Lamp holder for attaching a lamp

Abstract

Lamp holder (1) for fastening a lamp (100), preferably a signal lamp, with a lamp base (101) to a fastening body (200) with an outer wall (201) and a mounting opening (202), the lamp holder (1) comprising at least: a first connecting element (2A) with a first connecting section (5A), preferably designed as an internal thread, a second connecting element (2B) with a second connecting section 5B, preferably designed as an internal thread), an elongated spacer element (3), preferably a hollow rod, for arrangement between the first (2A) and the second connecting element (2B), wherein the spacer element (3) is fixedly connected to the first connecting element (2A) and fixedly connected to the second connecting element (2B), and a fastening element (4) for fastening the first (2A) or the second connecting element (2B) to the outer wall (201) of the fastening body (200), the fastening element (4) having a fastening section (15), preferably designed as a fastening extension with an external thread, wherein the respective other connecting element is designed to hold the lamp (100), wherein the fastening element (4) in the assembled state is designed for at least partial arrangement in the fastening body (200), characterized in that the first connecting portion (5A) and the second connecting portion (5B) are each compatible with the fastening portion (15) of the fastening element (4) and with the lamp base (101) of the lamp (100).

Description

[0001] The invention relates to a lamp holder for fastening a lamp, preferably a signal lamp, with a lamp base to a fastening body with an outer wall and a mounting opening, the lamp holder at least comprising a first connecting element with a first connecting section, preferably designed as an internal thread, a second connecting element with a second connecting section, preferably designed as an internal thread, an elongated spacer element, preferably a hollow rod, for arrangement between the first and the second connecting element, wherein the spacer element is firmly connected to the first connecting element and firmly to the second connecting element, and a fastening element for fastening the first or the second connecting element to the outer wall of the fastening body, the fastening element comprising a fastening section, preferably designed as a fastening extension with an external thread,wherein the respective other connecting element is designed to hold the lamp, wherein the fastening element in the assembled state is designed to be arranged at least partially in the fastening body.,

[0002] Signal lights are familiar in the context of industrial manufacturing. They are typically mounted on production equipment and, using color codes, provide information about the status of the machine in question or indicate necessary actions, for example, by the machine operator. Signal lights are often not mounted directly on the machine, but rather at the end of a lamp holder, often a rod-shaped one, connected to the machine. The lamp holder offers flexibility in positioning the signal light, i.e., it contributes to the visibility of the light. The light's wiring is usually routed through the lamp holder into the machine, protecting the light's electrical components from the environment.

[0003] In particular, light fixtures are known in which a socket element is equipped with an internal thread for receiving a light. The socket element is mounted on a hollow rod, the length of which essentially determines the height of the light fixture and whose end sections each have an external thread. The hollow rod firmly connects the socket element to a base element, which has a fastening extension with an external thread that projects into the machine through a mounting hole in the outer wall of the machine. The fastening extension of the base element is screwed on the inside with a nut in order to fix the light fixture to the outer wall of the machine. The light fixture also has cover caps that protect the connection point between the threaded hollow rod and the base element or between the threaded hollow rod and the socket element from the environment.

[0004] The main disadvantages of this known design are the number and complexity of the parts. Furthermore, due to the prefabricated external threads at the ends of the threaded hollow rod, the height of the lamp holder cannot be adjusted during assembly by shortening the threaded hollow rod.

[0005] Lamp holders with a tube are also already known, the first end of which is held by a tube base and to whose opposite end section a socket element is attached. A sealing ring is inserted between the first end of the tube and the tube base and an elastic, cylindrical sealing element is clamped between the opposite end section of the tube and the socket element in order to seal the interior of the lamp holder. The elastic sealing element decouples the tube and the socket element from one another, so that relative movements are possible. The dimensional stability of the lamp holder is thereby impaired. The tube base has a flange which rests on the outer wall of the machine and to which it is attached to the machine with several eccentrically arranged screws. The disadvantage of this is that the mounting screws require further openings in the outer wall of the machine.

[0006] The object of the invention is therefore to mitigate or eliminate at least some of the disadvantages of the prior art. The invention preferably aims to create a lamp holder with improved manufacturing and assembly properties without compromising sealing properties.

[0007] This object is achieved by a luminaire holder according to claim 1, a method for mounting a facade according to claim 11, and a luminaire unit according to claim 15. Preferred embodiments are disclosed in the dependent claims.

[0008] According to the invention, the first connecting portion and the second connecting portion are each compatible with the fastening portion of the fastening element and with the luminaire base of the luminaire.

[0009] For the purposes of this disclosure, location and direction specifications such as "top," "bottom," "vertical," and "horizontal" refer to the intended mounting state of the lamp holder on the mounting body. In particular, the location specification "surroundings" refers to the space surrounding the lamp holder, which is delimited by the outer wall of the mounting body. In particular, the location specification "in the mounting body" refers to the space extending within the outer wall of the mounting body. The phrase "in the mounted state" refers in particular to the mounted state of the lamp holder, wherein the lamp holder is firmly connected to the outer wall of the machine and the lamp is firmly connected to the lamp holder.

[0010] Known light fixtures provide differently designed connecting elements for mounting at the ends of the spacer element. This means that the first connecting element differs from the second connecting element at least in that only one of the two is suitable for receiving the light fixture, and only the other for connecting to the fastening section of the fastening element. The lamp bases of commercially available lamps have an external thread, so the socket element requires an internal thread to hold the light fixture. The base element, on the other hand, is attached to the outer wall of the machine with a nut; the fastening extension, which projects into the mounting hole in the outer wall, must therefore be equipped with an external thread.

[0011] Furthermore, the cover cap of the socket element of the known lamp holder extends beyond the connection point between the threaded hollow rod and the socket element and also beyond the internal thread for receiving the lamp base of the lamp, so that when the lamp is mounted, it borders a higher point on the lamp and protects the threaded connection from the environment. An extension of the cover cap of the base element beyond the fastening extension is unthinkable because the fastening extension protrudes through the outer wall of the machine, and this limits the maximum extension of the cover cap. Consequently, even if the base element had an internal thread compatible with the lamp base of the lamp, it would not fulfill the sealing properties of the socket element.

[0012] Conversely, the socket element of known lamp holders is not suitable for fastening the lamp holder to the outer wall of the machine because it does not have a fastening extension that protrudes through the outer wall of the machine when mounted and onto which the nut arranged on the inside could be placed.

[0013] In contrast, the invention has the advantage that the first connecting element is suitable either for being connected to the fastening element or for holding the luminaire and the second connecting element is suitable either for being connected to the fastening element or for holding the luminaire. This makes assembly of the luminaire holder easier. It is advantageous if, in both arrangement variants, i.e. the first connecting element connects the luminaire holder to the luminaire and the second connecting element is flush with the outer wall of the fastening body, the sealing properties of the luminaire holder are retained, in particular with regard to the closure of the luminaire holder with the luminaire and with the outer wall of the fastening body. It is advantageous if the first and second connecting elements are identical in construction. It is advantageous if the complexity of the component set for a luminaire holder is reduced.

[0014] The longitudinal direction of the luminaire holder is defined by a straight line connecting the first and second connecting elements in the assembled state. When assembled, the longitudinal direction is oriented perpendicular to the outer wall of the fastening body. The longitudinal direction of the individual components of the luminaire holder is determined by their position in the assembled state. The transverse direction is perpendicular to the longitudinal direction.

[0015] Preferably, the spacer element and / or the first connecting element and / or the second connecting element and / or the fastening element has a round, preferably circular, cross-section. Preferably, the spacer element and / or the first connecting element and / or the second connecting element and / or the fastening element is rotationally symmetrical, preferably with respect to an axis extending in the longitudinal direction.

[0016] Preferably, the spacer element and / or the first connecting element and / or the second connecting element and / or the fastening element is made of plastic, preferably polycarbonate. Advantageous in this case are the good processing properties, the chemical bondability of the components and the resulting insulating properties of the lamp holder. Alternatively, the spacer element and / or the first connecting element and / or the second connecting element and / or the fastening element is metallic, preferably made of aluminum. The spacer element is preferably made of coated aluminum. With regard to the adhesive properties of the spacer element, it is advantageous if the ends of the spacer element are uncoated.

[0017] With regard to the protective effect of the light holder, it is advantageous if the first connecting element has a first sealing section for separating the first connecting section from the environment in the assembled state, and the second connecting element has a second sealing section for separating the second connecting section from the environment in the assembled state. It is advantageous if the light holder is designed to protect electrical lines of the light in the assembled state, i.e. to separate them from the environment. The second sealing section preferably corresponds to the first sealing section. The first sealing section is preferably designed to cover the mounting opening of the fastening body in the assembled state, i.e. the extent of the sealing sections is greater than the extent of the mounting opening. The cross section of the first sealing section is preferably circular.The first sealing section preferably surrounds, preferably encircles, the first connecting section and the second sealing section the second connecting section. It is advantageous if the first connecting section is separated from the environment in the assembled state, even without a sealing element adjoining the first connecting section. It is advantageous if the second connecting section is separated from the environment in the assembled state, even without a sealing element adjoining the second connecting section. It is advantageous if, in the assembled state, a protective area is formed between the first connecting section and the first sealing section, i.e. a region of the first connecting element that is separated from the environment. It is advantageous if, in the assembled state, a protective area is formed between the second connecting section and the second sealing section, i.e.a region of the second connecting element that is separated from the environment. The diameter of the first connecting element is preferably 30-70 mm, preferably 40-60 mm, for example substantially 50 mm. The diameter of the second connecting element preferably corresponds to the diameter of the first connecting element.

[0018] Preferably, the first connecting section is set back in the longitudinal direction relative to the first sealing section, i.e., in the assembled state, the first sealing section is arranged closer to the outer wall of the fastening body than the first connecting section. Preferably, the second connecting section is set back in the longitudinal direction relative to the second sealing section. Preferably, the setback of the first connecting section relative to the first sealing section in the longitudinal direction is 0.5-2 mm, for example, substantially 1 mm. Preferably, the setback of the second connecting section relative to the second sealing section corresponds to that of the first connecting section.

[0019] With regard to the protective effect of the light holder, it is advantageous if the light holder has at least a first sealing element, preferably a sealing ring, for arrangement on the first sealing section, and a second sealing element, preferably a sealing ring, for arrangement on the second sealing section. The first sealing element preferably corresponds to the second sealing element. The first sealing section preferably has a recess for receiving the first sealing element. The depth of the recess of the first sealing section in the longitudinal direction preferably corresponds substantially to the setback of the first connecting section. The light holder preferably has at least a third sealing element for arrangement between the spacer element and the first or second connecting element.

[0020] With regard to the protective effect of the luminaire holder, it is advantageous if the first sealing section is designed to border the outer wall of the fastening body in the assembled state and the second sealing section is designed to border the luminaire in the assembled state, or vice versa. It is advantageous if the first connecting section and the second connecting section are separated from the environment in the assembled state. Preferably, the protective area of ​​the first connecting element is sealed from the environment in the assembled state by the first sealing element. Preferably, the protective area of ​​the second connecting element is sealed from the environment in the assembled state by the second sealing element.

[0021] With regard to the protective effect of the luminaire holder, it is advantageous if the luminaire holder has a cable protection duct for protecting electrical cables from the environment of the luminaire holder, wherein the cable protection duct is formed by serially adjacent cable protection duct sections, each designed as a recess, preferably in the interior of the first connecting element, the second connecting element, the fastening element and the spacer element. It is advantageous if the luminaire holder, in the assembled state, prevents the penetration of material commonly encountered in production, in particular dust, chips and liquids, from the environment into the fastening body. Preferably, the cable protection duct is designed to be accessible only through the assembly opening of the fastening body when the luminaire holder and the luminaire are assembled.Preferably, the mounting opening in the outer wall of the fastening body does not form a cable protection duct section. Preferably, the cable protection duct, preferably the cable protection duct sections, are cylindrical. Preferably, the cable protection duct section of the first connecting element extends through a recess in the first connecting section. Preferably, the cable protection duct section of the second connecting element extends through a recess in the second connecting section.

[0022] With regard to the protective effect of the lamp holder, it is advantageous if the fastening section of the fastening element is designed to protrude at least partially through the mounting opening from the fastening body in the mounted state. It is advantageous if the connecting element connected to the fastening element in the mounted state is not designed to protrude into or through the mounting opening into the fastening body in the mounted state.

[0023] With regard to the stability of the light holder, it is advantageous if the fastening element has a securing section which, in the assembled state, is designed for arrangement in the fastening body, wherein the transverse extent of the securing section is larger than the mounting opening of the fastening body. Preferably, the securing section secures the fastening element in the assembled state against displacement in the direction of the spacer element. It is advantageous if the fastening element is designed, in the assembled state, to exert tensile force in the longitudinal direction in the direction of the fastening body on the first connecting element, preferably the first connecting section, via the fastening section.

[0024] It is particularly advantageous if the first sealing section is pressed against the outer wall so that the first protective area is sealed.

[0025] With regard to the dimensional stability of the lamp holder, it is advantageous if one end section of the spacer element is designed to be received in a receiving recess of the first connecting element or the second connecting element, and an opposite end section of the spacer element is designed to be received in a receiving recess of the other connecting element, wherein the receiving recess is preferably designed as an intermediate space between two profiles of different extents. It is advantageous if the spacer element is positively connected to the first and second connecting elements, such that the spacer element is secured at least against movements normal to the longitudinal extent of the spacer element. The recess of the second connecting element is preferably designed to correspond to the recess of the first connecting element.Preferably, an inner and an outer profile are formed in the longitudinal direction from a base of the receiving recess of the first connecting element. Particularly preferably, in the assembled state, an outer wall of the inner profile rests against an inner wall of the spacer element. Particularly preferably, an inner wall of the outer profile rests against an outer wall of the spacer element. Particularly preferably, the base of the receiving recess borders on a bottom of the spacer element. Particularly preferably, the inner and outer profiles are cylindrical. Preferably, the base of the receiving recess of the first connecting element borders on the first connecting region, preferably on the end of the first connecting region that is closest to the spacer element in the assembled state.Preferably, the outer profile of the receiving recess of the first connecting element is connected to the first sealing section, preferably at the end of the first sealing section that is closest to the first connecting element in the assembled state. Particularly preferably, the inner profile of the receiving recess of the first connecting element extends over 5-40 mm, preferably 8-12 mm, for example, substantially 10 mm in the longitudinal direction. Particularly preferably, the outer profile of the receiving recess of the first connecting element extends over 5-40 mm, preferably 20-30 mm, for example, substantially 23.5 mm in the longitudinal direction.

[0026] With regard to the dimensional stability and the protective effect of the lamp holder, it is advantageous if the spacer element is integrally connected, preferably glued, to the first connecting element and the second connecting element. Alternatively, the spacer element is welded to the first connecting element and the second connecting element. It is advantageous if the receiving recess of the spacer element of the first connecting element and the receiving recess of the second connecting element are each connected to the spacer element by an adhesive, preferably an adhesive. The adhesive is particularly preferably designed as an adhesive and sealant, so that a channel connection section between the cable protection channel section of the spacer element and a channel connection section between the cable protection channel section of the spacer element and the cable protection channel section of the second connecting element are separated from the environment.

[0027] In a preferred embodiment, the first connecting section and the second connecting section are each formed by an internal thread of dimension M22. Preferably, the fastening section of the fastening element has an external thread of dimension M22. Preferably, the transverse extent of the first connecting section and the transverse extent of the second connecting section substantially correspond to the transverse extent of the spacer element. Preferably, the transverse extent of the spacer element is 10-35 mm, preferably 15-30 mm, for example substantially 25 mm. Preferably, the wall thickness of the spacer element is 0.5-3 mm, preferably 1-2 mm, for example substantially 1.5 mm.

[0028] In the corresponding method for mounting a luminaire holder in one of the above-described embodiments on a fastening body, the object is achieved by arranging the first connecting element on the outer wall of the fastening body, wherein the fastening section of the fastening element is guided out of the fastening body through the mounting opening of the fastening body and connected, preferably screwed, to the first connecting section of the base element. Preferably, the second connecting section is connected, preferably screwed, to the luminaire base of the luminaire.

[0029] With regard to the method for mounting a lamp holder on a fastening body, it is advantageous if the fastening section of the fastening element is connected, preferably screwed, to the first connecting section in such a way that the first connecting element, preferably a first sealing section, is pressed against an outer side of the outer wall of the fastening body and the fastening element, preferably a securing section of the fastening element, is pressed against an inner wall of the outer wall of the fastening body.

[0030] With regard to the method for mounting a lamp holder on a fastening body, it is advantageous if the spacer element is connected, preferably glued, to the first connecting element and the second connecting element. Adhesive is preferably applied to the first connecting element, preferably in a receiving recess of the first connecting element, and to the second connecting element, preferably in a receiving recess of the second connecting element, and / or adhesive is applied to the spacer element, preferably to end sections of the spacer element. Particularly preferably, one end section of the spacer element is inserted into the receiving recess of the first connecting element, and an opposite end section is inserted into the receiving recess of the second connecting element. The spacer element is preferably cut to size, i.e.its longitudinal extent is adjusted before it is connected to the first and second connecting elements.

[0031] With regard to the method for mounting a luminaire holder on a fastening body, it is advantageous if electrical cables of the luminaire are threaded through a cable protection channel of the luminaire holder into the fastening body.

[0032] In the corresponding lighting unit, the object is achieved in that the lighting unit has at least one light with a light base and a light holder in one of the embodiments described above. The light base is preferably designed as an external thread, particularly preferably as an M22 external thread. The light, preferably the light base, preferably has electrical lines, preferably electrical cables for supplying the light with electricity. The electrical lines are preferably designed for arrangement in the assembled state at least in the cable protection duct section of the first or second connecting piece of the light holder. The light is preferably cylindrical.Preferably, the transverse dimension, preferably the diameter, of the luminaire corresponds at least to the transverse dimension of the first and second sealing sections, so that the first or second sealing section adjoins the luminaire in the assembled state. Particularly preferably, the first or second sealing section is pressed against the luminaire when the luminaire base is connected, preferably screwed, to the first or second connecting element.

[0033] The invention will be further explained below using a preferred embodiment, to which it is not intended to be limited, and with reference to the drawings. The drawings show in detail: Fig. 1A a perspective view of the lamp holder; Fig. 1B a perspective view of the luminaire holder in the assembled state with luminaire and outer wall of a fastening body; Fig. 2A, Fig. 2B a sectional view of the lamp holder from Fig. 1A along the vertical section A - A and a front view of the lamp holder according to Fig. 1A; Fig. 2C a sectional view of the lamp holder from Fig. 1B in the assembled state with luminaire and outer wall of a fastening body along the vertical section A - A; Fig. 3A, Fig. 3B each shows a detailed view B from the sectional view of the lamp holder from Fig. 2B to the first connecting portion or the first sealing portion and to the second connecting portion or the fastening portion;

[0034] Fig. 1A shows a lamp holder 1 for fastening a lamp 100 to a fastening body 200 comprising a first connecting element 2A, a second connecting element 2B, a spacer element 3 and a fastening element 4.

[0035] Fig. 1B shows the luminaire holder 1 in the assembled state, ie that the luminaire holder 1 is mounted on the outer wall 201 of a fastening body 200 and the luminaire 100 is mounted on the luminaire holder 1.

[0036] Fig. 2A-B show the lamp holder 1, Fig. 2C shows the lamp holder 1 in the assembled state: The first connecting element 2A of the lamp holder 1 with a first connecting section 5A designed as an internal thread is fastened to a lamp base 101 of the lamp 100. The second connecting element 2B with a second connecting portion 5B formed as an internal thread is fastened to the outer wall 201 of the fastening body 200.

[0037] The fastening element 4 fastens the second connecting element 2B to the outer wall 201 of the fastening body 200. The fastening element 4 has a fastening section 15 designed as a fastening extension with an external thread. In the assembled state, the fastening element 4 is arranged at least partially in the fastening body 200. A section of the fastening element 4 protrudes from the mounting opening 202 of the fastening body 200. In the assembled state, the fastening section 15 is screwed to the second connecting section 5B. The fastening element has a securing section 22. In the assembled state, this is arranged in the fastening body 200. The securing section 22 is circular and has a transverse extent that is larger than the mounting opening 202 of the fastening body 200. The securing section 22 extends perpendicular to the fastening section 15 of the fastening element 4.In the assembled state, the securing section 22 rests against an inner side of the outer wall 201.

[0038] The elongated spacer element 3, which is designed as a hollow rod, is arranged between the first connecting element 2A and the second connecting element 2B. It is firmly connected to the first connecting element 2A and to the second connecting element 2B.

[0039] The first connecting section 5A and also the second connecting section 5B are compatible with the fastening section 15 of the fastening element 4 and with the lamp base 101 of the lamp 100. This means that the first connecting section 5A and the second connecting section 5B can be connected equally to the lamp base 101 of the lamp 100, and the first connecting section 5A and the second connecting section 5B can be connected equally to the fastening section 15 of the fastening element 4. The first connecting section 5A and the second connecting section 5B are essentially identical in construction. The first connecting element 2A and the second connecting element 2B are essentially identical in construction. The first connecting element 2A and the second connecting element 2B are rotationally symmetrical.

[0040] In this embodiment, the first connecting element 2A differs from the second connecting element 2B only in its arrangement, i.e., it is arranged adjacent to the luminaire 100. After disassembling the fastening element 4 and the luminaire 100, the luminaire holder 1 could be rotated 180° about an axis perpendicular to the rotation axis of the spacer element and reassembled—this time such that the second connecting element 2B is connected to the luminaire 100 and the first connecting element 2A is adjacent to the outer wall 201 of the fastening body 200 and connected to the fastening element 4.

[0041] Fig. Figure 3A shows in detail a first sealing section 6A of the first connecting element 2A for separating the first connecting section 5A from the environment and Fig. 3B, a second sealing section 6B of the second connecting element 2B for separating the second connecting section 5B from the environment. In the assembled state, the first sealing section 6A borders the outer wall 201 of the fastening body 200 and the second sealing section 6B borders the luminaire 100, in particular a luminaire base 101 (see Fig. 2C) or vice versa.

[0042] The following descriptions concerning the specific embodiment of the first connecting element 2A can therefore be transferred analogously to the second connecting element 2B: The sealing section 6A surrounds the first connecting section 5A radially, so that in the assembled state a protective area 24A is formed between the first connecting section 5A and the first sealing section 6A.

[0043] The sealing section 6A protrudes further in the longitudinal direction 1000 from the first connecting element 2A than the first connecting section 5A.

[0044] The first sealing section 6A has a shoulder 23A which, in the assembled state, directly adjoins the outer wall 201 or the luminaire 100, i.e., without any sealing element in between. This arrangement serves to improve the dimensional stability of the luminaire holder 1.

[0045] The lamp holder 1 has a first sealing element 7A, which is designed as a sealing ring, for arrangement on the first sealing section 6A, and a second sealing element 7B, which is designed as a sealing ring, for arrangement on the second sealing section 6B. Radially offset from the shoulder 23A of the first sealing section 6A and adjacent to the shoulder 23A, the sealing region 6A has a recess. The recess and the first connecting section 5A have essentially the same longitudinal extent. The recess accommodates the first sealing element 7A. The first sealing element 7A is arranged such that it ends essentially flush with the shoulder 23A of the first connecting element 2A in the longitudinal direction 1000. The first sealing element 7A extends radially inward and borders the first connecting section 5A.In the assembled state, the first sealing element 7A adjoins the outer wall 201 of the fastening body 200 or the luminaire 100, so that the first protection area 24A remains separated from the environment.

[0046] Fig. 2B also shows cable protection channel sections 13A, 13B, 14 formed as a recess in the interior of the first connecting element 2A, the second connecting element 2B, the fastening element 4 and the spacer element 3. The cable protection channel sections 13A, 13B, 14 form a cable protection channel 12 for protecting electrical lines 102 (see Fig. 2C) of the luminaire 100 from the environment.

[0047] In Fig.2B also shows that one end portion of the spacer element 3 is received in a receiving recess 8A of the first connecting element 2A. The opposite end portion of the spacer element 3 is received in a receiving recess 8B of the second connecting element 2B. The receiving recess 8A is formed as a space between two profiles 9A, 10A of different dimensions. The inner diameter of the spacer element 3 essentially corresponds to the diameter of the inner profile 9A, and the outer diameter of the spacer element 3 essentially corresponds to the diameter of the outer profile 10A. The outer profile 10A extends 100° further in the longitudinal direction than the inner profile 9A. The end portion of the spacer element 3 and the receiving recess 8A can form a plug-in connection. The end portion of the spacer element 3 and the receiving recess 8A are glued together. List of reference numbers: 1 light holder 2A First connecting element 2B Second connecting element 3 spacer element 4 Fastening element 5A First connecting section 5B Second connecting section 6A First sealing section 6B Second sealing section 7A First sealing element 7B Second sealing element 8A Recess for the first connecting element 8B Recess for the second connecting element 9A Inner profile of the receiving recess of the first connecting element 10A Outer profile of the receiving recess of the first connecting element 11A Bottom of the mounting recess 12 cable protection duct 13A Cable protection duct section of the first connecting element 13B Cable protection duct section of the second connecting element 14 Cable protection duct section of the spacer element 15 Fastening section 22 Collateral section 23A Shoulder of the first sealing section 24A Protection area between the first connecting section and the first sealing section 24B Protection area between the second connecting section and the second sealing section 100 lights 101 lamp bases 200 fastening bodies 201 exterior wall 202 mounting opening 1000 longitudinal direction

Claims

[1] Lamp holder (1) for fastening a lamp (100), preferably a signal lamp, with a lamp base (101) to a fastening body (200) with an outer wall (201) and a mounting opening (202), the lamp holder (1) comprising at least: a first connecting element (2A) with a first connecting section (5A), preferably designed as an internal thread, a second connecting element (2B) with a second connecting section 5B, preferably designed as an internal thread), an elongated spacer element (3), preferably a hollow rod, for arrangement between the first (2A) and the second connecting element (2B), wherein the spacer element (3) is fixedly connected to the first connecting element (2A) and fixedly connected to the second connecting element (2B), and a fastening element (4) for fastening the first (2A) or the second connecting element (2B) to the outer wall (201) of the fastening body (200), the fastening element (4) having a fastening section (15), preferably designed as a fastening extension with an external thread, wherein the respective other connecting element is designed to hold the lamp (100), wherein the fastening element (4) in the assembled state is designed for at least partial arrangement in the fastening body (200), characterized by , that the first connecting portion (5A) and the second connecting portion (5B) are each compatible with the fastening portion (15) of the fastening element (4) and with the lamp base (101) of the lamp (100). [2] Lamp holder (1) according to claim 1, characterized bythat the first connecting element (2A) has a first sealing section (6A) for separating the first connecting section (5A) from the environment in the assembled state, and the second connecting element (2B) has a second sealing section (6B) for separating the second connecting section (5B) from the environment in the assembled state. [3] Lamp holder (1) according to claim 2, characterized by that the lamp holder (1) is at least a first sealing element (7A), preferably a sealing ring, for arrangement on the first sealing section (6A), and a second sealing element (7B), preferably a sealing ring, for arrangement on the second sealing section (6B). [4] Lamp holder (1) according to one of claims 2 to 3, characterized bythat the first sealing section (6A) is designed to adjoin the outer wall (201) of the fastening body (200) in the mounted state and the second sealing section (6B) is designed to adjoin the luminaire (100) in the mounted state, or vice versa. [5] Lamp holder (1) according to one of claims 1 to 4, characterized by that the lamp holder (1) has a cable protection duct (12) for protecting electrical cables from the environment of the lamp holder (1), wherein the cable protection duct (12) is formed by serially adjacent cable protection duct sections (13A, 13B, 14), each designed as a recess, preferably in the interior, of the first connecting element (2A), the second connecting element (2B), the fastening element (4) and the spacer element (3). [6] Lamp holder (1) according to one of claims 1 to 5, characterized bythat the fastening section (15) of the fastening element (4) is designed to protrude at least partially from the fastening body (200) through the mounting opening (202) in the mounted state. [7] Lamp holder (1) according to one of claims 1 to 6, characterized by in that a securing section (22) is designed in the mounted state for arrangement in the fastening body (200), wherein the transverse extent of the securing section (22) is larger than the mounting opening (202) of the fastening body (200). [8] Lamp holder (1) according to one of claims 1 to 7, characterized by that an end portion of the spacer element (3) is designed to be received in a receiving recess of the first connecting element (2A) or the second connecting element (2B), and an opposite end portion of the spacer element (4) is designed to be received in a receiving recess of the respective other connecting element, wherein the receiving recess is preferably formed as an intermediate space between two profiles of different extent. [9] Lamp holder (1) according to one of claims 1 to 8, characterized by that the spacer element (3) is materially connected, preferably glued, to the first connecting element (2B) and the second connecting element (2B). [10] Lamp holder (1) according to one of claims 1 to 9, characterized by that the first connecting section (5A) and the second connecting section (5B) are each formed by an internal thread of dimension M22. [11] Lighting unit, characterized by that the lighting unit has at least: a lamp (100) with lamp base (101), and a lamp holder (1) according to one of claims 1 to 10.

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