EP1353121B1 - Triangular suspension device for suspended lamps - Google Patents

Description

The invention relates to a suspension suspension for suspension lamps with a flexible, strand-like support member having two end portions for attachment to a suspension lamp and a central deflection, wherein the plane adjoining the deflection substantially rectilinear areas, a plane is clamped, and wherein a cover side fastened Suspension element is provided, through which the strand-like support member is feasible and fixable by means of a clamping means, so that when dissolved clamping means the lamp is pivotable about a substantially horizontal axis and can be fixed in a selected desired position by means of the clamping means.

In a prior art triangle suspension, the suspension element can be fastened by means of a wire rope extending vertically in the mounted state, wherein a clamping screw for clamping the retaining element designed as a wire rope is provided in extension of the wire rope. The screw axis extends in this case in the extension of the suspension cable and between the two adjacent to the deflection areas of the wire rope. To operate the clamping screw this must be taken manually in extension of the wire rope to exercise sufficient torque to this can. This handling is due to the two adjacent sections of the However, wire rope-shaped retaining element obstructed. However, a sufficient spacing of the adjacent sections of the holding element by a suitable cable guide would be structurally complex due to the comparatively high weight of the lamp. Suspensions of other types are from the JP 04 112406 A . FR 707 337 A . US Pat. No. 1,662,568 A . DE 178 394 C and DE 426 935 C known.

The invention has for its object to provide a Triangle suspension for suspension lights, in which the orientation of the hanging people is easily changeable or adjustable.

This object is achieved according to the invention by a triangle suspension, in which the clamping means is arranged outside of the area enclosed by the deflection region of the strand-like holding element. As a result, the clamping means is manually operated easily and without hindrance, so that the lamp under Entarretierung the clamping means simply in their desired position can be transferred or the position is changed. The manual attack on the clamping means can thereby be made outside of the area which is enclosed by the sections of the holding element adjoining the deflection area.

Preferably, the clamping means for clamping or Entarretierung of the strand-like holding element is designed to rotate about an axis which forms an angle with the plane defined by the adjacent to the deflection portion of the holding element level plane, preferably an angle of greater than 30 or 45 degrees, in particular approximately 90 degrees , The clamping means can thus protrude laterally from the suspension, whereby this is easy to operate. Alternatively, the clamping member may be pivotable about an axis which includes an angle with the plane normal of the plane defined above, preferably an angle greater than 30 or 45 degrees, in particular about 90 degrees. The pivoting of the clamping element thus takes place outside the above-defined plane, whereby the access to the clamping means is not through the sections of the strand-shaped Retaining element is obstructed.

The strand-like retaining element is preferably in the form of a rope, e.g. executed a wire rope, optionally, the holding element may also be designed in the manner of a band or other strand-shaped flexible element.

Preferably, the clamping means with a region under linear contact with the strand-like holding element under application of force to this can be applied, wherein the line can also be arcuate, in particular approximately circular arc-shaped executed. The abutment region can in particular be designed as a separate clamping piece, which can be subjected to a force by an actuating means against the retaining element.

Preferably, the clamping means on a clamping bush, which is kraftbeaufschlagbar with its front side by an actuating means against the retaining element. Optionally, the cylindrical peripheral surface of a clamping bush, e.g. can be expanded by an actuating means are subjected to force against the holding element, or the clamping means can be designed as an eccentric, which may have a spherical against the holding element can be applied eccentric surface. The abutment region of the holding element on the clamping piece can extend over an angle of more than 30 degrees, preferably more than 90 degrees, in particular approximately 180 degrees, and also more.

The clamping means may comprise a clamping disc for applying force to the clamping piece against the strand-like holding element, wherein the clamping disc has a clamping piece, in particular a clamping bush, by cross-threaded pin, which can be screwed into a corresponding thread of the suspension element. As a result, the holding force can be adjusted to the holding element by the Eindrehausmaß the clamping disk. Preferably, the clamping disc is designed such that its peripheral surface manually vulnerable to rotation of the clamping disc is. As a result, the holding force can be adjusted to the holding element by the Eindrehausmaß the clamping disk. Preferably, the clamping disc is designed such that its peripheral surface is manually vulnerable to the rotation of the clamping disc, including the peripheral surface should have a corresponding height. As a result, with a corresponding diameter of the clamping disk, a high torque can be transmitted to the clamping piece without the need for disruptive projections on the clamping disk. For example, the diameter of the clamping disc may have more than twice or three times, preferably greater than or equal to five or eight times the diameter of the threaded pin.

The suspension element and the clamping means, in particular in the form of a clamping disk, can be designed as plate-like components arranged parallel to the plane spanned by the sections of the strand-shaped holding element adjoining the deflection region. Suspension element and clamping means are in this case preferably arranged immediately adjacent to each other and have in the contact area substantially matching outer dimensions, wherein the difference in the outer dimensions preferably less than 25 percent or less than 10 percent, more preferably less than 5 percent, or the outer dimensions practically match. Suspension element and clamping means may in this case have a circular circumference, in particular when the clamping means is actuated by rotation. As a result, the suspension element appears optically as a component together with the clamping means. Preferably, in this case, the peripheral surface of the clamping means is slightly above the peripheral surface of the adjacent portion of the suspension element, so that the clamping means is easily manually operated.

Particularly preferably, provided on the suspension element ceiling-side fastener is secured by the clamping means against accidental release of this. This can be the be completely closed.

In a particularly preferred embodiment, the suspension element has a guide for the strand-like holding element with at least one arranged within the suspension element deflecting, so that the adjacent mounted at mounted light substantially rectilinear portions of the holding element are disposed within the suspension element. The deflection region can in this case in particular arcuate, e.g. be formed circular arc. As a result, based on changes in position of the lamp more stable suspension of the same, so that, for example, changes in position of the lamp due to external forces are reduced.

Regardless of this, but particularly preferably in combination with the above, the suspension element may have a guide for the strand-shaped retaining element with at least two, preferably three or more deflection regions for the retaining element. The holding element can hereby be performed meandering, wherein the deflections each preferably half or full thickness of the holding element, e.g. exceed the radius or diameter of the same. For example, the offset of the holding element at adjacent deflection regions or over the entire deflection distance can correspond to more than three or five times the thickness of the holding element.

Preferably, the deflection radius of at least one, several or all deflection is greater than / equal to two or three times, preferably greater than / equal to five times the thickness of the support member corresponding to the respective diameter in wire-shaped elements. The deflection radii of adjacent deflection regions may in this case be the same or different from one another. As a result, comparatively sharp deflection radii, which can lead to a difficult change in position of the luminaires or, in the case of frequent actuation, to damage of the retaining element, are avoided. Optionally, in one or more Diverting also be provided deflection rollers. In particular, at at least one, preferably several or all deflection regions, in particular at each of the first and last of the deflection of the meandering holding element guide, the contact areas on the deflections by more than 30 or 60 degrees, preferably more than 90 degrees, more preferably about 180 degrees or more.

Preferably, the centers of three or more deflection areas are at least approximately on a straight line, which is preferably arranged horizontally when the lamp is mounted, whereby a uniform change in position of the lamp is possible. Preferably, the centers of two deflection regions, in particular in each case of two adjacent deflection regions or of the respective first and last deflection region of the holding element guide, are mounted on a horizontal straight line when the luminaire is mounted. The deviation of the deflection regions from the straight line is preferably less than 25 to 10%, preferably less than 5% of the respective deflection radius.

The holding element can be guided linearly in the deflection areas on top and bottom sides with little play or, if necessary, sections can be guided freely above and / or below on the underside.

The lateral guide for the holding element can be designed in particular as a groove which can be incorporated into the suspension element. The groove is preferably provided at one or both deflection regions, which are provided at the inlet or outlet of the holding element in the suspension element. Preferably, the groove extends in each case in the region of greatest curvature of the deflection region and / or on the adjacent, pointing to the outside of the suspension element inlet or outlet region of the holding element from the suspension element. These regions may have a smaller radius of curvature or be linear compared to the deflection region. Alternatively or additionally, between the outer wall of the suspension element facing deflection a guide groove within the suspension element, for example, be provided in the region of another deflection. The width of the groove can be dimensioned such that the holding element is guided with little play or virtually free of play in the groove. The groove can also have a small undersize and thereby exerts additional holding forces on the holding element, preferably followed in the vertical direction, a groove region in which the tether is longitudinally movable without holding forces of the groove wall through the groove. Through the groove can thus take place in particular in the inlet and / or in the outlet region of the holding element from the receiving element an exact alignment of the holding element, in particular after a determination of the position of the associated lamp, so that the orientation of the holding element and thus the light relative to the Suspension element is always exactly defined.

The depth of the groove can be ≥ 1/4 or 1/3, z. B ≥ 1/2 the thickness of the holding element, but optionally also have a smaller depth.

Preferably, the suspension element has at least two guides for holding elements into which a retaining element can be arranged simultaneously or preferably optionally. Both guides can be assigned to the same inlet and outlet of the holding element from the suspension, possibly also different. The at least two guides for the holding element may differ in particular in the maximum receiving diameter or the width for the associated holding element, additionally or alternatively also in the number and / or the radii of the deflection regions and / or the holding force exerted on the holding element under comparable conditions, eg due to different cross sections, lengths, surface textures of the guide areas u. Like .. The suspension is thus easily adaptable by selecting the appropriate guide to the particular conditions.

The suspension element may have a receiving space for the clamping piece, which merges into a receiving space for the ceiling-side fastening element, the latter can be completed by arranging the clamping piece on the suspension element on at least one side, in particular on the underside. As a result, the suspension element, which can be embodied in particular as a plastic or light metal injection molded part, is particularly easy to produce.

The introduced in the suspension guide channel for the holding element can be laterally closed at least over a partial length by the clamping piece, wherein the guide channel is formed such that the holding element is laterally inserted into the guide channel of the suspension, whereby the assembly of the light suspension is much easier. Preferably, the guide channel is defined by the clamping piece or directly by the clamping means, e.g. a clamping disc and / or the receptacle of the suspension element for the cover-side fastening element closed by the clamping piece and / or the clamping means when the clamping means practically no holding force on the holding element more.

In this case, the respective receptacle for the retaining element and / or the cover-side fastening element in the completely unlocked state of the clamping means may be partially, e.g. slit-shaped, are released, as long as this opening does not allow unintentional removal of the retaining element and / or ceiling-side fastener from the respective receiving space.

The guide channel for the holding element can be formed including two deflection areas in each case by a U-shaped projection of the suspension element, wherein the strand-shaped holding element extends over the two upper flanks of the U-shaped projection and the trough arranged between them. This U-shaped projection can be bounded on one side by a base plate of the receiving element and on the other side by the clamping means, so that the holding element can be guided between them. The U-shaped projection may have an angular extent of greater than or equal to 30 or 45 degrees, preferably greater than or equal to 90 °, in particular approximately 180 degrees or more.

The suspension element according to the invention may also be associated with an asymmetrically suspended luminaire, so that different lengths of the areas of the retaining element extending from the suspension element to the luminaire are present. This is the case, in particular in luminaires with a centerless center of gravity, e.g. with unilaterally arranged utilities.

• Fig. 1 eine Frontansicht einer montierten erfindungsgemäßen Aufhängung,
• Fig. 2 eine Schnittdarstellung eines Aufhängeelements der Aufhängung nach Fig. 1,
• Fig. 3 eine frontseitige Ansicht (Fig. 3A), eine Querschnittsansicht (Fig. 3B) und eine Seitenansicht (Fig. 3C) des Basisteils des Aufhängeelements nach Fig. 2.
• Fig. 4 eine perspektivische Ansicht einer weiteren Ausführungsform eines Aufhängeelementes (Fig. 4a) und eine Schnittdarstellung desselben (4b).

The invention is described below by way of example and explained by way of example with reference to the figures. Show it

• Fig. 1 a front view of a mounted suspension according to the invention,
• Fig. 2 a sectional view of a suspension of the suspension according to Fig. 1 .
• Fig. 3 a front view ( Fig. 3A ), a cross-sectional view ( Fig. 3B ) and a side view ( Fig. 3C ) of the base part of the suspension element Fig. 2 ,
• Fig. 4 a perspective view of another embodiment of a suspension element ( Fig. 4a ) and a sectional view of the same (4b).

The triangular suspension 1 according to the invention has a substantially plate-shaped suspension element 2, through which a strand-shaped retaining element, which is referred to below as a wire rope 3, is performed. The wire rope 3 has this a deflection region 4 arranged in the suspension element and sections 5 which are adjacent to the latter and substantially luminous when the luminaire is mounted, wherein the end regions of the wire rope 3 (not illustrated) can be fastened to a luminaire by conventional means. Further, the suspension element 2 has a cover-side fastening element 6, which is also designed according to the embodiment as a wire rope, but can also represent a tab or other suitable fastening element. Further, a clamping means in the form of a clamping bush 7 actuated clamping disc 8 is provided. The clamping disc 8 is in this case rotatable about an axis 9, which is perpendicular to the plane that connect through the two adjoining the deflection region 4 sections 5 of the wire rope 3. As a result, the plate-shaped clamping disc 8 is arranged outside of the enclosed by the two sections 5 of the wire rope angular region 10 and thus particularly easy to access manually. Furthermore, the clamping means in the form of the clamping disc 8 is in this case arranged above the plane spanned by the sections 5, whereby the accessibility of the clamping means is further improved.

The wire rope 3 is guided in its deflection in a guide channel 11 of the suspension element 2, wherein the guide channel 11 is designed to be laterally open and laterally closed by the clamping bush 7 over a partial length and further formed by the clamping disc clamping means over the entire width of the collecting element 2 , The guide channel 11 is in this case arranged in the central cross section of the collecting element 2. The front side 12 of the clamping bush 7 can be subjected to force side by pressing the clamping means laterally against the wire rope 3, wherein the width of the guide channel is dimensioned such that at partially or fully actuated clamping means the wire rope against a wall of the guide channel 11, more precisely against the bottom of the groove is pressed under exercise of a sufficient holding power for the lamp.

How out Fig. 1 it can be seen here is the wire rope 3 with an approximately circular arc, which in about 180 degrees on the front side of the clamping bush 7 at. For this purpose, the clamping bush also has a central passage opening through which the threaded pin 14 of the clamping disk, which engages in a corresponding threaded recess, engages, so that the inside of the clamping disk can be subjected to force against the clamping bush when the screwing depth is appropriate.

How out Fig. 2 can be seen, the round clamping disc and the round suspension element in the contact area substantially the same diameter, wherein the end face 15 of the clamping plate protrudes slightly beyond the cylindrical surface 16 of the suspension element 2 and thereby manually is easily taken.

The wire-shaped fastening element 6 is arranged with its widened end portion 17 in a receptacle 18 of the suspension element and is in this case carried out in the laterally open receiving slot 19. The slot 19 is closed laterally by the clamping disc 8, wherein the diameter of the fastening element 6 is dimensioned such that in the wire 3 just completely releasing clamping disc 8 of the suspension between 2 and clamping plate 8 resulting slot is sufficiently narrow to a distance of the fastener. 6 from the receptacle 18 to prevent, including the widened end portion 17 contributes.

The guide channel 11 for the wire rope 3, according to the embodiment 3 deflection areas 20, wherein the end portions of the straight sections 5 of the wire rope are arranged in the collecting element 2. The two most widely spaced deflection regions are formed by the end regions of a U-shaped projection 21, wherein the upper sides 22 of the flanks of the projection have a radius of curvature which corresponds approximately to five times the wire diameter. Because of this comparatively large radius is a slightly sliding Implementation of the wire rope around the deflection of the guide channel possible. The midpoints 23 of the deflection regions 20 are in this case approximately on an approximately horizontal straight line, which passes through the center of the suspension element.

The wire rope 3 has sufficient clearance from the upper-side arcuate projections 24 in the deflection areas. The middle deflection region is guided by the receiving pin 26, which holds the clamping bush 7. The clamping bush 7 is with its outer peripheral surface 27 also virtually free of play on the radially outer wall of the guide channel 11, whereby a tilt-free displacement of the clamping bush 7 is possible.

How out Fig. 3 it can be seen, the receiving space connects directly to the receptacle 18 for the fastening element 6, wherein the receptacle 18 is limited by the peripheral surface of the clamping bush 7 downwards. A rectilinear support region 22a for the holding element adjoins the deflection region 22 towards the outside.

By rotation of the clamping disc 8 thus the wire 3 can be subjected to kraftbeaufschlagt due to the linear contact of the clamping sleeve 7 with high holding force against the suspension element 2, wherein at partial or complete cancellation of the application of force to the clamping bush 7 by the clamping plate 8, the wire rope in the guide channel 11 is longitudinally displaceable and so the lamp can be pivoted to its desired position. Due to the multiple deflection of the wire rope 3 in the guide channel, a certain frictional force is exerted on the wire 3 even with completely unlocked clamping means due to the weight of the lamp further, so that the lamp is exactly positioned. To align the horizontal position of the lamp thus the clamping plate 8 must be loosened.

Fig. 4 shows a suspension element, each in the inlet area 35 and in the outlet region 36 has a guide groove 30 for the wire rope 3. The groove 30 extends, as well as in Fig. 4b shown, over the entire contact area of the wire 3 at the inlet and outlet associated deflection regions 20 of the suspension. The groove depth is about 0.5 mm and corresponds to about half the diameter of the intended wire rope. If appropriate, the groove can also extend over only a part of the contact line of the holding element at the respective deflection region. According to the embodiment, the groove provided at the inlet and outlet areas respectively extends substantially rectilinearly and horizontally in the case of a symmetrical suspension, with the outer end areas being arcuate with respect to the suspension element and running flat with decreasing groove height.

As in Fig. 4b 1, a first guide 11a is provided for a first holding element, which is located between the two deflection regions 20 which are adjacent to the inlet and outlet 35, 36 of the suspension element, and another deflection region, which here passes through the bearing pins 32 for the clamping means is formed extends. Further, a further guide 11b is provided for a holding element of different thickness, for example of larger diameter, which extends above the bearing for the clamping element and is formed here by the ends of the two webs 37. This guide has a total of smaller radii of curvature than the guide 11a. For example, the guides 11a, 11b can be designed for holding elements with diameters of 1 mm or 2.5 mm.

LIST OF REFERENCE NUMBERS

1

suspension

2

suspension

3

Wire rope

4

deflection

5

straight line section

6

ceiling-side fastener

7

terminal Block

8th

clamping disc

9

axis

10

enclosed area

11

guide channel

11a / 11b

guide

12

front

13

threaded recess

14

threaded pin

15

front

16

cylindrical surface

17

end

18

admission

19

slot

20

deflection

21

head Start

22

top

23

Focus

24

head Start

26

spigot

27

peripheral surface

30

groove

32

pivot

35

enema

36

outlet

37

web

Claims (19)

1. Triangular suspension for a suspended lamp having a flexible strand-like holding element having two end regions for fixing to a suspended lamp and a central redirecting region (4), with a plane being defined by the substantially rectilinear portions (5) of the holding element which are adjacent to the redirecting region, with a suspension element (2) which can be fixed at the upper side being provided, the holding element being able to be guided through the suspension element (2) and being able to be fixed thereto by way of a clamping means (7, 8) so that the suspended lamp can be pivoted about a substantially horizontal axis when the clamping means (7, 8) is disengaged and can be fixed in a desired position by means of the clamping means (7, 8), characterised in that the clamping means (7, 8) is arranged outside the region (10) enclosed by the portions (5) of the strand-like holding element (3) which are adjacent to the redirecting region (4).
2. Triangular suspension according to claim 1, characterised in that the clamping means (7, 8) is constructed so as to be rotatable about an axis (9), which encloses an angle with the plane, and/or to be pivotable about an axis which encloses an angle with the normal to the plane.
3. Triangular suspension according to claim 1 or claim 2, characterised in that the clamping means (7, 8) can be acted upon with force via a region (12) with linear abutment against a holding element (3) which is of strand-like form.
4. Triangular suspension according to claim 3, characterised in that the clamping means (7, 8) has a clamping bushing (7) which can be acted upon with force with the front side (12) thereof linearly against the holding element.
5. Triangular suspension according to any one of claims 1 to 4, characterised in that the clamping means (7, 8) has a clamping piece which can be acted upon with force by a rotatable clamping disk (8) against the strand-like holding element, and in that the clamping disk (8) has a threaded stud (14) which engages through the clamping piece and which can be rotated into the suspension element (2).
6. Triangular suspension according to any one of claims 1 to 5, characterised in that the suspension element (2) and the clamping means (7, 8) are constructed as plate-like components which are arranged parallel with the plane which is defined by the holding element portions (5) adjacent to the redirecting region (4) and which have substantially corresponding outside dimensions in the abutment region.
7. Triangular suspension according to any one of claims 1 to 5, characterised in that a fixing element (6) at the upper side is secured to the suspension element (2) by the clamping means (7, 8).
8. Triangular suspension according to claim 7, characterised in that the suspension element (2) has a receiving portion (18), which is upwardly and laterally open in the mounted state, for the fixing element (6) which is at the upper side and which can be introduced laterally into a receiving portion (18), and in that a lateral opening (19) can be closed at least partially by the clamping means (7, 8).
9. Triangular suspension according to any one of claims 1 to 8, characterised in that the suspension element (2) has a guide channel (11) for the holding element having at least one redirecting region which is arranged inside the suspension element (2) and which contains the adjacent, substantially linear portions of the holding element.
10. Triangular suspension according to any one of claims 1 to 9, characterised in that the suspension element (2) has a guide (11) for the holding element having at least two redirecting regions (20) for the holding element.
11. Triangular suspension according to claim 9 or claim 10, characterised in that at least one redirecting region is formed by a receiving stud (26) for a clamping piece (7) of the clamping means (7, 8).
12. Triangular suspension according to any one of claims 9 to 11, characterised in that the redirecting radius of at least one redirecting region is greater than/equal to double the thickness of the holding element.
13. Triangular suspension according to any one of claims 9 to 12, characterised in that a plurality of redirections are provided and in that the centre points (23) of a plurality of redirecting regions (20) are at least substantially on a horizontally arranged straight line.
14. Triangular suspension according to any one of claims 9 to 13, characterised in that the guide (11) for the holding element is constructed at least partially as a groove (30) which laterally guides the holding element.
15. Triangular suspension according to any one of claims 9 to 14, characterised in that at least two guides (11a, 11b) are provided for holding elements.
16. Triangular suspension according to any one of claims 1 to 15, characterised in that the suspension element (2) has a receiving portion for a clamping piece of the clamping means (7, 8), which receiving portion merges into the receiving portion (18) for the fixing element (6) at the upper side.
17. Triangular suspension according to any one of claims 9 to 16, characterised in that the clamping means (7, 8) laterally closes the guide channel (11) for the holding element at least partially.
18. Triangular suspension according to any one of claims 1 to 17, characterised in that a guide channel (11) for the holding element (3) including two redirecting regions is formed by a laterally extending U-shaped projection (21) of the suspension element (2).
19. Triangular suspension according to any one of claims 10 to 18, characterised in that the guide has an inlet (35) and an outlet (36) for the holding element, with a redirecting region for the holding element being provided therebetween when the lamp is mounted, and in that the clamping means (7, 8) is arranged outside the region which is enclosed by the holding element guided by the inlet (35) and the outlet (36).

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