JPS60223772A - Guide rail for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a guide rail for an elevator, and more particularly to an improvement in a guide rail for a counterweight of an elevator.

[Prior art]

Figure 1 shows a schematic cross-sectional view of an elevator equipped with a conventional counterweight guide rail. 1 is a hoistway, 2 is a car, 3 is a door, 4 is a landing door, and 5 is a door. This is a guide rail for a car that is attached to the left and right side walls in the hoistway 1 via support members 6 (Utility Model Publication No. 58-48305). Also, 7
is a counterweight, a pair of parallel guide rails 8m and 9b are arranged in the vertical direction so as to sandwich the counterweight 1 from both ends, and the counterweight T is a guide rail 9.
The guide rail 8a #8b is engaged with the guide rail 8a #8b via the guide rail 8a #8b so as to be movable up and down.
m and 8b are supported on the side walls of the hoistway 1 by support members 6 and 10, respectively.

In such a conventional counterbalanced guide system, in the event of an earthquake, one of the guide rails 8 is bent outward as shown in Figure 2, and the left and right guide rails 8m and 8b are
If the interval is increased, the guide shoe will come off the guide rail when the counterweight T is raised and lowered.

As a means to prevent this, increasing the number of support points of the guide rail to the building and reducing the support intervals, etc.
Alternatively, it is possible to make the guide rail larger, but this poses a problem of high cost.

[Summary of the invention]

This invention solves the above-mentioned conventional problems by forming a pair of guide portions on a single rail member that engage with the left and right guide shoes of the elevating body so as to hug them from both sides.
To provide a guide rail for an elevator that prevents an elevating body from coming off even if the guide rail is bent, reduces the rail installation space, and simplifies its support mechanism.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

3 and 4 respectively show an example of an elevator guide rail of the present invention, that is, an elevator and a counterweight guide rail equipped with a counterweight guide rail, and FIG. The same reference numerals represent the same parts. 1
Reference numeral 1 denotes a rail body that guides the counterweight T so that it can rise and fall within the hoistway 1, and this rail body 11 is formed by bending a steel plate into a channel shape of a desired width corresponding to the formation of the counterweight shift. A leg portion 12 and a guide portion 13m formed by bending and projecting the left and right sides of the leg portion 12 outward in a U-shape.
, 13b, and the guide portion 13a,
13b is parallel to the side wall 1a of the hoistway. Also,
When joining the rail bodies 11 according to the height of the hoistway, the guide portions 13 at the joining ends of the rail bodies to be joined together
Vertical pieces of joint materials 14m and 14b having a T-shaped cross section are press-fitted into the U-shaped portion of Lt13b, and the horizontal pieces and the guide portion 13a are formed.

It is sufficient to integrate the hem portion of 13b with the port nut 15m and 15b by tightening them.

In this way, the single rail main body 11 having the guide portions 13m and 13b on the left and right sides is connected to the rail bracket 17 fixed to the embedded port 16 provided on the hoistway side wall 1&.
By fastening the leg portion 12 with a nut 18, it is supported by the hoistway side wall 1a.

Furthermore, guide shoes 91.9b are attached to the counterbalance shifter so as to sandwich the rail main body 11 from both left and right sides. .

13b, respectively.

In the guide rail of this embodiment as described above, guide parts 13a and 13b for the counterweight are integrally formed on the left and right sides of the single leg part 12 supported by the building, and the rail main body 11 can be accessed from both the left and right sides. Since the guide rail body 11113bK is designed to be inserted into the guide part 11113bK of the guide rail body 11113bK of the counterbalance shifter in a pinched manner, the guide rail body 1
1 is bent between its bracket fulcrums, the left and right guide parts 13&, 13b follow this, and the guide part 13a.

The spacing between 13b hardly changes, and even if it does, the change is extremely small. Therefore, the guide shoes 9m and 9b of the balance weight T are less likely to come off from the guide rail main body 11, and the spacing between the supporting points of the rail can be increased. Also,
Since the rail body 11 is formed from a steel plate, it is possible to reduce the weight of the guide rail, and the number of rail brackets is reduced due to the increased spacing between rail supports, making the rail installation work easier and using less material. You can also reduce expenses and interview costs.

Furthermore, since only one guide rail is required, it is possible to
The space occupied by the guide rail in the hoistway 1 is reduced compared to the straight rail system, and the plane space of the counterweight can be increased accordingly. The overall height can be reduced, contributing to reducing the overall height of the hoistway 1.

In addition, since the guide portions 13&, 13b are formed into a U-shape, a T-shaped joint 14ai4b is inserted into the U-shape.
It is possible to connect the rail bodies by simply inserting them and tightening them with port nuts, and the physical properties and rigidity of the connected parts can be easily checked. Furthermore, since the spacing between the guide parts is set during rail molding, there is no need to adjust the liner when installing the rail.

FIG. 5 shows a second embodiment of the guide rail of the present invention, in which bent pieces 19m of left and right U-shaped guide portions 13a and 13b provided on the channel-shaped leg portion 12 of the rail body 11 are shown.
, 19b are extended inward, and when joining these rail bodies 11 together, a flat joint material 20 is placed in the U-shaped portion of the guide parts 1311, 13b at the joining ends of the rail bodies to be joined together. The bent pieces 19a*19b and the joint material 20 are fastened together with bolts 21.

In this embodiment, the same effect as in the case of Fig. 4 can be obtained, and since the rail joint material is made into a flat plate and shared for the left and right guide parts, it is compared to the embodiment shown in Fig. 4. It can be made at low cost, and the connection rigidity of the left and right guide parts is improved.
Furthermore, since there is no overhang of the U-shaped base toward the opposite leg side,
The installation space is small, and the recess of the counterbalance can be made shallow.

FIG. 6 shows a third embodiment of the invention. In this embodiment, the bent pieces 19 of the left and right U-shaped guide portions 13m and 13b provided on the leg portion 12 of the rail body 11 are
a 119 b are extended even longer than in the case of FIG. 5 to form a closed structure in which the extended ends are joined to each other, and joining edges 22 m and 22 b are formed at the extended ends, and this joining edge 22 a .

22b is fastened to the bolt nut 23.

A flat joint material 2o is used to join the rail bodies together, as in the case of FIG. 5.

In the embodiment shown in Fig. 6, the torsional rigidity of the guide part is improved by adopting a closed structure in which the guide parts 13m and 13b are connected to each other. can. In addition, when inserting the joint material 20, the center joint edges 228, 22b are shaped to open slightly, so that when the bolt/nut '23 is tightened, the joint material 2o is press-fitted into and removed from the U-shaped portion. By doing so, it is possible to omit the means for fixing the joint material and the guide part, and the work efficiency is improved.

FIG. 7 shows a fourth embodiment of the invention. The rail main body 11 in this embodiment is made of a pipe material that is flattened into an elongated shape, and the central portion is further crushed to form U-shaped guide portions 24as24b on the left and right sides.

When supporting the rail main body 11 on the side wall 1a of a building, it is fastened with bolts and nuts 26 to a mouth-shaped bracket 25 disposed on the wall 1a.

In addition, when joining the rail bodies 11 together, as shown in FIG.
Insert the square joint material 21 into am 24 b,
Just tighten it with bolts and nuts 26.

In the above embodiment, the same effects as in the case of FIG. 4 can be obtained, and a closed rail main body can be provided at a low cost.

FIG. 8 shows a fifth embodiment of the present invention, in which a rail main body 11 having guide portions 28m and 28b on the left and right sides is formed by bending both sides of a steel plate inward into a U-shape, and further The bent sides are made to stand up at right angles and the legs 29a, 29b are
A flange 30ae3ob is formed by bending the end of the leg 29't29b outward.

When installing the rail main body 11 constructed by bending a steel plate in this way on the side wall 1a of a building, etc., as shown in FIG. Attachment is carried out by clamping and fixing the leg flanges 30m and 30b of the rail main body 11 with the clips 32.

Therefore, there is no need to form holes on the rail side for attaching the rail to the bracket 31, and there is an advantage that the rail can be fixed at any location. Moreover, it goes without saying that the same effects as in FIG. 4 can be obtained in this embodiment as well. In addition, the code|symbol 20 is a rail joint material.

FIG. 9 shows a sixth embodiment of the invention. In this embodiment, a rail body 1 is made by bending a steel plate into a flat long ellipse and has U-shaped guide portions 33a*33b on the left and right sides.
1, a leg part 34 is provided connected to the mating end in the center, this leg part 34 is fastened with a bolt/nut 35, and a flange 36 is formed at the end of the leg part 34. It is.

In this embodiment, since the guide portion has a closed structure, it is possible to obtain the same effect as #1 in which the torsional rigidity can be improved or as shown in FIG. 8. Note that the reference numeral 31 is a lever joint.

In the above embodiment, a case has been described in which the rail main body 11 is formed by bending a steel plate, but the rail main body 11 is not limited to this, and may be formed from an extruded metal material. Further, the guide rail of the present invention is not limited to a counterweight.

〔Effect of the invention〕

As explained above, according to the present invention, a pair of guide portions that engage with the left and right guide shoes of the elevating body from both sides are formed in a single rail member, so that the rails can be easily used during an earthquake. Even if the main body is bent, the guide shoe of the elevating body will not come off the rail, the rail support mechanism can be simplified, and workability and installation efficiency can be improved. In addition, since only one guide rail is required, the installation space for the rail can be reduced, and since the guide portion is formed during molding of the guide rail and remains constant, there is no need to adjust the liner during installation.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of an elevator equipped with a conventional elevator guide rail, FIG. 2 is an explanatory diagram of the conventional guide rail, and FIG. 3 is a schematic cross-sectional view of an elevator equipped with the elevator guide rail of the present invention. 4 is a cross-sectional view showing an example of the guide rail for an elevator according to the present invention, and FIGS. 5 to 9 are cross-sectional views showing other embodiments of the guide rail for an elevator according to the present invention. . 1... Hoistway, 2... Car, T... Counterweight D,
sa. 9b... Guide shoe, 11... Rail body, 12.
29m, 29b, 34--leg, 13a,
13b*24m, 24b, 28m, 28bs33m, 3
3b...Guidance part, 11114b, 2G, 27.37.
...Rail joint material, 17,25.31...Placket. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masu Oiwa (2 people) Figure 1/ Figure 2 3!10 Figure 4

Claims (2)

[Claims] (1) A guide rail for an elevator characterized in that a pair of parallel guide portions, which are engaged with the left and right guide shoes of an elevating body so as to be hugged from both sides, are formed on a single rail member so as to protrude left and right. (2) The guide rail for an elevator according to claim 1, wherein the pair of parallel guide portions are formed by bending or processing a steel plate into a U shape.