CN-117500743-B - Door device of elevator

Abstract

In the door device of the elevator, the sill-side drop preventing member has a sill-side fixing portion and a sill-side projecting portion, the sill-side fixing portion is fixed in the sill groove, and the sill-side projecting portion projects from the sill-side fixing portion in a door moving direction, i.e., an opening direction when the door opens the elevator entrance. The door-side anti-drop member has a door-side fixing portion fixed to a lower portion of the door main body and a door-side protruding portion protruding from the door-side fixing portion in a closing direction, which is a moving direction of the door when the door closes the elevator entrance. In a state where the door completely closes the elevator entrance, at least a part of the door-side protruding portion is located in a position away downward from the sill-side protruding portion in the sill groove.

Inventors

• TSUYA NATSUKI
• KITAZAWA MASAYA
• AKAO YOSHIHITO

Assignees

• 三菱电机株式会社

Dates

Publication Date

20260508

Application Date

20210621

Claims (20)

1. 1. A door device of an elevator, wherein the door device of an elevator has: a sill provided at a lower portion of an elevator doorway, the sill having a sill groove provided along a lateral width direction of the elevator doorway; a door which moves along the transverse width direction of the elevator entrance to open and close the elevator entrance, and A door anti-falling structure part, The door has a door body and an insertion portion provided at a lower portion of the door body, The insertion part has a1 st guide member inserted into the sill groove, The door drop-proof structure part is provided with a sill side drop-proof component and a door side drop-proof component, The sill-side preventive member has a sill-side fixed portion fixed in the sill groove and a sill-side protruding portion protruding from the sill-side fixed portion in an opening direction, which is a moving direction of the door when the door opens the elevator entrance, The door-side anti-drop member has a door-side fixing portion fixed to a lower portion of the door main body and a door-side protruding portion protruding from the door-side fixing portion in a closing direction, which is a moving direction of the door when the door closes the elevator entrance, In the state that the door completely closes the elevator entrance, at least a part of the door side protruding part is positioned at a position separated downward from the sill side protruding part in the sill groove, The sill-side protrusion has a sill-side arm portion protruding from the sill-side fixing portion in the opening direction and a sill-side hook portion protruding downward from the sill-side arm portion, The door-side protruding portion has a door-side arm portion protruding from the door-side fixing portion in the closing direction and a door-side hook portion protruding upward from the door-side arm portion, In a state where the door completely closes the elevator entrance, the position of the door-side hook portion is closer to the sill-side fixed portion than the position of the sill-side hook portion.
2. 2. A door device of an elevator, wherein the door device of an elevator has: a sill provided at a lower portion of an elevator doorway, the sill having a sill groove provided along a lateral width direction of the elevator doorway; a door which moves along the transverse width direction of the elevator entrance to open and close the elevator entrance, and A door anti-falling structure part, The door has a door body and an insertion portion provided at a lower portion of the door body, The insertion part has a1 st guide member inserted into the sill groove, The door drop-proof structure part is provided with a sill side drop-proof component and a door side drop-proof component, The sill-side preventive member has a sill-side fixed portion fixed in the sill groove and a sill-side protruding portion protruding from the sill-side fixed portion in an opening direction, which is a moving direction of the door when the door opens the elevator entrance, The door-side anti-drop member has a door-side fixing portion fixed to a lower portion of the door main body and a door-side protruding portion protruding from the door-side fixing portion in a closing direction, which is a moving direction of the door when the door closes the elevator entrance, In the state that the door completely closes the elevator entrance, at least a part of the door side protruding part is positioned at a position separated downward from the sill side protruding part in the sill groove, The 1 st guide member has a1 st shoe positioned in the sill groove, The 1 st shoe has a larger dimension in the width direction of the sill groove than the door side drop prevention member, When the door-side drop prevention member is viewed along the lateral width direction of the elevator doorway, the door-side drop prevention member is located within the range of the 1 st shoe in the width direction of the sill groove.
3. 3. A door device of an elevator, wherein the door device of an elevator has: a sill provided at a lower portion of an elevator doorway, the sill having a sill groove provided along a lateral width direction of the elevator doorway; a door which moves along the transverse width direction of the elevator entrance to open and close the elevator entrance, and A door anti-falling structure part, The door has a door body and an insertion portion provided at a lower portion of the door body, The insertion part has a1 st guide member inserted into the sill groove, The door drop-proof structure part is provided with a sill side drop-proof component and a door side drop-proof component, The sill-side preventive member has a sill-side fixed portion fixed in the sill groove and a sill-side protruding portion protruding from the sill-side fixed portion in an opening direction, which is a moving direction of the door when the door opens the elevator entrance, The door-side anti-drop member has a door-side fixing portion fixed to a lower portion of the door main body and a door-side protruding portion protruding from the door-side fixing portion in a closing direction, which is a moving direction of the door when the door closes the elevator entrance, In a state where the door completely closes the elevator entrance, at least a part of the door-side protruding portion is located at a position spaced downward from the sill-side protruding portion in the sill, the position of the lower end portion of the door-side drop preventing member is a position lower than the position of the lower end portion of the 1 st guide member, The inner surface of the sill groove has a groove 1 st side and a groove 2 nd side which are opposite to each other in the width direction of the sill groove, The outer surface of the 1 st guide member has a1 st guide 1 st side surface facing the 1 st side surface of the groove and a1 st guide lower surface facing downward, A groove 1 upper inclined surface which is inclined downward from the upper surface of the sill toward the groove 1 side surface is formed between the upper surface of the sill and the groove 1 side surface, A1 st guide 1 st lower inclined surface which is formed between the 1 st guide 1 st side surface and the 1 st guide lower surface and is inclined upward from the 1 st guide lower surface toward the 1 st guide 1 st side surface, The sum of the dimensions of the groove 1 st upper inclined surface and the 1 st guide 1 st lower inclined surface in the width direction of the sill groove is larger than the distance between the door side drop prevention member and the 1 st guide 1 st side surface in the width direction of the sill groove.
4. 4. A door device of an elevator, wherein the door device of an elevator has: a sill provided at a lower portion of an elevator doorway, the sill having a sill groove provided along a lateral width direction of the elevator doorway; a door which moves along the transverse width direction of the elevator entrance to open and close the elevator entrance, and A door anti-falling structure part, The door has a door body and an insertion portion provided at a lower portion of the door body, The insertion part has a1 st guide member inserted into the sill groove, The door drop-proof structure part is provided with a sill side drop-proof component and a door side drop-proof component, The sill-side preventive member has a sill-side fixed portion fixed in the sill groove and a sill-side protruding portion protruding from the sill-side fixed portion in an opening direction, which is a moving direction of the door when the door opens the elevator entrance, The door-side anti-drop member has a door-side fixing portion fixed to a lower portion of the door main body and a door-side protruding portion protruding from the door-side fixing portion in a closing direction, which is a moving direction of the door when the door closes the elevator entrance, In the state that the door completely closes the elevator entrance, at least a part of the door side protruding part is positioned at a position separated downward from the sill side protruding part in the sill groove, The door device of the elevator is provided with an additional anti-falling component fixed at the lower part of the door, The insertion part has a 2 nd guide member inserted into the sill groove, The position of the 2 nd guide member is away from the position of the 1 st guide member in the opening direction, The position of the additional anti-drop component is separated from the position of the door-side anti-drop component towards the opening direction, The additional anti-drop component is inserted into the sill groove, The position of the lower end of the additional retaining member is lower than the position of the lower end of the 2 nd guide member.
5. 5. The door device of an elevator as claimed in claim 4, wherein, The inner surface of the sill groove has a groove 1 st side and a groove 2 nd side which are opposite to each other in the width direction of the sill groove, The outer surface of the 2 nd guide member has a 2 nd guide 1 st side surface facing the 1 st side surface of the groove and a 2 nd guide lower surface facing downward, A groove 1 upper inclined surface which is inclined downward from the upper surface of the sill toward the groove 1 side surface is formed between the upper surface of the sill and the groove 1 side surface, A 2 nd guide 1 st lower inclined surface which is formed between the 2 nd guide 1 st side surface and the 2 nd guide lower surface and is inclined upward from the 2 nd guide lower surface toward the 2 nd guide 1 st side surface, The sum of the dimensions of the groove 1 st upper inclined surface and the groove 2 nd guide 1 st lower inclined surface in the width direction of the sill groove is larger than the distance between the additional anti-drop member and the 2 nd guide 1 st side surface in the width direction of the sill groove.
6. 6. The door device of an elevator as claimed in claim 4, wherein, The 2 nd guide member has a 2 nd shoe positioned in the sill groove, The size of the second shoe 2 in the width direction of the sill groove is larger than the size of the additional anti-drop member in the width direction of the sill groove, When the additional anti-drop member is viewed along the transverse width direction of the elevator entrance, the additional anti-drop member is positioned within the range of the 2 nd shoe in the width direction of the sill groove.
7. 7. The door device of an elevator according to claim 5, wherein, The 2 nd guide member has a 2 nd shoe positioned in the sill groove, The size of the second shoe 2 in the width direction of the sill groove is larger than the size of the additional anti-drop member in the width direction of the sill groove, When the additional anti-drop member is viewed along the transverse width direction of the elevator entrance, the additional anti-drop member is positioned within the range of the 2 nd shoe in the width direction of the sill groove.
8. 8. The door device of an elevator as claimed in claim 4, wherein, The 2 nd guide member and the additional drop-preventing member are fixed to a lower portion of the door main body by a common fastener.
9. 9. The door device of an elevator according to claim 5, wherein, The 2 nd guide member and the additional drop-preventing member are fixed to a lower portion of the door main body by a common fastener.
10. 10. The door apparatus of an elevator as claimed in claim 6, wherein, The 2 nd guide member and the additional drop-preventing member are fixed to a lower portion of the door main body by a common fastener.
11. 11. The door apparatus of an elevator as claimed in claim 7, wherein, The 2 nd guide member and the additional drop-preventing member are fixed to a lower portion of the door main body by a common fastener.
12. 12. The door device of an elevator according to any one of claims 4 to 11, wherein, The shape of the additional anti-drop component is the same as the shape of the door-side anti-drop component.
13. 13. The door device of an elevator according to any one of claims 1 to 2 and 4 to 11, wherein, The lower end portion of the door-side drop-off preventing member is positioned lower than the lower end portion of the 1 st guide member.
14. 14. The door device of an elevator according to claim 12, wherein, The lower end portion of the door-side drop-off preventing member is positioned lower than the lower end portion of the 1 st guide member.
15. 15. The door device of an elevator according to any one of claims 1 to 11, wherein, The 1 st guide member and the door side escape prevention member are fixed to a lower portion of the door main body by a common fastener.
16. 16. The door device of an elevator according to claim 12, wherein, The 1 st guide member and the door side escape prevention member are fixed to a lower portion of the door main body by a common fastener.
17. 17. The door device of an elevator according to claim 13, wherein, The 1 st guide member and the door side escape prevention member are fixed to a lower portion of the door main body by a common fastener.
18. 18. The door apparatus of an elevator as claimed in claim 14, wherein, The 1 st guide member and the door side escape prevention member are fixed to a lower portion of the door main body by a common fastener.
19. 19. The door device of an elevator according to any one of claims 1 to 11, wherein, The sill-side fixing portion is detachable from the sill.
20. 20. The door device of an elevator according to claim 12, wherein, The sill-side fixing portion is detachable from the sill.

Description

Door device of elevator Technical Field The present disclosure relates to a door device for an elevator for opening and closing an elevator entrance. Background In a conventional door device for an elevator, a guide shoe is attached to a lower end portion of a sliding door that opens and closes an elevator entrance. The sill of the elevator doorway is provided with a guide groove. The guide shoe is inserted into the guide groove. In the door device of the existing elevator, when the sliding door receives an external force, the sliding door flexes, so that the guide shoe may be separated from the guide groove. Conventionally, in order to prevent the guide shoe from being separated from the guide groove, a door device of an elevator in which a step is formed on a side surface of the guide groove has been proposed. When an external force acts on the sliding door, a part of the guide shoe is caught on the step of the guide groove, thereby preventing the guide shoe from being separated from the guide groove (for example, refer to patent document 1). Prior art literature Patent literature Patent document 1 Japanese patent laid-open publication No. 2010-208745 Disclosure of Invention Problems to be solved by the invention However, in the conventional elevator door device shown in patent document 1, it is necessary to manufacture a special sill having a step formed on the side surface of the guide groove. Therefore, the manufacturing of the sill takes a lot of time and labor, and the manufacturing of the door device of the elevator takes a lot of time and labor. The present disclosure has been made to solve the above-described problems, and an object thereof is to provide a door device of an elevator that can be easily manufactured. Means for solving the problems The elevator door device comprises a sill provided at the lower part of an elevator entrance and provided with a sill groove along the transverse width direction of the elevator entrance, a door moving along the transverse width direction of the elevator entrance to open and close the elevator entrance, and a door anti-drop structure part provided with a door main body and an insertion part provided at the lower part of the door main body, wherein the insertion part is provided with a1 st guide part inserted into the sill groove, the door anti-drop structure part is provided with a sill-side anti-drop part and a door-side anti-drop part, the sill-side anti-drop part is provided with a sill-side fixing part and a sill-side protruding part, the sill-side protruding part is fixed in the sill groove, the sill-side protruding part protrudes from the sill-side fixing part to the opening direction of the door when the door is opened to the elevator entrance, the door-side anti-drop part is provided with a door-side fixing part and a door-side protruding part, the door-side protruding from the door-side fixing part to the opening direction of the door when the door is closed to the elevator entrance, and the sill-side protruding from the opening direction of the door-side protruding part is completely at least in a downward position in the sill groove. Effects of the invention According to the door device of the elevator of the present disclosure, the door device of the elevator can be easily manufactured. Drawings Fig. 1 is an upper side view showing an elevator of embodiment 1. Fig. 2 is a front view showing the car door apparatus of fig. 1. Fig. 3 is an enlarged view illustrating a portion III of fig. 2. Fig. 4 is a cross-sectional view taken along line IV-IV of fig. 3. Fig. 5 is an enlarged view illustrating the V portion of fig. 2. Fig. 6 is a cross-sectional view taken along line VI-VI of fig. 5. Fig. 7 is an enlarged view showing the position of the car sill with respect to the car door when the car sill of fig. 3 is lowered with respect to the car body by a restricting distance E. Fig. 8 is an enlarged view showing a state in which the door-side protrusion of fig. 3 is caught by the sill-side protrusion from below. Fig. 9 is a sectional view showing a state in which the 1 st guide member of fig. 4 is separated upward from the sill groove. Detailed Description The embodiments will be described below with reference to the drawings. Embodiment 1 Fig. 1 is an upper side view showing an elevator of embodiment 1. In the figure, a machine room 2 is provided in an upper portion of a hoistway 1. A hoisting machine 3 as a driving device is provided in the machine room 2. The hoisting machine 3 has a drive sheave 4. The drive sheave 4 is rotated by the driving force of the hoisting machine 3. A plurality of suspension bodies 5 are wound around the drive sheave 4. As the suspension body 5, a rope or a belt is used. In the hoistway 1, a car 6 and a counterweight, not shown, are suspended by a plurality of suspension bodies 5. The car 6 and the counterweight move in the vertical direction in the hoistway 1 by rotation of the drive sheave 4. The car 6 is provided with a