JPS639942Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to lighting equipment such as desk lamps.

[Purpose of invention]

This idea allows the light fixture mounting arm to be attached to the support base.
To provide a lighting fixture which can be rotated 360 degrees, can be tilted at any angle within a predetermined range, and has a good appearance without a lead wire appearing outside.

[Disclosure of invention]

In this invention, the connector is formed into a cylindrical T-shape, and conductor parts are provided on the legs and both shoulders, and the legs are rotatably fitted to the support base and electrically connected. The part is rotatably held on the lamp mounting arm and electrically connected. For this reason, the arm is
It can be rotated 360 degrees and swung in a direction perpendicular to it, and the appearance is improved because electrical parts such as lead wires are not exposed to the outside.

An embodiment of this invention is shown in FIGS. 1 to 14. In other words, this desk lamp has a support base 1
A middle part of the arm 2 is connected to the first connector 3, a lamp 5 is connected to one end of the arm 2 via a second connector 4, and a weight balance with the lamp 5 is connected to the other end of the arm 2. A balancer 6 is provided to take the balance.

The support base 1 is made of synthetic resin and has a hollow conical shape, and a down transformer 7 that also serves as a weight is installed at the inner bottom, a switch 8 is provided on the periphery, and a power cord (not shown) is connected from the bottom side. As it is pulled out, a support hole 9 is formed at the upper end, a plurality of elastic hooks 10 are suspended inward from the edge of the hole (in the direction of removing the mold), and a terminal holder 11 is attached to the screw 1 at the bottom of the hole.
It is attached by 2. On the upper surface of the terminal holder 11, contact pieces 13 and 14 having a substantially U-shape and having different widths are arranged at a predetermined interval in the vertical direction.
Terminals 15 and 16 are suspended from the bottom surface of the terminal 1 (FIG. 3, FIG. 6, FIG. 7, and FIG. 8).

The first connector 3 is cylindrical and T-shaped, and is divided into two parts in the radial direction as shown in FIG. and power supply spring 19,2
The upper end portion of 0 is formed by bending protrusions 21 and 22, and is exposed through notches 23 formed in both T-shaped shoulders 3a. Further, the lower end portion of the power supply spring 19 is arranged in the lower end center groove 24 of the leg portion 3b, and the lower end portion of the power supply spring 19
The lower end of the projection 25 is bent and exposed through the notch 26. A contact pin 27 is fitted into the central groove 24, and the collar 28 of the pin 27 is fitted into the lateral groove 29, and the spring 1 is placed inside the pin 27.
9 is inserted and caulked. The two divided pieces are brought together, and conductor rings 30 to 32 of the same shape are press-fitted onto both shoulders 3a and leg parts 3b to connect the divided pieces together. At this time, each protrusion 21,
22 and 25 are in contact with the inner peripheral surfaces of the conductor rings 30 to 32, and the pin 27 is held between the legs 3b. As a result, the conductor rings 31 and 32 are electrically connected via the power supply spring 20, and the conductor ring 30 and the pin 27 are also electrically connected through the power supply spring 19. This connector 3 has a conductor ring 32 on the leg 3b.
A circumferential groove 33 is formed on the upper side of the leg portion 3.
b into the support groove 9 of the support base 1, the circumferential groove 33
The hook 10 is engaged with the hook 10 and held by the friction so that the rotation can be adjusted freely. At the same time, the contact 13 is held by the conductor ring 32, and the contact 14 is held by the pin 27, thereby establishing an electrical connection.

The arm 2 has a rectangular cross section that is approximately S-shaped in the longitudinal direction, and has an upper arm 34 and a lower arm 3 that are U-shaped.
5 are adhesively bonded and made into one piece. lower arm 35
A hole 36 for passing the leg portion 3b of the connector 3 is formed near the center of the intermediate portion of the connector 3, and a bearing recess 37 is formed in the upper arm 34 and the lower arm 35 of that portion to allow the shoulder portion 3a of the connector 3 to pass through. It is held in place so that its rotation can be adjusted freely by frictional contact. Also upper arm 3
The proximal ends of power supply springs 38 and 39 are attached to 4, and the distal ends thereof are in elastic contact with the surfaces of conductor rings 30 and 31. The arm 2 has a light fixture mounting recess 40 at the end on the light fixture side, and a pair of power supply springs 4 are installed inside the concave part 40 for mounting the light fixture.
1 and 42 are arranged to face each other, and a bent part 43 is formed at the distal end thereof to protrude in the opposite direction. and the power supply springs 38, 39 and the power supply spring 41,
42 are electrically connected to each other by soldering lead wires (not shown). In this way, the arm 2 can be horizontally rotated through 360 degrees with respect to the support base 1, and can be oscillated in the vertical direction within the range where the edge of the hole 36 comes into contact with the leg 3b. Note that since the weight of the arm 2 is balanced with the lamp 5 by the balancer 6, the bearing recess 37
The arm 2 is held at any tilted position by the frictional force caused by the contact between the power supply springs 38 and 39.

The second connector 4 has a rectangular cylindrical rectangular portion 44 and a cylindrical portion 45 that are integrated in the longitudinal direction, and are divided into two in the radial direction. The rectangular portion 44 has notches 4 on both sides.
A hook 49 is provided on one side of the rectangular portion 44 and a locking portion 50 is provided on the other side to connect them to each other. U-shaped slits 51 and 52 facing opposite to each other are provided on the surface to form elastic pieces 53 and 54, engagement protrusions 55 and 56 are provided on the outer surface of the tips of the elastic pieces 53 and 54, and excessive deflection prevention ribs 57 are provided on the inner surface. stands out. On the other hand, a pair of circumferential ribs 58 are formed on the outer periphery of the cylindrical portion 45, a pair of elastic tongues 59 are provided at the ends, and projections 60 are provided at the ends of the elastic tongues 59.
has been established.

The lamp 5 has a structure in which a socket holder 62 and a reflector plate 63 are attached to the inside of a main body 61 with screws 64, and an incandescent lamp 66 is attached to a socket 65 of the socket holder 62. And the socket base 62 and the main body 61
A bearing recess 67 is formed in between, and the cylindrical portion 45 of the connector 4 is rotatably held therein, and the rib 58 engages with a circumferential groove 68 formed corresponding to the circumferential rib 58. This prevents the connector 4 from coming off, and the protrusion 60 elastically engages with a circumferential groove 69 formed corresponding to the protrusion 60 to provide a frictional force that maintains the rotation stop state. In this way, the lamp 5
The rectangular portion 44 of the connector 4 held in the arm 2 is inserted between the power supply springs 41 and 42 through the recess 40 of the arm 2. When the protrusions 55 and 56 engage with the recesses 70 formed in correspondence with the protrusions 55 and 56 of the rectangular portion 44, the insertion of the connector 4 is positioned, and at the same time, the terminals 47 and 48 come into contact with the power supply springs 41 and 42. In this way, the lamp 5 can be attached to and detached from the arm 2, and its rotation can be adjusted with respect to the cylindrical portion 45 of the connector 4. Note that the lamp socket 65 and the terminals 47, 48 are connected through the cylindrical portion 45 of the connector 4 with a lead wire (not shown).

With this configuration, the arm 2 of this desk lamp can be freely adjusted in rotation with respect to the support base 1, and can be freely adjusted in swing in the vertical direction, so that the lamp 5 can be adjusted freely.
can be rotated to any position around the support base 1 over a range of 360 degrees, and the height can be adjusted. Also, the first connector 3
is integrally assembled with three conductor rings 30 to 32, and since no screws or the like are used, assembly is easy.
Furthermore, since the same parts are used for the conductor rings 30 to 32, the number of parts does not vary. Also, the conductor ring 32
Since the pins 27 are held and supported, the stress on the pins 27 can be held securely and the connector 3 will not be disassembled. Furthermore, the connector 3 can be attached to and detached from the support base 1, making it easy to pack and transport, and since the elastic hook 10 engages with the circumferential groove 33, the connector 3 does not come off easily, ensuring reliable positioning, and the click action allows for easy operation. Good sex.

Furthermore, since the lamp 5 is detachable from the arm 2, it can be easily packed and transported, and can be easily assembled on site. Furthermore, since the second connector 4 is also held by the hook 49 and the lamp 5, assembly parts such as screws are not required. Further, since the lamp 5 is rotatably adjustable with respect to the connector 4, the direction of the lamp can be adjusted in any direction.

In addition, in this invention, the balancer 6 may be omitted as long as the frictional force can be secured between both shoulders of the arm 2 and the connector 3. In addition, the conductor ring 32 is not limited to the pin 27 as a circumferential conductor.
A conductor ring having the same shape as that may be provided on the leg.

[Effect of idea]

As mentioned above, according to the lighting equipment of this invention,
The lamp mounting arm is attached to the support base in a rotatable and swingable manner, and since the lead wires are not exposed to the outside, the appearance is good.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of this invention, Fig. 2 is a front view thereof, Fig. 3 is a sectional view taken along the - line, Fig. 4 is a sectional view taken along the - line, and Fig. 5 is a sectional view taken along the line 2. - line sectional view, Figure 6 is figure 3 - line sectional view,
Fig. 7 is a sectional view taken along the line shown in Fig. 3, Fig. 8 is an exploded perspective view of the support base and arm, Fig. 9 is an exploded perspective view of the T-shaped connector, Fig. 10 is a perspective view showing the lamp part, Fig. 11 The figure is an exploded perspective view of the lamp connector.
2 is a sectional view taken along the line XII-XII in FIG. 10, FIG. 13 is a front view of the lamp portion, and FIG. 14 is a sectional view taken along the line XI-XI. DESCRIPTION OF SYMBOLS 1...Support stand, 2...Arm, 3...First connector, 3a...Both shoulders, 3b...Legs, 4...Second connector, 5...Lamp, 10...Elastic hook, 13, 14
...Contact piece (first contact part), 19, 20... Power supply spring, 21, 22... Projection, 27... Pin (peripheral conductor),
30, 31... Conductor ring, 32... Conductor ring (peripheral conductor), 33... Circumferential groove, 38, 39... Power supply spring (second contact portion).

Claims (1)

[Claims for Utility Model Registration] (1) A T-shaped cylindrical body having a conductor ring on each shoulder, and a pair of circumferential conductors on the legs, connecting the shoulder and the T-shape. A support base having a connector electrically connected to each other through the interior between the legs, and a support base having a pair of first contact portions on which the legs of the connector are rotatably fitted and in contact with each of the circumferential conductors. an arm having a pair of second contact portions that rotatably hold both shoulder portions of the connector and contact each of the conductor rings; and an arm that is attached to the arm and passes through the inside of the arm. A luminaire having a luminaire electrically connected to the section. (2) The connector is divided into two parts and integrated by fitting the conductor rings to both shoulders, and the pair of circumferential conductors consists of a conductor ring and a pin, and the conductor rings are fitted to the legs. By doing so, the pin is sandwiched between the ends of the legs, and a pair of power supply springs are disposed inside the connector so that both ends contact the conductor ring and the pin. ) Lighting equipment listed in item ). (3) The lighting device according to claim 2, wherein the conductor rings have the same dimensions. (4) The support base is registered as a utility model, in which a plurality of elastic hooks are provided in the axial direction from the edge of the support hole through which the legs of the connector are passed, and a circumferential groove is formed in which the hooks engage with the legs. A lighting fixture according to claim (3).