JPH058027U - Adjustable hinge device - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to freely adjust the tightening torque of the coil spring regardless of variations in the inner diameter of the coil spring. [Structure] A rotary shaft 11 and a fixed shaft 6 arranged on the same axis, and the rotary shaft 11 and the fixed shaft 6 are inserted over the outer circumferences of the rotary shaft 11 and the fixed shaft 6 so as to rotate integrally with the rotary shaft 11, and a tightening torque is applied to the fixed shaft 6. Coil spring 13 sliding against
In the hinge device with adjustable angle, the fixed shaft 6 is constituted by an elastic shaft, and the diameter D of the fixed shaft 6 is adjusted against the elasticity by a tapping screw 16 screwed into the center of the fixed shaft 6. It is characterized by adjusting the torque.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hinge device for angle adjustment, which is most suitable for adjusting the angle of LCD displays of laptop computers, word processors, etc., and in particular, it utilizes the tightening torque of the coil springs without permission. It is related to the one that enables angle adjustment of the floor.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, as shown in FIG. 2, in an electronic device 1 such as a laptop personal computer or a word processor, an LCD display 3 mounted on an upper part of an electronic device main body 2 is continuously stepped around a rotation axis 4 in a direction of an arrow a. An angle adjustable hinge device 5 is used to make the angle adjustable.

As shown in FIG. 3, this adjustable hinge device 5 fixes a bracket 6 a at one end of a fixed shaft 6 made of synthetic resin to the electronic device main body 2 with a screw 7, and fixes the fixed shaft 6 to the fixed shaft 6. The cylindrical rotary shaft 11 is fixed to the bracket 10, which is fixed to the rotary shaft center 4 by the screw 9 on the display body 8, and the rotary shaft 11 is inserted around the small diameter shaft 6b at the tip of the fixed shaft 6. The tip of the small diameter shaft 6b is locked to the bracket 10 by the washer 12. Then, one end side 13a of the coil spring 13 inserted over the outer circumferences of the fixed shaft 6 and the rotary shaft 11 is press-fitted and fixed to the outer circumference of the rotary shaft 11, and the other end side 13b is tightened to the outer circumference of the fixed shaft 6 with a torque ( The coil spring 13 is lightly press-fitted slidably against the frictional force due to the tightening of the inner diameter of the coil spring 13.

In this angle adjustable hinge device 5, when the LCD display 3 is rotated in the direction of arrow a in FIG. 2, the rotary shaft 11 is integrated with the display main body 8 via the bracket 10 in FIG. 4 is rotated in the direction of arrow a. At this time, the other end 13b of the coil spring 13 whose one end 13a is rotated integrally with the rotary shaft 11 is slid on the outer periphery of the fixed shaft 6 against the tightening torque. The tightening torque fixes the rotary shaft 11 to the fixed shaft 6 at an arbitrary position without permission, so that the LCD display 3 in FIG. 2 is angularly adjusted around the rotation axis 4 without permission. be able to.

[0005]

[Problems to be solved by the device]

 However, since the conventional angle adjustable hinge device 5 uses the frictional force due to the tightening of the inner diameter of the coil spring 13 against the outer circumference of the fixed shaft 6, the tightening torque varies greatly due to the variation in the inner diameter of the coil spring 13. It is easy to lose. Then, in order to obtain a predetermined tightening torque, there is a problem that the defective rate becomes large and the cost becomes high.

The present invention has been made to solve the above problems, and provides an angle adjustable hinge device capable of freely adjusting the tightening torque of a coil spring regardless of variations in the inner diameter of the coil spring. The purpose is to do.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, an angle adjustable hinge device of the present invention is inserted into a rotary shaft and a fixed shaft arranged on the same axial center, and an outer periphery of the rotary shaft and the fixed shaft, and In an angle adjustable hinge device having a coil spring which slides against a tightening torque with respect to a rotating shaft or a fixed shaft with rotation, the coil spring of the rotating shaft or the fixed shaft resists the tightening torque. The shaft on the side to be slid is constituted by an elastic shaft, which is screwed into the center of the elastic shaft to change the diameter of the elastic shaft against the elasticity, thereby adjusting the tightening torque. It is characterized by having.

[0008]

[Action]

 The angle adjustable hinge device of the present invention configured as described above can adjust the tightening torque of the coil spring by adjusting the adjusting screw to change the diameter of the elastic shaft against the elasticity. Therefore, even if the inner diameter of the coil spring varies, the tightening torque can be adjusted freely.

[0009]

【Example】

 Hereinafter, one embodiment of the angle adjustable hinge device of the present invention will be described with reference to FIG. It should be noted that the same structural parts as those in FIGS. 2 and 3 are denoted by the same reference numerals to omit redundant description.

First, the fixed shaft 6, the bracket 6a, and the small-diameter shaft 6b are integrally molded with synthetic resin, which is an elastic member, to form the fixed shaft 6 as an elastic shaft. Then, the recess 14 and the pilot hole 15 for the tapping screw are formed in the same axis center on the side opposite to the small diameter shaft 6a at the center of the fixed shaft 6. Then, a tapping screw 16 which is an adjusting screw is screwed into the prepared hole 15, and the tapping screw 16 is adjusted in the directions of the arrows b and c, so that the diameter D of the fixed shaft 6 is elastically resisted in the directions of the arrows d and e. It is configured so that it can be changed. The rotary shaft 11 and the bracket 10 are integrally formed of synthetic resin.

Then, one end side 13 a of the coil spring 13 inserted over the outer circumferences of the fixed shaft 6 and the rotary shaft 11 is press-fitted and fixed to the outer circumference of the rotary shaft 11, and the other end side 13 b is fixed. It is lightly press-fitted on the outer periphery of the so that it can slide against the tightening torque.

Then, as shown in FIG. 1A, when the tapping screw 16 is loosened in the direction of arrow b, the diameter D of the fixed shaft 6 contracts due to its elastic contracting force, and as shown in FIG. As shown, when the tapping screw 16 is screwed in the direction of arrow c, the diameter D of the fixed shaft 6 is expanded in the direction of arrow e against elasticity.

Therefore, even if the inner diameter of the other end 13b of the coil spring 13 varies, the diameter D of the fixed shaft 6 is variably adjusted against the elasticity by the tapping screw 16 in the directions of arrows d and e. The tightening torque of the other end side 13b of the coil spring 13 with respect to the outer periphery of the fixed shaft 6 can be freely and easily adjusted.

Then, after the predetermined tightening torque is obtained, the bond 17 is poured into the recess 14 of the fixed shaft 6 so that the tapping screw 16 is bonded to the fixed shaft 6. It's convenient because it doesn't flow into.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, one end side 13a of the coil spring 13 is fixed to the outer circumference of the rotary shaft 11 and the other end side 13b is slid on the outer circumference of the fixed shaft 6, but the opposite is true. Then, one end side 13a of the coil spring 13 is press-fitted and fixed to the outer circumference of the fixed shaft 6, and the other end side 13b is lightly press-fitted to the outer circumference of the rotary shaft 11 so as to be slidable against the tightening torque. Good. Then, in this case, the rotary shaft 11 is molded with a synthetic resin that is an elastic member, the recess 14 and the pilot hole 15 are molded in the center of the rotary shaft 11, and the tapping screw 16 is centered in the rotary shaft 11. It is screwed in so that the diameter D of the rotating shaft 11 can be variably adjusted against elasticity.

Further, the angle adjustable hinge device of the present invention is not limited to a hinge device such as an LCD display, but can be applied to a hinge device of various devices.

[0018]

[Effect of the device]

 Since the angle adjustable hinge device of the present invention is configured as described above, it has the following effects.

By adjusting the adjusting screw to change the diameter of the elastic shaft against the elasticity, the tightening torque of the coil spring can be adjusted, and even if the inner diameter of the coil spring varies. Since the tightening torque can be adjusted freely, the defect rate can be dramatically reduced and a large cost down is possible.

[Brief description of drawings]

FIG. 1 is a sectional view illustrating an angle adjustable hinge device according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating angle adjustment of an LCD display.

FIG. 3 is a cross-sectional view illustrating a conventional angle adjustable hinge device.

[Explanation of symbols]

 1 Electronic Equipment 3 LCD Display 4 Rotating Shaft Center 5 Hinge Device 6 Fixed Shaft (Elastic Shaft) 11 Rotating Shaft 13 Coil Spring 13a Coil Spring One End 13b Coil Spring Other End 15 Pilot Hole 16 Tapping Screw (Adjusting Screw) D Fixed Shaft (Elastic shaft) diameter

Claims (1)

[Claims for utility model registration] [Claim 1] A rotary shaft and a fixed shaft arranged on the same shaft center, and the rotary shaft and the fixed shaft inserted over the outer circumferences of the rotary shaft and the fixed shaft.
An angle adjustable hinge device having a coil spring that slides against a tightening torque with respect to a rotating shaft or a fixed shaft as the rotating shaft rotates, wherein the coil spring of the rotating shaft or the fixed shaft is tightened. The tightening torque is adjusted by forming the shaft on the side that slides against the torque by an elastic shaft, and screwing it into the center of the elastic shaft to change the diameter of the elastic shaft against the elasticity. An angle adjustable hinge device having an adjusting screw.