KR101960931B1 - Device for clutch doors of a freight elevator - Google Patents

Device for clutch doors of a freight elevator Download PDF

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Publication number
KR101960931B1
KR101960931B1 KR1020170143587A KR20170143587A KR101960931B1 KR 101960931 B1 KR101960931 B1 KR 101960931B1 KR 1020170143587 A KR1020170143587 A KR 1020170143587A KR 20170143587 A KR20170143587 A KR 20170143587A KR 101960931 B1 KR101960931 B1 KR 101960931B1
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KR
South Korea
Prior art keywords
door
interlocking
guide block
pulley
horizontal
Prior art date
Application number
KR1020170143587A
Other languages
Korean (ko)
Inventor
김동석
전종백
Original Assignee
누리엔지 엔지니어링(주)
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Publication date
Application filed by 누리엔지 엔지니어링(주) filed Critical 누리엔지 엔지니어링(주)
Priority to KR1020170143587A priority Critical patent/KR101960931B1/en
Application granted granted Critical
Publication of KR101960931B1 publication Critical patent/KR101960931B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/12Arrangements for effecting simultaneous opening or closing of cage and landing doors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/06Door or gate operation of sliding doors

Abstract

The present invention proposes an interlocking device for interlocking a hall door provided on a car door of an elevator for freight. The interlocking device of the present invention comprises a direction switching pulley (3) for switching a wire rope in a vertical state through a idle roller (2) in a horizontal direction, a wire rope switched in a horizontal direction by the direction switching pulley (3) And a guide block (4B) supported by the guide rail (42) and moving in the horizontal direction, the hall door and the card door being respectively opened and closed by the horizontal movement of the guide block; A first interlocking means provided on the car door and a second interlocking means provided on the hall door so that the guiding block of the hall door and the guide block of the car door can be engaged with each other when they reach the same horizontal position and can be interlocked in the horizontal direction Interlocking means; A drive motor installed in the card door; And power transmitting means for transmitting the rotational force of the driving motor to the first interlocking means of the car door. And a shock absorber connected to the other end of the chain 31 of the power transmitting means and for balancing the opening and closing of the car door and the door.

Description

Technical Field [0001] The present invention relates to a door interlock device for a freight elevator,

The present invention relates to a cargo elevator, and more particularly, to a cargo elevator having a simple structure and sufficient operation reliability and capable of operating the car door and the hall door of the cargo elevator by interlocking with each other, ≪ / RTI >

The door for accessing the cargo elevator can be divided into a car door installed in the elevator car and a hall door installed in the car-mounted building of the elevator. Each of the car doors and the hall doors is generally composed of a lower door that is opened and closed in the vertical direction and an upper door that is installed in the upper portion.

Also, each lower door is called a high-speed door because it moves at a relatively high speed, and the upper door is also called a low-speed door. The car doors and the hall doors each composed of the high-speed and the low-speed doors are actually installed separately from each other. To drive the car doors and the hall doors, a separate driving device is required.

However, it is a matter of course that there are problems such as cost increase due to expensive parts such as a motor and complexity of the assembling process, if separate driving devices are provided inside and outside of the elevator. For example, Korean Patent Application Laid-Open No. 10-2009-0084587 and Korean Patent Application No. 10-2017-0003070 may have the above-described problems.

It is an object of the present invention to provide a door interlocking device for a cargo elevator with high reliability which can mechanically and simply interlock the car door and the hall door.

It is another object of the present invention to provide a door interlocking device for an elevator for cargo which can maintain durability sufficiently for a long period of use.

It is another object of the present invention to provide a door interlocking device which simplifies the entire structure and control and facilitates construction by substituting constituent parts.

In order to achieve the above object, the present invention provides a door interlocking device for a cargo elevator including a door door and a door, each of which is composed of an upper door and a lower door and is opened while the upper door is lifted in accordance with a rise of the lower door. And a wire rope in a vertical state is connected to a directional pulley for switching the horizontal direction through the idle roller, a wire rope or chain switched in the horizontal direction by the directional switching pulley, and supported by the guide rail, A hall door and a card door which are respectively opened and closed by a horizontal movement of the guide block, respectively; A first interlocking means provided on the card door and a second interlocking means provided on the door so that the guide block of the hall door and the guide block of the door can be coupled to each other and interlocked with each other in the horizontal direction Interlocking means; A drive motor installed in the card door; And power transmitting means for transmitting the rotational force of the driving motor to the first interlocking means of the car door.

According to the embodiment of the present invention, the first interlocking means is a door cam having a vertical retracting groove, and the second interlocking means is a door cam which, when the car door and the hall door are located at the same height, Roller. Therefore, when the car door and the hall door are positioned at the same height by raising or lowering the elevator, in a state in which the catch roller is inserted into the upper and lower direction receiving grooves of the door cam, .

According to the embodiment of the power transmitting means, the drive pulley is rotated by the drive motor, the drive sprocket is installed coaxially with the drive pulley, and the chain connects the drive sprocket and the guide block.

According to another embodiment of the present invention, the shock absorber further includes a shock absorber connected to the other end of the chain for balancing the opening and closing of the door and the door.

According to the present invention having the above-described configuration, since the hall door and the car door can basically be opened and closed in the cargo elevator, the opening and closing device including the driving motor that opens and closes the upper and lower doors It is possible to expect the merit of the structure to be installed only once, the advantage of assembly and construction, and the safety of the machine can be secured by simplifying the control by controlling only one motor.

According to the present invention, since the car of the elevator moves in the vertical direction, the structure of the interlocking mechanism that receives the force in the up-and-down direction is complicated and the operation reliability is hard to be increased. Therefore, in the present invention, the interlocking device capable of moving in the left-right direction interlocks the car door with the hall door as a basic idea of ascending or descending of the elevator. Therefore, the card door always stops at the predetermined position, so that by attaching one side of the interlocking mechanism to the hall door at the corresponding position, the interlocking operation can always be performed at the correct position, thereby assuring a substantially simple and accurate operation It is.

Further, according to the embodiment of the present invention, it can be seen that the shock absorber is used by using gas instead of the conventional heavy weight. According to this embodiment, not only the structure is simple, but also the space is sufficiently advantageous, and on the basis of this point, a sufficient advantage can be expected in actual construction.

1 is a front view of a hall door of the present invention.
2 is a sectional view taken along line BB of Fig. 1;
3 is a front view of the car door of the present invention.
4 is a sectional view taken along the line AA in Fig.
FIG. 5 is a plan view of the coupled state of the interlocking device of the present invention. FIG.
6 is a front view of the door with the door being opened by the interlocking device of the present invention.

Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings.

FIGS. 1 and 2 are a front view and a plan view of a hall door provided with a linking device of the present invention, and FIGS. 3 and 4 are a front view and a plan view of a car door. As shown in the figure, the door (HD) includes a lower hole door (HDa) installed at the lower side and rising and falling at a relatively high speed, and an upper hole door (HDb) installed at the upper portion of the lower hole door . The card door CD is composed of a lower card door CDa installed at the lower side and ascending and descending at a relatively high speed and an upper card door CDb installed above the lower card door CDa . And

Since the connection relationship and the ascending / descending structure of the lower car door CDa and the upper car door CDb are well known in the art, the connection between the lower car door CDa and the upper car door CDb, The description of the interlocking structure for descending will be omitted. The detailed configuration and operation of the upper and lower door doors HDb and HDa are also omitted for the same reason. For example, as shown in Figs. 1 and 3, the wire ropes 12 and 12A, the chains 9 and 9A, and the chain rollers 19 and 19, respectively, of the door door HD and the card door CD, The interlocking structure of the door (CD) and the door (HD) by means of the sliding door (19A) is well known, and a detailed description thereof will be omitted.

According to the present invention, one car (CD) and a door (HD) are simultaneously driven by using one driving device (motor). An interlocking device is provided on a card door CD and a holder door HD and the door door HD is interlocked with the door CD by operation of the interlocking device. In consideration of the fact that the door (CD) and the door (HD) are opened and closed in the vertical direction, an interlocking member capable of interlocking with each other in the horizontal direction is provided, So that the door (CD) and the door (HD) can be opened and closed, respectively, by movement. The interlocking device of the present invention is for substantially interlocking the hall door and the car door, and is for substantially interlocking the holder and the car door, and will be referred to as a car door and a holder for convenience of explanation.

As shown in FIG. 1, a guide rail 42 is provided on the door header 101 above the door HD so that the guide block 4B can be guided in a horizontal direction (left-right direction). The guide rail 42 may have any structure as long as it is capable of guiding while supporting the left and right movement of the guide block 4B. As shown in the figure, the guide block 4B may have an upper surface and a lower surface guided therebetween desirable.

A large number (four) of guide rollers 41 are provided on the upper and lower surfaces of the guide block 4B to smoothly move left and right. A return pulley 4 is installed in the guide block 4B. Wire ropes 11 and 12 connected to the pair of idle pulleys 2 and the guide block 4B are wound around the direction changing pulley 3 installed at one side.

A sprocket 30 is provided on the opposite side of the direction changing pulley 3. A chain 31 connecting the shock absorber 18 and the guide block 4B is hooked to the sprocket 30. [ The wire belts 11 and 12 wound on the directional switching pulley 3 of the hall door HD are connected to the rope stopper 14 provided on the guide block 4B after being wound on the return pulley 4 by half a turn . Therefore, the left and right movement of the guide block 4B causes the door HD to be opened or closed, and the shock absorber 18 is also elongated or contracted. Further, the rope stopper 14 can sufficiently secure the vertical movement of the door even with a small stroke in the lateral direction. 1, when the return pulley 4 is pulled in the weight or the shock absorber direction due to the rotation of the driving motor, the return pulley 4 is in the open state, and when it is away from the weight or the shock absorber direction, the return pulley 4 is in the closed state.

Here, the shock absorber 18 is constructed so as to be able to expand and contract within a certain range by using an internal gas, and the shock absorber 18 is known per se, and a description of its internal structure is omitted. The shock absorber 18 in the present invention can be said to be provided in place of the conventional weight used for opening and closing the door substantially. That is, the shock absorber 18 performs the same function as the conventional weight for balancing the weight when the door and the door are opened and closed. When the shock absorber 18 is used as in the present invention, It is expected that it will be structurally simple and at the same time to have a good assembling property and ultimately contribute to cost reduction.

According to the above description, the diverting pulley 3 can be said to be constituted so as to be able to substantially convert the vertical wire rope 11 by the idle pulley 2 into a horizontal state, and the return pulley 4 And the guide block 4B is horizontally moved along the guide rail 42 to open and close the door.

The shock absorber 18 shown in Fig. 1 is installed in the vertical direction and connected to the chain 31 in the vertical direction. Unlike this embodiment, when the stroke distance is short, it is also possible to provide the shock absorber 18A in the same horizontal direction as the guide rail 42, as shown in Fig. As shown in Fig. 2, according to the present invention, a catch roller 23 is provided coaxially with the return pulley 4. The catch roller 23 may be regarded as one component constituting the interlocking device of the present invention.

Up and down movement of the hall door HD is supported by the guide rails 6 provided on both sides. However, in the case of the conventional construction and operation, the detailed description thereof is omitted.

Next, a car door (CD) will be described with reference to FIG. 3 and FIG. The configuration of the door (CD) shown in Fig. 3 can be said to be substantially the same as the configuration of the hall door (HD). The difference is that the door (CD) includes a drive motor to be. As shown in the figure, a guide rail 42 is provided on the door header 301 on the upper portion of the door CD. A guide block 4B is provided on the guide rail 42 so as to be guided in a horizontal direction (left-right direction).

A plurality of (four) guide rollers 41 are provided on the upper and lower surfaces of the guide block 4B and a return pulley 4 is provided on the guide block 4B. A drive motor 7 is provided at an upper portion of the card door CD and the output of the drive motor 7 is connected to the drive pulley 21 through a drive belt 22. [ A drive sprocket (not shown) is provided coaxially with the drive pulley 21 and the chain 31 engaged with the drive sprocket is connected to the shock absorber 18 and the guide block 4B, respectively.

The directional switching pulley 3 provided on the opposite side of the drive motor 7 is connected to the guide block 4B while switching the pair of wire ropes 12A from a vertical state to a horizontal state through a pair of idle pulleys 2. [ ). The wire rope 12A is wound around the return pulley 4 of the guide block 4B by a half turn and then connected to the wire stopper 14 provided on the return pulley 4. [ The use of the wire stopper 14 as described above is intended to increase the opening of the elevator by minimizing the movement of the clutch device and maximizing the stroke of the door by setting the stroke of the clutch device to 2: 1.

Therefore, when the sprocket coaxially installed on the drive pulley 21 is operated by driving the drive motor 7, the guide block 4B or the return pulley 4 moves in the left and right direction. When the pulley 4 is positioned in the direction of the weight or the shock absorber, the door is opened.

The directional pulley 3 can be said to be configured to substantially convert the wire rope 11 in a vertical state by the idle pulley 2 into a horizontal state, The door 4B is moved in the horizontal direction along the guide rail 42 to open and close the door. The left and right movement of the guide block 4B is also interlocked with the shock absorber 18 through the chain 31. [

The return pulley 4 of the guide block 4B which is supported by the guide rail 42 at the upper portion of the card door 4 and moves left and right moves along with the catch roller 23 of the hall door HD A door cam 24 is provided. In the present invention, the door cam 24 installed on the upper portion of the door (CD) moves the catch roller 23 of the hall door HD toward the center portion In the vertical direction). In this state, when the door cam 24 is moved to the left and right, the catch roller 23 of the hall door is also moved in the left and right direction in cooperation with each other.

4, the door cam 24 includes a first member 24b and a second member 24c having a predetermined length in the vertical direction so that the catch roller 23 can be housed in the center portion, So that the catch rollers 23 are formed in the vertical holding grooves 24a in which the catch rollers 23 are housed. The catch roller 23 moves in the vertical direction like the card CD in a state of being stopped at a predetermined position of the guide rail 42 of the door CD.

The door cam 24 of the door CD is designed to stop at the same height as the catch roller 23 of the door HD when the door CD is stopped on the predetermined floor. That is, when the door cam 24 is stopped at a predetermined height, the catch roller 23 is located at the center of the vertical receiving groove 24a of the door cam 24. [

The catch roller 23 is more smoothly inserted into the upper and lower storage grooves 24a in the upper and lower ends of the first member 24b and the second member 24c of the door cam 24, It is also preferable to form a trumpet-shaped guide portion that expands upward or downward. It is also preferable that the door cam 24 of the present invention can have a receiving groove 24a having a predetermined length with respect to the vertical direction.

5 shows a state in which the door cam 24 of the upwardly and downwardly-moving door CD is aligned at the same height as the catch roller 23 of the door HD. 5 and 6, when the door cam 24 is positioned at the center, the door door HD is substantially opened and the door door HD is also engaged with the door CD It is open.

3, the state in which the door cam 24 and the guide block 4B are located on the left side is a closed state in which the door is moved downward. When the drive motor 7 is driven in such a state that the door is closed, the rotational force is transmitted to the driver pulley 21 to rotate the driver pulley 21 clockwise. As the pulley 21 rotates, the driving sprocket coaxially coupled and cooperating is also rotated in the same direction to drive the chain 31 so that the guide block 4B is moved to the center of the guide rail 42 And the shock absorber 18 is contracted.

Therefore, the shock absorber 18 is contracted and the guide block 4B is guided by the guide rail 42 and moved to the center. When the guide block 4B is moved to the center, the doors CD and HD are opened as shown in FIG. In this way, when the door is opened, operation in the closed state of FIG. 3 is performed by the opposite rotation of the drive motor 7 and is caused by the movement in the opposite direction as described above.

As described above, according to the present invention, the interlocking device that can be interlocked with each other in the horizontal direction at the same vertical height is used, and the door that is opened and closed in the vertical direction can be driven by driving the wire rope in the vertical direction, It can be seen that the implantation is performed.

While the present invention has been described with reference to exemplary embodiments, 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 spirit and scope of the appended claims. It should be obvious that it should be.

3 ..... reorientation pulley
4 ..... return pulley
4B ..... guide block
9 ..... chain
11, 12 ..... wire rope
18 ..... Shock absorber
23 .... catch roller
24 ..... door cam
24a ..... Upper and lower direction storing grooves
24b ..... first member
24c ..... second member
30 ..... Sprocket
41 ..... Guide roller
42 ..... guide rail
101, 301 ..... Door Header

Claims (4)

  1. A door interlocking device for a cargo elevator having a door door and a car door, each of which is composed of an upper door and a lower door and is opened while the upper door is lifted in accordance with a rise of the lower door;
    A drive motor installed in the card door;
    A drive pulley (21) rotated by the drive motor, and a drive sprocket interposed between the drive pulley (21) and a drive sprocket interlocked and provided with a chain for power transmission;
    An idle roller 2 for switching a wire rope in a vertical state for opening and closing the hall door and a door to a horizontal state and a wire rope 2 for winding the wire rope in the idle roller 2 to support the horizontal wire rope, A diverting pulley (3) installed in the hall door and the card door, respectively;
    The wire ropes which are switched by the direction changing pulley 3 are connected to each other. The wire ropes are supported by a door rail and a guide rail 42 provided on the upper portion of the door, A guide block 4B installed on the door and the door respectively; And
    A door cam provided on the door so as to be coupled to the guide block of the door when the guide block of the hall door and the guide block of the door come to the same position and to be interlocked with each other in the horizontal direction; And a catch roller which is housed in the groove, and is constituted by an interlocking device for interlocking the holder and the door;
    The guide block of the door is horizontally connected to one end of the chain of the power transmission device and the wire rope which has been converted into a horizontal state by the direction switching pulley 3 is wound halfway around the return pulley 4 of the guide block And is connected to the guide block by being fixed to the rope stopper (14).
  2. The method according to claim 1,
    And a shock absorber connected to the other end of the chain for balancing the opening and closing of the car door and the door.

  3. delete
  4. delete
KR1020170143587A 2017-10-31 2017-10-31 Device for clutch doors of a freight elevator KR101960931B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170143587A KR101960931B1 (en) 2017-10-31 2017-10-31 Device for clutch doors of a freight elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170143587A KR101960931B1 (en) 2017-10-31 2017-10-31 Device for clutch doors of a freight elevator

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KR101960931B1 true KR101960931B1 (en) 2019-03-21

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KR1020170143587A KR101960931B1 (en) 2017-10-31 2017-10-31 Device for clutch doors of a freight elevator

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0174657B1 (en) * 1996-01-27 1999-04-15 이종수 Get on and off car door of an elevator
US20050045430A1 (en) * 2003-08-12 2005-03-03 Nijs Wernas Safety closing system for shaft door panel of an elevator installation, and elevator installation with shaft door panel, which comprises such a safety closing system
KR101039633B1 (en) * 2011-03-28 2011-06-08 주식회사 세명엘리베이터 Device for opening and shutting a door of horizontal move in elevator
KR101261586B1 (en) * 2012-04-23 2013-05-14 남기열 Up and down type automatic opening and closing elevator door device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0174657B1 (en) * 1996-01-27 1999-04-15 이종수 Get on and off car door of an elevator
US20050045430A1 (en) * 2003-08-12 2005-03-03 Nijs Wernas Safety closing system for shaft door panel of an elevator installation, and elevator installation with shaft door panel, which comprises such a safety closing system
KR101039633B1 (en) * 2011-03-28 2011-06-08 주식회사 세명엘리베이터 Device for opening and shutting a door of horizontal move in elevator
KR101261586B1 (en) * 2012-04-23 2013-05-14 남기열 Up and down type automatic opening and closing elevator door device

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