JPH0543173A - Floor structure for elevator cage - Google Patents

Abstract

PURPOSE:To thin the thickness of an elevator cage floor by providing so that an elevator cage floor supporting frame and an auxiliary supporting frame have an equivalent load. CONSTITUTION:An elevator cage floor supporting frame 15 which supports an elevator cage floor 7 through a vibration-proof rubber 14 formed on the upper part is installed on the upper surface of both edges of a lower beam 6 of an elevator cage frame in an orthogonal direction, and edges of respective car floor supporting frames 15 are connected by a joint metal 17 with each other. An auxiliary supporting frame 16 is disposed between the elevator cage floor supporting frames 15. The auxiliary supporting frame 16 is orthogonally installed to the lower beam 6 at prescribed intervals for respective mounting parts held between the upper surface of the lower beam 6 and the upper surface of the joint metal 17. An interval for mounting parts between the lower beam 6 and the auxiliary supporting frame 16 is set to the prescribed dimension G2 by a jack bolt 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure of an elevator car, and more particularly to a floor structure of a prospective elevator car.

[0002]

2. Description of the Related Art FIG. 4 is a plan view showing a conventional outlook elevator car disclosed in JP-A-57-141382, and FIG. 5 is a side view of the conventional outlook elevator car. In the figure, 1 is an elevator car for observation, 2 is a guide rail, 3 is a rope, 4 is a pillar forming both sides of a car frame, 5 is an upper beam, 6 is a lower beam, 7 is a car floor, 8 is a car frame. Roller guides that are attached to the upper and lower ends of both sides of the elevator car, roll along the guide rails 2, and guide the elevator car 1 up and down. Reference numeral 9 is a cab room, 10 is an exterior plate, 11 is a window glass, and 4 to 7 are joined together using bolts or the like.

4 to 9 show floor structures of conventional view elevators. 6 is a plan view showing a car floor of a conventional prospect elevator, FIG. 7 is a side view of FIG. 6 seen from the X direction, FIG. 8 is a sectional view taken along the line YY of FIG. 6, and FIG. 9 is FIG. It is sectional drawing by the ZZ cutting line. In the figure, a car floor support frame 15 having an L-shaped cross section is joined to the upper surfaces of both ends of the lower beam 6, and columns 4 are joined to the side faces of both ends. Further, the pair of left and right car floor support frames 15 are bent inward on the window side, and the joints 17 are joined to the left and right front end portions and the rear end portions, respectively, and the vibration-proof rubber 14 is attached to the upper surfaces of the joint portions. It is fixed. Further, an auxiliary support frame 16 having a U-shaped cross section is provided between the pair of left and right car floor support frames 15.
Are arranged orthogonally to the upper surface of the lower beam 6, and both ends thereof are joined to the joint 17 via the spacer 18 having a thickness G1. A car floor 7 composed of a floor plate 12 and a reinforcing material 13 is placed on the anti-vibration rubber 14, and a car room 9, an exterior plate 10 and a window glass 11 are placed on the car floor 7.

In the floor structure of the elevator car constructed as described above, the window side portion of the car floor support frame 15 is bent inward in the plane corresponding to the shape of the front surface of the hoistway 1, so that When the load of the cab 9 is applied to the vibrating rubber 14, twisting occurs. For this reason, an auxiliary support frame 16 is attached to the joint 17 connecting the car floor support frames 15 on both sides to reinforce the car floor support frame 15, and the load of the car room 9 is shared and supported. This is the means conventionally used to minimize the car floor thickness P dimension in the view elevator shown in FIG. The reason why the car floor thickness P is reduced is to meet the demand for reducing the R dimension of the exterior plate 10 in FIG. 5 from the viewpoint of design and to reduce the weight.

Next, the dimensional relationship and load between the structural members after the auxiliary support frame 16 is attached to the lower beam 6 and the joint 17 will be described. 10 is an enlarged view of an F portion showing a state in which a spacer is interposed between the lower beam and the auxiliary support frame in FIG. 9, FIG.
FIG. 1 is an enlarged view of an F portion showing a state in which the auxiliary support frame of FIG. 9 is fixed to a lower beam, and FIG. 12 is a principle diagram illustrating loads applied to the car floor support frame and the auxiliary support frame in the conventional elevator car floor structure. Is. A spacer 18 having a thickness G1 is inserted between the auxiliary support frame 16 and the joint piece 17. This is because during installation, deviation of straightness of each structural member, deflection due to the weight of the structural members and the load of the cab 9, thermal deformation due to welding of a joint, twisting during installation, etc. occur. G2 between the lower beam 6 and the auxiliary support frame 16
This is to ensure that the structural members are mutually aligned, the level, and the like.

[0006]

However, since the conventional elevator car floor structure is configured as described above, the spacer 18 is provided in the gap G1 between the auxiliary support frame 16 and the joint 17 during installation. After the insertion, a gap having a thickness of G2 is formed between the lower beam 6 and the auxiliary support frame 16. Therefore, the spacer 20 is inserted to make up for the gap G2, and the flatness is ensured. Since the installation work is performed in a narrow hoistway, it is difficult to insert the spacer 20 that exactly matches the size of the gap G2 between the lower beam 6 and the auxiliary support frame 16, and the lower beam 6 and the auxiliary support Only the spacer 20 having a plate thickness thinner than the gap G2 between the frame 16 and the frame 16 can be inserted. Therefore, the gap α is still present between the lower beam 6 and the auxiliary support frame 16.
When the mounting bolts 19 for fixing the auxiliary support frame 16 are tightened and fixed with the gap α remaining, the gap G2 of the set dimension becomes G2-α and the deformation of the dimension α is performed with respect to the set dimension. Will occur (see FIGS. 10 and 11).

Now, paying attention to the L dimension portion of the car floor support frame 15 and the auxiliary support frame 16 on the window glass side in FIG. 6, in order to simplify the dimensional relationship of each structural member, as shown in FIG. The floor support frame 15 and the auxiliary support frame 16 have the same length L and the same cross-sectional performance. Further, the load applied to the anti-vibration rubber 14 is W. Further, it is considered that the lower beam 6 and the joint 17 are not deformed. First, FIG. 12 (a) shows the case where the load W = 0 when only the car floor 7 is placed, and at this time, between the lower beam 6 and the auxiliary support frame 16, the predetermined dimension G2 is equal to the α dimension. Since it is tightened excessively, the car floor support frame 15 is located above the auxiliary support frame 16 by the dimension α. On the other hand, as shown in FIG. 12B, if the total load value when the load of the car room 9, the exterior plate 10, the window glass 11 and the passenger is applied on the car floor 7 is W = P, the load is Is added, when the deflections of both members are compared, the car floor support frame 15 becomes larger than the auxiliary support frame 16.

These facts mean that a larger load is applied to the car floor support frame 15 as compared with the auxiliary support frame 16, and that the auxiliary support frame 16 is not working effectively. That is, the car floor support frame 15 is required to have strength enough to supplement the sectional performance of the auxiliary support frame 16. Therefore, the height of the cross section is increased due to the necessity of improving the strength of the car floor support frame 15, which results in the car floor thickness P dimension and the exterior plate 1.
When the R dimension of 0 becomes large, the aesthetics of the elevator for observation is spoiled and the weight of the car increases.

[0009] Therefore, an object of the present invention is to provide a floor structure of an elevator car in which the car floor support frame and the auxiliary support frame receive equal loads, and thus the car floor thickness can be reduced.

[0010]

According to the floor structure of an elevator car according to the present invention, a car floor support frame for supporting a car floor via an elastic body provided on the upper side of both ends of lower beams of a car frame is provided. Mounted at right angles, connecting the ends of the car floor support frames with a connecting member, arranging an auxiliary support frame between the car floor support frames, and connecting it to the upper surface of the auxiliary beam at right angles to the lower beam. And a mounting space between the lower beam and the auxiliary support frame is maintained at a predetermined size by a space holder.

[0011]

In the present invention, since the space between the lower beam and the auxiliary support frame is maintained at a predetermined size by the space holder, the auxiliary support frame is not excessively pushed down and is not deformed, so that the levelness is secured. To be done. As a result, the load surfaces of the car floor support frame and the auxiliary support frame are located on the same plane, and the same load is applied.

[0012]

【Example】

<First Embodiment> First, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is an enlarged view of essential parts showing a state in which jack bolts are attached between a lower beam and an auxiliary support frame in the floor structure of an elevator car according to the first embodiment of the present invention. In the figure, the same reference numerals as those in FIGS. 4 to 12 are the same as or equivalent to the conventional constituent parts. In the figure, reference numeral 21 denotes a jack bolt screwed to a lower piece of the auxiliary support frame 16 having a U-shaped cross section, and the tip of the jack bolt penetrates the lower piece of the auxiliary support frame 16 to form the lower beam 6. Pressing the top surface. 22 is a lock nut for preventing loosening.

The gap G2 between the lower beam 6 and the auxiliary support frame 16 is the same as in the conventional example, and the auxiliary support frame 16 and the joint piece 1 are provided.
7, a spacer 18 having a thickness G1 is interposed between the structural members, the straightness of each structural member is deviated, the structural member is deflected by its own weight and the load of the cab 9, thermal deformation due to welding of a joint portion, and the like The purpose of this is to absorb the deformation of these structural members caused by the twisting of the structural members, thereby ensuring the mutual position, levelness, etc. of each structural member. The gap G2 between the lower beam 6 and the auxiliary support frame 16 can be secured to a predetermined size by attaching the jack bolt 21 and screwing the lock nut 22. The auxiliary support frame 16 is fixed to the lower beam 6 by using a mounting bolt or the like.

Next, the operation of the floor structure of the elevator car of the present embodiment constructed as described above will be explained. Since the lower bolt 6 and the auxiliary support frame 16 are held at predetermined intervals by the jack bolts 21, the auxiliary support frame 16 and the joint 17 are held.
The auxiliary support frame 16 maintains linearity without being deformed in relation to the gap G1 between and, and the levelness with which the load surface is at the same height as the car floor support frame 15 can be secured.

Now, a state in which a load is applied to the car floor support frame 15 and the auxiliary support frame 16 will be described with reference to FIG. FIG. 2 is a principle diagram for explaining the load applied to the car floor support frame and the auxiliary support frame in the floor structure of the elevator car according to the first embodiment of the present invention, and FIG. 2 (a) is a view when a load only on the car floor is applied. The state, (b) shows a state when the load of the elevator car and passengers is further applied.

First, the car floor support frame 15 and the auxiliary support frame 16
When a load is applied only to the car floor 7, that is, W = 0, both the car floor support frame 15 and the auxiliary support frame 16 are horizontal straight lines, as shown in FIG. 2 (a). On the other hand, in addition to the car floor 7 in the car floor support frame 15 and the auxiliary support frame 16, the car room 9, the exterior plate 10, the window glass 11 and the load of the passenger, that is,
When W = P acts, as shown in FIG. 2B, equal loads act on the car floor support frame 15 and the auxiliary support frame 16, respectively, and equivalent stress and deformation occur. However, similar to the conventional example, the precondition is that the car floor support frame 15 and the auxiliary support frame 16 have the same sectional performance and the same size, and the lower beam 6 and the joint 17 are not deformed. This means that the car floor support frame 15 and the auxiliary support frame 16 have the same minimum cross-sectional performance, and therefore the car floor thickness can be minimized.

As described above, in the floor structure of the elevator car according to the above-described embodiment, the car floor support frame 15 for supporting the car floor 7 via the vibration isolating rubber 14 as an elastic body provided on the upper part is provided under the car frame. Attached to the upper surfaces of both ends of the beam 6 at right angles, and connecting the ends of the car floor support frames 15 with each other by a joint member 17 serving as a connecting member.
, The auxiliary support frame 16 is arranged between the car floor support frames 15, and is orthogonal to the lower beam 6 and its upper surface and the joint 1
7 are installed so as to hold predetermined mounting gaps G2 and G1 between them and the upper surface of 7, and a gap G2 for the mounting portion between the lower beam 6 and the auxiliary support frame 16 is provided by the jack bolt 21 which is a spacing holder. It is held at a predetermined size.

Therefore, according to the above-described embodiment, the gap G between the lower beam 6 and the auxiliary support frame 16 is set by the jack bolt 21.
Since 2 is held in a predetermined size, the auxiliary support frame 16 can secure the levelness without being deformed, and the car floor support frame 15 and the auxiliary support frame 16 are applied with an equal load, and thus are substantially the same. The minimum cross-sectional performance, that is, the minimum cross-sectional height can be achieved, and the car floor thickness P can be minimized.
As a result, the R dimension of the exterior plate 10 can be reduced, the design of the elevator for observation can be improved, and the weight of the car can be reduced.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is an enlarged view of an essential part showing a mounting portion of the lower beam 6 and the auxiliary support frame 16 in the floor structure of the elevator car according to the second embodiment of the present invention. In the figure, 1
Reference numeral 9 is a mounting bolt for fixing the auxiliary support frame 16 to the lower beam 6, and a spacer 20 is inserted in a gap G2 between the lower beam 6 and the auxiliary support frame 16. Reference numeral 23 is an attachment metal which is joined to the side surface of the auxiliary support frame 16 and for attaching the jack bolt 24.

In the second embodiment, since the jack bolt 24 widens the gap between the lower beam 6 and the auxiliary support frame 16,
The spacer 20 having the same thickness as the predetermined gap G2 between the lower beam 6 and the auxiliary support frame 16 can be easily inserted. Therefore, as in the first embodiment, the horizontal level of the auxiliary support frame 16 is ensured, so that the car floor support frame 15 and the auxiliary support frame 1 as shown in FIG.
6 is the same straight line, and the same load acts.

By the way, in each of the above-described embodiments, the jack bolt 21 or the jack bolt 24 is used as a space holder for holding the space between the lower beam 6 and the auxiliary support frame 16 at G2 of a predetermined size.
However, when the present invention is carried out, the present invention is not limited to this, and may be any one as long as the G2 dimension can be surely secured. In addition, each of the above-described embodiments describes the case where the window side portion of the car floor support frame 15 is applied to the view elevator in which the window side portion is bent inward. However, when the present invention is implemented, the present invention is not limited to this. Not something
The same can be applied to the case of an ordinary elevator in which the car floor support frame 15 is not bent.

[0022]

As described above, according to the floor structure of the elevator car of the present invention, the car floor supporting frame for supporting the car floor through the elastic body provided on the upper part is provided on the upper surfaces of both ends of the lower beam of the car frame. Mounted at right angles, connecting the ends of the car floor support frames with a connecting member, arranging an auxiliary support frame between the car floor support frames, and connecting it to the upper surface of the auxiliary beam at right angles to the lower beam. And a mounting space between the lower beam and the auxiliary support frame is maintained at a predetermined size by a space holder. Therefore, since the space between the lower beam and the auxiliary support frame is maintained at a predetermined value by the space holder, the auxiliary support frame can maintain the levelness without being deformed, and the car floor support frame and the auxiliary support frame have the same level. Since a load is applied, almost the same minimum sectional performance,
That is, the height of the cross section can be minimized, and the car floor thickness can be minimized. As a result, R of the exterior plate 10
The size of the car can be reduced, the design of the elevator for observation can be improved, and the weight of the car can be reduced.

[Brief description of drawings]

FIG. 1 is an enlarged view of essential parts showing a state in which a jack bolt is attached between a lower beam and an auxiliary support frame in the floor structure of an elevator car according to the first embodiment of the present invention.

FIG. 2 is a principle diagram illustrating loads applied to a car floor support frame and an auxiliary support frame in the elevator car floor structure according to the first embodiment of the present invention.

FIG. 3 is an enlarged view of an essential part showing a mounting portion of a lower beam and an auxiliary support frame in a floor structure of an elevator car according to a second embodiment of the present invention.

FIG. 4 is a plan view showing a conventional outlook elevator car.

FIG. 5 is a side view of a conventional outlook elevator car.

FIG. 6 is a plan view showing a car floor of a conventional view elevator.

FIG. 7 is a side view of FIG. 6 viewed from the X direction.

FIG. 8 is a cross-sectional view taken along the line YY of FIG.

9 is a sectional view taken along the line ZZ of FIG.

FIG. 10 is an enlarged view of an F portion showing a state in which a spacer is inserted between the lower beam and the auxiliary support frame in FIG.

FIG. 11 is an enlarged view of an F portion showing a state where the auxiliary support frame of FIG. 9 is fixed to the lower beam.

FIG. 12 is a principle diagram illustrating loads applied to a car floor support frame and an auxiliary support frame in a conventional elevator car floor structure.

[Explanation of symbols]

 6 Lower beam 7 Car floor 14 Anti-vibration rubber 15 Car floor support frame 16 Auxiliary support frame 17 Splice 21, 24 Jack bolt G1 Gap between the attachment part of the supplementary support frame and the splice G2 Gap

Claims (1)

[Claims] 1. A car floor support frame which is mounted on the upper surfaces of both ends of a lower beam of the car frame in a direction perpendicular to the car frame and supports the car floor through elastic members provided above the car floor support frame. Arranged between the connecting member connecting the ends and the car floor support frame, and maintaining a predetermined mounting portion gap between the upper surface of the lower beam and the upper surface of the connecting member orthogonal to the lower beam. A floor structure for an elevator car, comprising: an auxiliary support frame that is erected on the elevator car; and a space retainer that maintains a gap between mounting portions of the lower beam and the auxiliary support frame at a predetermined size.