JP6327685B1 - Stepless angle adjustment mechanism - Google Patents

Abstract

A stepless angle adjustment mechanism capable of easily adjusting a tilt angle of an operation surface or the like of a main body steplessly with a simple mechanism. A main body, two gears connected to a shaft of the main body, a base having a cylindrical side portion and a pair of openings in the side portion, and a first surface having a thickness. A non-uniform first cylindrical member and a second cylindrical member having a second surface and a non-uniform thickness, wherein the main body has a portion having the axis smaller than the inner diameter of the side portion of the base. A first cylindrical member is externally fitted to the base, a second cylindrical member is disposed on the first cylindrical member and externally fitted to the base, and a main body is a second cylindrical member. Arranged on the inside, the shaft is arranged inside the opening in the base, the two gears are arranged outside the opening in the base and connected to the shaft, and the two gears are connected to the first cylindrical member. A stepless angle adjusting mechanism that is sandwiched between the first surface and the second surface of the second cylindrical member, and in which the first cylindrical member and the second cylindrical member rotate in the circumferential direction of the base. [Selection] Figure 1

Description

  The present invention relates to a stepless angle adjustment mechanism.

Currently, many desktop devices equipped with touch panels, etc., cannot be adjusted in angle. Even if the angle can be adjusted, it can be fixed at a fixed angle of two or three stages, or it uses an expensive torque hinge. there were. In addition, the provision of the angle adjustment mechanism often impairs the design of the product as a whole.
Patent document 1 etc. are mentioned as an example of the stepless angle adjustment mechanism of a desktop apparatus. In summary, the method of Patent Document 1 is to adjust the apparatus main body to an arbitrary angle with a specific support leg and fix it with a stopper.

Japanese Patent Laid-Open No. 2006-25101

  An object of the present invention is to provide a stepless angle adjustment mechanism that can perform stepless angle adjustment with a simpler configuration without using a torque hinge, can save space, and is excellent in design. .

The stepless angle adjustment mechanism according to the present invention is:
The main body,
Two gears connected to the shaft of the main body,
A base having a cylindrical side portion, and a pair of openings on the side portion, the axis being movable in the vertical direction;
A first cylindrical member having a first surface in contact with the gear and having a non-uniform thickness;
A second cylindrical member having a second surface in contact with the gear and having a uniform thickness;
The main body portion is smaller than the inner diameter of the side portion of the base, and has a portion having the shaft,
The first cylindrical member is externally fitted to the base;
The second cylindrical member is disposed on the first cylindrical member and is externally fitted to the base;
The main body is disposed on the second cylindrical member, and the shaft is disposed inside the opening of the base,
The two gears are arranged outside the opening of the base and connected to the shaft;
The two gears are respectively sandwiched between a first surface of the first cylindrical member and a second surface of the second cylindrical member;
The first cylindrical member and the second cylindrical member rotate in the circumferential direction of the base.

  According to the present invention, it is possible to provide a stepless angle adjustment mechanism that can perform stepless angle adjustment with a simpler configuration without using a torque hinge, can save space, and is excellent in design. .

FIG. 1 is a perspective view showing an embodiment of the stepless angle adjusting mechanism of the present invention before and after assembling each member. FIG. 2 is a perspective view and a side view for explaining the operation of the stepless angle adjusting mechanism of the present invention. FIG. 3 is a perspective view illustrating details of the arrangement of the members in the example of FIG.

  Hereinafter, embodiments of a stepless angle adjusting mechanism according to the present invention will be described with reference to the drawings. In the embodiment, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

  First, the configuration of the stepless angle adjusting mechanism according to the present invention will be described with reference to FIGS. 1 and 3. FIG. 1 is a perspective view showing an embodiment of a stepless angle adjusting mechanism of the present invention. FIG. 3 is a perspective view illustrating details of the arrangement of the members in the example of FIG. In FIG. 3, for the sake of explanation, a part of the cylindrical member or the like is not shown and the gear 2 is visible. The stepless angle adjusting mechanism 10 of FIG. 1 has a main body 5 having a main surface 6, two gears 2 connected to both ends of a shaft 7 of the main body 5, and an opening 9. A base 1 having a cylindrical side portion 12, a first cylindrical member 3 having a first surface 8a in contact with the gear 2 and a non-uniform thickness, and a second surface 8b in contact with the gear. And a second cylindrical member 4 whose thickness is not uniform. In addition, the thickness of a cylindrical member is the thickness of a height direction. The upper surface of the first cylindrical member 3 and the lower surface of the second cylindrical member 4 are in contact with each other. Further, the main body 5 is in contact with the upper surface of the second cylindrical member 4.

  The base 1 has a bottom surface 11 and cylindrical side portions 12. The side portion 12 has a pair of opposed openings 9 through which the shaft 7 of the main body portion is inserted. The opening 9 is preferably a long hole. By making the opening 9 an elongated hole, the shaft 7 and the gear 2 connected to the shaft 7 can move in the vertical direction and are fixed in the circumferential direction.

  The first cylindrical member 3 is fitted on the side portion 12 of the base 1. The first cylindrical member 3 is rotatable in the circumferential direction of the side portion 12. The first cylindrical member 3 has a first surface 8 a that contacts the gear 2. The gear 2 is held in contact with the first surface 8a. It is preferable that the first surface 8 a has irregularities that mesh with the gear 2. The thickness of the first cylindrical member 3 is not uniform. Therefore, the total thickness of the first cylindrical member 3 and the second cylindrical member 4 on the front surface of the main body portion 5 changes according to the rotation of the first cylindrical member 3, and the main surface of the main body portion 5 is changed. As the angle 6 changes, the gear 2 moves up and down. It is preferable that the thickness of the first cylindrical member 3 is not uniform because the upper surface side in contact with the second cylindrical member 4 is a curved surface. Examples of the curved surface include a curved surface whose upper surface side is a sine curve when a development view of the first cylindrical member 3 is hypothesized. On the other hand, the lower surface side of the first cylindrical member 3 is preferably a flat surface along the bottom surface 11 of the base. The first surface 8 a has a curved surface similar to the curved surface on the upper surface side of the first cylindrical member 3. The first surface 8 a is provided at a certain distance from the upper surface of the first cylindrical member 3 in consideration of the diameter of the gear 2.

The second cylindrical member 4 is disposed on the first cylindrical member 3 and is fitted on the side portion 12 of the base 1. The second cylindrical member 4 is rotatable in the circumferential direction of the side portion 12. The second cylindrical member 4 has a second surface 8 b in contact with the gear 2. The second surface 8b is in contact with the upper side of the gear 2, and the gear 2 is sandwiched between the first surface 8a and the second surface 8b. The second surface 8b preferably has irregularities that mesh with the gear 2. When the first surface 8a and the second surface 8b have irregularities that mesh with the gear 2, by rotating either the first cylindrical member or the second cylindrical member, The other cylindrical member rotates in the reverse direction via the gear 2. The thickness of the second cylindrical member 4 is not uniform. It is preferable that the thickness of the second cylindrical member 4 is not uniform because the lower surface side in contact with the second cylindrical member 4 is a curved surface. Examples of the curved surface include a curved surface whose lower surface side is a sine curve when a development view of the second cylindrical member 4 is hypothesized. On the other hand, the upper surface side of the second cylindrical member 4 is a surface in contact with the main body 5 and is preferably a flat surface. The second surface 8 b has a curved surface similar to the curved surface on the lower surface side of the second cylindrical member 4. The second surface 8 b is provided at a certain distance from the lower surface of the second cylindrical member 4 in consideration of the diameter of the gear 2.
Although not particularly limited, as an example, the curved surface on the upper surface side of the first cylindrical member 3 and the curved surface on the lower surface side of the second cylindrical member 4 are preferably similar curved surfaces.

  The main body part 5 has a part smaller than the inner diameter of the side part 12 of the base 1, and a part smaller than the inner diameter of the side part 12 when arranged on the second cylindrical member 4. It is arranged inside the side part 12 of the base 1. A shaft 7 of the main body 5 is disposed at a portion smaller than the inner diameter of the side portion 12 of the base 1, and the shaft 7 is disposed inside the opening 9 of the base 1. The gear 2 is disposed outside the opening 9, and the shaft 7 and the gear 2 are connected through the opening 9 and sandwich the side 12 of the base 1.

  The present invention adjusts the angle of the main surface 6 of the main body 5 steplessly, and the main body 5 can be appropriately selected from known ones that require angle adjustment. As the main body 5, for example, the main surface 6 may be a display surface such as a liquid crystal display device, and may further have an operation surface such as a touch panel. Further, the main body 5 may be various desk equipment main bodies such as a desk phone, and the main surface 6 may be an operation section such as a button. The main surface 6 may be a reading surface such as a fingerprint or an IC card. Further, the main body 5 may be a stand for these devices, for example, a stand for a smartphone or the like.

  Next, the operation of the stepless angle adjustment mechanism of the present invention will be described with reference to FIG. FIG. 2 is a perspective view and a side view for explaining the operation of the stepless angle adjusting mechanism of the present invention. In FIG. 2, for the sake of explanation, a part of the cylindrical member or the like is not shown, and the gear 2 is visible. As shown in FIG. 2, the stepless angle adjusting mechanism of the present invention is configured such that when one of the first cylindrical member 3 and the second cylindrical member 4 is rotated, the other cylinder is rotated by the gear 2. The shape member rotates in the reverse direction in conjunction with it. The two gears 2 are movable in the vertical direction by the first cylindrical member 3 and the second cylindrical member 4. Since the thickness of each of the first cylindrical member 3 and the second cylindrical member 4 is not uniform, the thickest portions of the first cylindrical member 3 and the second cylindrical member 4 are in front of the main body 5. When they overlap, the front side of the main body 5 is lifted, and the angle of the main surface 6 from the bottom surface 11 (horizontal plane) of the base becomes the smallest (left side in FIG. 2). On the other hand, when the thinnest portions of the first cylindrical member 3 and the second cylindrical member 4 overlap each other on the front surface of the main body 5, the front side of the main body 5 is lowered, and the bottom surface of the base of the main surface 6. The angle from 11 (horizontal plane) becomes the largest (right side in FIG. 2). In the present invention, the shaft 7 of the main body 5 is connected to the gear 2 and sandwiches the opening 9 of the side portion 12 of the base, and the movement of the shaft 7 of the main body 5 is restricted. With such a configuration, the main surface 6 can be changed only in a predetermined direction, and there is an effect that the main surface 6 is restricted from tilting to the left and right or changing its direction.

DESCRIPTION OF SYMBOLS 1 Base 2 Gear 3 1st cylindrical member 4 2nd cylindrical member 5 Main-body part 6 Main surface 7 Axis 8a 1st surface 8b which contacts a gear 2nd surface 9 which contacts a gear Opening 10 Stepless angle adjustment Mechanism 11 Bottom 12 Side

Claims (5)

The main body,
Two gears connected to the shaft of the main body,
A base having a cylindrical side portion, and a pair of openings on the side portion, the axis being movable in the vertical direction;
A first cylindrical member having a first surface in contact with the gear and having a non-uniform thickness;
A second cylindrical member having a second surface in contact with the gear and having a uniform thickness;
The main body portion is smaller than the inner diameter of the side portion of the base, and has a portion having the shaft,
The first cylindrical member is externally fitted to the base;
The second cylindrical member is disposed on the first cylindrical member and is externally fitted to the base;
The main body is disposed on the second cylindrical member, and the shaft is disposed inside the opening of the base,
The two gears are arranged outside the opening of the base and connected to the shaft;
The two gears are respectively sandwiched between a first surface of the first cylindrical member and a second surface of the second cylindrical member;
A stepless angle adjustment mechanism in which the first cylindrical member and the second cylindrical member rotate in a circumferential direction of the base.   The stepless angle adjustment mechanism according to claim 1, wherein the first surface and the second surface have irregularities that mesh with the gear, respectively.   The stepless angle adjustment mechanism according to claim 1 or 2, wherein when one of the first cylindrical member and the second cylindrical member is rotated, the other is interlocked and rotated in the opposite direction.   The stepless angle adjustment mechanism according to any one of claims 1 to 3, wherein the first cylindrical member having a uniform thickness has a curved upper surface.   The stepless angle adjustment mechanism according to any one of claims 1 to 4, wherein the second cylindrical member having a uniform thickness has a curved lower surface.

Images