CN110312672B

CN110312672B - Elevator panel and method for manufacturing elevator panel

Info

Publication number: CN110312672B
Application number: CN201780086715.5A
Authority: CN
Inventors: 泽木泰司; 南雅幸; 铃木稔也; 松井健哉
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2017-02-24
Filing date: 2017-02-24
Publication date: 2021-02-12
Anticipated expiration: 2037-02-24
Also published as: JPWO2018154732A1; WO2018154732A1; CN110312672A; JP6625261B2

Abstract

The elevator panel comprises: a panel main body; a reinforcing plate joined to the panel main body; and a coating member, the reinforcing plate having: a contact surface which contacts with the panel main body; a welding surface formed on the abutting surface; and a cut-and-dig portion annularly formed around the welding surface and penetrating through the reinforcing plate, the welding surface being connected to the reinforcing plate via at least one connecting portion. After welding the welding surfaces of the panel body and the reinforcing plate, a coating member is injected from the cut portion, and the periphery of the welded portion formed by welding the welding surfaces of the panel body and the reinforcing plate is covered with the coating member.

Description

Elevator panel and method for manufacturing elevator panel

Technical Field

The present invention relates to an elevator panel formed by joining a panel body and a reinforcing plate.

Background

Conventionally, in various panel members, in order to reinforce a panel body, a work of joining a reinforcing member to a back surface of the panel body or the like is performed. Welding is mainly used for joining the panel main body and the reinforcing member, and the entire panel member is coated after the reinforcing member is welded to the panel main body (see, for example, patent documents 1 and 2).

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2006-255732

Patent document 2: japanese patent laid-open publication No. 2015-77872

Disclosure of Invention

Problems to be solved by the invention

In the case of joining by welding, since the welded portion has no protective layer such as plating, rust may develop over time. Therefore, after welding, the entire panel is coated to prevent rust. However, when the panel body is made of stainless steel or a cosmetic steel sheet, the front side of the panel cannot be coated with paint, and therefore, a coating method of immersing the entire panel in paint cannot be performed. Therefore, it is necessary to partially coat only the welded portion. However, in a member formed by welding a plurality of steel sheets, a welded portion may not be visible from the outside, and it may be difficult to coat the welded portion.

The present invention has been made to solve the above problems, and provides an elevator panel including: even when the superimposed panel main body and the reinforcing plate are welded, the periphery of the welded portion can be easily coated, oxidation of the welded portion can be suppressed, and rust at the welded portion can be prevented.

Means for solving the problems

The elevator panel of the invention comprises: a panel main body; a reinforcing plate joined to the panel main body by welding; and a coating member, the reinforcing plate having: a contact surface which contacts with the panel main body; a welding surface formed on the abutting surface; and a cut-out portion formed around the welding surface and penetrating through the reinforcing plate, wherein the welding surface is connected to the reinforcing plate via at least one connecting portion, and the coating member is disposed around a welding portion formed by welding the panel body and the welding surface of the reinforcing plate.

Effects of the invention

The invention can prevent the welding part from contacting with the external air and being oxidized to rust by covering the periphery of the welding part formed by welding the panel main body and the reinforcing plate by the coating component.

Drawings

Fig. 1 is a schematic view of an elevator door including an elevator panel according to embodiment 1 of the present invention, as viewed from a hoistway side.

Fig. 2 is a schematic view of an elevator panel in embodiment 1 of the present invention.

Fig. 3 is a sectional view taken along the line III-III of fig. 2.

Fig. 4 is a sectional view taken along line IV-IV of fig. 2.

Fig. 5 is a sectional view taken along line V-V of fig. 2.

Fig. 6 is a diagram showing a modification of the joint portion according to embodiment 1.

Fig. 7 is a schematic view of an elevator panel in embodiment 2 of the present invention.

Fig. 8 is a sectional view taken along line VIII-VIII of fig. 7.

Fig. 9 is a diagram showing a modification of the joint portion according to embodiment 2.

Fig. 10 is a diagram showing a joint portion according to embodiment 3.

Fig. 11 is a sectional view taken along line XI-XI of fig. 10.

Fig. 12 is a diagram showing a joint portion according to embodiment 4.

Fig. 13 is a sectional view taken along line XIII-XIII of fig. 12.

Detailed Description

Hereinafter, preferred embodiments of an elevator panel according to the present invention will be described with reference to the drawings.

Embodiment 1.

Fig. 1 is a schematic view of a landing door apparatus of an elevator including an elevator panel 1 according to embodiment 1 of the present invention, as viewed from a hoistway side of the elevator. Fig. 2 is a schematic view of the elevator panel 1, and fig. 3 is a sectional view taken along the line III-III of fig. 2. Further, fig. 4 is a sectional view taken along line IV-IV of fig. 2, and fig. 5 is a sectional view taken along line V-V of fig. 2. In fig. 1, the details of the mechanism for opening and closing the landing door are omitted.

A pair of elevator panels 1 are mounted to a landing door device of an elevator shown in fig. 1. As shown in fig. 2 and 3, the elevator panel 1 is formed of a panel body 10 and a reinforcing plate 20, and a plurality of joint portions 30 are formed in the reinforcing plate 20. In fig. 1, the joints 30 are arranged in a row at 12, but the number of joints 30 may be arbitrarily increased or decreased, and a plurality of rows may be arranged.

Fig. 4 and 5 show cross sections of the joint portion 30 of the reinforcing plate 20. As shown in fig. 3 and 4, the panel body 10 has an abutment surface 10A, and the reinforcing plate 20 has an abutment surface 20A. The reinforcing plate 20 has a welding surface 30A on the abutment surface 20A. The panel main body 10 and the reinforcing plate 20 are joined by, for example, laser beam welding by a laser welder 70 shown in fig. 5.

As shown in fig. 2 to 5, an annular cutout 30C is formed around the welding surface 30A of the reinforcing plate 20 so as to surround the welding surface 30A. The cutout portion 30C is formed to penetrate the reinforcing plate 20. The welding surface 30A is connected to the reinforcing plate 20 by two connecting portions 30B. As shown in fig. 5, the two connecting portions 30B protrude in the direction of the rear surface of the contact surface 20A, and the cross section in the direction perpendicular to the contact surface 20A is formed in a semicircular shape.

Here, when welding a steel plate subjected to a plating treatment or the like, there is a possibility that the plating at the welded portion is removed and rust is generated. Therefore, after welding, the welded portion is coated to prevent rust from occurring. However, as shown in embodiment 1, when the superimposed panel body 10 and the reinforcing plate 20 are welded, it is difficult to coat the welded portion after welding.

Here, in the elevator panel 1 according to embodiment 1, the cut portion 30C is formed around the welding surface 30A of the reinforcing plate 20, and after welding, the coating material is injected into the cut portion 30C. Then, the periphery of the welded portion 30D formed by welding the panel body 10 and the welding surface 30A of the reinforcing plate 20 is covered with the coating member 50.

Thus, according to the elevator panel 1 of embodiment 1, the annular cut-out portion 30C is formed around the welding surface 30A of the reinforcing plate 20, and the coating member 50 is injected from the cut-out portion 30C. Then, the periphery of the welded portion 30D is covered with the coating member 50. Thus, even when the superimposed panel body 10 and the reinforcing plate 20 are welded, the periphery of the welded portion 30D can be coated, and the welded portion 30D can be prevented from being oxidized and rusted by contact with the outside air.

Next, a method for manufacturing the elevator panel 1 according to embodiment 1 will be described.

First, the reinforcing plate 20 is cut around the welding surface 30A formed in each joint 30, leaving two connecting portions 30B, to form an annular cut portion 30C.

Next, the panel main body 10 and the reinforcing plate 20 are superimposed so that the abutment surface 20A of the reinforcing plate 20 abuts against the abutment surface 10A of the panel main body 10.

Next, the laser beam of the laser welding machine 70 is irradiated to each welding surface 30A of the reinforcing plate 20, and the panel body 10 and the reinforcing plate 20 are welded.

Next, the coating member 50 is injected from each cut-out portion 30C formed in the reinforcing plate 20, and the periphery of the welded portion 30D is covered with the coating member 50. As described above, the elevator panel 1 according to embodiment 1 is completed.

In embodiment 1, the cut portion 30C is formed in a ring shape, but the invention is not limited thereto. For example, the cut-and-dug portion 30C may have a rectangular outer shape as in the modification shown in fig. 6. In embodiment 1, the welding surface 30A and the reinforcing plate 20 are connected by two connecting portions 30B, but the present invention is not limited thereto. For example, the connecting portion 30B may have one or three or more positions.

In embodiment 1, a paint is used as the coating member 50, but the invention is not limited thereto. For example, the coating member 50 may be an adhesive having fluidity, or may be coated by melting a thermoplastic resin.

Embodiment 2.

Fig. 7 is a diagram showing an elevator panel 2 according to embodiment 2. Fig. 8 is a cross-sectional view of the joint 31 taken along line VIII-VIII of fig. 7. The shape of the joint 31 of the elevator panel 2 of embodiment 2 is different from that of the elevator panel 1 of embodiment 1. The other structure is the same as embodiment 1.

As shown in fig. 8, an elevator panel 2 according to embodiment 2 includes a panel main body 10, a reinforcing plate 21, and a coating member 50. The reinforcing plate 21 has a contact surface 21A, and the panel body 10 has a contact surface 10A.

As shown in fig. 7 and 8, an annular V-shaped groove 31C is formed on the contact surface 21A side of the reinforcing plate 21 so as to surround the welding surface 31A. Further, one through hole 31B is formed in the circumference of the annular V-shaped groove 31C.

As described above, according to the elevator panel 2 of embodiment 2, the annular V-shaped groove 31C is formed from the abutment surface 21A side around the weld surface 31A of the reinforcing plate 21. Further, a through hole 31B is formed in the circumference of the V-shaped groove 31C. After the panel body 10 and the reinforcing plate 21 are welded, the coating member 50 is injected into the V-shaped groove 31C through the through hole 31B, and the periphery of the welded portion 31D is covered with the coating member 50. Thus, even when the superimposed panel body 10 and the reinforcing plate 21 are welded, the periphery of the welded portion 31D can be coated, and the welded portion 31D can be prevented from being oxidized and rusted by contact with the outside air.

In embodiment 2, the V-shaped groove 31C is formed in an annular shape, but the invention is not limited thereto. For example, the outer shape of the V-shaped groove 31C may be rectangular as in the modification shown in fig. 9. In embodiment 2, the through-holes 31B are formed 1 by 1 on the circumference of the V-shaped groove 31C, but the invention is not limited thereto. For example, the through-holes 31B may be formed at two or more positions on the circumference of the V-shaped groove 31C.

Embodiment 3.

Fig. 10 is a diagram showing a joint 32 of an elevator panel according to embodiment 3, and fig. 11 is a cross-sectional view taken along line XI-XI of fig. 10. The welding surface 32A of the joint portion 32 of embodiment 3 is different from the joint portion 30 of embodiment 1 in the position of the cross-sectional view of the reinforcing plate 20. The other structure is the same as embodiment 1.

When the panel body 10 and the reinforcing plate 20 are galvanized, a welding failure may occur due to a galvanizing vapor generated during welding. It is known that such a welding defect can be suppressed by providing an appropriate gap between the galvanized steel sheets to be joined.

Therefore, in the elevator panel according to embodiment 3, as shown in fig. 11, the welding surface 32A of the joint portion 32 is formed to be offset in the direction of the back surface of the abutment surface 20A. Thus, when the reinforcing plate 20 is brought into contact with the panel body 10, an appropriate gap is formed between the welding surface 32A and the contact surface 10A of the panel body 10. Then, after the panel body 10 and the reinforcing plate 20 are welded, the coating member 50 is injected from the cut portion 32C. Thus, the periphery of the welded portion 32D formed by welding the panel body 10 and the welding surface 32A of the reinforcing plate 20 can be covered with the coating member 50. Therefore, occurrence of poor welding due to the plating vapor can be suppressed, and rust of the welded portion 32D can be prevented.

Embodiment 4.

Fig. 12 is a view showing a joint 33 of an elevator panel according to embodiment 4, and fig. 13 is a cross-sectional view taken along line XIII-XIII in fig. 12. The welding surface 33A of the joint 33 in embodiment 4 is different from the joint 31 in embodiment 2 in the position in the cross-sectional view of the reinforcing plate 21. In embodiment 4, the V-shaped groove 31C is not formed in the reinforcing plate 21 as in embodiment 2. In embodiment 4, 4 through holes 33B are formed in the reinforcing plate 21. The other structure is the same as embodiment 2. In addition, the number of the through holes 33B is not limited to 4.

In the elevator panel according to embodiment 4, as shown in fig. 13, the welding surface 33A of the joint 33 is formed to be offset in the direction of the back surface of the contact surface 21A. Thus, when the reinforcing plate 21 is brought into contact with the panel body 10, an appropriate gap is formed between the welding surface 33A and the contact surface 10A of the panel body 10. After the panel body 10 and the reinforcing plate 21 are welded, the coating member 50 is injected from each through hole 33B formed in the welding surface 33A. Thus, the periphery of the welded portion 33D formed by welding the panel body 10 and the welding surface 33A of the reinforcing plate 21 can be covered with the coating member 50. Therefore, occurrence of poor welding due to the plating vapor can be suppressed, and rust of the welded portion 33D can be prevented.

Description of the reference symbols

1. 2: an elevator panel; 10: a panel main body; 20. 21: a reinforcing plate; 20A, 21A: an abutting surface; 30-33: a joint portion; 30A to 33A: welding a surface; 30B, 32B: a connecting portion; 30C, 32C: a cutting and digging part; 31B, 33B: a through hole; 31C: a V-shaped groove; 31D to 33D: welding the part; 50: coating the component; 70: laser welding machine.

Claims

1. An elevator panel, comprising:

a panel main body;

a reinforcing plate joined to the panel main body by welding; and

the coating of the component is carried out,

the reinforcing plate has:

an abutting surface abutting against the panel main body;

a welding surface formed on the abutting surface; and

a cutout portion formed around the welding surface and penetrating the reinforcing plate,

the welding surface is connected with the reinforcing plate through at least one connecting part,

the coating member is disposed around a welded portion formed by welding the panel body to the welding surface of the reinforcing plate.

2. The elevator panel of claim 1,

the cutout portion is formed annularly around the welding surface.

3. The elevator panel of claim 1,

the cutting portion has at least one circular through hole.

4. The elevator panel of any of claims 1-3,

the at least one connecting portion protrudes in a direction of a back surface of the abutment surface.

5. A method for manufacturing an elevator panel formed by welding a panel body and a reinforcing plate, wherein, in the method for manufacturing the elevator panel,

a cutting part is arranged around the welding surface of the reinforcing plate;

superposing the panel main body and the reinforcing plate;

welding the welding surfaces of the panel main body and the reinforcing plate;

and injecting a coating member from the cut portion, and covering a periphery of a welded portion formed by welding the panel body and the welding surface of the reinforcing plate with the coating member.