JPH0718095Y2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a lighting device such as a stand.

[Conventional technology]

2. Description of the Related Art Conventionally, there is a stand in which a lamp is provided at the tip of a rotatable arm. As shown in FIG. 4, for example, a hinge 61 is fixed to a base end of the arm 60, and the hinge 61 is rotatably press-fitted into a tightening fitting 62 to screw the screw 63 into the arm rotating mechanism.
, Or a hinge 65 fixed to an arm 64 as shown in FIG. 5 is rotatably press-fitted into a tightening fitting 66 provided on the instrument body and fixed with a screw 67.

The examples shown in FIGS. 4 and 5 also have a function of producing a click sound and a holding force in accordance with the angle setting of the arms 60 and 64, respectively. In the case of the example shown in FIG. 4, a steel ball 68 that is biased by a coil spring 69 is provided in the hinge 61,
When the arm 60 is rotated, the steel ball 68 projects into and out of the fitting hole 70 of the fastening fitting 62, and a click sound is generated. Further, in the case of the example of FIG. 5, the hinge 65 is provided with saw-toothed concavities and convexities 71, and the leaf spring 72 fixed to the fastening metal fitting 66 is repelled to generate a click sound.

[Problems to be solved by the device]

In the structure shown in FIG. 4, in order to obtain a sufficient holding force of the arm 60, the screw 63 is strongly tightened to tighten the tightening bracket 60 and the hinge 61.
There is a problem that the steel balls 68 enter the inside of the coil spring 69 as shown in FIG. Further, in the case of the example of FIG. 5, since the sound is generated later than the operation of the arm 64, the angle cannot be set by the click sound.

Therefore, an object of the present invention is to provide a lighting device that reliably generates a click sound without delay with the rotation of an arm.

[Means for Solving the Problems]

The luminaire of the present invention has a substantially U-shaped fastening member, has a horizontal axis between both side plates of the fastening member, and has a circle on the inner surface of one side plate of the fastening member with the horizontal axis as the center. An instrument body having a plurality of recesses arranged in an arc shape, which is clamped and clamped by the tightening member, has an axial hole penetrating the horizontal shaft, and has a side surface opening hole facing the recess. A pair of spheres inserted into the side surface opening hole, and a coil spring biased so that a part of the sphere outside the sphere protrudes from the side surface opening hole and is fitted into the recess. It is provided with a hinge that it has, an arm that fixes this hinge to the base end, and a lamp attached to the tip of this arm.

[Action]

According to the lighting device of the present invention, the hinge of the arm is rotatably press-fitted into the tightening member of the main body of the device, and the ball urged to project to the side surface of the hinge with the rotation of the arm projects into the recess of the tightening member. A click sound is generated when the player is sunk. Inside the hinge, a pair of spheres are provided side by side at one end of the coil spring, and a part of the outer sphere of the pair of spheres fits into the recess of the tightening member to produce a click sound. The sphere that gives the click feeling does not make sliding contact with the coil spring, and does not enter into the coil spring, but comes into point contact with the inner sphere supported by the coil spring. There is no delay in the feel or sound, and it occurs reliably.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 2 shows an exploded view of this embodiment. 10 is a base (made of styrene), 11 is a back plate, 12 is an inverter block 13,
Reference numeral 16 denotes an instrument body lower case (manufactured by heat-resistant styrene) in which the touch switch lead wire 14, lamp wire 15 and the like are incorporated, and 16 is an instrument body upper case. Further, 17 is a bottom plate of the lower case 12 of the instrument main body, 18 is a power line, 19 is a touch switch, and 20 is an instrument nameplate. Reference numeral 21 denotes an arm (aluminum extrusion molding) having a lamp (not shown) attached to the tip thereof, and the base end thereof is inserted into notches 35 and 36 of a pair of left and right hinges 22 and 23 (manufactured by Duracon). Inside the hinge 22, a tubular body 28 having an opening on the side surface is provided, and inside the tubular body 28, a pair of steel balls 29, 30 and a coil spring 31 are provided. Then, the hinges 22 and 23 are fixed to each other with screws 27. 24 is a substantially U-shaped tightening member (made of stainless steel), in which hinges 22 and 23 are rotatably fitted around a horizontal axis, and a screw 25 also serving as a horizontal axis is tightened.
Hinge 22,23 and each screw insertion hole 37,38,40 of arm 21
It is inserted through and is fastened to the nut 26. By tightening the screw 25 and pressing the tightening member 24 against the hinges 22 and 23, the arm 21
The basic friction holding force of is obtained. Tightening member 24 is screw 33
Is fixed to the bottom plate 17 of the instrument body case. It should be noted that the inner surface of the tightening member 24 has a ball 30 with the rotation of the hinges 22 and 23.
Concave portions 41 formed of a plurality of through holes are provided side by side on the trajectory drawn by. Further, 32 is a spring fixed to the screw 33, and one end of the spring is inserted into the base end of the arm 21 to regulate the tilt of the arm 21.

FIG. 1 shows an enlarged view of the hinges 22 and 23. The arm 21 is rotatably inserted in the slit 34 of the instrument body upper case 16, and the outer ball 30 has a part of the hinge 22. It protrudes from the side surface opening hole 42 and is fitted into the recess 41 of the tightening member 24.

According to the lighting apparatus configured as described above, the ball 30 that is biased to project toward the hinge 22 as the arm 21 rotates causes the ball 30 to project and retract in the recess 41 of the fastening member 24, and a click sound is generated. Another sphere 29 is interposed and separated between the sphere 30 that generates a click sound and the coil spring 31 that biases the sphere 30 to project, and the sphere 30 that makes a click sound is inside the coil spring 31. Without getting in,
Make point contact with sphere 29. Therefore, the degree of freedom of the ball 30 is high, and the click sound is reliably generated without delay as the arm 21 rotates.

The recess 41 of the fastening member 24 may be a recess into which the ball 30 can be fitted, instead of the through hole.

Another embodiment of this invention is shown in FIG. This example
A coil spring 31 and large-diameter and small-diameter balls 43, 44 are arranged side by side in a cylindrical body 28 of the hinge 22. The side surface of the hinge 22 is formed with an opening hole 45 through which only a small diameter ball 44 can project.

Also in the luminaire thus configured, the same effect as that of the first embodiment can be obtained. Further, even if the ball 44 is worn or the hinge 22 is damaged and the ball 44 comes off, the click sound can be generated by the large diameter ball 43 inside.

[Effect of device]

According to the luminaire of the present invention, the hinge of the arm is rotatably press-fitted into the tightening member of the main body of the lighting fixture, and the ball urged to project to the side surface of the hinge with the rotation of the arm projects into the recess of the tightening member. A click sound is generated when the player is sunk. Inside the hinge, a pair of spheres are provided side by side at one end of the coil spring, and a part of the outer sphere of the pair of spheres fits into the recess of the tightening member to produce a click sound. The sphere that gives the click feeling does not make sliding contact with the coil spring, and does not enter into the coil spring, but comes into point contact with the inner sphere supported by the coil spring. It is possible to obtain an effect that the feel and the sound are generated without delay.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial sectional view of an embodiment of the present invention, FIG. 2 is a partial exploded perspective view thereof, and FIG. 3 is a partial sectional view of another embodiment of the present invention. FIG. 5 is an exploded perspective view of a conventional example, FIG. 5 is an exploded perspective view of another conventional example, and FIG. 6 is an explanatory view of defects of the conventional example. 12… Lower body case of appliance, 16… Upper case of appliance body, 21
... Arms, 22, 23 ... Hinge, 24 ... Tightening member, 25 ... Screw that also serves as a horizontal axis, 29, 30 ... Ball, 31 ... Coil spring, 41 ... Recess, 42

Claims (1)

[Scope of utility model registration request] 1. A substantially U-shaped tightening member, a horizontal shaft is provided between both side plates of the tightening member, and an arc is formed on the inner surface of one side plate of the tightening member with the horizontal shaft as the center. An instrument body having a plurality of arranged recesses, which is clamped and clamped by the tightening member, has an axial hole penetrating the horizontal shaft, and has a side surface opening hole facing the recess, A hinge having a pair of spheres inserted into the side surface opening hole, and a coil spring biased so that a part of the sphere outside the sphere protrudes from the side surface opening hole and is fitted into the recess. A lighting fixture including an arm having the hinge fixed to the base end thereof, and a lamp attached to the tip of the arm.