JPH0240206Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a keyless locking device.

(Prior art) In the case of a key-operated lock used as a door locking device, the lock and key, including a master key, function in combination, and there is a drawback that if the key is lost, the original function is lost. .

Therefore, a keyless locking device (button lock) that does not use a key has been proposed, as disclosed in Japanese Patent Laid-Open No. 57-71968.

(Problem to be solved by the invention) However, in the conventional keyless locking device, the structure of the locking mechanism in particular is very complicated, which not only causes malfunctions, but also makes the entire device bulky. It was too large and looked very unsightly.

This is because the components of the lock mechanism, including the clearing means of the lock mechanism, are stacked in multiple layers and protrude beyond the door.

Therefore, in the present invention, the locking mechanism, which is the heart of the keyless locking device, is made very compact by arranging tumblers on both sides of the clear operating body and surrounding the tumblers with a slide with a frame structure. The purpose is to make it possible.

(Means for Solving the Problems) The present invention includes an indoor operating mechanism 3 for operating the latch mechanism 1 from the indoor side and an outdoor operating mechanism 6 for operating the latch mechanism 1 from the outdoor side. In order to achieve the above-mentioned purpose, the following technical measures have been taken in the equipped keyless locking device.

That is, the present invention provides a push button holder case 7 that is open on one side and is attached to the outdoor side of the door 2.
There is a guide groove 18 for the clear actuating body 17 inside, and a plurality of tumbler insertion holes 19 on both sides of the guide groove 18.
a frame structure slide 21 which is slidably superimposed on the outdoor side of the substrate 20;
and a tumbler support stand 22 superimposed on the outdoor side of the slide 21. A locking mechanism 16 is built in, and the slide 21 has uneven portions 23 in the sliding direction on both sides of the inner circumference of the frame. a clear actuating body 1 having springs 26 formed correspondingly in the guide groove 18 for positioning the tumblers 24, 24' at respective positions of protrusion and retraction;
7 are disposed at the center of the inner periphery of the frame of the slide 21 and are slidably fitted, and are provided on both sides of the clear actuating body 17 and in the outdoor direction corresponding to the recesses of the concave and convex portions 23 of the slide 21, respectively. A plurality of energized combination alignment tumblers 24 and one clearing tumbler 24' are connected to the substrate 20 and the tumbler support base 2, respectively.
The alignment tumblers 24 are inserted into and retractably inserted into the two tumbler insertion holes 19 and 81, and each of the alignment tumblers 24 has a two-stage positioning engagement groove 29 that is engaged with the spring 26 of the clear actuating body 17 and the unevenness. A locking portion 39 is formed in each of the portions 23, and the pushbutton holder case 7 is further provided with a pushbutton 33 that can individually operate the aligning tumbler 24 and the clearing tumbler 24'. The clearing tumbler 24' is formed with a cam 35 that slides the clearing actuating body 17 in the clearing direction, and by aligning a plurality of combinations of the push buttons 33, the uneven portion 23 of the slide 21 and the alignment tumbler 24 are aligned. When the lock portion 39 is in the unlocked position, the slide 21 is provided to be slidable against the return spring 36 in the unlocked position, and when the slide 21 is unlocked, the slide 21 is moved in conjunction with the outdoor operation mechanism 6. A gear transmission mechanism 40 for sliding the slide 21 is housed in the push button holder case 7 between the slide 21 and the outdoor operation mechanism 6.

(Embodiments and Operations) Hereinafter, the embodiments and operations of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 5 show the assembled state, and FIGS. 6 and below show the details of each component. In FIGS. 1 to 5, 1 is a latch mechanism which can be freely retracted from the side end surface of the door 2.
It can be freely engaged and detached from a female latch receiving metal fitting provided on the fixed side (not shown).

Reference numeral 3 denotes an operating mechanism on the indoor side, and a decorative lid 4 that is open on one side and has a rectangular shape attached to the indoor side of the door 2.
The operating knob 5 is attached to the.

Reference numeral 6 denotes an operating mechanism on the outdoor side, which includes a knob 8 attached to a push button holder case 7 attached to the outdoor side of the door 2. The knob 8 and the knob 5 are coaxially aligned with each other both indoors and outdoors. and are respectively operatively connected to the latch drive shaft 9.

The latch drive shaft 9 has a flat plate shape, and the knob 5 on the indoor side
has a plate-shaped engagement groove 10 into which one end of the latch drive shaft 9 is inserted, and the operating mechanism 3 on the indoor side is interlocked with this groove so that the latch mechanism 1 can freely move in and out.

The operating mechanism 6 on the outdoor side has a safety mechanism 13 mainly composed of a ball 11 and a spring 12 inside, and rotation of the operating knob 8 in the operating mechanism 6 is controlled by a drive pinion gear via the safety mechanism 13 and the operating knob holder 59. 14, and the other end of the latch drive shaft 9 is engaged with the engagement groove 15 of the pinion gear 14 with some play.

That is, the knob 8 of the operating mechanism 6 freely moves the latch drive shaft 9 due to the play in the locking direction of the latch mechanism 1.
In the unlocking direction, a lock mechanism 16 is provided so that the lock mechanism 16 can be unlocked and interlocked.

The lock mechanism 16 is built into the push button holder case 7, and includes a base plate 20 having a plurality of tumbler insertion holes 19 on both sides of the guide groove 18 of the clear actuating body 17;
In the embodiment, a slide 21 having a rectangular frame structure is slidably superposed on the outdoor side of the substrate 20, and a tumbler support base 22 is superimposed on the outdoor side of the slide 21, and the slide Concave and convex portions 23 in the sliding direction are formed correspondingly on both sides of the inner periphery of the frame 21, and in this embodiment, an overhanging portion 25 is formed at the upper portion of the guide groove 18 at each position where the tan plastic 24 protrudes and retracts. A clear actuating body 17 having a positioning spring 26 is slidably fitted therein.

Further, a return spring 27 is engaged with one end of the clearing actuating body 17, and a spring 28 is provided on both sides of the clearing actuating body 17 corresponding to the concave portion of the uneven portion 23 of the slide 21 so that the return spring 27 is moved toward the outdoor direction. A tumbler 24 for combination alignment (for locking and unlocking) and a tumbler 2 for clearing are energized by
4' respectively the tumbler support stand 22 and the substrate 2
It is inserted into and retractably inserted into the tumbler insertion holes 19 and 81 of No. 0.

The aligning tumbler 24 is a plate having two upper and lower positioning engagement grooves 29 that engage with the positioning spring 26 of the clear actuating body 17 and a locking groove 30 that can be freely engaged and detached from the uneven portion 23. and
The matching tumbler 24 is connected to the push button holder case 7.
A push button 33 having a collar 32 is inserted into a button insertion hole 31 formed in the button insertion hole 31, and can be operated individually via a push button return spring 34.

In this embodiment, the push button 33 has 10 display sections numbered 1 to 0, three display sections numbered X, Y, and Z, and a clear display numbered C, corresponding to the button insertion holes 31, respectively. A tumbler for unlocking is formed by any matching combination of the 10 display parts and 3 display parts, and the matching combination In other operations, the lock is released, that is, the operation of one push button, that is, the push button 33 which constitutes a lock tumbler and is inserted into the clear display section, is performed by the clear operating body 17 via the clear tumbler 24'.
In this embodiment, it can be operated against the return spring 27 via a cam 35 shown in FIG.

That is, as shown in FIG.
4, in the set state, the locking groove 30 corresponds to the concave part in the uneven part 23 of the slide 21 (the upper tumbler in FIG. 5), and the locking tumbler 24
The push button 33 releases the springs 28 and 34, respectively.
When the locking groove 30 is pushed in against the force and the retracted position is achieved by the engagement between the engagement groove 29 and the spring 26, the locking groove 30 is located inside (inner part) of the concave part of the uneven part 23, and the protruding part 37 is engaged with the recessed portion against the spring 36 so as to make the slide 21 non-slidable.

On the other hand, the unlocking tumbler (lower tumbler in FIG. 5) is attached to the overhanging portion 37 in the set state.
corresponds to the recess in the uneven part 23, and the unlocking tumbler 24 is pressed by the push button 33.
When the locking groove 30 of the unlocking tumbler 24 is pushed in against the springs 28 and 34, and the engagement groove 29 and the spring 26 engage with each other, the locking groove 30 of the unlocking tumbler 24 becomes uneven. It corresponds to a recess in the part 23, in which all the tumblers 24 allow the slide 21 to slide against the spring 36.

Therefore, the codes 1 to 1 of the unlocking tumbler 24 are
Only when some of the 10 numbers 0 and some of the 3 numbers X, Y, and Z are combined and matched, the slide 21 can be slid against the spring 36.

Note that the combination alignment of the tumblers is based on the substrate 20.
Remove the back plate 38 that is removably attached to the spring 2.
8 and the matching tumbler 24 can be taken out and changed to any combination of matching.

Thus, the lock groove 30 and the protruding portion 37 constitute a lock portion 39.

40 is a gear transmission mechanism, and the slide 21
When the drive pinion gear 14 is unlocked, the slide 21 slides against the spring 36 in conjunction with the operating mechanism 6 on the outdoor side, and consists of a drive pinion gear 14 and a sector gear 41 that meshes with the drive pinion gear 14. It is swingable about the portion 42 as a fulcrum.

The sector gear 41 has a pin portion 4 as shown in FIG.
There are mounting holes 44 for interlocking pins 43 at symmetrical positions on both sides of the slide 21, and the interlocking pin 43 inserted into one of the mounting holes 44 is engaged with the lower end surface of the slide 21. Therefore, by selectively inserting the interlocking pin 43 into either one of the attachment holes 44, the locking device can be attached in correspondence with the left and right openings of the door 2.

Reference numeral 45 designates an operation knob return mechanism, which has a recess 46 for non-interference with the drive pinion gear 14 as shown in FIG.
A return spring 49 is interposed between each of the legs 47 of the L-shaped operating plate 48 shown in the figure and the fixed side, so that when the latch mechanism 1 is operated in the projecting direction with the operating knob 8, the This is to return the operation knob 8 to its original state.

Next, with reference to FIG. 6 and subsequent figures, the structure, shape, etc. of each component and part will be explained, and the assembly procedure will be explained.

In FIG. 6, the decorative lid 4 has a rectangular frame structure with one side open, and has a mounting hole 50 at the top and bottom center, a mounting hole 51 for the operating knob 5 is opened at the bottom, and the operating knob is located on both sides above the mounting hole 51. 5 positioning recess 5
2 is formed.

In FIG. 7, the push button holder case 7 has a rectangular frame structure with one side open, and a mounting hole 53 is provided in the center of the top and bottom.
The canopy part has 14 push button insertion holes 31 in this example, the lower part has a mounting hole 54 for the operation knob 8, and the board 20 is provided on one side of the upper part and on both sides of the lower part.
A mounting hole 55 is formed.

Then, as shown in FIG. 3, the decorative cover 4 is stacked on the indoor side of the door 2, and the push button holder case 7 containing the lock mechanism 16, gear transmission mechanism 40, etc. is stacked on the outdoor side of the door 2, and the mounting holes are stacked. A decorative lid 4 and a push button holder case 7 are attached to the interior and exterior of the door 2 by inserting countersunk bolts 56 through the holes 50 and 53.

In FIG. 8, the outdoor operation knob 8 is a circular cylinder with a U-shaped cross section, and has a screw hole 57 at the center of the interior.
In this example, four ball receiving grooves 58 are formed around the screw hole 57.

In FIG. 9, the operation knob holder 59 is a circular cylinder having an outer flange 60 at one end, a rectangular recess 61 and a counterbore hole 62 in the center, and the end face opposite to the outer flange 60 has four pieces in this example. A spring housing hole 63 is formed.

Then, as shown in FIG. 3, the operation knob holder 5
9 into the mounting hole 54 of the push button holder case 7, and the outer periphery flange 60 is inserted into the mounting hole 54 of the push button holder case 7.
The spring 12 is brought into contact with the inner surface of the spring 12 in the spring housing hole 63.
and the ball receiving groove 58 of the operation knob 8.
The operating knob 8 is loosely fitted into the knob holder 59 while the safety mechanism 13 containing the ball 11 is accommodated in the knob holder 59.
A bolt 64 is screwed into the threaded hole 57 of the operating knob 8 through a counterbore hole 62 to prevent the operating knob 8 from coming off, and a square boss 92 of the drive pinion 14 is fitted into the square recess 61. Therefore, the rotation of the operation knob 8 is controlled by the safety mechanism 13 and the operation knob holder 59.
is transmitted to the pinion 14 via.

In FIG. 10, the board 20 has an external shape that can be fitted into the push button holder case 7, and has cutouts 65 in the upper and lower centers for escape of the mounting bolts 56, and has cutouts 65 on one side of the upper part and on both sides of the lower part. has mounting holes 66 corresponding to the mounting holes 55 of the push button holder case 7, respectively.

Furthermore, rectangular tumbler insertion holes 19 are formed in the substrate 20 in a left-right divided manner corresponding to the push-button insertion holes 31 formed in the push-button holder case 7, and a clear actuating body is provided on the outdoor side of the center. 17 guide grooves 18 are formed, and a back plate 3 is formed on the indoor side.
8 fitting recesses 67 are formed, and the tumbler insertion hole 1
A spring accommodating hole 68 having a trapezoidal cross section is formed on one surface side corresponding to 9.

Further, mounting holes 70 for the back plate 38 are formed on the indoor side surface of the substrate 20, and four mounting holes 69A and four recesses 69 for positioning the tumbler support base 22 are formed on both sides of the guide groove 18 on the outdoor side. Further, a support hole 71 of the sector gear 41 and a pin guide hole 72 are formed in an arc shape on both sides of the support hole 71, and a drive pinion gear 1 is formed in the lower part of the support hole 71.
A fitting hole 73 for the No. 4 cylindrical boss 92A is formed.

In FIG. 11, the back plate 38 has a flat plate shape that is fitted into the fitting recess 67 of the board 20, and a mounting hole 74 having a countersunk portion corresponding to the mounting hole 70 is formed, and a countersunk screw (not shown) is formed. Further, a spring receiver 75 is formed in correspondence with the tumbler insertion hole 19, and a spring 28 shown in a conical coil shape is attached to the spring receiver 75 and the spring receiving hole 68 of the substrate 20 as shown in FIG. The back plate 38 is housed as shown in FIG.
It is attached to 0.

In addition, in FIG. 11, 76 is a hole that is fitted onto the boss of the sector gear support hole 71.

In FIG. 12, the slide 21 is formed into a rectangular frame shape by punching out a flat plate, and has uneven parts 23 formed on both sides of the inner periphery of the frame, and a spring support protrusion 78 formed on one side of the upper part. A relief portion 77 for the clear operating body 17 is formed in the center of the upper portion.

In FIG. 13, the tumbler support 22 holds the slide 21 between it and the board 20, and has a knock pin 79 on one side corresponding to the positioning recess 69 of the board 20, and a countersunk-shaped mounting hole 80. The slide 21 is slidably sandwiched between the outdoor side surface of the board 20, and the mounting hole 69A of the board 20 and the mounting hole 80 of the tumbler support base 22 are aligned, and the slide 21 is attached to the board 20 with screws not shown. It is being

Furthermore, the tumbler support base 22 has tumbler insertion holes 8 in the same arrangement as the tumbler insertion holes 19 of the board 20.
1, a guide groove 82 for the clearing actuating body 17 is formed on the knock pin side, and a protrusion 84 for preventing the tumbler from falling that surrounds the four sides of the tumbler insertion hole 81 via slits 83 on the opposite side of the knock pin. A receptacle for the push button return spring 34 is formed on each protruding end surface of the protrusion 84.

The clear actuating body 17 is an assembly of a spring holder 85 shown in FIG. 14 and a spring 26 made of a strip material shown in FIG.
It is a rod material having a width that can be fitted into the guide groove 18 of 0. Recesses 85A are formed on both sides at intervals in the longitudinal direction of the rod, and cylindrical dowels 86 are provided on the indoor side in the longitudinal direction of the rod. A flat dowel 86A is formed on the outdoor side, and a cam 88 is formed on the lower end. On the other hand, positioning spring 2
As shown in FIG. 15, a fitting hole 87 for the dowel 86 is formed in a base 26A formed of a strip material in the shape of a gutter, and the spring leg side 26B is inserted from the base 26A so as to face the recess 85A of the spring holder 85. It stands upright and has a projecting portion 25 at the top of the spring leg piece 26B.

As shown in FIGS. 1 and 2, the spring leg pieces 26B of the spring 26 are made to face the recesses 85A on both sides of the spring holder 85, and the base 26A of the spring 26 is fitted onto the spring holder 85, and the dowels of the spring holder 85 are fitted. 8
6 into the fitting hole 87, the clear actuating body 1
It is said to be 7.

Note that the dowel 86 of the clearing body 17 is connected to the substrate 20.
The slit 1 formed at the bottom of the guide groove 18 of
8A and slide guides the clear operating body 17 together with the guide groove 18, and the flat dowel 86A of the clear operating body 17 is inserted into the tumbler support base 2.
It is fitted into the guide groove 82 of No. 2 and guides the clearing actuator 17 in a sliding manner.

The tumbler 24 for locking and unlocking is made of a flat plate as shown in FIG. 16, and has two positioning and engaging grooves 29 (upper and lower) on one side, and a locking groove 30 unevenly distributed on either the upper or lower side on the other side. , has spring support portions 89 on the upper and lower end surfaces. With this, by turning the tumbler 24 upside down and replacing it, it can be used both for locking and unlocking.

In addition, as shown in FIG. 17, a clear tumbler 2
4' is a flat plate having spring support parts 90 on the top and bottom and a cam 35 on one side, and when the cam 35 is pushed into the cam 88 of the clearing actuating body 17, the clearing actuating body 17 is connected to the spring 27. It is possible to slide against it.

In FIG. 18, the push button 33 has a rectangular cylindrical shape with an outer peripheral collar 32 at one end, and has a spring housing hole 9 inside.
1, and the outer periphery flange 32 is the push button holder case 7.
They are respectively fitted into the insertion holes 31 so as to come into contact with each other from the inner surface of the tumbler support base 22, and when pushed against the spring 34, they can be inserted into the slits 83 of the tumbler support base 22.

In FIG. 20, the drive pinion gear 14 has an engagement groove 15 for the flat latch drive shaft 9 inside, a square boss 92 on one side and a cylindrical boss 92A on the other side.
is formed, and the square boss 92 is fitted into the square hole 61 of the knob holder 59, and the cylindrical boss 92A
is fitted into the fitting hole 73 of the substrate 20.

As shown in FIG. 10, the back side (indoor side) of the board 20 has the same symbol as the push button holder case 7, and as shown in FIG. There is a part code.

Next, the effect will be explained.

The operating mechanism 3 on the indoor side can freely move in and out of the latch mechanism 1 via the latch drive shaft 9 regardless of the lock mechanism 16, but the operating mechanism 6 on the outdoor side can move in and out of the latch mechanism 1 regardless of the lock mechanism 16.
To release the door 2, i.e. open the door 2, the lock mechanism 16
It is said that it can be operated only after unlocking.

That is, the rotation of the knob 8 in the outdoor operation mechanism 6 is transmitted to the drive pinion gear 14 via the safety mechanism 13 and the knob holder 59, and since the pinion gear 14 and the sector gear 41 are engaged, the sector gear 41 is interlocked and the gear is 41 is rotated about the pin portion 42, and the locking mechanism 16 restrains the interlocking pin 43 from sliding the slide 21 against the spring 36, so that the locked state is maintained. , door 2 cannot be opened.

Even if you forcefully pry the knob 8 in the unlocking direction, the safety mechanism 13 will work and the knob 8 will simply spin idly.
The interlocking pin 43 is not swung.

Therefore, in order to unlock the lock, the combinations of the push buttons 33 numbered 1 to 0 on the display and the push buttons 33 of X, Y, and Z are aligned in advance so that the tumbler 24 is unlocked in the set state. This allows the slide 21 to slide for the first time, so the resident memorizes the combination matching number and presses the push button 33 corresponding to the number against the spring 34 to release the spring 34. via tumblr24
is pushed against the spring 28, and the pushed tumbler 24 is pushed into the overhanging portion 2 of the spring 26 of the clear actuating body 17.
5 is maintained by the engagement groove 29 being engaged with the engagement groove 29.

Note that if you press a number other than the one stored by mistake, press the push button 33 corresponding to the clear tumbler 24' and move the clear actuating body 17 to the cam 35,
88 in the clearing direction (upward in FIG. 4) against the return spring 27, the position of the aligning tumbler 24 and the overhanging portion 25 of the spring 26 on the clearing actuating body 17 is shifted. and here, overhang part 2
5 is disengaged from the engagement groove 29, and the tumbler 24 is cleared via the spring 28.

Incidentally, after the push button 33 corresponding to the stored number is pushed in as memorized, the push button 33 is returned to its old position by the spring 34.

Then, when the locking mechanism 16 is unlocked, the interlocking pin 43 slides on the slide 21 against the spring 36 via the gear transmission mechanism 40, and here,
The latch mechanism 1 can be interlocked in the unlocking direction via the latch drive shaft 9.

In addition, after the lock is unlocked, slide 21
is the spring 36, the clear actuating body 17 is pushed in by the spring 27, the tumbler 24 is returned to the old position by the spring 28, and the sector gear 41 is returned to the old position via the interlocking pin 43 by the return of the slide 21. become.

In addition, since the operation knob 8 can be interlocked with the latch drive shaft 9 in the direction of locking the latch mechanism 1 regardless of the lock mechanism 16, the lock can be freely locked from the outside.

(Effect of the invention) Therefore, according to the invention, the alignment tumbler 24
The locking mechanism 16 can be locked by an arbitrary number by the combination and alignment of the numbers. By arranging the aligning tumbler 24 that can be freely positioned, the entire device can be designed very compactly and can be provided at a much lower price than conventional examples. It is of great benefit as it can provide something that is reliable and easy to assemble.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the entire assembled state, Fig. 2 is an external view from the outside of the room, Fig. 3 is a sectional view of the device, and Fig. 4 is a diagram of the internal structure. The tumbler support is omitted in the front view, and the fifth
The figure shows the operating state as an enlarged sectional view taken along the line A-A in FIG. ,
Fig. 6 2 is a partially cutaway side view of the decorative lid, Fig. 7 1 is a back view of the push button holder case, Fig. 7 2 is also a side view, and Fig. 7 3 is a cross section taken along line A-A in Fig. 7 1. Fig. 74 is a sectional view taken along line BB in Fig. 71, Fig. 81 is a side view of the outdoor operation knob, Fig. 82 is a rear view, and Fig. 83 is a sectional view; 9. 1 is a rear view of the operation knob holder, 9. 2 is a sectional view, 9.3 is a front view, 10. 1 is a rear view of the board, 10.2 is a front view, and 10. 3 is also a vertical cross-sectional view, and FIG. 10 4 is A-A in FIG. 10
10.5 is a sectional view taken along line B-B in FIG. 10.2, FIG. 11.1 is a front view of the back plate, FIG. 11.2 is a back view of the back plate, and FIG. 11.3 is a cross-sectional view of FIG. 11.1. 114 is a BB sectional view of FIG. 112,
12.1 is a front view of the slide, FIG. 12.2 is a plan view, FIG. 13.1 is a back view of the tumbler support, FIG. 13.2 is a side view, and FIG. 13.3 is a front view. 14. FIG. 1 is a rear view of the spring holder constituting the clear actuating body, FIG. 14.2 is a side view, FIG. 14 is a front view, and FIG. 4 is an enlarged sectional view taken along line AA in FIG. 14. 14.5 is a detailed view of the lower part (cam part), FIG. 15.1 is a front view of the spring constituting the clear actuating body, FIG. 15.2 is a side view, and FIG. 15.3 is the same as that of FIG. A-A enlarged view, Figure 16 is a detailed view of the tumbler, Figure 17 1
17 is a front view of the clearing tumbler, FIG. 17 is a plan view, FIG. 17 is a side view, FIG. 18 is a plan view of the push button, FIG. 18 is a front view, and FIG. 19 is a front view of the clearing tumbler. 19 is a front view of the sector gear, FIG. 19 2 is a sectional view, and FIG. 19 3 is a side view.
19 is a plan view, FIG. 20 is a side view of the drive pinion gear, FIG. 20 is a rear view, FIG. 20 is a front view, and FIG. 21 is a front view of the actuating plate. 21 Figure 2 is also a side view, the second
1. FIG. 3 is a plan view, FIG. 22.1 is a perspective view showing a part of the clear operating body, and FIG. 22 is a plan view of FIG. 22.
It is an AA enlarged sectional view of. 1... Latch mechanism, 3... Indoor operation mechanism, 6
... Outdoor operation mechanism, 7 ... Push button holder case, 16 ... Lock mechanism, 17 ... Clear operating body, 18 ... Guide groove, 19 ... Tumbler insertion hole,
20...Substrate, 21...Slide, 22...Tumbler support base, 23...Irregularities, 24...Tumbler for alignment, 24'...Tumbler for clearing, 33...
Push button, 39... Lock portion, 40... Gear transmission mechanism.

Claims (1)

[Claims for Utility Model Registration] A keyless lock installed on the door 2, comprising an indoor operating mechanism 3 for operating the latch mechanism 1 from the indoor side and an outdoor operating mechanism 6 for operating the latch mechanism 1 from the outdoor side. In the device, a push button holder case 7 with one side open and attached to the outdoor side of the door 2 has a guide groove 18 for a clear actuating body 17, and a plurality of tumbler insertion holes 19 on both sides of the guide groove 18. A substrate 20 having
A slide 21 having a frame structure that is slidably superposed on the outdoor side of the substrate 20, a tumbler support base 22 that is superimposed on the outdoor side of the slide 21,
A locking mechanism 16 is built in, and uneven portions 23 in the slide direction are formed on both sides of the inner circumference of the frame of the slide 21 to correspond to each other on both sides, and the tumblers 24, 24' are formed in the guide groove 18. Clearing actuating body 1 having positioning springs 26 at each position
7 are disposed at the center of the inner periphery of the frame of the slide 21 and are slidably fitted, and are provided on both sides of the clear actuating body 17 and in the outdoor direction corresponding to the recesses of the concave and convex portions 23 of the slide 21, respectively. A plurality of energized combination alignment tumblers 24 and one clearing tumbler 24' are connected to the substrate 20 and the tumbler support base 2, respectively.
The alignment tumblers 24 are inserted into and retractably inserted into the two tumbler insertion holes 19 and 81, and each of the alignment tumblers 24 has a two-stage positioning engagement groove 29 that is engaged with the spring 26 of the clear actuating body 17 and the unevenness. A locking portion 39 is formed in each of the portions 23, and the pushbutton holder case 7 is further provided with a pushbutton 33 capable of individually operating each of the aligning tumbler 24 and the clearing tumbler 24'. The clearing tumbler 24' is formed with a cam 35 that slides the clearing actuating body 17 in the clearing direction, and by aligning a plurality of combinations of the push buttons 33, the uneven portion 23 of the slide 21 and the alignment tumbler 24 are aligned. When the lock portion 39 is in the unlocked position, the slide 21 is provided to be slidable against the return spring 36 in the unlocked position, and when the slide 21 is unlocked, the slide 21 is moved in conjunction with the outdoor operation mechanism 6. A gear transmission mechanism 40 that slides the slide 21 connects the slide 21 and the outdoor operation mechanism 6.
A keyless locking device, characterized in that the keyless locking device is built in the push button holder case 7 between.