JP7416583B2 - elevator - Google Patents

Description

TECHNICAL FIELD This disclosure relates to elevators.

During normal operation of an elevator, when a car lands on the landing and the car side door opens, the lock that keeps the landing door stationary relative to the landing is released in conjunction with the opening operation of the car side door, and the landing door opens. It is configured to open. However, in the event of an elevator malfunction or maintenance inspection, including when a passenger is trapped in a car, the landing door must be opened and closed in order to rescue the passenger, even if it cannot be confirmed whether the car has landed on the landing or not. There may be cases where this is not necessary. For such cases, as described in Patent Document 1, elevators are designed so that when a key is inserted from a key insertion part provided on the landing side of the landing door, the lock is released. The landing door can be opened manually.

Utility Model Publication No. 58-170365

When opening the landing door by inserting the key into the key insertion part, the car has not landed on the landing and the opening after opening the landing door connects to the hoistway (cavity) rather than the car room. Situations may arise. Even if such a situation were to occur, it would be of great significance if maintenance workers and the like could be prevented from falling into the hoistway, as this would ensure the safety of all personnel.

Therefore, an object of the present disclosure is to provide an elevator that can prevent people from falling into the hoistway through the opening after the landing door is manually opened.

In order to solve the above problems, an elevator according to the present disclosure includes a non-automatic operation detection means for detecting that the car is not ascending or descending automatically during non-automatic operation, and a landing door is manually operated during the non-automatic operation. opening degree detection means for detecting a physical quantity that can specify the speed at which the hall door opens when the hall door is opened; Door deceleration means is provided for reducing the opening speed of the hall door when the value is within the range.

According to the present disclosure, when the speed at which the hall door opens is equal to or higher than a predetermined value, the speed at which the hall door opens is reduced. Therefore, it is possible to prevent the landing door from being manually opened all at once, and it is possible to prevent people from falling into the hoistway through the opening that appears after the landing door is opened.

Further, the elevator according to the present disclosure includes a non-automatic operation detection means for detecting that the car is in non-automatic operation when the car is not ascending or descending automatically, and when the landing door is manually opened during the non-automatic operation. opening degree detection means for detecting a physical quantity that can specify the acceleration when the landing door opens; and the physical quantity is a value within a deceleration required range indicating that the acceleration when the landing door opens is equal to or higher than a predetermined value. Door deceleration means is provided to reduce the opening speed of the landing door in certain cases.

As a measure for determining whether the hall door is opened all at once, instead of the speed at which the hall door is opened, the acceleration at the time the hall door opens may be used.

According to the present disclosure, when the acceleration when the hall door opens is equal to or higher than a predetermined value, the speed at which the hall door opens is reduced. Therefore, it is possible to prevent the landing door from being manually opened all at once, and it is possible to prevent people from falling into the hoistway through the opening that appears after the landing door is opened.

Further, in the present disclosure, the opening degree detection means may be a rotational speed detection device that detects the rotational speed of a hanger roller that is rotatably supported by a hanger plate and moves on a rail installed in a landing.

According to this configuration, since the opening degree detection means is a rotation speed detection device that detects the rotation speed of the hanger roller, the speed of the landing door can be detected easily, inexpensively, and accurately using a resolver or a pulser ring.

Further, in the present disclosure, the opening degree detection means may be an acceleration sensor that detects the acceleration of the hall door relative to the hall when the hall door opens.

According to this configuration, a known acceleration detection device can be used, for example, an acceleration sensor that vibrates a weighted spring at a resonant frequency, an optical acceleration sensor, an acceleration sensor using a semiconductor, or an acceleration sensor that detects a change in capacitance. The acceleration of the landing door can be detected simply, inexpensively, and accurately using a sensor or the like.

Further, in the present disclosure, the door deceleration means is positioned at a distance from the rail when the physical quantity is not within the deceleration required range, while the physical quantity is a value within the deceleration required range. The hanger plate may include a stopper that sometimes decelerates the landing door by contacting the rail, and may be installed on the hanger plate.

According to this configuration, the stopper of the door deceleration means installed on the hanger plate comes into contact with the rail when the physical quantity is within the required deceleration range, so the speed of the hanger plate relative to the rail can be reliably decelerated. In turn, the landing door can be reliably decelerated.

Further, in the present disclosure, the door deceleration means is located at a distance from a hanger roller that moves on a rail installed in the landing when the physical quantity is not within the deceleration required range; The stopper may be installed on the hanger plate, and may include a stopper that decelerates the landing door by contacting the hanger roller when the physical quantity is within the required deceleration range.

According to this configuration, the stopper of the door deceleration means installed on the hanger plate comes into contact with the hanger roller when the physical quantity is within the required deceleration range, so the rotational speed of the hanger roller can be reliably decelerated. In turn, the landing door can be reliably decelerated.

Further, in the present disclosure, a case, a plunger having a case internal portion disposed within the case, a biasing member configured to apply an axial force to the plunger and disposed within the case, and a biasing member disposed within the case; a coil wound around the coil and disposed within the case, the stopper being connected to one end of the plunger and located outside the case, and when current flows through the coil. The stopper may move in a direction away from the case as the force received from the biasing member increases.

According to this configuration, deceleration of the landing door can be realized easily and inexpensively.

Further, in the present disclosure, the door deceleration means includes a cylinder, oil filled in the cylinder, a rod member having an advancing/retracting section that moves forward and backward within the cylinder, and the advancing/retracting section that moves forward and backward when the advancing and retreating section enters the cylinder. has a force varying unit that varies a force based on the hydraulic pressure of the oil that is applied to the physical quantity, and when the physical quantity is a value within the deceleration necessary range, the physical quantity is a value not within the deceleration necessary range. The force varying section may operate so as to increase the force that the advancing/retracting section receives.

According to this configuration, it is possible to realize a door deceleration means with a large braking force using hydraulic pressure.

Further, in the present disclosure, power may be supplied to the opening degree detection means based on an operation of releasing an interlock mechanism for enabling the opening operation of the landing door regardless of the position of the car. good.

When the landing door is opened manually, the interlock mechanism must be released immediately before the person opens the door. According to this configuration, electric power is not supplied to the opening degree detection means until just before the hall door opens. Therefore, the operating cost of the opening degree detection means can be reduced.

Further, in the present disclosure, the non-automatic operation detection means may detect an operation of releasing an interlock mechanism that enables the opening operation of the landing door regardless of the location of the car.

As described above, when the landing door is opened manually, the interlock mechanism is released immediately before the person opens the landing door. According to this configuration, when the landing door is manually opened, the door deceleration means can always be placed in an operable standby state.

Further, in the present disclosure, the non-automatic operation detection means is a control device that controls the raising and lowering of the car, the opening degree detection means transmits a signal to the control device using wireless, and the control device , the signal may be transmitted to the door deceleration means using radio.

When setting the elevator mode to maintenance mode in which control including elevator car elevation is performed manually, a person must change the elevator mode to maintenance mode using the control unit inside the car or the maintenance computer connected to the connection port. A signal indicating that the car is to be moved is sent to a control device that controls the elevator car. Furthermore, while such a control device is installed at a stationary location with respect to the hoistway, when the control device receives a signal from the opening degree detection means or when the door deceleration means is activated, the degree of opening is determined. The detection means and the door deceleration means are moved relative to the hoistway.

According to the present disclosure, since the non-automated operation detection means is a control device that performs control including elevator control of the car, there is no need to install a new non-automated operation detection means, and there is no need to install a new non-automated operation detection means, and it is possible to prevent people from falling into the hoistway. This can be easily and inexpensively prevented using existing control equipment.

Furthermore, the opening degree detecting means transmits a signal to its control device using radio, and the control device transmits a signal to the door deceleration means using radio. Therefore, in comparison with the case where the opening degree detection means transmits a signal to the control device using only a wire, or the control signal is transmitted from the control device to the door deceleration means using only a wire, Signals can be exchanged between the control device located at each stage and the opening degree detection means and door deceleration means moving relative to the hoistway with a simple structure at each stage.

According to the elevator according to the present disclosure, it is possible to prevent a person from falling into the hoistway through the opening after the landing door is manually opened, and to ensure the safety of the person.

FIG. 1 is a schematic diagram of an elevator car door according to a first embodiment of the present disclosure when viewed from the landing side. It is a schematic diagram which shows the relative positional relationship of one landing door with respect to one car door when seen from above. It is a schematic diagram explaining an example of the structure of the mechanism which makes it possible to move a landing door manually. It is a schematic diagram explaining an example of the structure of the mechanism which makes it possible to move a landing door manually. It is a figure explaining the connection structure of an oil damper, a motor with a rotation operation part, and a rotation transmission cable. It is a figure explaining the structure of an oil damper and door deceleration operation. It is a figure explaining the structure of an oil damper and door deceleration operation. It is a top view when the door device upper part by the hall door side in the elevator of 2nd Embodiment is seen from the back side. It is a figure explaining the structure and operation|movement of the door deceleration means of the elevator of 2nd Embodiment. (a) is a schematic diagram showing the state of the first and second door deceleration means when no current is flowing through the coil, and (b) is a schematic diagram showing the state of the first and second door deceleration means when current is flowing through the coil. It is a schematic diagram showing the state of the 2nd door deceleration means. FIG. 9 is a diagram corresponding to FIG. 8 in an elevator according to a modification of the second embodiment. (a) is a diagram corresponding to FIG. 10(a) in an elevator of a modification of the second embodiment, and (b) is a diagram corresponding to FIG. 10(b) in an elevator of a modification of the second embodiment. It is a diagram.

Embodiments according to the present disclosure will be described in detail below with reference to the accompanying drawings. Note that when a plurality of embodiments, modifications, etc. are included below, it is assumed from the beginning that a new embodiment will be constructed by appropriately combining their characteristic parts. Furthermore, in the following embodiments, the same components are denoted by the same reference numerals in the drawings, and overlapping explanations will be omitted. Furthermore, the plurality of drawings include schematic diagrams, and the dimensional ratios of each member, such as length, width, and height, do not necessarily match between different drawings. Furthermore, among the constituent elements described below, constituent elements that are not described in the independent claim indicating the most significant concept are optional constituent elements and are not essential constituent elements. In addition, in this specification, when the word "abbreviation" is used, it is used in the same meaning as the word "roughly speaking", and the requirement "omitted" means that if a person looks roughly like... It is filled. For example, the requirement of being approximately circular is satisfied if the person looks approximately circular.

(First embodiment)
FIG. 1 is a schematic diagram of a car door 5 of an elevator 1 according to a first embodiment of the present disclosure when viewed from the landing side, and FIG. It is a schematic diagram which shows the relative positional relationship of the landing door 20a. Moreover, FIG.3 and FIG.4 is a schematic diagram explaining an example of the structure of the mechanism which makes it possible to move the landing door 20a manually. Note that there are a wide variety of mechanisms that make it possible to manually move the landing door, not only the mechanism described below. The elevator of the present disclosure may employ any of these mechanisms.

First, the opening operation of the hall door 20a will be explained using FIGS. 1 to 4. Referring to FIG. 1, in this embodiment, a car door 5 is driven to open and close by a door drive unit 3 to which a motor 2 is connected. The car door 5 is suspended from the rail 6 of the door drive unit 3 by a hanger roller 15 attached to the hanger plate 4, and is opened and closed by the hanger roller 15 rolling on the rail 6.

An endless belt 9 is wound between a drive pulley 7 of the door drive unit 3 and an idler pulley 8 provided at a symmetrical position in the drive pulley 7 and the door drive unit 3. The center axes of the drive pulley 7 and the idler pulley 8 are located on a horizontal plane, and the center axis of the drive pulley 7 is approximately parallel to the center axis of the idler pulley 8. The motor 2 is connected to a drive pulley 7 , and the rotation of the motor 2 is transmitted to the drive pulley 7 . A first gripping member 10a for gripping the lower part of the belt 9 is attached to the first hanger plate 4a of the hanger plate 4, and a second gripping member 10b for gripping the upper part of the belt 9 is attached to the second hanger plate 4b. It is being Furthermore, legs 11 are attached to the lower end of the car door 5, and the legs 11 fit into the grooves of the car sill 12 and guide the lower end of the car door 5 when the car door 5 opens and closes. ing.

The car door 5 is provided with an engagement vane 13 extending in the height direction of the car door 5, and the landing door (not shown) is provided with an engagement vane 13 that engages when the door is opened or closed. Rollers 14a, 14b are provided. When the car door 5 is fully closed, the engagement vane 13 does not engage with the engagement rollers 14a, 14b, so that these parts 13, 14a, 14b are not damaged when the elevator 1 moves up and down. It has become.

The door opening operation is started as follows. Specifically, when the motor 2 operates, the belt 9 wound between the drive pulley 7 and the idler pulley 8 circulates, and the car door 5 moves from the fully closed state to the opening direction. As described above, the first gripping member 10a grips the lower part of the circulating belt 9, while the second gripping member 10b grips the upper part of the belt 9. Therefore, when the belt 9 moves in circulation, the first gripping member 10a and the second gripping member 10b move to opposite sides in the width direction of the car door 5, and as a result, the one side that is integrated with the first gripping member 10a The door 5b and the other side door 5a integrated with the second gripping member 10b move to opposite sides.

When the car door 5a moves by the gap between the engagement vane 13 and the engagement roller 14a, the engagement vane 13 engages with the engagement roller 14a of the landing door 20a, and the door opening force of the car door 5a is applied to the landing door. 20a, the car door 5 and the landing door 20 operate in conjunction with each other to open the door. On the other hand, when the door is closed, the operation is opposite to the operation when the door is opened, and the car door 5a and the landing door 20a start the closing operation in conjunction with each other with the engagement vane 13 and the engagement roller 14b engaged. . Although not described in detail, one landing door 20a and the other landing door (not shown) have the same structure as the car door 5, for example, and move in opposite directions using a pair of pulleys and an endless belt stretched therebetween. After the landing door 20 is fully closed, the car door 5 is fully closed.

The interlocking operation of the car door 5a on one side and the landing door 20a on one side will be explained in more detail using FIGS. 2 to 4. Referring to FIG. 2, when the car door 5a moves in the opening direction indicated by arrow A, the engagement vane 13 comes into contact with the engagement roller 14a, as shown in FIGS. 2 and 3. Push out in the opening direction shown in the direction of arrow A. Then, as shown in FIG. 4, the interlock main body 30, which is integrally formed with the engagement rollers 14a and 14b, rotates around the rotating shaft 31, which is rotatably fixed to the landing hanger 32, as indicated by arrow C. It rotates clockwise, and as a result, the locking pawl 30a provided on the closing direction side shown in the direction of arrow B on the interlock body 30 is disengaged from the engagement recess 35a of the locking member 35 fixed to the landing 38. do. The interlock mechanism 25 (see FIG. 3) includes a locking claw 30a of the interlock body 30 and an engagement recess 35a of the locking member 35. When the locking claw 30a disengages from the engagement recess 35a, the interlock mechanism 25 is released and the landing door 20a becomes movable in the opening direction.

On the other hand, when the car door 5a moves in the closing direction, the engagement vane 13 pushes out the engagement roller 14b in the closing direction, the engagement roller 14b moves in the closing direction, and as a result, it becomes integral with the engagement roller 14b. The landing door 20a also moves in the closing direction. As shown in FIG. 4, the locking pawl 30a has a tapered surface 30b on the lower side of the end in the closing direction, which changes upward as it goes in the closing direction, and the locking member 35 has a tapered surface 30b on the lower side of the end in the closing direction. It has a tapered surface 35b on the upper side of the end portion thereof, which fluctuates downward as it goes in the opening direction and corresponds to the tapered surface 30b.

When the engagement roller 14b moves in the closing direction due to the pressure from the engagement vane 13, the tapered surface 30b comes into contact with the tapered surface 35b, moves on the tapered surface 35b in the closing direction, and after getting over the tapered surface 35b, the engagement roller 14b is moved in the closing direction. It enters into the mating recess 35a. Due to this operation, the landing door 20a and the car door 5a are closed, and the interlock mechanism 25 is locked, making it impossible for a person to manually open the landing door 20. It will not fall out of the opening.

However, when the elevator 1 breaks down, including when a passenger is trapped in a car, or during maintenance inspection, the landing door 20 opens and closes to rescue the passenger even when it is not possible to confirm whether the car has landed on the landing or not. may have to be done. Next, the operation of opening the hall door 20 in such a case will be explained.

As shown in FIG. 3, the landing door 20a is provided with a through hole 37 as a key insertion portion. When viewed from the thickness direction of the landing door 20a, the through hole 37 is a part of the bar member 39 that is fixed to the interlock body 30 and extends in the vertical direction when the landing door 20a is in the closed state. Overlap. Although not described in detail, a person inserts a rod-shaped key (not shown) into a part of the through hole 37 that is not covered by the rod member 39. After that, when a person uses one hand to apply a force in the opening direction to the landing door 20a and uses the other hand to press the bar member 39 in the closing direction with a key, as shown in FIG. , the interlock main body 30 rotates clockwise around the rotating shaft 31, the interlock mechanism 25 is released, and simultaneously with the release, the landing door 20a moves in the opening direction. The manual opening operation of the landing door 20 is performed by this series of operations.

The operation of rotating the interlock body 30 clockwise around the rotating shaft 31 with the key is an operation of releasing the interlock mechanism 25 that allows the landing door 20 to open regardless of the position of the car. It becomes. Note that, unlike the description of this embodiment, the key insertion portion may not be provided on the landing door itself but may be provided around the landing door. For example, the key insertion portion may be provided around the landing door. For example, a gap between a pair of landing doors may be used as the key insertion portion. good.

As shown in FIG. 3, the elevator 1 includes a door speed reduction mechanism 40. This door deceleration mechanism 40 reduces the moving speed of the hall door 20 in the opening direction when the hall door 20 opens at a predetermined speed or higher when a person manually opens the hall door 20. Next, the structure and operation of the door speed reduction mechanism 40 will be explained. As shown in FIG. 3, the door deceleration mechanism 40 includes a key detection unit 41 as an example of non-automatic operation detection means, an oil damper 42, and a hydraulic pressure adjustment mechanism 45. Adjust.

The key detection unit 41 includes, for example, a piezoelectric element, and the piezoelectric element is installed at a portion of the bar member 39 that is in contact with the key. Accordingly, when an attempt is made to manually open the landing door 20a using the key, the key presses the piezoelectric element, force is applied to the piezoelectric body of the piezoelectric element, and the force is converted into an electrical signal. Therefore, the operation of opening the landing door 20a with a key is an operation performed during non-automatic operation in which the car does not go up and down automatically, for example, when a maintenance mode is selected in which the car goes up and down manually. At the same time, since this is the start operation (the operation immediately before the landing door 20a is opened manually), the piezoelectric element detects the pressure, thereby indicating that the car is not in automatic operation and is not being raised or lowered in automatic operation. Furthermore, it is possible to detect that the operation of manually opening the landing door 20a has started. When the piezoelectric body of the piezoelectric element is pressed with the key, an electric signal is outputted to the hydraulic pressure adjustment mechanism 45 through the line 46.

The hydraulic pressure adjustment mechanism 45 includes, for example, an acceleration sensor 50, a sensor power supply circuit 51, a motor 52 with a rotary operation section, a motor power supply circuit 53, a power supply 54, and a control device 55.

The control device 55 includes a control section 55a and a storage section 55b. The control device 55 is preferably configured by a computer, for example, a microcomputer, and the control section 55a, that is, the processor, includes, for example, a CPU (Central Processing Unit). Further, the storage unit 55b includes a nonvolatile memory such as a ROM (Read Only Memory), and a volatile memory such as a RAM (Random Access Memory). The CPU reads and executes programs etc. stored in advance in the storage section 55b. Furthermore, the nonvolatile memory stores in advance a control program, predetermined threshold values, and the like. Further, the volatile memory temporarily stores read programs and processing data.

When the control section 55a receives the electrical signal from the key detection section 41 via the line 46, it transmits a control signal to the switching section of the sensor power supply circuit 51 to turn on the switching section. Through this control, power is supplied from the power supply 54 to the acceleration sensor 50, and the acceleration sensor 50 detects acceleration. The power source 54 can be composed of, for example, a single cell or an assembled battery, and in this case, it is necessary to provide a power supply line that electrically connects the stationary part that is stationary relative to the landing and the landing door 20a that moves relative to the landing. Therefore, the configuration of the hydraulic pressure adjustment mechanism 45 can be made simple. Note that the acceleration sensor 50 and the motor 52 with the rotary operation unit may be driven by electric power from a commercial power source using such a power supply line without providing a power source.

The acceleration sensor 50 outputs a signal including information on the acceleration of the hall door 20a with respect to the hall to the control unit 55a. Acceleration is an example of a physical quantity. Based on the signal, the control unit 55a compares the acceleration of the hall door 20a with an acceleration threshold stored in advance in the storage unit 55b. When the acceleration of the landing door 20a is equal to or greater than the acceleration threshold, the control section 55a transmits a control signal to the switching section of the motor power supply circuit 53 to turn on the switching section for a predetermined period of time. Through this control, electric power is supplied from the power source 54 to the motor 57 (see FIG. 5) of the motor 52 (see FIG. 5) with a rotary operation section. The switching parts of the sensor power supply circuit 51 and the motor power supply circuit 53 can be configured with transistors or the like.

FIG. 5 is a diagram illustrating a connection structure of the oil damper 42, the motor 52 with a rotation operation section, and the rotation transmission cable 56. As shown in FIG. 5, the motor 52 with a rotation operation section has a motor 57 and a disk-shaped rotation operation section 58, and the center axis of the rotation operation section 58 is the center axis of the output shaft 57a of the motor 57. The output shaft 57a is fixed to the end of the output shaft 57a in a state that substantially coincides with the output shaft 57a. Further, the rotation transmission cable 56 is connected to the radially central portion of the end surface of the rotation operating section 58 opposite to the output shaft 57a side, and to the one side end surface of the disc-shaped rotating member 47 that adjusts the oil pressure in the oil damper 42. Connect the central part.

With this structure, when the motor 57 is driven and the output shaft 57a rotates, and the rotation operation section 58 rotates accordingly, the rotational power of the rotation operation section 58 is transmitted to the oil damper 42 via the rotation transmission cable 56. It is transmitted to the rotating member 47. As the rotation transmission cable 56, for example, a cable having a structure in which multiple coil springs are inserted into a flexible sleeve can be used. Here, the multi-coil spring includes an inner coil spring and an outer coil spring, each of the inner and outer coil springs has a structure in which a metal wire with spring properties is wound, and the inner coil spring is connected to the outer coil spring. wrapped in the opposite direction. The rotation transmission cable 56 may be fixed to the back side of the landing door 20a (see FIG. 3), for example, by a holding means 94.

6 and 7 are diagrams illustrating the structure of the oil damper 42 and the door deceleration operation. The oil damper 42 has a main body 80 and a piston rod 19 as a rod member, and the main body 80 includes an outer cylinder 91 and an inner cylinder 93. The main body 80 is fixed to the upper back surface of the hall door 20a, and the piston rod 19 is fixed to the upper part of the hall. Note that the main body may be fixed to the upper part of the hall, and the piston rod may be fixed to the upper part of the back surface of the hall door.

The inner cylinder 93 is disposed within the outer cylinder 91 and the piston head 89 of the piston rod 19 is slidably fitted into the inner cylinder 93. A return spring 59 is also mounted between the end portion 88 of the inner cylinder 93 and the piston head 89. Further, the piston rod 19 is rotatably supported with respect to the outer cylinder 91 by a bearing 61. A gap 63 is formed between the inner surface of the outer cylinder 91 and the outer surface of the inner cylinder 93. The front part 65a of the piston head 89 in the interior 65 of the inner cylinder 93 (the part of the interior 65 of the inner cylinder 93 where the return spring 59 is attached) and the gap 63 are connected to a first passage 67 passing through the piston head 89. It communicates with a second passage 69 passing through the inner cylinder 93 . The first passage 67 communicates the front part 65a of the piston head 89 in the interior 65 of the inner cylinder 93 with the rear part 65b of the piston head 89 in the interior 65 of the inner cylinder 93. Further, the second passage 69 communicates the gap 63 with the rear portion 65b of the interior 65 of the inner cylinder 93. Further, a check ball 71 is movably disposed within the first passage 67.

The rotating member 47 includes a disk portion 47a and a shaft portion 47b extending in the axial direction from the center of one end surface of the disk portion 47a, and the shaft portion 47b has a male thread 47c. The oil damper 42 adjusts the opening speed of the landing door 20a by adjusting the tightening amount of the male screw 47c of the shaft portion 47b. Specifically, the end component 88 of the inner cylinder 93 has a through hole 73 communicating from the inside 65 of the inner cylinder 93 to the outside of the outer cylinder 91, the through hole 73 is formed with a female thread 75, and the female thread 75 has an adjustment screw. The male threaded portion 77 of the screw 21 is screwed together. Further, an adjustment ball 79 is connected to the inner end of the male threaded portion 77, and the adjustment ball 79 is located within the through hole 73.

The through hole 73 and the gap 63 are communicated via the third passage 81. Further, a foam accumulator 83 such as a sponge is disposed within the gap 63. The interior 65 of the inner cylinder 93 and the gap 63 are filled with oil. When the landing door 20a is closed, the oil damper 42 is in the state shown in FIG. 6. When the landing door 20a is opened from this state, the piston rod 19 is pushed into the oil damper 42, and the piston head 89 approaches the end component 88 of the inner cylinder 93 inside the inner cylinder 93 while compressing the return spring 59. Go in the direction you want. When the piston head 89 begins to move in this direction, the check ball 71 closes the first passage 67.

Then, the oil in the front portion 65a of the interior 65 of the inner cylinder 93 flows into the gap 63 through the through hole 73 and the third passage 81. A portion of the oil flowing into the gap 63 passes through the second passage 69 and enters the rear part 65b of the interior 65 of the inner cylinder 93, but when the rear part 65b is filled with oil, the oil in the gap 63 flows into the foam accumulator. Compress 83. The foam accumulator 83 is compressed according to the volume of the piston rod 19 pushed into the interior 65 of the inner cylinder 93.

When the force that opens the landing door 20a is released, the return spring 59 returns the piston rod 19 in the opposite direction. When the piston rod 19 starts moving to protrude from the outer cylinder 91, the check ball 71 in the first passage 67 moves in the direction of opening the first passage 67, and the oil in the rear part 65b of the inside 65 of the inner cylinder 93 is It flows through the first passage 67 into the front portion 65a of the interior 65 of the inner cylinder 93. Further, the oil in the gap 63 flows into the front portion 65a of the interior 65 of the inner cylinder 93 through the third passage 81 and the through hole 73. The foam accumulator 83 within the compressed gap 63 then expands.

By changing the tightening amount of the male thread 47c of the shaft portion 47b, the adjustment ball 79 can be advanced or retreated within the through hole 73, and the amount of oil that can pass through the through hole 73 can be changed. That is, when the tightening amount of the male thread 47c is reduced, the amount of oil that can pass through the through hole 73 increases, the piston rod 19 becomes easier to move, and the opening speed of the landing door 20a becomes faster.

On the other hand, when the tightening amount of the male screw 47c is increased, the amount of oil that can pass through the through hole 73 becomes smaller, the piston rod 19 becomes difficult to move, and the opening speed of the landing door 20a becomes slower. When the male screw 47c is tightened until the adjustment ball 79 closes the through hole 73, the movement of the piston rod 19 is blocked, and the landing door 20a can be brought to an emergency stop.

The rotating member 47 can be rotated by the rotational power of the rotational operation section 58 that is rotated by the drive of the motor 57, and the male screw 47c can be tightened. Therefore, by controlling the drive of the motor 57, the opening speed of the hall door 20a can be reduced. For example, the amount of tightening of the male screw 47c based on the drive of the motor 57 can be adjusted by adjusting the amount by which the adjustment ball 79 closes the through hole 73. By driving the motor 57 by matching the amount of tightening, the landing door 20a can be stopped in an emergency.

Therefore, in this embodiment, the motor 57 is driven when the acceleration of the landing door 20a during the opening operation of the landing door 20a is equal to or higher than a predetermined value, so that in the elevator 1, the car is not raised or lowered automatically. During automatic driving, when a person opens the hall door 20, if the acceleration during the opening operation of the hall door 20a exceeds a predetermined value, the hall door 20 can be brought to an emergency stop. The rotating member 47 is an example of a force varying section. In addition, the oil damper 42, the sensor power supply circuit 51, the motor 52 with rotation operation section, the motor power supply circuit 53, the power supply 54, the control device 55, and the rotation transmission cable 56 are connected to the door deceleration means 85 (see FIG. 3). Configure.

As described above, the elevator 1 includes a key detection unit (non-automatic operation detection means) 41 that detects that the car is not ascending or descending automatically during non-automatic operation, and a key detecting unit 41 that detects when the car is in non-automatic operation when the car is in non-automatic operation. an acceleration sensor (opening degree detection means) 50 that detects a physical quantity that can specify the acceleration when the landing door 20 opens when the landing door 20 is opened manually; A door deceleration means 85 is provided to reduce the opening speed of the hall door 20 when the value is within the required deceleration range indicating that the value is greater than or equal to the value.

According to the present disclosure, when the acceleration when the hall door 20 opens is equal to or higher than a predetermined value, the speed at which the hall door 20 opens is reduced. Therefore, it is possible to prevent the hall door 20 from being manually opened all at once, and it is possible to prevent a person from falling into the hoistway through the opening that appears after the hall door 20 is opened.

Further, the opening degree detection means may be an acceleration sensor 50 that detects the acceleration of the hall door relative to the hall when the hall door opens.

According to this configuration, a known acceleration sensor, for example, an acceleration sensor that vibrates a weighted spring at a resonant frequency, an optical acceleration sensor, an acceleration sensor using a semiconductor, or an acceleration sensor that detects a change in capacitance. The acceleration of the landing door 20 can be detected easily, inexpensively, and accurately using the above method.

In addition, the door deceleration means 85 includes an outer cylinder 91 , oil to be filled in the outer cylinder 91 , a piston rod (bar member) 19 having a reciprocating part that moves forward and backward within the outer cylinder 91 , and a retractable part that enters the outer cylinder 91 . It may also include a rotating member (force varying unit) 47 that varies the force based on the oil pressure applied to the advance/retreat unit. When the physical quantity has a value within the required deceleration range, the rotating member 47 may operate so as to increase the force received by the advancing/retracting section compared to when the physical quantity is not within the required deceleration range.

According to this configuration, the door deceleration means 85 with a large braking force can be realized using hydraulic pressure.

Further, even if power is supplied to the acceleration sensor (opening degree detection means) 50 based on the operation of releasing the interlock mechanism 25 to enable the opening operation of the landing door 20 regardless of the position of the car. good.

When the landing door 20 is opened manually, the interlock mechanism 25 is released immediately before the person opens the landing door 20. According to this configuration, power is not supplied to the acceleration sensor 50 until just before the landing door 20 opens. Therefore, the operating cost of the acceleration sensor 50 can be reduced.

Further, the key detection unit (non-automatic operation detection means) 41 may detect an operation to release the interlock mechanism 25 for enabling the opening operation of the landing door 20 regardless of the location of the car.

As described above, when the landing door 20 is opened manually, the interlock mechanism 25 is released immediately before the person opens the landing door 20. According to this configuration, when the landing door 20 is manually opened, the door deceleration means 85 can always be placed in an operable standby state, and the safety of the person who opens the landing door 20 can be ensured.

(Second embodiment)
In the first embodiment, the opening degree detection means is the acceleration sensor 50 that detects the acceleration of the hall door 20 with respect to the hall, and the door deceleration means is configured using the oil damper 42. However, the opening degree detection means may be a sensor that detects a physical quantity that can specify the speed of the hall door 20 relative to the hall, and the door deceleration means may be a mechanism that reduces the opening speed of the hall door without using hydraulic pressure. Next, a second embodiment that can realize such a technical concept will be described using FIGS. 8 to 12. Note that, in the second embodiment, descriptions of the same effects and modifications as those of the first embodiment will be omitted.

FIG. 8 is a plan view of the door device upper part 110 on the hall door 127 side in the elevator 101 of the second embodiment when viewed from the hall side, and FIG. 9 shows the structure and operation of the door deceleration means 140a of the elevator 101. FIG. In the second embodiment, similarly to the first embodiment, a key detection section (not shown) as a non-automatic driving detection means detects a key, and a control device (not shown) that receives a signal from the key detection section detects a key. ) is determined to be in non-automatic operation, power is supplied from a power source (not shown) to the opening degree detection means. On the other hand, in the second embodiment, the opening degree detection means is the rotation speed detection device 160, and the door deceleration means reduces the opening speed of the hall door 127 by electromagnetic force.

Specifically, as shown in FIG. 8, the rotation speed detection device 160 includes, for example, a pulser ring 131 and a magnetic field detection sensor 132. The pulser ring 131 is made of a plastic magnet ring in which magnetic poles of different polarities are provided alternately in the circumferential direction. This plastic magnet ring uses an injection-molded synthetic resin mixed with magnetic powder or a magnetic metal material such as sintered ferrite as a base material, and the required angular area in the circumferential direction is magnetized alternately into S and N poles. It is formed by Further, the magnetic field detection sensor 132 is composed of a Hall IC. This Hall IC has a structure in which an IC chip is molded with a protective cover made of synthetic resin.

The pulser ring 131 is fixed, for example, to a rotating shaft that fixes the hanger roller 125, and the magnetic field detection sensor 132 is arranged at a location on the hanger plate 120 that faces the pulser ring 131 in the radial direction. When the pulsar ring 131 rotates in synchronization with the rotation of the hanger roller 125, each magnetic pole of the pulsar ring 131 sequentially faces the non-rotating magnetic field detection sensor 132. Here, the magnitude of the magnetic field (lines of magnetic force) generated between the plurality of pairs of magnetic poles of the pulsar ring 131 increases and decreases periodically and continuously in the circumferential direction, and the direction of the magnetic field (lines of magnetic force) is alternately opposite in the circumferential direction. It has become.

Therefore, as the pulser ring 131 rotates, the direction of the magnetic field passing through the magnetic field detection sensor 132 sequentially rotates at a period according to the rotation speed. The magnetic field detection sensor 132 detects the periodic reversal of the direction of the magnetic field and outputs a pulse signal with a frequency corresponding to the rotational speed of the pulser ring 131 to the control device, and the control device receives the pulse signal. Based on this, the rotation speed of the pulser ring 131, that is, the rotation speed of the hanger roller 125 is calculated. The rotational speed of the hanger roller 125 corresponds one-to-one to the opening speed of the landing door 127. Therefore, if the rotational speed of the pulser ring 131 can be calculated, the opening speed of the landing door 127 can be calculated and specified. The rotational speed of the pulser ring 131, that is, the rotational speed of the hanger roller 125, is an example of a physical quantity that can specify the speed at which the hall door 127 opens. Although a case has been described in which the rotational speed detection device 160 includes the magnetic field detection sensor 132 including the pulser ring 131 and the Hall IC, the rotational speed detection device 160 may be configured with a resolver or the like.

Next, the configuration and operation of the door deceleration means 140a, 140b will be explained. As shown in FIG. 8, the elevator 101 includes first and second door deceleration means 140a and 140b fixed to the hanger plate 120 and facing each other in the height direction with the rail 150 interposed therebetween. FIG. 9 is a sectional view showing the structure of the first door deceleration means 140a. The first door deceleration means 140a has the same structure as the second door deceleration means 140b. Below, the structure and operation of the first door deceleration means 140a will be explained, and the explanation of the structure and operation of the second door deceleration means 140b will be omitted.

As shown in FIG. 9, the first door deceleration means 140a includes a case 141 and a plunger 142. The case 141 has a cylindrical outer circumferential surface 141a, and disc-shaped lid portions 141b, 141c on both sides in the axial direction.A central portion of the one-side lid portion 141b has a cylindrical outer circumferential surface 141a, and a lid portion 141c that extends through the one-side lid portion 141b. A through hole 141d extending in the axial direction is provided.

On the other hand, the plunger 142 includes a large-diameter cylindrical portion 142a having a cylindrical shape and a small-diameter cylindrical portion 142b having a cylindrical shape, and the outer diameter of the small-diameter cylindrical portion 142b is greater than the outer diameter of the large-diameter cylindrical portion 142a. is also smaller. The small diameter cylindrical portion 142b protrudes in the axial direction from the center of the end surface on one axial side of the large diameter cylindrical portion 142a. The large-diameter cylindrical portion 142a is arranged within the case 141 and constitutes an inner part of the case. On the other hand, the small diameter cylindrical portion 142b passes through the through hole 141d. An end of the small diameter cylindrical portion 142b on the side opposite to the large diameter cylindrical portion 142a is located on the outside of the case 141.

The first door deceleration means 140a further includes a coil spring 143 as a biasing member, a coil 145, and a stopper 146. The coil spring 143 is disposed inside the case 141, and one end in the axial direction contacts the inner end surface of the one side lid part 141b, while the other end in the axial direction contacts the small diameter of the large diameter cylindrical part 142a. It comes into contact with the end surface on the columnar part 142b side. From this, the coil spring 143 biases the large diameter cylindrical portion 142a toward the other side in the axial direction with respect to the one side lid portion 141b, and in turn biases the plunger 142 toward the other side in the axial direction.

The coil spring 143 is wound so as to surround a part of the small-diameter cylindrical portion 142b of the plunger 142, and is disposed within the case 141. The stopper 146 is connected to the end of the small diameter cylindrical portion 142b on the opposite side to the large diameter cylindrical portion 142a, and is located outside the case 141. Stopper 146 has a plate shape.

In the above configuration, when the control device determines that the opening speed of the hall door 127 is equal to or higher than the predetermined speed based on the signal from the rotational speed detection device 160, the control device causes current to flow through the coil 145 of the first door deceleration means 140a. Take control. Then, the current flowing through the coil 145 generates magnetic lines of force indicated by arrow D in the plunger 142 made of ferromagnetic material, and as a result, the plunger 142 contracts the coil spring 143 by electromagnetic force based on the generated lines of magnetic force. The stopper 146 moves in the direction indicated by arrow E away from the case 141.

FIG. 10(a) is a schematic diagram showing the state of the first and second door deceleration means 140a, 140b when no current is flowing through the coil 145, and FIG. It is a schematic diagram showing the state of the 1st and 2nd door deceleration means 140a, 140b when flowing.

As shown in FIGS. 10(a) and 10(b), when the current is not flowing through the coil 145, the stopper 146 of the first door decelerating means 140a is positioned at a distance from the rail 150, while the current When the current is flowing through the coil 145, the end surface 146a of the stopper 146 on the tip side comes into contact with the upper surface 150a of the rail 150. Further, in the second door deceleration means 140b, when no current is flowing through the coil 145, the stopper 146 is located at a distance from the rail 150, and when the current is flowing through the coil 145, the stopper 146 is positioned at a distance from the rail 150. The end surface 146a on the tip side comes into contact with the lower surface 150b of the rail 150. From this, only when the elevator 101 (see FIG. 8) is in non-automatic operation and the speed when the landing door 127 (see FIG. 8) is manually opened is a predetermined speed or higher. , the stopper 146 comes into contact with the rail 150, and the speed of the landing door 127 is reduced.

As described above, the elevator 101 includes a key detection unit (non-automatic operation detection means) 41 that detects that the car is not ascending or descending automatically during non-automatic operation, and a hall door 127 that is manually opened during non-automatic operation. A rotation speed detection device (opening degree detection means) 160 that detects a physical quantity (rotational speed of the hanger roller 125) that can specify the speed at which the hall door 127 opens when the hall door 127 opens; door deceleration means 140a, 140b are provided to reduce the speed at which the landing door 127 opens when the speed is within a required deceleration range indicating that the speed is equal to or higher than a predetermined value.

According to the present disclosure, when the speed at which the hall door 127 opens is equal to or higher than a predetermined value, the speed at which the hall door 127 opens is reduced. Therefore, since the landing door 127 can be prevented from being manually opened all at once, it is possible to prevent people from falling into the hoistway through the opening that appears after the landing door 127 is opened.

Further, the opening degree detection means may be a rotational speed detection device that detects the rotational speed of a hanger roller 125 that is rotatably supported by the hanger plate 120 and moves on a rail 150 installed in the landing area.

According to this configuration, since the opening degree detection means is a rotational speed detection device that detects the rotational speed of the hanger roller 125, the speed of the landing door 127 can be detected easily, inexpensively, and accurately using a resolver or a pulser ring.

Further, the door deceleration means 140a, 140b may include a stopper 146 that is positioned at a distance from the rail 150 when the physical quantity is not within a value within the required deceleration range, and the stopper 146 The landing door 127 may be decelerated by contacting the rail 150 when the value is within the range. Furthermore, door deceleration means 140a, 140b may be installed on the hanger plate 120.

According to this configuration, the stopper 146 of the door deceleration means 140a, 140b installed on the hanger plate 120 comes into contact with the rail 150 when the above-mentioned physical quantity has a value within the required deceleration range. The speed can be reliably reduced, and in turn, the landing door 127 can be reliably decelerated.

Further, the door deceleration means 140a, 140b apply a force in the axial direction to the case 141, a plunger 142 having a case internal portion disposed within the case 141, and a coil spring disposed within the case 141. (biasing member) 143 and a coil 145 wound around the plunger 142 and disposed within the case 141. Then, the stopper 146 is connected to one end of the plunger 142 and is located outside the case 141, and when a current flows through the coil 145, the stopper 146 moves in a direction away from the case 141 as the force received from the coil spring 143 increases. You may move to According to this configuration, deceleration of the landing door 127 can be realized easily and inexpensively.

In addition, in 2nd Embodiment, the case where the stopper 146 of two door deceleration means 140a, 140b contacts the rail 150 from the upper and lower sides of the rail 150, and decelerates the moving speed of the hall door 127 was demonstrated. However, the elevator may have only one door deceleration means, and the one door deceleration means may reduce the moving speed of the landing door by contacting the upper surface or the lower surface of the rail.

Moreover, the case where the rotational speed of the hanger roller 125 is taken as a physical quantity and the speed of the landing door 127 is specified based on the rotational speed has been described. However, the physical quantity may be the speed of the landing door itself, or may be configured such that the speed of the landing door is measured based on a Pitot tube or the Doppler effect. Furthermore, although a case has been described in which the stopper 146 is moved using electromagnetic force, the stopper may be moved forward and backward by an actuator including a motor and a ball screw.

FIG. 11 is a diagram corresponding to FIG. 8 of an elevator 201 according to a modification of the second embodiment. Further, FIG. 12(a) is a diagram corresponding to FIG. 10(a) in an elevator 201 of a modified example of the second embodiment, and FIG. 12(b) is a diagram of an elevator 201 of a modified example of the second embodiment. It is a figure corresponding to FIG.10(b). The modified example of the second embodiment differs from the second embodiment only in the arrangement position of the magnetic field detection sensor 132 and the structure of the door deceleration means 240.

In the second embodiment, a case has been described in which the stopper 146 comes into contact with the rail 150 to decelerate the hall door 127 when the physical quantity is within the deceleration required range. However, when the physical quantity is within the range requiring deceleration, the stoppers 246, 256 may contact the hanger roller 125 to decelerate the landing door 127.

Specifically, as shown in FIG. 11, the door deceleration means 240 is attached between a pair of hanger rollers 125 rotatably attached to the hanger plate 120. Further, as shown in FIG. 12(a), the door deceleration means 240 includes a cylindrical case 241, a coil spring 243 as a biasing member, a first stopper 246 connected to one end of the coil spring 243, and other parts of the coil spring 243. It includes a second stopper 256 connected to an end, a first coil 245 arranged to surround the first stopper 246, and a second coil 255 arranged to surround the second stopper 256. Inside the case 241, disk-shaped first and second partition walls 280 and 281 having a through hole in the center are provided at intervals in the axial direction.

One side of the coil spring 243 passes through a through hole (not shown) in the first partition wall 280, and the other side of the coil spring 243 passes through a through hole (not shown) in the second partition wall 281. Further, the end faces of each stopper 246, 256 on the coil spring 243 side are flat surfaces 246a, 256a, while the end faces of each stopper 246, 256 on the opposite side from the coil spring 243 side are arcuate surfaces 246b, 256b. ing. The arcuate surfaces 246b and 256b are formed by a portion of the cylindrical inner peripheral surface of the hanger roller 125 in the circumferential direction corresponding to the cylindrical outer peripheral surface 125a.

When no current flows through the first and second coils 245, 255, as shown in FIG. The stoppers 246, 256 are positioned at a distance from the hanger roller 125 so as to come into contact with the end surfaces 280a, 281a on the side of the stoppers 246, 256. On the other hand, when current is flowing through the first and second coils 245, 255, as shown in FIG. The arcuate surfaces 246b, 256b of the stoppers 246, 256 come into contact with the cylindrical outer peripheral surface 125a of the hanger roller 125. This contact reduces the rotational speed of the hanger roller 125, and as a result, the speed at which the landing door 127 is manually opened is reduced.

As described above, the door deceleration means 240 is located at a distance from the hanger roller 125 that moves on the rail 150 installed in the landing when the rotational speed of the hanger roller 125, which is a physical quantity, is not within the required deceleration range. It has stoppers 246 and 256. Furthermore, the stoppers 246 and 256 decelerate the landing door 127 by contacting the hanger roller 125 when the rotational speed of the hanger roller 125 is within a range requiring deceleration. Further, when the speed at which the landing door 127 opens is equal to or higher than a predetermined value, the rotational speed of the hanger roller 125 becomes a value within the required deceleration range. Therefore, according to this modification, the rotation speed of the hanger roller 125 can be reliably decelerated, and in turn, the landing door 127 can be reliably decelerated.

Note that the present disclosure is not limited to the first and second embodiments and their modifications, and various improvements and changes can be made within the scope of the claims of the present application and their equivalents. It is.

For example, in the embodiment and modification described above, the key detection unit 41 detects non-automatic driving. However, the non-automatic driving detection means may be detected by a device other than the key detection section. For details, when setting the elevator mode to maintenance mode in which control, including elevator car elevation control, is performed manually, a person can change the elevator mode to maintenance mode using the control unit inside the car or the maintenance computer connected to the connection port. A signal indicating that the mode is to be set is sent to a control device that controls the raising and lowering of the car. Moreover, such a control device is installed, for example, in a machine room located above the hoistway or on a pitch located below the hoistway.

Here, the maintenance computer is a portable computer. Maintenance work requires specialized knowledge regarding equipment inspection, maintenance, etc., and it is also preferable to keep a record of maintenance history. Therefore, maintenance workers use a portable or transportable computer such as a notebook personal computer to display procedures for maintenance, inspection, etc., or to store the results of maintenance, inspection, etc. in a memory as a maintenance history. Mentecon is such a computer.

In such a background, if the control device is used as a non-automatic driving detection means and the control device is configured to receive a signal from the opening degree detection means, the control device receives a signal from the floor landing sensor. Since it can be determined whether the car has landed on a floor where the landing door is being moved manually, it can be determined whether the landing door is moving at a speed higher than a predetermined level on a floor where the car has not landed. Therefore, in such a case, if the control device sends a signal to operate the door deceleration means, it is possible to prevent a person from falling into the hoistway.

Here, while the control device is installed at a stationary location with respect to the hoistway, when the control device receives a signal from the opening degree detection means or when the door deceleration means operates, The detection means and the door deceleration means move relative to the hoistway. Therefore, it is preferable that the control device receives a wireless signal from the opening degree detection means, and it is preferable that the control device wirelessly transmits a signal to the door deceleration means.

As described above, the non-automatic operation detection means may be a control device that controls the elevator car up and down, and the opening degree detection means may transmit a signal to the control device using wireless, and the control device may transmit a signal to the control device using wireless. The signal may be sent to the door deceleration means.

According to this modification, since the non-automatic operation detection means is a control device that performs control including elevator control of the car, there is no need to install a new non-automation operation detection means, and a person may fall into the hoistway. This can be easily and inexpensively prevented using existing control equipment.

Furthermore, the opening degree detecting means transmits a signal to its control device using radio, and the control device transmits a signal to the door deceleration means using radio. Therefore, in comparison with the case where the opening degree detection means transmits a signal to the control device using only a wire, or the control signal is transmitted from the control device to the door deceleration means using only a wire, Signals can be exchanged between the control device located at each stage and the opening degree detection means and door deceleration means moving relative to the hoistway with a simple structure at each stage.

Further, the technical idea of the present disclosure of decelerating the landing door under predetermined conditions is modified such that there are a plurality of landing doors and two or more landing doors move to opposite sides when performing the opening operation of the landing door. Applied to the configuration. However, the technical idea of the present disclosure of decelerating the landing door under predetermined conditions is applied to a configuration where there are multiple landing doors and all the landing doors move in the same direction when opening the landing door. You may.

Note that when the landing door is manually opened during non-automatic operation, the non-automatic operation detection means and the opening degree detection means are activated. Here, when a predetermined period of time has elapsed since the non-automatic operation detecting means detects that the non-automatic operation is being performed, the non-automatic operation detecting means controls the non-automatic operation detecting means, the opening degree detecting means, and the door deceleration means. By controlling the system to automatically return to the state before detecting that it is in automatic operation, the non-automatic operation detection means, opening degree detection means, and door deceleration means can be returned to the standby state with simple control. preferable. Furthermore, it goes without saying that it is preferable that the opening degree detection means and the door deceleration means do not operate while the car is being moved up and down in automatic operation, since operating costs can be reduced.

1,101,201 Elevator, 1a One side door, 1b Other side door, 2,57 Motor, 3 Door drive section, 4,120 Hanger plate, 5 Car door, 6,150 Rail, 7 Drive side pulley, 8 Idler pulley , 9 belt, 10a first gripping member, 10b second gripping member, 11 leg, 12 car sill, 13 engagement vane, 14a, 14b engagement roller, 15,125 hanger roller, 19 piston rod, 20 landing door, 20a One landing door, 21 adjustment screw, 25 interlock mechanism, 30 interlock body, 30a locking claw, 30b tapered surface, 31 rotating shaft, 32 landing side hanger, 35 locking member, 35a engaging recess, 35b tapered surface , 37 through hole, 38 landing, 39 bar member, 40 door deceleration mechanism, 41 key detection section, 42 oil damper, 45 hydraulic adjustment mechanism, 46 line, 47 rotating member, 47a disc section, 47b shaft section, 47c male thread, 50 acceleration sensor, 51 power supply circuit for sensor, 52 motor with rotation operation section, 53 power supply circuit for motor, 54 power supply, 55 control device, 55a control section, 55b storage section, 56 rotation transmission cable, 57a output shaft, 58 Rotation operation part, 59 Return spring, 61 Bearing, 63 Gap, 65 Inside of inner cylinder, 65a Front part of piston head, 65b Rear part of piston head, 67 First passage, 69 Second passage, 71 Check ball, 73 Transparent Hole, 75 Female thread, 77 Male thread, 79 Adjustment ball, 80 Main body of oil damper, 81 Third passage, 83 Form accumulator, 85 Door reduction means, 88 End component of inner cylinder, 89 Piston head, 91 Outer cylinder, 93 inner cylinder, 94 holding means, 110 door device upper part, 125a cylindrical outer circumferential surface of hanger roller, 127 landing door, 131 pulser ring, 132 magnetic field detection sensor, 140a, 140b, 240 door deceleration means, 141,241 case, 141a cylindrical outer periphery surface, 141b one side lid part, 141d through hole, 142 plunger, 142a large diameter cylindrical part, 142b small diameter cylindrical part, 143,243 coil spring, 145 coil, 146 stopper, 146a end face on the tip side of stopper, 150a upper surface of rail, 150b lower surface of rail, 160 rotational speed detection device, 245 first coil, 246 first stopper, 246a, 256a plane, 246b, 256b arcuate surface, 255 second coil, 256 second stopper, 280 first partition wall, 280a End face of the first partition wall on the first stopper side, 281 Second partition wall, 281a End face of the second partition wall on the second stopper side.

Claims (11)

non-automatic operation detection means for detecting that the car is in non-automatic operation, when the car is not being raised or lowered in automatic operation;
Opening degree detection means for detecting a physical quantity that can specify the speed at which the landing door opens when the landing door is opened manually during the non-automatic operation;
door deceleration means that reduces the speed at which the hall door opens when the physical quantity is a value within a required deceleration range indicating that the speed at which the hall door opens is equal to or higher than a predetermined value;
Equipped with an elevator. non-automatic operation detection means for detecting that the car is in non-automatic operation, when the car is not being raised or lowered in automatic operation;
Opening degree detection means for detecting a physical quantity that can specify the acceleration when the landing door opens when the landing door is opened manually during the non-automatic operation;
door deceleration means that reduces the speed at which the hall door opens when the physical quantity is a value within a required deceleration range indicating that the acceleration when the hall door opens is equal to or higher than a predetermined value;
Equipped with an elevator. The elevator according to claim 1, wherein the opening degree detection means is a rotational speed detection device that detects the rotational speed of a hanger roller that is rotatably supported by a hanger plate and that moves on a rail installed in a hall. . The elevator according to claim 2, wherein the opening degree detection means is an acceleration sensor that detects the acceleration of the hall door relative to the hall when the hall door opens. The door deceleration means is located at a distance from the rail when the physical quantity is not within the required deceleration range, and contacts the rail when the physical quantity is within the required deceleration range. The elevator according to claim 3 , further comprising a stopper that decelerates the landing door by doing so, and is installed on the hanger plate. The door deceleration means is located at a distance from a hanger roller that moves on a rail installed in the landing when the physical quantity is not within the deceleration required range, while the physical quantity is within the deceleration required range. The elevator according to any one of claims 1 to 4 , further comprising a stopper that decelerates the landing door by contacting the hanger roller when the value is within a range of 1 to 10, and is installed on the hanger plate. case and
a plunger having an inner case portion disposed within the case;
a biasing member that applies a force in the axial direction to the plunger and is disposed within the case;
a coil wound around the plunger and disposed within the case;
The stopper is connected to one end of the plunger and is located outside the case,
The elevator according to claim 5 or 6, wherein when a current flows through the coil, the stopper receives a larger force from the biasing member and moves away from the case. The door deceleration means includes a cylinder, oil filled in the cylinder, a rod member having a reciprocating section that moves forward and backward within the cylinder, and a hydraulic pressure of the oil that the retracting section receives when the retracting section enters the cylinder. It has a force varying part that varies the force based on the
When the physical quantity has a value within the required deceleration range, the force varying unit operates so as to increase the force received by the advance/retreat unit in comparison with when the physical quantity is not within the required deceleration range. 8. The elevator according to any one of items 1 to 7. Claims 1 to 8, wherein the opening degree detection means is supplied with electric power based on an operation of releasing an interlock mechanism for enabling the opening operation of the landing door regardless of the existing position of the car. Elevator listed in any one of the above. Any one of claims 1 to 9, wherein the non-automatic operation detection means detects an operation of releasing an interlock mechanism for enabling the opening operation of the landing door regardless of the existing position of the car. Elevator mentioned. The non-automatic operation detection means is a control device that controls the raising and lowering of the car,
The opening degree detection means transmits a signal to the control device using wireless,
The elevator according to any one of claims 1 to 9, wherein the control device transmits a signal to the door deceleration means using radio.

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