KR101123180B1 - Door lock opening and closing apparatus - Google Patents

Abstract

PURPOSE: A door-lock opening or closing apparatus is provided to stably operate a door-lock opening or closing apparatus by including simple structure according to the rotation movement of an internal handle at a digital door-lock apparatus. CONSTITUTION: A triangle letch(60) and a rectangular letch(70) are installed at the one end unit of a door including a digital door-lock apparatus. The triangle letch and the rectangular letch are included in an internal body(10) in order to operate the locking or unlocking process of a door. A door-lock opening or closing apparatus includes a motor(45), an operating gear(46), a driven gear(58), an interlink member(50), rotation members(80, 90, 82), and an operating member(68).

Description

Door lock opening and closing device {DOOR LOCK OPENING AND CLOSING APPARATUS}

The present invention relates to a door lock opening and closing device, and more particularly, to a door lock opening and closing device for allowing a simpler and smoother operation of a structure for interlocking a triangular latch and a square latch according to a rotation operation of an inner handle in a digital door lock. It is about.

      In general, the digital door lock electronically controls the mechanical locking and unlocking mechanism, thereby improving the user's convenience and strengthening the locking function of the door lock, and in particular, opening the door by inputting fingerprint recognition or password. According to the method, it is possible to prevent the accidental opening of the door by a universal key, a replica key, or the like, and has high reliability.

      Thus, the digital door lock is installed in various places including entrance doors, office doors, and the like of apartments and officetels, thereby effectively restricting the access of arbitrary outsiders.

      Herein, the digital door lock as described above will be described. As is well known, the digital door lock includes an inner body and an outer body, and triangular and square latches operated by a predetermined mechanism are provided inside the door. Built-in internal body is installed.

      In addition, the inner body and the outer body, respectively, the inner handle and the outer handle associated with the inner body is installed in combination, when opening the door from the outside to operate the password operation panel of the door outer body to release the square latch first The door is opened by rotating the outer handle so that the triangular latch is released.

      In addition, when the door is opened from the inside, as the inner handle on the inner side of the door is rotated, the triangular and square latches are interlocked by a predetermined mechanism to simultaneously release the door.

Domestic Patent No. 10-0669495

However, in the conventional digital door lock as described above, in the structure in which the triangular latch and the square latch are interlocked according to the manipulation of the inner handle, a large number of parts and a complicated structure are required to implement the corresponding mechanism for interlocking. Since the manufacturing and assembly processes are also complicated, there is a problem in that productivity and economic efficiency are reduced.

Accordingly, the present invention has been made to solve the above-mentioned problems, the object of the present invention is to design a mechanism for interlocking the triangular latch and square latch in accordance with the rotation operation of the inner handle in the digital door lock to a specific structure To provide a door lock opening and closing device to have a simpler structure and stable operation.

      The door lock opening and closing device according to the present invention for achieving the above object is installed in the door in which the digital door lock is installed, provided with a predetermined space therein, the triangular latch hole and the square latch hole is formed on one side thereof. In addition, the central protrusion, the rotating shaft, and the lower protrusion are protruded from the center and the bottom of the bottom, respectively, and a rectangular latch guide rail and a triangular latch guide rail are formed along the horizontal direction of the bottom, respectively. A lower body having an interlocking member guide hole and a rotating member guide hole respectively drilled therein; A cover coupled to the open upper surface of the inner body and having a perforated linking member guide hole and a rotating member guide hole at points corresponding to the inner body; A printed circuit board provided on the bottom surface of the inner body to electronically control the digital door lock, and having a square latch operation detection switch, an internal handle operation detection switch, and a rotation detection unit; A rectangular latch which is installed to be pulled into and out of the rectangular latch hole of the inner body, has an extension portion formed at one side thereof, and a latch groove formed at an end side thereof; A triangular latch which is installed to be pulled in and out of the triangular latch hole of the inner body, an extension part is formed at one side, and a latching groove is formed between the pair of stepped ends at its end side; A return spring for applying a restoring force toward the outside to the triangular latch; A motor for applying a driving force for the operation of the rectangular latch by the control of the printed circuit board, and a rotating gear having a driving gear; The inner body and the interlocking member guide hole of the cover is installed in a rotatable state, one side of the engaging portion and the close contact is formed integrally protruding, the end side of the driven gear is installed in engagement with the drive gear of the motor An interlocking member; The inner body and the rotatable member is installed in a rotatable state through the guide hole, and a triangular latch operation protrusion is protruded at one side thereof, and a triangular latch operation hole is formed in the center through the first rotation. A member and a third rotating member; It is seated in a rotatable state between the first rotating member and the third rotating member, and a triangular and square latch operation hole having a smaller size than the triangular latch operation hole is formed in the center, and a triangular latch is formed at one side. A second rotating member protruding from the operating protrusion and the square latch operating protrusion to form a predetermined angle, respectively; The plane has a "┓" shape, is installed in a rotatable state on the rotating shaft of the inner body, one end side is located in the engaging groove of the triangular latch and the other end side is a triangular of the first to third rotating member Characterized in that it comprises an operating member configured to operate in conjunction with the latch operation projection in contact with;

      Preferably, the lead portion of the triangular latch has a rotatable structure, and the inner handle of the door is configured to be selectively installed on any one of the first rotation member or the third rotation member, the installation direction of the inner body Characterized in that configured to be freely changeable.

      In addition, a plurality of cover engaging projections are formed on the inner surface of the side member of the inner body, and the cover corresponding thereto is characterized in that the intermittent groove is formed.

      Preferably, the upper side of the interlocking member is formed with a rotation guide projection protruding, the center hole of the driven gear corresponding thereto is characterized in that the rotational limiting jaw is formed so as to form a predetermined angle in the extended state .

      And, the end side of the interlocking member is characterized in that the manual lever installation hole is provided.

      More preferably, an elastic spring installation protrusion is formed at one side of the outer circumferential surface of the interlocking member and an inner body adjacent thereto, and the pair of elastic spring installation protrusions are configured to fix both ends of the elastic spring. At the time of rotation of the member, after the rotation of the interlocking member 50% or more is made by the action of the elastic spring is characterized in that the remaining rotation is made to reach 100% rotation.

According to the present invention made as described above, by designing a mechanism for interlocking the triangular latch and the square latch in accordance with a specific structure in accordance with the rotation operation of the inner handle in the digital door lock, the door lock opening and closing device is simpler and more robust structure In addition, there is an effect that a more smooth operation can be made during the operation of the inner handle.

In addition, the triangular latch is designed to be rotatable and the inner handle can be selectively installed on the front and rear of the inner body, so that the digital door lock and the inner body can be installed at various positions depending on the installation environment. There is also a useful effect that can be installed by transforming in the direction.

1 is a perspective view schematically showing a state in which a door lock opening and closing device is installed in a door according to the present invention;
Figure 2 is a perspective view showing the configuration of the door lock opening and closing device according to the present invention,
Figure 3 is an exploded perspective view showing the configuration of the door lock opening and closing apparatus according to the present invention,
4 is a view showing a state in which the inner handle and the outer handle is installed on the first to third rotating member of the door lock opening and closing device according to the present invention,
5 is a plan view showing the configuration of a door lock opening and closing device according to the present invention;
6a and 6b are a plan view and a partial perspective view showing an operating state when operating the inner handle of the door lock opening and closing device according to the present invention;
7A and 7B are a plan view and a partial perspective view showing an operating state at the time of the external handle operation of the door lock opening and closing device according to the present invention.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically showing a state in which the door lock opening and closing device is installed in the door, Figure 2 is a perspective view showing the configuration of the door lock opening and closing device according to the present invention, Figure 3 is a configuration of the door lock opening and closing device according to the present invention 4 is a perspective view illustrating a state in which an inner handle and an outer handle are installed in first to third rotating members of the door lock opening and closing device according to the present invention, and FIG. 5 is a plan view showing the configuration of the door lock opening and closing device according to the present invention. 6A and 6B are a plan view and a partial perspective view showing an operating state of the door lock opening and closing device according to the present invention when operating the handle, and FIGS. 7A and 7B show an operating state of the door lock opening and closing device according to the present invention during operation. Top view and partial perspective view.

First, the door lock opening and closing device according to the present invention is provided in the inner body 10 is built in the one end side of the door 100, the digital door lock is installed triangular latch (60) to perform the blockage / unlocking of the door and By designing a mechanism for interlocking the square latch 70 to a specific structure, it is implemented by allowing a simpler and more stable mass.

To this end, the door lock opening and closing device according to the present invention, the triangular latch 60 and the square latch 70, the motor 45 and the drive in a specific structure in the inner body 10 installed inside the door in which the digital door lock is installed. The gear 46, the driven gear 58, the interlocking member 50, the first to third rotating members 80, 90, 82, the operating member 68, and the like are installed.

      The inner body 10 is provided with a predetermined space therein so that the above-described components can be configured in a specific structure, the triangular latch 60 and the square latch 70 is drawn in and out on one side thereof. The triangular latch hole 12 and the square latch hole 14 are formed to be arranged up and down, and the central protrusion 26, the rotating shaft 25 and the lower protrusion 24 are respectively formed at the center and the bottom of the bottom surface of the body. It is formed in a protruding shape, and is formed by forming a rectangular latch guide rail 27a and a triangular latch guide rail 27b in the horizontal direction of the bottom surface, respectively.

      In addition, a cover 30 having a shape corresponding thereto is fixedly coupled to an open upper surface of the inner body 10, wherein a plurality of cover locking protrusions 16 are formed on an inner surface of a side member of one side of the inner body 10. Protrudingly formed, the end side of the cover 30 corresponding to the intermittent groove 32 is formed to be more easily coupled to each other is configured, the other side of the inner body 10 and the cover 30 On the other end side, screwing holes 28 and 38 for screwing are formed to correspond to each other.

      In addition, the interlocking member 50 and the first to third rotating members 80, 90, 82 are seated at a predetermined point of the bottom surface of the inner body 10 and the cover 30 corresponding thereto. The interlocking member guide holes 20 and 34 and the rotating member guide holes 21 and 36 are respectively drilled to be rotated.

      In addition, the inner body 10 and the cover 30 includes a plurality of body installation holes 18 and through holes 23, the cable installation holes 22, etc. so that the body is firmly installed in the door. Is formed.

      In addition, a printed circuit board 40 is installed on the bottom surface of the inner body 10 to control the digital door lock electronically. The printed circuit board 40 applies a driving force to the motor 45. In addition, in order to recognize the operation state of the specific parts, the square latch operation detection switch 41, the inner handle operation detection switch 42, the rotation detection unit 43 and the like is installed.

      The rectangular latch 70 has a structure in which a front end portion having a substantially rectangular parallelepiped shape can be pulled in and pulled out through a rectangular latch hole 14 of the inner body 10, and an extension portion 72 is provided at a rear end side thereof. It is formed, and the engaging groove 74 is formed in the end side of the concave.

      The triangular latch 60 is installed in the front end side having a substantially triangular cross section through the triangular latch hole 12 of the inner body 10 is installed in the structure that can be pulled in and out, the rear end side is formed with an extension portion The end side is provided with a locking groove 62 between the pair of struts 64.

      The front end side of the triangular latch 60 is made to have a structure that can selectively adjust its direction through the adjustment of the screw and the spring.

      In addition, a return spring 66 is provided on the rear end side of the triangular latch 60 to apply a restoring force in the withdrawal direction when the triangular latch 60 is drawn in.

      In addition, the motor 45 is fixedly installed on one side of the inner body 10 to apply a driving force for the operation of the square latch 70 under the control of the printed circuit board 40, and the drive shaft is driven on the rotating shaft. While the gear 46 is installed, the interlocking member 50 having a substantially cylindrical shape is mounted in a rotatable state through the interlocking member guide holes 20 and 34 of the inner body 10 and the cover 30. In the state, the interlocking member 50 is configured to engage with the drive gear 46 of the motor 45 after the driven gear 58 is seated and installed.

      On one side of the outer circumferential surface of the interlocking member 50 is located in the locking groove 74 of the square latch 70 to fit with the locking portion 53 and the second rotating member 90 for moving the square latch 70. A close contact portion 52 is formed and configured to touch and selectively interlock. A manual lever installation hole 54 is provided at the center of the upper end thereof, and a separate manual lever (not shown) is provided on the surface side of the cover 30. It is configured to be installed.

      In addition, a rotation guide protrusion 56 protrudes and is formed at one side of the upper end of the interlocking member 50, and the central hole of the driven gear 58 corresponding thereto is rotated so as to form a predetermined angle in a state where a portion thereof is extended. The jaw 58b is formed to have a structure in which the mutual rotation angles are adjustable, and the driven gear 58 has a rotation sensing protrusion 58a so that the rotational state thereof can be detected by the printed circuit board 40. Is formed to protrude downward.

      On the other hand, the elastic spring mounting projection (59a) is formed at one point of the outer peripheral surface of the interlocking member 50 and the inner body 10 adjacent thereto, the elastic spring (59) on the elastic spring mounting projection (59a) Both ends of are fixedly installed.

      When the interlocking member 50 is rotated by 50% or more by the action of the elastic spring 59, if the interlocking member 50 rotates more than 50%, the remaining rotation is caused by the action of the elastic spring 59. While the 100% rotation is achieved while the interlocking member 50 reaches the 100% rotation, the rotational state is maintained by external force.

      In addition, the first rotating member 80 and the third rotating member 82 are installed in a rotatable state through the rotating member guide holes 21 and 36 of the inner body 10 and the cover 30. The second rotating member 90 is installed between the first rotating member 80 and the third rotating member 82.

      The mounting protrusions 88 and the mounting grooves 89 are formed on the mutually corresponding surfaces of the first rotating member 80 and the third rotating member 82, respectively, so that they can be firmly coupled and interlocked with each other. One side of the triangular latch operation projection 86 is formed to protrude, the center of the triangular latch operation hole 84 is configured to pass through the square hole form.

      In addition, the second rotating member 90 installed in a rotatable state between the first rotating member 80 and the third rotating member 82 has a square having a smaller size than the triangular latch operation hole 84 at the center thereof. A triangular and square latch operation hole 92 having a hole shape is formed through, and one side of the triangular latch operation projection 86 and the square latch operation projection 94 is formed to protrude to form a predetermined angle, respectively.

      At this time, the square latch operation projection 94 of the second rotating member 90 is installed to abut on the contact portion 52 of the interlocking member 50, the first to third rotating members (80, 90, The triangular latch operation projection 86 of 82 is provided to abut against the operation member 68 to be described later.

      In addition, the square latch operation protrusion 94 of the second rotating member 90 has a structure that offsets the gap difference so that play does not occur when interlocking with the first to third rotating members 80, 90 and 82. Part of the furnace is preferably formed in a protruding form.

      On the other hand, the door lock opening and closing device according to the present invention has a structure in which the second rotating member 90 is installed between the first rotating member 80 and the third rotating member 82, the inner handle of the door 100 The 200 may be selectively installed on any one of the first rotating member 80 or the third rotating member 82, and the inner body 10, together with the above-described rotating structure of the triangular stretched portion, may be installed. The installation direction of the left and right can be freely changed structure.

      In addition, the first rotating member 80 and the third rotating member 82 is formed with a protruding edge portion of the body having a circular shape and a circular guide groove is formed on the corresponding surface in contact with the second rotating member, The second rotating member 90 is configured to be smoothly rotated without being separated between the first and third rotating members 80 and 82, and one step 87 is formed at one side of the protruding portion. The square latch operation protrusion 94 of the second rotating member 90 contacts the stepped portions of the first and third rotating members 80 and 82, and the second rotating member 90 rotates when the second rotating member 90 rotates. It is configured to interlock the first and third rotary members (80, 82).

      In addition, the operating member 68 is configured to be rotatably installed on the rotating shaft 25 of the inner body 10 in a state in which the shape of the plane has a substantially "대략" shape, the operating member 68 At one end side is located in the engaging groove 62 of the triangular latch 60, and the other end side is in contact with the triangular latch operation projection 86 of the first to third rotating members (80, 90, 82). It is configured to maintain the state, thereby rotating in conjunction with the rotation of the triangular latch operation projections 86 of the first to third rotary members (80, 90, 82) to move the triangular latch (60) before and after. It is configured to be.

On the other hand, the inner handle 200 and the outer handle 300 is applied to the door lock opening and closing device is designed in such a structure that the square slide (220, 320) can be pulled in and out from the handle shaft (210,310) of each handle, the spring ( 230 and 330 are inserted and installed, and the springs 230 and 330 and the square slides 220 and 320 may be operated when the inner handle 200 and the outer handle 300 are installed, regardless of the thickness of the door 100. It is configured to allow installation.

Next, the operation of the present invention as described above will be described in detail as follows.

      First, the door lock opening and closing device according to the present invention is installed inside the door in which the digital door lock is installed, interlocked according to the operation of the inner and outer body and the inner and outer handles 200 and 300 respectively installed on the inner and outer surfaces of the door. While selectively acting to open and close the door 100.

      At this time, in the state that the inner body and the outer body of the digital door lock is installed in the door 10, the rotating shaft of the outer handle 200 on the outer side of the door 100 passes through the outer body and one side door panel and then the inner body The rotary member guide hole 21 is inserted into the triangular latch operation hole of the first rotating member 80 and coupled thereto, while the rotating shaft of the inner handle 300 inside the door 100 is the inner body. After passing through the 10 and the other door panel through the rotating member guide hole 36 of the cover 30 through the triangular latch operation hole 86 of the third rotating member 82 and the second rotating member ( 90 is fitted into the triangular and square latch operation hole 92 is coupled.

      Thus, in order to release the door lock opening and closing device from the outside of the door 100, first, by operating a control panel provided on the outer body of the digital door lock to enter a predetermined password so that the square latch 70 is released as it is released. .

      That is, as a predetermined password is input through the operation panel, the motor 45 is driven under the control of the printed circuit board 40 to rotate the drive gear 46 coupled to the motor rotation shaft. The driven gear 58 and the interlocking member 50 engaged with each other rotate in a counterclockwise direction by a predetermined angle. Accordingly, the catching portion 53 of the interlocking member 50 also rotates in interlocking manner, and thus the catching portion 53 is rotated. It is to release the square latch by moving the locking groove 74 of the square latch 70 is located backward.

      As described above, after releasing the square latch 70 by manipulating the outer body, the triangular latch 60 is released by manipulating the outer handle 300, thereby opening the door 100.

      That is, when the outer handle 300 is rotated outside of the corresponding door 100, the first rotating member 80 coupled to the rotating shaft of the outer handle 300 interlocks and rotates in the counterclockwise direction. The triangular latch operation protrusion 86 of the rotating member 80 presses and rotates the operating member 68 at one end. As a result, the operating member 68 is rotated so that the locking groove 62 of the triangular latch 68 is rotated. As the other end of the operating member 68 located in the) moves the triangular latch 60 to the rear to release the triangular latch 60, the door 100 can be opened (Figs. 7A and 7B). Reference).

      Thereafter, as the rotation force applied to the outer handle 300 is released, the triangular latch 60 and the first rotating member 80 automatically return to their original positions by the action of the return springs 66.

      In addition, the unlocked state of the square latch 70 is detected through the square latch detection switch 41 and the rotation detecting unit 43, the control of the motor 45 through the printed circuit board 40 when a predetermined time elapses. Through the rectangular latch 70 is automatically returned.

      In addition, when the operation of the inner handle 200 is made during the operation of the motor 45, the control is sensed by the internal handle operation detection switch 42 to stop the function of the motor 45 automatically Will be done.

      On the other hand, in order to open the door 100 from the inside, when the inner handle 200 is rotated, the second rotating member 90 coupled to the rotation axis of the inner handle 200 is interlocked to rotate clockwise At the same time, the third rotating member 82 also rotates in conjunction.

       Accordingly, the triangular latch actuating projections 86 of the second rotating member 90 and the third rotating member 82 press one end of the operating member 68 to rotate the operating member 68. The other end of the operation member 68 positioned in the locking groove 62 of the triangular latch 60 moves the triangular latch 60 to the rear to release the triangular latch 60.

      In addition, at the same time, the square latch operation protrusion 94 of the second rotating member 90 rotates in contact with the contact portion 52 of the interlocking member 50 while applying a pressing force to the interlocking member 50. The locking groove 74 of the square latch 70 is rotated by a predetermined angle in the counterclockwise direction, and as a result, the locking portion 53 of the interlocking member 50 also rotates in association with the locking portion 53. The square latch 70 is released by moving the back (see FIGS. 6A and 6B).

      Similarly, when the rotational force applied to the inner handle 200 is released, the triangular latch 60 is returned to its original position by the action of the return springs 66, and the square latch 70 as the predetermined time elapses. Also controlled electronically and returned to its original position, the door 100 can be kept locked.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.

10: inner body, 12: triangular latch hole,
14: square latch hole, 16: cover locking projection,
18: body mounting hole, 20, 34: interlocking member guide hole,
21, 36: rotating member guide hole, 22: cable installation hole,
23: through hole, 24: lower protrusion,
25: axis of rotation, 26: central projection,
27a: triangular latch guide rail, 27b: triangular latch guide rail,
28,38: screw-in hole, 30: cover,
32: intermittent groove, 40: printed circuit board,
41: square latch operation detection switch, 42: internal handle operation detection switch,
43: rotation detection unit, 45: motor,
46: drive gear, 50: interlocking member,
52: close contact, 53: engaging portion,
54: manual lever mounting hole, 56: rotation guide projection,
58: driven gear, 58a: position sensing protrusion,
58b: rotational jaw, 59: elastic spring,
59a: elastic spring mounting projection, 60: triangular latch,
62: hanging groove, 64: sill,
66: return spring, 68: operating member,
70: square latch, 72: extension part,
74: locking groove, 76: detecting projection,
80: first rotating member, 82: third rotating member,
84: triangular latch operation hole, 86: triangular latch operation protrusion,
87: chin, 88: seating protrusion,
89: seating groove, 90: second rotating member,
92: triangle and square latch operation hole, 94: square latch operation protrusion,
100: door, 200: internal handle,
210,310: handle shaft, 220,320: square slide,
230,330: spring, 300: outer handle.

Claims (6)

It is installed inside the door where the digital door lock is installed, and a predetermined space part is provided therein, and triangular latch holes and square latch holes are formed at one side thereof, and a central protrusion and a rotating shaft and a lower protrusion part are formed at the center and the bottom of the bottom surface. Each protrusion is formed and a rectangular latch guide rail and a triangular latch guide rail are respectively formed along the horizontal direction of the bottom surface, and the inner body with the interlocking member guide hole and the rotating member guide hole respectively drilled on the upper and lower sides of the bottom surface. ; A cover coupled to the open upper surface of the inner body and having a perforated linking member guide hole and a rotating member guide hole at points corresponding to the inner body; A printed circuit board provided on the bottom surface of the inner body to electronically control the digital door lock, and having a square latch operation detection switch, an internal handle operation detection switch, and a rotation detection unit; A rectangular latch which is installed to be pulled into and out of the rectangular latch hole of the inner body, has an extension portion formed at one side thereof, and a latch groove formed at an end side thereof; A triangular latch which is installed to be pulled in and out of the triangular latch hole of the inner body, an extension part is formed at one side, and a latching groove is formed between the pair of stepped ends at its end side; A return spring for applying a restoring force toward the outside to the triangular latch; A motor for applying a driving force for the operation of the rectangular latch by the control of the printed circuit board, and a rotating gear having a driving gear; The inner body and the interlocking member guide hole of the cover is installed in a rotatable state, one side of the engaging portion and the close contact is formed integrally protruding, the end side of the driven gear is installed in engagement with the drive gear of the motor An interlocking member; The inner body and the rotatable member is installed in a rotatable state through the guide hole, and a triangular latch operation protrusion is protruded at one side thereof, and a triangular latch operation hole is formed in the center through the first rotation. A member and a third rotating member; It is seated in a rotatable state between the first rotating member and the third rotating member, and a triangular and square latch operation hole having a smaller size than the triangular latch operation hole is formed in the center, and a triangular latch is formed at one side. A second rotating member protruding from the operating protrusion and the square latch operating protrusion to form a predetermined angle, respectively; The plane has a "┓" shape, is installed in a rotatable state on the rotating shaft of the inner body, one end side is located in the engaging groove of the triangular latch and the other end side triangular latch of the first to third rotating member In the door lock opening and closing device comprising a; operating member configured to operate in conjunction with the operation projection in contact with;
The lead portion of the triangular latch has a rotatable structure, and the inner handle of the door can be selectively installed on any one of the first rotating member and the third rotating member, so that the installation direction of the inner body can be freely changed. Door lock opening and closing device characterized in that configured to. delete The method of claim 1,
A door lock opening and closing device, characterized in that a plurality of cover engaging projections are formed on the inner surface of the side member of the inner body, the cover corresponding thereto is formed with an interruption groove. The method of claim 1,
A door guide opening and closing device, characterized in that the rotating guide projection is formed on one side of the upper end of the interlocking member, and the central hole of the driven gear corresponding thereto is formed with a rotational limit jaw to form a predetermined angle in a state in which part of the interlocking member is extended. . The method according to claim 1 or 4,
Door end opening and closing device characterized in that the manual lever mounting hole is provided on the end side of the interlocking member. The method of claim 1,
One side of the outer peripheral surface of the interlocking member and a predetermined point of the inner body adjacent to the elastic spring installation projections are formed, the pair of elastic spring installation projections are configured so that both ends of the elastic spring is fixed,
When the interlocking member rotates 50% or more of the interlocking member, the door lock opening and closing device, characterized in that the remaining rotation by the action of the elastic spring is reached to reach 100% rotation.

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