JPS6223978Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lid fastening device for bags such as school bags. Conventional lid fastening devices for school bags, etc.
Insert the rotation locking metal fitting provided on the locking metal fitting attached to the school bag body side into the hole provided in the locking plate at the tip of the mounting band, and rotate the locking metal fitting to lock it. It was a time-consuming process.

This invention improves on this and provides a device for locking the lid of bags such as school bags that can be attached and detached with a single touch.

The lid fastening device of this invention has a tongue that is fastened to the lid plate of bags such as school bags, a fixing plate that is fixed to the main body of the bag and into which the tongue is inserted, and a base that is attached to the fixing plate. a base having a pair of side parts facing away from the base and rising in a direction away from the main body; a latch part for a tongue lock rotatably supported on both sides of the base; and a tongue lock position; It consists of a latch member that is biased towards the latch member and a push button that releases the lock of the latch member.

According to this invention, the tongue inserted into the fixing plate is supported on both sides of the base, and is automatically engaged with the latch member biased toward the tongue lock position at a predetermined position to be locked. On the other hand, by operating the push button against the biasing force, the latch member is released from the engagement position with the tongue and the lid stop is released.

To explain the drawings, Fig. 1 shows an example of a conventional lid fastening device for school bags, etc., in which the fixing plate A attached to the school bag body has screw holes 1,
It is attached to the main body by 1'. 2 is a bulge. 3, 4, 5, and 6 indicate magnet attraction pieces. On the other hand, on the lid side, there is a hanging plate C made of magnetic material at the tip of the mounting band D attached to the lid.
It is attached by pressing on the mounting band. The locking plate has a fitting hole 20 into which the knob 7 of the locking body B rotatably provided in the center of the fixed plate A is fitted.
20' is open.

To close the lid of a school bag, etc., fit the knob 7 of the fixing plate into either the fitting hole 20 or 20' of the hanging plate C, and attach the locking plate A to the magnetic attraction pieces 3, 4, 5, 6 and turn knob 7 90 degrees to lock the locking plate. To remove it, turn the knob 7 and pull the retaining plate against the attractive force of the magnet, which is a complicated and time-consuming operation.

This invention solves this drawback and provides a lid locking device that can be opened and removed with a single touch.
FIG. 2 is an external view of the lid fastening device of this invention, in which the tongue 40 is supported on the mounting band 32 attached to the tip of the lid plate 31 above the school bag body 30, and the tongue 40 is supported on the fixing plate 50 fixed to the school bag body. The tongue is inserted into the provided locking device to secure the lid. 33 is the back strap of the school bag. Further, numeral 55 is a release push button, and by pressing this button, release can be performed with a single touch.

Figure 3 shows an exploded view of the parts of the lid latching device of this invention, in which 50 is a fixing plate that is attached to the school bag body, 51 is a hollow part in which the latching device described below is housed, and 52 is a part that is attached to the school bag. This is the mounting hole for mounting. 55 is a push button,
Reference numeral 56 indicates a pushing leg for pushing a latch member, which will be described later. Reference numeral 57 indicates a rotation shaft. Reference numeral 58 indicates a finger press.

60 is a spring case, 61 is a recess for inserting a spring,
62 is a coil spring stored in the recess, and 65 is a slider, which has left and right pressing parts 66 and slider leg parts 67 that protrude below and engage with the above-mentioned spring 62. It is pushed to the left in the figure by a spring 62 via a leg 67. The rear edge 68 of the slider engages with a locking plate 41, which will be described later, and also pushes this to the left.

Reference numeral 70 is a latch member, 71 is a latch portion that bulges upward, and 72 is left and right wing pieces, which are engaged with the push leg 56 of the push button 55 described above. 7
3 indicates the leading edge of the wing, and 74 indicates the trailing edge of the wing. 80
Reference numeral 81 indicates a base, and 81 indicates a recess into which the aforementioned spring case 60, latch member 70, etc. are assembled. When the base 80 is attached to the aforementioned school bag main body 30 with the base portion 82 facing from the base portion,
It has a pair of side parts 83, 83 that stand up in a direction away from the main body. Attachment holes 84, 84 for rotatably supporting the aforementioned latch member 70 are formed in the side parts 83, 83. The aforementioned recess 81 is formed by the base portion 82 and the side portions 83, 83 of the base. Further, 75 is a conical coil spring that pushes up the latch member.

Furthermore, 40 is a tongue as mentioned above, and a hanging plate 41 having a hole 42 at the tip of the mounting band 32.
is attached.

FIG. 4 shows the assembly of the locking device, in which the latch member 70 is inserted into the recess 81 of the base 80, and the conical coil spring 75 is inserted below the latch portion 71 that bulges upward. (spring not shown) biases the latch member 70 counterclockwise about the trailing edge 74 of the wing. A push button 55 is attached above the latch member 70 so that the wings of the latch member 70 are pressed by its push legs 56, and a spring case 60 and a slider 65 are housed in the base. Then, the whole is assembled into the hollow part 51 of the fixing plate 50.

Figure 5 shows the state where the tongue is inserted into the fixing plate and locked, and when the latching plate 41 of the tongue 40 is inserted into the fixing plate (the left side of Figures 4 and 5 will be the upper side of Figure 2). ), the catch plate enters a recess 81 in the base 80 and is attached to the trailing edge 74 of the wing by a coil spring 75.
The latch member, which is biased counterclockwise around the center, moves forward while pushing downward against the spring 75, and the latch part 71, which bulges upward, touches the locking plate 4.
When the latch member reaches the hole 42 of No. 1, the latch member 71 is biased counterclockwise by the spring.
enters the hole 42, the two are locked, and the lid is fixed with one touch. The latch plate 41 is pressed by the slider rear edge 68 of the slider 65 described above, but since the latch and the latch plate are engaged in this way, the slider does not move.

FIG. 6 shows the state at the time of release, and when the finger press part 58 of the push button 55 is pressed and the push button is pushed down clockwise around the shaft 57, the push leg 56 moves against the left and right wings 72 of the latch member. is pressed to rotate the latch member clockwise about the trailing edge 74 of the wing against the force of the spring 75, so that the latch 71 is disengaged from the hole 42 in the locking plate 41. Then, since the slider 65 is pushed to the left by the spring 62 in the spring case 60 via its slider legs 67, the latch piece 41 is pushed to the left by the rear edge 68 of the slider and fixed. It acts to push it out of the board.

This invention has the above effects as is clear from the above explanation.

(1) The latch member can be made into a subunit on the base.
Assembly is easy because this subunit only needs to be attached to the fixed plate.

(2) Since the latch member is supported by opposite sides formed on the base, the latch member can be positioned reliably.

(3) Since the latch member is supported on both sides of the base, the thickness of the lid fixing device can be reduced, making it possible to make it more compact.

(4) Since the base of the base is interposed between the latch member and the main body of the bag, the operation of the latch member is not affected in any way even if the main body of the bag is deformed by the stored items.

[Brief explanation of the drawing]

Figure 1 is a diagram of a conventional lid latching device, Figure 2 is an external view of the lid latching device of this invention, Figure 3 is an exploded view of each part, and Figure 4 is an assembled diagram of the latching mechanism. , FIG. 5 shows the locked state, and FIG. 6 shows the released state. Explanation of main symbols, A...fixing plate, B...locking body, C...hanging plate, D...attachment band, E...pressing piece, 30...school bag body, 31...lid plate,
40...Tang, 41...Latching plate, 50...Fixing plate, 55...Push button, 56...Press leg, 58...
...Finger press portion, 60...Spring case, 62...Coil spring, 65...Slider, 70...Latch member, 71...Latch portion, 75...Conical coil spring, 80...Base.

Claims (1)

[Scope of utility model registration request] A tongue fixed to the lid plate of bags such as school bags, a fixing plate fixed to the main body of the bag and into which the tongue is inserted, a base attached to the fixing plate, and a base facing from the base. a base having a pair of side parts rising in a direction away from the main body;
A school bag, etc., which is rotatably supported on both sides of the base and includes a latch member having a latch portion for a tongue lock and biased toward the tongue lock position, and a push button for releasing the lock of the latch member. Lid locking device for bags.