JPS5819589B2 - elevator door rail - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improvement in an elevator door rail.

First, a conventional hall apparatus will be explained with reference to FIGS. 1 and 2.

In the figure, 1 and 2 are three-sided frames that constitute the entrance/exit 3, 1 is a column that forms the vertical part, 2 is an upper frame that connects the upper parts of the two columns 1, and 4 is an elevator above the upper frame 2. road wall, 5 is an L-shaped support fitting fixed to a foundation bolt 6 installed in the hoistway wall 4, 7 is a hanging wheel case formed in an L-shape, and the upper side 7
a is fixed to the support fitting 5 with bolts 8.

Further, the vertical side 7b of the hanging wheel case 7 hangs down along the hoistway wall 4, and a part thereof has a chevron-shaped protrusion along the horizontal direction for mounting the rail 9 on the upper side 7c, the rail mounting surface 7d, and the lower side 7e. Holes 7f for tightening the rails 9 at appropriate intervals are formed in the rail mounting surface 7d, and nuts 10 are welded to the back surface.

The rail 9 is cold drawn to have a square cross-sectional shape, and counterbores 9a and holes 9b are formed at the same pitch as the holes 7f on the rail mounting surface 7d.
attached to d.

12 is formed in an L-shape, one side is welded into the groove of the upper frame 2, the other side is welded to the groove wall of the upper frame 2, extends upward, and connects to the lower end of the vertical side 7b of the suspension wheel case 7 with a bolt. This is a mounting plate that is fixed with 13.

Reference numeral 14 denotes a roller that moves on the rail 9 and is pivotally attached to a hanging plate 15, which is connected to the upper end of the landing door 17 by bolts 16.

Numeral 18 is a steady roller which prevents the landing door 17 from swinging abnormally during opening/closing operations and is pivotally connected to the hanging plate 15.

Reference numeral 19 denotes a cover that is attached to the tip of the upper side 7a of the suspension wheel case 7 with bolts 20 and covers the above-mentioned mechanism above the landing door 17.

The rail 9 in the above configuration has the following drawbacks.

(1) The product cost is high because the rail material is a cold-drawn product with a special shape.

(11) It is heavy because it is a solid material.

Song) It takes a lot of time to counterbore the head of the bolt and drill the hole for the bolt to pass through.

G11D (Since the processing of the track order is done using a drilling machine, errors in pitch and straightness are likely to occur, and corrections are often required when tightening with the rail mounting surface.

In order to solve the above-mentioned problems, this invention manufactures the rail body by bending and forming a band-shaped steel plate, reduces weight and improves productivity, and also press-forms the tightening holes in the suspension wheel case to increase productivity. The aim is to improve processing accuracy and reduce assembly work time.

Furthermore, it is also possible to significantly reduce the rigidity of the rail body by utilizing the rigidity of the hanging wheel case.

An embodiment of the present invention will be described below with reference to FIG.

In the figure, the same reference numerals as those in FIGS. 1 and 2 indicate the same parts, and 21 is a steel plate molded rail, with a rolling surface 21a of the roller 14, a rolling surface 21b of the steady rest roller 18, and a recess 21c for sinking the head of the port 11. The cross-sectional shape is 3-shaped so as to have open ends 21d and 21e, and the width of the opening is made to be the same as the width of the rail mounting surface 7d of the suspension wheel case 7.

Further, holes 21f are press-processed on the bottom surface of the recess 21c at the same pitch as the holes 7f formed on the rail mounting surface 7d of the suspension wheel case 7.

By tightening the rail 21 in the above state to the hanging wheel case 7 by the port 11, the opening end 21d and the upper side 7c of the horizontal protrusion are brought into contact, and the opening end 21e and the lower side 7e of the horizontal protrusion are in contact with each other, and the rigidity of the rail portion is equal to that of the rail 21 alone. Rigidity and horizontal protrusion 7
Since the rigidities of c, 7a, and 7e are added, rail 2
1 can also be made of thin steel plate.

Nao, the width dimension of the opening of the rail 21 is the rail mounting surface 7d.
If the width of the rail 21 is slightly larger than the width of the rail 21, care should be taken so that the opening end 21d of the rail 21 and the upper side IC of the horizontal protrusion are in contact with each other.

It should be noted that the embodiments of the present invention, which have been described in connection with the hall system, can easily be applied to the heel system.

As explained above, this invention improves productivity, processing accuracy, reduces weight, and significantly reduces total cost by molding the rail with a steel plate and further contributing the rigidity of the horizontal protrusion of the hanging wheel case to the rail part. It has the effect of being able to be measured.

[Brief explanation of drawings]

Figure 1 is a front view of the main part of the door rail on the hoistway side of a conventional elevator landing, Figure 2 is a sectional view taken along the line ■-■ in Figure 1, and Figure 3
The figure is a cross-sectional view showing an embodiment of the elevator door rail according to the present invention, and is a second solid phase diagram. Hole, 11 is bolt, 14
is a roller, 15 is a hanging plate, 17 is a landing door, 21 is a rail, 21a, 21b are roller rolling surfaces, 21c is a recess, 2
1d and 21e are open ends, and 22 is a rail.

Claims (1)

[Claims] 1. A surface part on which a roller pivotally attached to a hanging plate connected to the upper end of the door rolls, a surface part in contact with a vertical surface of a rail mounting part having a chevron-shaped cross section along the horizontal direction, and a chevron-shaped projection of the rail mounting part. An elevator door rail 0 characterized in that the rail has an open end touching at least the upper side of the shape and is constructed by bending a band-shaped steel plate.