JPH0317032B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a door provided in a riding or car in an elevator.

[Technical background of the invention]

Conventionally, this type of elevator door was shown in Figures 1 to 3.
As shown in the figure, a surface panel 1 made of metal such as a thin steel plate that has been subjected to a surface finishing process, and this surface panel 1
It is composed of metal reinforcing members 2, 3, and 4 made of draw-out shapes and the like, which are arranged in three stages on the back side of the frame, top, middle, and bottom. To explain in more detail, the surface panel 1
On both sides thereof, bending portions 1a, 1a having a U-shaped cross section and protruding toward the back side from the lower end thereof are formed so as to face each other. On the other hand, the upper, middle, and lower reinforcement members 2, 3, and 4 have their inner plate parts 2a, 3a, and 4a bonded to the back surface of the front panel 1 with an adhesive 5, and their respective outer plate parts 2b and 3.
b, 4b are inserted into the both side bent portions 1a, 1a of the surface panel 1 to form the both side bent portions 1a, 1a.
It is fixed by spot welding to the folded edge portions 1b, 1b of 1a. The upper reinforcing member 2 is provided with a screw hole 6 for connecting an arm (not shown) of the door opening/closing drive mechanism, and the lower reinforcing member 4 is provided with a door opening/closing guide piece (not shown). A screw hole 7 for attaching the screw is formed.

[Problems with background technology]

By the way, in the elevator door with the above-mentioned configuration,
In manufacturing it, since both ends of each reinforcing material 2, 3, and 4 are inserted into the bent portions 1a and 1a on both sides of the front panel 1, first, the inner plate portion 3a of the middle reinforcing material 3 is In this state, the middle reinforcing material 3 is slid onto the back surface of the front panel 1 from its upper or lower end to a predetermined intermediate position and bonded, and then the upper reinforcing material 2 is attached to the upper end. , the lower reinforcing material 4 is connected to the inner plate portion 2 from the lower tier, respectively.
With the adhesive 5 applied to a and 4a, it is necessary to slide them to predetermined positions up and down on the back surface of the front panel 1 and adhere them. For this purpose, each reinforcing material 2, 3,
Adhesive 5 that was applied in advance during the slide in step 4
The required thickness may not be maintained due to shifting or peeling.
There were cases where reliable adhesion could not be achieved, and it was necessary to use a large amount of adhesive to prevent this. Because quick-drying adhesives cannot be used to simultaneously slide the parts into place, it takes a lot of time to complete the adhesion, making it inefficient.
In addition, when fixing the reinforcing members 2, 3, and 4 in the upper, middle, and lower stages at predetermined positions, the positional dimensions must be measured and positioned individually, and this positioning work is troublesome and requires a lot of effort. There are problems such as spending
It was not suitable for mass production, resulting in high costs, and had the disadvantage that it was not easy to improve quality.

[Purpose of the invention]

This invention was made in view of the above circumstances, and it is possible to position and adhesively fix each reinforcing material to the surface panel very easily, reliably, and highly efficiently with less labor, thereby improving productivity, quality, and cost. An object of the present invention is to provide a highly practical elevator door that can reduce the amount of water.

[Summary of the invention]

The elevator door of the present invention has a vertically elongated front panel having bent parts on both sides that protrude toward the back side and have a U-shaped cross section, and is adhesively fixed to the back side of the front panel in the horizontal direction. In an elevator door comprising a plurality of upper and lower reinforcing members, at least the entire outer plate portion of each of the reinforcing members is smaller than the distance between the folded edges of the folded portions on the back side on both sides of the front panel. It is long and has a height that is flush with the folded edge, and on the other hand, the reinforcing material of each stage is pushed straight from the rear into the folded edge of the folded part on the back side on both sides of the front panel. A notch is provided that can be joined to the back side of the front panel and both ends of the outer plate part of the reinforcing material can fit in the full width, and both ends of the outer plate part of each stage of reinforcing material are fitted into these notches, and the It has a structure in which both ends of the outer plate part and the folded edge part are welded.

With this, in the elevator door of the present invention, first, the reinforcing material of each stage that is adhesively fixed to the back surface of the front panel is simply cut into the required length from a drawn material, etc., and does not require complicated processing. In addition, the front panel has back side bent portions of the same size and a U-shaped cross section on both sides, and the folded edges of the back side bent portions on both sides have the above-mentioned folded portions. It is sufficient to make it possible to join the reinforcing material of each stage to the back surface of the front panel by pushing it straight in from the rear, and to form a simple notch into which both ends of the outer plate part of the reinforcing material can be fitted over the entire width. For this reason, both the surface panel and the reinforcing material of each stage are easy to manufacture.

Next, in the assembly operation, an adhesive is applied to the inner surface of the reinforcing material of each stage, and in this state, the reinforcing material of each stage is pushed straight through the notch from behind. Now, the reinforcing material of each tier is adhesively fixed to each predetermined position on the back surface of the front panel, and both ends of the outer plate part of the reinforcing material of each tier are fitted into the notches, and the side plate part of the reinforcing material is fitted into the notch. and the folded edge portions of the folded portions on both back sides are flush with each other in an attractive manner. In this state, both ends of the outer plate portion of each stage of reinforcing material and the folded edge portions of both back side bent portions are further welded. The assembly work is now complete, and the reinforcing members for each stage are positioned and fixed in place.

Therefore, there is no need to adjust the position of each stage of reinforcing material by sliding it along the back surface of the front panel or inserting it diagonally from one side, as in the past, so the work of positioning them is much easier. In addition to being easy and accurate, it is possible to use a quick-drying adhesive, and the time required for bonding work can be significantly shortened, increasing work efficiency and productivity, and reducing costs. Moreover, in addition to achieving high adhesive strength, both ends of the outer plate part of each stage of reinforcing material are welded flush with the notches of the folded edges of the folded parts on both sides of the back side over the entire width. , the bonding rigidity there is high, there are no steps, and quality can be significantly improved.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 4 to 7. In the figure, parts having the same configuration as those in FIGS. 1 to 3 are given the same reference numerals to simplify the explanation. First, front panel 1
As in the conventional case, there are bent portions 1a, 1 on both sides that protrude toward the back side and have a U-shaped cross section of the same size.
There is a vertically long plate-like one with a. Reinforcing members 2, 3, and 4 in upper, middle, and lower three stages are adhesively fixed to the back side of this front panel 1 in the horizontal direction with adhesive 5, respectively.
At least the entire outer plate portions 2b, 3b, 4b are slightly longer than the distance between the folded edge portions 1b, 1b of the back side bent portions 1a, 1a on both sides of the front panel 1, and the folded edge portions 1b, 1b. It is said to be at the same height. Therefore, notches 8, 8, 9, 9, and 10, 1 are formed at the opposing upper end positions, middle positions, and lower end positions of the respective folded edges 1b, 1b of both back side bent parts 1a, 1a of the front panel 1.
0 is formed respectively. That is, cutouts 8, 8, 9, 9, and 10, 10 are formed corresponding to the installation positions of the upper, middle, and lower reinforcing members 2, 3, and 4, respectively. The depth of these notches is 8 opposite notches,
8, 9, 9 and 10, 10 are set to be equal to the length dimension of each reinforcing material 2, 3, 4, and the width of each notch is set to be equal to the width dimension of each reinforcing material 2, 3, 4. is set equal to . In other words, the upper, middle and lower reinforcing members 2, 3, 4 can be inserted there through the notches 8, 8 and 9, 9 and 10, 10 on both sides without having to slide them into the back surface of the front panel 1 from the upper or lower ends. It is designed to fit by pushing straight in from the rear. The upper, middle, and lower reinforcing members 2, 3, and 4 have the same cross-sectional shape as the conventional one (the upper reinforcing member 2 has a roughly lip Z shape, the middle reinforcing member 3 has a hat shape, and the lower end reinforcing member 4 has a crank shape). However, only the middle reinforcing material 3 has its inner plate parts 3a, 3a cut at both ends to form both side folded edge parts 1b, 1b.
The width of each of the intermediate notches 9, 9 is shorter than the mutual dimension, and the width of each of the intermediate notches 9, 9 is the outer plate portion 3 of the intermediate reinforcing member 3.
It is narrowed to be equal to the width dimension of b.
Furthermore, when each reinforcing material 2, 3, 4 is adhesively fixed to the back surface of the front panel 1 via adhesive 5, the outside of each outer plate portion 2b, 3b, 4b is connected to the bent portion 1 on both sides.
The dimensions are such that they are flush with the outer surfaces of the folded edge portions 1b, 1b of a, 1a.

Therefore, in the elevator door having the above-mentioned configuration,
When attaching each of the reinforcing materials 2, 3, and 4 to the back surface of the front panel 1, apply adhesive 5 to the required thickness on the inner plate portions 2a, 3a, and 4a of the reinforcing materials 2, 3, and 4, respectively.
In this state, cut out both ends directly at the upper, middle and lower predetermined positions on the back surface of the front panel 1, 8,
8 and 9, 9 and 10, 10 so that they fit into each other. With this, the upper, middle and lower reinforcement members 2, 3,
4 are directly positioned at predetermined positions at the top, middle, and bottom of the back surface of the front panel 1, without having to adjust the position by sliding as in the conventional case, and are adhesively fixed as they are with the adhesive 5. Moreover, both ends of the outer plate portions 2b, 3b, 4b of each of the reinforcing members 2, 3, 4 are held flush with the notches 8, 8, 9, 9 and 10, 10 on both sides, so that they are held flush in the vertical direction. movement will be blocked. In this state, the upper, middle and lower reinforcement members 2, 3,
Both ends of the outer plate portions 2b, 3b, 4b of 4 and the notches 8,
8 and the edges of 9 and 10, 10 are fixed by spot welding or the like to complete the assembly.

In other words, with the structure described above, the upper, middle, and lower reinforcing members 2, 3, and 4 can be directly adhesively fixed to each predetermined position on the back surface of the front panel 1 through the notches, and the dimensions can be measured by sliding them as in the conventional method. There is no need for positioning adjustment, there is no waste of the adhesive 5, and a quick-drying adhesive 5 can be used, making it easy to manufacture, reducing time, reducing costs, and improving quality.

Note that the present invention is not limited to the above-mentioned examples; for example, the number of reinforcing materials is not limited to three at the top, middle, and bottom, but may be increased or decreased as appropriate, and the notches may be formed in accordance with the number. Bye.

The form of the reinforcing material is shown in Figures 8 to 10.
Those shown in 1, 12, and 13 are also acceptable,
In this case as well, the notches 15, 16, 17 may be formed in accordance with the shape of the reinforcing members 11, 12, 13, respectively.

〔Effect of the invention〕

Since the present invention is configured as described above, the reinforcing material at each stage can be a simple form that does not require complicated processing, such as simply cutting a drawn material to the required length, and the surface panel can be A front side panel is formed by forming back side bent portions with a U-shaped cross section of the same size on both sides, and pushing the reinforcing materials of each stage straight from behind into the folded edges of the back side bent portions on both sides. It is only necessary to form a simple notch that can be joined to the back side of the reinforcing material, and both ends of the outer plate part of the reinforcing material can be fitted with the full width, and the manufacturing of both the front panel and the reinforcing material of each stage is very easy. It's easy to do. In addition, during assembly, adhesive is applied to the inner surface of the reinforcing material on each tier, and in that state, the reinforcing material on each tier is pushed straight through the notch from the rear, thereby attaching the reinforcing material on each tier to the surface panel. Since it can be adhesively fixed at each predetermined position on the back side of the front panel, there is no need to adjust the position by sliding the reinforcing material at each stage along the back side of the front panel or inserting it diagonally from one side as in the past. In addition to making the positioning work very easy and accurate, it is possible to use a quick-drying adhesive, and the time required for adhesion work can be significantly shortened, increasing work efficiency and productivity, and reducing costs. Moreover, in addition to achieving high adhesive strength, both ends of the outer plate part of each stage of reinforcing material are welded flush with the notches of the folded edges of the folded parts on both sides of the back side over the entire width. , the joint rigidity there is high, there is no step, and the quality can be significantly improved, making it very advantageous as an elevator door.

[Brief explanation of drawings]

Fig. 1 is a rear view showing a conventional example, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a plan view of the conventional example, and Figs. 4 to 7 are one embodiment of the present invention. 4 is a back view, FIG. 5 is a sectional view taken along the - line in FIG. 4, FIG. 6 is a plan view, FIG. 7 is a partially enlarged perspective view, and FIGS. FIG. 10 is a partial perspective view showing different embodiments of the present invention. 1...Front panel, 1a...Bending portion, 1b...
Folded edges, 2, 3, 4, 11, 12, 13...
Reinforcement material, 2a, 3a, 4a...Inner plate part, 2b,
3b, 4b...Outside plate portion, 5...Adhesive, 8,
9, 10, 15, 16, 17... Notches.

Claims (1)

[Claims] 1. A vertically elongated front panel having bent portions each protruding from both sides toward the back side and having a U-shaped cross section;
In an elevator door comprising a plurality of upper and lower reinforcing members which are adhesively fixed to the back side of the front panel in the lateral direction, each of the reinforcing members at each stage has at least the entire outer plate portion attached to the front panel. The folded edge portions of the back side folded portions on both sides of the front panel are slightly longer than the distance between them, and have a height that is flush with the folded edge portions, while the folded edges of the back side bent portions on both sides of the front panel. The reinforcing material of each stage can be pushed straight in from the rear and joined to the back surface of the front panel, and both ends of the outer plate part of the reinforcing material are each provided with a notch into which the entire width can be fitted,
An elevator door characterized in that both ends of the outer plate part of the reinforcing material of each stage are fitted into these notches, and both ends of the outer plate part and the folded edge part are welded.