JPH0316872Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Technical Field] This invention relates to an elevator door, and particularly relates to an improvement in the reinforcement formed on the lower rear side of the top plate.

[Conventional technology]

FIG. 4 is a front view of the elevator door viewed from the landing side. In the figure, 1 indicates an elevator door that is openable and closable at a landing entrance 3 of a floor 2, and an operation panel 4 is disposed on the right side of the elevator door.

Figure 5 shows the door of a conventional elevator (1986-
163471) as seen from the rear side, and FIG. 6 is a longitudinal sectional view of the one shown in FIG. 5. In the figure, the reference numeral 5 indicates a top plate forming the main body of the elevator door 1, and both vertically extending ends thereof are folded back to form a space 5A of a predetermined size. A reinforcing member 6A made of angle material is spot welded to the lower part between the folded portion 5B and the back surface of the top plate 5, thereby forming a reinforcing member 6. Moreover, what is shown by 7 in the figure is a door guide, which is constructed by fixing a sliding member 7B made of a synthetic resin such as nylon to the lower end portion of a core bar 7A made of a steel plate. This door guide 7 is fixed via a fastener 9 such as a bolt to a steel leg seat 8 which is welded and fixed to the reinforcing member 6A. The sliding member 7B of the door guide 7 is loosely fitted and supported in the guide groove 10A provided in the sill 10 forming the lower edge of the landing entrance 3, and furthermore, although not shown, the upper end of the top plate 5 is The elevator door 1 can be opened and closed by being suspended by a hanger.

[Problem that the invention attempts to solve]

In the case of the conventional elevator door 1 as described above, the leg seat 8 made of a thick plate with a screw hole for attaching the door guide 7 was fixed to the reinforcing member 6A by fillet welding, so that the door After manufacturing, to prevent the screw holes of the leg seat 8 from being filled with paint, the screw portions were masked while manufacturing the door. Masking work in narrow areas can easily hurt your hands and is unstable.
In addition, since it had to be fitted before painting and removed after painting, there was a problem of poor work efficiency.

Furthermore, since the leg seat 8 is made of a thick plate, it is difficult to position the leg seat 8, and since fillet welding is used, welding distortion occurs, resulting in a problem that a lot of time is spent on removing the distortion.

This invention was made to solve these problems, and the purpose is to obtain an elevator door that eliminates the need for positioning, strain relief work, and masking work and improves the efficiency of the door guide installation work. .

[Means for solving problems]

In the elevator door according to this invention, the reinforcing member fixed to the lower back surface of the top plate has a bolt hole and a metal fitting insertion hole, and the fastener for attaching the door guide to the reinforcing member is a U-shaped metal fitting with a nut fixed to it. The door guide is comprised of a bolt and a nut that is screwed together to fasten the door guide to the reinforcing member.

[Effect]

A U in which the bolt that passed through the reinforcing member and door guide is inserted into the metal fitting insertion hole of the reinforcing member fixed to the top plate.
The door guide is screwed into a nut fixed to the metal fitting, and the door guide is fixed to the reinforcing member by tightening the bolt and nut.

〔Example〕

FIG. 1 is a longitudinal sectional view showing an embodiment of this invention.
FIG. 2 is a partially enlarged sectional view showing the fastener, and FIG. 3 is a rear view of the main part of the elevator door. The same members as in the conventional example are given the same reference numerals, and explanations of their structures will be omitted. In the figure, 12 is a reinforcing member attached to the lower back side of the top plate 5. This reinforcing member 12 includes a first surface portion 12A extending from the back side of the folded portion 5B of the top plate 5 to the back surface of the top plate 5;
A second surface portion 12B is bent downward at a right angle from 2A and extends on the back surface of the top plate 5, and a third surface portion 12 extends upright from the second surface portion 12B toward the folded portion 5B.
C, a fourth surface portion 12D that is bent downward at a right angle from the third surface portion 12C and extends to the middle portion of the empty space 5A; and a fifth surface portion that extends upright from the fourth surface portion 12D toward the back surface of the top plate 5. Consists of 12E. Further, the fourth surface portion 12D of the reinforcing member 12 is formed with a metal fitting insertion hole 13 on the third surface portion 12C side and a bolt hole 14 on the fifth surface portion 12E side. The second surface portion 12B of the reinforcing member 12 is attached to the back surface of the top plate 5 by spot welding, screwing, adhesion, or the like.

15 is a fastener for fixing the door guide 7 to the reinforcing member 12. The fastener 15 consists of the door guide 7, a bolt 16 passing through the bolt hole 14 of the reinforcing member 12, and a U-shaped fitting 18 to which a nut 17 is fixed.

In the elevator door configured as described above, when attaching the door guide 7 to the reinforcing member 12, first the reinforcing member 12 fixed to the back surface of the top plate 5 is attached.
One end of the U-shaped fitting 18 to which the nut 17 is fixed is inserted into the fitting insertion hole 13 of the U-shaped fitting 18. After that, the core metal 7A of the door guide 7 is superimposed on the fourth surface portion 12D of the reinforcing member 12, and the bolt 16 is passed through the mounting hole of the core metal 7A and the bolt hole 14 of the fourth surface portion 12D.
Connect the tip of the bolt 16 to the nut 17 of the U-shaped fitting 18 interposed between the top plate 5 and the fourth surface 12D.
The door guide 7 is fixed to the reinforcing member 12 by tightening the bolt 16 and nut 17. Therefore, the leg seats conventionally used for attaching the reinforcing member 12 of the door guide 7 are not required. For this reason, the positioning that occurs when using the leg seat,
Strain removal work and masking work are also eliminated, and the installation work of the door guide tool 7 can be carried out smoothly and easily.

In this embodiment, an example in which one door guide 7 is attached to the reinforcing member 12 has been explained based on FIG. 1, but it goes without saying that a plurality of door guides 7 may be attached at appropriate intervals as shown in FIG. do not have.

It should be noted that the above embodiment is merely an example, and it goes without saying that various modifications can be made within the scope of the gist of the present invention. For example, the elevator door is not limited to a hall door like the door in the above embodiment, but can also be applied to a car door. Further, the bending structure of the reinforcing member is not limited to that of the above embodiment, but may be any other suitable structure. Further, the door guide is not limited to the one consisting of the core bar 7A and the sliding member 7B, but may be replaced with other structures such as a guide roller pivotally supported by a holder.

[Effect of idea]

As explained above, this idea uses a reinforcing member with a bolt hole and a metal fitting insertion hole, and a fastener consisting of a U-shaped metal fitting to which a nut is fixed and a bolt, to penetrate the reinforcing member and the door guide. The door guide is fixed to the reinforcing member by tightening the bolt and the nut of the U-shaped fitting inserted through the fitting insertion hole of the reinforcing member fixed to the top plate, so the conventional leg seat is unnecessary. As a result, the positioning, strain relief work, and masking work that occur due to the use of leg seats are eliminated, and the efficiency of the installation work of the door guide is significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of this invention.
Figure 2 is a partially enlarged sectional view showing the fasteners, Figure 3 is a rear view of the main parts of the elevator door, Figure 4 is a front view of the elevator door seen from the landing side, and Figure 5 is a conventional elevator door. A partial perspective view of the 6th part seen from the back side.
The figure is a longitudinal cross-sectional view of what is shown in FIG. 4. In the figure, 1 is the elevator door, 5 is the front board,
7 is a door guide, 12 is a reinforcing member, 13 is a metal fitting insertion hole, 14 is a bolt hole, 16 is a bolt, 17 is a nut, and 18 is a U-shaped metal fitting. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In an elevator door whose lower part is reinforced by attaching a door guide to the lower rear side of the top plate via a reinforcing member with a fastener, the reinforcing member has bolt holes and metal fitting insertion holes, and the fastener is provided with bolt holes and metal fitting insertion holes. Consisting of a U-shaped metal fitting to which a nut is fixed and a bolt, the bolt that passes through the reinforcing member and the door guide is screwed into the nut of the U-shaped metal fitting inserted into the metal fitting insertion hole, and the door guide is attached to the reinforcing member. An elevator door characterized by being fastened to.