MXPA97000541A - Door electric operator with rotary drive and panel lock directly driven by the impuls - Google Patents

Abstract

The present invention relates to a rotary helical drive and an actuator arranged horizontally on a beretura in a side wall of a passenger vehicle, the actuator includes a drive nut connected to a setting panel for reciprocal movement on and in moving away from the opening of the side wall, whereby the opening in the side wall is opened and closed, and a lock or lock actuated by the helical drive to hold the panel in a closed and locked position on the opening in the side wall, the blocker comprises: means for rotating the helical drive, a locking cam attached and rotating the helical drive with one end, a locking actuator pin on the locking cam, the locking actuator pin extending inwardly and along the helical drive, a first detent means in the drive nut, the first reliable means or advances towards the block actuator pin with rotation of the helical drive, the rotation moves the door panel from the open position to the closed position over the opening in the side wall, and a second detent means on a base plate, the which is actuated by the first detent means and includes a panel locking member, the panel locking member coact with the panel to retain it in the closed position when the second detent means is actuated; The actuator advances the thrust nut to a closed door position and the locking actuator pin drives the first latch means which actuates the second latch means, whereby the panel locking member keeps the panel in the closed position.

Description

ELECTRIC DOOR OPERATOR THAT TENNK ROTATORY DRIVE AND PANEL RTflQUBO DIRECTLY TMPUT.SADA BY DRIVING BACKGROUND OF THE INVENTION This application claims the benefit of United States Provisional Application No. 60/010310, filed on January 22, 1996. The lock or lock presented is an improvement over the operator presented in the U.S. patent ,341,598 with the same inventor and assignee. The specification and claims of U.S. Patent 5,341,598 are incorporated herein by reference. The present invention relates to electric door operators used in mass transit vehicles such as subway cars and light rail vehicles. Although the operator presented in U.S. Patent 5,341,598, works satisfactorily and is in use the increased emphasis on the confidence of the equipment and the reduction of accidents for passengers has created the need for means to maintain the vehicle door panels directly in a closed position. The lock presented here fulfills the aforementioned objectives by providing a direct door panel lock that passes intermediate portions of the door / operator panel structure. The blockage presented here further enhances the assurance that the wagon door panels are kept in the closed position even if the primary locking structure has deteriorated or the main structure may have failed. Therefore, it is an object of the invention presented herein to provide a passenger door panel lock or lock used in mass transit vehicles, wherein the door panels are directly held closed by means operated by the operator. It is another object of the invention to provide a passenger door panel lock in mass transit vehicles, wherein the locking member retains the vehicle doors in a closed position, having a minimum number of components between the operator and the passenger member. blocking. It is a further object of the invention to provide a lock or panel lock for passenger doors in vehicles of mass transit, wherein the panel locking member, when operated, is mechanically isolated from the actuating operator. A direct panel lock according to the invention uses the precise relationship between the helical door drive member rotation and the position of the driven door panel. This relationship between the rotating drive member and the location of the door panel allows the incorporation of an extremely simple and highly reliable method of low cost to block the direct panel in electric door systems in vehicles.

As shown, the locking members are driven by the rotary helical pulse only when the driven panel advances along the helical driving member to a position, where the door panel with the door panels is closed. The linearly advancing locking member drives an auxiliary locking structure incorporating a latching mechanism resulting in a cross-over resulting in a lock action from non-locked to locked with a predetermined number of degrees in the rotation of the driving member. The locking member employed is a simple fork that operates a horizontal axis longitudinally joined and parallel to the drive member and fixed to the operator's base plate. A simple locking lever moves to a position behind the panel or to a hanging structure only in its closed position. The panel protection and locking position ensure that the locking member is positioned correctly before power is applied to the vehicle's drive system. Stopping the locking member in a closed position is also used to provide a signal indicating the closed and locked state of the door panel. BRIEF DESCRIPTION OF THE DRAWINGS Other objects and advantages of the invention will be apparent upon reading the following detailed description, and referring to the accompanying drawings.

Figure 1 is a plan view of a typical application of the operator described herein, when operating dual doors in a transport vehicle, particularly showing the wall lock lever in a position in which the door is closed and locked. Figure 2 is a partial perspective view of the operator of the invention, particularly showing members of the door operator incorporated in the blocking of the direct panel of the invention. As shown the helical drive actuator is shown approaching and in the locking pattern shown in Figures 7 and 8. The embodiment of the invention is also shown using a mechanical locking lever which prevents movement from a closed position of the door by means of a stopper with the door panel hanger. Figure 3 is another partial view of an alternate embodiment of the invention, wherein the lock of the invention incorporates a locking lever that extends beyond the structure of the door hanger and prevents movement of the door panel from a closed position by means of a direct contact with the door panel. Figure 4 is a partial side view of the locking assembly of the invention showing locations of the hanger of the base door of the helical impeller door and the panel locking components according to the invention, in a position prior to the blocking action . Figure 5 is a section through Figure 4 along lines 5-5 of Figure 4 showing blocking members in a normal or unblocked position before entering the blocking sequence. Figure 5A is a partial view of the cam of the locking and actuating pin corresponding to the position of the locking member of Figure 5. Figure 6 is an additional section along line 5-5 of Figure 4, however, the locking members and the base plate of the actuator in an initial locking actuation position wherein the locking drive cam and the pin have rotated 60 ° from a non-locking position, with the pin of the locking impeller located in the lever space of the crossed sear. Figure 6A is a partial view of the locking drive cam and the pin corresponding to the locking positions of Figure 6. Figure 7 is another section along lines 5-5 showing particularly the locking members in partial action positions comprising the spring of the traversed sear, and the locking pawl and the pin have rotated approximately 110 °. Figure 7A is a partial view of the locking drive cam and pin corresponding to the positions of the locking member of Figure 7. Figure 8 is another section along line 5-5 of Figure 4 which particularly shows locking members in fully actuated positions, wherein the locking pawl and the pin have rotated 120 ° from an initial position shown in Figure 5A and the locking lever traversed lock and the locking fork are in a position of blocking. Figure 8A is a partial view of the locking drive cam and pin corresponding to the positions of the locking member in Figure 8. Although this invention has been described in relation to the first embodiment, wherein the locking member retains the door panels in a closed position by interference with the door hanger and an alternative embodiment wherein the locking member extends to a position where it retains the door panel in a closed position by a movement preventing direct contact with a door. edge of the panel, it is understood that it is not intended to limit the invention to those modalities. But it is possible to make all kinds of alternatives and modifications that fall within the scope and spirit of the present invention. DESCRIPTION OF THE INVENTION First considering Figure 1 blocking or lock of the invention is a part of an operator having locking components. The operator and the lock are mounted above a typical transport vehicle door opening on the underside of the base plate 7 attached to the structure of the car 1 (Figure 1). The propeller drive member 6 is suitably attached to the plate 7 for a rotary movement. A threaded door drive nut assembly (reference Figure 2) on the propeller member 6 is attached to the door hangers 12 at the upper end of the sliding door panels. With particular reference to Figure 1, the door panels are part of a bi-separable sliding door system typically used to open or close the entry in mass transit vehicles. As shown in Figure 1 the door panels are shown in closed position, while the open door positions are shown as a ghost in the panels 5 representing the door panels 3. The operator of the invention that is presented incorporates a rotary impeller motor 10 suitably coupled to the propeller drive members 6. base plate 7 is attached to the members of structure 7 of the wagon of a typical wagon structure assembly 1. Also attached to the base plate 7 is a tubular door hanger 8 extending longitudinally along the base plate 7 The door hanger 8 includes a member 12 attached to the upper edge of the door panels 3. When operating the impellers of the type presented here move the door panels from the open to the closed position by rotating the output shafts of the driving member 10. To facilitate the movement of the panels 3 along the door hanger 8 there are suitable supports or bearings arranged inside the suspensor 8. Referring to to Figures 4 and 5 the locking assembly 16 of the invention incorporates an actuating cam 31 fixed to one end of the rotary propeller 6. A pin 33 extends from the cam 31 also separately joined with a trunnion in an adjacent part of the member 6 attached to the member 6 for rotation around it is a cross-fastener lever 19 having an extended arm 21. Adjacent axially to the lever of the traversed sear 19 and also connected with a stump for a particular movement with respect to the member 8 and rotatably with respect to the sear 19 there is an actuator arm 35 having a pin 36 extending from its inner end. Also attached to the separate stump portion of the spaced member 6 is a spring retaining block 24 having a spring retaining shaft 25 extending therefrom. The opposite end of the pin 25 is retained in an opening 22 located in the arm 19. A compression spring 27 surrounds the pin 25 and is contained at either end by a spring retaining block 24 and an arm 21. Adjacent to the pin 36 there is a locking fork 37 having hooks 39. The locking fork 37 is mounted on a locking shaft 43 for limited rotation in a plane perpendicular to a driving member 6. The locking shaft 43 is rotatably mounted in the base plate 7 by the blocking shaft support 45. Attached to the locking shaft 43 at an opposite end to the positioning of the locking fork 37 a door ratchet 46 (Figure 2) positioned for rotation in cooperation with the movement of the fork 37 and attached to the axle 43. When the rotary propeller drive member 6 operates in accordance with the driving direction it moves the doors 3 and 5 from the open to the closed state when needed . The locking action with the doors in a closed position as shown in Figure 3 starts with a continuous rotation of the propeller drive member. The door drive member or nut assembly 14 advances along the drive member 6 and approaches the pin 33 extending from the locking cam 31. At this point no blocking action has occurred. With reference to Figure 5 the propeller drive member 6 has rotated in such a way that the pin 33 on the actuator cam 31 has already entered the space 18 of the fork 19 occupying a position in the extreme left position of the space 18. As the rotation of the drive member 6 continues to rotate the pin 33 to partially compress the spring 27 of the sear as shown in Figure 6. The continuous rotation of the drive member 6 moves the pin 36 extending it from the lock actuator 35 between the pins. scissors 39 of the fork 37 (Figure 7). Continuing the rotation of the member 6 also advances the cam 31 and the pin 33, 60 from the position 1 thus compressing the spring of the detent and advancing the advance driving arm pin 56 in the fork fork 37 (References of Figures 7 and 7A). Further rotation of the member 6 at 120 ° from its position in Figure 5 allows the spring 27 to actuate the lock lever 19. The lever 19 rotates to the actuator arm 35. The pin 36 in the arm 35 moves between the hooks 39 and the locking fork 37 and moves it and attaches to the locking shaft 43 in a locked position, by rotating the locking cam of the door panel 46 to a location behind the extension 13 attached to the door hanger 12. Since the position of both door panels 3 corresponding to the positioning of the drive nut assembly 14 and the hanger attached 12 is closed when the locking sequence is initiated as shown in Figures 4 and 5 the locking pawl 46 and the extension 13 prevent the opening of the door. The rotation of the propeller drive member 6, which has now moved a total of 120 ° from the unlocked position as shown in Figure 8, where the pin 36 extends from the actuator cam 35 has now rotated to the locking fork 37 from its initial horizontal position to its locking position. More movement of the pin 33 past the 120 ° has moved the fork 37 to its forward position, the spring 27 now being re-extended. In this traversed position the locking fork 17 and the driven cam 35 are retained with residual force exerted by the spring 27 which is now re-extended. This residual force exerted on the actuator cam pin 33 and an actuator arm 38 is transmitted to the locking fork 37 by means of the pin 36. The residual force provided by the lever of the traversed sear 19 offers several advantages because the fork 37, the axle 43 and locking pawl 46 are positively retained in a closed door position. Also the residual force on the pin 33 resists any tendency for the propeller members 6 to be driven by external forces on the door panels towards an unlocked position. An alternative embodiment of the present invention is shown particularly in Figure 3, although the initial embodiment of this invention incorporates an alternate modality for use in situations, where the door panel hanger can not be properly positioned, moving a blocking member directly to the path of an edge of the door panels 3 after they have reached the closed position is also considered in the field of the present invention. Therefore, referring to Figure 3 there is shown a blocking member 47 attached to the locking shaft 43. Those skilled in the art of the electric door equipment will immediately appreciate that the availability of the locking shaft 43 driven by the driving driver of the door and in fact traversed in an independent position, as described, presents many additional configurations for locking the door panels in order to provide positive locking of the panel in the event that any portion of the door drive system fails.

Claims (7)

1. CLAIMS l.-In combination a rotary propeller drive actuator arranged horizontally on an opening in the side wall of a passenger vehicle, the actuator includes a drive nut on the propeller, the nut is attached to a door panel to move it reciprocally opening and closing and thus opening and closing the opening of the side wall and a lock or lock actuated by the driving member to retain the panel in a closed and locked position on the opening, the lock comprises: means for rotating the propeller drive member; a locking cam attached and rotating with one end of the drive; an actuating locking pin on the cam the pin extends inwardly and along the drive; a first latch on the nut, the latch advances towards the pin with rotation of the driving member, the rotation 9 to the panel from the open position to the closed position by the opening; second latch on the actuator, which is actuated by the first latch includes a panel locking member, the locking member coacting with the panel to retain it in a closing position of the door when the second latch is actuated; wherein the rotation of the actuator advances the nut to a closed door position and the pin drives the first actuator engaged to the second detent whereby the locking member holds the panel in a closed condition.
2. 2. A lock for a door operator having a rotary propeller drive member and a co-operating nut on the propeller member for a linear movement along the rotating member, the nut moves a door panel to open positions and closed in an opening in a sidewall of the wagon, characterized in that it comprises: an operator base plate for mounting the operator in the sidewall of the wagon; a door panel hanger attached to the nut; means for rotating the propeller drive member; blocking means at the end of the driving member, the blocking members extend perpendicular therefrom; intermediate detent means between the base plate and the nut, the detent means actuated by the locking means so that the nut moves a closed door position, the detent means coact with the suspensor to maintain the panel in a position closed; wherein the rotation of the drive member moves the nut and the panel to a closed position actuated the locking and locking means and thus blocked the panel.
3. 3. - In an electric door operator having a drive to move a door panel in a public transport vehicle from open to closed, a door panel lock comprising: an operator base plate attached to the vehicle to mount the operator and the door panel; a door drive nut that runs on the propeller drive to move the panel from open to closed position; suspensor attached to the panel and to the drive nut; immediate fastener means between the drive nut and the base plate for a closed door position; blocking means in the propeller drive for actuating the detent means when the panel is in a closed door position; rotary means in the propeller drive, which move the nut and panel to a closed door position;
4. 4. Door panel lock according to claim 3, further comprising fastener means on the nut, means on the propeller drive member that activate the nut detent means; securing means on the base plate, the securing means on the base plate are actuated by the nut detent means, and include a locking member for retaining the panel in a closed position when the nut detent means actuates.
5. 5. The panel lock according to claim 4, characterized in that the locking means comprise: locking cam at one end of the propeller drive; locking pin extending into the cam.
6. 6. The panel lock according to claim 5, characterized in that the fastener means comprise: a fastener lever, the lever having a fastener pin extending inwardly; a first fork member, the member captures the pin when the door reaches a closed position, and the rotation of the cam drives the nut sear.
7. 7. The panel lock according to claim 6, characterized in that the securing means of the base plate comprises: a second fork member mounted on the base plate for a rotary movement there, wherein the lock pin captures the second fork member, thus locating the sear of the base plate and placing the second fork member adjacent to the door hanger. RESUME A door panel lock or lock operated by a rotary propeller door drive where the door panel of a mass transit vehicle is held in a closed position by direct contact with the panel, providing improved security of blocking through the elimination of intermediate operator components.