Hinges with adjustable opening angle
The hinge with an adjustable opening angle addresses door collision issues by allowing adjustable angles between 80-85 degrees or 110 degrees, preventing damage and enabling full opening, while maintaining a simple and cost-effective design.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SHIMODAIRA HARDWARE
- Filing Date
- 2025-12-24
- Publication Date
- 2026-07-08
AI Technical Summary
Existing door panel hinges with a fixed 110-degree opening angle often cause collisions and damage when multiple doors are opened simultaneously or adjacent to walls, lacking adaptability to various usage scenarios.
A hinge with an adjustable opening angle, featuring a swing arm with an adjustment mechanism and a power plate, allowing the angle to be adjusted between 80-85 degrees or 110 degrees, with limit points and reset points for intuitive adjustment.
Prevents door collisions by locking the angle at 80-85 degrees to avoid damage and allows full opening at 110 degrees, maintaining a simple structure and low cost with minimal product modifications.
Smart Images
Figure 2026115010000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of door panel hinges, and particularly to hinges with adjustable opening angles.
Background Art
[0002] Currently, the opening angle of the door panel of the hinges circulating in the market is generally around 110 degrees. There are the following problems with this opening angle.
[0003] (1) When the door of the cabinet is adjacent to the wall, if the door panel opens more than 90 degrees, it will collide with the panel door wall, resulting in damage, peeling of the paint, etc.
[0004] (2) When two cabinets are arranged adjacent to each other, if the door panel of the left cabinet is opened and the door panel of the right cabinet is also opened at the same time, the door panels on both the left and right sides will collide with each other, and the door panel will be damaged.
Prior Art Documents
Patent Documents
[0005]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0006] An object of the present invention is to provide a hinge with an adjustable opening angle, which has a simple structure, can switch the opening angle of the hinge within a range less than 90 degrees or greater than 90 degrees, and can adapt to various usage situations.
Means for Solving the Problems
[0007] To achieve the above objective, the present invention provides a hinge with an adjustable opening angle. This includes a hinge cup, a swing arm, an arm body, and a power plate, wherein one end of the swing arm is rotatably connected to the hinge cup via a first rotation axis, the other end of the swing arm is rotatably connected to the arm body via a third rotation axis, one end of the power plate is rotatably connected to the hinge cup via a second rotation axis, and the other end of the power plate is rotatably connected to the arm body via a fourth rotation axis. The swing arm is provided with an adjustment mechanism for adjusting the distance between the swing arm and the power plate.
[0008] As a further improvement of the present invention, the adjustment structure is rotatably fitted to the swing arm, and a slope is provided at one end of the adjustment structure, with an acute angle between the slope and the rotation axis of the adjustment structure.
[0009] As a further improvement of the present invention, a first plane and a projection structure are further provided at one end of the adjustment structure, and the first plane, the inclined plane, and the projection structure are arranged in order, with the first plane and the projection structure located on opposite sides of the rotation axis of the adjustment structure.
[0010] As a further improvement of the present invention, the adjustment structure includes a cylindrical portion and a disc portion arranged sequentially along its axial direction, the first plane, the inclined surface, and the projection structure are all provided at the end of the disc portion away from the cylindrical portion, the disc portion is located inside the swingarm, one end of the cylindrical portion extends through the swingarm to the outside, the cylindrical portion has an operating part, and has a structure to prevent it from coming out from above or below the swingarm.
[0011] As a further improvement of the present invention, the swingarm is provided with limit points and reset points, the limit points and reset points are arranged around the outside of the adjustment structure, and the adjustment structure is provided with directional markings.
[0012] As a further improvement of the present invention, a projection is provided in the center of the power plate, and the projection contacts the end of the adjustment structure that has a slanted surface.
[0013] As a further improvement of the present invention, the adjustment structure has two positions on the swing arm where rotation stops, and the opening angle is switched at the position where the adjustment structure stops. [Effects of the Invention]
[0014] The advantages of the hinge with an adjustable opening angle according to the present invention compared to the prior art are as follows:
[0015] 1. When the adjustment mechanism is adjusted to the negative angle side during use, that is, the higher side of the bottom of the adjustment mechanism rotates to the hinge's power plate and presses against the power plate, locking the hinge's opening angle. At this point, the opening angle is 80-85 degrees, preventing damage from collision when opening the door panel. When the adjustment mechanism is adjusted to the positive angle side, the higher side of the bottom of the adjustment mechanism separates from the hinge's power plate, and the hinge cup returns to its original opening angle, i.e., 110 degrees, thereby enabling the door panel to open completely. The hinge has a simple structure, does not require the special manufacture of adjustment parts or hinges, requires fewer changes to the product structure, is cost-effective, and can be easily adapted to the user's cabinet usage.
[0016] 2. Limit points and reset points are provided on the outside of the swingarm, and when the adjustment structure is rotated, the user can intuitively determine whether the adjustment structure has rotated to the predetermined position by pointing the direction indicator mark on the adjustment structure towards either the limit point or the reset point.
[0017] The present invention will become clearer with the following description and drawings. These drawings are for interpreting embodiments of the present invention. [Brief explanation of the drawing]
[0018] [Figure 1] This is a perspective view of a hinge with an adjustable opening angle. [Figure 2] This is a rear view of a hinge with an adjustable opening angle. [Figure 3]It is a front cross-sectional view of a hinge with an adjustable opening angle. [Figure 4] It is a cross-sectional view of the adjustment structure. [Figure 5] It is a cross-sectional view of the power plate. [Figure 6] It is Engagement state 1 between the adjustment structure and the power plate. [Figure 7] It is Engagement state 2 between the adjustment structure and the power plate. [Figure 8] It is a diagram showing the position of the limit point. [Figure 9] It is a perspective view of the adjustment structure. [Figure 10] It is a perspective view of the adjustment structure. [Figure 11] It is a perspective view of the engagement state between the swing arm and the adjustment structure. [Figure 12] It is a plan view of the engagement state between the swing arm and the adjustment structure. [Figure 13] It is Engagement state 1 between the adjustment structure and the power plate. [Figure 14] It is Engagement state 2 between the adjustment structure and the power plate.
Embodiments for Carrying Out the Invention
[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings. To more clearly explain the embodiments of the present invention, the drawings necessary for the description of the embodiments will be briefly introduced below. Needless to say, the drawings described below are only a part of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without special effort.
[0020] <Embodiment> A specific embodiment of the present invention is shown in Figures 1 to 9, and is a hinge with an adjustable opening angle, comprising a hinge cup 1, a swing arm 2, an arm body 3, and a power plate 6. One end of the swing arm 2 is rotatably connected to the hinge cup 1 via a first rotation shaft 11, and the other end 7 of the swing arm 2 is rotatably connected to the arm body 3 via a third rotation shaft 21. One end of the power plate 6 is rotatably connected to the hinge cup 1 via a second rotation shaft 12, and the other end of the power plate 6 is rotatably connected to the arm body 3 via a fourth rotation shaft 31. The swing arm 2 is provided with an adjustment structure 4 for adjusting the distance between the swing arm 2 and the power plate 6.
[0021] The adjustment structure 4 is rotatably fitted onto the swing arm 2, and a slope 43 is provided at one end of the adjustment structure 4. The slope 43 and the rotation axis of the adjustment structure 4 form an acute angle, as shown in Figure 4.
[0022] In this embodiment, a projection 61 is provided in the center of the power plate 6, and the projection 61 contacts the end of the adjustment structure 4 where the inclined surface 43 is provided.
[0023] A first plane 41 and a projection structure 42 are further provided at one end of the adjustment structure 4. The first plane 41, the inclined surface 43, and the projection structure 42 are arranged in order, and the first plane 41 and the projection structure 42 are located on opposite sides of the rotation axis of the adjustment structure 4. The projection structure 42 is higher than the first plane 41.
[0024] The adjustment structure 4 includes a cylindrical portion 44 and a disc portion 45 arranged sequentially along its axial direction. The first plane 41, the inclined surface 43, and the projection structure 42 are all provided at the end of the disc portion 45 away from the cylindrical portion 44. A through hole is provided in the center of the swing arm 2, and the disc portion 45 is located inside the through hole of the swing arm 2. The cross-sectional contour of the disc portion 45 is larger than the through hole of the swing arm 2. The adjustment structure 4 is attached to the swing arm 2, and one end of the cylindrical portion 44 extends from the through hole of the swing arm 2 through the swing arm 2 to the outside. This extension is provided with a circumferential upper edge 48 to prevent the adjustment structure 4 from coming off the swing arm 2. This circumferential upper edge 48 is pressed against the upper surface of the operating portion 46 along the axial direction to prevent it from coming off. The operating portion 46 is provided on the cylindrical portion 44. In this embodiment, a cross groove corresponding to a screwdriver is used for the operating portion 46 of the cylindrical portion 44. One end of the cylindrical portion 44 is positioned flush with the swing arm 2, allowing the swing arm 2 to be housed inside the hinge cup 1 without interference.
[0025] The swingarm 2 is provided with a limit point 22 and a reset point 23, which are arranged around the outside of the adjustment structure 4. As shown in Figures 8 and 9, a directional indicator mark 47 is provided at the top of the cylindrical portion 44 of the adjustment structure 4.
[0026] The hinge further includes a hinge base 5. When installing the hinge, first attach the hinge cup to the door body with screws, then attach the hinge base 5 to the inner wall of the cabinet with screws, and then engage the bottom of the arm body 3 with the hinge base 5 (this is the conventional method of installing hinges), thereby completing the installation of the hinge.
[0027] When it is necessary to adjust the maximum opening angle of the cabinet door panel, rotating the adjustment structure 4 until the direction indicator mark 47 faces the reset point 23 causes the high projection structure 42 at the bottom of the adjustment structure 4 to rotate towards the hinge's power plate 6, pressing against the projection 61 of the power plate and locking the hinge's opening angle. As shown in Figure 6, at this point the opening angle is 80-85 degrees, preventing damage from collision when opening the door panel. When the adjustment structure 4 is rotated until the direction indicator mark 47 faces the limit point 22, the high projection structure 42 at the bottom of the adjustment structure 4 moves away from the projection 61 of the hinge's power plate 6, and at this point the first plane 41 is positioned adjacent to the projection 61 of the power plate 6 (Figures 3 and 7). As shown in Figures 3 and 7, the opening angle of the hinge cup 1 of the hinge is 110 degrees, resulting in the effect of fully opening the door panel. In Figure 6, a space is shown between the projection structure 42 and the projection 61 to clarify their engagement relationship.
[0028] Figures 10 to 12 show an adjustment structure 4-1 and a swing arm 2-1 according to another embodiment, and Figures 13 and 14 show cross-sectional views of the engagement state between the adjustment structure 4-1 and the power plate 6 in this embodiment. When the adjustment structure 4-1 shown in Figure 10 is used instead of the adjustment structure 4 shown in Figure 4, when the adjustment structure 4-1 is incorporated into the swing arm 2-1 shown in Figure 11, a structure that limits the angle of rotation is formed. Similar to the adjustment structure 4, the adjustment structure 4-1 is provided with a cylindrical portion 44-1 and a disc portion 45-1, and a first plane 41-1 and a projection structure 42-1 are formed at the bottom of the disc portion 45-1. Similar to the adjustment structure 4, a circumferential upper edge portion 48-1 is provided at one end of the cylindrical portion 44-1 to prevent the adjustment structure 4-1 from coming off the swing arm 2-1. Furthermore, a square bar 49 is provided that extends outward from the first plane 41-1 side of the disc portion 45-1. In this structure, the rotation angle of the adjustment structure 4-1 can be controlled by the square bar 49 of the adjustment structure 4-1 contacting the limiting stops 51 and 52 on the swing arm 2-1 shown in Figure 11. As shown in Figures 13 and 14, by rotating the adjustment structure 4-1 relative to the swing arm 2-1 and hitting either of the two limiting stops 51 and 52, the adjustable position for the opening angle can be determined with simpler operation. In addition, the adjustment structure 4-1 is marked with a position indicator 50, and the adjustable position for the opening angle can be clearly confirmed by aligning this marking position 50 with either the marking symbol 53 (110 degrees) or the marking symbol 54 (85 degrees) marked on the swing arm 2-1, as illustrated in Figure 12. In Figure 13, as in Figure 6, a space is left between the projection structure 42 and the projection 61 to clearly show their engagement relationship.
[0029] This hinge has a simple structure, does not require the special manufacture of adjustment parts or hinges, requires minimal changes to the product structure, has low manufacturing costs, and can be easily adapted to the user's cabinet usage.
[0030] Although the present invention has been described above using optimal embodiments, the present invention is not limited to the embodiments disclosed above, and naturally includes various modifications and equivalent combinations based on the essence of the present invention. [Explanation of Symbols]
[0031] 1 Hinge Cup 2, 2-1 Swingarm 3. Arm body 4, 4-1 Adjustment structure 5. Hinge base 6 Power Plate 7. The other end of the swingarm 11. First axis of rotation 12. Second rotation axis 21 Third rotation axis 22 limit points 23 Reset point 31. Fourth rotation axis 41 1st plane 42, 42-1 Protrusion structure 43 Slope 44, 44-1 Cylindrical section 45, 45-1 Disc section 46 Control section 47 Direction indicator mark 48, 48-1 Upper edge of the circumference 49 Square bar 50 position display 51, 52 Restrictions stopped 53, 54 Display symbols 61 Protrusion
Claims
1. A hinge with an adjustable opening angle, comprising a hinge cup, a swing arm, an arm body, and a power plate, wherein one end of the swing arm is rotatably connected to the hinge cup via a first rotation axis, the other end of the swing arm is rotatably connected to the arm body via a third rotation axis, one end of the power plate is rotatably connected to the hinge cup via a second rotation axis, the other end of the power plate is rotatably connected to the arm body via a fourth rotation axis, and the swing arm is provided with an adjustment structure for adjusting the distance between the swing arm and the power plate.
2. The hinge with an adjustable opening angle according to claim 1, characterized in that the adjustment structure is rotatably fitted to the swing arm, a slope is provided at one end of the adjustment structure, and the slope and the rotation axis of the adjustment structure form an acute angle.
3. The hinge with an adjustable opening angle according to claim 2, characterized in that a first plane and a projection structure are further provided at one end of the adjustment structure, the first plane, the inclined plane, and the projection structure are arranged in order, and the first plane and the projection structure are located on opposite sides of the rotation axis of the adjustment structure.
4. The adjustment structure includes a cylindrical portion and a disc portion arranged sequentially along its axial direction, the first plane, the inclined surface, and the projection structure are all provided at the end of the disc portion away from the cylindrical portion, the disc portion is located inside the swing arm, one end of the cylindrical portion extends through the swing arm to the outside, an operating portion is provided on the cylindrical portion, and the structure is designed to prevent it from coming out from above or below the swing arm, as described in claim 3, for an adjustable opening angle hinge.
5. The hinge with an adjustable opening angle according to claim 2, characterized in that the swing arm is provided with a limit point and a reset point, the limit point and the reset point are arranged around the outside of the adjustment structure, and the adjustment structure is provided with a direction indicator mark.
6. A hinge with an adjustable opening angle according to any one of claims 2 to 5, characterized in that a projection is provided in the center of the power plate, and the projection contacts the end of the adjustment structure that is provided with a slope.
7. The hinge with an adjustable opening angle according to any one of claims 2 to 4, characterized in that the adjustment structure has two positions on the swing arm where rotation stops, and the opening angle switches at the position where the adjustment structure stops.
8. The hinge with an adjustable opening angle according to claim 6, characterized in that the adjustment structure has two positions on the swing arm where rotation stops, and the opening angle switches at the position where the adjustment structure stops.