JPH0211713B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to push-button locks. More specifically, the present invention has a plurality of pushbuttons, numbers, symbols, codes, etc. are prepared in advance for the buttons, and only pushbuttons with predetermined combinations of numbers, symbols, codes, etc. of these pushbuttons are pressed. To provide a push-button lock with a mechanism that can be unlocked when the button is pushed, but cannot be unlocked by other push-button operations and remains locked.

The push button lock can be made smaller than expected;
Since it is structured so that it can be unlocked and locked by a combination of numbers, symbols, codes, etc., there is no need to worry about a third party unlocking the lock with a duplicate key. There is no need to worry about loss or operation.

The present invention is characterized by having a lock body, a slide member (hereinafter referred to as a slide plate), an appropriate number of push buttons and an engaging pin, and the push buttons are arranged at appropriate intervals and are movable up and down between the lock body and the slide plate. The push button has a pin insertion groove in the length direction, and at least two types of engagement pins are formed on the lock body or the slide plate at positions opposite to the pin insertion grooves of the push button. The engaging pin is formed by combining two or more pins, and the engaging pin can be freely inserted into and removed from the pin insertion groove by an appropriate combination of up and down movements of the push button,
This is a push button lock characterized in that the slide plate is formed to be movable or immovable relative to the lock body.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a lock body made of a material such as metal or plastic, which has side plates 2, 2 and a bottom plate 3 formed into a roughly shaped cross-section symmetrical about the central axis. A plurality of push button insertion grooves 4 . . . and pin insertion grooves 4' are formed at equal intervals along the length of the side plates 2, 2. Reference numerals 5 and 5 indicate sliding grooves of a sliding protrusion/push button pushing part 12 of a sliding plate, which will be described later. The insertion groove 4 may be formed so that the push button passes through the bottom plate. 7... is a spring formed on the back side of the insertion groove 4, which engages and supports the push button.

FIGS. 2A and 2B show a perspective view and a cross-sectional view of the push button 6 which is vertically movably attached to each of the insertion grooves 4, and these form a pin insertion groove 61 in the length direction.

In addition, the pin fitting groove has sloped surfaces 6a on the upper and lower sides in order to allow the engaging pin to escape more smoothly.
6a is formed and the cross section is made into a mold. Reference numeral 6b denotes a spring engaging portion having an uneven shape formed on the back surface of the push button. A spring 7 is engaged with the engaging portion, and the push button is supported by smoothly moving up and down. As shown in the second figure, 6c and 6c are inclined surfaces formed symmetrically at both lower ends.

FIG. 3 shows a plate-shaped slide plate, in which the slide plate 8 has a plurality of pin attachment holes 9 formed along its longitudinal direction over its entire width and corresponding to the spacing between the push buttons. Engagement pins 10 are formed symmetrically in the holes. Reference numeral 11 designates a single spring that elastically supports the left and right engaging pins 10 and causes the pins to move in the protruding and retracting direction to the side of the slide plate. The springs may be formed separately for each of the left and right engagement pins.
As shown in FIG. 4 E ₁ and E ₂ , at least two types of engagement pins 10 are required. The two types are that one set of engagement pins combines two or more pins,
The combination dimensions of each pin are divided into two types. Specifically, _E1 is an engagement pin 10 consisting of pins having dimensions a and b. E ₂ consists of pins of dimensions c and d. Note that a+b=c+d.
Furthermore, a>b, c>d, and c>a>b>d. Figures 5 to 8 show the state in which the engagement pin is engaged with the push button, and the slide member is moved relative to the lock body by being able to fit in and out of the pin insertion groove by appropriately combining the up and down movements of the push button. Possible or impossible. FIG. 5 shows a side view in the locked state, and the push buttons 6 are aligned upward. At this time, the state in which the engaging pin is fitted into and removed from the pin fitting groove is as shown in FIG. FIG. 7A shows the pin fitting groove 61 of the push button 6.
An engagement pin C is fitted into the slide plate 8, and an engagement pin D is fitted into the slide plate 8 via a spring 11.
Thus, the joint surface H of both engaging pins coincides with the joint surface H1 of the slide plate 8 and the lock body ₁ , and the slide plate is in a slidable state. In other words, this is the state of the engagement pin when the lock is unlocked. However, as shown in FIG. 7B, the engagement pin A is fitted into the pin insertion groove 61 of another push button 6, and the engagement pin B is fitted into the slide plate 8 via the spring 11. . In this case, the joint surfaces of the engagement pins A and B do not coincide with the joint surface _H1 between the slide plate 8 and the lock body 1. Therefore, the slide plate cannot be moved. In other words, the engagement pin is in a locked state. Figure 6 shows the state when the lock is unlocked, and in the push buttons 6 in Figure 5, press the first, third, and fifth push buttons from the left downward to change from the locked state to the unlocked state. ing. In this state, the slide plate can be moved forward (to the position indicated by the imaginary line). The length of movement may be set appropriately.

FIG. 8A shows the state of the engagement pin when the push button in FIG.
is located inside the slide plate, and the slide plate prevents movement. FIG. 8B shows a state in which the push button in FIG. 7B is pressed, and it is clear that the button in FIG. 7B is in an unlocked state. In FIGS. 3, 5, and 6, reference numerals 12, . . . indicate push button pressing parts, which are integrally provided on the outside of the slide plate. The push-up part pushes up the push button that is moving downward when the slide plate moves from its lower surface to return the push button to its original position. Therefore, it is usually designed to be located between push buttons. The push-up part may be formed separately from the slide plate.

FIG. 9 shows an example of the usage state of the push button lock having the above structure. A decorative lid 13 is attached to the lock body 1 of the push button, and an exposure hole 14 is formed in the upper surface of the decorative lid, and the head of the push button 6 is exposed through the hole so that it can be operated by pushing. I'm being forced to do it.

X is, for example, a door frame, a window frame, etc., and the hook-shaped part (not shown) at the tip of the slide plate is inserted into the receiving groove (not shown).
is locked. Thus, the pushbutton remains locked and returns to its original state.

In FIG. 10, a push button 15 is formed on the slide plate side, and is formed on a slide plate 16 so as to be movable together with the slide plate. In other words, it is attached to the push button fitting groove 17 so as to be vertically movable. 18
19 is a pin insertion groove, 19 is a protrusion hole for an engaging pin, 20 is a lock body, 21 is a pin protrusion hole formed in the lock body, 2
2 is an elastic spring, and 23 and 24 are a pair of engagement pins, which are shown in a locked state in the drawing. That is, the joint surface _H1 between the slide plate and the lock body and the joint surfaces of the two pins do not match. In this design, when the push button is moved down and the engagement pin escapes from the pin insertion groove 18, the joint surfaces align with each other, resulting in an unlocked state and a state in which the slide plate can slide. It is clear that a locking mechanism can be obtained by attaching the push button to the slide plate side in this manner and using the two types of engagement pins in combination as described above.

FIG. 11 shows an example in which magnetism is used to determine the engagement pin and its engagement/disengagement state. Magnetism is imparted to each of a pair of engaging pins, and magnetism is also imparted to the opposite side, and the magnetic field is generated by repulsive force due to repulsive magnetic fields between positive poles or between negative poles, or by an induced magnetic field due to a combination of positive and negative poles. Due to the attractive force caused by this, it is possible to maintain the unlocked state or the locked state by making the joint surfaces of the engaging pins coincide with or mismatching the joint surfaces of the slide plate and the lock body. 25 is a push button,
26 is a slide plate, 27 is a lock body, and 28 and 29 are a set of engagement pins. 30 is a pin insertion hole, 31, 32
is a magnetic material. In this drawing, when the push button 25 is pushed up, the joint surface with the engagement pins 28 and 29 does not match the joint surface _H1 between the slide plate and the lock body.
Indicates a locked state. Magnet 31 and engagement pin 28
The engaging pins 28 and 29 are also used as an attracting magnetic field. Further, the magnet 32 and the engaging pin 28 also serve as an attractive magnetic field. Therefore, when the push button is pressed down, the engagement pin 28 is inserted into the pin insertion groove 30, and the joint surfaces of the engagement pins match the joint surface _H1 between the slide plate and the lock body, and the lock becomes unlocked, and the slide can. If magnetism is used, either attractive force or repulsive force can be used, and it is more convenient than moving the engagement pin by protruding and retracting with a spring. Further, the combination of the positive and negative poles of the magnet may be appropriately structured. The key is to release the slide plate from being blocked by the engagement pin.

12A and 12B show another embodiment, in which the slide plate 33 is formed in a circular shape, and the lock body 34 is also made to correspond to the circular shape. A push button 35 is attached to the lock body so as to be movable up and down. It is clear from the illustration that A indicates the unlocked state and B indicates the locked state.
Incidentally, the circular slide plate can be moved in the forward and backward directions and/or in the rotational direction in the unlocked state. Which one to select and design may be determined depending on the application.

As explained above, the push button lock of the present invention uses two or more types of engagement pins that can be freely fitted and removed into the pin insertion groove of the push button, and connects two or more engagement pins that constitute each engagement pin. Even if the surface matches the joint surface between the slide plate and the lock body (of course including the joint surface between the push button and the slide plate or the lock body), or even if it does not match, the engagement pin does not block the joint surface. Therefore, the slide plate can slide to perform locking or unlocking functions, making it a compact lock, and if only the user understands the locking/unlocking operation, it can be used with complex pushbutton combinations. However, it is easy to operate, and on the other hand, third parties can
Difficult to unlock due to complicated combination of push buttons.
This lock is highly practical in terms of security. Furthermore, it can be made firmly, so it can be used for conventional latch locks, chain locks, bag locks, etc., making it very practical. Also,
Various design changes are possible.

[Brief explanation of drawings]

The drawings show an embodiment of the push button lock of the present invention.
The figure is a perspective view of the main part of the lock body, Fig. 2A and B are a perspective view and sectional view of the main part of the push button, Fig. 3 is a perspective view of the main part of the slide plate, and Fig. 4 is E ₁ and E ₂ . Front views of the two types of engagement pins, Fig. 5 is a side view of the main part of the push button in the locked state, Fig. 6 is a side view of the main part of the push button in the unlocked state, Figs. 7 A, B, and Fig. 8 A , B are sectional views of the main parts of the two types of engagement pins in the push button insertion and removal states, FIG. 9 is a usage state diagram, and FIGS. 10 to 12 A and B show other embodiments, Fig. 10 is a sectional view of the main part showing the state in which the push button is attached to the slide plate, Fig. 11 is an explanatory diagram showing how the engaging pin is engaged and disengaged by magnetism, and Fig. 12 A and B are circular shapes. FIG. 2 is a cross-sectional view of a main part using a slide plate. 1, 20, 27, 34...Lock body, 6, 15,
25, 35...Push button, 61, 18, 30...
Pin insertion groove, 8, 16, 26, 33...slide plate, 10, 23, 24, 28, 29...engaging pin.

Claims (1)

[Claims] 1. It has a lock body, a slide member, and an appropriate number of push buttons and engagement pins, the push buttons are supported between the lock body and the slide member at appropriate intervals and movable up and down, and the push buttons are long. It has a pin insertion groove in the horizontal direction, and at least two types of engagement pins are formed on the lock body or the slide member at positions opposite to the pin insertion grooves of the push button, and the engagement pins include two types of engagement pins. The lock is made of a combination of two or more pins, and the engaging pin can be inserted into and removed from the pin insertion groove by an appropriate combination of vertical movement of the push button, and the sliding member is formed to be movable or immovable relative to the lock body. A push button lock characterized by: