KR100828278B1 - Coupling device for elevator car doors and landing doors - Google Patents

Abstract

 The present invention drives the landing door 13 in front of the floor landing by a coupling plate 11 which is integral with and integral with the car door 5 and engages with a plurality of cams 3 and sequentially drives the car. To a coupling device for an elevator car 5 and a landing door 13 of a kind that mechanically and electronically locks the coupling plate on the door to allow a plurality of cams, the plurality of cams 3 being on the car door 5. A variable distance from each other and movably mounted, independent of the car door drive belt 19 and comprising a part 7 for driving a plurality of cams 3 at a variable distance, the part having a car door 5 And is connected to the drive belt 19 and to one of the plurality of cams 3, the component 7 being able to replace the other cam 3 with a large displacement with respect to the small overrun drive of the belt 19. Drive the cam 3 toward or away from another cam. A lever actuation is applied to the cam 3 to allow unlocking of the coupling plate 11 and landing door 13 drive coupling respectively when the door is opened and to lock the drive coupling when the door is closed. It includes a plurality of drive cams (3).

Car Door, Landing Door, Drive Coupling Device

Description

Coupling Device for Elevator Car Door and Landing Door {COUPLING DEVICE FOR ELEVATOR CAR DOORS AND LANDING DOORS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupling device for elevator car doors and landing doors, and in particular, to a coupling device for car and landing doors in the form of a door drive that overruns in door opening and closing.

This type of coupling device for a car and landing door is connected to the car door drive belt and the plurality of landing door drive cams, and spaces the plurality of landing door drive cams along the door opening or faces each other upon the door closing. It is known to use a door coupling cam hinge component that is driven to. However, such parts are subject to high torsional stresses, which can cause sudden damage when driving a plurality of cams on the one hand and driving the door on the other hand, especially when the door panel is heavy. In addition, the general T-shaped design of the part requires a large overrun of the belt at low speeds to drive the plurality of cams, thereby enabling mechanical and electrical locking or unlocking of the door coupling plate. This overrun time for locking or unlocking is relatively long, adding approximately 0.5 to 1 second to the running time of the door panel, which is disadvantageous not only in terms of waiting time and running time of the user, but also for elevator traffic management.

The present invention suppresses these drawbacks and incorporates a plurality of cams integrated with the car door and driving the landing door, and mounted on the car door, connected to a drive belt, connected to one of the plurality of cams, and driving the plurality of cams at variable distances. And a plurality of cams are movably mounted with a variable distance from each other on the car door, independently of the car door drive belt, the parts having a large displacement compared to a small overdriving drive of the belt. Lever actuation on the cam to drive the cam toward or away from the other cam, allowing to unlock the coupling plate and landing door drive coupling respectively when the door is opened and to lock the drive coupling when the door is closed. An object of the present invention is to provide a coupling device for an elevator car door and a landing door.

The component for driving the plurality of cams apart is preferably a connecting rod hinged on the car door support trolley panel and hinged to the door drive belt and the drive cam by an attachment tab, the hinge of the connecting rod on the trolley. The ratio between the distance from the connecting rod attachment point to the belt on the point and the distance from the connecting rod hinge point to the attachment point on the cam is mostly less than 1, apparently varying with the length of the connecting rod, and generally 1 / Less than 3 and generally equal to approximately 7/30, a 7 mm overrun of the belt to open or close the door drives the plurality of cams by an additional 30 mm each to or from each other.

The open position of the plurality of cams, which mechanically and electrically unlock the landing door coupling plate, is advantageously locked at a position with a suitable distance between the plurality of cams, thereby allowing the drive cam or cam drive connecting rod to reach the final drive position. The plate remains unlocked by a locking element that engages mechanically, and the cam open position is preferably in place by a final position stop against the connecting rod and by an associated hook element with its own snap engagement. It locks and locks the connecting rod in place, and the element engages as soon as the car door drive belt is driven over the set overrun length as the door is opened and closed.

The plurality of cams are preferably on the car door with a variable distance to each other by a set of two upper and lower connecting rods connected to the car door at the center and to the plurality of cams at the end and hinged in a vertical parallelogram. Mobilely mounted, the displacement of the cam connected to the drive rod is adjusted to the displacement of the corresponding end hinge point of the cam drive connecting rod.

The cam drive connecting rod can be replaced by a set of two connecting rods hinged to each other, the first rod is connected to the drive belt and hinged to the car door and the other to the drive cam, the drive cam is cam Make drive adjustment easy.

The landing door coupling plate and the locking plate are conventional, two rollers each rotating on respective upper sides of the plurality of cams, which act when the plurality of cams are in close proximity when the door is closed and the plurality of doors as the door is opened. A capture takeout element for the landing door that is released when the cams move apart and an electrical landing door lock contact element that connects the elevator car control circuitry and operates in the same manner as the takeout takeout element.

The invention also deals with an elevator comprising the car door and landing door coupling device described above.

The invention is shown below by reference to a preferred embodiment of the invention and in the accompanying drawings,

1 is a schematic view of a landing door coupling device and a car for an elevator in the operating coupling position (when the door is open) according to the invention.

FIG. 2 is a view similar to FIG. 1 showing the device in an uncoupled position with a locking plate locked to close the door. FIG.

Figure 3 shows the device during overrun of the door drive belt while uncoupled.

4 is a view of the coupling plate in the unlocked position.

With reference to the drawings, in particular FIGS. 1 to 3, the coupling device 1 for an elevator car and landing door according to the invention is hingedly mounted and has two verticals with variable spacing on the elevator car door 5. Combined and landing on rectangular cams 3, drive connecting rod 7 for driving a plurality of cams 3 with variable spacing, cam position locking device 9, and a plurality of cams 3 It is essentially attached to the door 13 and essentially comprises a coupling plate 11 (Fig. 4) arranged opposite the car door 5 at each landing stop of the car.

The rectangular plurality of cams 3 are more precisely mounted to the upper trolley panel 15 or the "car door hanger" which is integral with the car door and supports the car door panel, the trolley panel being arranged over the opening of the car which is integral. It is driven to run on an upper horizontal rail (not shown). These plurality of cams 3 are mounted to the trolley panel by two identical cam connecting rods 17 hinged to the trolley panel at the center in a parallelogram arrangement and hinged to the plurality of cams 3 at the ends. Thus, when the plurality of cams 3 are supported in a parallel arrangement with variable spacing and are connected to each other by the two parallel cam connecting rods 17, the spacing of the plurality of cams changes according to the orientation of the connecting rods. , The orientation of the connecting rod is generally less than 45 ° with respect to the vertical when the cam is at maximum distance and 30 ° with respect to the vertical at minimum distance.

The drive connecting rod 7 is slightly longer than the cam connecting rod 17 and is connected to the drive belt 19 of the car door actuator by a hinged attachment tab 21 and generally on top of the trolley panel 15. It is hinged at one third of its length and is attached by a lateral tab 23 which is hinged to the one of the two cams 3 to the right in the figure. This drive connecting rod 7 is generally parallel to the cam connecting rod 17. The ratio of the distance from the hinge point to the terminal hinge points is about half the distance from the hinge point to the cam, which is about twice the distance from the hinge point to the belt. This arrangement allows to increase the displacement of the plurality of cams 3 spaced from each other and facing each other with respect to the displacement of the belt 19 during the overtraveling of the belt at a reduced speed, so that the doors have their maximum spacing (Fig. When opened in 1), the plurality of cams are driven to space away from their proximity configuration (FIG. 2) (FIG. 3), in contrast to the configuration of FIG. 2 where the car door 5 is stopped in contact and the belt overruns. When close, drive the plurality of cams closer. In this process, it is almost time consuming to drive the unlocking of the coupling plate 11 apart from the plurality of cams to allow the open drive of the car and landing doors 5 and 13, and such displacements from each other While almost instantaneous, the conventional coupling device described above required 0.5 to 1 second, and as described below, a plurality of cams were conversed with each other when the door was closed to allow fast mechanical and electronic locking of the coupling plate. It is required to drive close to.

The cam position locking device 9 consists of a foam pad attached to one of the plurality of cams 3 to form a contact for the other cam at the minimum distance position (16 mm), the maximum distance between the plurality of cams (46 mm). Made by a set of rubber pad stops 27 supported against the low drive connecting rods 7, below the ends of the drive connecting rods 7 for supporting the drive rods in place relative to the stops 27. In the latch element 29 is hooked. The latch element 29 is mounted to rotate on the trolley panel and is returned by a coil spring on its axis and rotates towards the drive connecting rod 7 in a hooked position, while the car frame, more precisely the car linch The stationary rod 31, which is integral with the lintel, contacts the upper end away from the hook of the latch element as the door is closed to unlock and move the plurality of cams towards each other.

The openings of the plurality of cams are laterally arranged with respect to the plurality of cams 3 and are assisted by a coil spring 33 attached to the trolley panel 15 and connected to one of the plurality of cams. This spring 33 also occupies the remaining clearance of the connecting rods 7 and 17, thereby preventing operating vibration and noise.

The coupling plate 11 shown in Fig. 4 is conventional. The coupling plate 11 is hinged onto the landing door 13 using a movable roller 37 which is integral with the fixed roller 35 and the hinge component 39, and the coupling plate 11 is balanced at one end. The weight 41 and at the opposite end support the electrical contact element 43, the counterweight 41 which connects the hinge part 39 and the roller 37 with the fixing roller 35 and gravity to an electrical receptacle ( While brought close to the electrical contact element 43 of the fixing roller locked to connect to the circuit on 45, its lateral cut hook component 47 is coupled to the complementary fixing hook 49. The notched hook part 47 and the complementary fastening hook 49 constitute a capture ejection element.

The rollers 35, 37 approach either side of the plurality of cams 3, and when the plurality of cams move away from each other, the hinge part 39 contacts the corresponding cam 3 and is displaced by a roller ( Retracted by 37), the counterweight 41 moves upward again. The hinge part releases the hook 49 and removes the electrical contact element 43 from the receptacle to open the car control circuit, so that the coupling plate 11 is unlocked so that the landing door is connected to the car door simultaneously with no clearance at the car door. Allow to move oppositely.

Operation of the apparatus will be described below and is a continuation of the foregoing description.

The door is opened by the unlocked landing door coupling plate 11 (Fig. 4) and driven together with each other (see Fig. 1), starting from the coupling state of the car and the landing door, so that the plurality of cams are separated and the door closing movement is performed. Towards, the coupling device changes its state with respect to the door closing when the car door 5 stops contacting and closing. At that point, the cams move close to approximately 30 mm relative to each other until the cams contact on the pad 25 (FIG. 2), and the belt 19 during overrun has a small distance in the direction in which the plurality of cams are close to each other. At low speed over about 5 to 10 mm, drive connecting rod 7 is driven (Fig. 3). Thus, the coupling plate is mechanically locked by the hook 47, which shields the landing door with its frame and by means of its end electrical contact element 43 to allow control of further displacement of the elevator car. Close the control circuit.

The door is opened in the reverse order of the above-described order.

It is obvious that the invention is not limited to the above-described exemplary embodiments, and variations may be designed with respect to the possibility of an arrangement other than a plurality of cams on the car door, for example only one movable cam is connected to the drive rod, The possibility of locking the two cams directly in their diffusion spaced position or the use of a drive rod consisting of two jointed parts, one hinged to the drive belt and the car door and the other to the drive cam.

Claims (10)

A plurality of cams integral with the car door and driving the landing door, and mounted on the car door and connected to a drive belt and connected to one of the plurality of cams to drive the plurality of cams at variable distances, The plurality of cams are movably mounted with a variable distance from each other on the car door, independently from the car door drive belt, The component applies lever actuation to the cam to drive the cam towards or away from the other cam with a large displacement relative to a small overdrive drive of the belt, locking the coupling plate and landing door drive coupling respectively when the door is opened. Coupling arrangements for elevator car doors and landing doors that allow release and lock the drive coupling when the door is closed. 2. The elevator car door of claim 1, wherein the component for driving the plurality of cams apart is an elevator car door hinged to the car door supporting the trolley panel and a door rod and a connecting rod hinged to the drive cam by an attachment tab. And a coupling device for the landing door. The ratio between the distance from the drive connecting rod attachment point to the belt on the hinge point of the drive connecting rod on the trolley panel and the distance from the drive connecting rod hinge point to the attachment point on the cam is greater than one. Compact, variable coupling device for elevator car doors and landing doors, depending on the length of the driving connecting rod. 4. The elevator car door of claim 3, wherein the ratio of distances is equal to 7/30, such that an over 7 mm travel of the belt to the opening or closing of the door drives the plurality of cams to each other or from each other by an additional 30 mm. And a coupling device for the landing door. 3. The drive cam or cam according to claim 2, wherein the open position of the plurality of cams that mechanically and electrically unlock the coupling plate is advantageously locked at a position having an appropriate distance between the plurality of cams, thereby reaching the final drive position. A coupling device for elevator car doors and landing doors that keeps the plate unlocked by a locking element that mechanically couples a drive connecting rod. 6. The cam opening position according to claim 5, wherein the cam open position is locked in place by a final position stop on the drive connecting rod and by an associated hook element with its own snap engagement, locking the drive connecting rod in place. The coupling device for elevator car doors and landing doors are coupled as soon as the car door drive belt is driven beyond the set overrun length as the door is opened and closed. 2. The cam according to claim 1, wherein the plurality of cams have a variable distance to each other by a set of two upper and lower cam connecting rods hinged in a vertical parallelogram and connected to the car door at the center and to the plurality of cams at the end. A coupling device for elevator car doors and landing doors, which is movably mounted on the car door, wherein the displacement of the cam connected to the drive connecting rod is adjusted to the displacement of the corresponding end hinge point of the drive connecting rod of the cam. 2. The drive connecting rod of claim 1, wherein the drive connecting rods of the cam can be replaced by a set of two connecting rods hinged to each other, the first rod hinged to the car door and connected to the drive belt and the second rod driven A coupling device for elevator car doors and landing doors that is linked to the cam and the drive cam facilitates cam drive adjustment. 2. A landing door coupling plate, each rotating on an opposing upper side of the plurality of cams, acts when the plurality of cams are in close proximity when the door is closed, and the plurality of cams move apart as the door is opened. A coupling device for landing car landing doors and landing door locking contact elements, which is an electrical landing door locking contact element which connects the elevator car control circuit and operates in the same manner as the capture take-out element, which is released when the landing door is released. An elevator comprising a coupling device for a car door and a landing door according to claim 1.

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