DE4113391A1 - Power sliding door closer - Google Patents

Abstract

A sliding door in a van is mounted on tracks for sliding movement between open and closed positions. At the closed position a weather strip is compressed and a door latch is latched. A cable is attached to the door and routed through the vehicle body via pulleys so that pulling the first cable end opens the door and pulling the second cable end closes the door. - A motorized drive mechanism includes first and second reels mounted concentrically and having the cable ends wrapped respectively about the reels in opposite directions. A motor drives in one direction rotating the first reel to open the door and is reversible to rotate the second reel to close the door. Each of the reels has a large diameter portion for winding the cable to provide relatively high speed and low force door movement over the greatest portion of travel and a small diameter portion for winding the cable to provide relatively low speed and high force movement of the door during the lesser portion of travel of the door closest to the closed position.

Description

The invention relates to a device for opening and Closing a vehicle slide fastener, such as a door or a window, and in particular results in an improvement t closing and locking of the closure part.

It is known to have a closure part such as in motor vehicles a sliding side door on rails to attach them to sliding front or rear between open and closed position lungs to move. When the door to the closed position comes, a rubber weather strip or piping is put together presses to seal against weather conditions create, and a door latch is locked to lock the door keep closed. To lock the door and such To push the piping together, the user moves the door of the vehicle quickly to the closed position.

It is also known to use a motor driven mechanism To provide such a sliding door. In particular is it is known to use motorized sheaves the rope attached to the door to wind and unwind, with a Rope the door forward and another rope the door pulls behind. An embodiment is in US-PS 48 62 640 shown.

It is necessary and desirable that such a servo door locking system influences the closing speed of the door. The user of the motor vehicle wants the door to be large move speed, so as to get into that Get out of the vehicle to accelerate, but without one Slamming the door. It is also necessary the closing force to control the door so that the door is strong enough to lock the door latch and to compress the Keders is closed. This is the goal of the inven is specified.  

A device according to the invention for opening and closing a Ver slidably attached to a vehicle body closing part includes rope means attached to the closure part are brought, with first and second ends; a first rope roll to which the first end of the rope means is attached is that turning the first pulley in winding direction tion for the rope the closure part to the closed position slides there; Rotary drive means that is designed for Drive intervention for turning the first rope pulley in Aufwic direction of the rope means when the rotary drive means is applied in one direction and excels through a second pulley to which the second end of the rope is attached so that rotating the second rope roll the fastener in the winding direction for the rope means slides part to the open position; being the shoot drive means is designed, rotating on the second rope roll to attack this to rotate and the rope means on it when the rotary drive means in the other direction is applied; and by spring means that a turning of the first or second pulley in their respective The direction of rotation causes the respective rope wind up ends so that the rope means during the Abwic kelns is held taut by the respective pulley.

In one embodiment of a sliding door on a lie ferwagen the sliding door is usually attached to rails brings to sliding between an open and a close position to be moved. When the door is in the closed position reached, a piping is pressed together and a door latch locked. A rope is attached to the door and through the Vehicle body passed over pulleys so that a Pull the door to the open position at the first end of the rope slides and pulls on the second end of the rope the door pulls towards the closed position. A motor drive Mechanism of the invention ent for pulling the ropes  holds first and second concentrically attached pulleys, to the rope ends in opposite directions are wound up. The motor drives in one direction, in who turns the first pulley in the cable winding direction, to open the door and is reversible to the second Rope pulley in the rope winding direction to close the door to turn. Each pulley preferably has an Ab cut large diameter to wind the rope movement of the door at a relatively high speed and lower force during the larger section of the path and a small diameter section for opening wrap the rope around a movement with a relatively low Ge speed and high strength during the lower proportion the path of the door near its closed position ben. So the door closes and opens at high speed speed during most of the walk, then runs but with great force to effectively pull the piping together press and lock the door latch. The section with large diameter and the small diameter section of the pulleys each have rope grooves to accommodate the Ropes and an ascending or descending groove for the connection the large and small diameter sections, see that the point of departure of the rope from the pulleys during the pulley rotation from one section to the other transforms. A tension spring acts between the two Rope pulleys to keep the rope under tension at all times.

The present invention provides an apparatus for movement supply of a locking part, the device on pulleys attached rope ends contains with a spring that between the rope pulleys acts to keep the ropes under tension.

The present invention can also provide an apparatus ben where the rope is on a pulley with a take-up section for the rope with large diameter wound  is to move a door at high speed and ge weak force during a larger section of the doorway to create and a smaller diameter section for winding the rope to a movement with relatively never speed and high power for the door during to create the path that is closest to the locking point to effectively lock and unlock the door to seal.

The invention is described below with reference to the drawing exemplified in more detail; in the drawing shows:

Fig. 1 is a perspective view of the interior of a vehicle having the general arrangement of a Gleittüre and a device according to the invention type,

Fig. 2 is an exploded view of the device of Fig. 1,

Fig. 3 is a sectional view of the motor driving mechanism of Fig. 1 with broken or cut pieces,

Fig. 4 is a view of the door latch in the unlatched position,

Fig. 5 is a view of the door latch of FIG. 4 in the seconding Dar-locking position,

Fig. 6 is a view of the door latch in the primary locking position, and

Fig. 7 is a graphical representation of the door path and the associated force.

Fig. 1 shows a partial perspective view of a Lie ferwagen body 10 , in which a door 12 for sliding movement is attached to the front or rear. An arm 14 extends inward from the lower edge of the door 12 and carries a roller that runs in a lower rail 16 that is hidden under the floor 18 . As best seen in FIG. 2, an upper arm 22 extends inwardly from the door 12 and carries rollers 24 , 26 and 28 which roll in an upper rail 30 attached to the side wall of the truck body. Fig. 1 shows the door 12 in the open position. A sliding movement of the door 12 forward is made possible by the movement of the rollers attached to the door within the lower rail 16 or the upper rail 30 . Each of these rails 16 , 30 is bent inward at the respective front end, as shown in Fig. 2 with respect to the upper rail 30 at 32 , so that the door slides inward to complete the door opening when the door 12 is fully closed Location reached. A piping 34 is brought to the door 12 and presses against the truck body 10 when the door reaches its closed position. A door latch 36 is attached to the door 12 and locked with a lock pin 37 attached to the truck body 10 to hold the door 12 in the closed position. The door latch 36 and locking pin 37 are shown in more detail in FIGS. 4, 5 and 6.

As can be seen in FIG. 4, the door latch 36 contains a housing 38 with a constriction 40 which catches the locking pin 37 when the door 12 approaches its closed position. A fork bolt 42 is attached to the housing 38 by a pivot pin 44 .

According to Fig. 5 of the closing pin 37 can after entering the throat 40 the fork bolt 42 in a clockwise direction in the Se kundär-locking position of FIG. 5 rotate, in which a mounted on the housing 38 via the pivot pin 50 detent 48 has a detent tooth 52, which detects a locking hook 54 of the fork bolt 42 .

Fig. 6 shows the position of the door latch 36 when the door 12 is in the fully closed position, in which the locking pin 37 has rotated the fork bolt 42 further clockwise into the primary locking position, in which the locking tooth 52 with a primary hook 55 of the fork bolt 52 in one handle.

The door latch 36 contains an electrical switch 56 with a touch sensor 58 , which detects the position of the fork bolt 42 , and an electrical switch 60 with a touch sensor 62 , which detects the position of the detent 48 .

In FIGS. 2 and 3, the motor drive mechanism 70 showing ge. A rope 72 is connected at one end 75 to the upper arm 22 and extends through the curved front end 32 of the upper rail 30 and is screwed through bushings 73 into a guide sleeve 74 which wall on the side of the delivery vehicle body 10 according to FIG is attached. 1,. The guide sleeve 74 carries a attached to an axle 78 mounted deflection roller 76 and is stopped te on an axle 82 guide roller 80, which guide the cable 72 rearwardly to a first pulley 84 which can be rotated in a clockwise direction to wind up the rope 72, whereby it pulls the door 12 forward to the closed position.

A rope 88 is connected at one end 90 to the upper arm 22 and extends through the upper rail 30 around a pulley 94 attached to an axis 95 , so as to guide the rope 88 to a second pulley 96 , which is for winding up of rope 88 can be rotated counterclockwise, thereby pulling door 12 rearward to open.

The rope pulleys 84 and 96 are attached to the vehicle via a fastening bracket 98 which is screwed onto the delivery vehicle body 10 and to which a spindle 100 is attached. A drive gear 102 sits on the spindle 100 . The first pulley 84 is rotatably supported on the drive gear 102 . The second pulley 96 is seated above the first pulley 84 rotatably with respect to the spindle 100 and the first pulley 84 . A housing 106 projects downward from the flange 98 and carries an electric motor 108 which drives a pinion 110 which is seated on a stationary spindle 112 which is attached to the plate 98 . An electromagnetic clutch arrangement 114 sits on the spindle 112 and has an input gear, not shown, which meshes with the pinion 110 , and an output gear 116 , which meshes with an internal toothing 120 on the drive gear 102 . The output gear 116 carries a slotted disk 122 which passes through a stationary sensor 124 which is in communication with an electrical circuit.

A freewheel drive connection is provided between the drive gear 102 and the first pulley 84 . The free-wheeling connection includes a drive pin 126 on the drive gear 102 , as shown in FIG. 2, and a complementary drive pin 128 which, as shown in FIG. 3, is held by the first pulley 84 . A one-way clutch is also provided between the drive gear 102 and the second pulley 96 . A drive pin 132 is held on the upper surface of the drive gear 102 as seen in FIG. 2 and can engage a drive pin 134 held on the second pulley 96 of FIG. 3.

As shown in FIGS . 2 and 3, a helical spring 140 acts as a tension holding spring and sits in an annular opening in the rope pulleys 94 and 96 . An upper spring end 142 is anchored to the second cable pulley 96 and a lower spring end 144 to the first cable pulley 84 . The tension spring 140 causes urging the second pulley 96 in the cable winding direction in the counterclockwise direction and urging the first pulley 84 in the opposite Seilwickelrich direction clockwise, so that the cables 92 and 88 are kept constantly under tension.

As best seen in FIGS. 2 and 3, the first pulley 84 has a large diameter section 150 with a helical cable groove 156 and a small diameter section 158 with a helical cable groove 160 . A transition groove 162 connects the helical rope groove 156 to the helical rope groove 160 . The end of the rope 72 is anchored to the portion 150 of large diameter of the first pulley 84 .

Furthermore, as can be seen in FIGS. 2 and 3, the second pulley 86 is constructed in the same way as the first pulley 84 with a section 170 of large diameter with a helical cable groove 172 and a section 174 of small diameter with a helical cable groove 176 . As shown in Fig. 2, the end of the cable 88 is attached to the second cable pulley 96 in the region of the section 174 with a small diameter.

As best shown in FIG. 2, a cover 186 is attached over the pulleys 84 and 96 and held by a nut 188 . The cable 88 exits the cover 186 through a passage 190 , which is held in an outlet opening 192 .

In the drawing, the door 12 is shown in the open position. The rope 88 is completely wound onto the second rope pulley 96 and the rope 72 is completely unwound from the first rope pulley 84 . The tension spring 140 acts between the pulleys 84 and 96 so that the second pulley le 96 is pushed in the counterclockwise direction and the first pulley 84 in the clockwise direction, so that both cables 72 and 88 are kept constantly under tension.

When a user of the vehicle wants to close the door, the electric motor 108 is turned on to actuate the drive pin 126 via the pinion 110 , as well as the electromagnetic clutch assembly 114 and the output gear wheel 116 . Rotation of the drive gear 102 clockwise makes its drive pin 126 engage with the complementary drive pin 128 of the first pulley 84 and the first pulley 84 for winding the cable 72 rotate clockwise, which then moves the door 12 forward to the closed position is pulled. The rope 72 is wound further and further onto the spiral rope groove 156 of the section 170 of large diameter of the first rope pulley 84 . When the door approaches the closed position, the cable 82 continues to slide over the transition groove 162 and the further rotation of the first cable pulley 84 causes the cable 72 to wind up in the helical cable groove 160 of the section 158 of small diameter of the first cable pulley 84 .

Assuming that the electric motor 180 rotates at a constant speed, accordingly, the winding of the rope 72 on the large diameter portion 150 of the first pulley 84 allows the door 12 to travel a considerable distance at a relatively high speed, and as soon as the door opens approaching the closed position, the winding of the rope 72 onto the section 158 of small diameter causes the door 12 to move at low speed, but a greater force is transmitted to the rope 72 . This relatively larger force effectively presses the piping 34 on the door 12 together and allows the door lock 36 to engage with the locking pin 37 according to FIGS. 4, 5 and 6.

It is understood that the movement of the door 12 forward pulls the rope 86 out of the second rope pulley 96 against the tension of the tension spring 140 . The tension holding spring 140 acts between the two rope pulleys 84 , 96 so that the spring constantly maintains a predetermined tension in the rope 88 when it is unwound from the second rope pulley 96 .

Fig. 7 is a graph of the travel of the door 12 against the force exerted on the door 12 by the drive mechanism. It can be seen that the path of the door 12 from the open to the closed position takes place at a relatively low force but high speed until the door has covered approximately 90% of the distance to the closed position. Then the winding of the rope 72 begins on the section 158 with a small diameter, so that the final de run with high force and low speed is going on, while the secondary locking function and the primary locking function of the door lock 36 is performed.

When the door 12 is to be opened, the door lock 36 is unlocked and the electric motor 108 is actuated so that the drive gear 102 rotates counterclockwise and the drive pin 132 engages with the complementary drive pin 134 of the second rope pulley 96 to the second rope pulley 96 in counterclockwise and wind the rope 88 . The end of the cable 88 is attached to the small diameter section 174 of the second cable pulley 96 so that the initial movement of the door 12 occurs with high force and low speed. As the winding progresses, the cable 88 goes over the transition groove 180 and then continues the winding on the large diameter portion 170 of the second pulley 96 so that the door movement continues at high speed and relatively low force.

It can be seen that a new and improved closing process for a sliding door in a lie Ferfahrzeug is created, with a rope during a larger portion of the door way on a pulley with a Large diameter section is wound so that the Door movement at high speed and lower To give strength, and during the closed position on next lying piece of the walkway to a section small diameter is wound up in order to open the rope wrap that a movement with a relatively low Ge results in speed and high force, thereby closing the door lock and seal.

The description is given for a door facing forward and slides behind, but it can be seen that the present The present invention can also be used, for example one window to the front and back or up or down to move, and also to move a train door up and down to move down.

Claims (5)

1. A device for opening and closing a closure member ( 12 ) slidably attached to a vehicle body comprising: rope means ( 72 , 88 ) attached to the closure member and having first and second ends; a first pulley ( 84 ) on which the first end of the cable means is attached so that rotation of the first cable roll in the winding direction of the cable means allows the closure part to slide towards the closed position; Rotary drive means ( 102 , 108 , 110 , 114 , 116 ), designed for drive engagement and for rotating the first pulley to wind the cable means thereon when the rotary drive means is acted upon in one direction, characterized in that a second pulley ( 96 ) is provided, on which the second end of the cable means is attached so that rotation of the second pulley in the winding direction of the cable means allows the closure member to slide towards the open position; that the rotary drive is designed to rotate to access the second pulley and to rotate it to wind the cable means thereon when the rotary drive means is acted upon in the other direction; and by spring means ( 140 ) which causes rotation of the first and second pulley in their respective directions of rotation for winding the rope ends, so that the rope means is held in tension during the winding of the respective pulley. 2. Device according to claim 1, characterized in that the rotary drive means is a single reversing motor ( 108 ), both with the first ( 84 ) and the second ( 98 ) pulley via free-wheel drive connections ( 126 , 128 , 132 , 134 ) so is connected that the application of the motor in one direction brings the motor to the drive connection with a pulley and at the same time solves the drive connection with the other pulley. 3. Apparatus according to claim 1 or 2, characterized in that the first and the second pulley ( 84 , 98 ) on a spindle ( 100 ) are coaxially attached and the spring means ( 140 ) acts between the pulleys to roll the rope to rotate in the opposite direction to urge the spindle. 4. Device according to one of claims 1 to 3, characterized in that each pulley ( 84 , 98 ) has a portion ( 150 ; 170 ) of large diameter for winding the Seilmit means ( 72 ; 88 ) to a movement with a relatively high To create speed and low force for the closure member ( 12 ) during a larger portion of the run between the open and closed positions, and a portion ( 158 ; 174 ) of small diameter for winding the cable means to a movement with relatively never driger To create speed and high force of the closure member during the last, smaller section of the path, close to the closed position, whereby the United closure member first closes at high speed and then fully closes with high force to effectively lock and seal the closure member. 5. The device according to claim 4, characterized in that the sections ( 150 ; 170 ) of large diameter and the sections ( 158 , 174 ) of small diameter of the pulleys ( 84 ; 98 ) rope grooves ( 156 , 160 ; 172 , 176 ) for receiving of the cable means ( 72 , 88 ) and a transition groove ( 162 ; 180 ) for connecting the respective sections of small or large diameter to each other, so that the exit point le of the cable means from the rope pulley passes from one section to the other during the rotation of the rope pulleys.