JPH0321410Y2 - - Google Patents

Description

[Detailed explanation of the invention] This design has a box lid whose back edge is hinged to the back edge of the box body.The box lid is formed into a hollow sealed chamber, and a puzzle-style maze in which steel balls roll is created in the sealed chamber. The present invention relates to a tactile lock in which a steel ball is moved to locate and unlock a lock-opening device provided at a specific position in a labyrinth.

B. Purpose of the invention There are various types of locks that use tactile sensation, such as those that use sound, or locks that use electricity or magnetism. The students are interested in the safety of locks and the unlocking operation by rolling a formula maze and finding and unlocking the unnoticeable unlocking device part installed at a predetermined position in the maze based on the movement state of the steel ball. It was done for the purpose of giving.

(b) Composition of the main proposal If the main proposal is established by an example shown in the drawings,
The back edge of a box lid 3, which has a hollow sealed chamber 2 formed on the inside, is hinged to the back edge of the box body 1, and a notched through hole 5 is provided at a suitable position in the front end of the box lid bottom plate 4. The upper end of the elastic upright plate 7 is fixed to the bottom plate 6 in the box body 1. The upper end of the key member 10, which has a removable locking pawl 9 at the front of the lower end, is pivotally supported on a support shaft 11, and the coil spring 10a wound around the support shaft moves the lower part to the rear side when received. Immediately after the key member 10, a lever-like lever is formed, the front end of which is bent downward, and protruding pieces 12 protruding from the front surface of the bent lower end are brought into contact with abutting pieces 13 at both ends of the back side of the key member 10. The actuating plate 14 is pivoted on both sides of a bearing piece 15 provided inside the box lid, that is, inside the sealed chamber 2, by a spindle 16, and the front end is pivoted on the outside of one of the bearing pieces 15 by a spindle 17. At the same time as the supported movable plate 18 is installed, the rear part is moved below the actuating plate 14 and placed along one side of the actuating plate 14, and the locking piece 19 provided at an appropriate position on the upper edge of the movable plate is moved. , is locked to the side edge of the actuating plate 14, and the movable plate 1
A beard spring 20 wound around the support shaft 17 of No. 8 keeps the locking piece 19 locked at all times.
Inside, a steel ball 21 is arranged, and the rolling path of the steel ball is formed into a puzzle-like maze shape with several guide plates 22. by a spring or as shown;
The steel ball is tilted backward and downward so that the distance from the bottom plate 4 is narrower than the diameter of the steel ball, and the steel ball enters the lower side of the actuating plate from the front side of the actuating plate 14 and pushes the movable plate 18 outward. When the locking piece 19, which is opened and is locked to the side edge of the actuating plate 14, is released from the side edge, the rear part of the actuating plate is pushed up by the steel ball, and the front end of the actuating plate is thereby pushed up. The protruding piece 12 provided is removed from the abutting piece 13 provided on the back of the key member 10. This releases the restriction on the key member 10, so that by placing a hand on the front side of the box lid and pushing it up, the box lid can be opened.

Since the present invention is constructed as described above, one steel ball 21 having the required outer diameter is accommodated in the sealed chamber 2 of the box lid 3 so that it can roll freely, and the box lid 3 is placed over the box body 1. The locking claw 9 provided on the front side of the member 10 descends while pushing the elastic upright plate 7 slightly forward and bending it.
When it matches the position of the keyhole 8, it engages with the keyhole 8, thereby locking the box lid to the box body.

To open the locked edge of the box, hold the box in your hand and move the box forward, backward, left and right, and let the steel balls roll freely along the maze-like path. While observing the position, gently tilt the box body to the desired state, and operate the steel ball so that it is transferred to the lower side of the actuating plate 14, and the steel ball is transferred to the lower side of the actuating plate 14 and is on the side. When the movable plate 18 is pushed open from the position shown by the solid line in FIG. 3 to the position shown by the chain line,
The locking piece 19 that was locked to the edge of the actuating plate 14 releases the actuating plate from resting, so the rear of the actuating plate 14 is pushed up by the steel ball, and the front end of the actuating plate becomes the fourth position. The protruding piece 1 descends as shown by the chain line in the figure.
2 is detached from the abutting piece 13 on the back side of the key member 10, so the lower part of the key member 10 rotates a little rearward due to the action of the coil spring on the support shaft 11, and the locking pawl 9 on the front surface rotates slightly. escapes through the keyhole 8, and the box lid is therefore unlocked, allowing the box lid to be opened directly. Once the box lid is opened, the actuating plate and movable plate 18 have returned to their normal state due to the movement of the steel balls, so once the box lid is placed over the box body, the locking pawl 9 of the key member will open as described above. It engages with the keyhole 8 and is locked.

The present invention is constructed as described above, and the lock is unlocked by the above-mentioned operation. To open the lock, the box body is moved and the steel balls are moved along a path of steel balls set in a puzzle-like maze shape. Since the steel ball is moved for observation and moved to the unlocking device installed at a specific position in the passage, the purpose is achieved by skillful operation and observation. This has the effect of making lock operation more interesting.

[Brief explanation of drawings]

The drawings show examples of the present invention. Figure 1 is an external perspective view of a box in which the tactile lock of the present invention is implemented, Figure 2 is a sectional view showing the main parts, and Figure 3 shows the internal structure of the box lid. FIG. 4 is a cross-sectional plan view, FIG. 4 is a side view of the main part, and FIG. 5 is an explanatory diagram of the operation of the main part. 1... Box body, 2... Sealed chamber, 3... Box lid, 4
...Box lid bottom plate, 5...Notch through hole, 6...Bottom plate, 7
...Elastic upright plate, 8...Keyhole, 9...Latching claw, 1
0... Key member, 10a... Spring, 11... Support shaft,
12...Protrusion piece, 13...Abutting piece, 14...Lever-like operating plate, 15...Bearing piece, 16...Spindle, 17
...Spindle, 18...Movable plate, 19...Latching piece, 2
0...Spring, 21...Steel ball.

Claims (1)

[Scope of utility model registration request] In a box body in which the back edge of the lid is hinged to the back edge of the box body and a lock is provided on the front, a notch through hole 5 is formed at an appropriate position on the front end of the bottom plate 4 inside the sealed hollow box lid 3. The elastic upright plate 7 whose lower end is fixed on the bottom plate 4 inside the box body 1 is inserted and protruded through this through hole, and a keyhole 8 is provided in this protruding part, and the keyhole 8 is engaged with and detached from the keyhole 8. A key member 10 with a locking pawl 9 provided at the front of the lower end,
The device is rotatably supported on a support shaft 11 inside the front end of the hollow box lid 3, and the key member 1 is always supported by a spring 10a.
Move and hold the lower part from the support shaft 11 of 0 to the rear side,
Immediately behind the key member 10, the front end is bent downward and a projection piece 12 protruding from the front surface of the lower end is attached to the key member 1.
The lever-like actuating plate 14 which is brought into contact with the abutment piece 13 provided on the back side of the hollow box lid 3 is pivoted at an appropriate position by the support shaft 16 on the bearing pieces 15, 15 provided on the inner bottom plate 4 of the hollow box lid 3. A movable plate 1 is located near the outside of one of the bearing parts of the bearing pieces 15, 15, and has a front end supported by a support shaft 17.
The rear of the movable plate 18 is disposed along one side of the lower surface of the lever-like actuating plate 14, and the movable plate 18 has a locking piece 1 at an appropriate position on the upper edge thereof, which engages and disengages from the side edge of the lever-like actuating plate 14.
9 is erected, and a spring 20 is connected to the lever, and the spring 20 is rotated around the support shaft 17 during reception to move below the lever-like actuating plate 14. A single steel ball 21 having a required outer diameter is mounted on the bottom plate 4 in the lid which is provided so as to lock the steel ball 19 and is sealed.
At the same time, the rolling path of this steel ball is arranged on the bottom plate 4.
A puzzle-like maze-like structure is formed by several vertical guide plates 22, and this passage communicates with a passage formed by the lever-like operating plate 14 and a movable plate 18 provided below it. The distance between the lower half of the lever-like actuating plate 14 and the bottom plate 4 is as follows.
This tactile lock is characterized by having a downward slope at the rear so as to be narrower than the diameter of a steel ball 21, and having a lever-like operating plate 14 fixed by the action of a spring 20 or its own weight.