JP3032400U - Elevator door equipment - Google Patents

Abstract

(57) Abstract: A door is provided with a shield that can be raised and lowered to prevent air from flowing between an elevator door and a sill. When the shield comes into contact with the sill, and There is a possibility that a dragging sound may be generated when the user leaves the vehicle. SOLUTION: The horizontal relative speed between the shield 22 and the sill 2 is set by setting the horizontal moving direction and the moving speed of the shield 22 to be substantially the same in the direction opposite to the traveling direction of the door 4. Make it smaller to prevent dragging noise.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to an elevator door device that prevents noise generation and noise intrusion caused by air flowing through a gap between an elevator door and a sill (sill).

[0002]

[Prior art]

 In general, as the speed of elevators increases, the noise caused by the traveling of the car increases, and this noise enters the car through the gap between the door and the sill, and when the air passes through the gap, new noise is generated. There is a problem that noise is generated and passengers are uncomfortable. In order to solve this problem, various devices for closing the door and the sill have been conventionally considered.

An example of the prior art of this type of device will be described with reference to FIGS. 7 and 8 which is a sectional view taken along the line AA of FIG. In the figure, 1 is a rail mounted on a fixed part of a car (not shown), 2 is a sill mounted on the floor of a car, 3 is a guide groove recessed in the longitudinal direction of the sill 2, and 4 is a guide groove. The door is a door, the upper end of which is guided by the hanger roller 5 to the rail 1, and the lower end of which is provided with a guide shoe 6 which is fitted in the proposed groove 3.

Reference numeral 7 denotes a pair of L-shaped links arranged near the lower portion of the door 4, and a central bent portion thereof is pivotally attached to the door 4. 8 is a support body pivotally attached to both links 7, 7 is a shield body made of an elastic material such as rubber fixed to the lower surface of the support body 8 and 10 is a rod pivotally attached to both links 7, 7. Yes, it slightly projects at the front end of the door 4 in the door closing direction. Reference numeral 11 is provided between the door 4 and the link 7, and is a compression spring for urging the link 7 in the counterclockwise direction in FIG. 7, and 12 is a stopper.

In the above conventional door device, the support body 8 is held in the raised position by the spring 11 except when the door 4 is fully closed, and the space between the shield body 9 and the sill 2 is shown in FIGS. A space is formed like this. When the door 4 is fully closed, the tip of the rod 10 comes into contact with the facing portion (not shown) and the rod 10 moves in the door opening direction. This facing part is the doorway frame when the door type is single-opening, and the facing door when the center type is double-opening. As a result, the link 7 rotates in the clockwise direction in FIG. 7 against the spring 11 to bring the shield 9 into close contact with the sill 2. When the door 4 is opened, the reverse operation is performed. As a result, it is possible to prevent the air from flowing through the gap between the door 4 and the sill 2, and prevent the generation of noise and the intrusion of noise into the car due to the air flowing through the gap.

[0006]

[Problems to be solved by the device]

 In the above-mentioned conventional device, a drag sound may be generated when the shield 9 comes into contact with the sill 2 and when the shield 9 separates from the sill 2. This is because the shield 9 moves in the same direction as the moving direction of the door 4. For example, when the door 4 is closed, the link 7 rotates clockwise, so that the shield 9 moves diagonally downward toward the door closing direction. Therefore, the relative speed in the horizontal direction between the shield 9 and the sill 2 is the speed of the shield 9 plus the speed of the door 4, so that dragging noise is likely to occur. The same applies when the door 4 is opened.

[0007]

[Means for Solving the Problems]

 The present invention reduces the horizontal relative speed between the shield and the sill by making the direction of movement of the shield opposite to the direction of travel of the door, and prevents the generation of dragging noise.

[0008]

[Embodiment of device]

 The present invention reverses the direction of movement of the shield to the direction of travel of the door, and makes the horizontal movement speed of the shield near the contact with the sill and away from the sill almost equal to the movement speed of the door. By doing so, the relative speed in the horizontal direction between the shield and the sill is reduced, and the generation of dragging noise is prevented.

Further, according to the embodiment of the present invention, in addition to the above-mentioned configuration, the shield has a structure having a portion in contact with the sill and a portion in contact with the door, thereby preventing air from flowing between the door and the sill. The effect is further improved. Further, as another embodiment of the present invention, by making the shield body hollow, the adhesion between the shield body and the sill is improved.

[0010]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. 1 is a view corresponding to FIG. 7, and FIG. 2 is a sectional view taken along line BB of FIG. In the figure, 20 is a pair of links whose middle part is pivotally attached to the door 4, and 21 is a support body pivotally attached to both links 20, 20. The shield is made of an elastic material such as rubber and has a substantially T-shaped cross section. A body 22 is attached. Reference numeral 23 is a rod pivotally attached to both links 20, 20. 24 is provided between the door 4 and the link 20, and is a compression spring for urging the link 20 in the clockwise direction in FIG. 1, and 25 is a stopper. Reference numeral 26 denotes an engagement piece fixed to the door 4, and when the shield 22 descends, it contacts one side 22a of the shield 22 and closes the gap between the door 4 and the shield 22.

Reference numeral 30 denotes a link having an intermediate portion pivotally attached to the upper portion of the door 4, 31 denotes a pair of rollers pivotally attached to the door 4, 32 has an upper end fixed to the lower end of the link 30, and a space between the pair of rollers 31. A rope attached to the rod 23 at its lower end. 33 is a compression spring provided between the door 4 and the link 30, 34 is a stopper fixed to the door 4, and the spring 33 and the stopper 34 keep the link 30 vertical. Reference numeral 35 denotes a stopper fixed to the car, which engages with the link 30 when the door 4 is at the fully closed position and rotates the link 30 clockwise against the spring 33 as shown by the solid line in FIG. It is what makes me.

The operation of this embodiment will be described. When the door 4 is fully closed, the link 30 engages with the stopper 35 and rotates clockwise by a predetermined angle as shown by the solid line in FIG. Is in a raised state. Therefore, the rod 23 is pulled up, the link 20 rotates counterclockwise, and the shield 22 is in close contact with the sill 2. Moreover, one side 22 a of the shield 22 is in close contact with the engaging piece 26.

When the door 4 is opened, as the door 4 moves in the opening direction, the link 30 rotates in the counterclockwise direction and becomes upright as shown by the chain double-dashed line. Therefore, the rope 32 descends, the link 20 rotates clockwise, and the shield 22 rises. At this time, the shield 22 rises diagonally in the door closing direction, as indicated by the chain double-dashed line. Therefore, by appropriately setting the fixed position of the stopper 35, the length of the link 30, etc., the horizontal moving speed of the shield 22 in the vicinity where the shield 22 separates from the sill 2 becomes equal to the moving speed of the door 4. Or they can be approximately equal. When the door 4 is closed, the reverse operation is performed. Therefore, similarly to the above, the horizontal movement speed of the shield 22 in the vicinity of the contact of the shield 22 with the sill 2 is set to the movement speed of the door 4. Can be approximately equal to.

As described above, according to the present embodiment, the horizontal relative speed between the shield and the sill can be reduced, so that the generation of dragging noise can be prevented. In this embodiment, the shield is raised by lowering the rope, but other configurations may be used. In short, it is only necessary to make the moving direction of the shield opposite to the direction of travel of the door. By making the speed substantially equal to the moving speed, the effect of preventing the dragging noise from being generated can be further improved.

Next, another embodiment of the present invention will be described with reference to FIG. In this embodiment, since the shield 22 is raised by pulling up the rope, the link 30 is configured to stand upright when the door 4 is fully closed. When the door 4 is opened, the link 30 is indicated by a chain double-dashed line. As shown, it rotates counterclockwise to pull up the rope 32. In the figure, 40 is a link whose one end is pivotally attached to the door 4 and the other end to the support 21, and the lower end of the rope 32 is attached to the support 21. Further, the same reference numerals as those in FIG. 1 indicate the same components.

The operation of the present embodiment will be described. When the door 4 is fully closed, the link 30 is engaged with the stopper 35 and is in the upright state as shown by the solid line in FIG. The shield 22 is in close contact with the sill 2. When the door 4 is opened, the link 30 is rotated clockwise as the door 4 moves in the opening direction, and the rope 32 is pulled up while being inclined as shown by the chain double-dashed line. As a result, the shield 22 is pulled up obliquely in the door closing direction as shown by the chain double-dashed line. When the door 4 is closed, the reverse operation is performed.

As described above, also in this embodiment, by appropriately setting the fixing position of the stopper 35, the length of the link 30 and the like, the dragging noise is generated as in the case of the embodiment of FIGS. Can be prevented.

FIG. 4 is also a view showing another embodiment of the present invention, in which the driving force of the car door driving device is utilized to raise and lower the shield. In the figure, 50 is a pulley which is a part of a door driving device, 51 is an arm whose center is pivotally attached to a car by a shaft 51a, and one end of which is connected to a pulley 50 by an arm 52. Reference numeral 53 is a link which is pivotally attached to the door 4 by a shaft 53a, the middle portion of which is connected to the arm 51 and the other end of which is connected to the link 54. 55 is a link whose one end is pivotally attached to the door 4 and the other end is pivotally attached to the support 21, and 56 is a link whose intermediate part is pivotally attached to the door 4, one end to the link 54 and the other end to the support 21. .

When the door 4 is fully closed, the shield 22 is in close contact with the sill 2 as shown by the solid line in FIG. When the door 4 is opened, the pulley 50 rotates counterclockwise, and the arm 51 rotates counterclockwise about the shaft 51a. As a result, the link 53 rotates clockwise about the shaft 53a, and the link 56 rotates clockwise via the link 54, so that the support 21 and the shield 22 are separated from each other as shown by the two-dot chain line. Raise in the closing direction. When the door 4 is closed, the reverse operation is performed.

As described above, also in this embodiment, by appropriately setting the length of each link and the like, it is possible to prevent the generation of dragging noise as in the case of the embodiments of FIGS. You can

Next, another embodiment of the shield will be described with reference to the drawings. Both are cross-sectional views of the shield portion, and the same reference numerals as in FIG. 2 indicate the same parts. In FIG. 5, the shield 60 has a hollow shape having a space inside. In FIG. 6, the shield 61 is divided into a portion 61a contacting the sill 2 and a portion 61b contacting the engaging piece 26 of the door 4, and the portion 61a contacting the sill 2 is hollow. It has a shape. The shape of the shield is not limited to the above, and any shape can be used as long as it can adhere to the sill. Further, if the structure can be closely attached to the door, the effect of preventing air circulation is further increased.

Further, in each of the above-described embodiments, the car door has been described, but the same can be applied to the case of the hall door.

[0023]

[Effect of device]

 As described above, according to the present invention, since the relative speed in the horizontal direction between the shield and the sill can be reduced to zero or small, the dragging noise between the shield and the sill when the door is opened and closed is reduced. Occurrence can be prevented.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 is a view showing another embodiment of the present invention.

FIG. 4 is a view showing another embodiment of the present invention.

FIG. 5 is a view showing another embodiment of the shield according to the present invention.

FIG. 6 is a view showing another embodiment of the shield according to the present invention.

FIG. 7 is a view showing a prior art of a device for closing a space between a door and a sill.

8 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

2 Sill 4 Door 7, 20, 30, 40, 53, 54, 55, 56 Link 8, 21 Support 9, 22, 60, 61 Shield 26 Engagement piece 32 Rope 50 Door drive pulley 51, 52 Arm

Claims (6)

[Scope of utility model registration request] 1. A door having a sill forming a lower part of an entrance and an exit, and a door for opening and closing the entrance along the sill, and having a structure for ascending and descending in an oblique direction. When the door is closed, the door is lowered. In a door provided with a shield that closes a gap between a door and a sill, an elevator door device, wherein a horizontal moving direction of the shield is opposite to a traveling direction of the door. 2. The elevator according to claim 1, wherein a horizontal moving speed of the shield when the shield comes into contact with the sill and separates from the sill is substantially equal to a moving speed of the door. Door device. 3. A link for raising and lowering the shield by being pivotally attached to the door and rotating, a device for displacing the door when the door is in the vicinity of a fully closed position, and a displacement of the device for rotating the link. An elevator door apparatus according to claim 1 or 2, further comprising: a moving unit. 4. A link which pivotally attaches to the door to raise and lower the shield, a drive device for driving the door, and a means for rotating the link by displacement by the drive device. The door device for an elevator according to claim 1, wherein the door device is an elevator. 5. The elevator door device according to claim 1, wherein the shield has a hollow shape. 6. The elevator door device according to claim 1, wherein the shield has a portion that comes into contact with the sill and a portion that comes into contact with the door when descending.