out of it, and the locked part is released. When it is engaged with the locking portion of the next stage, it descends and is adsorbed again on the surface of the pedestal.

That is, after the vertically long fitting hole is properly fitted to the knob and the vertically long bulging portion to temporarily adsorb the latch plate to the lock body, the suction position of the latch plate is set to the latch plate. With the sliding operation of, the adjustment can be changed according to the closing condition of the school bag cover, and the position can be set to the most appropriate state. Therefore, by picking the knob protruding from the vertically long fitting hole and rotating the lock member 90 ° in any direction, the knob is positioned orthogonal to the vertically long fitting hole and positioned on the surface of the latch plate. , The latch plate can be locked, and in this locked state, even if the latch plate pushes or pulls as described above, the knob pushes the latch plate and lifts it from the surface of the pedestal. There is no sliding because it cannot be raised.

【Example】

First, the first embodiment shown in FIGS. 1 to 7 will be described in detail. Reference numeral a is a lock body attached to the outer bottom surface 10 of the school bag body b, and c is a latch plate attached to the free end of the school bag lid plate d, more specifically, the lid plate tongue piece 11 extending there.

The lock body a has a horizontally long shape integrally formed of synthetic resin, and has a central body portion 15 in which a cavity 14 is provided on the back surface of a pedestal 13 formed between the left and right ridges 12, 12. On the left and right outer sides, connecting portions 16 and 16 having decorations formed on the surface are continuously formed, and on the left and right outer sides, mounting portions 18 and 18 having mounting holes 17 and 17 are continuously formed.

Reference numeral 19 denotes a vertically elongated bulge portion provided in the center of the surface of the pedestal 13 of the lock body a, which is parallel to the protrusions 12 and 12 described above, that is, in a direction orthogonal to the longitudinal direction of the lock body a. It is formed to project. Reference numeral 20 denotes a lock member that is rotatably supported at a central portion of the vertically elongated bulging portion 19. It is a T-shaped member having a knob 22 at the outer end of the shaft rod 21. It is made to plunge into the space 14 (FIG. 5). The tab 22 and the vertically elongated bulging portion 19 have similar planar shapes, but the plane size of the knob 22 is slightly smaller than that of the vertically elongated bulging portion 19.

Reference numerals 23 and 23 denote permanent magnets installed in the space 14, and 24 denotes a box-shaped spring fitted between the permanent magnets 23 and 23. The box-shaped spring 24 has left and right elastic portions locked. The lock member 20 is pressed against the flat side surface of the shaft rod 21 of the member 20 so that the lock member 20 does not idle. A pressing plate 25 covers the permanent magnets 23 and 23 and the spring 24, and supports the lower end of the shaft rod 21 of the lock member 20.

Reference numerals 26 and 26 denote locking portions projecting from the pedestal 13 at an intermediate point between the ridges 12 and 12 and the vertically elongated bulging portion 19 and have spherical surfaces.

Next, the latch plate c is made of a vertically long magnetic conductive plate material having substantially the same width as the pedestal 13 of the lock body a, and its wall thickness is higher than that of the vertically bulged portion 19 of the pedestal 13. A vertically long fitting hole 27 is provided in the center. The width of the vertically long fitting hole 27 is substantially the same as that of the vertically long bulging portion 19 of the pedestal 13, but the length thereof is approximately 1.5 times that of the pedestal 13. Reference numeral c'denotes a finger hooking piece that is formed so as to project on the tip side of the latch plate c. Reference numerals 28 and 28 denote locked portions formed laterally on the left and right of the vertically long fitting hole 27 of the latch plate c, which are a plurality of through holes arranged along the vertically long fitting hole 27 at a required interval. 28 ', 28', which can be fitted with the locking portions 26, 26. It is obvious that the locked portions 28, 28 are not limited to the through holes and may be recesses, for example.

The lock main body a having the above-described structure is attached to the outer bottom surface 10 of the school bag main body b by the required locking studs inserted into the attachment holes 17, 17 of the attachment portions 18, 18. Similarly, the retaining plate c having the above-mentioned configuration is attached to the lid plate tongue piece 11 extending to the free end of the land cell lid plate d by using the sandwiching piece 29 at the base end side.

In order to close the school bag cover plate d, first, the knob 22 of the lock member 20 of the lock body a is brought into a position where the knob 22 overlaps with the vertically long bulging portion 19, and the vertically long fitting hole 27 is fitted into the knob 22. The latch plate c is superposed on the pedestal 13 while being moved. As a result, the vertically long fitting hole 27 passes through the knob 22 and fits into the vertically long bulged portion 19, and one of the through holes 28 ', 28' forming the locked portions 28, 28 is formed. It is possible to engage the locking portions 26, 26 with each other so that the locking plate c is adsorbed on the surface of the pedestal 13 (solid line in FIG. 3, FIG. 6).

However, the latch plate c fits within the length of the vertically long fitting hole 27 by holding it and pushing or pulling it with a required force in the vertically long direction, although it is within the range of the vertically long fitting hole 27. It can slide along the vertically elongated bulge 19. That is, when the latching plate c is pushed or pulled as described above, it is lifted from the surface of the pedestal 13 while removing the through hole 28 'from the locking portion 26 (chain line in FIG. 3, FIG. 7), and the locking is performed. When the through hole 28 ′ of the next stage is engaged with the portion 26, it descends and is again adsorbed on the surface of the pedestal 13.

Therefore, after the vertical fitting hole 27 is properly fitted to the knob 22 and the vertical bulging portion 19 to cause the locking plate c to once adsorb to the lock body a, the adsorption position of the locking plate c. Can be adjusted and changed in accordance with the closing degree of the school bag cover plate d by the sliding operation of the latch plate c to position the bag in the most suitable state.

Then, the knob 22 is picked and the lock member 20 is rotated 90 ° in an arbitrary direction, and the knob 22 is positioned on the surface of the latch plate c so as to be orthogonal to the vertically long fitting hole 27. As a result, the latch plate c is locked. In this locked state, even if the latch plate c is pushed or pulled as described above, the knob 22 presses the latch plate c, so that it cannot be lifted from the surface of the pedestal 13.

8 to 11 show a second embodiment of the present invention. In the second embodiment, the relationship between the locking portion 26 provided on the pedestal 13 of the lock body a of the first embodiment and the locked portion 28 provided on the locking plate c is reversed from male to female. It is a thing. That is, in the second embodiment, a plurality of recesses 30 'are arranged in a row at a required interval on the pedestal 13 at an intermediate point between the protrusions 12 and 12 of the lock body a and the vertically elongated bulging portion 19, and the locking portion is formed. In addition to the above, the engaging portion 31 is provided with a cut-down piece in which the lateral portion is cut down to the left and right of the vertically long fitting hole 27 of the latch plate c, and the engaged portion 31 is the recessed portion 30 '. Can be fitted to. Since other configurations and operations are the same as those of the first embodiment, the same reference numerals are given to the same parts and the description thereof will be omitted in order to avoid duplication.

[0026]

[Effect of device]

 As is clear from the above description, the present invention has the following effects. After the vertical fitting hole of the latch plate is properly fitted to the knob on the lock body side and the vertical bulge, it is once adsorbed to the lock body, and then the adsorption position is set to the position of the latch plate. By sliding operation, the adjustment can be changed according to the closing degree of the school bag cover plate, and positioning can be performed at the most appropriate state. Therefore, by grasping the knob and rotating the lock member 90 ° in any direction, and by arranging the knob orthogonally to the vertically long fitting hole on the surface of the latch plate, the latch plate can be firmly attached. You can lock it.

[Brief description of drawings]

FIG. 1 is a first magnetic lock for a school bag according to the present invention.
It is a perspective view which shows the use condition of an Example.

FIG. 2 is a plan view showing separately a latch plate and a lock body which compose the magnetic lock for a school bag according to the present invention.

FIG. 3 is a plan view of a state in which the latch plate and the lock body are combined.

FIG. 4 is a back view of the lock body.

5 is a cross-sectional view taken along line I-I of FIG.

FIG. 6 is a cross-sectional view showing a locked state of the locked portion of the latch plate and the locking portion of the lock body.

FIG. 7 is a cross-sectional view showing a state in which the locked portion is detached from the locking portion and lifted up.

FIG. 8 is a plan view showing a locking plate and a lock body that constitute a second embodiment of the magnetic lock for a school bag according to the present invention.

FIG. 9 is a plan view showing a state in which the latch plate and the lock body are combined.

FIG. 10 is a cross-sectional view showing a locked state of the locked portion of the latch plate and the locking portion of the lock body.

FIG. 11 is a cross-sectional view showing a state in which the locked portion of the above is disengaged from the locking portion and lifted up.

FIG. 12 is a perspective view of a latch plate and a lock body of a conventionally known magnetic lock for school bag.

FIG. 13 is a perspective view of the above-mentioned use state.

[Explanation of symbols]

 a lock body b school bag body c retaining plate d school bag lid plate 10 outer bottom surface 11 lid plate tongue piece 13 pedestal 14 empty treatment 19 vertically elongated bulging portion 20 locking member 21 rod 23 permanent magnet 24 spring 25 presser plate 26 Locking part 27 Longitudinal fitting hole 28 Locked part

Claims (2)

[Scope of utility model registration request] 1. A horizontally elongated lock main body mounted on the outer bottom surface of a school bag main body has a permanent magnet and a spring installed in a space provided on the back surface of the base, and a longitudinal direction of the lock main body in the center of the surface of the base. A vertically elongated bulging portion in a direction orthogonal to each other is formed in a protruding manner, and the shaft rod of a T-shaped locking member having a knob at the outer end of the shaft rod is rotatably inserted through the central portion of the vertically elongated bulge portion.
The spring is pressed against the flat side surface of the shaft rod that is projected into the space, and the lower end of the shaft rod is supported by the holding plate that covers the permanent magnet and the spring, and is engaged with the pedestal. The locking plate is formed by projecting and the latch plate attached to the lid plate tongue extending to the free end of the school bag lid plate is made of a vertically elongated magnetic conductive plate material with almost the same width as the pedestal of the lock body. There is a vertically long fitting hole in the center of which the width is almost the same as the vertically long bulging portion of the pedestal, but the length is longer than the vertically long bulging portion, and the vertically long fitting of the latch plate is provided. For the satchel, which is provided with a locked portion formed on the left and right sides of the hole by arranging through holes and the like that are fitted and locked in the locking portion of the lock body at a required interval. Magnet lock. 2. A horizontally elongated lock main body attached to the outer bottom surface of the school bag main body has a permanent magnet and a spring internally provided in a space provided on the back surface of the base, and a longitudinal direction of the lock main body at the center of the surface of the base. A vertically elongated bulging portion in a direction orthogonal to each other is formed in a protruding manner, and the shaft rod of a T-shaped locking member having a knob at the outer end of the shaft rod is rotatably inserted through the central portion of the vertically elongated bulge portion.
The spring is pressed into contact with the flat side surface of the shaft rod protruding into the space, and the lower end of the shaft rod is supported by the holding plate covering the permanent magnet and the spring, and the left and right sides of the pedestal are supported. On both sides, a plurality of recesses are formed in rows to form a locking part, and a latch plate attached to the lid plate tongue extending to the free end of the school bag lid plate is used as a base for the lock body. It is made of a vertically long magnetically conductive plate material having substantially the same width, and in the center thereof, there is provided a vertically long fitting hole having a width substantially the same as that of the vertically long bulging portion of the pedestal, but having a length longer than that of the pedestal, and A magnet for a school bag, which is formed on the left and right sides of a vertically long fitting hole of the latch plate so as to project a locked portion to be fitted and locked to the locking portion of the lock body. Tablets.