FI114233B - Device for hanging, opening and closing a balancing door - Google Patents

Abstract

The invention relates to a device for suspending, opening and closing a balanced door, said device comprising a lever (7) between a door (1) and an upright (6), pivotally bearing-mounted to both of them, which forces the door to turn to open and closed positions while the door moves in the direction of its plane. Centrally in the top edge of the door (1) is mounted a pivot bearing (2), which has a vertical axle (2a) around which the door turns. The pivot bearing (2) is fastened to a suspension cradle (3) which is capable of moving along a horizontal track (4), the suspension cradle (3) being adapted to be moved by means of a drive mechanism (5) back and forth along the horizontal track (4). Said lever (7) comprises a toggle, which has a relative leverage of its lever arms selected in such a way that the toggle forces the door to swing to open and closed positions in response to said reciprocating movement.

Description

χ 114233

Device for hanging, opening and closing the balance door

The invention relates to a device for hanging, opening and closing a balance door according to the preamble of claim 1.

5 Such balancing doors are used in department stores and other commercial premises. As the door simultaneously moves and turns, its opening and closing motion requires less space on the side of the room.

10 The following describes the known solutions and the drawbacks associated with them.

- The weight of the door rests on the levers and pivoting takes place at the lever pivot point. In this solution, the weight of the door (80-100 kg) strains the levers and they have to be made of a really sturdy material and the bearing is subjected to a hard test, so the wear is high. When turning the door from the hinge point, the forces are great and the door machinery itself is specially constructed.

- Door hanging as above, but the door is swiveled with: - 20 sliding door automatic. Unfavorable in shape and due to suspension: high wear.

♦ · I * - The weight of the door is supported from above but the turning is complicated:; with the wheel system and the movement of the door requires a guide groove on the underside of the door opening which is very harmful because all the gravel, grit, ice, etc. impurities enter the opening and hinder the functioning of the door.

; · '- In all the above applications, the machines are electro-hydraulic,':: which makes a noticeable noise when the door is opened.

O 30

In addition, a device is known from US 4,237,655, wherein the door is suspended from above by a swivel bearing which is not in the middle of the door but near the other edge of the door. This results in a torque received by a thread connected to the lower edge of the door by a Liu flower associated with a pivot axis. This, in turn, requires a sub-guide (guiding groove) with the aforementioned disadvantages.

5

The object of the invention is to provide a lightweight and reliable device which avoids the above disadvantages.

This object is achieved by a device according to the invention, the characteristic features of which are set forth in the appended claim 1. The dependent claims disclose preferred embodiments of the details of the invention.

The advantage of the solution according to the invention is that the standard door-15 machine mechanism can be used and only lightweight bearing lever which controls the turning of the door is required, as well as center hinge bearings which are inexpensive to manufacture and very low stress forces. The door is completely silent.

In the following one embodiment of the invention will be described in more detail with reference to the accompanying drawings, in which: - Figure 1 shows a cross-section of the device according to the invention, * ·:. Figure 2 shows a door in closed and open positions and part of the devices according to the invention in connection with the door, and Figure 3 shows a front view of a double door in which the device *: '* of the invention can be applied.

30; A pivoting bearing 2 having a vertical axis 2a around which the door 1 pivots is mounted in the center of the upper edge of the door 1. The beam at the upper edge of the door 1 is 114233 3 secured, for example, by a screw 2b to the end of the shaft 2a. The swivel bearing 2, in turn, is attached to the suspension carriage 3 which can be moved along the horizontal guide 4 by sliding 8. By using two slider rollers 8, one resting on the upper profile of the guide 4 and the other on the lower profile, a robust, non-oscillating ratchet 5 is obtained. The slider rollers 8 have grooves which engage the protrusions of the guide 4.

The suspension carriage 3 is arranged by the transmission device 5 to be reciprocated along the horizontal guide 4. The transmission device 5 is preferably an endless belt or chain. When used in conjunction with double-door doors, one of the hanging carriages 3 of the doors 1 is secured to the upper passage of the belt 5 by the securing device 5b and the other to the lower passage by the securing device 5a. The motor 9 drives the pulley around which the belt 5 is guided via a reduction gear 10.

Figure 3 shows how the vertical beams 6 form the door opening frames.

Fig. 2 shows the angular lever 7 rotatably mounted between the door 1 and the vertical beam 6, which forces the door to open and close when the swivel bearing 2 is moved back and forth along the horizontal guide 4 parallel to the planes of the doors 1 1 are closed. The lever 7 is shaped as an angle lever so that the opening force of the pivoting movement is obtained when the door is opened. Angle lever 7 is mounted on door 1 with swivel bearings: · 20 with runner 7b, whose position relative to door 1 remains unchanged. Also, the bearing point 7a of the other end of the angle lever 7 in the vertical beam 6 remains in place, whereby the lever ratios of the angle lever 7 can influence the door to turn 90 ° as the swivel bearing 2 moves to the vertical beam 6. Preferably, the lever ratio of the lever arm vi is about 4.5. Advantageously, the lever arms 7 are in each of 25 • positions adjacent to the upper and lower ends of the vertical beam 6 and to the upper and lower edges of the door 1 respectively.

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Claims (5)

4, 114233 A device for hanging, opening and closing a balance door, comprising a lever (7) pivotally mounted between the door (1) and the vertical beam (6), forcing the door to open and close while the door moves in the direction of its plane, a pivot bearing (2) mounted on the upper edge of the door (1) having a vertical axis (2a) around which the door pivots, a suspension carriage (3) to which the pivoting bearing (2) is attached and which can move along the horizontal line (4) 5) with which the suspension carriage (3) 10 is arranged to be reciprocally displaced along the horizontal guide (4), characterized in that the swivel bearing (2) is fixed in the middle region of the upper edge of the door and said lever (7) is an angle lever; that the corner lever forces the door to open and close by the effect of said reciprocating movement, and that there are ai-15 two angles at the same edge pua (7) spaced vertically apart. Device according to Claim 1, characterized in that the suspension carriage (3) is supported by a sliding roller (8) on the horizontal guide (4). 20 Device according to claim 1 or 2, characterized in that the transfer device (5) is an endless belt or chain. A device for hanging, opening and closing both doors of a double door according to claim 3, characterized in that the door of the double door; one of the suspension carriages (3) is attached to the upper run and the other to the lower run of the belt (5). A device according to any one of claims 1 to 4, characterized in that the gold. The lever ratio of 30 mavps is about 4.5. f I »• t • · · •» t • · 1 · • · a · k 5 114233