DE20219478U1 - Electrical lighting frame is in form of pivot mounted tube - Google Patents

Abstract

The electrical lighting frame has a stand section [50] that fits into a base. This has a pivot support point for a mounting [10] for the light support tube [40]. The tube has a locking feature to secure it on the mounting. The pivot point has an insert that may be tightened to set a specific position.

Description

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ZEITLER"DICKEL ^# ■· KÄNDLBINDER PATENT ATTORNEYS ■ EUROPEAN PATENT AND TRADEMARK ATTORNEYS

PO BOX 26 02 51 D-80059 MUNICH TELEPHONE: +49-89-22 18 06 FAX: +49-89-22 26 27 E-MAIL: masterpat@t-online.de

HERRNSTRASSE15 D-80539 MUNICH

9330 os

Huangslite Industrial Co., Ltd.

No. 9, Lane 379, Chung-Hwa Rd.

Su-Lin, Taipei Hsien Taiwan, R.O.C.

Lamp frame

The present invention relates to a lamp frame, in particular to a lamp frame of a desk lamp, which essentially consists of a rotatable support formed from two mutually hot-welded housings, a support rod, a joint piece, a connecting piece and a rotary axis, wherein the connecting piece and the joint piece can each be arranged for connection to the support rod and for connection to a rotary axis at the two ends of this rotatable support so that the lamp frame can be quickly assembled and its illumination angle can be adjusted as desired.

As is well known, a table lamp or desk lamp essentially consists of a lamp base and a lamp frame. The lamp base is used to position a lamp stably on a desk or flat surface. The lamp frame is used to adjust the angle in order to achieve any lighting environment. The lamp frames (lamp frames) of a conventional table lamp are usually attached and held together by pins and screw-on pieces. A screw-on piece is used to control the movement and attach the two adjacent lamp frames in order to be able to set any lighting angle of a lamp frame.

The disadvantage of the above-mentioned constructions, however, is that the lamp frames have to be rigidly attached using pins and screw-on pieces. Therefore, assembling these lamp frames is not only always relatively laborious and rather impractical, but also time-consuming.

The invention is therefore based on the important task of designing a lamp frame of the type described at the outset in such a way that the two lamp frames can be connected by means of a rotatable support and this rotatable support consists of two housings, wherein a connecting piece and a joint piece can be arranged at the two ends of this rotatable support, each for connection to a support rod and for connection to a rotation axis.

It is also proposed to provide a locking groove at the rear of the connector opposite the locking hook provided on the lamp frame for mutual locking, and a hinged piece may be hinged to a pivot axis at another end of this pivoting support so that a lamp frame can be assembled as desired by adjusting such pivot axis at different angles in order to obtain suitable lighting.

The invention is based on a further object of designing a lamp frame of the type described at the outset in such a way that the joint piece is designed in a ring shape in order to be able to insert the axis of rotation in a form-fitting manner in this ring-shaped joint piece.

The tasks set are solved by the features specified in the protection claims.

The subject matter of the invention is shown as an example in the drawing. It shows:

Fig. 1 shows an embodiment of a lamp frame according to the invention;

Fig. 2 is a schematic representation of the rotatable support according to the invention;

Fig. 3 is a sectional view of the invention to show the locking function of the locking hook

and the locking groove;
Fig. 4 is a further sectional view of the invention to illustrate the locking function of the

locking hook and locking groove;
Fig. 5 is a further sectional view of the invention to illustrate the locking function of the

locking hook and locking groove;
Fig. 6 is a side sectional view of the connecting portion between the connector and the support rod of the invention along the line AA of Fig.

2;
Fig. 7 is a side sectional view of the connecting portion between the connector and the support rod of the invention along the line BB of Fig.

2 and

Fig. 8 is a side sectional view of the connecting portion between the connector and the support rod of the invention along the line C-C of Fig. 2.

A lamp frame according to the invention essentially comprises, as can be seen in Fig. 1 and Fig. 2, a rotatable support (10) and a support rod (40). This rotatable support (10) is designed in the form of a hollow rod made of a left housing (11) and a right housing (12) and has at one end a connecting piece (20) with a guide rail (21) and at the other end a rotatable joint piece (30), wherein at the undercut of this guide rail (21) there is an arcuate spring (22) with an extended locking groove (23). This locking groove (23) is designed on the opposite side of a locking hook (41) formed on the support rod (40). The rotatable joint piece (30) is designed in a ring shape to accommodate a rotation axis (50) so that the assembly angle of the support rod (40) can be adjusted quickly and as desired using this rotation axis (50).

The support rod (40) is hollow so that the connecting piece (20) of the rotating support (10) can be firmly and stably inserted into it when assembled. A locking hook (41) is additionally formed on the end of the support rod facing the connecting piece (20).

As shown in Fig. 3, Fig. 4 and Fig. 5, the locking hook (41) of the support rod (40) can, in practical assembly, be moved along the guide rail (21) of the connecting piece (20) in the direction of the rotating support (10) and as soon as the locking hook (41) has reached the arcuate spring (22) of the connecting piece (20), the locking hook (41) can press the arcuate spring (22) downwards. This arcuate spring (22) is then suitably deformed and the locking hook (41) can be locked in the locking groove (23). At the same time, the arcuate spring (22) can be pushed back upwards and the locking hook (41) can be completely locked in the locking groove (23) so that a positive connection between the connecting piece (20) and the support rod (40) can be seen.

The joint piece (30) attached to the other end of the rotating support (10) serves for connection to a rotary axis (50). The joint piece (30) is designed in a ring shape independently of the right housing (12) so that the rotary axis (50) can be effectively supported in the ring-shaped joint piece (30) during movement and at the same time the strength of the joint piece (30) can be increased in order to avoid possible damage to the joint piece (30) during the function of the rotary axis (50).

The rotating support (10) shown in Fig. 2 and Fig. 6 can be manufactured from a left housing (11) and a right housing (12) by a hot forming process. The connecting piece (20) consists of a left locking device (24) and a right locking device (25), and a projection (26) and a groove (27) are provided on the connecting part of the two left locking devices (24) and a right locking device (25). After hot welding, the projection (26) and the groove (27) can be tightly and firmly connected together. In addition, a receiving space (60) can be designed between the connecting piece (20) and the rotating support (10) for locking the support rod.

According to Fig. 7 and Fig. 8, a projection (13) and a groove (14) can be formed respectively at the connection point of the left and right housings (11, 12) so that after heat welding the connection point of the left and right housings (11, 12) can be tightly secured to form a rotatable support (10).

The cross-section of the rotary support (10) at the end of the connecting piece (20) is made larger (see Fig. 2) and also has a larger cavity for receiving a left heat-welding rod (15) and a right heat-welding rod (16) (see Fig. 7). After heat-welding the left heat-welding rod (15) and the right heat-welding rod (16), this can ensure a positive support in the rotary support (10) in order to avoid any risk of damage to the rotary support (10) due to unexpected force.

The designations of the individual parts of the embodiment according to the present invention

and the drawings are merely illustrative of the preferred embodiment of the present invention and are not intended to limit the scope of the present invention. It is to be understood that the embodiment described above may be embodied in various ways without departing from the spirit and purpose of the present invention. Accordingly, the following claims, which form a part of this invention, also apply to any modifications of the embodiment.

A lamp frame is described which essentially consists of a rotatable support made up of two mutually hot-welded housings, a support rod, a joint piece, a connecting piece and a rotary axis, wherein the connecting piece and the joint piece can each be arranged for connection to the support rod and for connection to a rotary axis at the two ends of this rotatable support, so that the lamp frame can be assembled as desired by adjusting this rotary axis at different angles in order to be able to obtain suitable lighting.

Claims (5)

1. Lamp frame, which essentially consists of a rotatable support and a support rod, characterized in that a connecting piece with a guide rail and a rotatable joint piece each at the two ends of the rotatable support, with the rear part of this guide rail having an arcuate spring with an extended locking groove and the rotatable joint piece designed to receive a rotary axis; that the support rod is hollow and designed to be opposite the connecting piece of the rotatable support so that the connecting piece of the rotatable support can be firmly and stably inserted into it when assembled; that a locking hook can also be arranged on the end of the support rod facing the connecting piece so that the locking hook can be firmly locked with the locking groove in order to be able to set the assembly angle of a lamp frame as desired by the rotatable articulation between the rotatable support and the rotary axis. 2. Lamp frame according to claim 1, characterized in that the rotatable support consists of two separate housings and one housing thereof has an annular joint piece. 3. Lamp frame according to claim 2, characterized in that a receiving space is formed between the rotatable support and the connecting piece for locking the support rod. 4. Lamp frame according to claim 2, characterized in that a projection and a groove each have at the connection point of the two housings so that after heat welding the connection point of these two housings can be tightly secured to form a rotatable support. 5. Lamp frame according to claim 2, characterized in that the rotatable support has a left heat-welding rod and a right heat-welding rod and after heat-welding the left heat-welding rod and the right heat-welding rod, this form-fitting support can be ensured in the rotatable support.