Door hinge with adjustable opening angle and furniture comprising the same

Abstract

The present invention relates to an opening angle adjustable door hinge and furniture including the same. A door hinge according to an embodiment of the present invention comprises: a mounting plate; a body frame; a cover disposed between the mounting plate and the body frame and rotating with respect to the mounting plate and the body frame, respectively; a lever disposed at the bottom of the cover and disposed between the mounting plate and the body frame and rotating with respect to the mounting plate and the body frame, respectively; and an angle adjustment unit that controls the angle between the mounting plate and the body frame in an open state.

Description

Technology Field

[0001] The present invention relates to an opening angle adjustable door hinge and furniture including the same. Background Technology

[0002] A door hinge is installed on a door that opens and closes in a swing-type manner. The door hinge has been developed to prevent impact and noise by absorbing the force applied when opening and closing the door. To this end, a damper with a function to prevent impact and noise is installed on the door hinge. In addition, a lever and an arm are positioned between the mounting plate and the damper, which are respectively installed on the door and the door frame or wall, to ensure that the rotation of the door hinge is efficient and to transmit the force applied to the door to the damper.

[0003] In the case of furniture with multiple storage compartments connected in parallel, opening a door in one compartment may cause it to collide with an adjacent door, potentially damaging the door or causing discomfort due to noise and vibration. Additionally, opening a door in a storage compartment located adjacent to a wall can result in the door hitting the wall, causing damage to both the furniture and the wall.

[0004] To solve this problem, conventionally, door hinges were installed separately for cases where the angle between the mounting plate and the body frame in the open state was 90 degrees or less, and for cases where it exceeded 90 degrees (generally around 105 degrees). In this case, the work was cumbersome because different types of door hinges had to be installed separately depending on the position where the door hinge was placed, and rework had to be done if a different door hinge was installed. Additionally, there was a problem of increased costs due to the storage and distribution of various types of door hinges. Prior art literature

[0005] Korean Registered Patent Publication No. 10-2781723 The problem to be solved

[0006] The present invention aims to provide a door hinge capable of controlling the rotation angle of the door hinge and furniture including the same.

[0007] In addition, the present invention can reduce the types of door hinges installed in furniture, thereby reducing costs such as storage and distribution.

[0008] In addition, the present invention can prevent rework caused by mistakes.

[0009] In addition, the present invention can prevent damage to doors, furniture, and walls. means of solving the problem

[0010] A door hinge according to an embodiment of the present invention comprises: a mounting plate; a body frame; a cover disposed between the mounting plate and the body frame and rotating with respect to the mounting plate and the body frame, respectively; a lever disposed at the bottom of the cover and disposed between the mounting plate and the body frame and rotating with respect to the mounting plate and the body frame, respectively; and an angle adjustment unit that controls the angle between the mounting plate and the body frame in an open state.

[0011] The angle adjustment unit controls the distance between the cover and the lever to control the angle between the mounting plate and the body frame.

[0012] The greater the height of the part positioned between the cover and the lever among the angle adjustment parts, the smaller the angle between the mounting plate and the body frame.

[0013] The angle adjustment unit may include a moving member, an adjustment member that controls the height of a portion positioned between the cover and the lever by the operation of the moving member, and a limiting member that contacts the lever to restrict the movement of the lever.

[0014] As the adjustment member rotates, the moving member rotates together, so that the end of the moving member can be inserted into the narrow space between the cover and the lever or move out of that position.

[0016] Furniture according to an embodiment of the present invention includes the door hinge described above. Effects of the invention

[0017] A door hinge according to an embodiment of the present invention and furniture including the same can control the rotation angle of the door hinge.

[0018] In addition, the present invention can reduce the types of door hinges installed in furniture, thereby reducing costs such as storage and distribution.

[0019] In addition, the present invention can prevent rework caused by mistakes.

[0020] In addition, the present invention can prevent damage to doors, furniture, and walls. Brief explanation of the drawing

[0021] FIG. 1 illustrates a door hinge according to an embodiment of the present invention. Figure 2 illustrates the door hinge of Figure 1, with the cover shown transparently. Figure 3 is a perspective view of the angle adjustment unit. Figure 4 is a cross-sectional view of the cover and angle adjustment part. Figure 5 is a cross-sectional view of a door hinge in a 105-degree angle-open state. Figure 6 is a cross-sectional view of a door hinge in a 90-degree angle open state. Specific details for implementing the invention

[0022] Preferred embodiments of the present invention are described below with reference to the attached drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. Furthermore, embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Accordingly, the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation, and elements indicated by the same reference numerals in the drawings are the same elements. Additionally, the same reference numerals are used throughout the drawings for parts having similar functions and operations. Furthermore, throughout the specification, the term "comprising" a component means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0025] A door hinge (100) according to an embodiment of the present invention comprises: a mounting plate (110); a body frame (120); a cover (130) disposed between the mounting plate (110) and the body frame (120) and rotates with respect to the mounting plate (110) and the body frame (120), respectively; a lever (150) disposed at the bottom of the cover (130) and disposed between the mounting plate (110) and the body frame (120) and rotates with respect to the mounting plate (110) and the body frame (120), respectively; and an angle adjustment unit (140) that controls the angle between the mounting plate (110) and the body frame (120) in an open state. One embodiment may further include a damper that absorbs shock, a damper bracket, a torsion spring, and a mounting plate (110) that is fixed to the body frame (120) and is different from the mounting plate (110).

[0027] The mounting plate (110) performs the function of fixing the door hinge (100) to a door or wall to which the door hinge (100) is attached. Referring to FIG. 1, the mounting plate (110) includes a cap with a recessed central portion and screw holes formed on both sides of the cap, and after the cap is fitted into a groove formed in the door or wall, the door hinge (100) can be fixed to the door or wall through the screw holes with screws.

[0028] Although not shown in the drawing, one embodiment may further include another mounting plate (110) that secures the body frame (120) and damper bracket and secures the door hinge (100) to a wall or door. The other mounting plate (110) also includes screw holes, and the door hinge (100) can be secured to a wall or door using screws.

[0029] The cover (130) and the body frame (120) are positioned between a mounting plate (110) fixed to one side of the furniture and another mounting plate (110) fixed to the other side of the furniture, so that the door hinge (100) can rotate.

[0030] The cover (130) is rotatably coupled to the mounting plate (110), and the body frame (120) can be fixedly coupled to another mounting plate (110). One side of the cover (130) and the mounting plate (110) can rotate around a pin that fits into a groove formed in each. The body frame (120) can wrap around a part of the damper, damper bracket, and lever (150) and be coupled to another mounting plate (110). Additionally, the other side of the cover (130) and the body frame (120) can rotate around a pin that fits into a groove formed in each.

[0031] The cover (130) may include a rectangular plate and a connecting structure formed by extending downward from one end and the other end of the plate. The connecting structure is positioned by extending downward from one side and the other side of the plate, and is positioned so as to be offset toward the one end and the other end, respectively, so that it can be connected to the mounting plate (110) and the body frame (120), respectively. Here, the directions in which the four sides of the plate are located are defined as the one end, the other end, the one side, and the other side, respectively, and the one end and the other end, and the one side and the other side are sides facing each other. In FIGS. 1, 5, and 6, the one end is in the direction opposite to the x-axis, the other end is in the x-axis direction, the one side is in the direction opposite to the y-axis, and the other side is in the y-axis direction. Additionally, the top surface is the surface exposed in the z-axis direction, and the bottom surface is the surface exposed in the direction opposite to the z-axis.

[0033] One side of the lever (150) is rotatably connected to the mounting plate (110), and the other side is rotatably connected to the body frame (120). Similar to the cover (130), the parts of the lever (150) that are rotatably connected may each form a groove, and a pin that fits into each groove may be placed therein. The lever (150) is positioned below the cover (130) and moves away from the cover (130) when closed, but moves towards the cover (130) when open.

[0034] Referring to FIGS. 5 and 6, the lever (150) is positioned below the cover (130), but the axis of rotation to which the lever (150) engages with the mounting plate (110) is positioned above and behind the axis of rotation to which the cover (130) engages with the mounting plate (110). By having such a structure, when the distance between the lever (150) and the cover (130) is wide (when the height of the angle adjustment part (140) placed in the space between the lever (150) and the cover (130) is large), the axis of rotation to which the lever (150) engages with the mounting plate (110) is positioned relatively lower, causing the front of the mounting plate (110) to be lifted upward, thereby making the angle between the mounting plate (110) and the body frame (120) smaller. Conversely, when the gap between the lever (150) and the cover (130) is narrow (when the height of the angle adjustment part (140) placed in the space between the lever (150) and the cover (130) is small), the rotation axis to which the lever (150) connects with the mounting plate (110) is positioned relatively higher, so that the front of the mounting plate (110) is not lifted upward, and thus the angle between the mounting plate (110) and the body frame (120) becomes larger.

[0035] Referring to FIGS. 5 and 6, the cover (130) and the lever (150) are spaced apart from the body frame (120) to the mounting plate (110), with the parts fixed to the body frame (120) touching each other. These parts may touch when the door hinge (100) is in an open or closed state. In the open state where the angle adjustment part (140) is absent or adjusted to a wide open state, the space between the cover (130) and the lever (150) from this part to the mounting plate (110) is formed to gradually narrow (see FIG. 5). If the angle adjustment part (140) is adjusted to a small open state to widen the space between the cover (130) and the lever (150) near the mounting plate (110), the angle between the mounting plate (110) and the body frame (120) increases (see FIG. 6).

[0036] Here, the angle between the mounting plate (110) and the body frame (120) is controlled by the angle adjustment unit (140) adjusting the space between the cover (130) and the lever (150) that is located between the abutting part (body frame (120) side area) of the space between the cover (130) and the lever (150) and the part rotatably connected to the mounting plate (110) of the space between the cover (130) and the lever (150).

[0038] The torsion spring provides elasticity when the cover (130) rotates relative to the mounting plate (110). The torsion spring may be positioned on the axis of rotation connecting the lever (150) and the body frame (120). Specifically, the torsion spring may be positioned to surround the axis of rotation of the cover (130) and the body frame (120), with one end positioned to contact the axis of rotation of the cover (130) and the mounting plate (110), and the other end positioned to contact the body frame (120). This allows for the provision of elasticity when the lever (150) and the cover (130) rotate relative to the mounting plate (110).

[0040] The damper and damper bracket perform the function of reducing impact and noise generated when the door is opened and closed. The damper may include an operating shaft connected to the lever (150) and reciprocating according to the rotation of the lever (150), a piston connected to the operating shaft, a cylinder into which the piston is inserted, and an internal chamber formed by the piston and the cylinder. The operating shaft may be connected to one end of an arm connected to the lever (150). As the mounting plate (110) rotates, the direction of the force generated changes linearly as it passes through the lever (150) and the arm, and the operating shaft is enabled to reciprocate inside and outside the cylinder by this force.

[0041] The damper bracket can be detachably coupled to the body frame (120). For example, the damper bracket may be smaller than the body frame (120) and placed inside the body frame (120). The damper bracket may be formed in a shape that encloses the damper.

[0043] The angle adjustment unit (140) controls the angle between the mounting plate (110) and the body frame (120) in the open state. FIGS. 5 and 6 illustrate a door hinge (100) in the open state. FIGS. 5 shows the case where the mounting plate (110) is opened at an angle of 105 degrees with respect to the z-axis, and FIGS. 6 shows the case where the mounting plate (110) is opened at an angle of 90 degrees with respect to the z-axis. Here, the angles are examples, and FIGS. 5 can be defined as a state of opening at a large angle, FIGS. 6 as a state of opening at a small angle. Referring to FIGS. 5 and 6, the angle adjustment unit (140) can control the angle between the mounting plate (110) and the body frame (120) by controlling the gap between the cover (130) and the lever (150). The greater the height of the portion of the angle adjustment part (140) positioned between the cover (130) and the lever (150), the smaller the angle between the mounting plate (110) and the body frame (120).

[0044] The angle adjustment unit (140) may include a moving member (141), an adjustment member (142) that controls the height of a portion positioned between the cover (130) and the lever (150) by the operation of the moving member (141), and a limiting member (143) that contacts the lever (150) and limits the movement of the lever (150).

[0045] The moving member (141) moves the position of the adjusting member (142). The user can rotate or move the adjusting member (142) by rotating or moving the moving member (141). The angle adjusting part (140) can be positioned through the cover (130) (more precisely, the plate of the cover (130) described above), in which case the cover (130) may include a through hole, and the moving member (141) may be positioned on the through hole. To allow the operator to easily rotate the moving member (141) from the outside, the moving member (141) may include a groove in the shape of a '-' or a '+', or the outer edge may be a polygon such as a hexagon. The operator can move (rotate) the moving member (141) using tools such as a screwdriver, wrench, or spanner.

[0046] In one embodiment, the outer diameter of the moving member (141) may be larger than the outer diameter of the adjusting member (142). In another embodiment, at least one side of the moving member (141) may have a portion (shape such as a projection, finger, branch, etc.) formed to protrude larger than the outer diameter of the adjusting member (142). This prevents the moving member (141) from being excessively inserted into the through hole of the cover (130), thereby allowing the angle of the mounting plate (110) and the body frame (120) to be controlled to always remain constant in an open state where the angle is controlled to be small (state of FIG. 6).

[0047] In one embodiment, the upper surface of the cover (130) may include a projection or a groove on the periphery of the through hole or on the upper portion of the inner circumference of the through hole where a screw thread is formed, and the moving member (141) may include a groove or projection corresponding to the projection or groove on the lower surface. When the moving member (141) is operated so that the adjusting member (142) and the limiting member (143) move downward (toward the lever (150)), the groove or projection of the moving member (141) comes into contact with the projection or groove of the cover (130), thereby restricting the movement (rotation) of the moving member (141). Through this, the gap between the cover (130) and the lever (150) can always be adjusted to be the same in the open state.

[0048] The adjusting member (142) adjusts the gap between the cover (130) and the lever (150). By operating the moving member (141), the height of the angle adjusting member (140) placed in the gap between the cover (130) and the lever (150) can be controlled. Referring to FIGS. 5 and 6, when the adjusting member (142) moves toward the cover (130) (FIG. 5), the limiting member (143) may be partially placed or not placed between the cover (130) and the lever (150). In this case, the lever (150) can move closer to the cover (130) in the open state, and the rotation axis connecting the lever (150) to the mounting plate (110) moves upward relative to the rotation axis of the cover (130), thereby allowing the mounting plate (110) to spread at a wider angle relative to the body frame (120). Conversely, when the adjusting member (142) moves toward the lever (150) (Fig. 6), a limiting member (143) may be placed between the cover (130) and the lever (150), or a part of the limiting member (143) and the adjusting member (142) may be placed. In this case, the lever (150) is placed relatively far from the cover (130) in the open state, and the rotation axis connecting the lever (150) to the mounting plate (110) moves relatively less upward than the rotation axis of the cover (130), so that the mounting plate (110) can be spread at a narrower angle relative to the body frame (120).

[0049] The limiting member (143) contacts the lever (150) (more precisely, the plate of the lever (150) described above) and restricts the movement of the lever (150). Additionally, the limiting member (143) can prevent the angle adjustment part (140) from deviating from a set position. Referring to FIG. 3, the limiting member (143) is positioned below the adjustment member (142) and may include a part (first part (143a)) that does not include screw threads on the side and has an outer diameter smaller than that of the adjustment member (142) so as not to interfere with the through hole of the cursor, and may include a part (second part (143b)) that is positioned below the first part (143a) and contacts the cover (130).

[0050] In one embodiment, the outer diameter of the second part (143b) may be larger than the outer diameter of the adjusting member (142) (or the inner diameter of the through hole of the cover (130). In another embodiment, at least one side of the limiting member (143) may have a part (shape such as a projection, finger, or branch) formed to protrude larger than the outer diameter of the adjusting member (142) (or the inner diameter of the through hole of the cover (130). This prevents the limiting member (143) from being inserted into the through hole of the cover (130), thereby preventing the angle adjusting part (140) from moving out of the cover (130) at a predetermined position. In addition, in one embodiment, by positioning a part of the limiting member (143) between the cover (130) and the lever (150) in an open state where the angle is controlled to be large (state of FIG. 5), the angle of the mounting plate (110) and the body frame (120) can be controlled to always be constant in an open state where the angle is controlled to be large (state of FIG. 5).

[0051] In one embodiment, the area around the through hole on the lower surface of the cover (130) may include a protrusion or a groove, and the limiting member (143) may include a groove or protrusion corresponding to the protrusion or groove in the second part (143b). When the adjusting member (142) and the limiting member (143) move upward (toward the cover (130)) by the operation of the moving member (141), the groove or protrusion of the limiting member (143) comes into contact with the protrusion or groove on the lower surface of the cover (130), thereby restricting the movement (rotation) of the moving member (141). Through this, the gap between the cover (130) and the lever (150) can always be adjusted to be the same in the open state.

[0053] Furniture according to an embodiment of the present invention includes the door hinge (100) described above. In the present invention, furniture is not particularly limited, and is not particularly limited as long as it includes a hinge. Furniture may be kitchen furniture, bathroom cabinets, wardrobes, office cabinets, living room cabinets, etc. The door hinge (100) may have a mounting plate (110) and another mounting plate (110) fixedly positioned on the door and the body of the furniture, respectively.

[0055] The present invention is not limited by the embodiments described above and the attached drawings, but is intended to be limited by the appended claims. Accordingly, various substitutions, modifications, and changes may be made by those skilled in the art within the scope of the technical concept of the present invention as described in the claims, without departing from the technical spirit of the invention, and such are also to be considered to fall within the scope of the present invention. Explanation of the symbols

[0056] 100: Door hinge, 110: Mounting plate, 120: Body frame, 130: Cover, 140: Angle adjustment part, 141: Moving member, 142: Adjusting member, 143: Limiting member, 143a: First part, 143b: Second part, 150: Lever

Claims

Claim 1 A door hinge comprising: a mounting plate; a body frame; a cover disposed between the mounting plate and the body frame and rotating with respect to the mounting plate and the body frame, respectively; a lever disposed at the bottom of the cover and disposed between the mounting plate and the body frame and rotating with respect to the mounting plate and the body frame, respectively; and an angle adjustment unit that controls the angle between the mounting plate and the body frame in an open state, wherein the angle adjustment unit controls the angle between the mounting plate and the body frame by controlling the distance between the cover and the lever, and the angle between the mounting plate and the body frame becomes smaller as the height of the portion of the angle adjustment unit disposed between the cover and the lever increases. Claim 2 A door hinge according to claim 1, wherein the angle adjustment member comprises a moving member, an adjustment member that controls the height of a portion disposed between the cover and the lever by the operation of the moving member, and a limiting member that contacts the lever and limits the movement of the lever. Claim 3 A door hinge according to paragraph 2, wherein as the adjusting member rotates, the moving member rotates together so that the end of the moving member is inserted into the narrow space between the cover and the lever or moves out of that position. Claim 4 Furniture including the door hinge of claim 1.

Images