JP3313345B2 - School bag lid stopper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a school bag lid locking device for detachably locking a school bag lid to a school bag body.

[0002]

2. Description of the Related Art Heretofore, as a locking tool for locking a lid of a school bag of this type, a locking tool utilizing the attraction force of a permanent magnet has been widely used. However, those who use this permanent magnet,
Because of the problem of easy detachment, recently, a locking mechanism called a “twist lock” that twists (rotates) with a fingertip to prevent it from coming off has been used together.

[0003] That is, in recent days, a backpack lid locking device has a permanent magnet housed in a locking body consisting of a box-shaped case body fixed to the school bag body,
A rotatable longitudinal axis locked at a predetermined rotation angle is erected so as to protrude outward from the surface of the case body, and a substantially rectangular knob portion is provided at the tip of the protruding portion of the longitudinal axis. It is attached. The locking plate fixed to the free end of the lid is made of a magnetic material that is attracted to a permanent magnet, and has a rectangular window through which the knob can be inserted. When the locking plate is locked to the locking tool body, the knob is inserted through the window hole of the locking plate, and after the locking, the knob is rotated by a predetermined angle such as 90 degrees, By preventing the rectangle of the knob and the rectangle of the window hole from being coincident with each other, the locking plate body is prevented from falling off from the locking tool main body.

However, it has been pointed out that the above-mentioned magnet type locking device with a "torsion lock" is unexpectedly poor in operability for children in lower elementary schools, and there is a demand for a device which can be operated more easily. In other words, when attaching (engaging) the locking plate (the lid of the school bag), it is confirmed that the knob is at the predetermined standby rotation position, and the locking plate is sucked to the predetermined position of the locking body. In addition, a step of turning the knob is necessary, and in particular, a child with a small hand twisting and turning the knob is a complicated operation requiring a surprisingly large force. In order to attach and detach the locking plate, it is necessary to first twist the knob to a predetermined rotation angle, and then remove the locking plate attracted by the permanent magnet against magnetic force. Therefore, the twisting operation of the knob, the insertion / removal operation of the knob, and the suction /
Three steps of operations, ie, a peeling operation, are required when attaching and detaching the lock.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems, and has as its object to provide a backpack locking device that can be attached and detached with one touch. In addition, the durability, lightness, and safety are strongly required for the school bag lid locking device, and it is a matter of course that the present invention has also been made to satisfy these requirements.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a locking tool body A fixed to a school bag body.
And a locking plate B fixed to the free end side of the lid. The locking plate B has rivet holes 13, 13 at the upper portion of the plate 11 for fixing to the lid of the school bag. The locking tool main body A is provided with an insertion window hole 22 for inserting the locking plate body B at an upper portion thereof, and the insertion window is formed in a central portion thereof. A locking claw mechanism 30 for detachably locking the locking plate B in a case body 21 having an insertion guide base 27 protruding from a lower portion of the hole 22; A push-back mechanism 40 for pushing back B, and a detachment mechanism 50 for manually detaching the engagement of the engagement claw mechanism 30 are housed, and the engagement claw mechanism 30 is formed in a tubular shape having a rectangular cross section. The locking plate guide grooves 34a, 34a are provided by bending the right and left sides in a U-shape facing each other, and can be fitted into the case body 21. A fitting condition 34 None As, fitting wearing condition 34 the left and right ends are accommodated in the fitted condition 34
Projecting outwardly from the through-holes 34b, 34b provided at both side portions of the case body 21. The lower central portion expands toward the surface 28 of the case body 21 when the fitting body 34 is fitted into the case body 21. A locking claw plate 31 provided with a claw portion 31a which can be inserted into the locking window hole 12 of the locking plate B, and between the locking claw plate 31 and the fitting container 34 And a spring 32 for urging the lower side of the locking claw plate 31 toward the swelling side of the locking projection 31a.
The spring holding member 43 that can be inserted into the fitting container 34, the springs 42, 42 vertically held by the spring holding member 43, and the lower surface of the locking plate B into which the upper surface portion is inserted are received. A slider plate 41 for compressing the springs 42 when the locking plate B is pushed down and lowered when the locking plate B is inserted.
The attachment / detachment mechanism 50 is provided in the case 2
A lever plate 51 is provided between the back surface of the front surface 28 and the fitting body 34 and has an upper end pivotally secured by horizontal shafts 52, 52. A push button 53 is provided to enter into the button window hole 26 provided on the surface of the case body 21. Further, when the push button 53 is pressed at the upper and lower middle portions on the left and right sides of the lever plate 51,
A technical means is provided in which projections 54, 54 are provided to push both sides of the locking claw plate 31 back against the urging force of the spring 35.

Therefore, when the locking plate body B is inserted into the locking body A, the locking window hole 12 is provided.
The locking projection 31a is engaged therein, and the locking tool B (the lid of the school bag) is engaged with the locking tool body B (the school bag main body). When the engagement is disengaged, it is natural that the engagement is disengaged by pressing the push button 53. At this time, the locking plate B is pushed back by the urging force of the springs 42, 42. Thus, it has an action of being automatically pulled out (extruded) from the locking tool main body A, and has an action of being able to be attached and detached with a so-called one touch.

Further, in the present invention, the backpack locking device has a lever plate 51 pivotally attached to the case body 21, and a spring 32, a locking claw plate body 31, a spring holding member 43, and a spring 4.
2, 42, the fitting body 34 incorporating the slider plate 41
Is fitted to the case body 21 to complete the assembly.

Further, according to the present invention, since the insertion guide base portion 27 is provided, when the locking plate B is inserted, the tip of the locking plate B does not contact the school bag body to prevent breakage. B
Is inserted into the insertion window hole 22 easily and reliably.

[0010]

Next, an embodiment of the present invention will be described with reference to the accompanying drawings. In the figure, A is a locking tool main body, and B is a locking plate. This locking plate B is generally called "sagari" and is usually made of a metal plate material, and is attached to a free end side of a lid of a school bag (a Y-shaped or U-shaped cloth is further attached to the lid. It may be attached to this fabric.).

In the present invention, the locking plate B is
The plate 11 (a metal plate is used as in the prior art in the embodiment, but a resin plate may be used) is provided with a locking window hole 12. In the illustrated example, the shape of the window hole 12 is a straight line on the lower side and an arcuate shape on the upper side. Good thing. The upper end of the locking plate B is attached to the free end portion of the lid of the school bag. In addition, although not shown, a seat plate may be used for the above-mentioned stud attachment, and a conventionally known seat plate having a tip bent at a right angle to the thickness of the cloth of the lid of the school bag is used. it can.

Further, the locking tool body A is fixed to a school bag body such as the outer surface of the bottom surface of the school bag or the front lower portion of the school bag. In this embodiment, the locking tool body A has a substantially rectangular box face down. Case body 21 (planar substantially rectangular surface 2)
The peripheral wall 25 is continuously provided at the peripheral edge of the peripheral wall 8 at a right angle. ), And fixing tack holes 23, 23 are provided at both ends of the case body 21. Therefore, it is a matter of course that it is only necessary to insert a rivet (not shown) into the fixing rivet holes 23 and 23 to rivet and fix the locking tool main body A to the school bag main body. It is the same as in the prior art that a connecting tool for connecting the lower end of the backpack called "Dharma ring" may be attached together.

The locking tool body A of the present invention is provided with an insertion window hole 22 for inserting the locking plate B at an upper portion, and a insertion guide base 27 at a lower portion of the insertion window hole 22. A locking claw mechanism 30 for detachably locking the locking plate B in a case body 21 protruding therefrom, and the locking plate B inserted
A push-back mechanism section 40 for pushing back and a detachment mechanism section 50 for manually detaching the engagement of the engagement claw mechanism section 30 are housed.

The case body 21 is provided with an insertion window hole 22 for inserting a locking plate B, which is most clearly shown in FIG. Is inserted into the case body 21 (locking device main body A) through the insertion window hole 22.

The insertion guide base 27 is provided with an insertion window hole 22 for inserting the locking plate B of the case body 21 of the locking tool main body.
At the bottom (in the depth direction of FIG. 1). For the child, the operation of inserting the locking plate B into the insertion window hole 22 is complicated, and the vicinity of the insertion window hole 22 of the school bag body is often damaged by the collision of the tip of the locking plate B. It is easy to do. In view of this, an insertion guide base 27 for protecting this part of the school bag body and for easily inserting the locking plate B into the insertion window hole 22 is provided.

It is sufficient that the upper surface of the insertion guide portion 27 is adapted to one side of the insertion window hole 22.
As shown in the example of the drawing, when the width is wider than the insertion window hole 22 and the portions projecting to both sides are raised by one step, the locking plate B can be guided more reliably.

The locking mechanism 30 is formed in a tubular shape having a rectangular cross section, or is bent in a U-shape on both left and right sides to provide locking plate guide grooves 34a, 34a. And a through-hole 34 which is housed in the fitting body 34 and has left and right ends provided at both side surfaces of the fitting body 34.
b, 34b, projecting outward from the lower side, and the center of the lower side is the fitting body 3
4 is swelled toward the surface 28 of the case body 21 when it is fitted into the case body 21, and the locking window hole 1 of the locking plate body B is formed.
2, a locking claw plate 31 provided with a locking projection 31 a that can be engaged therein, and the locking claw plate 31 inserted between the locking claw plate 31 and the fitting body 34. The lower side of the locking projection 3
1a and a spring 32 that urges the bulging side.

The fitting body 34 includes a locking mechanism 30 and
It is for accommodating with the push-back mechanism section 40 described later, and also serves as an insertion guide path of the locking plate B, and is formed in a tubular shape having a rectangular cross section, or is bent in a U-shape in which both right and left sides are opposed to each other. The locking plate guide grooves 34a, 34a are provided so that the locking plate B can be inserted and removed through the locking plate guide grooves 34a, 34a.

The fitting body 34 is formed of the case body 21.
In this embodiment, the case body 21 is made of synthetic resin, and a reinforcing rib 24 is provided in addition to the peripheral wall 25 described above.
A part of 4 is used as the fitting ribs 24b, 24b of the fitting body 34, and is used together with a part of the peripheral wall 25 so that the fitting body 34 can be fitted inside. When the fitting body 34 is fitted into the case body 21, the upper end opening is located immediately below the insertion window 22 of the case body 21,
It goes without saying that the locking plate B inserted into the insertion window hole 22 is inserted into the fitting container 34.

The locking mechanism 30 housed in the fitting body 34 is composed of the locking claw plate 31 and the spring 32 as described above. The displacement is regulated by the fitting ribs 24b, 24b in the left-right direction in a state of being loosely inserted into the through-holes 34b, 34b, but can be moved with a large margin in the front-rear direction. The lower side of the locking projection 31a is swelled as described above, but the upper side is formed as an inclined surface that is sequentially flat, and the leading end of the locking plate B into which the inclined surface is inserted comes into contact. The locking claw plate 31 is pushed back against the urging force of the spring 32 in accordance with the insertion. In addition, reference numeral 35 in FIG.
One end is engaged in the engagement recess 35 so as not to be displaced, and is urged to mainly push out the lower side of the locking claw plate 31.

The push-back mechanism 40 includes a spring holding member 43 that can be inserted into the fitting body 34,
The springs 42, 42 held in the vertical direction by the spring holding member 43, the receiving surface portion 41a for receiving the lower surface of the locking plate B into which the upper surface is inserted, and the receiving plate 41 are pushed down by the insertion of the locking plate B. The slider 42 is configured to compress the springs 42 when descending.

The spring holding member 43, the springs 42 and 42, and the slider plate 41 are all fitted into the fitting body 3.
The slider plate 41 is moved up and down to guide the spring holding member 43 and the fitting container 34 as a guide. That is, the spring holding member 43
Is constituted by a pair of vertical cylinders having an open front surface and an upper surface. The slider plate 41 is located between the front side of the spring holding member 43 and the front surface of the fitting body 34, and the rear side of the slider plate 41. The legs 44, 44 protruding from the spring holding member 43 have a shape capable of moving up and down in the above-mentioned cylinder. The receiving surface 41a of the slider plate 41 is always pressed against the above-mentioned locking projection 31a.

The attachment / detachment mechanism 50 is located between the back surface of the front surface 28 of the case body 21 and the fitting body 34, and has an upper end pivotally secured by horizontal shafts 52, 52. The lower part of the lever plate 51 is provided with a push button 53 which enters the button window 26 provided on the surface of the case body 21. Are provided with projections 54, 54 that push back both sides of the locking claw plate 31 against the urging force of the spring 35 when the push button 53 is pressed.

The lever plate 51 may be pivotally attached to a fixed position as appropriate. In the present embodiment, shaft portions 52, 52 are provided on both sides of the upper portion of the lever plate 51, and the shaft portions 52, 52 are provided. It is engaged with the pivoting ribs 24a, 24a and pivoted (the front side in FIG. 4 is closed by the school bag body). Further, the tips of the projections 54, 54 are in contact with the portions projecting outward from the through-holes 34b, 34b on both sides of the locking claw plate 31, and the lever plate 51 is connected to the spring 32. And push button 53 is button window hole 2
6, in other words, the lower part of the lever plate 51 is urged in a direction of being pressed against the inner surface of the case body 21.

Therefore, according to the present invention, when the locking plate B is inserted into the locking tool main body A through the insertion window hole 22, its tip is inserted into the fitting body 34, and the locking claw plate 31 is moved by the spring. The slider plate 41 is pushed back against the urging force of 32, and then the slider plate 41 is pushed down while compressing the springs 42,42.
When the locking plate B is inserted to a predetermined position,
The position of the locking window 12 matches the position of the locking projection 31 a, and the locking projection 31 a is engaged in the locking window 12 by the urging force of the spring 32. Therefore, in this state, the locking plate B is locked by the locking tool body A and cannot be removed.

Therefore, in order to remove the locking plate B,
The push button 53 is pressed. Then, the lever plate 51 swings, the protrusions 54 push the locking claw plate 31 back, the engagement of the locking protrusion 31a is detached, and the locking plate B is pulled out by the springs 42, 42. The locking of the locking plate B (the lid of the school bag) can be performed with a single touch.

[0027]

According to the present invention as described above, it is possible to provide a school bag lid stopper which can attach and detach the school bag lid to and from the school bag body with one touch.

Further, according to the present invention, both the locking plate B and the locking tool main body A have a small number of protrusions, and even if the locking plate B is stepped on the floor or the school bag is dropped on the foot. It is also possible to provide a school bag lid locking device which is less likely to be injured.

Further, the present invention can provide a school bag lid locking device which has a small number of components as described above, can be reduced in weight, is less likely to break down, and has excellent durability.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a school bag lid locking device of the present invention.

FIG. 2 is a front view of a locking plate used for the school bag lid locking device of the present invention.

FIG. 3 is a plan view of a locking tool main body of the school bag lid locking tool of the present invention.

FIG. 4 is an exploded perspective view of components of an internal mechanism.

FIG. 5 is a rear view of the locking device main body with the components of FIG. 4 removed;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Plate body 12 Locking window hole 13 Tack hole 21 Case body 22 Insertion window hole 24b Fitting rib 24 Reinforcement rib 25 Peripheral wall 26 Button window hole 27 Insertion guide stand 30 Locking mechanism 31 Locking claw Plate 31a Locking projection 32 Spring 32 Engagement recess 34a Locking plate guide groove 34 Fitting body 34b Extrusion window hole 35 Spring 40 Push-back mechanism 41 Slider plate 41a Receiving surface 42 Spring 43 Spring holding member 50 Detachment mechanism 51 Lever plate 52 Shaft part 53 Push button 54 Projection part A Locking body B Locking body

Claims (1)

(57) [Claims] An engaging body (A) fixed to a school bag body and an engaging plate (B) fixed to a free end side of a lid.
The locking plate (B) is provided with tack holes (13, 13) at the upper part of the plate (11) for fixing to a lid of a school bag, and a locking window hole is provided at a central portion. The locking tool body (A) is provided with an insertion window hole (22) for inserting the locking plate (B) at an upper portion, and the insertion window hole (22) is provided. ), A locking claw mechanism (30) for detachably locking the locking plate (B) is inserted into a case body (21) having an insertion guide base (27) protruding therefrom. A push-back mechanism (40) for pushing back the locking plate (B) and a detachment mechanism (5) for manually detaching the engagement of the engagement claw mechanism (30).
0), and the locking claw mechanism (30) is formed in a tubular shape having a rectangular cross section, or is bent in a U-shape on both left and right sides to face each other, and the locking plate guide grooves (34a, 34a). And a fitting body (3) adapted to fit into the case body (21).
4) and both right and left ends which are housed in the fitting body (34) are projected outwardly through the through-holes (34b, 34b) provided on both side portions of the fitting body (34), and the center of the lower side. The part bulges toward the surface (28) of the case body (21) when the fitting body (34) is fitted into the case body (21), and is used for locking the locking plate body (B). A locking claw plate (31) having a claw portion (31a) that can be engaged in the window hole (12), and an interposition between the locking claw plate (31) and the fitting container (34). The lower side of the inserted locking claw plate (31) is inserted into the locking projection (3).
1a) and a spring (32) biasing to the bulging side, wherein the push-back mechanism (40) comprises the fitting body (34).
A spring holding member (43) that can be inserted into the inside, a spring (42, 42) vertically held by the spring holding member (43), and a lower surface of the locking plate (B) into which an upper surface portion is inserted. A receiving surface portion (41a); and a slider plate (41) for compressing the springs (42, 42) when the locking plate (B) is pushed down and lowered by being inserted. The mechanism portion (50) is located between the back surface of the front surface (28) of the case body (21) and the fitting body (34), and has its upper end pivoted by the horizontal shaft portions (52, 52). Lever plate (51).
The lower part of 1) is provided with a push button (53) which enters a button window (26) provided on the surface of the case body (21). Are provided with projections (54, 54) which push back both sides of the locking claw plate (31) against the urging force of the spring (35) when the push button (53) is pressed. School bag lid locking device.