JPS6147796B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an escalator balustrade constructed by manufacturing and assembling a movable handrail frame, a hem deck, etc. by bending thin plates such as stainless steel.

Generally, in the handrail of an escalator, the movable handrail frame, hem deck, etc. are immovable.
There is a level difference in the above-mentioned immovable handrail frame or hem deck that could cause passengers' luggage, etc., which move in synchronization with the handrail and move at a speed of about 30 meters per minute, to collide with or get caught. When you are there,
Passengers may be exposed to discomfort or danger;
For this reason, it is necessary to eliminate steps that face the passenger's movement direction as much as possible, and at the same time, it is better to have no steps from a design standpoint. Therefore, in the past, movable handrail frames and hem decks, etc., were often manufactured and assembled using extruded aluminum shapes, and this improved dimensional accuracy and eliminated the differences in the individual joints of the movable handrail frames and hem decks. However, the difference in level between the movable handrail frame and the end of the hem deck is large, and since it is made of extruded aluminum, it is easily damaged by contact with baggage or by children riding on it with footwear. After a few years, it became unsightly and its design value was halved. Therefore, recently, the thickness 1.5 which is strong in scratch resistance is
It has been considered to fabricate moving handrail frames, hem decks, etc. by bending and forming thin stainless steel sheets of about mm size, and assembling the balustrades, but although this improves scratch resistance, bending the thin sheets In this case, it was difficult to reduce the height difference, and the problem was that it lacked safety and design.

This invention was made in view of the above circumstances, and its purpose is not only to create a handrail frame and hem deck by bending thin plates, but also to create a handrail with excellent scratch resistance. The aim is to provide something with very few steps and excellent safety and design.

An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a perspective view showing the lower floor side of the escalator, and Fig. 2 is a sectional view taken along the line - in Fig. 1. ) A movable handrail installed to move in synchronization with the step 1 with respect to a handrail A disposed on the escalator, the handrail A being a movable handrail frame 3 disposed between the upper and lower floor ends of the escalator; It consists of an inner hem deck 4, an outer hem deck 5, a glass panel 6, a skirt guard 7, etc. arranged between both ends of the movable handrail frame 3. Further, 8 is a board for passengers to get on and off.

In such escalators, passengers usually grab the handrail 2 with their hands and try to get on the steps 1 closer to the center, so they do not come into contact with the handrail frame 3 or the inner hem deck 4. Since people often ride while holding the handrail, it is important to hold the handrail frame 3 near the A part of the movable handrail frame 3, which is arranged with a radius of R ₁ at the end of the upper and lower floors, or conversely, when getting off, near the B part of the movable handrail frame 3. Clothes, baggage, etc. come in contact with the end connecting portion C of the movable handrail frame 3 and inner hem deck 4, and furthermore, the skirt guard 7 touches the step 1 while it is in a horizontal position. The distance E between the lower surface of the inner hem deck 4, which protrudes by the dimension D, changes to a narrower distance E', and the footwear F is caught in the joint G of the movable handrail frame 3 and the joint between the inner hem deck 4. Hands, clothes, baggage, etc. may come into contact with H etc.
If each of the contact portions is in the form of a step facing the direction of movement, it will give passengers a feeling of discomfort or discomfort to varying degrees, and at the same time, the design will be impaired.

Therefore, in this invention, as shown in the figure, the inner hem deck 4 is made of a thin stainless steel plate with a thickness of about 1.5 mm.
An inclined upper side surface 4a that is at an angle of α with respect to the vertical glass panel 6, a vertical side surface 4b that continues to the inclined end of this inclined upper side surface 4a, and a vertical side surface 4b that extends from the lower end of this vertical side surface 4b to the above-mentioned inclined upper side surface 4a. β in the opposite direction
It is bent into a polygonal cross-sectional shape consisting of an inclined lower side surface 4c that extends up to the skirt guard 7 at an angle of ' is set so that the above-mentioned cross-sectional polygonal shape remains as is, so that only the sloped upper side surface 4a' becomes gradually narrower so as not to create a step, that is, the width of the vertical side surface 4b' and the sloped lower side surface 4c' remains the same as above, Only the inclined upper side surface 4a' is bent into a triangular shape that gradually becomes narrower.

On the other hand, the handrail frame 3, like the inner hem deck 4, is made of a thin stainless steel plate of about 1.5 mm and is bent to have the same cross-sectional shape throughout its longitudinal direction, as shown in Fig. 2. The overall shape of the groove is approximately U-shaped in cross section, and the step side part of the handrail frame 3 closely follows the shape of the tip of the end hem deck 4', which gradually becomes narrower, of the inner hem deck 4. It has a polygonal cross-sectional shape consisting of an inclined inner circumferential side surface 3a, a vertical intermediate side surface 3b, and an inclined outer circumferential side surface 3c that are inscribed together. That is, the inclined inner circumferential side surface 3a is the inclined upper side surface 4a, 4 of the inner hem deck 4, 4'.
The inclined outer circumferential side surface 3c, which is inclined at the same angle as a' and placed between the vertical intermediate side surfaces 3b, is arranged so as to be substantially symmetrical with the inclined inner circumferential side surface 3a.
The slope is the same as the sloped lower side surfaces 4c and 4c' of the lower side surfaces 4c and 4c'.

And the end hem deck 4' of the inner hem deck 4
The side part of the step having a polygonal cross-section of the handrail frame 3 is connected to the narrow end of the handrail frame 3 in a close contact with the narrow end thereof. In addition, a joint (not shown) between the inner hem decks 4 and a joint H with the end hem deck 4',
The joints G of the handrail frames 3 are connected by welding, and the difference in level is removed by filing. By doing this, the inner hem deck 4,
4' and the step side part of the handrail frame 3 from the step 1 side, the hem deck 4' at the connecting part C is visible.
The polygonal cross-sectional surface has no steps other than a minute step corresponding to the plate thickness t, and is connected in an endless manner.

Therefore, in the parapet A with the above configuration, frame 3
The side part of the step and the inner hem decks 4, 4' are connected in an endless manner with a polygonal cross-sectional surface with no steps other than a minute step corresponding to the plate thickness t at the connecting part, so that the shape design is improved. Not only is it highly effective, but since it is bent and formed from thin stainless steel plates, it has excellent scratch resistance and can maintain high design value over a long period of time.
In addition, the polygonal cross-sectional surface is designed to be endless to prevent passengers' hands, hips, clothes, baggage, etc. from coming into contact with parts A, B, H, and G, or footwear F being caught between parts E', etc. Since it is maintained in the same shape, there is less impact, and the connection part C
Even in this case, there is no problem because the difference in height is as small as 1.5 mm, which is called plate thickness t, and does not cause discomfort or a sense of danger to passengers.

As shown in FIG. 2, the movable handrail frame 3 may also have a cross-sectional shape of the side with the outer foot deck 5 in a polygonal shape with an inclined surface, similar to the side of the step, which improves the design effect. You can further improve your skills.

In particular, when bending and forming the handrail frame 3 and the inner hem decks 4, 4' from a thin plate, a cut of 1/3 to 1/5 of the plate thickness is made at the inner corner K of each bent part. By inserting it in advance by machining such as lathe, it is made easier to bend and improves dimensional accuracy. In other words, when press-forming a thin stainless steel plate with a thickness of about 1.5 mm into the above-mentioned polygonal cross-sectional shape, the inner corner K of the bent part is generally bent to have the curvature of the thick part of the plate. , the width of each side 3a, 3b, 3c, etc. of the handrail frame 3 is about 10 mm, so bulges inevitably occur, and the radius R ₁ (about 300 mm) of the upper and lower floor side ends of the handrail frame 3 is Since it is smaller than the radius R ₂ (approximately 200 mm) of the lower curved portion, the bulge increases further when bent.
These bulging phenomena also apply to the inner hem decks 4, 4'. Due to these bulges and the resulting dimensional errors, the joint G between the handrail frames 3, the joint H between the inner hem decks 4 and the end hem decks 4', or the joints H between the handrail frames 3 and the end hem decks 4'. Differences in mutual surfaces and corners are likely to occur in the connecting portion C, and these discrepancies appear as steps. As a solution to this problem, a notch is made as described above at the position of the inner corner K of the bent part at the board cutting stage to make it easier to bend and improve dimensional accuracy. This eliminates the occurrence of steps due to discrepancies in the H and connecting parts C, resulting in a polygonal surface that is both safe and sharp in terms of design, and brings out the beauty of the form through the reflection of light. become.

Since this invention has been made as detailed above, by bending and forming the movable handrail and the inner hem deck from thin plates, it is possible to obtain something that is more scratch resistant than those made of extruded aluminum, etc. It has very few steps, is extremely safe and has excellent design, and has great practical effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention.
The figure is a partial perspective view, and FIG. 2 is a sectional view taken along the line -- in FIG. 1. 1... Steps, 2... Movable handrail, A... Balustrade, 3... Movable handrail frame, 3a... Inclined inner peripheral side surface, 3b...
Vertical intermediate side surface, 3c... inclined outer peripheral side surface, 4... inner hem deck, 4'... end hem deck, 4a, 4a'... inclined upper side surface, 4b, 4b'... vertical side surface, 4c, 4c'... inclined lower side surface, 5... Outer hem deck, 6... Balustrade panel,
7...Skirt guard, C...Connection part, t...Plate thickness.

Claims (1)

[Claims] 1. A movable handrail frame 3 arranged from the upper side of the parapet panel 6 to the lower side of both ends of the upper and lower floors.
In an escalator balustrade constructed by bending thin plates and manufacturing and assembling an inner hem deck 4 disposed on the lower side of the balustrade panel 6 between both ends of the movable handrail frame 3, the inner side The hem deck 4 has an inclined upper side surface 4a arranged diagonally from the lower side of the parapet panel 6 toward the step side, a vertical side surface 4b continuous to the lower end thereof, and an inclined side surface 4b opposite to the inclined upper side surface 4a from the lower end. Skirt guard 7
It has a polygonal cross-sectional shape consisting of an inclined lower side surface 4c extending up to the upper and lower floor side ends 4' of the inner hem deck 4, and the inclined upper side surface 4a' gradually narrows in width, and the movable handrail frame 3 has a generally U-shaped cross section as a whole, and the step side part is formed into an inclined inner circumferential side surface 3a and a vertical intermediate side surface 3b in accordance with the tip cross-sectional shape of the upper and lower side ends 4' of the inner hem deck 4. It has a polygonal cross-sectional shape consisting of an inclined outer circumferential side surface 3c,
The movable handrail frame 3 has a polygonal cross-sectional step side portion that is inclose contact with the end of the inner hem deck 4, thereby connecting the movable handrail frame 3 and the inner hem deck 4 to the inner side of their connecting portion. An escalator railing characterized in that it is constructed in an endless manner with no steps other than the thickness of the hem deck.