JPS60208590A - Elevator threshold apparatus - 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] [Field of Application of the Invention] The present invention relates to an elevator-sill device, and in particular, the surface portion having a guide groove is plastically molded with a stainless copper plate, and a separate member is provided on the back surface of the sill, and the front , relates to a sill device fixed by welding to the folded portion of the trailing edge to the back surface.

[Background of the invention]

Generally, elevator-sill systems are constructed as shown in FIGS. 1-3. The lower end of the suspended door 3 is located at the intersection of the building wall 1 and the landing floor 2, and the sill 4 is arranged so as to be flush with the surface of the landing floor 2 at a position opposite to the lower end of the door. .

This threshold 4 is attached to a mounting bracket 5 fixed to the building wall 1 with a bolt 6.
The guide groove 4A is fixed at the position facing the lower end of the door.
A guide shoe 3A attached to the lower end of the door is slid into this groove.

Aluminum, stainless steel, brass, etc. are often used as threshold materials, but recently stainless steel has been in high demand due to its design and corrosion-resistant durability.

Sills made of stainless steel are mostly formed by cutting, but in this case, the height Ho and width W of the sill 4 are
t, height HI3 of guide groove 4A. Since it is necessary to perform machining such as cutting to dimensions such as width W2 and further providing decorative grooves 4B on the sill surface, workability is poor, mass production is not possible, and the product is expensive. In addition, since it is cut from a thick plate, there is a disadvantage that the material cost is high.

[Purpose of the invention]

The object of the present invention is to provide an elevator that maintains the characteristics of stainless steel sills, is suitable for mass production, and can reduce material costs.
Located in providing sill equipment.

[Summary of the invention]

A feature of the present invention is that a separate member is attached to the back surface of a stainless steel plate formed by II processing with a gap provided to form a threshold.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 4 to 6. The sill 7 is roughly composed of a stainless steel plate part 8 and a mounting seat 11. The stainless steel plate portion 8 has a concave groove 8A in order to form a guide groove 8A for sliding the guide shoe 3A attached to the lower end of the door 3.
Continuing with the groove 8A, there is a front horizontal portion 8B and a U-shaped bent portion 8C at its tip, and behind the groove 8A, there is a rear horizontal portion 8D and a U-shaped bent portion 8E at its tip. have. These plastic workings can be easily performed by passing through forming rolls or using a press machine.

The stainless steel plate part 8 formed in this manner has a mounting seat 11 attached to its back side in the sill width direction by welding or screw tightening, thereby fixing each radical of the stainless steel plate part 8. That is, if only the stainless steel plate portion 8 is used, the dimension between the U-shaped bent portions 8G and 8E changes each time it is handled. This is because the width of the opening of the groove 8A changes, such as increasing or decreasing, and the width of the opening of the groove becomes non-uniform over the entire length of the groove 8A.

By mounting on the back side of the mounting seat 11, the dimension between the U-shaped bent portions 8C and 8E can be fixed, and
This problem was solved by adding rigidity. Further, a decorative groove 8F formed along the direction of the concave groove 8A is provided in the front and rear horizontal portions 8B of the stainless steel plate member 8 to serve as a design accent.

Further, the mounting seat 11 is provided with a hole or a nut IIA for mounting the mounting fitting 5.

When attaching the stainless steel copper plate part 8 to the mounting seat 11.

Front end U-shaped bent portion 8C1 Rear end U-shaped bent portion 8E, and bottom surface 8 of the groove 8A. By making /4 flush, even when a cart or a single person's feet are placed on the upper part of the sill 7, it will not become unstable and will be advantageous in terms of strength.

FIG. 6 is a view of the sill 7 seen from the back. By welding only two places, the front welded part 12A and the rear welded part 12B, the number of welded parts is reduced and the deformation of the sill 7 due to welding is reduced. It can be done. That is, the bottom part 8a of the groove 8A and the mounting seat 11 are not welded together. This is because when welding this part, burn marks from welding will appear on the bottom surface 8b of the groove 8A, which is inconvenient in terms of design, so it will be necessary to remove the burn marks, but the groove 8A is generally narrow. This is because the processing work is time-consuming and the cost increases, making it impossible to achieve the initial goal of low cost. In addition, the mounting seat 11
As is clear from FIG. 2, the U-shaped notch 11B is provided at the front of the front end and the U-shaped notch 11B is welded at the bottom.As is clear from FIG. (not shown) When exiting to the landing, there is a U-shaped notch 11 in the front part of the mounting seat 11 because it is a visible part, that is, a design surface.
If welding is performed without providing B, burn marks due to welding will appear on the U-shaped bent portion 8C at the front end, which is not desirable in terms of design. In this case, for the same reason that the bottom 8a of the groove 8A and the mounting seat 11 are not welded, it becomes necessary to remove the burn marks, which increases the processing cost and makes it expensive.

(Effects of the Invention) According to the present invention, it is possible to obtain an elevator-sill device that is excellent in mass production and requires low cost materials while taking advantage of the characteristics of the stainless steel sill.

[Brief explanation of drawings]

Fig. 1 is a front view of a conventional threshold device, Fig. 2 is a perspective view of Fig. 1, Fig. 3 is an enlarged view of the cross-sectional shape of the sill in Fig. 2, and Fig. 4 is an embodiment of the sill device according to the present invention. A perspective view of the example, FIG. 5 is a sectional view taken along the V-■ arrow in FIG. 4, and FIG. 6 is a Vl-V in FIG.
FIG. 7... Threshold, 8... Stainless steel plate part, 11...
Mounting seat. Agent: Patent Attorney Akio Takahashi, Figure 1, Day 3

Claims (1)

[Claims] 1. In the flooring having a guide groove for laterally guiding the opening of the door, the guide groove is provided on the surface of a stainless steel plate, and the front. The rear edge is bent at right angles in the same direction, and further bent toward the back surface, and the bottom surface of the guide groove and the front surface. An elevator sill, characterized in that the bottom surface of the bent portion to the back surface of the rear edge portion is flush with the bottom surface, a separate member is provided on the back surface of the sill, and is fixed to the bent portions of the front and rear edges to the back surface by welding. Device. 2. The elevator-sill device according to claim 1, characterized in that a decorative groove is provided in the flat portion of the stainless steel plate. 3. The elevator according to claim 1, wherein a hairline is formed in the flat surface portion of the stainless steel plate, or in the flat surface portion and the front and rear edges in parallel to the opening/closing direction of the door. Threshold device. 4. The elevator-sill device according to claim 1, wherein a hole for attaching the sill is provided in a separate member provided on the back surface of the stainless steel plate, or a nut is attached thereto.