JP5222618B2 - Elevator door equipment - Google Patents

Description

  The present invention relates to an elevator door device that uses a pressure-sensitive sensor or the like to detect pinching of a flexible foreign matter such as a string by an elevator door.

Conventionally, as a door device of an elevator, a pressure-sensitive sensor for detecting contact with a person or an object is provided at the front end of the opening / closing door disposed at the entrance / exit of the elevator car, and the front end of the opening / closing door has a closing direction. When a person or an object is contacted during the closing operation, the contact is detected by the pressure sensor, and the opening / closing door during the closing operation is opened halfway (for example, see Patent Document 1). .
Japanese Utility Model Publication No. 5-37857

  In the above-described prior art, since a pressure-sensitive sensor that can detect even a slight pressure is directly bonded to the front end member of the door, there is a risk of erroneous detection due to vibration while the door is closed. In addition, since the pressure-sensitive sensor is bonded to the tip member, it is not easy to replace the sensor when the sensor fails.

  An object of the present invention is to provide an elevator door device that prevents erroneous detection and allows easy sensor replacement.

In this onset bright order to achieve the above object, in the elevator door apparatus having a door for opening and closing the entrance of the elevator car, a detection means such as a pressure sensor for detecting the pinching foreign object by the door, the detection with means being disposed sandwiched dividable cushioning member to the elevator door per column, the buffer member installed on the elevator door per pillar, door traveling direction and door during door closing operations It is possible to divide it into a door traveling direction side during the opening operation, and the buffer member on the door traveling direction side during the door opening operation is thinner than the buffer member on the door traveling direction side during the door closing operation .

With this configuration, the detection means is placed between the elevator door pillars or at least one door door portion sandwiched between separable buffer members, so that the sensor can be replaced without erroneous detection. Is also easy. In addition, the sensitivity of the pressure sensor can be improved.
Further, in this onset bright, the buffer member is installed in front Quito per pillar, so that a portion of the buffer member in the door travel direction side when the door-opening operation can be contacted with opposing the door It is stored inside the door-to-door pillar so that the remaining portion including the buffer member that is exposed to the outside and other than that is located on the door moving direction side during the door closing operation cannot be contacted with the facing door. It is characterized by that.

In thus constituted present onset bright, this configuration also collide the carriage or the like doorstop pillar user from erroneously, it is possible to prevent damage to the sensor and the buffer member.

Further, in this onset bright, a door for opening and closing the entrance of the elevator car, in the elevator door apparatus having a detection means of the pressure sensor for detecting the pinching foreign object by the door, said detection means can be divided The cushioning member installed in the door contact portion of the door sandwiched between the cushioning members is the door traveling direction side during the door closing operation and the door opening operation side and can be divided into a door advancing direction, the buffer member in the door traveling direction during the door closing operation is characterized by thin go Metropolitan than cushioning member on the door traveling direction during the door-opening operation.

With this configuration, the detection means is placed between the elevator door pillars or at least one door door portion sandwiched between separable buffer members, so that the sensor can be replaced without erroneous detection. Is also easy. In addition, the sensitivity of the pressure sensor can be improved.

Further, in this onset bright, the buffer member installed on doorstop portion of the door, so that the portion of the cushioning member in the door travel direction side when the door closing operation can be contacted with the opposite door exposed to the outside, that the remaining part comprising a cushioning member in the other door advancing direction during the door opening operation of the stored in the door interior to be impossible in contact with opposing the door Features.

  With this configuration, even if the user accidentally collides a cart or the like with the tip of the door, damage to the sensor or the buffer member can be prevented.

Further, in this onset bright, a metal frame provided on the doorstop pillar or the door, characterized in that a said buffer member to the metal frame.

  With this configuration, the buffer member and the sensor can be attached more stably.

Further, in this onset bright, the cushioning member and the opposite door or doorstop pillar during the door-closing operation, when the door without interposing foreign substance is fully closed, the second cushioning member without actuating said detecting means Is provided.

  With this configuration, unnecessary operations due to erroneous detection can be prevented.

Further, in this onset bright, the detecting means is characterized in that the detection unit is a height from the floor are installed in two or less of the lower third of the entrance height of the elevator of the detection means .

  With this configuration, the sensor can be installed economically.

  According to the present invention, the detection means such as the pressure-sensitive sensor is sandwiched between the separable buffer members and is installed in the door-holding pillar or the door-stop portion of at least one door. It is possible to achieve a remarkable effect that it is easy to replace and attach.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator door device according to the present invention will be described with reference to the drawings.

FIG. 1 is a front view of a single swing car door showing an embodiment of an elevator door device according to the present invention, FIG. 2 is a sectional view taken along the line A - A shown in FIG. 1, and FIG. 4 is a front view of a double car door showing another embodiment of an elevator door device, FIG. 5 is a sectional view taken along the line B - B shown in FIG. 4, FIG. 6 is a view corresponding to FIG. detailed sectional view of the cushioning member with a built-in pressure sensor in the invention, FIG 8 is an exploded view of the cushioning member with a built-in pressure sensor of the present invention, FIG. 9 2 corresponds diagram showing still another embodiment, FIG. 10 FIG. 4 is a view corresponding to FIG. 3 showing still another embodiment.

1 and 2 , the upper part of the car doors 1a and 1b is hung on the rail 3 of the car door opening and closing device 2 , and the lower part of the car doors 1a and 1b falls into a groove provided in the sill 4 , and the motor 5 rotates. Thus, the car door opening and closing device 2 is opened and closed along the grooves of the rail 3 and the sill 4 by an opening and closing mechanism (not shown). A buffer member 12 having a built-in pressure-sensitive sensor 11 is installed on the pillar 6 per car door, and a second buffer member having no built-in pressure-sensitive sensor 11 at the door-contact portion of the car door 1a opposite thereto. 13 is installed.

When the car door 1a is fully closed, both the buffer members 12 and 13 are in close contact with each other. When any foreign matter is caught between the car door 1a and the car door pillar 6 , the pressure sensor 11 increases the local pressure. To detect. The buffer member 12 incorporating the pressure-sensitive sensor 11 is housed in the car door post 6 except for a part of the cover portion 12a. For this reason, even if a large external force that is greater than the impact associated with the door closing operation is applied to the car door pillar 6, damage to the buffer member 12 and the pressure sensor 11 can be prevented. Moreover, the design property is improved by making the buffer member 12 as inconspicuous as possible. Also, by attaching the pressure sensor 11 to the car door post 6, there is no moving part that accompanies the opening and closing of the door, so that it is difficult to break down and there is no need to use a cable that is flexible, so it is possible to reduce costs. is there. Similarly, the second buffer member 13 that does not incorporate the pressure-sensitive sensor 11 attached to the car door 1a, except for a part, is stored inside the car door 1a, so that the second buffer member 13 is damaged due to a collision with a carriage or the like. Can be prevented, and the design is improved.

FIG. 3 is a view corresponding to the cross - section AA of FIG. 1 in the modification of the embodiment of the present invention. The metal frame 7 is fixed to the car door pillar 6. Therefore, having the same features as FIG. Further, the shock absorbing member 12 having the pressure sensor 11 built-in is stored in advance in the metal frame 7, and it is easy to be retrofitted to an elevator without the pressure sensor 11 by unitizing this. There is.

Next, FIG. 4, a description of another embodiment of the present invention by FIG. Components having the same functions as those in FIG. 4 and 5, the upper parts of the car doors 1a and 1b are hung on the rail 3 of the car door opening and closing device 2 , and the lower parts of the car doors 1a and 1b fall into a groove provided in the sill 4 , and the motor 5 By rotating, it is opened and closed along the rail 3 of the car door opening and closing device 2 and the groove of the sill 4 by an opening / closing mechanism (not shown). A shock-absorbing member 12 with a built-in pressure-sensitive sensor 11 is installed at one car door 1a, and a shock-absorbing member 13 without a built-in pressure-sensitive sensor 11 at the car door 1b. Is installed. When the car door is fully closed, both the buffer members 12 and 13 are in close contact with each other. When any foreign matter is caught between the car doors 1a and 1b, the pressure sensor 11 detects the local pressure increase. The buffer member 12 incorporating the pressure-sensitive sensor 11 is housed inside the door portion of the car door 1a except for a part of the cover portion 12a. For this reason, even if a large external force greater than the impact associated with the door closing operation is applied to the car door 1a, damage to the buffer member 12 and the pressure sensor 11 can be prevented. Moreover, the design property is improved by making the buffer member 12 as inconspicuous as possible.

6 is a cross - sectional view corresponding to the cross section BB of FIG. 4 in a modification of the other embodiment of the present invention. The buffer member 12 including the pressure sensor 11 is housed in a metal frame 7 except for a part of the cover portion 12a, and the metal frame 7 is fixed to the door portion of the car door 1a. For this reason, it has the same characteristic as FIG. Further, the shock absorbing member 12 having the pressure sensor 11 built-in is stored in advance in the metal frame 7, and it is easy to be retrofitted to an elevator without the pressure sensor 11 by unitizing this. There is.

  In another embodiment of the present invention, the pressure sensor 11 may be attached to either the car door 1a or 1b.

As shown in FIGS. 7 and 8, the buffer member 12 incorporating the pressure sensor 11 comes into contact with the buffer member 13 at the end of the opposite door 1b to protect the pressure sensor 11 and pinch foreign matter. The pressure sensor 11 can be divided into a cover part 12a that transmits pressure to the pressure sensor 11, a main body of the pressure sensor 11, and a base part 12b that supports the pressure sensor 11 and does not release pressure when a foreign object is sandwiched between them. The cover portion 12a of the buffer member 12 is thin and soft so as not to be easily damaged in order to transmit the pressure when the foreign object is sandwiched to the pressure-sensitive sensor 11. On the other hand, if the base portion 12b of the buffer member 12 is thin and soft, it will be deformed by the pressure when a foreign object is pinched, so that the pressure may not be transmitted well to the pressure sensor 11. Therefore, the base portion 12b of the buffer member 12 is thicker than the cover portion 12a so that the pressure when the foreign object is sandwiched is transmitted to the pressure-sensitive sensor 11 without being released.

  The cover portion 12a of the buffer member 12 has the same material and hardness as the second buffer member 13 that does not incorporate the pressure-sensitive sensor 11, and does not feel uncomfortable in design. If resin or metal is used for the base portion 12b of the buffer member 12, vibrations caused by the elevator car and the car doors 1a, 1b are easily transmitted to the pressure sensor 11, so the base portion 12b of the buffer member 12 does not include the pressure sensor 11. A material having the same hardness as that of the second buffer member 13 and having a higher hardness is used, and vibrations of the elevator car and the car doors 1a and 1b are hardly transmitted to the pressure-sensitive sensor 11. The cover portion 12a and the base portion 12b of the buffer member 12 are bonded with a double-sided tape 14 in consideration of manufacturability, but may be assembled so as to fit each other with an adhesive, baking at a high temperature, or unevenness. Or these methods may be combined.

  In the single-sliding door type elevator, the pressure sensor 11 may be installed on the car door, contrary to what has been described so far. That is, as shown in FIGS. 9 and 10, the buffer member 12 incorporating the pressure-sensitive sensor 11 is stored inside the car door door pillar 6 except for a part of the cover portion 12 a or inside the metal frame 7. The stored item may be attached to the pillar 6 per door of the car door. In this way, not only can the flexible string-like foreign object be caught, but also when the foreign object collides with the car door 1a.

  In the above-described embodiment, the buffer member 12 including the pressure sensor 11 is installed in either the car door 1a, 1b or the car door pillar 6, but the car door 1a, 1b or the car door 1a and the car It may be installed on both pillars 6 per door. That is, in the case of a single-sliding door type elevator, the buffer members 12 and 13 having the built-in pressure-sensitive sensor 11 may be installed in both the opposing car door 1a and the car door pillar 6; If present, the buffer members 12 and 13 having the pressure-sensitive sensor 11 built in may be installed on both opposing car doors 1a and 1b.

  Further, it is not always necessary to use the buffer member 12 including the pressure sensor 11 and the second buffer member 13 not including the pressure sensor 11 as a set, and the second buffer if there is no problem in safety and detection performance. The member 13 may not be used.

  Furthermore, if there is no problem in detection performance, it is not necessary to harden or thicken the base portion 12b of the buffer member 12 including the pressure-sensitive sensor 11. That is, the reason why the base portion 12b of the buffer member 12 incorporating the pressure sensor 11 is hardened is to facilitate detection by the pressure sensor 11 when a foreign object is sandwiched, and the pressure sensor 11 having high sensitivity is used. For example, it is not necessary to harden the base portion 12b of the buffer member 12 including the pressure-sensitive sensor 11. In this case, the manufacturing efficiency is improved by making the cover portion 12a and the base portion 12b of the buffer member 12 incorporating the pressure sensor 11 the same material and hardness. Conversely, the base portion 12b of the buffer member 12 may be made of resin or metal if there is no problem with the detection performance and life of the pressure sensor 11.

  Here, in the pressure-sensitive sensor 11 used in the present invention, two thin electrodes are held with a slight gap, and the two thin electrodes come into contact with each other by pressing when a foreign object is sandwiched between them. It is a structure that detects pressure. Therefore, if the pressure is detected by contact of the electrodes by pressing, the same effect can be obtained by using what is called a film switch, a tape switch, a cable switch or the like.

  In the present invention, it is recommended that the thickness of the pressure-sensitive sensor 11 be 1 mm or less. However, since the push-in amount for detection by the pressure-sensitive sensor 11 can be made within 1 mm by this, it is possible to detect a thin foreign object. Because it is advantageous. That is, in a pressure-sensitive sensor that requires a large amount of push-in, no matter how strong the car door is closed, there is a risk that the push-in amount will not be detected when a small foreign object is caught. On the contrary, if the closing force of the car door is increased, there is a possibility of erroneous detection even when no foreign object is sandwiched. Therefore, it is not necessary to limit the thickness of the pressure-sensitive sensor 11 if the detection object is larger than the flexible string-like foreign object that is the detection object of the present invention. Of course, if the thickness of the pressure-sensitive sensor 11 is 1 mm or less, it is possible to detect even a larger one than the flexible string-like foreign object to be detected in the present invention.

Moreover, although all the embodiments of the present invention in a single-sliding door type elevator have two doors, they may be one or three or more doors. Although the embodiment of the present invention in the double-sliding door type elevator has two doors, it is needless to say that there may be more than two doors such as four doors.

Then, in the present invention has been installed in the second range of the lower third of the elevator doorway height pressure sensitive sensor 11, which may be due to the present invention is intended for detection of a flexible string-like foreign object . In other words, it is only necessary to be able to detect the code of household electrical appliances and the lead of pets, so it is not necessary to have a detection range up to the upper part of the elevator entrance / exit.Of course, the mounting method of the pressure sensitive sensor according to the present invention A pressure-sensitive sensor can also be installed over.

  Moreover, in the said embodiment, although the car door was demonstrated, it is applicable also to a landing door.

1a, 1b Car door 6 Car door contact part 7 Frame 11 Pressure sensor 12 Buffer member 13 Second buffer member 14 Double-sided tape

It is a one-sided car door front view which shows one Embodiment of the door apparatus of the elevator of this invention. FIG. 2 is a cross - sectional view taken along the line AA shown in FIG. FIG. 3 is a view corresponding to FIG. 2 showing a modified embodiment. It is a double-open car door front view which shows other embodiment of the door apparatus of an elevator. FIG. 5 is a cross - sectional view taken along a line B-B illustrated in FIG. 4. FIG. 6 is a view corresponding to FIG. 5 showing a modified embodiment. It is detailed sectional drawing of the buffer member which incorporated the pressure sensitive sensor in this invention. It is an exploded view of the buffer member incorporating the pressure sensor in this invention. FIG. 3 is a view corresponding to FIG. 2 showing still another embodiment. FIG. 6 is a view corresponding to FIG. 3 showing still another embodiment.

Claims (7)

In an elevator door device including a door that opens and closes an entrance / exit of an elevator car, and a detection means such as a pressure-sensitive sensor for detecting foreign object pinching by the door,
Wherein with detecting means is disposed sandwiched dividable cushioning member to the elevator door per column, the buffer member installed on the elevator door per pillar, door traveling direction during door closing operation The buffer member on the door traveling direction side during the door opening operation is thinner than the buffer member on the door traveling direction side during the door closing operation. And elevator door device. Said buffer member is installed in front Quito per pillar, the portion of the cushioning member is exposed to the outside so as to be contactable with opposite said door in the door-opening door advancing direction during operation, the other 2. The inside of the door-to-door pillar is stored so that the remaining portion including the buffer member on the door traveling direction side during the door closing operation cannot be contacted with the facing door. The elevator door device described. In an elevator door device including a door that opens and closes an entrance / exit of an elevator car, and a detection means such as a pressure-sensitive sensor for detecting foreign object pinching by the door,
The detection means is sandwiched between separable buffer members and is installed at the door contact portion of the door. The buffer member installed at the door contact portion of the door is on the door traveling direction side during the door closing operation. and a dividable into a door traveling direction during the door-opening operation, the buffer member in a door traveling direction during the door closing operation is a thin go Metropolitan than cushioning member on the door traveling direction during the door-opening operation Elevator door device featuring. The buffer member installed on doorstop portion of the door, the door portion of the cushioning member in the door travel direction side at the time of closing operation is exposed to the outside so as to be contactable with the opposite door, the other according to claim 3, wherein the remaining portion comprising a cushioning member in the door travel direction side when the door opening operation is stored in the door interior to be impossible in contact with opposing the door Elevator door device. The elevator door device according to claim 1 or 3 , wherein a metal frame is provided on the door column or the door, and the buffer member is provided on the metal frame . Wherein the cushioning members that faces the door or doorstop pillar during the door-closing operation, when the door without interposing foreign substance is fully closed, and characterized in that a second slow衝部material without actuating said detecting means The elevator door device according to claim 1 or 3 . 4. The detection unit according to claim 1 or 3 , wherein the detection unit of the detection unit is installed such that the height from the floor surface is less than two-thirds of the lower part of the height of the entrance of the elevator. Elevator door equipment.

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