JPH0768808B2 - Keyless locking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyless locking device that can be unlocked from the outside of a door without using a key.

[0002]

2. Description of the Related Art In a keyless locking device as described above, for example, as described in Japanese Patent Application Laid-Open No. 2-30864, an alphanumeric character is attached to an unlocking operation panel attached to the outside of a door. A plurality of attached push buttons are arranged. In the unlocking operation panel, a vertically movable slide plate and locking plates made of small plate materials are provided behind each push button, and these locking plates are provided on the slide plate. It is located in the notch recess and intersects the sliding direction. Each locking plate is biased to the initial position by the spring member, and when moved backward from the initial position in response to the push-down operation of the push button, each locking plate is set to the retracted position by the positioning spring.

That is, in the positioning spring, rearwardly extending bulging portions are formed in a pair in the vertical direction on a base portion extending in the vertical direction, and locking plates are provided on the lateral sides of the left and right bulging portions, respectively. The engaging plate for positioning, which is arranged and moved rearward, is engaged with the above-mentioned overhanging portion, whereby the engaging plate is held in the retracted position.

The locking plate corresponding to a predetermined unlocking combination number is located in the intersection area with the slide plate in the retracted position, and the other locking plates are in the initial position. An opening is formed in each of the intersecting regions with. As a result, only when the push button corresponding to the unlocking combination number is pressed, all the locking plates have the openings located at the intersecting regions with the slide plates, whereby the slide plates can be engaged with each other. It is possible to move upward through the opening of the stopper. In this state, when the knob operation for opening the door is performed, the slide plate is moved upward, and the locking body such as the dead bolt is retracted from the end surface of the door in association with the movement operation. As a result, it is possible to unlock and open the door without using the key.

[0005]

However, the above-mentioned positioning spring is provided with an opening direction between the left and right overhanging portions that make a pair in order to perform a reliable engaging operation with the locking plate. Although dimensional accuracy is required, in the above-described conventional structure, the positioning spring is made of an elastic body, and since each overhanging portion is a small molding portion, it is difficult to obtain the above dimensional accuracy, and the positioning spring is It has a problem that it is difficult to manufacture.

[0006]

In order to solve the above-mentioned problems, a keyless locking device according to the present invention has a plurality of push buttons arranged on the surface of an unlocking operation panel, and the locking body is operated by pushing the push buttons. Is pushed from the initial position to the backward retracted position, the movement of the slide plate in the unlocking direction is restricted by the locking body that has moved to the initial position or the retracted position, and the above-mentioned locking pushed to the retracted position The body is held in the retracted position by engaging the locked portion with the locking projection of the positioning spring member, and the locking projection of the positioning spring member is
In the keyless locking device, which is provided on one side and the other side of the base portion, extends rearward from the base portion, and the corresponding locking bodies are arranged on the sides of each of the locking protrusions, the above-mentioned positioning The spring member comes into contact with the vicinity of the front end portion of each locking projection piece to restrict the movement of each locking projection piece in the opposite direction or the opposite direction, and the locking projection piece on one side and the other side. The present invention is characterized in that a dimension setting member between the locking projection pieces for setting the interval between the portions to a predetermined dimension is provided.

[0007]

According to the above construction, the positions of the respective locking protrusions are set by the dimension setting members between the locking protrusions even if the respective locking protrusions are slightly displaced. Therefore, the distance between the locking protrusions on the one side and the other side can be set with high accuracy, and the positioning spring member can be easily manufactured.

In this case, the positioning spring member is one side if the interlocking projection piece dimension setting member restricts the movement of the locking projection pieces on one side and the other side in the opposite direction. And the other side of the locking projections are formed in a state of being slightly narrower than the position set by the dimension setting member between the locking projections, while the dimension setting member between the locking projections is on one side. And the other side, as long as the movement of the locking projections in the direction opposite to the facing direction is restricted, the locking projections on one side and the other side set the dimension between the locking projections. It is formed in a state where it is slightly wider than the position set by the member.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIGS. 2 (a) and 2 (b), a lock 4 having a latch bolt 2 and a dead bolt 3 is attached to the side end surface of the door 1, and the door 4 is sandwiched by the lock 4. The unlocking operation panel 6 of the keyless locking device 5 is also provided on the outer surface.
Door inner fixed plates 7 are attached to the door inner surfaces, respectively. Operating levers 8 and 8 connected to each other by a later-described square core shaft 10 are attached to the lower end sides of the respective boards 6 and 7 which face each other. On the upper part of the surface of the unlocking operation panel 6, for example, a total of 14 push buttons 34 in right and left 2 rows and upper and lower 7 steps are arranged, and four push buttons 34 ... English letters are the other pushbuttons 34 ...
Are numbered 1 to 9 and 0 on the surface.
The door 1 is further provided with a cylinder lock 11 penetrating the lock 4 and the keyless locking device 5. The cylinder lock 11 has a thumb turn 12 for unlocking / locking operation protruding toward the inside of the door. It is set up.

The unlocking operation panel 6 has a frame body 2 shown in FIG.
0, the upper component shown in FIGS. 4 and 5, and the lower component shown in FIG.

The frame 20 is provided with a long-sided reinforcing plate 21 having a substantially U-shaped cross section which is vertically long, a long-sided seat 22 covering the outer side of the door (hereinafter referred to as front), and upper and lower ends of the long-sided reinforcing plate 21. It is composed of the caps 23 and 23 which are respectively attached. The long seat reinforcing plate 21 and the long seat 22 have rectangular openings 21a from the upper side at positions corresponding to each other.
22a, circular hole 21 into which the cylinder lock 11 is fitted
b • 22b, insertion hole 21c through which the square core shaft 10 passes
22c are respectively drilled. A decorative cover 24 that covers the opening 22a from the front and is slidable up and down is further attached to the long seat 22.

The upper components of the unlocking operation panel 6 are mainly the reader case 25, the reset operation body 26, the upper part of the sensor plate 29 as a slide plate and the dummy plate 91 shown in FIG. 4, and the reader shown in FIG. It comprises a center board 30, a sensor chip 31 as a locking body, a leader case cover 32, a panel locking spring 92 and a number changing panel 93.

The leader case 25 has a substantially box shape and is fixed to the frame body 20 so as to cover the openings 21a and 22a from the inside of the door (hereinafter referred to as the rear).

In the leader case 25, a total of 14 round-hole-shaped insertion holes 25a, 7 in each of two rows on the left and right, and a total of 14 insertion holes 25a, are provided at positions facing the openings 21a and 22a from the rear. A pair of rectangular holes 25b ...
And a guide groove 25 with a shallow depth at the center
c is formed in a shape extending in the vertical direction.

The reset operation body 26 is the leader case 2
5 is provided in the guide groove 25c so as to be vertically movable.
As shown in FIG. 6, this reset operation body 26 is formed by bending a vertically long block-shaped reset bar 27 and a thin plate spring material, and is attached to the reset bar 27 from the front for positioning springs. The reset bar spring 28 as a member and a U-shaped cross section, and the reset bar 27 covers the front part of the reset bar spring 28.
And a spring angle 94 as a dimension setting member between the locking projections assembled to the. The reset bar spring 28 and the spring angle 94 are
The front portion is connected to the front portion of the reset bar 27.

At the rear portion of the reset bar 27, a vertically extending ridge portion 27a is formed, and on the ridge portion 27a, a large number of return operation preventing portions 27b ... And two pressed portions 27c.
27c are formed. The recovery operation blocking unit 27b is
The locking projection 28, which will be described later, of the reset bar spring 28.
a are provided at the same vertical intervals as those of a ...
Both sides and project backwards. Each pressed portion 27c
Are provided on the upper and lower portions of the ridge 27a, and project further rearward from the ridge 27a. The pressed portion 27c has a pressed surface 27d corresponding to a pressing surface 96d of the number changing panel 93 described later.

The reset bar spring 28 has a base portion 28.
Seven locking projecting pieces 28a are formed on both sides of the reset bar 27 with the reset bar 27 sandwiched therebetween so as to be inclined rearward and leftward and rightward. Each 7 locking projections 28a ...
Are provided at the same vertical intervals as the insertion holes 25a of the leader case 25.

The spring angle 94, as shown in FIGS. 7 and 8, is the base 2 of the reset bar spring 28.
8b is provided so as to cover 8b, and the rear end edge portions 94a.
94a is in contact with the vicinity of the front end of each of the seven locking projections 28a. That is, the spring angle 94 sets the dimension D in the opening direction of the left and right opposed locking projections 28a.

The sensor plate 29 is vertically long and vertically, and the upper half thereof is located inside the leader case 25 and is slidable vertically. The upper half of the sensor plate 29 serves as a frame portion 29a that surrounds the 14 insertion holes 25a of the leader case 25 from the outside, and rear bent portions 29h and 29h extending rearward from both side portions of the frame portion 29a. Has been formed. On the inner peripheral end surface of the frame portion 29a, a total of 14 rectangular cutout recessed portions 29 are provided at positions corresponding to the left and right outer sides of the insertion holes 25a.
b ... is formed. The cutout recesses 29b and the locking projections 28a of the reset operation body 26 are shown in FIG.
As shown in FIG. 2, the insertion holes 25a ... The sensor plate 2 is provided at the lower end of the one rear bent portion 29h.
A locking piece 29i is formed for restricting the upward movement of the dummy plate 91 with respect to 9. Further, two spring receiving pieces 29j, 29j protruding forward are formed on the upper end portion of the sensor plate 29. As shown in FIG. 12, sensor plate springs 38, 38 held by the leader case 25 are compressed under the spring receiving pieces 29j, 29j.

The dummy plate 91 is the sensor plate 2
It has a shape almost corresponding to the upper part of 9. That is, the dummy plate 91 includes a frame portion 91a corresponding to the frame portion 29a,
And rear bent portions 29h and 29h, and rear bent portions 91c and 91c corresponding to the rear bent portions 29h and 29h, respectively.
It is located between 9h. The frame portion 91a includes the frame portion 2
At the same vertical interval as the notch recess 29b in 9a,
Notch recesses 91b ... Corresponding to the notch recesses 29b ... Are formed. Further, an engaging piece 91d that engages with the engaging piece 29i of the sensor plate 29 when the dummy plate 91 moves upward is formed at the lower end of the frame portion 91a. Then, this engaging piece 91d is the above-mentioned locking piece 29.
When engaged with i, as shown in FIG. 12, the lower edges of the cutout recesses 91b ... Are substantially aligned with the lower edges of the cutout recesses 29b. Further, the lower edge portion of the cutout recessed portions 91b ... Is provided on the sensor chip 31 when the dummy plate 91 is moved upward.
It is designed to come into contact with the locked portion 31c.

On the other hand, a spring holding portion 91e is formed at the upper end of the frame portion 91a, and the spring holding portion 91e is formed.
As shown in FIG. 14, a dummy plate spring 98 is contracted between the above and a spring holding portion 30c of the leader center board 30 which will be described later. With this dummy plate spring 98, the dummy plate 91
The engagement piece 91d is urged to rise to a position where it engages with the locking piece 29i of the sensor plate 29. Further, sliding contact convex portions 91f for allowing the dummy plate 91 to slide smoothly with respect to the sensor plate 29 are formed at four positions on the upper and lower portions of the frame portion 91a.

The leader center board 30 is attached to the middle position of the leader case 25 in the front-rear direction so as to cover the inside of the leader case 25 from the rear. The leader center board 30 has a ridge 27 of the reset bar 27 in the vertical direction at the center position in the horizontal direction.
A slit-shaped guide groove 30a into which the a, the return operation preventing portion 27b ... And the pressed portion 27c are fitted is bored, and the leader case 25 is provided on both left and right sides with the guide groove 30a sandwiched therebetween.
, And a total of 14 intermediate support holes 30b ... Are formed in the same arrangement as the insertion holes 25a. In addition, a spring holding portion 30c facing the spring holding portion 91e of the dummy plate 91 is formed on the top of the leader center board 30.

As shown in FIG. 9, the sensor chip 31 has an elongated flat plate shape in the front and rear direction, and a widest intermediate portion 31a is formed in an intermediate region in the front and rear direction.
A narrow portion 31b and a locked portion 31c that laterally inclines to the left and right are sequentially formed from a to the front.
Further, a slide permission / prohibition switching portion 31d, which is a region having the same width dimension as the narrow width portion 31b, is formed at a front portion of the locked portion 31c. This slide permission / prohibition switching section 3
An opening 31h is formed in 1d at one front part and the other rear part in the left-right direction. Slide permission / prohibition switching section 31d
In the sensor chip 31 that moves forward and backward in response to the operation of the push button 34, is a portion that moves across the frame portion 29a of the sensor plate 29. A head portion 31e having the narrowest width is formed on the front end side of the slide propriety switching portion 31d. On the other hand, behind the intermediate portion 31a, the width dimension is gradually narrowed from the intermediate portion 31a,
A stopper mounting portion 31f and a rear extending portion 31g are formed.

The sensor chip 31 is inserted through the intermediate support hole 30b of the leader center board 30, and the insertion hole 25a in the leader case 25 is further inserted.
The head portion 31e is assembled so as to project forward. Then, the push button spring 33 is contracted on the outer periphery of the head portion 31e, and the push button 34 has the tongue-shaped protrusion 34a.
34a is inserted into the rectangular holes 25b and 25b of the leader case 25 and assembled. On the other hand, on the rear end side of the sensor chip 31, that is, on the outer periphery of the stopper mounting portion 31f projecting rearward from the leader center board 30, a chip setting spring 35 made of a conical coil spring is provided.
The leader case cover 32 is provided behind it and the number changing panel 93 is provided behind it. As will be described later, in the case of a specific sensor chip 31, the tip setting spring 3
Before the assembly of 5, the stopper chip 36 is fitted onto the stopper mounting portion 31f of the sensor chip 31.

The leader case cover 32 is attached to the rear end surface of the leader case 25, as shown in FIG.
A round hole 32a for supporting the rear end side of each sensor chip 31 ...
... has been drilled. Out of these round holes 32a, spring holding convex portions 32b projecting rearward are formed on outer peripheral portions of the round hole 32a on one side in the left-right direction in the upper part and the round hole 32a on the other side in the left-right direction in the lower part. ing.
Further, the leader case cover 32 is formed with fitting holes 32d, 32d and engaging pieces 32c, 32c at an upper portion and a lower portion in a central portion in the left-right direction.
Screw holes 32e and 32e are formed between 32c.

The panel locking spring 92 is formed of a leaf spring and is provided in the screw hole 32 of the leader case cover 32.
It is attached to the leader case cover 32 by screws 95 and 95 screwed to the e and 32e. The panel locking spring 92 has a locking portion 92a protruding upward at the rear portion.
And a pressing portion 92b that extends rearward and obliquely downward from the locking portion 92a.

The number changing panel 93 has round holes 93a ... Corresponding to the round holes 32a of the leader case cover 32, and locking square holes 93b through which the rear portion of the panel locking spring 92 can be inserted. And the number change panel 93
As shown in FIG. 14, the engaging pieces 96e
It is assembled to the leader case cover 32 by a panel return spring 99 that is compressed between the leader case cover 32 and the leader case cover 32. In this state, each sensor chip 31 inserted in each round hole 93a
Does not project rearward from the number changing panel 93, so that the sensor chip 31 cannot be operated. Further, the locking square hole 93b is formed at a position slightly displaced downward with respect to the pressing portion 92b of the panel locking spring 92. As a result, when the number changing panel 93 moves forward, the panel locking spring 9
The rear part of the panel locking spring 92 is pushed to the upper edge part of the locking square hole 93b to rotate downward, and when the pressing part 92b passes through the locking square hole 93b, the rear part of the panel locking spring 92 is moved to the original position. The rearward movement of the number changing panel 93 is restricted by the locking portion 92a of the panel locking spring 92.

The above number changing panel 93 comprises a sensor chip cover panel 96 and a number display panel 97 attached to the rear surface of the sensor chip cover panel 96. The sensor chip cover panel 96 has a flat plate-shaped panel portion 96a, as shown in FIGS.
And a front protruding portion 96b, 96b which is formed at the center of the panel portion 96a in the left-right direction and which is formed by bending the upper portion and the lower portion forward. The panel portion 96a has a round hole 32a in which the spring holding convex portion 32b of the leader case cover 32 is formed.
Spring holding protrusions 96c, 96c projecting forward are formed in a portion corresponding to the round hole 93a, and a panel return spring 99 is compressed between the spring holding protrusions 32b, 96c. On the other hand, the front protrusions 96b and 96
In b, when the number change panel 93 moves forward,
A pressing surface 96 for slidingly contacting the pressed surface 27d of the reset bar 27 and pressing the pressed surface 27d to move the reset bar 27, that is, the reset operation body 26 upward.
d and the engagement piece 32c in the leader case cover 32
Engaging pieces 96e, 96e that engage with the 32c from the front side through the fitting holes 32d, 32d and prevent the detachment from the leader case cover 32 are formed.

As shown in FIG. 11, the number display panel 97 is the same as that attached to the push button 34 on the side of each round hole 93a corresponding to each push button 34 shown in FIG. 2 (a). The letters and numbers are attached.

Next, the positional relationship in the height direction of each component will be described with reference to FIG. 12 and FIG.

The reset operation body 26 is
Although it moves downward along the guide groove 30a of the leader center board 30, if any of the stopper tips 36 is set with the square locking portion 36b facing inward, FIG.
As shown in FIG. 3 and FIG. 14, the return stopping portion 27b is held in contact with the square locking portion 36b. In this case, each locking protrusion 28a of the reset bar spring 28
The sensor chips 31 and the sensor chips 31 are in a state where the height positions thereof are deviated from each other. On the other hand, when all the stopper chips 36 are set with the square locking portions 36b facing outward, the reset operation body 26 has the lower end surface of the protrusion 27a of the lower end portion of the guide groove 30a of the leader center board 30. Is held at the lower end position in contact with. At this position, the locking protrusions 28a of the reset bar spring 28 are located at the same height as the sensor chips 31 and are located close to the sensor chips 31 from the center side.

Further, although the sensor plate 29 is biased upward by the sensor plate springs 38, 38, the sensor plate 29 receives a pressing force larger than the spring force of the sensor plate spring 38 from the retractor 42 described later. . Therefore, the sensor plate 29
Is held at the lower end position of the sliding range, and at this position, one side end side of each sensor chip 31 is
The sensor plate 29 and the dummy plate 91 are arranged so as to intersect with each other in the notched concave portions 29b ... And 91b.

At this time, the dummy plate 91 is pushed upward by the sensor plate springs 38, 38 to a position where the engaging piece 91d engages with the locking piece 29i of the sensor plate 29, as shown in FIG. The lower edge portions of the recessed concave portions 91b ... Align with the lower edge portions of the notched concave portions 29b ... Of the sensor plate 29.

Next, the positional relationship of each of the above components in the front-rear direction will be described with reference to FIG. 1 showing a cross section taken along the line YY in FIG.

The coil diameter on the front end side of the tip setting spring 35 is equal to that of the intermediate portion 3 of the sensor chip 31.
It is set so as to come into contact with the shoulder portion between 1a and the stopper mounting portion 31f. Therefore, as shown by the sensor chip 31 on the left side of FIG.
Due to the spring force of the tip setting spring 35, the rear opening 31h of the slide allowance / disabling switching portion 31d is aligned with the frame portion 29a of the sensor plate 29, that is, the notch recess 29b in the front-rear direction (hereinafter,
This position is called the initial position). At this time, the cutout recess 91b of the dummy plate 91 is located at a position that matches the locked portion 31c of the sensor chip 31 in the front-rear direction.

On the other hand, when the push button 34 is pressed while the reset operation body 26 is held at the lower end position, the sensor chip 3 on the right side of FIG.
As indicated by 1, the sensor chip 31 is pushed rearward. At this time, the locked surface of the front end surface of the locked portion 31c of the sensor chip 31 changes so as to be positioned rearward of the bent portion of the locking projection piece 28a of the reset bar spring 28. After the pushing operation of the push button 34 is released, the sensor chip 31 has a position where the locked surface is engaged with the locking projection 28a of the reset bar spring 28 and is prevented from moving forward. (Hereinafter, referred to as a retracted position). In the retracted position, the front opening 31h of the slide allowance / disabling switch 31d is aligned with the notch recess 29b of the sensor plate 29 in the front-rear direction. At this time, the cutout recess 91b of the dummy plate 91
Is at a position that coincides with the opening portion of the slide allowance switching portion 31d of the sensor chip 31 in the front-rear direction.

Therefore, the pushing-down force from the later-described retractor 42 to the sensor plate 29 is released, and the spring force of the sensor plate spring 38 causes
When the sensor plate 29 is going to move upward from the lower end position, the opening 31h of all 14 sensor chips 31 must be in a state of intersecting the cutout recesses 29b of the sensor plate 29. If
The lower edge of each of these notched recesses 29b ... Is an opening 31h.
Can be climbed through. On the other hand, if even one of the 14 openings 31h is not located in the cutout recess 29b, the lower edge of the cutout recess 29b abuts the sensor chip 31 to prevent upward movement. It Therefore, in order to bring the sensor plate 29 into a state where the sensor plate 29 can be moved upward as described above, the sensor chip 31 mounted so that the opening 31h is located in the intersection region with the cutout recess 29b in the retracted position. ... to perform push-in operations on the push buttons 34 corresponding to these, that is, to perform push-button operations corresponding to preset unlocking combination numbers (hereinafter, this operation is referred to as matching push-button operations). ) Is required, and if even one push button operation for the unlocking combination number is insufficient, or if a push button 34 other than the above is pressed, the sensor plate 29 moves. It will be held in a blocked state.

The lower constituent members of the unlocking operation panel 6 mainly include a retractor hub 41, a retractor 42, a joint 44, a lower portion of the sensor plate 29, an unlocking retractor 45 and a long seat cover 46 shown in FIG. .

The retractor hub 41 is rotatably fitted in the insertion holes 21c and 22c on the lower end side of the frame 20. The retractor 42 is the retractor hub 4
1, a retractor spring 43 for urging the retractor 42 downward is provided on both sides in a contracted state so as to be vertically movable. An engaging surface portion 42a bent rearward is formed at an upper end portion of the retractor 42. The joint 44 is rotatably attached to the lower central side of the retractor 42.

The sensor plate 29 is assembled so that the face plate portion 29c, which is the lower portion thereof, overlaps the retractor 42 from the rear side. The face plate portion 29c of the sensor plate 29 and the frame portion 29a are connected to each other through a locking bent portion 29d so as to have a step in the front-back direction, and the locking bent portion 29d is connected to the retractor. It is assembled so as to come into contact with the locking surface portion 42a of 42 from below. In this case, the sensor plate 29 biased upward by the sensor plate spring 38 is held in a state in which it is pressed down by the locking surface portion 42a, so that the spring force of the retractor spring 43 is the sensor plate. It is set larger than the spring 38.
Further, a locking protrusion 29g formed by locally bending forward is formed on the lower portion of the face plate portion 29c.

The unlocking retractor 45 is superposed on the face plate portion 29c of the sensor plate 29 from the rear side and is arranged so as to be vertically movable. The unlocking retractor 45 is provided upright with an unlocking operation bar 45a having a mountain-shaped cross section extending rearward. The unlocking retractor 45 includes the guided projections 45b and 45b and the actuated projection 45c which are formed by bending forward on both the left and right sides and the central portion side.
Are fitted into slit-shaped guide grooves 29e, 29e, 29f formed in the sensor plate 29 to be assembled.

The long seat cover 46 is the unlocking operation bar 45.
a and a notch recess 46a, through which the cylinder lock 11 located on the lower side thereof is inserted, and a round hole 46b into which the rear end side of the retractor hub 41 is fitted, are fixed so as to cover the lower portion of the frame body 20. Has been done.

On the other hand, as shown in FIGS. 16 (a) and 16 (b), the door inner side fixing plate 7 has a long seat reinforcing plate 51 and a surface of the long seat reinforcing plate 51 in substantially the same manner as the frame body 20. The long seat 52 covering from the inside of the door, the long seat reinforcing plate 51, and the decorative cover 54 fixed by the decorative cover mounting screw 53 to cover the rectangular opening 52a formed in the long seat 52 from the inside of the door, the upper and lower ends of the long seat reinforcing plate 51. It is made up of caps 55 and 55 that are respectively attached to the.

Further, the door inner side fixed plate 7 is connected and fixed to the door inner side fixed plate 7 through the upper pulling leg 56 and the lower pulling leg 57 which are arranged through the door 1. ,
A keyless locking device 5 is configured.

The operation of the keyless locking device 5 having the above structure will be described below.

When the operating lever 8 is rotated, as shown in FIG. 17A, the retractor hub 41 rotates integrally with the angular core shaft 10, and the tilting portions on both sides of the retractor hub 41 are rotated. The retractor 42 is pushed up by inclining 41a and 41a from the horizontal state. As a result, the sensor plate 29 that has been prevented from moving upward by the locking surface portion 42a of the retractor 42 until then.
Changes to a state in which the pulling force by the sensor plate spring 38 acts.

If the aligning push button operation has been performed in advance, the engaging surface portion 4 of the retractor 42 will be described.
The sensor plate 29 rises integrally with the retractor 42 while maintaining the state in which the locking bent portion 29d is in contact with 2a from the lower side. On the other hand, the dummy plate 91 slightly moves up together with the sensor plate 29 in the initial stage of the ascending operation of the sensor plate 29, but the notch recess 91b.
When the lower edge portion collides with each sensor chip 31, it is prevented from rising, and is held in the lower position in contact with the sensor chip 31.

When the above-described upward movement of the sensor plate 29 occurs, the upper end of the joint 44 attached to the retractor 42 comes into contact with the actuated projection 45c of the unlocking retractor 45 from below. As a result, thereafter, the unlocking retractor 45 is also pushed upward, and therefore, the unlocking operation bar 45a moves upward.

On the other hand, when the aligning push button operation is not performed, even if the retractor 42 is moved upward,
The sensor plate 31 is prevented from moving upward by the sensor chip 31, and is held in a state where the lower edge portion of the cutout recessed portions 29b ... Abuts on the opening portion of the slide allowance switching portion 31d of the sensor chip 31. In addition, the dummy plate 9
1 also has notched recesses 91b ...
1 is held in contact with 1.

At this time, as shown in FIG.
Joint 44 attached to the retractor 42
The engaging surface portion 44a extending to the left during the ascent.
Comes into contact with the lower end of the locking projection 29g of the sensor plate 29 to rotate counterclockwise about the joint knock 44b, which causes the unlocking retractor 45 to rotate.
The contact with the actuated projection 45c from below does not occur. As a result, the unlocking retractor 45 does not move upward, and the unlocking operation bar 45a is held immovably.

As described above, in the keyless locking device 5, when the operating lever 8 is operated after the alignment push button is operated, the unlocking operation bar 45a is moved upward. The deadbolt 3 is retracted in the lock 4 in conjunction with the unlocking operation bar 45a. Next, the lock 4 will be described with reference to FIG.

The lock 4 is constructed by attaching a box-shaped case 63 installed in the door 1 to a rectangular plate-shaped front 61 fixed along the side end surface of the door 1, and in the case 63, A dead bolt 3 and a latch bolt 2 are provided so as to be slidable in the left-right direction in the drawing.

Above the dead bolt 3, there is provided a dead hub 73 fitted on the cylinder tail 11b of the cylinder lock 11. By rotating the cylinder tail 11b, the dead hub 73
The arm portion 73b extending from the outer periphery of the cylindrical portion 73a of the dead bolt 3 into the recess 3a on the upper surface of the dead bolt 3 allows the dead bolt 3 to be switched from the unlocked position shown to the locked position where the front end projects from the front 61. Done.

The unlocking operation bar 45a is located above the dead hub 73, and when the bar is moved upward, the right end side of the substantially L-shaped joint 82 is pushed up. As a result, the joint 82 has a shaft fulcrum 8
A rotation operation of three turns occurs, and the left end side is pushed down. The lower left end of the joint 82 is connected to the joint transmission gear 79.
In FIG. 9, a clockwise turning motion is generated around the shaft fulcrum 81 on the left end side. This rotation operation causes the dead hub 73 to rotate counterclockwise through the toothed portions 79a and 73d that mesh with each other between the joint transmission gear 79 and the dead hub 73, whereby the dead bolt 3 is locked at the locking position. From this, the immersive motion to the unlocked position occurs.

In this way, in the locked state where the dead bolt 3 of the lock 4 is projected, when the operation lever 8 is operated after the operation of the aligning push button in the keyless locking device 5, the unlocking operating bar 45a moves upward. And the dead bolt 3 is retracted and a switching operation to the unlocked state occurs. At this time, at the same time, the latch hub 65 in which the square core shaft 10 is inserted and rotated also causes the latch bolt 2 to be retracted, so that the door 1 is opened and closed.

Further, in the keyless locking device 5,
When the operating lever 8 is operated, each component is automatically returned to the initial position.
That is, as described above, when the retractor hub 41 is rotated and the retractor 42 is moved upward together with this, the reset operation body 26 is also moved up with a slight delay. That is, as shown in FIG.
2 The lower end surface 27d of the reset bar 27 is located slightly above the engaging surface portion 42a at the upper end, and the engaging surface portion 42a abuts against the lower end surface 27d from below and pushes it up. ing.

As the reset operation body 26 rises in this manner, the locking projections 28a ... Of the reset bar spring 28 move above the sensor chips 31. As a result, the pushing operation of the push button 34 is performed in advance, and the sensor chip 31 held in the retracted position is released from the locked state by the locking projection 28a. Therefore, when the sensor plate 29 is in an immovable state, that is, when the alignment push button operation is not performed, the cutout recesses 29b ... Of the sensor plate 29 are located at the same height position as each sensor chip 31. At that time, the sensor chip 31 is returned to the initial position through the cutout recesses 29b ... By the spring force of the chip setting spring 35.

On the other hand, when the sensor plate 29 rises with the upward movement of the retractor 42, that is, when the aligning push button operation has been performed in advance, the sensor chip 31 located in the retracted position first The rear edge portion of the opening 31h is the cutout recess 29 of the sensor plate 29.
While moving forward until it comes into contact with the wall surface between b and 29b, and then the hand is released from the operating lever 8 to return the operating lever 8 to the initial position, the retractor 4 and the retractor 4 are integrally formed with this.
2 and the sensor plate 29 are respectively lowered and when the height positions of the cutout recesses 29b are the same as those of the sensor chips 31, the cutout recesses 29b are returned to the initial positions through the cutout recesses 29b.

When the retractor 42 descends as described above, the reset operation body 26 also descends integrally with the retractor 42. However, in the middle of the process, the stopper chip 36 and the return operation blocking portions 27b, 27b of the reset bar 27 prevent the lowering operation, whereby the respective locking projections 2 of the reset bar spring 28 are prevented.
8a ... Are held at a height position before returning to the same height position as each sensor chip 31.

That is, as shown in FIG. 9, the stopper chip 36 is the stopper mounting portion 3 of the sensor chip 31.
It has a disk portion 36a fitted on the outer peripheral surface of 1f and a rectangular locking portion 36b protruding laterally from its peripheral edge. This stopper chip 36 can be attached to any sensor chip 31, and in the present embodiment, as shown in FIG. 13, push buttons 34 of A to D ... rear sensor chip 31.
It is attached to ... A / B / D push buttons 3
4 ... The stopper tip 36 attached to the rear sensor tip 31 is attached with the square locking portion 36b facing outward, so that the function actually works is that the C push button 34 ... Only the stopper chip 36 attached to the sensor chips 31 ...

As described above, the rectangular locking portion 36b is inward,
That is, by setting the orientation toward the reset operation body 26 side, as shown by the sensor chip 31 on the right side in FIG.
7 is positioned to overlap with the side region of the return operation blocking portion 27b in No. 7 in the vertical direction. Therefore, the reset operation body 26 rises together with the retractor 42 as described above, and the sensor chip 31 returns to the initial position or reaches a position where it comes into contact with the wall surface of the frame portion 29a of the sensor plate 29 after the alignment push button operation. When it moves forward, then the retractor 41
The reset operation body 26 that descends with the descending operation of the
Then, the side portion side of the return movement preventing portion 27b comes into contact with from above,
It is held in a state in which the descending operation thereafter is blocked.

Therefore, in order to perform the aligning push button operation thereafter to bring the sensor plate 29 into the slidable state, the C push button 34 is moved first, and the square locking portion 36b is moved inward. If there is the sensor chip 31 to which the stopper chip 36 is attached, it is necessary to operate the push button 34 for moving the sensor chip 31 rearward at the same time as the push button 34 of C. That is, FIG.
As shown in the sensor chip 31 on the right side of FIG. 3, the sensor chip 31 is moved backward, so that the descending operation blocking state of the reset operation body 26 by the sensor chip 31 is released.

Thereafter, the sensor chip 31 behind the push button 34 of C is held in the retracted position by the locking projection 28a of the reset bar spring 28, and then the remaining alignment with respect to the other sensor chips 31. By performing each push button operation, the sensor plate 29 can be brought into a slidable state.

As described above, in the keyless locking device 5, the push button 34 for moving the sensor chip 31 to which the stopper chip 36 is attached rearward with the square locking portion 36b facing inward is another push button. It is necessary to press the push buttons 34 at the same time before 34 ... And when there are a plurality of push buttons 34. As described above, the keyless locking device 5 cannot be unlocked by simply performing the push button operation corresponding to the unlock combination number.
Since the procedure and the condition of simultaneous operation are necessary, by any chance,
Even if the unlocking combination number is known to others, the function as the locking device is ensured.

In the keyless locking device 5, the user himself / herself can easily change the unlocking combination number by rotating the sensor chip 31 by 180 °. This operation will be described below.

First, the decorative cover 54 on the door inner side fixing plate 7 is removed, and the central portion of the number changing panel 93 is pushed forward through the rectangular opening 52a and the through opening of the door 1.
Here, when the reset operation body 26 is at the lower end position, as shown in FIG.
The pressing surfaces 96d and 96d of 6b and 96b are in contact with the pressed surfaces 27d and 27d of the pressed portions 27c and 27c of the reset operation body 26. Further, each locking projection piece 28a of the reset operation body 26 is at the same height position as the corresponding sensor chip 31, and the panel locking spring 92 is provided.
Is in a state in which the rear end of the pressing portion 92b is inserted into the locking square hole 93b of the number changing panel 93.

Therefore, when the number changing panel 93 is pushed forward, the reset operation body 26, as shown in FIG.
The pressed surfaces 27d and 27d of the pressed portions 27c and 27c are moved upward by being pressed by the pressing surfaces 96d and 96d of the front protruding portions 96b and 96b. In this process, the rear portion of the panel locking spring 92 is pressed by the pressing portion 92b.
Rotates downward when it comes into contact with the upper edge of the locking square hole 93b, and returns to its original position when the pressing portion 92b passes through the locking square hole 93b. Therefore, when the forward pressing force on the number changing panel 93 is released, the number changing panel 93 is biased by the panel return spring 99 and moves rearward. It is locked by the locking portion 92a of the locking spring 92 and is prevented from moving rearward.

In the above state, the reset operation body 26
Each locking protrusion 28a is located above the corresponding sensor chip 31, and each sensor chip 31 has a rearward extending portion 31g largely protruding rearward from the round hole 93a of the number changing panel 93.

Next, as shown by the sensor chip 31 on the right side in FIG. 1, the rear extending portion 31g is grasped from the rear side, and as shown by the chain double-dashed line in the figure, the narrow width portion is located at the position of the intermediate support hole 30b. After pulling out so that 31b is positioned, this sensor chip 31 is rotated 180 °. Then, the sensor chip 31 is inserted into the intermediate support hole 30b and the intermediate portion 31
Return so that a is positioned.

When the sensor chip 31 is completely rotated, the pressing portion 92b of the panel locking spring 92 is pressed.
By pressing, the number changing panel 93 can be returned to the original rear position.

By the above-described operation, the sensor plate 29 can be slid at the retracted position, and the sensor plate 29 can be slid at the retracted position to the non-sliding state, and vice versa. This can be performed for each sensor chip 31. As a result, the unlocking combination number
It can be appropriately changed according to the user's request.

Further, in the reset operation body 26, the dimension D in the opening direction of both the left and right opposed locking projections 28a, 28a is set by the spring angle 94, so that the dimension D is highly accurate. It is easy to obtain and the reset bar spring 28 is easily manufactured. That is, when the spring angle 94 is not provided, the reset bar spring 28 itself includes the left and right locking projections 28.
It is required to secure the dimension D of the a. 28a in the opening direction with high accuracy. To satisfy this requirement, the reset bar spring 28 is an elastic body, and each locking projection 28a
Is difficult because it is a small molding part. On the other hand, in the reset operation body 26, the above-mentioned dimension D is obtained by bringing the respective end edge portions 94a, 94a of the spring angle 94 into contact with the vicinity of the front end portion of each of the seven locking projection pieces 28a. Since it is secured, the reset bar spring 28 can be easily manufactured, and the dimension D can be obtained with high accuracy. In this case, the reset bar spring 28 is provided on both the left and right opposite locking protrusions 28a, 28a.
The dimension in the opening direction of the locking projection 28 is formed to be slightly larger than the standard dimension D, and each locking projection 28 is formed by the spring angle 94.
The dimension D is ensured by restricting the degree of spread of a.

Further, since the spring angle 94 is in contact with the locking projections 28a ... At the respective edge portions 94a, 94a, the above dimension D can be easily obtained with high accuracy.

Incidentally, in the structure for ensuring the dimension D as described above, as shown in FIG. 23, the dimension in the opening direction of both the left and right opposing locking projections 28a, 28a is more than the standard dimension D. The reset bar spring 28 is formed to be slightly narrow, and the spacer 1 is provided between the opposite locking projections 28a on both sides of the reset bar spring 28.
01 is inserted and both side edge portions 101 of the spacer 101 are inserted.
The dimension D may be ensured by bringing the a. 101a into contact with the vicinity of the front end of each locking projection 28a ... From the inside.

[0076]

As described above, in the keyless locking device of the present invention, the positioning spring member comes into contact with the vicinity of the front end portion of each locking projection piece or in the facing direction of each locking projection piece. It is a configuration in which a locking projection inter-part dimension setting member that restricts movement in the opposite direction and sets the spacing between the locking projections on one side and the other side to a predetermined dimension is provided.

Accordingly, even if the respective locking projections of the positioning spring member are displaced to some extent, the positions of the respective locking projections are set by the dimension setting member between the locking projections. Therefore, it is possible to set the interval between the locking protrusions on one side and the other side with high accuracy, and it is possible to easily manufacture the positioning spring member.

[Brief description of drawings]

FIG. 1 shows a keyless locking device according to an embodiment of the present invention, and is a cross-sectional view taken along the line YY in FIG. 13 when one push button is pressed.

2A and 2B are views showing the keyless locking device and a state in which the lock is attached to a door, wherein FIG. 2A is a front view seen from the outside of the door, and FIG. 2B is a side view.

FIG. 3 is an exploded perspective view showing a frame structure of an unlocking operation panel of the keyless locking device.

FIG. 4 is an exploded perspective view showing a configuration of a front portion side on an upper side of the unlocking operation panel.

FIG. 5 is an exploded perspective view showing a configuration of a rear portion side on an upper side of the unlocking operation panel.

FIG. 6 is an exploded perspective view of a reset operation body assembled in the unlocking operation panel.

FIG. 7 is a side view showing an assembled state of a reset bar spring and a spring angle in the reset operation body.

FIG. 8 is a cross-sectional view showing an assembled state of the reset bar spring and the spring angle in the reset operation body.

FIG. 9 is an exploded perspective view for explaining assembly of the sensor chip in the unlocking operation panel.

10 shows the sensor chip cover panel shown in FIG. 5, in which FIG. 10 (a) is a side view and FIG. 10 (b) is a front view.

11 is a front view of the number display panel shown in FIG.

FIG. 12 is a rear view showing components inside the door with respect to the leader case cover in the unlocking operation panel.

FIG. 13 is a partial sectional view showing the upper side of the unlocking operation panel,
In addition, it is a rear view showing the lower side with the long seat cover removed.

14 is a cross-sectional view taken along the line XX in FIG.

FIG. 15 is an exploded perspective view showing a configuration of a lower side of the unlocking operation panel.

16A and 16B show a door inner side fixing plate in the keyless locking device, wherein FIG. 16A is a vertical sectional view and FIG. 16B is a front view seen from the inside of the door.

FIG. 17 is a view showing an operation state of the lower side of the unlocking operation panel, FIG. 17A is a schematic diagram showing an operation after operation of an alignment push button, and FIG. 17B is a non-alignment push button. It is a schematic diagram which shows the operation | movement after operation.

FIG. 18 is a front view showing an internal structure of a lock used in combination with the keyless locking device.

19 is a cross-sectional view taken along the line ZZ in FIG.

20 is a diagram showing the keyless locking device shown in FIG.
FIG. 8 is a cross-sectional view showing a state where the right push button in the drawing is operated.

FIG. 21 is a schematic side view showing the positional relationship between the reset operation body and the number changing panel in the keyless locking device.

22 is a schematic side view showing a state where the number changing panel is operated from the state shown in FIG. 21. FIG.

23 is a cross-sectional view showing another positioning structure with respect to the positioning structure of the locking projection of the reset bar spring shown in FIG.

[Explanation of symbols]

5 Keyless Locking Device 6 Unlocking Operation Panel 26 Reset Action Body 28 Reset Bar Spring (Spring Member for Positioning) 28a Locking Protrusion Piece 28b Base 29 Sensor Plate (Slide Plate) 29b Notch Recess 31 Sensor Chip (Locking Body) 31h Opening 34 Pushbutton 94 Spring Angle (Dimension Setting Member between Locking Protrusions)

Claims (1)

[Claims] 1. A plurality of push buttons are arranged on the surface of an unlocking operation panel, and a push-down operation of the push buttons pushes a locking body from an initial position to a rearward retracted position and slides in an unlocking direction. Movement of the plate is restricted by the locking body that has moved to the initial position or the retracted position, and the locked body that is pushed to the retracted position has the locked portion and the locking projection of the positioning spring member. The engaging projections are retained in the retracted position by engaging, and the locking projections of the positioning spring member are arranged in parallel on one side and the other side of the base and extend rearward from the base. In a keyless locking device in which a corresponding locking body is arranged on the side of the portion, the positioning spring member is brought into contact with the vicinity of the front end portion of each locking projection piece and each locking projection piece Of the locking projections on one side and the other side by restricting the movement of the A keyless locking device characterized in that a dimension setting member between locking protrusions is provided for setting a space between the locking protrusions to a predetermined dimension.