DE202009018430U1 - retraction device - Google Patents

Abstract

Feeding device for sliding doors, school bathing etc. with a damping device and a spring (60) which act directly or indirectly on a pickup (40), wherein the pickup (40) is movable between a retraction position and a freewheeling position, characterized in that the Damping device comprises two dampers (30) whose damping effect acts in series on the transducer (40).

Description

The invention relates to a collection device for sliding doors, school bathing, etc. with a damping device and a spring, each of which acts directly or indirectly on a pick-up, wherein the pick-up between a feed position and a freewheeling position is movable.

Such a collection device is known from A 766/89. They are used there to draw drawers in the closed position. In this case, the collection device acts in the last part of its closing movement on the drawer and the spring pulls the drawer. In order to prevent a strong impact of the drawer in the closed position, the damping device counteracts the effective direction of the spring. The collection device is also used for example in sliding doors, wherein the sliding door is then pulled into the closed position. Now, if the moving unit (drawer, sliding door, etc.) has a high mass, the damping device must provide a high damping force to reliably reduce the kinetic energy on the relatively short damping path.

However, this leads to the moving unit being braked abruptly, which is distracting. It has therefore begun to extend the attenuation paths of the dampers used in the damping device. However, this led to damper failures due to the then occurring mechanical instability. A more massive dimensioning of the damper is undesirable for reasons of space.

It is an object of the invention to provide a retraction device of the type mentioned, with the units with high moving mass can be reliably attenuated and recovered, the cramped available space volume is taken into account.

This object is achieved according to a first alternative of the invention in that the damping device comprises two dampers whose damping effect act in series on the transducer.

The two dampers thus act on the transducer so that their available damping paths at least partially add up. This extends the entire damping path. The deceleration of the moving assembly can thus take place over a longer way and the kinetic energy is thus continuously reduced. As a damper small, stable units can be used. Thus, a sufficient mechanical stability of the entire system can be guaranteed without the permissible space limits are left.

According to a preferred embodiment of the invention, it may be provided that the dampers are coupled to a displaceable actuating element. About the actuator, the two dampers can be reliably coupled to each other in a simple manner. If it is provided that the adjusting element is linearly adjustable in a sliding guide of a housing, then the adjusting element and thus the entire damping device is additionally mechanically stabilized via the sliding guide.

A particularly preferred embodiment of the invention may be characterized in that the dampers are designed in the form of fluid dampers with a cylinder and a piston adjustable therein, in that a piston rod is coupled to the piston, and in that the piston rods of the dampers are displaceable in opposite directions. The dampers are already in use as reliable components and can be obtained inexpensively. In addition, can be realized with the given displacement paths of the piston rods a simple construction. It can be provided that the piston rods are parallel to each other adjustable.

A reliable power transmission between the transducer and the housing can be created by coupling one damper to the transducer and the other damper to a housing-side mounting.

According to a second embodiment of the invention, it may be provided that the damping device comprises two dampers whose damping effect acts in parallel on the transducer. In this embodiment, the damping effects of the damper add without the space of the feeder is thereby significantly increased. In particular, depending on the geometry of the available construction space, the dampers can be grouped together in such a way that they are optimally utilized.

A simple and mechanically stable construction results from the fact that the dampers are designed in the form of fluid dampers with a cylinder and a piston adjustable therein, in that a piston rod is coupled to the piston and in that the piston rods of the dampers act in the same direction It can be provided that both dampers are coupled by means of pivot bearings to the transducer.

In order to ensure reliable operation of the pickup in the feed device according to the invention, it is conceivable that the pickup is adjustable in a guide between the retraction position and the freewheeling position, and that the guide has a parking section in which the transducer is tilted relative to its orientation in the retracted position.

If it is provided that the damper or the damper is rotatably coupled to the transducer is / are, and that the spring is spaced from the bearing coupled to the transducer, then acting on the transducer torque. This can be used to move the pickup in the free-running position. To reduce the parts cost, it may be provided that identically constructed damper are used.

The invention will be explained in more detail below with reference to exemplary embodiments illustrated in the drawings.

Show it:

1 a first alternative of a collection device in perspective view;

2 to 4 in the 1 shown collection device in several functional positions and each in side view;

5 a second alternative of a collection device in perspective and

6 to 7 the suction device according to 5 in several functional positions and in each case in side view.

The 1 shows a collection device with a housing 10 , The housing 10 has a side wall 11 on, are connected to the sides of wall parts. The side wall 11 and the wall parts enclose a receiving space, which can be closed with a lid (not shown). The lid has a wall which is parallel to the side wall 11 stands. The lid and the case 10 have mutually aligned screw receptacles 16 on. Through this fastening screws can be passed and the collection device to a wall of a carcass, a drawer, a sliding door, etc. are screwed.

In the receiving space of the housing 10 a damping device is installed. This includes an actuator 20 and two identical dampers 30 , The actuator 20 is in the form of a carriage, which is linear in the housing 10 is displaceable. This is the case 10 with a sliding guide 14 fitted. This is from the sidewall 11 , the wall of the lid the upper horizontal edge of the housing 10 and a spring retainer 13 bounding wall 13.2 educated. On these components, the actuator can 20 glide along with guide surfaces.

As the 1 can be further seen, is the actuator 20 with two plug-in receptacles 21 executed. In this, the cylindrical outer contours of a cylinder of the damper 30 be plugged in. The cylinders each have a circumferential groove 34 on, where they are fixed immovably to the actuator in the axial direction. The dampers 30 have a piston rod 31 on, which is coupled to a piston. The piston is linearly adjustable in the cylinder interior against an air volume. The piston rods 31 are ends with suspensions 32 provided in one piece to the piston rods 31 are formed in the form of material compaction. Again 2 is removable, is the lower damper 30 with its suspension 32 in a holder 15 established. The upper damper 30 is with its suspension 32 rotatably mounted on a transducer 40 connected.

The pickup 40 is designed as a plastic injection molded part and has two stops 41 and 43 , The stop 43 is on a spring element 42 of the pickup 40 attached. The pickup 40 carries on a boom a locking piece 44 , Furthermore, the pickup 40 with a spring suspension 45 equipped, in which a spring 60 can be hung at the end. The other end of the spring, designed as a helical spring spring 60 is on a spring suspension 13.1 of the housing 10 fixed, with the spring 60 in the spring receptacle 13 is arranged. In the area of the warehouse 33 is the locking piece 40 on both sides with trunnion 46 fitted. These grab a leadership 12 one. The leadership 12 is with a linear section 12.1 and a park section 12.2 equipped, these areas of an angled groove 34 are formed in the sidewall 11 and structurally mirror-symmetrically incorporated in the opposite wall of the lid. In these guides 12 grab the journals 46 and the two sides of the transducer 40 arranged locking pieces 44 one.

In the 2 the infeed position of the collection device is shown. In this case, a (not shown) sliding door by means of a driver 51 held in the closed position. The driver 51 is part of a fitting 50 which is attached to the sliding door. The collection device is the body side, for example, mounted on a cabinet.

Of course, these components can also be mounted exchanged.

If now the sliding door starting from the retraction position according to 2 is opened, so moves the driver 51 with the door in picture plane to the right and pick up the pickup 40 at the stop 43 With. The locking pieces slide 44 and the journals 46 in the lead 12 , The feather 60 is stretched and the piston rods 31 each pulled out of its cylinder in opposite directions, until the functional position according to 3 is reached.

Then run over the locking pieces 44 in the transition region of the linear section 12.1 and park section 12.2 formed leadership area 12.3 , in this case a leading edge. Because the spring 60 spaced to the storage 33 at the pickup 40 engages, a torque is generated in a clockwise direction.

This torque tilts the transducer 40 in the in 4 shown freewheeling position. This becomes possible because the journals 46 in the linear section 12.1 can be rotated and the locking pieces 44 no longer hinder this distortion. In the tilted position, the transducer 40 with the locking pieces 44 against the feed direction positively in the park section 12.2 blocked. The driver 51 then enters the freewheel, like 4 shows until the door is open.

When closing the door this can be moved as long as freewheel until the driver 51 on the stop 41 meets. Because the stop 41 eccentric for the storage of the location pins 46 stands, the locking pieces 44 on the occurrence of the driver 51 from the park section 12.2 dug (see 3 ). The stop 43 then engages behind the driver 41 , The feather 60 then pulls the driver 51 by means of the transducer 40 in the direction of the feed position. At the same time the dampers 30 active. They brake the pulling movement of the spring 60 , The 2 again shows the feed position in the damper 30 are provided pressure-free.

In the 5 to 7 an alternative embodiment of the invention is shown. While according to 1 to 4 the dampers 30 connected in series, thus adding the attenuation paths and the attenuation rate in about the attenuation rate of a single damper 30 corresponds, are according to 5 to 7 the attenuation rates are added and the attenuation path corresponds to the attenuation path of a single attenuator 30 ,

As the 6 shows, is again a housing 10 used in approximately the case design according to 1 to 4 equivalent.

In the sidewall 11 and the wall of the lid is again the same guide 12 built-in. It is in the spring receptacle 13 the same spring 60 used. With regard to the explanation of the same components designating reference numerals, reference is made to the above statements. In the recording 17 of the housing 10 become two identical dampers 30 used. The lower damper 30 is at his groove 34 with holders 18 of the housing 10 kept axially immovable.

The upper damper 30 can be moved linearly in the direction to the right. The dampers 30 correspond to the dampers 30 according to 1 to 4 , They are with the suspensions 32 their piston rods 31 by means of a warehouse 33 to the transducer 40 coupled. In this case, the transducer 40 a bearing bore, which is in alignment with a bearing bore of the suspension 32 stands. Through the bearing bore is a bearing pin for forming a bearing 33 inserted, wherein it is pressed into a bearing bore and rotatable in the other.

The pickup 40 corresponds in its function and mode of action according to the 1 to 4 , Instead of the journal 46 becomes the bearing pin of the bearing 33 in the lead 12 guided. The spring element 42 is with one arm 47 opposite the cantilever of the pickup 40 stabilized.

The operation corresponds to the according 1 to 4 However, wherein the damping device is functionally different. When opening the door becomes the pickup 40 moved to the right and the piston rods 31 pulled out in parallel. After crossing the management area 12.3 the pickup tilts 40 in the freewheel position and gives the driver 51 free again, like this 7 shows. Because the rotation of the pickup 40 around the axis of rotation of the bearing 33 of the lower damper 30 is done, the upper damper 30 a little bit linear in the housing 10 postponed, which is due to the identical design of the damper 30 necessary is. The closing movement of the door and the retraction of the driver 51 takes place analogously 1 to 4 with the difference that both dampers 30 are connected in parallel and at the same time damping on the transducer 40 act.

Claims (12)

Feeding device for sliding doors, school baths etc. with a damping device and a spring ( 60 ), each directly or indirectly to a transducer ( 40 ) act, the Transducer ( 40 ) is movable between a retracted position and a freewheeling position, characterized in that the damping device comprises two dampers ( 30 ) whose damping effect in series on the transducer ( 40 ) acts. Feeding device for sliding doors, school baths etc. with a damping device and a spring ( 60 ), each directly or indirectly to a transducer ( 40 ), wherein the transducer ( 40 ) is movable between a retracted position and a freewheeling position, characterized in that the damping device comprises two dampers ( 30 ) whose damping effect parallel to the transducer ( 40 ) acts. Feeding device according to claim 1, characterized in that the dampers ( 30 ) to a displaceable actuator ( 20 ) are coupled. Feeding device according to claim 3, characterized in that the actuating element ( 20 ) in a slide guide ( 14 ) of a housing ( 10 ) is linearly adjustable. Feeding device according to claim 1, 3 or 4, characterized in that the dampers ( 30 ) are formed in the form of fluid dampers with a cylinder and an adjustable piston therein, that on the piston a piston rod ( 31 ) and that the piston rods ( 31 ) the damper ( 30 ) are displaceable in opposite directions. Feeding device according to claim 5, characterized in that the piston rods ( 31 ) are adjustable parallel to each other. Feeding device according to one of claims 1 or 3 to 6, characterized in that a damper ( 30 ) to the transducer ( 40 ) and the other damper ( 30 ) to a housing-side holder ( 15 ) are coupled. Feeding device according to claim 2, characterized in that the dampers ( 30 ) are formed in the form of fluid dampers with a cylinder and an adjustable piston therein, that on the piston a piston rod ( 31 ) and that the piston rods ( 31 ) the damper ( 30 ) act in the same direction. Feeding device according to claim 2 or 8, characterized in that both dampers ( 30 ) by means of pivot bearings ( 33 ) to the transducer ( 40 ) are coupled. Feeding device according to one of claims 1 to 9, characterized in that the sensor ( 40 ) in a guided tour ( 12 ) is adjustable between the retraction position and the freewheeling position that the leadership ( 12 ) a parking section ( 12.2 ), in which the transducer ( 40 ) is tilted relative to its orientation in the retracted position. Feeding device according to one of claims 1 to 10, characterized in that the damper ( 30 ) or the dampers ( 30 ) rotatably mounted on the transducer ( 40 ) is / are coupled (bearings ( 33 )), and that the spring ( 60 ) spaced from the bearing ( 33 ) to the transducer ( 40 ) is coupled. Feeding device according to one of claims 1 to 11, characterized in that identical damper ( 30 ) are used.

Images