JP6721132B1 - Elevator door equipment - Google Patents

Abstract

An elevator door device according to the present invention includes a door that opens and closes an entrance, a rail that is located above the entrance, and a sill that is formed below the entrance and has a guide groove. A guide, an upper stopper, a lower guide, and a lower stopper, the upper guide has a groove, and the upper portion of the rail is inserted into the groove, and the upper stopper faces a lower surface of the rail, The lower guide is inserted into the guide groove of the sill, the lower stopper extends in the back direction of the door and toward the upper surface of the sill to face the upper surface of the sill, and the door is pushed from the front side. When the lower stopper is pressed against the upper surface of the sill against the back side of the door, the door is pushed upward by the reaction force generated at the contact point between the lower stopper and the upper surface of the sill, and the upper stopper is moved toward the rail. Is pressed against the lower surface of the door, and the door is stretched between the upper surface of the sill and the lower surface of the rail to suppress the warp of the door.

Description

The present invention relates to an elevator door device.

In a conventional elevator door device, a door panel that is horizontally moved to open and close the doorway, a guide body attached to the lower end portion of the door panel, and a threshold groove into which the guide body is inserted are provided on the upper surface, and the floor part of the doorway. The sill installed in the sill is provided with an engaging groove on the side wall in the sill groove, and the lower end portion of the door panel is engaged with the engaging groove to restrict upward movement of the door panel. The hanging metal fitting is attached, and the hanging metal fitting has an attaching portion which is attached to the door panel and is inserted into the threshold groove, and an engaging portion which horizontally projects from the attaching portion and is inserted into the engaging groove. Therefore, even if an excessive force is applied to the door panel due to mischief or the like, the upward movement of the door panel is physically restricted, and therefore the door panel can be prevented from coming off due to an external force with a simple structure. ..

JP, 2010-241556, A

However, in the conventional elevator door device, it is necessary to provide an engaging groove on the side wall in the sill groove, and the sill generally used in the elevator door device is not provided with the engaging groove, so it is used. I couldn't.

Further, when applying the conventional elevator door device technology to an existing door device, it was necessary to replace the sill fixed to the floor of the cab or the floor of the hall.

The present invention has been made to solve the above problems.

An elevator door device according to the present invention is a door that opens and closes an entrance and exit in the width direction of the entrance and exit, a rail that is located above the entrance and extends in the width direction of the entrance and exit, and is located below the entrance and exit. A sill formed with a guide groove extending in the width direction of the doorway, the door having an upper guide and an upper stopper provided at an upper portion, and a lower guide and a lower stopper provided at a lower portion, and the upper guide. Has a groove portion, the upper portion of the rail is inserted into the groove portion to guide the movement of the doorway in the width direction, and the movement of the doorway in the depth direction is restricted. Is located at a position opposite to the lower surface of the rail, and its upward movement is restricted by the lower surface of the rail, and the lower guide is inserted into the guide groove of the sill and guided in the widthwise movement of the doorway. In addition, the movement of the doorway in the depth direction is restricted, the lower stopper extends in the back direction of the door and toward the upper surface of the sill, and faces the upper surface of the sill, and the downward movement of the sill is performed. When the door is restricted by the upper surface and the door is pushed from the front side and warps to the back side and the lower stopper is pressed against the upper surface of the sill, the door is moved by the reaction force generated at the contact point between the lower stopper and the upper surface of the sill. When pushed upward, the upper stopper is pressed against the lower surface of the rail, the door is stretched between the upper surface of the sill and the lower surface of the rail, and the warp of the door is suppressed.

The door device for an elevator according to the present invention can suppress the warp of the door when the door is pushed from the front side and prevent the door from coming off the sill and the rail.

1 is a front view of an elevator door device according to a first embodiment of the present invention. It is a longitudinal cross-sectional view of the door apparatus of the elevator seen from the direction of the arrow shown by AA in FIG. (A) shows a state where the landing door 10 is not warped. (B) shows the state where the hall door 10 is warped. FIG. 3 is a rear view of the elevator door device viewed from the direction of the arrow indicated by B in FIG. 2. FIG. 4 is a vertical cross-sectional view of the elevator door device viewed from the direction of the arrow indicated by CC in FIG. 3. (A) shows a state where the landing door 10 is not warped. (B) shows the state where the hall door 10 is warped. It is a longitudinal cross-sectional view of the door apparatus of the elevator seen from the direction of the arrow shown by DD in FIG. (A) shows a state where the landing door 10 is not warped. (B) shows the state where the hall door 10 is warped. FIG. 8 is a transverse cross-sectional view showing a first modified example of the elevator door device as viewed from the direction of the arrow indicated by CC in FIG. 3. The state where the landing door 10 is not warped is shown.

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

Embodiment 1.
1 is a front view of an elevator door device according to a first embodiment of the present invention. FIG. 2 is a vertical cross-sectional view of the elevator door device viewed from the direction of the arrow indicated by AA in FIG. FIG. 2A shows a state where the landing door 10 is not warped. FIG. 2B shows a state where the landing door 10 is warped. FIG. 3 is a rear view of the door device of the elevator viewed from the direction of the arrow indicated by B in FIG. FIG. 4 is a vertical cross-sectional view of the elevator door device viewed from the direction of the arrow indicated by CC in FIG. FIG. 4A shows a state where the hall door 10 is not warped. FIG. 4B shows a state where the hall door 10 is warped. FIG. 5 is a vertical cross-sectional view of the elevator door device viewed from the direction of the arrow indicated by D-D in FIG. 3. FIG. 5A shows a state where the landing door 10 is not warped. FIG. 5B shows a state where the hall door 10 is warped.

1 to 5, 1 is a hoistway, 2 is a landing, 3 is a building wall, 4 is a finishing wall, 5 is a building floor, and 6 is a landing doorway (doorway) , 7 are three-sided landing frames, 8 is a landing sill (sill), 9 is a landing door support, and 10 is a landing door (door).

The frame wall 3 partitions the hoistway 1 and the hall 2. The body wall 3 has an opening 3a formed therein.

The finish wall 4 is provided closer to the hall 2 than the body wall 3. The finishing wall 4 is provided around the three-way frame 7 of the hall.

The landing doorway 6 is provided in the opening 3a of the body wall 3. The hall entrance/exit 6 connects the hoistway 1 and the hall 2.

The hall three-way frame 7 forms the hall entrance/exit 6. The landing three-way frame 7 has a pair of vertical frames 11, an upper frame 12, and a fixture 13.

The pair of vertical frames 11 are arranged on the left side and the right side of the hall entrance 6 to form the width of the hall entrance 6. The pair of vertical frames 11 are fixed to the body wall 3 by fixing fittings 13.

The upper frame 12 is arranged above the landing doorway 6 and connects the upper portions of the pair of vertical frames 11 to form the height of the landing doorway 6.

The hall threshold 8 is located below the hall entrance 6. The landing threshold 8 is attached to the building floor 5. The landing sill 8 is formed with a guide groove 8a extending in the width direction of the landing doorway 6. The hall threshold 8 guides the hall door 10 so that the hall door 10 moves in the width direction of the hall entrance 6.

The landing door support 9 is provided above the landing doorway 6. The landing door support 9 includes a hanger case 14, a door rail 15 (rail), a first fixing metal fitting 16, and a second fixing metal fitting 17.

The hanger case 14 is fixed to the skeleton wall 3 by a first fixing member 16. The hanger case 14 is fixed to the landing frame 3 by a second fixing member 17.

The door rail 15 is attached to the hanger case 14. The door rail 15 is located above the hall entrance/exit 6. The door rail 15 extends in the width direction of the hall entrance/exit 6. The door rail 15 guides the hall door 10 so that the hall door 10 moves in the width direction of the hall entrance/exit 6.

The landing door 10 has a door body 18, a hanger plate 19, a hanger roller 20 (upper guide), an upper stopper 21, a door sash 22 (lower guide), and a lower stopper 23.

The door body 18 has a panel portion 18a and a door shoe attachment portion 18b.

The panel portion 18a is located closer to the hoistway 1 than the landing frame 3 is. The panel portion 18a faces side surfaces of the vertical frame 11 and the upper frame 12 on the hoistway 1 side. The panel portion 18a opens and closes the hall entrance 6 in the width direction of the hall entrance 6. The panel portion 18 a is located above the hall threshold 8. The panel portion 18a is located below the door rail 15.

The door sash attachment portion 18b is attached to the lower portion of the panel portion 18a. The door sash mounting portion 18b is mounted on the hoistway 1 side of the panel portion 18a. The door sash mounting portion 18b is located above the hall sill 8. The door sash mounting portion 18b faces the upper surface of the hall sill 8.

The hanger plate 19 is located above the landing door 10. The hanger plate 19 extends above the door rail 15 from an upper portion of the door body 18. The hanger plate 19 faces the side surface of the door rail 15 on the hoistway 1 side.

The bolt 24 is passed through a hole provided in the panel portion 18 a of the door body 18 and a hole provided in the hanger plate 19. The nut 25 is welded to the hanger plate. The bolt 24 and the nut 25 fasten the panel portion 18 a of the door body 18 and the hanger plate 19.

The hanger roller 20 is rotatably fixed to the hanger plate 19. The hanger roller 20 has a roller 26 and a shaft 27.

The roller 26 is located on the hall 2 side of the hanger plate 19. The roller 26 is rotatably fitted on the shaft 27. The roller 26 has a groove portion 26a and a flange portion 26b. The upper portion of the door rail 15 is inserted into the groove 26a. The flange portion 26b forms a side surface of the roller 26 on the hoistway 1 side and a side surface on the hall 2 side. The flange portion 26b has the maximum diameter of the roller 26. The flange portion 26b faces the side surface of the door rail 15 on the hoistway 1 side and the side surface of the hall 2 side. The roller 26 rolls along the upper portion of the door rail 15. The roller 26 is guided by the upper portion of the door rail 15 in the widthwise movement of the hall entrance/exit 6. The roller 26 limits the movement of the hall entrance/exit 6 in the depth direction by the side surface of the door rail 15 on the hoistway 1 side and the side surface on the hall 2 side.

The shaft 27 is located above the door rail 15. The shaft 27 faces the depth direction of the hall entrance/exit 6. The shaft 27 is passed through a hole provided in the hanger plate 19. The shaft 27 is caulked and fixed to the hanger plate 19.

The upper stopper 21 is rotatably fixed to the hanger plate 19. The upper stopper 21 has a roller 28 and a shaft 29.

The roller 28 is located on the hall 2 side of the hanger plate 19. The roller 28 is rotatably fitted on the shaft 29. The roller 28 is located below the door rail 15. The roller 28 faces the lower surface of the door rail 15. The roller 28 is restricted from moving upward by the lower surface of the door rail 15.

The shaft 29 is located below the door rail 15. The axis 29 faces the depth direction of the hall entrance/exit 6. The shaft 29 is passed through a hole provided in the hanger plate 19. The shaft 29 has a thread formed on the end portion on the hoistway 1 side. The shaft 29 is fixed to the hanger plate 19 with a nut 30.

The door sash 22 is located below the landing door 10. The door sash 22 extends downward from the lower portion of the door body 18. The door sash 22 is attached to the door sash mounting portion 18b of the door body 18. The door sash 22 is inserted in the guide groove 8 a of the hall threshold 8. The door sash 22 slides along the guide groove 8a of the hall sill 8. The door sash 22 is guided by the guide groove 8 a of the hall sill 8 in the widthwise movement of the hall entrance/exit 6. The door sash 22 restricts the movement of the hall entrance/exit 6 in the depth direction by the side surface on the hoistway 1 side and the side surface on the hall 2 side of the guide groove 8a of the hall sill 8.

The lower stopper 23 is located below the landing door 10. The lower stopper 23 is attached to the door shoe attachment portion 18b of the door body 18. The lower stopper 23 is formed by bending one steel plate. The lower stopper 23 has a mounting portion 23a and a pressing portion 23b. The attachment portion 23a and the pressing portion 23b have an L shape. The attachment portion 23 a is attached to the door body 18 and extends toward the upper surface of the sill 8. The pressing portion 23b is bent from the mounting portion 23a and extends to the hoistway 1 side which is the back direction of the hall 10. That is, the lower stopper 23 extends in the back direction of the hall door 10 and toward the upper surface of the hall sill 8. The lower stopper 23 faces the upper surface of the hall threshold 8. The lower stopper 23 is restricted from moving downward by the upper surface of the landing sill 8.

The bolt 31 is passed through a hole provided in the lower stopper 23, a hole provided in the door sash 22, and a hole provided in the door sash mounting portion 18b of the door body 18. The nut 32 is welded to the door shoe attachment portion 18b of the door body 18. The bolt 31 and the nut 32 tighten the lower stopper 23, the door sash 22, and the door sash mounting portion 18b of the door body 18.

Next, the operation of the elevator door device according to the first embodiment of the present invention will be described.

When the pressing force P acts from the hall 2 side of the hall door 10 to the hoistway 1 side, the door shoe 22 is pressed against the side surface of the guide groove 8a of the hall sill 8 on the hoistway 1 side to generate a reaction force Rh1, and at the same time, the hanger roller. The flange portion 26b of the roller 26 of 20 is pressed against the side surface of the door rail 15 on the side of the hall 2 to generate a reaction force Rh2.

Here, the relationship between the pressing force P, the reaction force Rh1, and the reaction force Rh2 is expressed by the equation (1).

P=Rh1+Rh2 (1)

When the landing door 10 warps toward the hoistway 1 by the pressing force P and the lower stopper 23 is pressed against the upper surface of the landing threshold 8, a reaction force Rv1 is generated.

Further, the landing door 10 is pushed upward by the reaction force Rv1, and the upper stopper 21 is pressed against the lower surface of the door rail 15 to generate the reaction force Rv2.

Here, the relationship between the reaction force Rv1 and the reaction force Rv2 is expressed by Expression (2).

Rv1=Rv2 (2)

Due to the reaction force Rv1 and the reaction force Rv2, the landing door 10 is stretched between the upper surface of the sill 8 and the lower surface of the door rail 15, and the warp of the door is suppressed.

In the elevator door device according to the first embodiment of the present invention, when the landing door 10 is pushed from the front side, the landing door 10 is prevented from being warped, and the landing door 10 is prevented from coming off the landing threshold 8 and the door rail 15. it can.

Further, since the lower stopper 23 is fixed to the door shoe attachment portion 18b of the door body 18 together with the door shoe 22 with the bolt 31, the lower stopper 23 can be easily attached. In particular, the lower stopper 23 can be easily attached to an existing elevator door device including the door main body 18, the door sash 22, and the hall sill 8 without replacing or processing the hall door or the hall sill.

Further, since the lower stopper 23 is L-shaped in shape, it can be easily manufactured by bending a steel plate, and along the side surface of the door body 18 on the hoistway 1 side and the upper surface of the hall sill 8. Since it is installed, the space required for installation can be reduced.

Although the lower stopper 23 is fixed to the door sash mounting portion 18b of the door body 18 together with the door sash 22, it need not be fixed to the door sash mounting portion 18b together with the door sash 22 and may be fixed to the door main body 18. In this case as well, the same effects as the above-described effects of the elevator door device according to the first embodiment of the present invention are achieved.

The lower stopper 23 does not have to be formed by bending one steel plate, and may extend from the door body 18 in the back direction of the landing door 10 and toward the upper surface of the landing sill 8. In this case as well, the same effects as the above-described effects of the elevator door device according to the first embodiment of the present invention are achieved.

The lower stopper 23 may be attached to the upper surface of the hall sill 8 with a gap or may be attached without a gap, and the lower stopper 23 may be attached before the landing door 10 is detached from the hall sill 8. It may be pressed onto the upper surface of the landing threshold 8. In this case as well, the same effects as the above-described effects of the elevator door device according to the first embodiment of the present invention are achieved.

The lower stopper 23 may be the lower stopper 33. The lower stopper 33 is a first modification of the lower stopper 23.

The lower stopper 33 will be described with reference to FIG. FIG. 6 is a transverse cross-sectional view showing a first modified example of the elevator door device viewed from the direction of the arrow indicated by CC in FIG. FIG. 6 shows a state where the landing door 10 is not warped.

In the lower stopper 33, the surface of the pressing surface 33a that is pressed against the upper surface of the hall sill 8 by the pressing force P is rougher than the surface of the surface other than the pressing surface 33a. This processing is, for example, plastic processing, cutting processing, melting processing, and coating processing. The lower stopper 33 is the same as the stopper 23 except for this processing.

In this case as well, the same effects as the above-described effects of the elevator door device according to the first embodiment of the present invention are achieved.

Further, the upper stopper 33 is less likely to slip on the upper surface of the landing sill 8 and is more likely to receive the reaction force Rv1, and the landing door 10 is stretched between the upper surface of the sill 8 and the lower surface of the door rail 15 so that the landing sill 8 and the door rail 15 can be pushed. It is possible to prevent it from coming off easily.

Although the upper stopper 21 is rotatably fixed to the hanger plate 19, it does not have to be rotatable and may be fixed to the hanger plate 19. In this case as well, the same effects as the above-described effects of the elevator door device according to the first embodiment of the present invention are achieved.

The upper stopper 21 may be attached to the lower surface of the door rail 15 with a gap or may be attached without a gap, and the upper stopper 21 may be attached before the landing door 10 comes off the door rail 15. It may be pressed against the lower surface of the. In this case as well, the same effects as the above-described effects of the elevator door device according to the first embodiment of the present invention are achieved.

The elevator door device according to the first embodiment of the present invention is a landing door device, but can be similarly applied to a car door device. In this case as well, the same effects as the above-described effects of the elevator door device according to the first embodiment of the present invention are achieved.

INDUSTRIAL APPLICABILITY The elevator door device according to the present invention can be suitably used as an elevator door device that prevents the door from coming off the sill and the door rail when the door is pushed from the front side.

1 hoistway, 2 hall, 3 skeleton wall, 3a opening, 4 finishing wall, 5 skeleton floor, 6 hall entrance/exit, 7 hall three-way frame, 8 hall sill, 8a guide groove, 9 hall door support, 10 hall door, 11 vertical frame, 12 upper frame, 13 fixing bracket, 14 hanger case, 15 door rail, 16 1st fixing bracket, 17 2nd fixing bracket, 18 door body, 18a panel part, 18b door sash mounting part, 19 hanger plate, 20 hanger Roller, 21 upper stopper, 22 door sash, 23 lower stopper, 23a mounting portion, 23b pressing portion, 24 bolt, 25 nut, 26 roller, 26a groove portion, 26b flange portion, 27 shaft, 28 roller, 29 shaft, 30 nut, 31 Bolt, 32 nut, 33 lower stopper, 33a pressing surface.

Claims (3)

A door that opens and closes the doorway in the width direction of the doorway,
A rail that is located above the doorway and extends in the width direction of the doorway,
A sill that is located below the doorway and has an upper surface that forms the height of the doorway and that has a guide groove that extends in the width direction of the doorway.
The door has an upper guide and an upper stopper provided at an upper portion, and a lower guide and a lower stopper provided at a lower portion,
The upper guide has a groove, the upper portion of the rail is inserted into the groove to guide the movement of the doorway in the width direction, and the movement of the doorway in the depth direction is restricted.
The upper stopper is located below the rail, faces the lower surface of the rail, and is restricted from moving upward by the lower surface of the rail.
The lower guide is inserted into the guide groove of the sill and is guided to move in the width direction of the entrance and exit, and is restricted from moving in the depth direction of the entrance and exit,
The lower stopper, the back direction of the door and extending toward the upper surface of the sill facing the upper surface of the sill, is restricted a movement downward by the upper surface of the sill,
When the lower stopper the door is warped back is pushed from the front side is pressed against the upper surface of the sill, the door is upward by a reaction force generated in the contact point between the upper surface of the sill and the lower stopper It pushed the upper stopper is pressed against the lower surface of the rail, wherein the door is bracing between the upper surface and the lower surface of the rail of the sill, a door device of suppressing an elevator warping of the door. The lower stopper is formed by bending one plate-shaped member,
The lower stopper has a mounting portion and a pressing portion,
The mounting portion and the pressing portion are L-shaped,
Said mounting portion extends toward the upper surface of the sill is attached to a lower portion of the door,
The elevator door device according to claim 1, wherein the pressing portion is bent from the mounting portion and extends in the back direction of the door. The lower stopper, an elevator door device according the to claim 1 or claim 2 rougher than the roughness of the pressing surface of the surface roughness the surface of the surface other than the pressing surface pressed against the upper surface of the sill.

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