CN113998570B

CN113998570B - Elevator device

Info

Publication number: CN113998570B
Application number: CN202110779451.XA
Authority: CN
Inventors: 渡边美香子; 石塚真介
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2020-07-28
Filing date: 2021-07-09
Publication date: 2023-03-17
Anticipated expiration: 2041-07-09
Also published as: CN113998570A; JP2022024571A

Abstract

The invention aims to make a door lock device of an elevator device compact. A door lock device (100) of an elevator device is provided with a first door lock device (110) and a second door lock device (120). The first door lock device (110) is provided with: a first hook (111) having a first concave-shaped portion (111 a); and a first hook receiving part (118) engaged with the first concave part (111 a). The second door lock device (120) is provided with: a second hook (121) having a second concave-shaped portion (121 a); and a second hook receiving part (128) engaged with the second concave part (121 a). The first concave part (111 a) of the first hook (111) has an engagement length (L1) which maintains the state that the waiting room side door (10) is closed and is engaged with the first hook receiving part (118), and the second concave part (121 a) of the second hook (121) has an engagement length (L2) which limits the door opening width of the waiting room side door (10) and is engaged with the second hook receiving part (128).

Description

Elevator device

Technical Field

The present invention relates to an elevator apparatus, and more particularly, to a door lock apparatus for an elevator apparatus.

Background

As a background art of the present invention, an unlocking device for a hall door of an elevator described in japanese patent application laid-open No. 2010-269895 (patent document 1) is known.

As described in paragraph 0025 and fig. 1, the unlocking device of patent document 1 is configured to open the hall door by inserting a key into a key guide hole of the hall door to rotate a door lock hook in a state where the hall door is not disposed to face the elevator car, and releasing engagement between a concave portion of the door lock hook and an engagement portion of the locking device. In this case, the open-width restricting hook does not apply a rotational force, and therefore, during the opening operation of the hoistway door, the hook abuts against the side portion of the stopper. Therefore, the opening operation of the hoistway door is limited to the door opening width corresponding to the distance between the end of the door opening width limiting hook and the side of the stopper. That is, the unlocking device of patent document 1 restricts the opening operation of the hall door so that the hall door does not open by more than a predetermined door opening width corresponding to the distance.

Prior art documents

Patent document

Patent document 1: japanese laid-open patent publication No. 2010-269895

In the unlocking device of patent document 1, as shown in fig. 1, the door lock hook and the door opening width regulating hook are arranged in a vertical direction, the locking device engaged with the recessed portion of the door lock hook is arranged on the left side with respect to the door lock hook, and the stopper abutting on the end portion of the door opening width regulating hook is arranged on the right side with respect to the door opening width regulating hook. Therefore, in the unlocking device of patent document 1, it is difficult to arrange the arrangement space in a wide range and in a small space. This is because the degree of freedom of design is limited in the newly installed elevator apparatus, and the conventional elevator apparatus cannot secure the arrangement space, and the unlocking apparatus may not be applied.

Disclosure of Invention

Problems to be solved by the invention

Hereinafter, in the present specification, a device corresponding to the unlocking device of patent document 1 will be referred to as a door lock device.

The invention aims to make a door lock device of an elevator device compact.

Means for solving the problems

In order to achieve the above object, an elevator apparatus according to the present invention includes an elevator car that ascends and descends in a hoistway, a lobby side door provided on a side of a lobby, and a door lock device that locks the lobby side door,

the door lock device includes: a first door lock device that locks the hall side door in a closed state; and a second door lock device which limits the door opening width of the side door of the lobby to a second door opening width smaller than the first door opening width in a fully open state when the door is opened,

the first door lock device includes: a first hook having a first concave portion at one end portion and configured to be rotatable about a first hook shaft; and a first hook receiving portion engaged with the first concave portion of the first hook,

the second door lock device includes: a second hook having a second concave portion at one end portion and provided to be rotatable about a second hook shaft; and a second hook receiving portion engaged with the second concave portion of the second hook,

the first concave portion of the first hook has a length of engagement with the first hook receiving portion to maintain the state where the hall side door is closed,

the second concave part of the second hook has a clamping length which limits the opening width of the side door of the waiting hall to the second opening width and is clamped with the second hook bearing part.

Effects of the invention

According to the present invention, the engagement length of the first concave portion of the first hook with the first hook receiving portion is set to the engagement length at which the waiting hall side door is maintained in the closed state, and the engagement length of the second concave portion of the second hook with the second hook receiving portion is set to the engagement length at which the door opening width of the waiting hall side door is limited to the second door opening width, whereby the arrangement space of components can be reduced, and the door lock device provided in the elevator device can be made compact.

Problems, structures, and effects other than those described above will be apparent from the following description of the embodiments.

Drawings

Fig. 1 is a side view (vertical cross-sectional view) showing an outline of an elevator apparatus 1 according to an embodiment of the present invention.

Fig. 2 is a plan view schematically showing the arrangement of the door lock device 100 of the elevator apparatus 1 according to the embodiment of the present invention with respect to the

doors

10 and 41.

Fig. 3 is a front view showing an outline of the configuration of the door lock device 100.

Fig. 4 is a front view showing a locked state of the door lock device 100 at the time of automatic opening and closing.

Fig. 5 is a front view showing an unlocked state of the door lock device 100 at the time of automatic opening and closing.

Fig. 6 is a front view showing a state of the door lock device 100 in a door-open state at the time of automatic opening and closing.

Fig. 7 is a front view showing a locked state of the door lock device 100 at the time of manual opening and closing.

Fig. 8 is a front view showing a first unlock state of the door lock device 100 at the time of manual opening and closing.

Fig. 9 is a front view showing a state in which the door lock device 100 is shifted from the first unlocked state to the second unlocked state in manual opening and closing.

Description of reference numerals:

1 … elevator device, 1a … hoistway, 4 … elevator car, 10 … lobby side door, 41 … car side door, 100 … door lock device, 102 … catch device, 110 … first door lock device, 111 … first catch, 111a … first catch 111 concave portion (first concave portion), 111b … first catch 111 claw portion, 111c … first catch shaft, 113 6258 zxft 58 first movable roller, 114 … first fixed roller, 118 … first catch portion (first upper lock portion), 118a 58 zxft 6258 first catch 118 protrusion portion, 120 … second door latch device, 121 … second hook, 121a … second concave-shaped portion of

second hook

121, 121b … second hook, 121 … pawl, 121c … second hook shaft, 123 … second movable roller, 124 … second fixed roller, 128 … second hook receiver (second upper lock portion), 128a … second hook receiver 128 protrusion, H … hall, la 6258 zxft 58 second door opening width, L1 … first concave-shaped portion engagement length, L2 … second concave-shaped portion 121a engagement length.

Detailed Description

Hereinafter, an elevator apparatus according to the present invention will be described with reference to the drawings. In the drawings, the same or similar components are denoted by the same reference numerals, and redundant description thereof is omitted. In the following description, the direction in which the elevator car 4 ascends and descends is a vertical direction (vertical direction) p (see fig. 1), and a direction perpendicular to the vertical direction is referred to as a horizontal direction.

The structure of the elevator apparatus 1 will be described with reference to fig. 1. Fig. 1 is a side view (vertical cross-sectional view) showing an outline of an elevator apparatus 1 according to an embodiment of the present invention.

The elevator device 1 includes: an elevator car 4 and a counterweight 5 which ascend and descend in the hoistway 1A; a hoist 3 around which a main rope, not shown, is wound; a car guide rail 6 provided upright on the hoistway 1A for guiding the elevator car 4 to ascend and descend; and a balance weight guide rail 7 vertically provided in the lifting passage 1 for guiding the lifting of the balance weight 5.

The elevator car 4 and the counterweight 5 are installed inside a hoistway 1A provided in a building, and are suspended in a bucket type by a main rope not shown. In the present embodiment, an example is shown in which the hoist 3 is disposed at the uppermost portion of the ascending/descending pathway 1A, but the position of the hoist 3 is not limited to the uppermost portion of the ascending/descending pathway 1A. The car guide rail 6 and the counterweight guide rail 7 are vertically provided along a wall surface (building wall) WA of a building forming the hoistway 1A.

The elevator apparatus 1 of the present embodiment is a traction type elevator apparatus, and frictionally drives a main rope by a hoist 3 to vertically move an elevator car 4 along a car guide rail 6 and vertically move a counterweight 5 along a counterweight guide rail 7. The car guide rail 6 and the counterweight guide rail 7 are fixed to a wall surface WA of the hoistway 1A by a rail bracket 8.

The hoist 3 is disposed in a machine room 1B provided at the uppermost portion of the hoistway 1A. In the machine room 1B, a control panel 2 is disposed for controlling the operation of the elevator apparatus 1 including the raising and lowering of the elevator car 4. The arrangement of the machine room 1B and the arrangement of the hoisting machine 3 and the control panel 2 are not limited to those of the embodiment, and other configurations may be adopted.

The hoistway 1A is formed in a building and is a lifting space in which the elevator car 4 and the counterweight 5 are lifted and lowered. The elevator car 4 is provided with a door 41 for passengers to get on and off at the front, an opening 1C is provided in a wall surface WA on the front side (the side of the hall H) of the hoistway 1A, and a door 10 is provided in the opening 1C.

Next, the

doors

10 and 41 and the door lock device 100 provided in the elevator apparatus 1 will be described with reference to fig. 2 and 3. Fig. 2 is a plan view schematically showing the arrangement of the door lock device 100 of the elevator apparatus 1 according to the embodiment of the present invention with respect to the

doors

10 and 41. Fig. 3 is a front view showing an outline of the configuration of the door lock device 100.

The door lock device 100 locks the door 10, and in fig. 2, the door lock device 100 is depicted as a plan view projected on a horizontal plane. Fig. 3 is a view of the door lock device 100 viewed from the direction indicated by the arrow III in fig. 2, and the position of the engaging device (engaging member) 102 when the elevator car 4 stops is indicated by a broken line 102.

The door 41 of the elevator car 4 is composed of two

door members

41A and 41B, and the door member 41A and the door member 41B are opened by being separated from each other from the left and right in the state shown in fig. 2. The door 10 on the side of the hall H provided in the opening 1C of the building wall WA is composed of two

door members

10A and 10B, and the door member 10A and the door member 10B are opened while being separated from each other from the left and right in the state shown in fig. 2.

In order to distinguish the door 41 of the elevator car 4 from the door 10 on the side of the hall H, the door 41 is referred to as a car side door, and the door 10 is referred to as a hall side door.

In the present embodiment, the car side door 41 and the lobby side door 10 are configured by two door members, but may be configured by one or three or more door members. The car side door 41 and the lobby side door 10 are configured such that a plurality of door members are opened while being separated from the center to the left and right sides, but may be configured such that they are opened from one end portion in the left-right direction (width direction) toward the other end portion.

The two door members (lobby side door members) 10A and 10B constituting the lobby side door 10 are supported by unillustrated door hangers disposed on the upper portion thereof and are linked so as to be opened and closed in synchronization by unillustrated link mechanisms. The door hanger, not shown, is provided integrally with the lobby

side door members

10A, 10B at the upper portions of the two lobby

side door members

10A, 10B, respectively.

The door lock device 100 includes a first door lock device 110 and a second door lock device 120. The first door lock device 110 is a door lock device that locks the hall side door 10 in a closed state, and the second door lock device 120 is a door lock device that limits the door opening width of the hall side door 10 to a door opening width (second door opening width) smaller than the door opening width in a fully open state (first door opening width) in a state where the first door lock device 110 is unlocked. The first door opening width is set to a size to the extent that a person cannot pass. The second door lock device 120 is a door lock device that limits the width of the door, and therefore may be referred to as a door width limiting device.

As shown in fig. 3, the first door lock device 110 includes: a hook 111, a movable roller 113, a fixed roller 114, and a door lock switch 118.

The hook 111 has a concave portion 111a formed at one end, and a claw portion 111b formed at one end (distal end) of the concave portion 111 a. The hook 111 is attached to a door hanger, not shown, via a shaft 111 c. The hook 111 is provided such that one end portion thereof, on which the concave portion 111a is formed, is rotatable about the shaft 111c with respect to the door hanger, that is, the lobby side door 10 (the lobby side door 10A in the present embodiment).

The movable roller 113 is provided such that a shaft 113a is held by the hook 111 and rotates together with the hook 111 about a shaft 111c of the hook 111 with respect to the door hanger. Therefore, the roller 113 is referred to as a movable roller.

The fixed roller 114 is attached to a door hanger, and the shaft 114a is fixed in position relative to the door hanger, i.e., the lobby side door 10 (the lobby side door 10A in the present embodiment). Thus, roller 114 is referred to as a fixed roller.

The door lock switch 118 is mechanically locked by engaging with the hook 111, and is electrically locked and checked. Therefore, the door lock switch 118 has a protrusion 118a that engages with the concave portion 111a of the hook 111. That is, the protrusion 118a of the door lock switch 118 constitutes an engagement portion that engages with the concave portion 111a of the hook 111.

On the other hand, the concave portion 111a of the hook 111 constitutes an engaging portion that engages with the protrusion 118a of the door lock switch 118. The hook 111 has a claw portion 111b at one end of the concave portion 111a, and the claw portion 111b engages with a side surface 118b of a projection portion 118a of the door lock switch 118, thereby preventing the hall side door 10 from being opened.

The door lock switch 118 is a receiving portion that receives the hook 111, and is referred to as an upper lock portion or a locking member because it has a function of mechanically locking.

As shown in fig. 3, the second door lock device 120 includes: a hook 121, a movable roller 123, a fixed roller 124, and an upper lock portion 128.

The hook 121 has a concave portion 121a formed at one end portion thereof, and a claw portion 121b formed at one end portion (distal end portion) of the concave portion 121 a. The hook 111 is attached to a door hanger, not shown, via a shaft 121 c. The hook 121 is provided such that one end portion thereof on which the concave portion 121a is formed is rotatable about the shaft 121c with respect to the door hanger, i.e., the lobby side door 10 (in the present embodiment, the lobby side door 10A).

The movable roller 123 is provided such that a shaft 123a is held by the hook 121 and rotates together with the hook 121 with respect to the door hanger around a shaft 121c of the hook 121. Therefore, the roller 123 is referred to as a movable roller.

The fixed roller 124 is attached to the door hanger, and the shaft 124a is fixed in position relative to the door hanger, that is, the lobby side door 10 (in the present embodiment, the lobby side door 10A). Thus, roller 124 is referred to as a fixed roller.

The upper lock portion (locking member) 128 is a receiving portion that receives the hook 121, and is engaged with the hook 121 to regulate the opening width of the hall side door 10. The upper lock portion 128 and the hook 121 restrict the opening of the hall side door 10, and thus can be regarded as a member or a device for mechanically locking the door. The upper lock portion 128 has a protrusion 128a that engages with the concave portion 121a of the hook 121. That is, the protrusion 128a of the upper lock portion 128 constitutes an engagement portion that engages with the concave portion 121a of the hook 121.

On the other hand, the concave portion 121a of the hook 121 constitutes an engaging portion which engages with the protrusion 128a of the locking portion 128. A claw portion 121b is provided at one end of the concave portion 121a of the hook 121, and the claw portion 121b engages with a side surface 128b of the protrusion 128a when the door is opened, thereby restricting the opening of the hall side door 10.

As described above, in the present embodiment, the first hook receiving portion (first upper lock portion) 118 has the protruding portion 118a that engages with the first concave portion 111a of the first hook 111, and the first hook 111 has the claw portion 111b, and the claw portion 111b is provided at one end portion of the first concave portion 111a and engages with the protruding portion 118a of the first hook receiving portion 118 to prevent the door opening of the hall side door 10. On the other hand, the second hook receiving portion 128 has a protruding portion 128a that engages with the second concave portion 121a of the second hook 121, and the second hook 121 has a claw portion 121b that is provided at one end portion of the second concave portion 121a and engages with the protruding portion 128a of the second hook receiving portion 128 to limit the door opening width of the lobby side door 10.

In the first door lock device 110, the hook 111, the concave portion 111a, the shaft 111c, the movable roller 113, the shaft 113a, the fixed roller 114, the shaft 114a, and the upper lock portion (hook receiving portion) 118 are sometimes referred to as a first hook 111, a first concave portion 111a, a first hook shaft 111c, a first movable roller 113, a first movable roller shaft 113a, a first fixed roller 114, a first fixed roller shaft 114a, and a first upper lock portion (first hook receiving portion) 118, in order to distinguish them from the respective members on the second door lock device 120 side.

In the second door lock device 120, the hook 121, the concave portion 121a, the shaft 121c, the movable roller 123, the shaft 123a, the fixed roller 124, the shaft 124a, and the upper lock portion (hook receiving portion) 128 are sometimes referred to as a second hook 121, a second concave portion 121a, a second hook shaft 121c, a second movable roller 123, a second movable roller shaft 123a, a second fixed roller 124, a second fixed roller shaft 124a, and a second upper lock portion (second hook receiving portion) 128 in order to distinguish them from the respective members on the first door lock device 110 side.

As described above, the elevator apparatus of the present embodiment includes the elevator car 4 that ascends and descends in the hoistway 1A, the lobby side door 10 provided on the side of the lobby H, and the door lock apparatus 100 that locks the lobby side door 10, and in the elevator apparatus 1,

the door lock device 100 includes: a first door lock device 110 that locks the hall side door 10 in a closed state; and a second door lock device 120 that restricts the door opening width of the hall side door 10 to a second door opening width La smaller than the first door opening width in the fully open state when the door is opened, wherein the first door lock device 110 includes: a first hook 111 having a first concave portion 111a at one end portion and provided to be rotatable about a first hook shaft 111 c; and a first hook receiving portion 118 engaged with the first concave portion 111a of the first hook 111,

the second door lock device 120 includes: a second hook 121 having a second concave portion 121a at one end and configured to be rotatable about a second hook shaft 121 c; and a second hook receiving portion 128 engaged with the second concave portion 121a of the second hook 121, the first concave portion 111a of the first hook 111 having an engaging length L1 with which the first hook receiving portion 118 is engaged while maintaining the closed state of the lobby side door 10,

the second concave portion 121a of the second hook 121 has an engagement length L2 that engages with the second hook receiving portion 128 and limits the door opening width of the hall side door 10 to the second door opening width.

As shown in fig. 3, the first door-lock device 110 and the second door-lock device 120 have substantially the same structure and arrangement. The difference between the first door lock device 110 and the second door lock device 120 is the difference between the length L1 of the first concave portion 111a and the length L2 of the second concave portion 121a, and the difference between the position of the protrusion 118a of the first upper lock portion 118 and the position of the protrusion 128a of the second upper lock portion 128 in the opening and closing direction of the lobby side door 10.

The first hook 111 and the second hook 121 are formed such that a second concave portion length L2 that determines an engagement length of the second concave portion 121a with the second hook receiving portion 128 is longer than a first concave portion length L1 that determines an engagement length of the first concave portion 111a with the first hook receiving portion 118. In this case, the first concave portion 111a of the first hook 111 has an engagement length L1 that maintains the closed state of the lobby side door 10, and the second concave portion 121a of the second hook 121 has an engagement length L2 that enables the lobby side door 10 to be opened to the first open width.

The first door-lock device 110 and the second door-lock device 120 are arranged side by side in the vertical direction.

The position of one end portion (claw portion 121 b) of the second concave portion 121a positioned on the left side in fig. 3 is the same as the position of one end portion (claw portion 111 b) of the first concave portion 111a positioned on the left side in fig. 3. On the other hand, the position of the other end portion of the second concave portion 121a positioned on the right side in fig. 3 is different from the position of the other end portion of the first concave portion 111a positioned on the right side in fig. 3. That is, the position of the other end portion of the second concave portion 121a is shifted to the right in fig. 3 from the position of the other end portion of the first concave portion 111a, and the length L2 of the second concave portion 121a is longer than the length L1 of the first concave portion 111a according to the shift.

On the other hand, in regard to the difference between the position of the protrusion 118a of the first upper lock portion 118 and the position of the protrusion 128a of the second upper lock portion 128, the protrusion 128a of the second upper lock portion 128 is located at a position shifted to the right in fig. 3 from the protrusion 118a of the first upper lock portion 118. The protruding portion 128a of the second upper lock portion 128 restricts the opening width of the hall side door 10 by engaging the side surface 128b thereof with the second hook 121. The protruding portion 118a of the first upper lock portion 118 is locked so that the lobby side door 10 cannot be opened by engaging the side surface 118b thereof with the first hook 111. In the opening/closing direction of hall side door 10, side surface 128b of projection 128a of second upper lock portion 128 is located at a position shifted to the right in fig. 3 by length La from side surface 118b of projection 118a of first upper lock portion 118. In this case, when the engagement of the first concave portion 111a of the first upper lock portion 118 with respect to the protrusion 118a is released, the second hook 121 can move to the right in fig. 3 by the length La in a state where the second concave portion 121a is engaged with the protrusion 128a of the second upper lock portion 128.

As described above, in the present embodiment, the protrusion 118a of the first hook receiving portion (first upper lock portion) 118 and the protrusion 128a of the second hook receiving portion (second upper lock portion) 128 are disposed at different positions in the door opening direction of the lobby side door 10 and in the vertical direction, and the claw portion 111b of the first hook 111 and the claw portion 121b of the second hook 121 are disposed at the same position in the door opening direction of the lobby side door 10 and are disposed at different positions in the vertical direction. In this case, the projecting portion 128a of the second hook receiving portion 128 is disposed on the other end portion side of the second concave portion 121a opposite to the one end portion provided with the claw portion 121b with respect to the projecting portion 118a of the first hook receiving portion 118 in the door opening direction of the hall side door 10.

The first door-lock apparatus 110 and the second door-lock apparatus 120 have the same structure and configuration except for the above-described differences. That is, the first hook 111 and the second hook 121 are formed in the same shape except for the first concave portion 111a and the second concave portion 121 a.

In addition, in the present embodiment, the first door lock device 110 includes: a first movable roller 113 provided to be rotatable together with the first hook 111; and a first fixing roller 114 whose position is fixed with respect to the lobby side door 10,

the second door-lock device 120 has: a second movable roller 123 provided so as to be rotatable together with the second hook 121; and a second fixing roller 124 whose position is fixed with respect to the lobby side door 10.

In this case, the second hook 121, the second hook shaft 121c, the second movable roller 123, and the second fixed roller 124 of the second door lock device 120, and the first hook 111, the first hook shaft 111c, the first movable roller 113, and the first fixed roller 114 of the first door lock device 110 are arranged so as to overlap with one another when the position of either the second door lock device 120 or the first door lock device 110 is shifted in the vertical direction.

On the other hand, the first upper lock portion (door lock switch) 118 and the second upper lock portion 128 are arranged such that the position of the projection 118a of the first upper lock portion 118 is different from the position of the projection 128a of the second upper lock portion 128, whereby the shape of the first upper lock portion 118 and the shape of the second upper lock portion 128 can be made completely the same.

Therefore, in the plan view shown in fig. 2, the first door lock device 110 and the second door lock device 120 completely overlap each other within the range RA (see fig. 3), except for the first upper lock portion 118 and the second upper lock portion 128. That is, in fig. 2, the first door-lock device 110 is hidden under the second door-lock device 120. In fig. 2, first upper lock portion 118 and second upper lock portion 128 only show projection 118a and projection 128a.

Fig. 2 and 3 show a state in which the engaging device 102 is engaged with the door lock device 100 in a state in which the elevator car 4 is stopped. In this engaged state, the first movable roller 113 and the first fixed roller 114, and the second movable roller 123 and the second fixed roller 124 are positioned in the engagement range Δ E inside the both

side walls

102a, 102b of the engaging device 102. The engagement device 102 is disposed on the elevator car 4 side, and when the elevator car 4 moves to another floor, the engagement of the door lock device 100 with the engagement device 102 is released.

The engaging device (engaging member) 102 engages with the first movable roller 113 of the first door lock device 110 and the second movable roller 123 of the second door lock device 120 at the time of automatic door opening, and constitutes an automatic unlocking device that unlocks the first door lock device 110 and the second door lock device 120 in accordance with movement of the car side door 41 in the door opening direction.

Next, the unlocking operation of the door lock device 100 in the normal operation (automatic opening and closing operation) will be described with reference to fig. 4 to 6. The unlocking operation of fig. 4 to 6 automatically opens and closes the

hall side doors

10A and 10B in accordance with the opening and closing operation of the car side door 41. That is, the door lock device 100 is automatically unlocked in conjunction with the opening and closing operation of the car side door 41.

In fig. 4, the first hook unlocking member 105, the unlocking key 106 and the second hook unlocking member 107, which are not shown in fig. 3, are shown. The first hook unlocking member 105, the unlocking key 106, and the second hook unlocking member 107 are members that are not involved in the unlocking operation of the door lock device 100 during the normal operation, and will be described later.

The engagement device 102 provided on the elevator car 4 side engages with the door lock device 100 when the elevator car 4 stops. That is, the first movable roller 113 and the first fixed roller 114 of the first door lock device 110 and the second movable roller 123 and the second fixed roller 124 of the second door lock device 120 are positioned in the engagement range Δ E, and the state shown in fig. 4 is achieved.

When the elevator car 4 stops, the concave portion 111a of the first hook 111 is engaged with the protrusion 118a of the upper lock portion 118, the concave portion 121a of the second hook 121 is engaged with the protrusion 128a of the upper lock portion 128, and the

hall side doors

10A and 10B are locked.

When the car side door 41 starts the opening operation after the stop of the elevator car 4, the engagement device 102 provided on the car side door 41 side moves together with the car side door 41, and moves from the position indicated by the engagement range Δ E to the position indicated by the engagement range Δ E'. With this movement, the side wall 102a of the engaging device 102 abuts against the first movable roller 113 and the second movable roller 123, and both

rollers

113 and 123 are pressed in the leftward direction in the drawing.

At this time, the first movable roller 113 rotates about the first hook shaft 111c, and operates to lift one end portion of the first hook 111 on the side of the claw portion (first hook claw portion) 111b. The first movable roller 113 stops the rotation operation by coming into contact with the first fixed roller 114. The first hook 111 is rotated by the rotational operation of the first movable roller 113, and the engagement of the concave portion 111a of the first hook 111 with the protrusion 118a of the door lock switch 118 is released, so that the first door lock device 110 is unlocked.

On the other hand, the second movable roller 123 rotates about the second hook shaft 121c, and operates to lift one end portion of the second hook 121 on the hook portion (second hook portion) 121b side. The second movable roller 123 stops the rotational operation by coming into contact with the second fixed roller 124. The second hook 121 is rotated by the rotation operation of the second movable roller 123, and the engagement between the concave portion 121a of the second hook 121 and the protrusion 128a of the upper lock portion 128 is released, so that the second door lock device 120 is unlocked.

That is, the elevator apparatus 1 of the present embodiment includes the engaging device 102 provided on one side of the car side door 41 on the elevator car 4 side, and when the lobby side door 10 and the car side door 41 are automatically opened, the engaging device 102 abuts both the first movable roller 113 and the second movable roller 123 to press the first movable roller 113 and the second movable roller 123 with the movement of the car side door 41, thereby rotating both the first hook 111 and the second hook 121 and unlocking the first door lock device 110 and the second door lock device 120.

By unlocking the first door lock device 110, the

lobby side doors

10A and 10B connected to the car side door 41 by the engaging device 102 and the door lock device 100 perform a door opening operation in conjunction with the door opening operation of the car side door 41, and the state shifts to the state shown in fig. 6.

In the state shown in fig. 5, the claw portion 121B of the second hook 121 is disengaged from the protrusion 128a of the locking portion 128, and the

lobby side doors

10A and 10B can further perform the door opening operation from the state shown in fig. 6.

Next, with reference to fig. 7 to 9, the unlocking operation of the door lock device 100 in the manual opening and closing operation will be described. Fig. 7 to 9 show operations of unlocking the door lock device 100 of the hall side door 10 in a state where the elevator car 4 is not stopped during maintenance and inspection.

In manual opening and closing, the door lock device 100 is unlocked using the first hook lock release member 105, the lock release key 106, and the second hook lock release member 107. One end of the first hook unlocking member 105 is connected to the first hook 111. The unlock key 106 is configured to rotate the engagement portion 106a by a key inserted from a key guide hole not shown. The second hook unlocking member 107 is connected to the other end opposite to the one end on which the claw portion 121b is provided, with the shaft 121c of the second hook 121 interposed therebetween. In the present embodiment, the second hook unlocking member 107 is constituted by a sling, and will be hereinafter described as an unlocking sling.

In fig. 7, the state of the door lock device 100 is the same as that of fig. 4, but since the elevator car 4 is not at a stop, the engagement device 102 is not engaged with the door lock device 100.

In the first unlock state, the engagement of the first hook 111 with the first upper lock portion 118 is released, and the engagement of the second hook 121 with the second upper lock portion 128 is maintained.

In manual opening and closing, the engagement portion 106a of the unlocking key 106 is rotated by a key inserted through a key guide hole not shown, and the lower end portion of the first hook unlocking member 105 is pressed in the leftward direction in the drawing. The lower end of the first hook unlocking member 105 is the other end opposite to the side of the one end (upper end) connected to the first hook 111. By this operation, the lower end portion of the first hook lock release member 105 moves in the left direction in the drawing with respect to the upper end portion, and the first hook 111 rotates about the first hook shaft 111 c. As a result, the engagement of the first hook 111 with the first upper lock portion 118 is released.

In this way, the first hook unlocking member 105 and the unlocking key 106 constitute a first unlocking device that releases the engagement of the first hook 111 with the first upper lock portion 118 at the time of manual opening and closing to unlock the first door lock device 110.

When the first unlocked state in fig. 8 is achieved, the second hook 121 can move to the right in fig. 3 by the length La with the second concave portion 121a engaged with the second locking portion protrusion 128a. That is, the

hall side doors

10A and 10B are in a state where the first door lock device 110 is unlocked, and the

hall side doors

10A and 10B can be opened with a first door opening width La smaller than the door opening width in the fully open state. When the

hall side doors

10A and 10B are opened to the first door opening width La, the door lock device 100 is in a state shown by a solid line in fig. 9.

The posture of the second hook 121 shown by the solid line is the posture when the first unlocked state of fig. 8 is maintained. When the

hall side doors

10A and 10B are opened from the state shown in fig. 8, the claw portions of the second hooks 121 abut against the side surfaces 128B of the second locking portion protrusions 128a, and the door opening widths of the

hall side doors

10A and 10B are restricted to the first door opening width La. The state at this time is the state shown by the solid line in fig. 9 (first unlocked state).

In the state shown by the solid line in fig. 9, when a hand is inserted from the gap between the

hall side doors

10A and 10B opened to the first opening width La and pulls the unlocking hoist 107, the second hook 121 pivots about the second hook shaft 121c as shown by the two-dot chain line 121', and the engagement of the second concave portion 121a with the second locked portion protrusion 128a is released. The state is a second unlocked state. In this case, the second movable roller 123 provided in the second hook 121 also rotates about the second hook shaft 121c as indicated by the two-dot chain line 123'.

In the second unlocked state in the manual opening and closing operation, the first hook 111 and the second hook 121 are in the same state as the state shown in fig. 6 in the automatic opening and closing operation, and the

hall side doors

10A and 10B can be opened to the fully opened state.

In this way, the unlocking wire 107 constitutes a second unlocking device that releases the engagement of the second hook 121 with the second upper lock portion 128 during manual opening and closing, and unlocks the second door lock device 120.

In the present embodiment, the first unlocking device that releases the engagement of the first hook 111 with the first upper lock portion 118 to unlock the first door lock device 110 during manual opening and closing and the second unlocking device that releases the engagement of the second hook 121 with the second upper lock portion 128 to unlock the second door lock device 120 during manual opening and closing are configured as independent unlocking devices. Further, during automatic opening and closing, both the engagement of the first hook 111 with the first upper lock portion 118 and the engagement of the second hook 121 with the second upper lock portion 128 are simultaneously released by the engagement device 102. That is, in the automatic opening and closing operation, both the first door lock device 110 and the second door lock device 120 are unlocked by the same engagement device 102. This makes it possible to construct the door lock device 100 compactly, and to reliably perform the door opening operation including the door opening width limitation at the time of automatic opening and closing and the door opening operation including the door opening width limitation at the time of manual opening and closing.

According to the present embodiment, the door lock device 100 provided in the elevator apparatus 1 can be made compact. As a result, in the newly installed elevator apparatus, the degree of freedom in design of the periphery where the door lock device 100 is disposed is increased. In addition, in the conventional elevator apparatus, the arrangement space of the second door lock device 120 can be easily secured, and the second door lock device 120 can be easily installed by post-installation.

Further, since the first door lock device 110 and the second door lock device 120 have the same shape and the same structure except for a part thereof, when the second door lock device 120 is added to the conventional elevator apparatus, the second door lock device 120 can be added with reference to the first door lock device 110. Therefore, the additional installation of the second door lock device 120 is facilitated, and the reliability of the operation of the second door lock device 120 can be easily ensured.

Further, in the automatic opening and closing operation, the door opening power is obtained from the car side door 41 side via the engaging device 102, but the strength of the receiving portion for the door opening power can be increased since the door opening power is received by the first door lock device 110 and the second door lock device 120.

In the present embodiment, the members constituting the first and second

door lock devices

110 and 120 are different only in the shape of the concave portion 111a of the first hook 111 and the concave portion 121a of the second hook 121, and other members can be used in common. In addition, in the first hook 111 and the second hook 121, the shape of the

concave portions

111a and 121a may be changed, and thus, it is not necessary to change the specification of the component largely. In the manufacturing method of additionally processing the

concave parts

111a, 121a, the raw materials of the first hook 111 and the second hook 121 can be manufactured together.

The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above embodiments have been described in detail to explain the present invention in an easily understandable manner, and are not necessarily limited to the embodiments having all the configurations. In addition, a part of the structure of the embodiment can be replaced with another structure. In addition, a part of the configuration of the embodiment can be added, deleted, or replaced with another configuration.

Claims

1. An elevator device comprising an elevator car that ascends and descends in an ascending/descending path, a hall side door provided on a hall side, and a door lock device that locks the hall side door,

the first concave part of the first hook has a clamping length which is clamped with the first hook bearing part and maintains the state that the side door of the waiting hall is closed,

2. Elevator arrangement according to claim 1,

the first hook and the second hook are formed such that a second concave portion length that determines an engagement length of the second concave portion with the second hook receiving portion is longer than a first concave portion length that determines an engagement length of the first concave portion with the first hook receiving portion.

3. Elevator arrangement according to claim 2,

the first door lock device and the second door lock device are arranged side by side in the vertical direction.

4. Elevator arrangement according to claim 3,

the first hook receiving part is provided with a protruding part which is clamped with the first concave part of the first hook,

the first hook has a claw part which is arranged at one end part of the first concave part and is clamped with the protruding part of the first hook bearing part to prevent the side door of the waiting hall from opening,

the second hook bearing part is provided with a protruding part which is clamped with the second concave part of the second hook,

the second hook has a hook portion which is provided at one end portion of the second concave portion and engages with the protruding portion of the second hook receiving portion to limit the door opening width of the hall side door.

5. Elevator arrangement according to claim 4,

the projecting portion of the first hook receiving portion and the projecting portion of the second hook receiving portion are disposed at different positions in the door opening direction and the vertical direction of the hall side door,

the claw portion of the first hook and the claw portion of the second hook are arranged at the same position in the door opening direction of the side door of the lobby and at different positions in the vertical direction,

the protruding portion of the second hook receiving portion is disposed on the other end portion side of the second concave portion opposite to the one end portion on which the claw portion is provided, with respect to the protruding portion of the first hook receiving portion.

6. Elevator arrangement according to claim 5,

the first hook and the second hook are formed in the same shape except for the first concave portion and the second concave portion.

7. Elevator arrangement according to claim 6,

the first door lock device includes: a first movable roller provided so as to be rotatable together with the first hook; and a first fixing roller whose position is fixed with respect to the side door of the lobby,

the second door lock device has: a second movable roller provided so as to be rotatable together with the second hook; and a second fixed roller whose position is fixed relative to the side door of the waiting hall,

the second hook, the second hook shaft, the second movable roller, and the second fixed roller of the second door lock device and the first hook, the first hook shaft, the first movable roller, and the first fixed roller of the first door lock device are arranged so as to overlap with each other when the position of one of the second door lock device and the first door lock device is shifted in the vertical direction.

8. Elevator arrangement according to claim 7,

the elevator device is provided with an engaging device arranged on one side of a car side door on the elevator car side,

the clamping device is in the hall side door reaches when the automation of car side door is opened the door, with first movable roll reaches these two sides butt of second movable roll, along with the removal of car side door is pressed first movable roll reaches the second movable roll, thereby makes first pothook reaches these two sides of second pothook rotate, it is right first door locking device reaches second door locking device unlocks.