WO1992013233A1

WO1992013233A1 - Connector for hinging a strip-light cover to the light housing

Info

Publication number: WO1992013233A1
Application number: PCT/EP1992/000115
Authority: WO
Inventors: Cornelius Ploeger
Original assignee: Abb Patent Gmbh
Priority date: 1991-01-26
Filing date: 1992-01-21
Publication date: 1992-08-06
Also published as: DE9100900U1; AU1166292A; BR9204107A; EP0522115A1; ATE120268T1; JPH05507812A; DE59201711D1; EP0522115B1

Abstract

The invention concerns a strip light comprising a housing (70) and a transparent cover (71). In order to hinge the cover (71) to the housing (70), a multiplicity of curved brackets (75) are located along the longitudinal edge of the housing (70), while a multiplicity of pins (87) are located along the longitudinal edge of the cover, pointing parallel to the longitudinal edge of the cover. The internal cross-section of each curved bracket (75) is reduced by a cross-pin (79), and located on each pin, near the cross-pin (79), is a groove (89). When the assembled light is opened, the cross-pin engages in the groove, thus preventing the cover (71) from becoming displaced with respect to the housing (70) parallel to their longitudinal edges.

Description

Connection device for the rotatable connection of a lamp tray with a lamp housing

description

The invention relates to a connecting device according to the preamble of claim 1.

A luminaire, in particular a luminaire for receiving long field fluorescent lamps, has a luminaire housing and a transparent luminaire trough or cover trough that is rotatably connected to the luminaire housing at least on one of the longitudinal edges so that the trough can be folded down for opening and replacing the fluorescent lamps.

Such articulated connections are formed, for example, by pins which are integrally formed on the trough and which can be inserted into corresponding eyelets on the housing. There is also the possibility of providing a tab connection between the trough and the housing, as a result of which a type of articulated connection is achieved. The object of the invention is to provide a connection of the type mentioned, which does not allow a displacement of the tub in the longitudinal direction when the tub is folded up vertically. Folded up vertically means the position in which the plane spanned by the free edge of the trough is perpendicular to the plane spanned by the free edge of the housing.

This object is achieved by the characterizing features of claim 1.

The assignment according to the invention of the first flattening and the groove to the transverse pin in the eyelet means that the pin or the pins can be inserted into the eyelet in a position folded down at an angle between the trough and the lamp housing. The pin is then pushed into the eyelet until the assembly position is reached and until the groove lies in the area of the cross pin. The tub can then either be closed or moved to the fully opened position. Characterized in that the cross pin engages in the groove, a security against longitudinal displacement of the tub relative to the housing is achieved.

An advantageous embodiment of the invention can be found in the features of claim 2. As a result, the first flattening is arranged in such a way that when the trough is fully opened or folded down, the flattening rests directly on the corresponding inner surface of the eyelet, and the groove is correspondingly arranged such that the cross pin engages in this position. The cross pin can either be formed by a metal pin, which is inserted into a corresponding opening in the eyelet, or by the fact that the cross pin is integrally formed on the eyelet.

A further advantageous embodiment of the invention can be gathered from the characterizing feature of claim 5.

Due to the inventive assignment of the oblique flattening and the narrowing of the cross-section on the pins and, moreover, also due to the asymmetrical cross-sectional shape of the pins, the tub is placed at an angle to the housing for the purpose of mounting, the pins being aligned with the eyelets. The angle is determined by the angle formed by the flattening with the plane spanned by the free edge of the tub. In this angular position of the trough, the flats run parallel to the cross pins and thus each pin can be pushed into the clear cross section of the eyelet, which is narrowed by the cross pin, until the cross sectional constriction on the pin is in the area of the cross pin. That the trough can be pivoted into the closed position without being hindered by the shape of the pin is then due to the suitable arrangement of the narrowing of the cross section of the pin. The flattened cross-sectional shape fits through the eyelet so that the closing is not hindered; if the trough is now folded up into the vertical position, the cross pin engages in the area of reduced cross-section on the pin which is practically formed as an edge-like groove, and through the axial side walls of this area with reduced cross-section on the pin, which cover the cross pin in the eyelet raidal, the pin or pins and thus the tub are held on the housing so that the tub can no longer be moved in its longitudinal direction. Another solution of the invention can be that, according to the characterizing features of claim 6, no cross pin is provided in the eyelet, but rather the cross pin is arranged on the pin. The cross-sectional enlargement of the pin at its free end, i.e. the hook, engages behind the eyelet in the fully assembled state, that is when the pin is fully inserted into the eyelet, and in this way forms a hindrance so that the pin is not pulled out of the eyelet anymore can be.

Because the total cross-section of the pin with hook is smaller than the cross-section of the eye, the hook can be inserted into the eye, and after fully inserted, the pin rests against the opposite surface, the hook, as mentioned above, the eye engages behind.

The invention and further advantageous refinements and improvements of the invention are to be explained and described in more detail with reference to the drawing, in which three exemplary embodiments of the invention are shown.

Show it:

FIG. 1 shows a perspective partial view of a lamp housing with the lamp pan folded down at an angle,

FIG. 2 shows a sectional view along section line II-II of FIG. 1,

FIG. 3 shows a sectional view along section line III-III of FIG. 1, FIG. 4 shows a partial perspective view of the pin,

Figure 5 is a sectional view according to section line V-V of the

Figure 4,

FIG. 6 shows a sectional view along section line VI-VI of FIG. 4,

FIG. 7 shows a perspective view of a lamp, in the unfolded and unmounted state,

Figure 8 is a sectional view according to the section line

VIII-VIII of the tub according to FIG. 7, a sectional view similar to the sectional view VIII-VIII of FIG. 7 in the assembly position,

FIG. 10 shows a sectional view similar to that of the lamp housing and trough in the folded-down position of the trough according to section line VIII-VIII, a view according to arrow direction XI -XI from FIG. 8,

FIG. 12 shows a further embodiment of the invention, in a representation similar to that in FIG. 7,

Figure 13 is a sectional view along the section line

XIII-XIII of Figure 12, in the assembled state,

FIG. 14 shows a sectional view similar to that according to sectional line XIII-XIII, in the assembly position,

Figure 15 is a view in the direction of arrows XV and

FIG. 16 shows a view in the direction of arrow XVI in FIG. 14. Of the lamp, only part of the lamp housing 10, hereinafter referred to briefly as housing 10, and part of the transparent cover trough 11, referred to briefly as trough 11, are shown in FIG. 1.

A plurality of eyelets 14 are attached to the inner surface of the side wall 12 in the region of the edge flange 13 of the housing; only one eyelet is visible in FIG. 1. Like the others, this eyelet 14 has an opening 15 running in the direction of the longitudinal edge of the housing 13 and a tab 16 with which the eyelet is fastened to the housing or to the side wall 12. Attachments 18 are fastened to the inner surface of the side wall 17 of the tub 11; aucr. only one attachment 18 is shown here. Pins 13 are formed on these and extend in the direction of the longitudinal edge 11a of the tub 11. The pins 19 are inserted into the interior or into the opening 15 of the eyelets 14.

FIG. 3 shows the eyelet 14, which has a hollow profile with a side wall 2 fastened to the inner surface: and a side wall 21 running perpendicular thereto, which is supplemented by a curved wall 22 to form a closed P.ing. A transverse pin 23 runs parallel to the side wall 20, on which the tab 16 is formed (not visible in FIG. 3), which reduces the clear cross section 24 of the eyelet 14 there. The clear distance between the side wall 20 and the cross pin 23 is denoted by d ₃ .

The pin 19 has an asymmetrical cross section with a first flattening 26 which, in the assembled closed state, lies from the tub 11 to the housing 10 against the side wall 20. At an angle alpha ₁ to this flattening 26 is in the region of the free end Pin another flattening 25 is provided, which is dimensioned such that the vertical distance from the flattening to the diametrically opposite end or the diametrically opposite surface line has the value d ₂ . If the trough 11 is held at an angle to the housing corresponding to the angle alpha or alpha ₁ , then the pin with the flattened portion 25 can be inserted through the clear cross section 24 between the side wall 20 and the transverse pin 23.

An area 27 with a reduced cross-section, also called groove 27, adjoins the area with the flattening 25, the size of which from the diametrically opposite surface line also has the amount d ₂ . When the pin is pushed into the eyelet, the cross pin then reaches the region 27 of the narrowed cross section, the groove depth or the groove base 28 of this region with a narrowed cross section extending perpendicular to the flattened area 26. Since the distance d _{2 is} slightly smaller than d ₃ , in this position of the pin in relation to the transverse pin 23 or the tub 11 in relation to the housing 10, the tub can be closed, so that the free edge of the tub 11 against the free edge of the housing 10 comes to rest. The cross-sectional shape in the area of the cross-sectional constriction 27 permits this rotary movement by 90 °. In other words: the cross section of the pin in the area of the groove 27 has an envelope radius d ₂ , which is why the pin can be rotated into the eyelet in the area of the cross pin. The outer diameter of the enveloping circle, which surrounds the pin, is greater than the distance d ₃ , so that when the cross pin is in this area 27, the trough 11 can no longer be moved relative to the housing 13 when the trough is turned Is folded up 90 °, i.e. is open. The flat 25 covers the groove 27. Reference is now made to FIGS. 7 to 11.

FIG. 7 shows a luminaire in the opened position with a luminaire housing 70 and a luminaire trough 71. The luminaire housing 70 has a circumferential edge 72 which is integrally formed on a recess 73 running perpendicularly thereto; the circumferential edge 72 runs parallel to the side walls 74 in the direction of the open side of the lamp housing 17. On the inner surface of the edge 72 there are several approximately semicircular eyelets 75, of which only one can be seen in FIG. As can be seen from FIGS. 9 and 10, each eyelet has an L-shaped structure with a leg 76 running parallel to the edge 72 and a further leg 77 running perpendicular to it. A parallel to the leg 76 is a, reducing the clear cross section 78 Cross pin 79 is provided, which corresponds to the cross pin 23 of the embodiment according to Figures 1 to 6. 7 shows the hole 80 in the eyelet through which the cross pin is inserted.

The tub 71 has a U-shaped tub rim 81 projecting in the opening direction, in the interior of which a seal 82 is inserted which projects beyond the free edge of the tub rim. The U-shaped tub rim 81 is on an inner flange running parallel to the bottom surfaces 83 of the tub 71 in the region of the longitudinal edges

84 molded, which inner flange with the side wall

85 of the tub forms an acute angle that deviates slightly from 90 °. On the outer surface of the U-shaped edge, a plurality of supports 86 (only one of which can be seen) are provided, which run perpendicular to the course of the longitudinal edge of the tub 71 and parallel to the plane spanned by the U-shaped edge 81; On these supports 86, a pin 87 is formed perpendicularly thereto, that is to say in the direction of the longitudinal edge of the tub, which has a flattening 8δ on its side facing the tub edge and has a groove 89 on the side lying parallel to the tub rim plane. It can be seen from FIG. 9 that the trough 71 is to be placed on the luminaire housing in a position oriented at an angle to the luminaire housing which is less than 90 °, so that the pin 87 fits through the clear cross section 78. If the pin is pushed so far into the eyelet that the groove, which is only shown in broken lines in FIG. 9, is in the region of the transverse pin 79, then, as can be seen from FIG. 10, the tub can be completely in the folded-down position, which is indicated in Figure 7, are pivoted, in which the cross pin 79 engages in the groove 89.

Figure 12 shows another embodiment of the pin with the eyelet. On a lamp housing 90, eyelets 91 corresponding to the eyelets 75 are provided. A cross pin similar to cross pin 79 is missing from these eyelets. Again, only one eyelet 91 is shown in FIG.

A tub 92 is to be connected to the luminaire housing 90, which has essentially the same structure as the tub 71 according to FIG. 7. The tub 92 has, in the same way as the tub 71, a U-shaped tub rim 93 with a seal 94 attached to it an edge flange 95, which corresponds to the edge flange 84, is assigned in the same way as in FIG.

On the outer surface of the tub rim 93 there are carriers 96 corresponding to the carrier 86, on each of which a pin 97 is formed, which has a flattening 98 on its surface facing the tub edge 93. The free end of the pin 97 has a hook 99 which is directed toward the tub edge 93 and which, as can be seen from FIGS. 13 and 15, engages behind the adjacent free edge of the eyelet 91. In the assembly position shown in Figure 14 is set, you can see that the pin 97 with the hook 99 fits exactly through the clear cross-section 100 of the eyelet 91. The hook also has a bevel 101 so that the trough 92 can be mounted in a position folded down at an angle to the lamp housing 90.

All versions only show an eyelet with a pin. Of course, several eyelets and several pins are provided on a trough or on a luminaire housing for a linear luminaire, of which either one eyelet and one pin or all the eyelets and all the pins are designed as shown in FIGS. 1 to 16.

In all of these configurations, the tub is folded into such a position for the purpose of assembly that the plane spanned by the free edge of the tub assumes a certain angle to the plane spanned by the free edge of the lamp housing; assembly is carried out by inserting the pins into the eyelets and then moving the trough in the longitudinal direction of the pins until either the grooves are in the area of the cross pins or the hook engages behind the eyelet so that the I-Iaken is free from the eyelet. Because of the reduction in cross-section due to the cross pins and the grooves on the one hand and because of the hook on the other hand, the trough cannot be moved relative to the luminaire housing when folded down.

It must be added in the embodiment according to FIG. 7 that a stop 75a is provided in the area of the eyelet 75, against which the free end of the pin 87 comes to rest during assembly.

Claims

claims

1. Connecting device for the rotatable articulated connection of the tub of a lamp, preferably a linear lamp with at least one fluorescent lamp, with the lamp housing of the lamp, whereby the pan can be swiveled relative to the lamp housing for the purpose of opening, characterized in that on one of the longitudinal edges of the tub (11) at least one pin (19) running parallel to the longitudinal edge and on the adjacent longitudinal edge of the housing (13) a number of eyelets (14) corresponding to the number of pins (19) is provided, in the opening (15) of which the pins can be moved Trough can be inserted against the housing in the direction of its center line, that at least one eyelet (14) is eccentrically penetrated by a cross pin (23) which reduces the clear cross section (24), and that at least one of the pins (19) has a first flattening following a secant (88) and a groove (89) following another secant, the depth of which from the outer circumference g measure, the extent of the reduction in cross section through the cross pin (24), such that in the folded-down state of the trough (71) the cross pin engages in the groove, and that the cross section of the pin is dimensioned so that it is smaller at an angle as the 90 ° folded position of the trough (71) relative to the lamp housing (70) can be inserted into the eyelet through the reduced cross section of the eyelet until the groove reaches the area of the cross pin.

2. Connecting device according to claim 1, characterized in that the first flattening (88) is provided on the pin (87) on its side facing the center of the trough (71), that the groove (89) on the opening side of the trough (71 ) executed side of the pin (87) and the transverse pin (76) on the opposite side of the opening side of the housing of the inner surface of the eyelet (75) are arranged.

3. Connecting device according to claim 2, characterized in that the cross pin is formed by a metal pin.

4. Connecting device according to claim 2, characterized in that the cross pin is integrally formed on the inside of the eyelet (75).

5. Connecting device according to claim 1, characterized in that the pin (19) at its free end an area with a radial flattening, which is at such an angle to the plane formed by the free edge (11a) of the trough (11) on the pin is arranged that the pin when the pan is partially opened, i.e. if the plane formed by the free edge of the pan takes an angle corresponding to the angle of the flattening, with the plane formed by the edge of the housing, due to the narrow internal cross section in the The eyelet can be inserted, and that a flattened area corresponding to the clear cross-section of the eyelet is then attached to this flattening, the area (27) of reduced cross-section being arranged such that the cross pin in this area of reduced cross-section in the vertically folded-up position of the tub ( 11) engages and is locked against displacement, and the distance of the area (27) vo m free end of the pin (19) corresponds to the insertion length of the pins into the eyelets.

6. Connecting device for the rotatable articulated connection of the tub of a lamp, preferably a linear lamp with at least one fluorescent lamp, with the lamp housing of the lamp, whereby the tub can be swiveled relative to the lamp housing for opening, characterized in that at least one pin on the pan (92) (97), which runs parallel to the longitudinal edge of the trough (92), and at least one eyelet (91) are attached to the lamp housing (90), into which the pin (97) can be inserted in the direction of the longitudinal edge, that at the free, in In the direction of insertion at the front end of the pin (97) a hook (99) directed towards the central plane of the trough (92) is formed such that the length of the eyelet (91) in the direction of insertion is less than the length of the pin (97) up to the hook (99 ), so that the hook (99) engages behind the adjacent free edge after insertion into the eyelet, and that the clear cross section of the eyelet (91) is larger than the outer cross section d it pin (97) with the hook (99).

7. Connecting device according to claim 6, characterized in that the pin (97) is directed towards the center plane of the tub, the length of the pin (97) up to the hook (99) overlapping a secant. Has flattening (98), which corresponds to a flattening of the inside of the eyelet (91).