JP2014218345A - Guide rail for elevator and elevator device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guide rail for an elevator which uses a simple structure to improve the torsional rigidity while avoiding a protruding object such as a joint bar.SOLUTION: A car guide rail 4a includes: a guide rail body 26 which guides upward and downward movement of a car 6 and has a T shaped cross section; and first and second rod-like reinforcement members 27, 28 fixed to the guide rail body 26. The guide rail body 26 includes: an attachment part 26a to which rail clips 24a, 24b are attached; and a guide part 26b which protrudes perpendicularly from a width direction intermediate portion of the attachment part 26a. The first and second reinforcement members 27, 28 are placed in contact with corners formed by the attachment part 26a and the guide part 26b to be fixed thereto by welding.

Description

  The present invention relates to an elevator guide rail that guides raising and lowering of an elevator, and an elevator apparatus using the same.

  In a conventional elevator apparatus, in order to save space, a device such as a control panel may be installed in a gap between a car lifting area and a hoistway wall in the hoistway. In a machine room-less elevator that does not have a machine room, a hoisting machine may be installed in the gap. Furthermore, the devices installed in the gaps are often fixed to the guide rail via the mounting arm.

  When fixing the device to the guide rail via the mounting arm, the horizontal force caused by the earthquake may cause the device to move in the horizontal direction and cause interference with the car. By increasing the rigidity of the arm or shortening the length of the mounting arm, the displacement of the device is suppressed.

  However, it is not realistic to increase the size of the guide rail, which occupies much of the cost, only to suppress the displacement of the equipment. Even if the rigidity of the mounting arm is increased or the length is shortened, the displacement in the horizontal direction cannot be largely suppressed unless the torsional rigidity of the mounting guide rail is increased.

  In order to increase the torsional rigidity of the guide rail, a reinforcement member is generally attached to the guide rail, and many of the attachment methods are methods of attaching the reinforcement member to the back surface of the guide rail. However, because of the structure of the elevator apparatus, protrusions such as guide rail joint plates and instrument brackets are attached to the back surface of the guide rail every 2.0 to 2.5 m, so these protrusions must be taken into consideration. .

  In a general reinforcing member, the positions of the guide rail joint plate and the instrument bracket are calculated at the design stage, and a hole for avoiding a protrusion is provided at the calculated position. However, in this case, the error of the building and the guide rail may be accumulated, and the position of the protrusion avoidance hole may be shifted from the actual position of the protrusion.

  On the other hand, the reinforcement method which avoids a protrusion by providing a clearance gap between the back surface of a guide rail and a reinforcement member by connecting a reinforcement member to the back surface of a guide rail via a connection member is also proposed. (For example, refer to Patent Document 1).

Japanese Utility Model Publication No. 58-16664

  However, the conventional method for reinforcing a guide rail as disclosed in Patent Document 1 has a problem that the torsional rigidity is reduced as compared with a method in which a reinforcing member is directly attached to the back surface of the guide rail. Moreover, since many connection members are used, there also existed a problem that cost became high.

  The present invention has been made in order to solve the above-described problems, and an elevator guide rail capable of increasing torsional rigidity while avoiding protrusions such as a seam plate with a simple configuration, and the same An object of the present invention is to obtain an elevator apparatus using the.

  The elevator guide rail according to the present invention has an attachment portion to which a holder for holding in the hoistway is attached, and a guide portion protruding at a right angle from the attachment portion, and guides the raising and lowering of the elevating body. A guide rail body having a T-shaped cross section and a rod-shaped reinforcing member that is in contact with and fixed to a corner formed by the mounting portion and the guide portion are provided.

  In the elevator guide rail according to the present invention, the bar-shaped reinforcing member is fixed in contact with the corner formed by the mounting portion and the guide portion of the guide rail body. The torsional rigidity can be increased while avoiding the projecting object such as the seam plate and the holder on the front side of the guide rail body.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a machine room-less type elevator apparatus according to Embodiment 1 of the present invention. It is a front view which shows the control panel and car guide rail of FIG. It is sectional drawing which follows the III-III line of FIG. It is a perspective view which shows the principal part of the car guide rail of FIG. It is a perspective view which shows the 1st and 2nd reinforcement member of FIG. It is a perspective view which shows the other example of the fixing method to the guide rail main body of the 1st and 2nd reinforcement member of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a perspective view showing a machine room-less type elevator apparatus according to Embodiment 1 of the present invention, which is seen through a hoistway. In the figure, a car shock absorber base 2 and a counterweight shock absorber base 3 are fixed to the bottom of the hoistway 1. A car shock absorber (not shown) is installed on the car shock absorber base 2. On the counterweight buffer stand 3, a counterweight buffer (not shown) is installed.

  In the hoistway 1, a pair of car guide rails 4 a and 4 b that are elevator guide rails and a pair of counterweight guide rails 5 a and 5 b that are elevator guide rails are installed. The lower end portions of the car guide rails 4 a and 4 b are located on the car shock absorber table 2. The lower ends of the counterweight guide rails 5a and 5b are positioned on the counterweight buffer base 3.

  The car 6 as a lifting body is raised and lowered in the hoistway 1 while being guided by the car guide rails 4a and 4b. The counterweight 7 which is a lifting body is moved up and down in the hoistway 1 while being guided by the counterweight guide rails 5a and 5b. The counterweight 7 is disposed behind the car 6 so as to face the back of the car 6 when positioned at the same height as the car 6 (rear fall-off type).

  A hoisting machine 8 that raises and lowers the car 6 and the counterweight 7 is installed in the lower part of the hoistway 1. The hoisting machine 8 includes a drive sheave, a hoisting machine motor that rotates the driving sheave, and a hoisting machine brake that brakes the rotation of the driving sheave.

  Further, as the hoisting machine 8, a thin hoisting machine having an axial dimension smaller than a dimension in a direction perpendicular to the axial direction is used. Further, the hoisting machine 8 is disposed in a gap between the elevator region of the car 6 and the hoistway wall.

  At the top of the hoistway 1, an L-shaped return beam 9 is installed. The return wheel 9 has a car return car beam 10 and a counterweight return car beam 11 connected to one end of the car return car beam 10 at a right angle.

  A pair of car return wheels 12 a and 12 b are supported on the car return car beam 10. A counterweight return wheel 13 is supported by the counterweight return beam 11.

  A pair of car suspension wheels 14 a and 14 b are provided at the lower part of the car 6. On the upper part of the counterweight 7, a counterweight suspension wheel 15 is provided.

  The car 6 and the counterweight 7 are suspended in the hoistway 1 by the suspension body 16. As the suspension body 16, a plurality of ropes or a plurality of belts are used.

  Between the vicinity of the upper end portion of the car guide rail 4b and the vicinity of the upper end portion of the counterweight guide rail 5b, a leashing beam 17 is fixed horizontally. The tie-down beam 17 is provided with a cage-side tie-down portion (not shown). The counterweight return beam 11 is provided with a counterweight-side leash stopper 18.

  The suspension body 16 has a first end portion connected to the car-side rope stop portion and a second end portion connected to the counterweight-side rope stop portion 18. The suspension body 16 includes, in order from the first end, the car suspension wheels 14a and 14b, the car return wheels 12a and 12b, the driving sheave of the hoisting machine 8, the counterweight return wheel 13, and the counterweight suspension wheel 15. (2: 1 roping).

  In the vicinity of the lowest floor in the hoistway 1, a control panel 19 that is a hoistway device is installed. The control panel 19 is provided with an elevator control device that controls the operation of the car 6. As the control panel 19, a vertically long and thin panel having a height dimension larger than a width dimension and a thickness dimension smaller than the width dimension is used. Further, the control panel 19 is disposed in a gap between the elevator region of the car 6 and the hoistway wall. A control cable 20 is suspended between the hoistway wall and the car 6.

  2 is a front view showing the control panel 19 and the car guide rail 4a of FIG. 1, and FIG. 3 is a sectional view taken along the line III-III of FIG. The control panel 19 is fixed to the car guide rail 4a via the first and second mounting arms 21 and 22. The first and second mounting arms 21 and 22 are fixed at right angles to the car guide rail 4a, that is, horizontally.

  The upper end of the control panel 19 is fixed to the first mounting arm 21. The lower end of the control panel 19 is fixed to the second mounting arm 22. That is, the second attachment arm 22 is disposed below the first attachment arm 21.

  A plurality of rail brackets 23 are installed in the hoistway 1 at intervals in the vertical direction. Each rail bracket 23 is provided with a pair of rail clips 24a and 24b as holding tools for holding the car guide rail 4a and a pair of fasteners 25a and 25b for pressing the rail clips 24a and 24b against the car guide rail 4a. ing. Bolts and nuts are used as the fasteners 25a and 25b.

  The car guide rail 4 a includes a guide rail body 26 having a T-shaped cross section for guiding the raising and lowering of the car 6, and rod-shaped first and second reinforcing members 27 and 28 fixed to the guide rail body 26. . The guide rail body 26 is configured by joining a plurality of rail members in the vertical direction.

  The guide rail body 26 includes an attachment portion (flange portion) 26a to which the rail clips 24a and 24b are attached, and a guide portion 26b that protrudes perpendicularly from an intermediate portion in the width direction of the attachment portion 26a. Furthermore, the guide rail body 26 is clamped between the rail clips 24a and 24b and the rail bracket 23 by fastening the fasteners 25a and 25b.

  The car 6 is provided with a plurality of guide devices 29 (FIG. 3) that engage with the guide portion 26b. As the guide device 29, a guide shoe that slides along the guide portion 26b or a roller guide device that has a plurality of guide rollers that roll along the guide portion 26b is used.

  The first and second reinforcing members 27 and 28 are made of, for example, steel, and are in contact with corners formed by the attachment portion 26a and the guide portion 26b, respectively, and are fixed by welding. Further, the first and second reinforcing members 27 and 28 are arranged so as not to interfere with the rail clips 24 a and 24 b and the guide device 29.

  That is, the first and second reinforcing members 27 and 28 are fixed in contact with the front surface of the mounting portion 26a, avoiding both ends in the width direction of the mounting portion 26a with which the rail bracket 23 is in contact. Further, the first and second reinforcing members 27 and 28 avoid the distal end portion of the guide portion 26b with which the guide device 29 is engaged, and are located on the side surface of the proximal end portion of the guide portion 26b (on the proximal end portion of the guide portion 26b). It is abutted and fixed to the side of the formed constriction.

  Furthermore, the inclined surface inclined in the direction which leaves | separates from the cage | basket | car 6 is provided in the part which is not contacting the guide rail main body 26 of the 1st and 2nd reinforcement members 27 and 28 as it leaves | separates from the guide part 26b.

  Furthermore, as shown in FIG. 2, the reinforcing members 27 and 28 include the entire range from the connection position of the first attachment arm 21 to the connection position of the second attachment arm 22 of the guide rail body 26, and It is continuously arranged over a wider range than the range.

  In this example, the upper ends of the first and second reinforcing members 27 and 28 are above the rail bracket 23 adjacent above the first mounting arm 21 and further above the rail bracket 23 adjacent above the first mounting arm 21. Located below. Further, the lower ends of the first and second reinforcing members 27 and 28 are below the rail bracket 23 adjacent below the second mounting arm 22 and further above the rail bracket 23 adjacent below that. positioned.

  4 is a perspective view showing a main part of the car guide rail 4a of FIG. 2, and FIG. 5 is a perspective view showing the first and second reinforcing members 27 and 28 of FIG. The 1st and 2nd reinforcement members 27 and 28 are arrange | positioned on both the right and left sides of the guide part 26b on both sides of the base end part of the guide part 26b. In this example, the lengths (vertical dimensions) of the first and second reinforcing members 27 and 28 are the same, and the first and second reinforcing members 27 and 28 are arranged symmetrically. .

  The installation structure of the car guide rail 4b and the balance guide rails 5a and 5b in the hoistway 1 is the same as or substantially the same as the installation structure of the car guide rail 4a. If necessary, reinforcing members similar to the first and second reinforcing members 27 and 28 may be fixed to the guide rail body 26 of the car guide rail 4b and the guide rails 5a and 5b. .

  In such a car guide rail 4a, the rod-shaped first and second reinforcing members 27 and 28 are fixed in contact with the corner formed by the mounting portion 26a and the guide portion 26b of the guide rail body 26. With a simple configuration, while avoiding protrusions such as joint plates arranged on the back surface of the guide rail body 26 and rail clips 24a and 24b on the front side of the guide rail body 26, the section modulus is increased and torsional rigidity (torsional rigidity) Rigidity) can be increased.

  For this reason, the moment which generate | occur | produces around the guide rail main body 26 by the horizontal force at the time of an earthquake can be suppressed. In addition, it is not necessary to study to avoid interference with other devices, and the design cost can be reduced.

Further, by adjusting the lengths and fixing positions of the first and second reinforcing members 27 and 28, it is possible to efficiently increase the rigidity of only the necessary portions in terms of strength.
Furthermore, the first and second reinforcing members 27 and 28 can be easily fixed to the guide rail body 26 without removing protrusions or changing parts on the back surface of the guide rail body 26 even after the installation of the guide rail body 26 is completed. can do. That is, it is a structure that does not limit the installation order, and it is possible to reduce restrictions during the installation work.

  In addition, the fixing method to the guide rail main body 26 of the 1st and 2nd reinforcement members 27 and 28 is not limited to welding. For example, as shown in FIG. 6, the first and second reinforcing members 27 and 28 may be pressed against the guide rail body 26 and fixed using a plurality of C-shaped fixing members 30. The fixing members 30 are arranged at intervals in the vertical direction. By pressing the guide rail body 26 and the first and second reinforcing members 27 and 28 inside the fixing member 30, the first and second reinforcing members 27 and 28 are pressed against and fixed to the guide rail body 26. Is done.

In some cases, the reinforcing member may be provided only on either the left or right side of the guide portion.
Furthermore, when using the 1st and 2nd reinforcement member, you may arrange | position these asymmetrically. Further, the lengths of the first and second reinforcing members may be different.
Furthermore, the installation range of the reinforcing member is not limited to the above example. When the reinforcing member is elongated, the reinforcing member may be configured by continuously installing a plurality of divided pieces in the longitudinal direction.
In the above example, the control panel 19 is shown as the hoistway device, but the hoisting machine 8 or other devices may be used.
Furthermore, the present invention can also be applied to the car guide rail 4b and the counterweight guide rails 5a and 5b.

Further, the layout and roping method of the elevator as a whole are not limited to the example of FIG.
Furthermore, the present invention can be applied to various types of elevators such as an elevator having a machine room, a double deck elevator, or a one-shaft multi-car elevator.

  1 hoistway, 4a, 4b car guide rail (elevator guide rail), 5a, 5b counterweight guide rail (elevator guide rail), 6 car (elevator), 7 counterweight (elevator), 19 control Panel (hoistway equipment), 21 1st mounting arm, 22 2nd mounting arm, 24a, 24b Rail clip (holding tool), 26 Guide rail body, 26a Mounting section, 26b Guide section, 27 First reinforcing member , 28 Second reinforcing member.

Claims (5)

A guide rail body having a T-shaped cross section that has a mounting portion to which a holder for holding in the hoistway is attached, and a guide portion that projects perpendicularly from the mounting portion, and that guides the lifting and lowering of the lifting body; An elevator guide rail provided with a rod-shaped reinforcing member that is in contact with and fixed to a corner formed by the mounting portion and the guide portion.   The elevator guide rail according to claim 1, wherein the reinforcing member includes first and second reinforcing members arranged with the guide portion interposed therebetween. A lifting body that is lifted and lowered in the hoistway,
An elevator guide rail that is installed in the hoistway and guides the raising and lowering of the hoisting body, and a hoistway device that is fixed to the elevator guide rail via an attachment arm,
The elevator guide rail is:
A guide rail body having a T-shaped cross section having a mounting portion to which a holder for holding in the hoistway is mounted, a guide portion protruding perpendicularly from the mounting portion, and the mounting portion and the guide portion The elevator apparatus which has the rod-shaped reinforcement member which is contact | abutted and fixed to the corner | angular part which becomes.   The elevator apparatus according to claim 3, wherein the reinforcing member includes first and second reinforcing members arranged with the guide portion interposed therebetween. The mounting arm includes a first mounting arm and a second mounting arm disposed below the first mounting arm,
The reinforcing member includes the entire range from the connection position of the first mounting arm to the connection position of the second mounting arm of the elevator guide rail, and continuously over a range wider than the range. The elevator apparatus of Claim 3 or Claim 4 arrange | positioned.

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