EP2947726A1 - Uv illumination device - Google Patents

Abstract

The invention relates to a UV illumination device, in particular a UV lamp assembly for solidifying lichtaushärtendem gel in the course of a fingernail treatment. For this purpose, at least one UV lamp (2) with lamp body (3) and lamp base (4a, 4b) is provided. In addition, a lamp holder (2) for receiving the lamp cap (4a, 4b). The lamp base (4a, 4b) is formed at least in two parts with a base (4a) bearing a contact (5) and a base base extension (4b) which is tapered in cross-section. At least the basic base extension (4b) has at least one recess (8) running in the insertion direction E, in which a corresponding projection (9) engages in a basic socket extension receptacle (10) of the basic socket (4a). According to the invention, the recess (8) and the projection (9) each have a circular segment and / or arc segment-shaped cross section.

Description

The invention relates to a UV illumination device, in particular a UV lamp assembly for solidifying lichtaushärtendem gel in the course of a fingernail treatment, with at least one UV lamp with lamp body and lamp base, and with a lamp holder for receiving the lamp cap, the lamp cap at least two parts Further, the base socket engages in a basic socket and the base socket extension in a basic socket extension of the lamp socket, and wherein at least the basic socket extension has at least one recess extending in the insertion direction, in which a corresponding projection in the Basic socket extension engages, or vice versa.

The insertion direction in this context refers to the direction in which the lamp cap is inserted into the lamp socket. In this insertion direction, the recess extends on the base socket extension, which interacts with the corresponding projection in the basic socket extension receptacle. It can also be reversed. In this case, the basic socket extension is equipped with a projection which cooperates with a corresponding recess in the basic socket extension receptacle. It is basically a matter of providing a positionally accurate combination of, on the one hand, the UV lamp with its lamp cap and, on the other hand, the lamp socket for receiving the lamp cap. For example, the generic state of the art goes after the US 5,634,820 in front.

In a likewise generic teaching according to the DE 20 2013 103 039 U1 the goal is to match the UV lamp on the one hand and the associated lamp socket on the other hand, so that the associated light source can be used only in defined devices.

Comparable approaches are also in the belonging to the same patent family DE 197 06 905 A1 or the US Pat. No. 6,033,249 tracked. At this point, it is about a base / socket system for incandescent and gas discharge lamps. The base is equipped with locking profiles, which correspond with the insertion into the lamp socket with resilient locking profiles.

In the DE 20 2008 001 362 U1 For example, a UV illumination device will be described in which the base socket has an oval or elliptical to circular cross-section. This cross-section deviates from that cross-section of the base socket extension receiving and predominantly angular base socket extension. At the same time, alternating extension bends of the basic socket extension, which alternately bear against the receiving edges of the basic socket extension receptacle, ensure a secure hold. The basic base extension is equipped with two laterally molded locking lugs, which interact with corresponding and arranged in the lamp holder locking springs.

In the EP 1 798 746 B1 It is about a UV lighting device in which a universal use of the UV lamp is to be ensured. For this purpose, the basic socket receptacle is equipped with an insertion depth which is smaller than the insertion depth of the basic socket extension receptacle. In addition, the basic socket in the insertion direction has a width which corresponds to the width of the basic socket extension or exceeds.

Finally, the state of the art still includes a tunnel device for curing nail gel and a UV lamp, as in the context of EP 1 690 465 B1 to be discribed. In total, an optimal curing of the nail gel or nail polish is to be made possible. For this purpose, a lamp-side base portion is equipped in cross-section with a lamp-side coding. The lamp socket has a socket-side coding whose cross-sectional shape corresponds to the lamp-side coding. As a result, only the use of provided with a suitable lamp-side encoding UV lamps is allowed.

The prior art has proven predominantly, but so far provides no convincing solutions such that when inserting the lamp cap of the UV lamp in the associated lamp socket any tilting, mismating etc. are reliably avoided. Because the interplay between recess and projection is based in the generic state of the art, for example, after US 5,634,820 or according to the DE 20 2013 103 039 U1 that straight corners and surfaces slide along each other. Since both the lamp base and the lamp socket are typically made of plastic, problems may arise in the connection in this context. In addition, consumers increasingly expect universally suitable lamp holders, ie those that are not only suitable for operation and for equipping with a special UV lamp. Here, the invention aims to provide a total remedy.

The invention is based on the technical problem of further developing such a UV illumination device such that a universal use of different UV lamps in conjunction with one and the same lamp socket is ensured and any problems in the union between the UV lamp and the associated lamp socket are not observed.

To solve this technical problem, a generic UV illumination device in the invention is characterized in that the recess and the projection each have a circular and / or arcuate or a kreissegment- and / or arc segment-shaped cross-section. The arcuate cross-section may be a conic segment-like cross-section.

As a result, both the recesses and the projection have an example circular segment cross-section. Alternatively, but also conic segments or generally arc segments can act as conceivable cross sections. Conic sections are known to be parabolas, hyperbolas or ellipses. That is, the recess or the projection may be designed in cross section as an ellipse segment, parabolic segment or hyperbola segment. In any case, according to the invention, cross-sectional shapes for the recess and the projection are observed and deliberately adjusted, which have a rounded outer contour without corners or edges and without straight surfaces. As a result, the UV lamp and the associated lamp base can be particularly easily combined with one another, because ultimately only curved surfaces on the one hand of the recess and on the other hand the projection slide along each other.

Since both the recess and the projection are generally designed to run continuously in the insertion direction, any tilting in the union of the UV lamp with the lamp base according to the invention are not to be feared. Rather, the respective arcuate edge surfaces slide on the one hand the recording and on the other the projection easily along each other. In this case, deliberately any tolerances, manufacturing inaccuracies, damage, etc. can be compensated, without the fundamental functional reliability and the exact match of the one hand, the UV lamp and the other hand, the lamp base questioned. This is especially important for the planned universal use.

In addition, for example, the recess in the basic base extension of the lamp base can be inserted in principle due to your circular and / or generally arcuate cross-section in lamp holders, which have a projection with a generally rectangular or not round cross-section. This is at least as long as possible, as the projection in the lamp cap, for example, with at least two points in the interior of the recess of the lamp cap rests and thereby experiences the lamp socket in the inserted position a positionally accurate fixation.

The same applies in the event that the lamp base according to the invention with the circular or generally arcuate segment-shaped projection to receive a UV lamp with a lamp base, which is equipped with a rectangular cross-section recess. Also in this case, a positionally accurate combination is possible, for example, by the arcuate projection in the cross-section tangentially abuts an edge of the rectangular cross-section recess of the non-structural lamp socket. In both cases, the arcuate design or the circular and / or arc segment-shaped cross section of the recess in the lamp base and the projection in the lamp holder ensure a combination with non-structural elements within certain limits. As a result, the universal character of the UV illumination device according to the invention is defined and made possible.

According to an advantageous embodiment, two opposing recesses and two opposing corresponding projections are realized as a rule. As a result, a particularly positional and accurate association of on the one hand the UV lamp and on the other hand, the associated lamp socket is made possible. In this context, the recesses are provided, for example, on each broad side of the basic socket extension. Mostly, the basic socket extension is designed as mostly cuboid. The broadsides act to accommodate and pronounce the mentioned recesses. In contrast, latching lugs are usually provided on the narrow sides of the respective square block or basic base extension, which interact with corresponding detent springs in the lamp socket in the inserted state. The interplay of the locking lugs and detent springs ensures a captive hold of the UV lamp in the associated lamp socket. To remove the UV lamp, the locking effect must be overcome.

The two recesses are generally arranged together on a mirror symmetry axis of the basic socket extension or mirror-symmetrically with respect to a mirror symmetry plane of the basic socket extension. The lateral latching lugs on the basic socket extension are also arranged on a mirror symmetry axis of the basic socket extension. In this case, a mirror-symmetric design is again observed in comparison to a further second mirror-symmetry plane of the basic socket extension. As a rule, the two mirror symmetry axes and also the mirror symmetry plane intersect vertically.

In addition, the interpretation is usually made so that the two recesses in the basic socket extension respectively the contacts on the basic socket assigned. As a rule, the procedure is such that the respective recess in cross-section describes a circular arc around the associated contact or contact pin. In other words, the contact or contact pin is located in the center of a circular arc describing the associated recess on the basic socket extension.

For reasons of a simple and cost-effective production, the detent springs in the lamp socket will generally be designed in one piece with the lamp socket made of plastic. Finally, it has proven useful if, in the insertion direction of the UV lamp into the lamp socket, the base socket of the lamp socket has a width which corresponds to or exceeds the width of the basic socket extension. In this way, the basic socket inside can accommodate an auxiliary unit such as a starter for the UV lamp. Corresponding to this, the base socket of the lamp cap is generally equipped with an insertion depth which is smaller than the insertion depth of the basic socket extension receptacle. The interpretation may be similar or comparable, as in the introductory already described EP 1 798 746 B1 is explained in detail. However, this is only an example and not a mandatory condition.

As a result, a UV illumination device is provided which, due to its universal character, allows the use of the UV lamp in non-modal lamp holders as well as the insertion of non-structural UV lamps into the lamp holder according to the invention. Both are within certain limits in the core possible in that both the recess and the projection each have a circular segment-like or generally arc-segment-shaped cross-section. In addition, this interpretation at the same time a positionally accurate and tilt-free Plugging the UV lamp into the lamp socket allows. As a result, damage, for example, the contacts or pins are not to be feared. In addition, the replacement of any defective UV lamps succeeds easily and easily. Here are the main benefits.

Fig.1

die erfindungsgemäße UV-Beleuchtungsvorrichtung in einer Seitenansicht,

Fig. 2 + 3

Detailansichten der UV-Lampe (Fig. 2) sowie des Lampensockels (Fig. 3) sowie

Fig. 4

den Lampensockel in einer perspektivischen Ansicht.

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; show it:

Fig.1

the UV illumination device according to the invention in a side view,

Fig. 2 + 3

Detail views of the UV lamp ( Fig. 2 ) and the lamp base ( Fig. 3 ) such as

Fig. 4

the lamp base in a perspective view.

In the figures, a UV illumination device is shown, which is composed in its basic structure of a UV lamp 1 and an associated lamp socket 2. The UV illumination device or the illustrated UV lamp arrangement is used for solidifying light-curing gel or generally for solidifying UV curing plastic in the course of a fingernail treatment. Of course, this is only a preferred and non-limiting use.

It can be seen that the at least one UV lamp 1 is equipped with a lamp body 3 and a two-part lamp base 4a, 4b. In fact, the lamp base 4a, 4b is made up of a base base 4a carrying contacts 5 and a basic base extension 4b which is tapered in cross-section together. The base 4 a and the base socket 4 b are generally made in one piece from a plastic body. In principle, however, the basic base 4a and the basic base extension can also be designed separately from one another and, for example, combined with one another.

In the context of the exemplary embodiment and also not restrictive, the basic base 4 is equipped with two pin-type contacts 5 or contact pins 5. The two contacts 5 extend in comparison to the central base socket extension 4b and rectified to this in the insertion direction E. Both the two contacts or contact pins 5 and the basic socket extension 4b are rectified on the basic socket 4a, again in the insertion direction E. In the context of the exemplary embodiment, the base base 4a has a rectangular cross-section with semicircular ends, on which the respective contacts 5 are located. The basic base 4a is therefore a cuboid with rounded narrow sides. Also, the basic base extension 4b is cuboid shaped, in which case the two narrow sides are rounded.

The two cuboids on the one hand the base base 4a and on the other hand the basic base extension 4b are perpendicular to each other with their respective longitudinal axes. In this case, the basic base extension 4b is designed as a whole as a cuboid. In addition, it can be seen laterally to the basic base extension 4b molded locking lugs 6. In fact, the two locking lugs 6 are mirror-symmetrical with respect to an associated symmetry axis or plane of symmetry S ₁ , as the Fig. 2 makes it clear. The base socket extension 4b has a further axis of symmetry or symmetry plane S _2, which is in the Fig. 3 recognizes. Both axes of symmetry or symmetry planes S ₁ , S ₂ , of the basic base extension 4b are perpendicular to each other.

Based on the representation in the Fig. 3 and 4 it can be seen that in addition to the locking lugs 6 recesses 8 are provided in the basic socket extension 4b. The recesses 8 in the basic socket extension 4b interact with corresponding projections 9 in the lamp holder 2. The recesses 8 and the projections 9 each extend continuously in the insertion direction E. In fact, the respective recess 8 extends in the basic socket extension 4b over its entire length. The associated projection 9 in the lamp socket 2 extends over the entire length of a basic socket extension receptacle 10. In the basic socket extension receptacle 10, when the UV lamp 1 is combined with the lamp socket 2, the basic socket extension 4b is inserted and held therein. On the other hand, a basic socket 11 serves to receive the base 4 a of the lamp cap 4 a, 4 b. Consequently, insertion openings 12 for the two contacts or contact pins 5 are also found in the basic socket receptacle 4.

Detent springs 7 can be seen laterally in the base socket extension receptacle 10, which interact with the latching lugs 6 on the basic socket extension 4b as soon as the UV lamp 1 is inserted into the lamp socket 2, as shown in FIGS FIG. 2 suggests. The recess 8 and the corresponding projection 9 have in the embodiment of a circular segment or circular arc segment-shaped cross-section, as a comparative consideration of Fig. 3 and 4 immediately makes it clear. In this way, a cantilever-free combination of on the one hand the UV lamp 1 on the other hand with the associated lamp base 2. Also, each design foreign elements can - as previously described - be taken into account. However, then the recess 8 and the projection 9 are not over the entire surface to each other, but only selectively or linearly.

It can be seen that the two recesses 8 and also associated projections 9 each lie opposite one another. The recesses 8 and the corresponding projections 9 are each mirror-symmetrical to the mirror symmetry axis or mirror plane S ₁ on the lamp base 4a, 4b respectively of the lamp socket 2 realized. In fact, both the lamp base 4a, 4b and the lamp socket 2 are each designed symmetrically in comparison to the two planes of symmetry S _1, S ₂ . Of course, this is only an example and not restrictive.

The recesses 8 on the basic socket extension 4b are provided on the respective broad sides of the base socket extension 4b designed as a plug-in cuboid. Consequently, the two associated projections 9 are likewise found on broad sides of the corresponding basic cuboid-shaped basic socket recess 10.

In addition, it can be seen that the two recesses 8 on the basic socket extension 4b are each assigned to the contacts 5 on the basic socket 4a. In fact, the associated recess 8 in cross section describes a circular arc around the associated contact or contact pin 5. In other words, the contact or contact pin 5 is in the center of a circular arc which describes the recess 8 in the basic socket extension 4b.

The lateral detent springs 7 are made in one piece with the lamp holder 2 made of plastic. Once the UV lamp 1 is fully inserted into the lamp holder 2 in the insertion direction E, the two lateral locking lugs 6 on the base socket extension 4b of the corresponding detent springs 7 in the lamp holder 2 in the then reached and in the Fig. 2 behind the installed position.

Finally one recognizes still on the basis the representation in the Fig. 2 in that the basic base 4a in the insertion direction E has a width B ₁ which corresponds to the width B _{2 of} the basic socket extension 4b or, in the exemplary embodiment, exceeds this. The basic socket receptacle 11 is equipped with an insertion depth T ₁ , which is smaller than the insertion depth T _{2 of} the basic socket extension receptacle 10 is formed. Of course, this is not mandatory and is only to be understood as an example.

Claims (11)

UV illumination device, in particular UV lamp arrangement for solidifying light-curing gel in the course of a fingernail treatment, with at least one UV lamp (2) with lamp body (3) and lamp base (4a, 4b) and with a lamp holder (2) for receiving of the lamp cap (4a, 4b), wherein - The lamp base (4a, 4b) at least two parts with a contacts (5) bearing base base (4a) and a cross-sectionally tapered base base extension (4b) is formed, wherein further - The base socket (4a) in a base socket (11) and the base socket extension (4b) in a basic socket extension receptacle (10) of the lamp socket (2) engage, and wherein at least the basic base extension (4b) has at least one recess (8) running in the plug-in direction (E), in which a corresponding projection (9) in the basic socket extension receptacle (10) engages, or vice versa,
characterized in that - The recess (8) and the projection (9) each have a circular segment and / or arc segment-shaped cross-section. Apparatus according to claim 1, characterized in that the recess (8) and the projection (9) in the insertion direction (E) are designed to extend continuously. Apparatus according to claim 1 or 2, characterized in that two opposing recesses (8) and associated projections (9) are realized. Apparatus according to claim 3, characterized in that the recesses (8) are provided on each broad side of the basic cubicle extension (4b) designed as a largely cuboid block. Apparatus according to claim 3 or 4, characterized in that the two recesses (8) are arranged mirror-symmetrically with respect to a mirror symmetry plane (S ₂ ) of the basic socket extension (4b). Device according to one of claims 3 to 5, characterized in that the two recesses (8) in each case the contacts (5) are assigned to the basic socket (4a). Apparatus according to claim 6, characterized in that the respective recess (8) in cross section describes a circular arc around the associated contact (5). Device according to one of claims 1 to 7, characterized in that the base socket extension (4b) comprises lateral latching lugs (6) which by corresponding latching springs (7) in the lamp socket (2) are engaged behind in the installed position. Apparatus according to claim 8, characterized in that the detent springs (7) on the lamp cap (2) are integrally formed. Device according to one of claims 1 to 9, characterized in that the basic base (4a) in the insertion direction (E) has a width (B ₁ ) which corresponds to the width (B ₂ ) of the basic socket extension (4b) or exceeds. Device according to one of claims 1 to 10, characterized in that the base socket receiver (11) with an insertion depth (T ₁₎ equipped smaller than the insertion depth (T ₂₎ is formed of the base socket extension receiver (10).

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