JPS5921129B2 - key switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thousand-switch, which aims to be easy to assemble and manufacture, and also to be able to turn keys by using three dedicated keys, two sub keys and one master key. The object is to provide a device that can be used by making full use of three types of operating means: dynamic operation, push-in operation, rotation, and push-in operation.

An example of a preferred embodiment of the present invention will be described below with reference to the drawings. The outer cylinder 1 is made into an elongated shape, and is housed in a cover 9, and a mouth 8 is provided on the front for holding the keys of the first and third keys A'jA''. The second and third keys A', A" do not hinder only rotation around the axis.
A mouth 8 is formed in the cylinder so as not to obstruct movement only in the direction of the key axis.
A switch 7.degree. 11 is attached to the end of the tube so as to be slidable along the direction of insertion, and is connected to the inner tube 2 by appropriate means.

Further, the outer cylinder 1 is provided with locking parts 4 at positions facing the guide parts and openings of the inner cylinder 2, which will be described later, so that the plate-shaped tumbler 5 can be locked and unlatched. do.

The inner cylinder 2 opens a keyhole 10 following the mouth 8, and this keyhole 10
A pair of clamping claws 12, 12 which are brought into contact with each other by a spring 11 are housed in the mouth with a lid 13, and the keys A, A/, A// inserted into the keyhole 10 unlock the plate-shaped tumbler 5. When operated, both clamping pawls 12.degree. 12 are formed so as to bite into and lock into a recess A-1 formed in the key A, thereby temporarily fixing the inner cylinder 2 and the key.

In addition, the inner cylinder 2 has an appropriate number of guide parts 3 penetrating through the key hole 10 in a direction perpendicular to the key insertion direction in the middle of the back of the key hole 10, and a plate-shaped plate is provided inside each guide part 3. Tumbler 5
are inserted into the slides, and each tumbler 5 has a stop pin 14.
, 14, so that they can be releasably locked to the respective locking portions 4...K.

Each plate-shaped tumbler 5I/''i is molded into a strip shape with the same length or slightly shorter than that of the guide part 3, and a hook 16 for connecting with the coil spring 15 is protruded at a predetermined position, so that the tumbler 5 The tumbler 5 is formed so as to be resiliently springed by a coil spring 15 and latched to the locking portion 4, and has a long key insertion hole 6 in the plate surface of the tumbler 5, so that when the key is inserted into the tumbler 5, the tumbler 5
is configured in a predetermined positional relationship so that it can slide along the guide portion 3 against the coil spring 15 and be unlatched from the locking portion 4.

However, when the key is not inserted, the plate-shaped tumbler 5 is latched to the locking part 4 by the action of the coil spring 15, and the inner cylinder 2 is integrally fixed to the outer cylinder 1, so that the slot is inserted into the insertion length. When inserted into the hole 6, it slides against the spring force of the coil spring 15 and is unlatched from the locking portion 4, allowing the inner cylinder 2 to rotate and slide freely relative to the outer cylinder 1. be.

In this way, the inner cylinder 2 and the switches 1, 7' whose movements are controlled by each plate-like tumbler 5 and are integrally interlocked with the key are actuated by the actuating body 1.
This actuating body 17 is in the shape of a disk, and one plate surface is provided with a protrusion 18°18 which engages with a hole 19.19 in the inner cylinder 2 so that it rotates and slides together with the inner cylinder 2. Concatenate as follows.

The actuating body 17 is provided with an abutment surface 20 on the other plate surface, so that when the inner cylinder 2 slides, the actuator γ-a is pushed to form a winch chia so that it can be cut. A guide portion 21 is provided protruding at an angle (approximately 100 degrees in the drawing) that is slightly larger than the rotation angle of the key previously regulated by the lock opening 8, and the actuator 7 of the switch 1' is inserted into the guide portion 21. - inclined contact surface 2 with a'
An arcuate cam 22 having a number 3 formed thereon is provided so as to be freely protrusive and retractable by a spring 24, and when the inner cylinder 2 is sliding, the cam 22 does not come in contact with the actuator 7-a' and does not operate the switch 7'. During operation, the switch 71 can be turned on by rotating the same angle together with the actuator 17 and pushing the actuator 1-a' with its contact surface 23.

The keys A, A', and A'', which are rotatably inserted into the keyhole 8, are advanced to unlock the plate-like tumbler, and then the first key is inserted into the keyhole 8. A guide surface 8a with which the jaw A2 of the second key A comes into contact and prevents and restricts its advancement, and a recessed groove 8b that restricts the stepped portion A3 of the second key A' from moving forward and backward only in the key groove direction are formed. There is.

As a result, the actuating body 17 connects the inner cylinder 2 and the switches 1 and 7', so that when the key A is turned, only the switch 7' is turned on, and when the key A' is pressed, only the switch 7 is turned on, and when the key A' is pressed, only the switch 7 is turned on. When A'' is rotated and pushed in, both switches 1 and 1' can be turned on at the same time.

Therefore, according to the present invention, by inserting the key A shown in FIG. Immediately after the lock is released and unlocked, the jaw A2 comes into contact with the guide surface 8a and further progress is blocked, and the key A is rotated and the cam 22 of the actuator 17 releases the actuator 1-a. ', and with key A, only switch 7' can be turned on and off (6th
Figure 6-2).

Furthermore, when the key A' shown in FIG. Push in A' to push the actuator 7-a with the abutment surface 20 of the actuator 17, and release the key A.
', only the switch 7 can be turned on and off (FIG. 7 opening to FIG. 7 2).

Furthermore, if the key A shown in FIG. 8A is inserted into the keyhole 9,
Even after each plate-shaped tumbler 5 is unlocked, the convex portion A4 can advance and pass through the groove 8b, so the key A'' is pushed in and the abutting surface 20 of the actuating body 17 pushes the actuator 7-a to open the switch. It is possible to turn the switch 7' on and off using the cam 22 of the actuating body 17 by turning the switch 7' (FIG. 8-8N).

As described above, the present invention provides a structure in which the front surface of the outer cylinder does not prevent only the rotation of the first and third keys around the key axes, and only prevents the movement of the second and third keys in the key → pongee direction. A keyhole is formed so that the keyhole is not inserted into the keyhole, and an inner cylinder is provided so as to be rotatable and slidable along the insertion direction of the keyhole with respect to the outer cylinder. A locking portion is provided at a position of the outer cylinder facing the opening of the guide portion, and a plate-shaped tumbler having a long insertion hole into which a key is inserted can be attached to and removed from the locking portion. It is inserted into the slide, and multiple switches are arranged in the inner cylinder so that it turns on and off as it rotates and/or slides, and the two sub keys and one master key are used to press the specified key. A single switch or a plurality of switches at the same time can be turned on and off, and one specific switch can be turned on and off by rotating the first key,
You can turn off another specific switch by pressing the second key,
By rotating and pushing the third key, the plurality of switches can be turned on and off at the same time.

Therefore, when registers and computer systems are managed by multiple operators, it is possible to distinguish the work of each operator. For example, the first and second keys are used as subkeys for registers such as supermarkets, and are used as subkeys for cashiers. By using the third key as a master key for the store manager, one cashier can work only during the first half of the business hours, and the other cashiers can only work during the second half, and the store manager can act as a substitute when the cashier is absent. You can also calculate daily totals.

The tumbler is made into a plate shape and is inserted into the guide part of the inner cylinder so that it can be freely engaged with and removed from the locking part. It can be manufactured easily and quickly by inserting a key whose handle (knob) can pass through the keyhole into the keyhole, sliding it into the outer cylinder, and then pulling out the key. - The work process was significantly labor-saving compared to the - format.

Therefore, it was possible to obtain a device which is easy to assemble and manufacture, and which can be cut and operated by three operating means of a dedicated key, thereby achieving the intended purpose.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the key switch of the present invention. Figure 2 is a longitudinal sectional front view taken along the line ■-■. Figure 3 is a vertical cross-sectional rear view along the ■-■ line. FIG. 4 is a partial cross-sectional plan view along line IV-IV. FIG. 5 is an enlarged exploded perspective view of the locking mechanism. Figure 6 shows an example of a sweep operation in which one switch is activated by turning the key. Fig. 6C shows the state in which the lock is unlocked, and Fig. 6C shows the state in which the key is turned and the switch is activated in the longitudinal side view.
■Longitudinal rear view that allows you to follow the line. Figure 7 shows an example of a sweep operation in which a key is pressed to activate the other switch. FIG. 7C shows the locked state, FIG. Figure 8 shows an example of a sweep operation in which both switches are activated by pressing and turning the key, and Figure 8A shows the key used for this.
Figure 8 is a vertical side view showing the state in which the plate-like tumbler is unlocked by inserting the key, and Figure 8C is a vertical side view showing the state in which the other switch is activated by pressing the key. 8N:
This is a cross-sectional plan view showing the state in which one switch is activated along with the other by turning the key. In the figure, A, A', A" are keys, A-1 is a concave part of the key, 1 is an outer cylinder, 2 is an inner cylinder, 3... is a guide part, 4... is a locking part, 5... ... is a plate-shaped tumbler 16 ... is an insertion slot, γ
. 7' is a switch, 10 is a keyhole, and 8...a keyhole. 39-

Claims (1)

[Claims] 1 A thousand-switch that is opened and closed by the first to third keys, and has a lock on the front of the outer cylinder that does not only prevent the rotation of the first and third keys around the key axes, but also has the second and third keys. A mouth is formed so as not to impede movement of the key in the direction of the key axis, and an inner cylinder is provided so as to be rotatable and slidable along the direction of the key axis with respect to the outer cylinder, and a guide part is attached to the inner cylinder. A locking part is provided in the outer cylinder position facing the opening of the guide part, and a plate-shaped tumbler having a long insertion hole into which a key is inserted is inserted into the guide part in the direction perpendicular to the keyhole communicating with the guide part. 1. A key which is slidably inserted so as to be able to be attached to and removed from a part thereof, and has a plurality of switches disposed in an inner cylinder so as to be turned on and off as the key rotates and/or slides. switch.