RU2784881C2 - Drive device of two-leaf door - Google Patents

Abstract

FIELD: doors.

SUBSTANCE: invention relates to two-leaf doors opened inside, mostly to vehicle doors. A drive device is proposed for a two-leaf door opened inside, each leaf of which is connected to leaf movement levers rigidly fixed on a rotary rack installed in supports with bearings and having a rack rotation lever fixed on the rack and connected with thrust, which is a rod of a crank-rod mechanism (hereinafter – CRM) of a drive of the rotary rack, a crank of which is an arm of a two-arm lever fixed on an output shaft of a reciprocating-rotational motion engine (hereinafter – RRME). RRME case is fixed on a base of the device, while each arm of the two-arm lever is connected, with a ball joint (hereinafter – BJ), to the first end of thrust, the second end of which is connected to the rack rotation lever so that a right arm of the two-arm lever (hereinafter – TL) is connected, with BJ, to left thrust connected to a rotation lever of a left rotary rack, and a left arm of TL is connected, with BJ, to right thrust pivotally connected to a rotation lever of a right rotary rack. On an upper crossbeam of each leaf, there are brackets with rollers coming into guide rails. The drive has unlocking means in a closed state of the door. With the door closed in a “dead point” CRM position, left thrust is located on a lower part of the ball joint of the right arm, and right thrust is located on an upper part of the ball joint of the left arm. The base consists of a bottom, rear, front, and end walls. The rear wall of the base of the device is fixed on a body wall. The guide rail of rollers fixed on brackets of upper crossbeams of leaves is made in the bottom of the base of the device.

EFFECT: increase in safety of a drive device of a two-leaf door opened inside.

5 cl, 4 dwg

Description

SUBSTANCE: invention relates to inward-opening double-leaf doors, mainly to vehicle doors.

A known drive for opening and closing the gate (patent 5752344 dated February 28, 1997), consisting of an electric drive connected pivotally to a crank mechanism, the crank of which is fixed to the output shaft of the electric drive, and the connecting rod, pivotally connected at one end to the crank, and the other to the gate .

Known lever drive that provides rotation of the sash (patent RU No. 2632279 dated 07/19/2013), and a lever drive for linear movement of the panel (EP patent No. 2956148 dated 11.02. pivotally connected to the first end of the second lever, the second end of which is pivotally fixed to the sash.

The disadvantage of each of these drives is to provide only rotation or only linear movement of the drive object.

A drive for opening and closing doors is known (patent RU No. 121851 U1 dated May 24, 2012) containing a reversible motor (RM) connected by means of a transmission mechanism to a rod that transmits force to the door. The rod is connected by a fork and a bipod to the transmission mechanism of the motor, and to the door through the fork and the fastening element having an eye. RM can be electric or pneumohydraulic.

The disadvantage of this drive is that it only provides rotation of the gate.

An electromechanical drive (EMP) of a double-leaf inward-opening door of a passenger vehicle is known (EP patent No. 1072749 dated 06/15/1999), containing two gear motors, each of which is connected via a gear train to a rotary rack having a lever drive for turning the door leaf relative to the one fixed on the top cross member of the leaf axis, the upper end of which has a roller movable in a guide located in the upper cross member of the door frame.

EMP has pneumatic means of unblocking the connection of the gearbox and the rotary rack, providing the possibility of opening the door in an emergency or in case of failure of the motor-reducer.

The disadvantage of this EMF is the complexity of the design and the unreliability of the pneumatic mechanism for unlocking the connection between the gearbox and the rotary rack.

A known design of a double-leaf door of a vehicle, mainly a bus (patent RU No. 2251493 dated 08/04/2003 and RU No. 2677389 dated 07/02/2015), each leaf of which opens inward with a lever of a rotary rack driven by a high-torque electric motor, the body of which is fixed on the upper cross member of the door frame , and the output shaft is connected to the upper end of the turntable.

The disadvantage of this design is the need for additional locking devices to prevent spontaneous opening of the door when the vehicle is moving and the increased cost, expressed in the need to use two actuators and synchronize their operation to control the double door of the vehicle.

A hydraulic door drive is known, the piston of which has a gear rack (US patent No. 6889501 dated April 14, 2003), and a gear shaft is installed in the housing, interacting with the rack and performing rotational movement within a given angle.

Known air motor VVD with a rotation angle of more than 180° and air motor VV with the transfer of "rack-pinion" (kampm.ru/articles/111/114/830/), which can be used in the pneumatic door of the vehicle.

A device is known for opening a double-leaf door of a vehicle with swivel racks (AS SU No. 1258320 dated 01.02.1983, Fig. 9, prototype), each of which is connected by the first lever rigidly fixed to the rack and pivotally connected to the upper cross member of the sash, and the second lever is rigidly fixed on the rack and pivotally connected to the rod of the crank mechanism, the crank of which is the shoulder of the two-arm lever, fixed on the output shaft of the reciprocating-rotary motion engine (RRP). According to this author's certificate, DVVD can be electric or pneumatic.

The disadvantage of this device is its reduced security due to the possible spontaneous opening of the door when the vehicle is moving.

The technical problem solved by the invention is to increase the safety of the drive device for a double-leaf door that opens inwards.

The technical problem is solved in the design of the drive device for a double-leaf door that opens inward, each leaf of which is pivotally connected to the upper and lower levers for moving the leaf, rigidly fixed to the swivel rack installed in the lower and upper supports with bearings, and having a rack rotation lever above the upper support, rigidly connected to the rack and pivotally connected by a rod of adjustable length, which is the connecting rod of the crank mechanism, the crank of which is the arm of the two-arm lever fixed on the output shaft of the DVVD, the body of the DVVD is fixed on the base of the device, while each arm of the two-arm lever is pivotally connected to the first end of the rod , the second end of which is pivotally connected to the rack rotation lever so that the right arm of the two-arm lever (DR) is connected to the left rod connected to the rotation lever of the left rotary rack, and the left arm of the DR is pivotally connected to the right rod pivotally connected to the rotation lever of the right rotary racks; on the upper crossbar of each sash there are brackets with rollers included in the linear guides; the drive has means for unlocking the door in the closed state, while the hinges connecting the arms of the two-arm lever with the rods are ball; when the door is closed in the “dead center” position of the crank mechanism, the left link is located on the lower part of the ball joint of the right shoulder, and the right link is located on the upper part of the ball joint of the left shoulder, while the ratio of the radius of rotation of the hinge axis of the rack rotation lever relative to the rack axis to the distance between the axes of the ball joints of the two-arm lever is in the range of 0.9 ... 1.1; the base consists of the bottom, rear, front and end walls; the rear wall of the base of the device is fixed on the wall of the body above the door; the guide of the rollers fixed on the brackets of the upper crossbars of the wings is made in the bottom of the base of the device; the upper supports of the rotary racks are fixed on the left and right end walls of the base of the drive device.

For use on a vehicle with an electric traction drive, the DVVD is a geared motor with a permanent magnet motor and a planetary gear.

For use on a vehicle with a pneumatic system, the DVVD is a pneumatic rotary motor with an output shaft rotation angle of at least 180° or a piston pneumatic motor with a rack-and-pinion transmission.

To ensure exit from the vehicle interior in an emergency (disconnecting the power supply to the DVVD), the drive release means include an emergency flap release lever having an axis of rotation installed in the reciprocating rotation drive bracket, the end of the lever is connected by a cable to the internal emergency handle on the bracket cables above the lever.

Achieving a technical effect - improving the safety of the drive device for a double-leaf door that opens inward - is ensured by the following set of distinctive features: the hinges connecting the arms of the two-arm lever with the rods are ball; when the door is closed in the “dead center” position of the crank mechanism, the left link is located on the lower part of the ball joint of the right shoulder, and the right link is located on the upper part of the ball joint of the left shoulder, while the ratio of the radius of rotation of the hinge axis of the rack rotation lever relative to the rack axis to the distance between the axes of the ball joints of the two-arm lever is in the range of 0.9 ... 1.1; the base consists of the bottom, rear, front and end walls; the rear wall of the base of the device is fixed on the wall of the body above the door; the guide of the rollers fixed on the brackets of the upper part of the wings is made in the bottom of the base of the device; the upper supports of the rotary racks are fixed on the left and right end walls of the base of the drive device.

This set of distinguishing features was not found in the process of patent information search, therefore, the technical solution meets the criterion of "novelty". It also does not follow explicitly from the prior art, therefore, the technical solution meets the criterion of "inventive step".

In FIG. 1 shows the device for driving a double-leaf door that opens into the interior of a vehicle.

In FIG. 2 shows section A-A in FIG. one.

In FIG. 3 - drive device connected to the second levers of the swivel racks and to the leaf rollers in the guides of the device.

In FIG. 4 shows a double leaf door with a drive device.

The drive device for a double-leaf door 1 that opens inward (Fig. 1-4), each leaf 1a and 1b of which is pivotally connected to the upper lever 2 and the lower lever 3 (Fig. 4), rigidly fixed to the rotary rack 4a (4b) installed in the lower support 5, in the upper bearings 6a (6b), and having above the bearings 6a and 6b levers 7a (7b) for turning the racks 4a (4b) rigidly connected to the racks 4a (4b) and pivotally connected by rods 8a (8b) of adjustable length, each of which is the connecting rod of the crank mechanism 9, the cranks (Fig. 3) of which are the shoulders 10a and 10b of the two-arm lever (DR) 11, mounted on the output shaft 12 of the engine 13 of the reciprocating rotational movement, the body 13a of which is fixed on the base 14 of the device, wherein each arm 10a (10b) DR 11 is pivotally connected to the first end 15 of the rod 8, the second end 16 of which is pivotally connected to the lever 7a (7b) to rotate the rack 4a (4b) so that the right shoulder 10b DR 11 is connected to the left rod 8a connected to the lever 7a p turn of the left swivel column 4a, and the left shoulder 10a of the DR 11 is pivotally connected to the right rod 8b pivotally connected to the lever 7b of the rotation of the right swivel column 4b; on the upper crossbars 1c and 1d of the leaves 1a and 1b there are brackets 17 with rollers 18 movable in linear guides 19 and 20, parallel to the upper crossbars 1c and 1d of the leaves 1a and 1b in the closed state of the door 1; the drive has means 21 (Fig. 2) for unlocking the door 1 in the closed state, accessible from inside and outside the body (not shown) of the vehicle (not shown), while the hinges 22a and 22b connecting the shoulders 11a and 11b of the two-arm lever 11 with the rods 8a and 8b are spherical; with the door 1 closed in the position of the crank mechanism 9 "dead center", the left link 8a is located on the lower part of the ball joint 22b of the right arm 10b, and the right link 8b is located on the upper part of the ball joint 22a of the left arm 10a, while the ratio of the radius of rotation of the axis hinge 23 a of the lever 7a of rotation of the rack 4a relative to the axis of the rack 4a to the distance between the axes of the ball joints 22a and 22b of the two-arm lever 11 is in the range of 0.9 ... 1.1; the base 14 (FIGS. 1-3) consists of a bottom 24, a rear wall 25, a front wall 26 and end walls 27a and 27b; the rear wall 25 of the base 14 of the device is fixed to the wall (not shown) of the body (not shown) above the door 1; guides 19 and 20 of the rollers 18, mounted on the brackets 17 of the upper crossbars 1 c and 1d of the flaps 1a and 1b, are made in the bottom 24 of the base 14; the upper bearing supports 6 of the turntables 4a and 4b are fixed on the left end wall 27a and the right end wall 27b of the base 14.

When used on a vehicle with an electric traction drive, the reciprocating rotary motion motor 13 is a geared motor 28 (Fig. 2) with a brushless electric motor and a planetary gear (not shown).

For use on a vehicle having a pneumatic system, the reciprocating motor 13 is a pneumatic rotary motor with an output shaft 12 rotation angle of at least 180° or a piston air motor (not shown) with a rack-and-pinion transmission (not shown).

To ensure exit from the vehicle interior in an emergency with the door 1 closed (turning off the supply of energy to the reciprocating rotation engine 13), the means 21 (Fig. 2) for unlocking the drive from the “dead center” position include an emergency unlock lever 29 having an axis 29a of rotation, mounted in the bracket 29b of the drive of the reciprocating rotational movement, the end 30 of the lever 28 is connected by a cable 31a to an internal emergency handle (not shown) on the bracket 32 of the cables 31a and 31b above the lever 29.

The means 21 for unlocking the drive when the door 1 is closed are driven by the force of one of the two cables 31a or 311b (from the external or internal emergency handle (not shown) of the emergency release of the leaves 1a and 1b of the door 1); the cables 31a and 31b are fixed at the end of the lever 29 remote from the axis 29a of rotation, and when a force is applied to at least one of the cables 31a or 31b, they, moving, drive the lever 29 in rotation, which, in turn, acts on the shoulder 10a (10b) of the two-arm lever 11 and brings the crank mechanism 9 of the drive out of the locked position (in the "dead center" position).

The base 14 of the device with the drive of the door 1 of internal opening is mounted on the body by means of mounting holes. After mounting the base 14 in the bearings 6a, 6b on the side walls 27a and 27b, the rotary posts 4a and 4b of the leaves 1a and 1b of the door 1 are fixed, the rods 8 are connected to the levers 7a and 7b of the rotary posts 4a and 4b; the rollers 18 of the leaves 1a and 1b of the door 1 are inserted into the guides 19 and 20 when the base 14 is mounted.

The motor 13 of the reciprocating rotational movement can be located vertically, and the mechanism 9 - in a horizontal plane.

When a control signal is applied to open the doors 1a and 1b of the door 1, the output shaft 12 of the motor 13 of the reciprocating rotation motion begins to rotate, which brings the mechanism 9 out of the locked position "dead center" and, acting on the rods 8a and 8b of the leaves 1a and 1b, through the levers 7a and 7b, swivel posts 4a, 4b, levers 2 and 3 and allow the doors 1a and 1b to turn and open according to the kinematic scheme.

When the mechanism 9 is removed from the "dead center" position, the flag 33 of the sensor 34 moves along with the rotation of the two-arm lever 11, and the sensor 34 generates a signal that the door 1 is unlocked. The execution of the sensor 34 can be either push action (microswitch) or non-contact action (inductive sensor). Next, the rotation of the shaft 12 of the motor 13 of the reciprocating motion through the mechanism 9 translates the shutters 1a and 1b of the door 1 to the predetermined position "Open", the control system (not shown) stops the supply of energy to the motor 13 of the reciprocating motion.

The process of closing the door 1 occurs in the reverse order: the output shaft 12 of the motor 13 of the reciprocating rotation, rotating through the rods 8a and 8b, ensures the rotation of the racks 4a and 4b of the door 1, and, acting on the wings 1a and 1b of the door 1, ensures their closing. When the "Closed" position is reached, the rods 8a and 8b of the leaves 1a and 1b of the door 1 move to the "dead center" position, ensuring the locked position of the mechanism and the leaves 1a and 1b. The flag 33 thus covers the area of the sensor 34, which generates a signal about the locked position of the doors 1a and 1b of the door 1.

When the power supply to the engine 13 of the reciprocating motion is turned off with the door closed, 1 person (driver, passenger, etc.), acting on one of the emergency handles (not shown), pulls the cable 31a or 31b, the lever 29 rises, acts through the stop 35 , turns clockwise on the two-arm lever 11 and brings the mechanism 9 out of the "dead center" position. The leaves 1a and 1b of the door 1 can then be opened manually.

Claims (5)

1. A drive device for a double-leaf door that opens inward, each leaf of which is pivotally connected to the upper and lower levers for moving the leaf, rigidly fixed to the rotary rack installed in the lower and upper supports with bearings, and having a rack rotation lever above the upper support, rigidly connected to rack and pivotally connected by a rod of adjustable length, which is the connecting rod of the crank mechanism of the rotary rack drive, the crank of which is the arm of the two-arm lever, fixed on the output shaft of the reciprocating-rotary motion engine (RRP), the housing of the RRP is fixed on the base of the device, while each arm of the two-arm of the lever is pivotally connected to the first end of the rod, the second end of which is pivotally connected to the rack rotation lever so that the right arm of the two-arm lever is connected to the left rod connected to the rotation lever of the left rotary rack, and the left arm of the two-arm lever is pivotally connected to the right rod pivotally connectedwith a lever for turning the right swivel column; on the upper crossbar of each sash there are brackets with rollers included in the linear guides; the drive has a means of unlocking the door in the closed state, characterized in that the hinges connecting the shoulders of the two-arm lever with the rods are ball; when the door is closed in the “dead center” position of the crank mechanism, the left link is located on the lower part of the ball joint of the right shoulder, and the right link is located on the upper part of the ball joint of the left shoulder, while the ratio of the radius of rotation of the hinge axis of the rack rotation lever relative to the rack axis to the distance between the axes of the ball joints of the two-arm lever is in the range of 0.9 ... 1.1; the base consists of the bottom, rear, front and end walls; the rear wall of the base of the device is fixed on the wall of the body above the door; the guide of the rollers fixed on the brackets of the upper crossbars of the wings is made in the bottom of the base of the device; the upper supports of the rotary racks are fixed on the left and right end walls of the base of the drive device. 2. The device according to claim 1, characterized in that the DVVD is a geared motor with a brushless electric motor and a planetary gear. 3. The device according to p. 1, characterized in that the DVVD is a pneumatic rotary motor with an angle of rotation of the output shaft of at least 180°. 4. The device according to claim 1, characterized in that the DVVD is a piston air motor with a rack-and-pinion transmission. 5. The device according to claim 1, characterized in that the means for unlocking the door drive include an emergency release lever having an axis of rotation installed in the reciprocating motion drive bracket, the end of said lever is connected by a cable to the internal emergency handle on the cable bracket above the lever.

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