JP2006232457A - Elevator apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator apparatus capable of firmly mounting a supporting member with a connection part of a safety belt being connected thereto without providing any special member to increase the strength of a top face part of a car, reducing the cost, and facilitating the installation work thereof. <P>SOLUTION: An upper end of a rod 9 of a hydraulic jack 7 erected in a hoistway 2 is fixed to an upper transverse frame 20 of a longitudinal frame part 17 erected on a side end of a platform 16. The platform 16 and a car 1 placed on the platform 16 are elevated/lowered in the hoistway 2 by driving the hydraulic jack 7. A supporting member 24 capable of connecting a connection part of a safety belt is provided on the upper transverse frame 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator apparatus including a support member capable of connecting a connecting portion of a safety belt.

  When performing maintenance / inspection work on the elevator car, it is mandatory to wear a safety belt. Conventionally, for example, a handrail erected on the top surface of the car is connected to the safety belt connecting part (the lanyard). It has been used as a support member for connecting a hook portion or the like (see, for example, Patent Document 1).

By the way, in an elevator apparatus in which a car is formed of a panel, the strength of the top surface part itself formed by the ceiling panel of the car is weak, so that a handrail as the support member is specially installed on the car. It is necessary to increase the strength of the top surface of the car by providing a member. However, it is costly to provide a special member that increases the strength of the top surface of the car, and it takes time to install the elevator apparatus. In addition, there is a handrail that does not stand upright on the top surface portion of the car, and in this case, it is necessary to newly provide a support member to which the connecting portion of the safety belt can be connected on the top surface portion of the car. However, in this case as well, it is necessary to provide a special member for increasing the strength of the top surface portion in the car as well. Further, the support member needs to be firmly fixed to the car, which is also expensive in this respect and takes time to install the elevator.
JP-A-8-198549

  The present invention has been invented in view of the above-mentioned conventional problems, and firmly attaches a support member to which a connecting portion of a safety belt is connected without providing a special member that increases the strength of the top surface portion of the car. Therefore, it is an object of the present invention to provide an elevator apparatus that can realize cost reduction and easy installation work.

  In order to solve the above-described problems, an elevator apparatus according to the present invention includes a rod 9 of a hydraulic jack 7 erected on a hoistway 2 on an upper horizontal frame 20 of a vertical frame 17 erected on a side end of a platform 16. In the hydraulic elevator device that lifts and lowers the platform 16 and the car 1 mounted on the platform 16 in the hoistway 2 by driving the hydraulic jack 7 by fixing the upper end portion of the vehicle, the connecting portion of the safety belt can be connected. The support member 24 is provided on the upper horizontal frame body 20. Without providing a special member for increasing the strength of the top surface portion of the car 1 by providing the support member 24 on the upper horizontal frame body 20 having a high structural strength to which the upper end portion of the rod 9 of the hydraulic jack 7 is fixed. The support member 24 to which the connecting portion of the safety belt is connected can be firmly attached, whereby the cost can be reduced and the labor for installing the elevator apparatus can be saved.

  Further, an attachment portion 25 capable of connecting a safety belt connecting portion is formed at one end portion of the support member 24, and the attachment portion 25 is in an upper horizontal frame when the support member 24 is entirely overlapped with the upper horizontal frame body 20 in a plan view. The other end portion of the support member 24 opposite to the mounting portion 25 is attached to the upper horizontal frame body 20 so as to be rotatable about the vertical axis so that it can be changed to a state located outside the body 20. Is also preferable. When the connecting portion of the safety belt is not connected to the support member 24 or when the elevator apparatus is installed, the support member 24 is rotated so as not to protrude outward from the upper horizontal frame body 20 in plan view. Thus, when the car 1 is raised and lowered, the support member 24 hits a member such as a wiring provided in the hoistway 2, or when the car 1 is placed on the platform 16, it is provided in the vertical frame portion 17. It is possible to prevent the car 1 from hitting the support member 24 and preventing the support member 24 from getting in the way when performing wiring work or the like.

  Further, the other end of the upper horizontal frame 20 opposite to the mounting portion 25 is placed in the center of the upper horizontal frame 20 in plan view, and the central portion of the upper horizontal frame 20 in the longitudinal direction and the support member 24 are arranged. A bolt 28 is inserted into the other end portion from above and the other end portion of the support member 24 is rotatably attached to the bolt 28, and a shaft portion 29 of the bolt 28 is screwed to the upper end portion of the rod 9 to be connected to the upper horizontal frame. It is also preferable to fix the upper end of the rod 9 to the body 20. The support member 24 can be attached to the upper horizontal frame body 20 using a bolt 28 for fixing the upper horizontal frame body 20 to the upper end portion of the rod 9, and the support member 24 is attached to the attachment portion 25 using this bolt 28. It is possible to change the other end portion on the opposite side to a state where the entire support member 24 overlaps the upper horizontal frame body 20 in a plan view and a state where the mounting portion 25 is located outside the upper horizontal frame body 20. Thus, it can be attached to the upper horizontal frame 20 so as to be rotatable around the vertical axis. Further, since the center portion of the upper horizontal frame body 20 in a plan view can be fixed to the upper end portion of the rod 9 by the bolt 28, the upper horizontal frame body 20 can be firmly fixed to the rod 9 and, in addition, the support member 24 can be fixed to the upper portion. Since it is attached to the central portion of the horizontal frame body 20 in plan view, when the support member 24 is rotated, the attachment portion 25 is the same in the longitudinal direction of the upper horizontal frame body 20 and the central portion of the car 1 in plan view. If you set the rope length of the safety belt so that you can work anywhere on the car 1, the rope length can be shortened and the operator can hook the rope Can be prevented from falling.

  In the present invention, it is possible to firmly attach the support member to which the connecting portion of the safety belt is connected without providing a special member for increasing the strength of the top surface portion of the car, and it is possible to reduce the cost and to install the elevator apparatus. Save time and effort.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. FIG. 2 is a perspective view showing an example of a hydraulic elevator apparatus according to the present embodiment. As shown in the figure, a hoistway 2 in which a car 1 can be lifted up and down is formed in a building. In this hoistway 2, a hallway that leads to a hall on each floor and a hall door that can automatically open and close the hallway 4 (see FIG. 3).

  As shown in FIG. 2, a jack stand 5 is placed and fixed on a lateral end (left end in the illustrated example) of the bottom surface of the hoistway 2. A hydraulic jack 7 composed of a lower cylinder 8 and an upper rod 9 extending up and down with respect to the cylinder 8 is provided upright in the center of the jack stand 5 in plan view. A hydraulic unit 11 connected to the cylinder 8 of the hydraulic jack 7 via the hydraulic hose 10 is mounted on the bottom surface of the hoistway 2, and the rod 9 of the hydraulic jack 7 is moved by driving the hydraulic unit 11. It can be expanded and contracted up and down. In addition, long guide rails 12 are vertically provided on both sides of the jack stand 5 so as to face each other, and rail portions 13 are formed on the opposing surface portions of the respective guide rails 12 over substantially the entire length in the longitudinal direction. .

  The car 1 that moves up and down in the hoistway 2 is installed on a car frame 15 having an L-shape in front view formed by a steel frame. The car frame 15 is a platform 16 on which the car 1 is installed, and the platform 16. It is comprised with the vertical frame part 17 standingly arranged in the side end part of the left-right direction. As shown in FIGS. 4 and 5, the vertical frame portion 17 connects the side vertical frame body 19 disposed on both sides in the front-rear direction and the upper end portion and the lower end portion of the side vertical frame body 19 on both sides. It is composed of a horizontal frame 20 and a lower horizontal frame 21 and is framed in a rectangular shape.

  The upper horizontal frame 20 constituting the upper end portion of the vertical frame portion 17 shown in FIG. 4 is made of a steel material having a downward U-shape that is long in the front-rear direction. The intermediate portion in the direction and the intermediate portion in the left-right direction) is placed on the upper end surface of the rod 9. A bolt insertion hole 23 is formed in the center of the upper surface of the upper horizontal frame 20.

  As shown in FIG. 1 and the like, a horizontal plate-like support member 24 having a rectangular shape in plan view is attached to the center of the upper surface of the upper horizontal frame 20 so as to be rotatable about the vertical axis. At one end in the longitudinal direction of the support member 24, a connecting portion mounting hole is drilled as a mounting portion 25 that can lock a connecting portion formed of a hook portion of a safety belt (not shown). A bolt hole 26 is formed in the other end of the support member 24 opposite to the mounting portion 25, and the bolt hole 26 and the bolt insertion hole 23 of the upper horizontal frame body 20 are located above the rod 9. An internal thread portion formed in the inner peripheral surface of the bolt hole 27 of the rod 9 is connected to the bolt hole 27 formed in the end face, and the shaft portion 29 of the bolt 28 inserted through the bolt hole 26 and the bolt insertion hole 23 from above. The end of the support member 24 on the bolt hole 26 side and the upper surface of the upper horizontal frame 20 are fixed to the upper end of the rod 9. By fixing the upper end of the rod 9 to the upper surface of the upper horizontal frame 20 in this way, the car frame 15 and the car installed on the car frame 15 when the rod 9 of the hydraulic jack 7 is expanded or contracted. 1 can be moved up and down. Further, the support member 24 loosens screwing of the bolts 28 with respect to the bolt holes 27 and slightly raises the bolts 28 with respect to the upper horizontal frame 20, whereby the shafts of the bolts 28 inserted into the bolt holes 26 of the support member 24. The support member 24 can be rotated around the vertical axis with the portion 29 as the center of rotation.

  Here, the support member 24 provided on the upper horizontal frame body 20 has a width dimension shorter than the width dimension of the upper horizontal frame body 20. Further, the distance from the bolt hole 26 of the support member 24 to the mounting portion 25 is longer than the distance from the bolt insertion hole 23 of the upper horizontal frame 20 to the edge of the upper horizontal frame 20 on the car 1 side in plan view. In addition, the distance from the bolt insertion hole 23 of the upper horizontal frame body 20 to the edge on the upper horizontal frame body 20 side of the car 1 is set shorter. Accordingly, when the screwing of the bolt 28 with respect to the bolt hole 27 is loosened, the support member 24 is rotated so that the support member 24 is entirely overlapped with the upper horizontal frame body 20 in plan view. 6 (hereinafter referred to as a storage state), or a state indicated by a broken line in FIG. 6 where the mounting portion 25 is positioned outside the upper horizontal frame body 20 (hereinafter referred to as a use state). As shown by broken lines in FIGS. 1 and 6, the member 24 is positioned on the side of the car 1 with respect to the upper horizontal frame 20 in plan view with the end on the side of the mounting part 25 facing the car 1 side. In this state, the mounting portion 25 of the support member 24 can be disposed between the car 1 and the upper horizontal frame body 20 of the vertical frame portion 17 in plan view. Further, from this state, the screw 28 is screwed into the bolt hole 27 and the upper surface portion of the support member 24 and the upper horizontal frame body 20 is fixed to the upper end portion of the rod 9, so that the support member 24 can be stored or used. It can be fixed.

  As shown in FIG. 4, each side vertical frame body 19 of the vertical frame portion 17 is formed in a U-shape in plan view with a side piece portion 30 on both sides and a central piece portion 31 connecting the both side piece portions 30. The end of the upper horizontal frame 20 in the longitudinal direction is connected to the upper end of the side vertical frame 19 while being fitted inside the letter-shaped side vertical frame 19. A guide shoe 33 is attached to each of an upper end portion and a lower end portion of the outer surface (surface opposite to the rod 9) of the central piece portion 31 of each side vertical frame body 19 via a liner 32. The rail portion 13 of each guide rail 12 described above is slidably inserted in the up and down rail groove 34 so that the car 1 can move up and down in the hoistway 2 while being guided by the guide rail 12. It has become. Further, a yoke 35 which is long in the horizontal direction is fixed to the side surface portion of the rod 9 opposite to the car 1 by bolts 36, and each side longitudinally is formed in a groove 37 formed on both end surfaces of the yoke 35 in the longitudinal direction. By inserting the end of the side piece 30 on the opposite side of the frame 19 from the car 1, the vertical frame 17 is prevented from swinging with respect to the hydraulic jack 7. Further, the platform 16 is fixed to the lower end portion of the vertical frame portion 17 with bolts 38 as shown in FIG. Note that reference numeral 14 in FIG. 4 denotes oil pots provided on both sides of the upper horizontal frame 20 in the longitudinal direction.

  As shown in FIG. 1 and the like, the car 1 is placed on the platform 16 so that the central portion in plan view is positioned at substantially the same position as the central portion of the upper horizontal frame body 20 in the longitudinal direction (that is, the front-rear direction) of the upper horizontal frame body 20. As shown in FIG. 7, the car 1 includes a rectangular floor panel 40, side panels 41 a to 41 c erected around the front side of the floor panel 40, and a ceiling panel 42. Yes.

  The ceiling panel 42 constituting the top surface portion of the car 1 is located below the upper horizontal frame body 20 of the vertical frame portion 17, and as shown in FIG. 8, the side end portion of the ceiling panel 42 on the vertical frame portion 17 side. A horizontal piece 44 of an L-shaped angle 43 that is long in the front view is placed and fixed on the left and right ends in the illustrated example. Long holes 46 that are long in the longitudinal direction of the angle 43 are formed on both sides in the longitudinal direction of the vertical piece 45 of the L-shaped angle 43, and bolts 47 are formed in the long holes 46 from the side opposite to the vertical frame 17. The shaft portion is inserted into the upper end portion of the side piece portion 30 on the side of the car 1 of each side vertical frame body 19 of the vertical frame portion 17 and screwed into the car steady block 48. The upper end portion of the frame portion 17 is fixed to the upper end portion of the car 1 to prevent the car 1 from swinging with respect to the vertical frame portion 17. Further, as shown in FIG. 9, a car door opening / closing device 49 is attached to the upper edge of the front opening of the car 1 formed by the left and right side panels 41b and 41c, the ceiling panel 42, and the floor panel 40. The car door 50 that closes the front opening of the car 1 can be automatically opened and closed by the device 49. 2 is a control panel of the elevator apparatus mounted on the ceiling panel 42 of the car 1, and 52 is a lighting fixture (downlight) that illuminates the inside of the car 1.

  Therefore, in the elevator apparatus of this example, the above-described support member 24 is in a state where the mounting portion 25 is positioned outside the upper horizontal frame body 20 in plan view (preferably the mounting portion 25 is as shown in FIG. 1). In a state of being positioned on the side of the car 1 with respect to the upper horizontal frame body 20 in plan view), and in this state, the support member 24 is fixed to the upper horizontal frame body 20 with the bolts 28, so that the mounting portion 25 of the support member 24 is fixed. Maintenance / inspection work can be performed on the car 1 while securing the safety by connecting the connecting part of the safety belt worn by the worker. Further, since the support member 24 is provided on the upper horizontal frame 20 of the car frame 15 having a high structural strength to which the upper end portion of the rod 9 of the hydraulic jack 7 is particularly fixed, the strength of the top surface portion of the car 1 is increased. Therefore, the support member 24 can be firmly attached without providing a special member.

  Further, when the connecting portion of the safety belt is not connected to the support member 24, the support member 24 is rotated so that the entire support member 24 overlaps the upper horizontal frame body 20 in a plan view. Can be changed to a storage state that does not protrude outward from the upper horizontal frame body 20 in plan view, so that when the car 1 is raised or lowered, the support member 24 hits a member such as a wiring provided in the hoistway 2. Can be prevented. In addition, when the elevator apparatus is installed, the support member 24 can be changed to the housed state in the same manner as described above, so that when the car 1 is placed on the platform 16 of the car frame 15 having the L-shape when viewed from the front. It is possible to prevent the car 1 from hitting the support member 24 and to prevent the support member 24 from getting in the way when performing wiring work or the like, and it is possible to prevent the support member 24 from being obstructed during the installation work of the elevator apparatus.

  In this example, the other end of the support member 24 opposite to the mounting portion 25 is placed at the center of the upper horizontal frame 20 in plan view, and the longitudinal center of the upper horizontal frame 20 is supported. A bolt 28 is inserted into the other end portion of the member 24 from above, and the other end portion of the support member 24 is rotatably attached to the bolt 28, and a shaft portion 29 of the bolt 28 is screwed to the upper end portion of the rod 9. Since the upper end of the rod 9 is fixed to the upper horizontal frame 20, the support member 24 can be attached to the upper horizontal frame 20 using a bolt 28 for fixing the upper horizontal frame 20 to the upper end of the rod 9. . Further, in this case, by loosening the screwing of the bolt 28 to the rod 9, the support member 24 can be turned and changed to the above-mentioned storage state or use state, so that the support member 24 can be stored or use state with a simple configuration. Can be changed to Further, since the center portion of the upper horizontal frame body 20 in a plan view can be fixed to the upper end portion of the rod 9 by the bolt 28, the upper horizontal frame body 20 can be firmly fixed to the rod 9 and, in addition, the support member 24 can be fixed to the upper portion. Since it is attached to the central portion of the horizontal frame body 20 in plan view, when the support member 24 is rotated, the attachment portion 25 can be positioned at the same position in the front-rear direction as the central portion of the car 1 in plan view. That is, the distance from one corner to the mounting portion 25 and the distance from the other corner to the mounting portion 25 of the two corners on the opposite side to the upper horizontal frame 20 of the car 1 in plan view are substantially the same. If the length of the safety belt is set so that work can be performed anywhere on the car 1, this rope can be shortened and the operator can hook the rope. Can be prevented from falling.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory plan view showing an example of an embodiment of the present invention and schematically showing a car and a car frame. It is a perspective view of an elevator apparatus same as the above. It is a perspective view which shows the landing door same as the above. It is a disassembled perspective view which shows a rod and a vertical frame part same as the above. It is a disassembled perspective view which shows a vertical frame part and a platform same as the above. It is planar view explanatory drawing used for description of rotation of a supporting member same as the above. It is a disassembled perspective view which shows a platform and a cage same as the above. It is a disassembled perspective view which shows the connection with the upper end part of the cage | basket | car and a vertical frame part same as the above. It is a disassembled perspective view of a cage same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Hoistway 7 Hydraulic jack 9 Rod 16 Platform 17 Vertical frame part 20 Upper horizontal frame body 24 Support member 25 Mounting part 28 Bolt 29 Shaft part

Claims (3)

  An upper end of a rod of a hydraulic jack standing on a hoistway is fixed to an upper horizontal frame of a vertical frame portion standing on a side end of the platform, and the platform and the platform in the hoistway are driven by driving the hydraulic jack. An elevator apparatus for raising and lowering a car mounted on a vehicle, wherein a support member capable of connecting a connecting portion of a safety belt is provided on the upper horizontal frame.   A mounting part that can connect the connecting part of the safety belt is formed at one end of the support member, and the support part is overlapped with the upper horizontal frame body in a plan view and the mounting part is positioned outside the upper horizontal frame body. The other end portion of the support member opposite to the mounting portion is attached to the upper horizontal frame body so as to be rotatable about the vertical axis so as to be changeable to the state of being performed. The elevator apparatus as described.   The other end of the upper horizontal frame opposite to the mounting portion of the support member is placed in the center of the upper horizontal frame in plan view, and the central portion in the longitudinal direction of the upper horizontal frame and the other end of the support member are viewed from above. The bolt is inserted and the other end of the support member is rotatably attached to the bolt, and the bolt shaft is screwed to the upper end of the rod and the upper end of the rod is fixed to the upper horizontal frame. The elevator apparatus of Claim 2 characterized by the above-mentioned.

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