JP2008196655A - Tilt hinge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tilt hinge capable of satisfying a specification where hinge torque is increased in response to increase of a rotating speed, allowing a simple damper effect to be exerted by a friction hinge by itself by suppressing acceleration in drop, and capable of providing specifications where touch is smooth in rotation by using a special sliding member, and durability is high even if lipids are not applied. <P>SOLUTION: A mixture material of a fluororesin compound is used for a sliding member to both surfaces of a movable bracket, and the sliding member is formed by attaching the mixture member to a substrate surface of a steel plate or the like, or filling it in a substrate of a honeycomb material or the like. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a tilt hinge.

A conventional tilt hinge using a friction plate uses a metal or a resin plate as a sliding member and applies a grease to the sliding surface to ensure friction torque performance.
In addition, the friction torque was a constant specification regardless of the rotational speed.

However, in the conventional tilt hinge, when the friction torque is set such that the opening / closing body falls under its own weight, the opening / closing body must be made smaller than the moment of the opening / closing body. In addition, there is a problem that a large impact or sound is generated when the door is closed.
Furthermore, in order to ensure durability, it is essential to apply grease and other fats and oils.

The problem to be solved by the present invention is that the hinge torque can be increased as the rotational speed increases, and the acceleration at the time of dropping is suppressed, and a simple damper effect is exhibited with a single friction hinge. An object of the present invention is to provide a tilt hinge that can be used.
Furthermore, by using a special sliding member, there is provided a tilt hinge that has a smooth feel during rotation and can obtain a highly durable specification without applying oils and fats.

  The hinge of the present invention is characterized in that a mixed material of a fluororesin compound is used for a sliding member with both surfaces of the movable bracket. Further, the sliding member is a member in which the mixed material is attached to a substrate surface such as a steel plate or filled in a substrate such as a honeycomb material. Further, the sliding member is made of greaseless.

1) When dropping the open / close body by its own weight, acceleration of the falling speed can be suppressed, and impact and sound at the time of grounding can be suppressed as compared with the conventional friction plate hinge.
2) Since the hinge torque increases as the rotational speed increases, a simple damper effect similar to that using a damper can be obtained.
3) Since the surface of the sliding member is soft, a smooth rotation feel can be obtained.
4) Since the sliding member is grease-free, it is easy to install and has excellent workability, reducing man-hours.
5) Since the sliding member is grease-free, special handling is not required even when the end user installs it, and peripheral members are not soiled.
6) When the damper effect is not required, for example, when the opening / closing body is closed slowly, there is no increase in torque, and therefore the ground can be grounded smoothly without generating an excessive damper effect.

  FIG. 1 is a view showing an embodiment of a tilt hinge according to the present invention, wherein 1 is a fixed member, 2 is a movable bracket, 3 is a fixed shaft, 4 is a sliding member, and 5 is a pressing member.

  The fixing member 1 is attached and fixed to a device main body (not shown) such as an OA device such as a notebook personal computer through an attachment hole 1a, for example.

  The movable bracket 2 includes an attachment portion 2a and a bracket portion 2b, and is attached and fixed to an opening / closing body (not shown) such as an opening / closing lid of an OA device such as a notebook computer via an attachment hole 2a '. .

  The base end of the fixed shaft 3 is fixedly attached to the fixed member 1. A hinge shaft 3 a is integrally formed at the distal end portion of the fixed shaft 3 and is inserted into the pivot mounting hole 2 b ′ of the movable bracket 2.

  The sliding member 4 includes two friction plates 4a and 4b. The friction plate 4a is sandwiched between the fixed shaft 3 and the movable bracket 2, and the friction plate 4b includes the movable bracket 2 and the pressing member. 5 is interposed. That is, the friction plates 4a and 4b are in frictional contact with both surfaces of the movable bracket 2, respectively.

  A mixed material of a fluororesin compound is used for the friction surface of the sliding member 4 (friction plates 4a, 4b). More specifically, the mixed material is a material that is affixed to a substrate surface such as a steel plate or filled in a substrate such as a honeycomb material. In particular, the sliding member 4 is preferably configured to be greaseless. The sliding member 4 is desirably provided with a back metal such as a steel plate in order to ensure strength, but it is not particularly necessary for the honeycomb material.

The pressing member 5 is composed of several disc springs 5a (three in this embodiment) and pressing washers 5b that sandwich these disc springs 5a. As shown in FIG. 1, in the assembled state, the outermost pressing washer 5b is pressure-bonded to the hinge shaft 3a by caulking or the like, for example. Instead of crimping by caulking, nut tightening may be used.
As a result of the crimping, a resilient force is generated in the disc spring 5a, and the resilient plates force the friction plates 4a and 4b to sandwich the movable bracket 2 (particularly the bracket portion 2b), and a predetermined friction torque is generated. It has come to occur.

  Since the tilt hinge of the present embodiment is configured as described above, when the moment of the opening / closing body is weak and the rotation speed of the movable bracket 2 is low, the friction torque is low, and conversely the rotation speed is high. In this case, the friction torque becomes high, and the friction torque can be changed according to the rotation speed.

  In the above embodiment, the friction plate 4a is incorporated between the fixed member 1 and the movable bracket 2. However, if the friction plate 4b has a sufficient thickness and there is no problem in strength. As shown in FIG. 3, the friction plate 4a may be omitted.

  FIG. 4 is a graph comparing the rotational torque change of the tilt hinge (one example) of the present invention with the rotational torque change of the conventional hinge. The torque value of the present invention increases as the rotational angular velocity increases. I can understand that.

It is a perspective view which shows one Example of the tilt hinge of this invention. FIG. 2 is an exploded perspective view of FIG. 1. It is a perspective view which shows another Example of the tilt hinge of this invention. It is the graph which compared the rotational torque change of the tilt hinge of this invention, and the rotational torque change of the conventional hinge.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed member 1a Mounting hole 2 Movable bracket 2a Mounting part 2a 'Mounting hole 2b Bracket part 2b' Pivoting hole 3 Fixed shaft 3a Hinge shaft 4 Sliding member 4a Friction plate 4b Friction plate 5 Press member 5a Belleville spring 5b Press washer

Claims (3)

A tilt hinge characterized in that a mixed material of fluororesin compound is used for a sliding member on both surfaces of a movable bracket. 2. The tilt hinge according to claim 1, wherein the sliding member is a member in which the mixed material is attached to a substrate surface such as a steel plate or filled in a substrate such as a honeycomb material. The tilt hinge according to claim 1, wherein the sliding member is made of greaseless.