JPH0211712B2 - - 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;
It is structured so that it can be unlocked and locked by combining numbers, symbols, codes, etc., so there is no need to worry about a third party unlocking it with a duplicate key, and it can be unlocked and locked without using a key. There is no need to worry about losing or operating it.

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 pushbutton is made up of at least two types of pushbuttons with pin-fitting grooves formed at different positions in the length direction, while the lock body or slide plate has a pushbutton opposite to the pin-fitting groove of the pushbutton. An engaging pin is formed at the position where the lock is to be moved, and the engaging pin is made to be able to be inserted into and removed from the pin fitting groove by an appropriate combination of vertical movement of the push button, and the slide plate is formed to be movable or not movable relative to the lock body. This is a push button lock characterized by the following.

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, and has a roughly shaped cross section symmetrical about the central axis. A plurality (five in the drawing) of push button insertion grooves 4 are formed at equal intervals along the length of the side plates 2, 2. 5, 5 is a sliding protrusion of a slide plate and a push button pressing part 12, which will be described later.
...is a sliding groove. 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 two types of push buttons 6, 6 that are vertically movably attached to each of the insertion grooves 4, and these have pin insertion grooves 61, 62 with different groove formation positions in the length direction. is forming. In other words, the heights X ₁ and X ₂ of both push buttons are equal, Y ₁ >Y ₂ , and the fitting groove 62 is formed above 61 . The pushbutton 6 has two or more groove formation positions, and as the number of pushbuttons increases, the combination of groove positions due to the vertical movement of the pushbutton becomes more complex, so the locking effect becomes better, but the unlocking operation becomes easier. Considering this, two types of groove formation positions are usually used, and by using a combination of these, about 5 to 10 of each, or about 10 to 20 in total, the locking function can be achieved. Although the above-mentioned pin insertion groove is formed over the entire width, it may be formed only in the center portion. In addition, the pin insertion groove has sloped surfaces 6 at the top and bottom in order to make the engagement pin escape from the groove more smoothly.
A, 6a are formed and the cross section is made into a mold. 6b,
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. 6c,
Reference numeral 6c denotes inclined surfaces formed symmetrically at both lower ends as shown in FIG.

FIG. 3 shows a plate-shaped slide plate, and the slide plate 8 has a plurality of pin attachment holes 9 formed along the longitudinal direction over the entire width direction, and engaging pins 10 are inserted therein.
... are formed symmetrically on both sides. The engagement pins 10 are formed at equal intervals at positions facing the pin insertion grooves of the push button, and the left and right engagement pins are pushed by a single spring 11 so as to be able to protrude and retract into the sides of the slide plate. It is formed to be elastically supported and removably fitted into the pin fitting groove of the button. Figure 4 shows the engaging pins 1 at both ends.
0 and 10 are united by one spring 11. 12... is a push button pushing part that projects outward from the slide plate, and when the slide plate moves, pushes up the push button that is moving downward 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. 5 shows the locked state, and the push button 6...
are arranged at the same height above the lock body 1. In this state, some of the engagement pins are inserted into the pin insertion grooves, while others have come out.
It is stuck in the 1st push button, and has escaped in the 2nd and 4th ones. Pushing these will do the opposite. FIG. 6 shows the state when the lock is unlocked, and the first, third, and fifth push buttons from the left side of the push buttons 6 are being pushed downward. In other words, although not shown, in this state, the engagement pins have escaped from the respective pin fitting grooves of all five push buttons, and the slide plate can be moved forward (to the position indicated by the imaginary line). The length of movement of the slide plate may be set appropriately.

FIG. 7 shows a cross-sectional view of a main part of the engagement pin in a state in which it is fitted into and removed from the push button fitting groove, and FIG. 7A shows the fitted state and B shows the removed state. In FIG. 7A, the engaging pin is fitted into the pin fitting groove of the push button, and even if an attempt is made to slide the slide plate in this state, the engaging pin will be caught on the side of the push button fitting groove and cannot be slid. In FIG. 7B, the engagement pin has escaped from the pin insertion groove, and in this state it has also escaped from the push button insertion groove and is in contact with the front surface, allowing the slide plate to slide.

FIG. 8 shows an example of the usage state of the push button lock having the above structure. A decorative lid 13 is attached to the main body 1 of the push button lock, and an exposure hole 14 is provided on the upper surface of the decorative lid.
The head of the push button 6 is exposed through the hole so that it can be operated by pushing.

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.

9 to 13 show other embodiments. Fig. 9 shows a push button provided on the slide plate side, and the push button 15... has a wedge-shaped protrusion 16 widening toward the back and a groove 17 for inserting an engaging pin in the center of the front. Wedge-shaped groove 19 on one side of slide plate 18
It is vertically movably fitted through an engagement spring (not shown) and is slidably formed integrally with the slide plate. Note that the pushbuttons are aligned flush with each other in the longitudinal direction. Reference numeral 17a denotes a sliding guide line for the engagement pin, and a small groove is cut out so as to pass through the center of the pin insertion groove 17. In this way, the user can sense the contact state of the engaging pin with the push button surface. FIG. 10 is a schematic cross-sectional view of the main parts of the lock body, in which the slide plate 18 and push button 15 of FIG. 9 are attached to the lock body. An engaging pin 20 is connected to the push button 1 in the lock body 19.
5 and are formed at equal intervals.
The engaging pin 20 is inserted into a pin insertion groove 21 formed in the lock body.
It can be protruded and retracted from the surface of the lock body via the spring 22. Thus, it can be freely fitted into and removed from the pin fitting groove 17 of the push button.

FIGS. 11 and 12 show an example in which magnetism is used to determine the engagement pin and its engagement and disengagement state. In other words, magnetism is imparted to the engaging pin 28, and the magnetism imparted to the opposite side allows attraction by a combination of N and S poles, or attraction by a repulsion magnetic field by a combination of N and N poles or S and S poles. By applying a separating magnetic force, the engaging pin is fitted into and removed from the pin fitting groove, and the sliding plate is made to be movable or impossible. A magnet 25 is attached to the pin insertion groove 24 of the push button 23 with its N pole facing the engagement pin side, and a magnetic engagement pin 28 is attached to the pin insertion groove 27 of the lock body 26 with the push button side facing S.
It's extreme. Furthermore, the push button is provided with a magnet 29 so that the repulsive magnetic force acts on the engaging pin, so that in the unlocked state, the engaging pin receives the repulsive magnetic force and is inserted into the pin fitting groove. In the locked state in which the push button is pressed down, the engagement pin receives an attractive magnetic force and is inserted into the pin insertion groove. In FIG. 12, a magnet 30 with a repulsive magnetic force is provided deep inside the pin insertion groove 27.

In FIGS. 13a and 13b, the slide plate 31 is formed into a circular shape, and the lock body 32 is also made to correspond to the circular shape. A push button 33 is attached to the lock body so as to be movable up and down, and an engaging pin 34 can be fitted into and removed from a pin fitting groove 35. FIG. 13a shows the state in which the engaging pin is inserted into the pin insertion groove, and FIG. 13b shows the state in which it is removed. Incidentally, the circular slide plate can be formed so that it can move in the front and rear directions and/or in the rotation direction in the unlocked state. Which one to select and design may be conveniently determined depending on the use of the lock.
The degree of movement of the slide plate may be set appropriately.

As explained above, the push-button lock of the present invention is based on a locking/unlocking mechanism by fitting and disengaging a push-button lock and a movable engagement pin, and an appropriate number of push-buttons are placed up and down on the lock body or slide plate. The locking and unlocking functions can be achieved by making the slide plate movable or disabling by fitting the engagement pin into the engagement pin insertion groove of the push button or by making an appropriate combination of ejection. Since the lock is held in possession, it becomes a compact lock, and if only the user understands the locking and unlocking operations, it can be easily operated despite the complex combination of push buttons.On the other hand, third parties have a complicated combination of push buttons to operate. Therefore, it is difficult to unlock, making it a highly practical lock for crime prevention. Furthermore, it can be made firmly, so it can be used for conventional latch locks, chain locks, bag locks, etc., making it very practical. Moreover, 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 parts of the lock body, Figures 2A and B are perspective views of the main parts of the push button, Figure 3 is a perspective view of the main parts of the slide plate, Figure 4 is a front view of the engagement pin, and Figure 5 is a perspective view of the main parts of the lock body. The figure 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 in the unlocked state, and Fig. 7 A and B are cross sections of the main part when the engagement pin is inserted into the push button and removed. 8 is a usage state diagram, FIGS. 9 to 13 show other embodiments, FIG. 9 is a perspective view of the main part showing the push button and the state in which it is attached to the slide plate, and FIG. 10 is a cross-sectional view of the main part of FIG. 9, FIGS. 11 and 12 are explanatory diagrams showing how the engagement pin is operated by magnetism, and FIGS. 13a and 13b are diagrams of other embodiments of the slide plate. It is. 1, 19, 26, 32...Lock body, 6, 15,
23, 33...Push button, 61, 62, 17, 2
4, 35... Pin insertion groove, 8, 18, 31... Slide plate, 10, 20, 28, 34... 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 consists of at least two types of push buttons with pin insertion grooves formed at different positions in the horizontal direction, and on the other hand, an engaging pin is formed on the lock body or the slide member at a position opposite to the pin insertion groove of the push button. and the engagement pin can be freely inserted into and removed from the pin insertion groove by an appropriate combination of up and down movement of the push button,
A push-button lock characterized in that the slide member is formed to be movable or immovable relative to the lock body.