JP2010052901A - Device for preventing elevating and lowering with door opened for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for preventing a car from elevating and lowering while its door is opened without requiring a driving part. <P>SOLUTION: A system for this device has the car door 2 provided in the car 1 of the elevator, a landing door provided in a landing, and an engaging device 3 opening and closing the car door 2 and the landing door in the interlocking relationship and composed of an engaging piece 4 and a first engaging roller 5 and a second engaging roller 5a moving in the horizontal direction simultaneously with the travel of the engaging piece 4 in the horizontal direction. A pair of first and second locking members 6, 7 allowing the engaging piece 4 or the first and second engaging rollers 5, 5a to move in the horizontal direction and locking relative travel of the engaging piece 4 or the first and second engaging rollers 5, 5a in the vertical direction when the car door 2 is opened are provided in a car 1 section close to the engaging device 3. Each of the first and second locking members 6, 7 is provided with a first cut-out part 6b and a second cut-out part 7b to allow the engaging piece 4 or the first and second engaging rollers 5, 5a to pass through them when the car door 2 is fully closed or almost fully closed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an opening / closing prevention device for an elevator that prevents a car from going up and down when the door is opened.

  As a conventional elevator door opening / lowering prevention device that prevents the car from going up and down when the elevator door is opened, the car side fixture is protruded on the hoistway wall side in conjunction with the opening and closing of the car door to prevent the car from moving up and down. The thing is proposed (refer patent document 1 and patent document 2).

That is, the prior arts shown in these Patent Documents 1 and 2 are driven by a driving unit provided in the car, and are moved to and away from the car in the direction of the hoistway wall, and are arranged on the hoistway. It has the structure provided with the hoistway side fixing tool in which the front-end | tip of the cage | basket | car side fixing tool which advanced to the wall direction of the road loosely fits. In these prior arts, the change in the car stop position due to a sudden change in the load of the car, etc., that is, the raising and lowering of the car is prevented by the car-side fixing tool whose tip is loosely fitted to the hoistway-side fixing tool. It has become.
Japanese Patent Laid-Open No. 10-59662 JP 2008-44782 A

  However, both of the prior arts disclosed in Patent Documents 1 and 2 require a drive unit for the car-side fixture, and such a drive unit has a problem of poor reliability because there is a risk of failure over time. In addition, there is a problem that the device is large for the drive unit and the manufacturing cost is high.

  The present invention has been made to solve the above inconveniences, and an object of the present invention is to provide an opening / closing prevention device for an elevator that can prevent a car from moving up and down at the time of opening without requiring a drive unit. is there.

  In order to achieve this object, the present invention is provided in an elevator, which links a car door provided in a car, a landing door provided in a landing, and an opening / closing operation of the car door and the landing door. An elevator opening / lowering prevention device for an elevator having an engagement element and an engagement device comprising an engagement roller that moves in the horizontal direction along with the horizontal movement of the engagement element. Allowing the portion to allow relative movement of the engaging element or the engaging roller in the horizontal direction, and locking the engaging element or the vertical movement of the engaging roller when the car door is opened. Each of the locking members is a notch that allows the engagement roller or the engagement element to pass through when the cage door is in a fully closed state or a state close to a fully closed state. It was characterized by having That.

  In the present invention configured as described above, when the car is landed at a normal position, the engaging roller or the engaging element is housed in the notch portions of the pair of locking members provided in the car portion. By moving the engaging element or the engaging roller in the horizontal direction from this state, the car door shifts from a fully closed state or a state close to a fully closed state to a fully open state. When the car door is fully opened, the relative movement of the engaging element or the engaging roller in the vertical direction is locked or prevented by the pair of locking members as the car moves up and down. Therefore, it is possible to prevent the car from moving up and down when the door is opened by the pair of locking members provided in the car portion without requiring a special driving unit.

  Moreover, the present invention is characterized in that, in the above invention, the cage door includes the engaging element, and the landing door includes the engaging roller.

  Further, the present invention is the U-shaped plate according to the present invention, wherein the engagement element has an L-shaped hole through which the locking member is inserted and has both side plates that can be disposed so as to sandwich the engagement roller. Each of the locking members is extended in the horizontal direction, and has an overhanging portion that prevents the engagement roller from moving in the vertical direction when the car door is opened. The notch is formed to allow the engagement roller to pass when the car door is fully closed or close to being fully closed.

  Moreover, the present invention is characterized in that, in the above invention, the cage door includes the engagement roller, and the landing door includes the engagement element.

  Further, the present invention is the above invention, wherein the engagement roller is composed of a pair of rollers arranged in parallel in the horizontal direction, and the engagement element extends in the vertical direction and can be inserted between the pair of rollers. Each of the locking members extends in the horizontal direction and has the overhanging portion that prevents the engagement element from moving in the vertical direction when the car door is opened. The notch is formed to allow the engagement element to pass through when the car door is fully closed or nearly closed.

  Further, the present invention is provided in an elevator, and interlocks opening and closing operations of the car door provided in the car, the landing door provided in a landing, and the car door and the landing door. A door opening / lowering preventing device for an elevator having the engagement element and the engagement device comprising the engagement roller that moves in a horizontal direction together with the horizontal movement of the engagement element. A pair of locking members that allow a horizontal side movement of the engagement element to a landing side portion to be engaged, and to lock the vertical movement of the engagement element or the engagement roller when the car door is opened. Each of the locking members includes the notch portion that allows the engagement roller or the engagement element to pass through when the car door is in a fully closed state or a state close to a fully closed state. It is a feature.

  According to the present invention configured as described above, when the car is landed at a regular position, the notch portions of the pair of locking members are provided in a landing side portion located near the engagement device. The engaging roller or the engaging element is accommodated. By moving the engagement element or the engagement roller from this state in the horizontal direction, the car door shifts from a fully closed state or a state close to a fully closed state to a fully opened state. When the car door is fully opened, the vertical movement of the engaging element or the engaging roller accompanying the raising and lowering of the car is locked, that is, blocked by the pair of locking members. Therefore, it is possible to prevent the car from moving up and down when the door is opened by the pair of locking members provided at the landing side portion without requiring a special driving unit.

  The present invention allows a cage portion near the engagement device or a landing-side portion located near the engagement device to allow the engagement element or the engagement roller to move in the horizontal direction and opens the cage door. The engagement element or the engagement roller includes a pair of engagement members that engage the vertical movement of the engagement roller, and each of the engagement members is an engagement roller when the cage door is in a fully closed state or a state close to a fully closed state. Or since the notch part which enables an engagement child to pass through was provided, it can prevent that a car raises / lowers at the time of a door opening, without requiring a drive part like the past. Therefore, there is no possibility of causing a failure associated with the drive unit, and high reliability can be ensured. In addition, since the drive unit is not provided, the apparatus can be reduced in size, and the production cost can be reduced as compared with the prior art.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the door opening / closing prevention device for an elevator according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing a first embodiment of a door opening / lowering preventing device for an elevator according to the present invention, and FIG. 2 is an engaging device and a first locking member when the door is closed in the first embodiment shown in FIG. FIG. 3 is a perspective view of a main part showing a positional relationship with the second locking member, and FIG. 3 shows an engagement device, a first locking member, and a second locking member when the door is opened in the first embodiment shown in FIG. FIG. 4 is a principal part longitudinal cross-sectional enlarged view of FIG. 3.

  The door opening / closing prevention device according to the first embodiment is provided in an elevator, for example, an elevator, and as shown in FIG. 1, a car door 2 provided in a car 1 and a not-shown illustration provided in a landing. The platform door, the car door 2 and the platform door are linked to open and close. The engagement element 4 and a first engagement roller 5 that moves in the horizontal direction as the engagement element 4 moves in the horizontal direction, And an engaging device 3 including two engaging rollers 5a. For example, the cage 1 in the vicinity of the engagement device 3 is allowed to move in the horizontal direction of the engagement element 4, and when the car door 2 is opened, the first engagement roller 5 and the second engagement roller 5 a are moved in the vertical direction. A pair of first locking members 6 and second locking members 7 for locking relative movement are provided.

  Moreover, the above-mentioned engaging element 4 is provided in the car door 2, for example, and the above-mentioned first engaging roller 5 and second engaging roller 5a are provided in the landing door. The engaging element 4 has an L-shaped hole 4a1, an L-shaped hole 4a2, an L-shaped hole 4b1, and an L-shaped hole 4b2 through which the first locking member 6 and the second locking member 7 are inserted. It is composed of a U-shaped plate member having both side plates 4a and 4b that can be arranged so as to sandwich the combination roller 5 and the second engagement roller 5a, and a back plate 4c connected to the side plates 4a and 4b. Yes. Each of the first locking member 6 and the second locking member 7 extends in the horizontal direction, and when the car door 2 is opened, for example, in the vertical direction of the first engagement roller 5 and the second engagement roller 5a. When the first overhanging portion 6a and the second overhanging portion 7a have a first overhanging portion 6a and a second overhanging portion 7a, respectively, and the car door 2 is fully closed or close to being fully closed. A first notch portion 6b and a second notch portion 7b that allow passage of the first engagement roller 5 and the second engagement roller 5a are formed.

  1st Embodiment comprised in this way is 1st notch part 6b and 2nd notch part of a pair of latching members 6 and 7 with which the cage | basket | car 1 is equipped, when the cage | basket | car 1 landes in a regular position. Each of the first engagement roller 5 and the second engagement roller 5a fixed to a landing door (not shown) is accommodated in 7b. From this state, by moving the first engagement roller 5, the second engagement roller 5a, and the engagement element 4 in the horizontal direction by a door driving device (not shown), the car door 2 is fully closed or close to being fully closed. Transition to full open. When the car door 2 is fully opened, the relative movement in the vertical direction of the first engaging roller 5 and the second engaging roller 5a accompanying the raising and lowering of the car 1 is the first overhanging portion 6a of the pair of first locking members 6. The second locking member 7 is locked, that is, blocked by the second overhanging portion 7b. Thereby, the raising / lowering of the car 1 during the opening of the car door 2 is prevented.

  According to the first embodiment, the car 1 is provided with the engaging device 4 and the engaging device 3 including the first engaging roller 5 and the second engaging roller 5b without requiring a special driving unit. The pair of first locking members 6 and second locking members 7 can prevent the car 1 from going up and down when the door is opened. Therefore, there is no possibility of causing a failure associated with the drive unit, and high reliability can be ensured. In addition, since the drive unit is not provided, it is possible to reduce the size of the apparatus, thereby reducing the manufacturing cost.

  FIG. 5 is a main part perspective view showing a state when the door is closed in the second embodiment of the present invention, and FIG. 6 is a main part perspective view showing a state when the door is opened in the second embodiment of the present invention.

  The door opening / closing prevention device according to the second embodiment also has a pair of first locking members 24 and second locking members 25 fixed to the car 1 by bolts 26 to 29, respectively. The first locking member 24 and the second locking member 25 have a first overhanging portion 24a and a second overhanging portion 25a, respectively. Each of the first overhanging portion 24a and the second overhanging portion 25a includes a first that allows the engagement element 21 of the engagement device 20 to pass through when the car door 2 is in a fully closed state or almost fully closed. A notch 24b and a second notch 25b are formed.

  In the second embodiment, the engagement element 21 of the engagement device 20 is fixed to a landing door (not shown), and a pair of first engagement roller 22 and second engagement roller 23 arranged in parallel with the car door 2 are provided. It is fixed.

  Even in the second embodiment, the engagement device 20 including the engagement element 21, the first engagement roller 22, and the second engagement roller 23, and the pair of first locking members 24 provided in the car 1 portion. The second locking member 25 can prevent the car 1 from going up and down when the door is opened, and an effect equivalent to that of the first embodiment can be obtained.

  In the first and second embodiments, the car 1 is provided with the first locking members 6 and 24 and the second locking members 7 and 25. In this way, the car 1 has a pair of hooks. Instead of providing the stop member, a pair of locking members may be provided on a landing side (not shown) located near the engagement device.

  For example, the first locking member 6 and the second locking member 7 shown in FIGS. 1 to 4 are provided on the landing side portion, the engaging element 4 is fixed to a landing door (not shown), and the pair of first engaging rollers 5, The second engagement roller 5a may be configured to be fixed to the car door 2.

  In this configuration, when the car 1 is landed at a regular position, the car is provided on the first notch 6b and the second notch 7b of the pair of locking members 6 and 7 provided on the landing side. Each of the first engagement roller 5 and the second engagement roller 5a fixed to the door 2 is housed. From this state, by moving the first engagement roller 5, the second engagement roller 5a, and the engagement element 4 in the horizontal direction by a door driving device (not shown), the car door 2 is fully closed or close to being fully closed. Transition to full open. When the car door 2 is fully opened, the vertical movements of the first engagement roller 5 and the second engagement roller 5a associated with the raising and lowering of the car 1 cause the first overhanging portion 6a and second of the pair of first locking members 6 to move upward and downward. The second overhanging portion 7b of the locking member 7 is locked, that is, blocked. Thereby, the raising / lowering of the car 1 during the opening of the car door 2 is prevented.

  Even if comprised in this way, the effect equivalent to 1st, 2nd embodiment mentioned above is acquired.

  Even in the embodiment configured as described above, the engagement device 20 including the engagement element 21, the first engagement roller 22, and the second engagement roller 23, and a pair of first locks provided in one portion of the car With the member 24 and the second locking member 25, the car 1 can be prevented from going up and down when the door is opened, and the same effect as in the first embodiment can be obtained.

  5 and 6, the first locking member 24 and the second locking member 25 are provided on the landing side portion, and a pair of first engaging roller 22 and second engaging roller 23 are provided on a landing door (not shown). Even if it is fixed and the engaging element 21 is fixed to the car door 2, the same effect as described above can be obtained.

It is a perspective view which shows 1st Embodiment of the door opening / lowering prevention apparatus of the elevator which concerns on this invention. It is a principal part perspective view which shows the positional relationship of the engaging apparatus at the time of the door closing in 1st Embodiment shown in FIG. 1, and a 1st, 2nd locking member. It is a principal part perspective view which shows the positional relationship of the engaging apparatus at the time of the door opening in 1st Embodiment shown in FIG. 1, and a 1st, 2nd locking member. It is a principal part longitudinal cross-sectional enlarged view of FIG. It is a principal part perspective view which shows the state at the time of door closing in 2nd Embodiment of this invention. It is a principal part perspective view which shows the state at the time of door opening in 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Car door 3 Engagement device 4 Engagement element 4a Side plate 4a1 L-shaped hole 4a2 L-shaped hole 4b Side plate 4b1 L-shaped hole 4b2 L-shaped hole 4c Back plate 5 1st engagement roller 5a 2nd engagement roller 6 1st Locking member 6a First overhanging portion 6b First notch portion 7 Second locking member 7a Second overhanging portion 7b Second notch portion 8 Bolt 9 Bolt 10 Bolt 11 Bolt 20 Engaging device 21 Engaging element 22 First engagement Combined roller 23 Second engaging roller 24 First locking member 24a First overhang portion 24b First notch portion 25 Second locking member 25a Second overhang portion 25b Second notch portion 26 Bolt 27 Bolt 28 Bolt 29 Bolt

Claims (6)

A car door provided in an elevator, a car door provided in a car, a landing door provided in a landing, and an opening and closing operation of the car door and the landing door are interlocked. In the door opening / closing prevention device for an elevator having an engagement device composed of an engagement roller that moves in the horizontal direction together with the movement in the horizontal direction,
The cage portion in the vicinity of the engagement device is allowed to move in the horizontal direction of the engagement element or the engagement roller, and the engagement element or the vertical direction of the engagement roller when the cage door is opened. A pair of locking members for locking the relative movement of each of the engaging rollers, and each of the locking members is the engagement roller or the engagement element when the cage door is in a fully closed state or almost fully closed state. A door opening / lowering preventing device for an elevator, comprising a notch portion that allows passage of the door. The door opening / closing prevention device for an elevator according to claim 1,
A door opening / lowering prevention device for an elevator, wherein the cage door includes the engagement element, and the landing door includes the engagement roller. The door opening / closing prevention device for an elevator according to claim 1,
The engaging element is formed of a U-shaped plate member having an L-shaped hole through which the locking member is inserted and having both side plates that can be disposed so as to sandwich the engaging roller, and each of the locking members Are extended in the horizontal direction, and have an overhanging portion that prevents the engagement roller from moving in the vertical direction when the car door is opened, and the overhanging portion is provided to fully close or fully close the car door. A door opening / lowering preventing device for an elevator, wherein the notch portion that allows the engagement roller to pass therethrough is formed in a close state. The door opening / closing prevention device for an elevator according to claim 1,
An elevator opening / lowering prevention device for an elevator, wherein the cage door includes the engagement roller, and the landing door includes the engagement element. The door opening / closing prevention device for an elevator according to claim 4,
The engagement roller is composed of a pair of rollers arranged in parallel in the horizontal direction,
The engaging element is formed of a flat plate member that extends in the vertical direction and can be inserted between the pair of rollers. Each of the locking members extends in the horizontal direction, and when the car door is opened, the engaging member is The overhanging portion for preventing movement of the joint in the vertical direction, and the cutout portion for allowing the engagement child to pass through the overhanging portion when the cage door is in a fully closed state or almost fully closed state. An elevator opening / lowering prevention device for an elevator, characterized in that is formed. A car door provided in an elevator, a car door provided in a car, a landing door provided in a landing, and an opening and closing operation of the car door and the landing door are interlocked. In the door opening / closing prevention device for an elevator having an engagement device composed of an engagement roller that moves in the horizontal direction together with the movement in the horizontal direction,
The landing-side portion located in the vicinity of the engagement device is allowed to move in the horizontal direction, and the vertical movement of the engagement element or the engagement roller is locked when the car door is opened. Each of the locking members is configured to pass through the engagement roller or the engagement element when the cage door is in a fully closed state or a state close to a fully closed state. An elevator opening / lowering prevention device for an elevator characterized by comprising a section.

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