EP0645544B1 - Driving and guiding system for moving a load - Google Patents

Abstract

A driving and guiding system for a load (1) to be moved essentially consists of a rodless pressure-medium cylinder, the cylinder body (2) of which contains a piston (3) guided in a longitudinally displaceable manner, and of a power-transmission element (4) which is attached to the piston (3) of the pressure-medium cylinder, interacts via rollers (5) mounted on it with tracks (6) arranged in the longitudinal direction of the cylinder body (2), and is connected to the load (1) to be moved. The cylinder body (2) is held in a fixed position, for example on a vehicle or building. The cylinder body (2) and the tracks (6) are formed together by a one-piece profile. This profile contains the rollers (5), which are provided in pairs in each case, are divided functionally into bearing rollers (5a) and supporting rollers (5b), and are made of non-metallic material at least in the area of their running surface. The bearing rollers (5a) and the supporting rollers (5b) are arranged under the cylinder body (2), the axis of rotation of these rollers (5a, 5b) and the direction of action of the load (1) being at an angle of 90 DEG to one another. <IMAGE>

Description

The invention relates to a drive and guidance system for a load to be moved, consisting of a rodless one Pressure cylinder, the cylinder body one contains longitudinally guided piston, and one on Piston of the pressure medium cylinder connected power transmission element, the one attached to each pair and within the boundary contour of the cylinder body lying rotating body, one separately Support function and to perform a supporting function with others raceways arranged in the longitudinal direction of the cylinder body cooperates and in connection with the load to be moved stands, with the cylinder body stationary - for example a vehicle or building.

EP-A-0 542 211 is a drive and guidance system with the features of the preamble of claim 1 known. As for example from Fig. 3 of this document emerges, the cylinder body 12 has a width that is significantly greater than its height. The cylinder body 12 is from a bridge-shaped power transmission element 14 gripped laterally, so that the width of the entire system is also enlarged. On this power transmission element 14 on separate axes 55a to 55d stored rotating bodies 56a to 56d are as idlers (56a and 56b) and as support rollers (56c and 56d) with each small diameter, which consequently with high Speed. The roles mentioned obviously exist made of metal and work with special raceways 58a to 58d together, which as separate parts on the cylinder body 12 are held. Otherwise there are the support rollers 56a, 56b and the support rollers 56c, 56d laterally next to the inside of the cylinder body 12 guided piston 70.

DE-OS 33 28 786 is also a drive and Guide system with a rodless pressure medium cylinder known, the piston with a cross section approximately T-shaped power transmission element is connected. The two horizontally arranged legs of this transmission element each carry a concave or convex shape Roller. These roles are about vertical axes rotatable and work with the reverse convex or concave Raceways on the narrow sides of a guide rail together, the horizontal and parallel to the cylinder body runs. The cylinder body and the guide rail are connected by screws. In addition, on Cylinder body screwed a cladding profile that the Cylinder body and the power transmission element in the area surrounds the roller guide. A disadvantage of this known The drive and guidance system is based on its structure separate parts using separate screws and holes and threads to be created are joined together Need to become. It is also considered unfavorable that special cladding profile resulting in greater need Installation space viewed. Otherwise, the one described above Active connection of the profile rollers with the raceways of the Guide bar unsuitable for the case that on the power transmission element a load connected with considerable weight is. Because in this case all vertical forces would have to and also effective bending moments transverse to the direction of movement disadvantageously solely through the profiles of the Roles and the guide bar are included.

The invention has for its object a drive and Guide system of the generic type in the simplest possible Way to design such that a particularly compact and inexpensive design is available; high should Vertical forces and bending moments perfectly absorbed and also achieves quiet, smooth running behavior that also allows the load to be moved manually.

• die Rotationskörper als Tragräder und als Stützräder ausgestaltet sind und zumindest im Bereich ihrer Lauffläche aus nichtmetallischem Werkstoff bestehen, wobei diese Tragräder und Stützräder unmittelbar mit solchen Laufbahnen zusammenwirken, die durch ein mit dem Zylinderkörper einstückiges Profil gebildet sind,
• der Zylinderkörper eine Bauhöhe aufweist, die derart größer ist als seine Baubreite, daß die Tragräder und die Stützräder vollständig unterhalb des Kolbens vertikal angeordnet sind,
• die Tragräder und die Stützräder auf einer gemeinsamen horizontalen Achse des Kraftübertragungselements gelagert sind, wobei an dieser Achse mittig zwischen den Tragrädern ein Tragarm des Kraftübertragungselements angreift.

This object is achieved in that

• the rotating bodies are designed as supporting wheels and as supporting wheels and are made of non-metallic material at least in the area of their running surface, these supporting wheels and supporting wheels interacting directly with raceways which are formed by a profile integral with the cylinder body,
• the cylinder body has an overall height which is so greater than its overall width that the supporting wheels and the supporting wheels are arranged vertically completely below the piston,
• the support wheels and the support wheels are mounted on a common horizontal axis of the power transmission element, with a support arm of the power transmission element acting centrally on this axis between the support wheels.

According to a preferred embodiment of the invention provided that the cylinder body one inside the one-piece profile arranged parallel to the raceways, has sealed longitudinal slot. This is done according to a further development of the invention, the power transmission on the one hand between the support wheels or the support wheels and the careers and on the other hand between the Profile and its fixed mounting in common working planes, so that no the width of the sealed longitudinal slot changing moments occur.

With regard to a tilting movement of the power transmission element there is an exclusive longitudinal guide a next embodiment of the invention in that the Carrier wheels and the support wheels to achieve a possible large support and support base at the ends of the power transmission element are stored. It is recommended that e.g. B. for reasons of rational production, after a complementary embodiment of the invention that the to End of the power transmission element arranged support wheels and support wheels symmetrical with respect to its longitudinal center are arranged.

In order to always guide the power transmission element without play, a next embodiment of the invention is that the training wheels can be adjusted in the direction of their career the power transmission element are connected.

The already by the at least extensively non-metallic Casters achieved quiet and smooth running of the Power transmission element is according to a further embodiment the invention further improved in that the Raceways and the support wheels as well as the support wheels in their Cross section are designed so that the roles on both Sides in line contact with the raceways stand.

To keep the noise level as low as possible, is provided according to another embodiment of the invention, that the taxiway of the power transmission element within the profile is limited by adjustable stops, that interact with noise-absorbing elastic blocks.

If, in relation to the load to be moved, control and Control functions are desired or an additional one Drive task is to be fulfilled, offers another Embodiment of the invention that at the two Longitudinal ends of the profile each have a pulley for a Power transmission element connected band or rope is stored.

For a synchronous movement of two loads, for example of two wings of a sliding door, is after one Training according to the invention provided that on the line or Rope a second power transmission element for another, especially connected to the opposite moving load is, this second power transmission element also has the support wheels and the support wheels, but not with the piston of the pressure cylinder is connected.

In the sense of the control and control functions already mentioned offers a further embodiment of the invention assumes that one of the two deflection rollers with a position measuring system is coupled. An inventive one exists for the same purpose Design in that one of the two pulleys itself designed as a signal disc or with a separate one Signal disc is coupled, this pulley or the separate signal disc with simple electrical Signal generators interact in such a way that the pulses of the Signaling device for speed monitoring and / or for the detection of the direction of movement of the load can be evaluated.

To be able to fix the load to be moved, one sees further embodiment of the invention that within the one-piece profile stored a locking mechanism is that with the power transmission element or associated therewith Share interacts positively.

With a view to particularly long operational use the carrying wheels is according to a next embodiment Invention proposed that between the one-piece Profile and suspension of the load to generate magnetic forces Relief of the idler wheels are effective. In the interest of wanted compact design is an inventive Supplement in that the profile with grooves for receiving strip-shaped permanent magnets or steel strips is provided.

The drive and guide system according to the invention is particularly characterized by its compact design, the especially in tight spaces. The one-piece profile, in which all drive, support and Guide elements are summarized, as well as the invention The arrangement and design of the castors meet inexpensive way all requirements for a high Resilience and a smooth-running, noise and low-maintenance operation.

Fig. 1A

ein erfindungsgemäßes Antriebs- und Führungssystem

Fig. 1B

sowie einen Teilbereich eines zugeordneten Bauteils, in Seitenansicht,

Fig. 2

die Draufsicht zu Fig. 1A,

Fig. 3

den Schnitt nach der Linie A - A in Fig. 1A,

Fig. 4

den Schnitt nach der Linie B - B in Fig. 1A,

Fig. 5

den Schnitt nach der Linie C - C in Fig. 1A,

Fig. 6

den Schnitt nach der Linie D - D in Fig. 1A.

An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it

Fig. 1A

an inventive drive and guidance system

Figure 1B

as well as a partial area of an assigned component, in side view,

Fig. 2

the top view of Fig. 1A,

Fig. 3

the section along the line A - A in Fig. 1A,

Fig. 4

the section along the line B - B in Fig. 1A,

Fig. 5

the section along the line C - C in Fig. 1A,

Fig. 6

the section along the line D - D in Fig. 1A.

The screwed to a fixed bracket 7 one-piece profile has a cylinder body 2 one rodless pressure medium cylinder and raceways 6 for Roll up 5. The one with a sealed longitudinal slot 2a provided cylinder 2 contains a longitudinally guided Piston 3, on which a power transmission element 4th is connected, which is similar to a carriage and present embodiment of several together screwed components is formed. This element 4 stands via support arms 4a with a load to be moved 1 in Connection, for example a relatively heavy sliding door of glass.

The arranged in profile below the cylinder body 2, mounted at the ends of the power transmission element 4 Rollers 5 are functional in support wheels 5a and support wheels 5b divided and provided in pairs. The support wheels 5b are adjustable in the direction of their career 6 with the Power transmission element 4 connected. The careers 6 and the at least in the area of their tread made of non-metallic Material formed support wheels 5a and the support wheels 5b are cross-sectional in such a way matched that the rollers 5a and 5b on both sides in stand in linear contact with the raceways 6. This can be easily achieved, for example, by the fact that Rollers 5a and 5b in the area of their tread as shown semicircular and the raceways 6 similar in cross section a Gothic arch (not shown).

The axis of rotation of the support wheels 5a and the support wheels 5b and the direction of action of the load 1 to be moved are below at an angle of 90 ° to each other. As especially from the 3 and 4 can be seen, the power transmission takes place on the one hand between the supporting wheels 5a and the support wheels 5b and the raceways 6 and on the other hand between the profile and the fixed bracket 7 in common working planes, so that no change the width of the longitudinal slot 2a Moments occur.

Between the one-piece profile and the suspension of the load 1 can relieve the magnetic forces Carrier wheels 5a be effective. The carrying wheels 5a are then not loaded with the full weight of load 1. The Profile has grooves 11a in which strip-shaped permanent magnets or steel strips 11 can be embedded.

1A, 1B and 3 is at the two longitudinal ends of the Profiles each have a guide roller 9 for a rope 10, the Z. B. made of steel with a plastic sheath consists. This rope 10 is by a clamp connection (See Fig. 6) attached to the power transmission element 4. On the opposite in the longitudinal direction and based on Fig. 1B rear side of the drive cable 10 is a second Power transmission element 4 'for another, in opposite directions moving load 1 'connected. The second power transmission element 4 'also has the support wheels 5a and Support wheels 5b. However, it is not with the piston 3 of the Pressure cylinder connected.

For moving the load 1, the piston 3 of the pressure medium cylinder on one side or the other with air acted upon. The taxiway of the power transmission element 4 is adjustable by arranged inside the profile Stops 8 limits that with noise-damping, here attached to the ends of the power transmission element 4 cooperate elastic blocks 8a. About the described Rope 10 also become the second power transmission element 4 'and thus the further load 1' moves.

To monitor the speed of the load 1 to be moved to be able to recognize and / or their direction of movement can, is one of the two pulleys 9 as a signal disc trained, for example by a special profile of their face. Alternatively, one of the two Deflection rollers 9 coupled to a separate signal disk be. Said deflection roller 9 or the separate signal disk works with simple electrical signal generators together, whose the speed of rotation and the direction of rotation appropriate impulses for the desired control and Control functions can be evaluated.

Within the one-piece profile is an unsigned one Locking mechanism stored with the Power transmission element 4 interacts positively. This mechanism, the z. B. by hand using a Square key or can be actuated by a magnet, allows the load to be moved 1 and possibly also to be fixed the further load 1 'connected via the cable 10.

List of reference numbers

1

load to be moved

1'

further load

2nd

Cylinder body

2a

sealed longitudinal slot

3rd

piston

4th

Power transmission element

4 '

second power transmission element

4a

Beam

5

Rotational body

5a

Carrying wheels

5b

Training wheels

6

career

7

stationary bracket

8th

adjustable stop

8a

noise-absorbing elastic block

9

Pulley

10th

Rope or ribbon

11

strip-shaped permanent magnet or steel band

11a

Groove of the one-piece profile

Claims (15)

1. A driving and guiding system for a load (1) to be moved, comprising a pressure-medium cylinder which has no piston rods and the body (2) of which contains a piston (3) guided in a longitudinally displaceable manner, and a power-transmission member (4) which is attached to the piston (3) of the pressure-medium cylinder and which cooperates - by way of rotational members (5) mounted respectively in pairs on the said power-transmission member (4) in each case and situated inside the boundary outline of the cylinder body (2) and performing separately a carrying function on the one hand and a supporting function on the other - with running paths (6) arranged in the longitudinal direction of the cylinder body (2) and is connected to the load (1) to be moved, wherein the cylinder body (2) is held stationary, for example on a vehicle or building, characterized in that

   the rotational members (5) are designed in the form of carrying wheels (5a) and as supporting wheels (5b) and consist of non-metallic material at least in the region of their running face, wherein the said carrying wheels (5a) and supporting wheels (5b) cooperate directly with those running paths (6) which are formed by a section which is integral with the cylinder body (2),

   the cylinder body (2) has a structural height which is greater than the structural width thereof in such a way that the carrying wheels (5a) and the supporting wheels (5b) are arranged vertically completely below the piston (3), and

   the carrying wheels (5a) and the supporting wheels (5b) are mounted on a common horizontal shaft of the power-transmission member (4), wherein a carrying arm (4a) of the power-transmission member (4) engages on the said shaft centrally between the carrying wheels (5a).
2. A driving and guiding system according to Claim 1, characterized in that the cylinder body (2) has a sealed longitudinal slot (2a) situated in the interior of the one-piece section parallel to the running paths (6).
3. A driving and guiding system according to Claim 2, characterized in that the power transmission between the carrying wheels (5a) or the supporting wheels (5b) and the running paths (6) on the one hand and between the section and the stationary retaining means (7) thereof on the other hand takes place in common operative planes so that no moments occur which would alter the width of the sealed longitudinal slot (2a).
4. A driving and guiding system according to one of Claims 1 to 3, characterized in that the carrying wheels (5a) and the supporting wheels (5b) are mounted in each case on the ends of the power-transmission member (4) in order to achieve as large as possible a carrying and supporting base.
5. A driving and guiding system according to Claim 4, characterized in that the carrying wheels (5a) and supporting wheels (5b) mounted on the ends of the power-transmission member (4) are arranged symmetrically with respect to the longitudinal centre thereof.
6. A driving and guiding system according to one of Claims 1 to 5, characterized in that the supporting wheels (5b) are connected to the power-transmission member (4) so as to be adjustable in the direction of their running path (6).
7. A driving and guiding system according to one of Claims 1 to 6, characterized in that the running paths (6) and the carrying wheels (5a) as well as the supporting wheels (5b) are formed in their cross-section in such a way that the wheels (5a, 5b) are in linear contact with the running paths (6) on both sides.
8. A driving and guiding system according to one of Claims 1 to 7, characterized in that the rolling path of the power-transmission member (4) is defined inside the section by adjustable stops (8) which cooperate with sound-proofing resilient blocks (8a).
9. A driving and guiding system according to one of Claims 1 to 8, characterized in that one respective reversing roller (9) for a belt or rope (10) attached to the power-transmission member (4) is mounted on the two longitudinal ends of the section in each case.
10. A driving and guiding system according to Claim 9, characterized in that a second power-transmission member (4') for a further load (1') to be moved, in particular in the opposite direction, is attached to the belt or rope (10), wherein the said second power-transmission member (4') is likewise provided with the carrying wheels (5a) and the supporting wheels (5b) but is not connected to the piston (3) of the pressure-medium cylinder.
11. A driving and guiding system according to Claim 9 or 10, characterized in that one of the two reversing rollers (9) is coupled to a path-measuring system.
12. A driving and guiding system according to one of Claims 9 to 11, characterized in that one of the two reversing rollers (9) is itself constructed as a signal disc or is coupled to a separate signal disc, wherein the said reversing roller (9) or the separate signal disc cooperates with simple electrical signal transmitters in such a way that the pulses of the signal transmitters can be evaluated in order to monitor the speed and/or in order to recognize the direction of movement of the load (1).
13. A driving and guiding system according to one of Claims 1 to 12, characterized in that a locking mechanism, which cooperates in a positively locking manner with the power-transmission member (4) or with parts connected thereto, is mounted inside the one-piece section.
14. A driving and guiding system according to one of Claims 1 to 13, characterized in that magnetic forces for relieving the carrying wheels (5a) are effective between the one-piece section and the suspension of the load (1).
15. A driving and guiding system according to Claim 14, characterized in that the section is provided with grooves (11a) for receiving strip-shaped permanent magnets or steel strips (11).

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