JPH0431969Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a hinge that is attached to the upper and lower sides of a door to attach and support the door so that the door can be opened and closed. The present invention relates to a hinge equipped with a smooth stopper that limits the range of rotation by overlapping plates and rotatably connecting the centers of their overlap with pins.

Generally, this type of hinge is used to attach and support vanity doors such as mirrored doors that are attached to the front of a storage shelf that stores washroom or bathtub equipment so as to hide the storage shelf so that it can be opened and closed, and also to open and close the door. Sometimes it is used to mount the door in such a way as to regulate the opening angle of the door so that the door does not hit the certification equipment etc. that are protruding in the opening direction.For example, it is used to mount the door directly on a wall. Used as a hinge to mount and support the vanity door of a unitized vanity mirror so that it can be opened and closed, or to mount and support one or two divided mirrors like a bathroom vanity so that it can be opened and closed as a door with a mirror. .

<Prior art> Conventionally, this type of hinge has a pair of mounting plates formed in the shape of a strip, as shown in FIGS. 6 and 7.
On one of a ₁ ′ and a ₂ ′ (hereinafter referred to as the movable plate), a superposition auxiliary piece 2′ at one end in the length direction is formed by folding the plate into steps according to the plate thickness, and a superposition piece 3′ having a substantially disk shape in plan is attached. are integrally extended, and a stopper portion 20 bent into a protrusion is provided at an arbitrary location on the outer periphery of the overlapping piece portion 3'.
, and the other mounting plate a ₂ ′ (hereinafter referred to as the fixed plate) is provided with the movable plate.
Polymerized receiving piece part 4' that polymerizes and connects the polymerized piece part 3' of a _1'
was formed into a planar substantially disk shape, and the overlapping center of the overlapping receiving piece 4' and the overlapping piece 3' was pivotally connected by a pin _a3 ' to constitute the hinge body A'.

However, the conventional hinge body A′ is a movable plate.
The protruding stopper portion 20 provided on the outer periphery of the overlapping piece portion 3' of _a1 ' abuts one long side edge of the fixed plate _a2 ', thereby causing the movable plate _a1 ' to move relative to the fixed plate _a2 '. It was designed to regulate the rotation range L', that is, the opening angle of the door _b1 .

However, since the stopper part 20 that regulates the rotation range L' of the movable plate _a1 ' with respect to the fixed plate _a2 ' has a stopper structure formed in a protruding shape, the fixed plate _a2 in the disclosure of the door _b1 The impact force when the stopper part 20 hits and locks against one side edge of the long side becomes a concentrated load on the bent part of the stopper part 20, and is applied perpendicularly to the bending and protruding direction. There was a risk that the strength of the bent portion would deteriorate and the stopper portion 20 would be bent.

A pivot hinge with a stop disclosed in Japanese Utility Model Application No. 49-127674 is known as this type of hinge. However, this hinge has a locking pawl 5 protruding from the arcuate upper surface of the shaft attachment part 3 (overlapping piece part) with an arcuate tip provided integrally on one side of the metal plate body 1 (fixed plate). The above-mentioned engagement is carried out along the arcuate outer periphery of the tip of the shaft attachment part 8 which is rotatably overlappingly connected to the shaft attachment part by a pin 6 which is integrally provided on one side of the metal plate body 7 (movable plate) in correspondence with the said shaft attachment part. A notch 14 is provided in which the retaining pawl engages and rotates, and steps 12 and 1 on both sides of this notch are provided.
Since the stopper structure has a stopper structure that regulates the rotation range L' of the metal plate 7 relative to the metal plate 1 by the locking claws coming into contact with the metal plate 3, the locking claws come into contact with the steps on both sides of the recessed part. If a large impact force is applied to the locking claw during locking, the locking claw is more likely to be deformed and damaged than the protruding base. In addition, the locking claw is attached to the metal plate 1
Since it is necessary to install it perpendicularly to the arcuate upper surface of the shaft attachment part, it is necessary to install it integrally by cutting, or
Alternatively, the claw-like shape must be formed separately from the metal plate and then attached by welding or the like, which is cumbersome to manufacture.

<Problem to be solved by the invention> The present invention has been made in view of the above-mentioned conventional circumstances, and the technical problem to be solved is to provide a pair of mounting plates that are rotatably overlappingly connected by a pin. The stopper structure regulates the rotation range of both plates in the width direction (plate surface direction), increasing the strength against large impact forces and at the same time distributing and alleviating the load of the impact forces. To provide a hinge that can be easily manufactured by die cutting.

<Means for Solving the Problems> The technical means taken by the present invention to solve the above problems is to reduce the thickness of one mounting plate near one end in the length direction, which is formed into a strip shape of a predetermined length. It is bent into a step-like shape, and one end portion with the bent portion as a boundary is used as a superposition auxiliary piece, and a planar substantially disk-shaped superposition piece is integrally extended to one corner of the superposition auxiliary piece. , on one corner side of one end in the length direction of the other mounting plate, there is integrally extended an overlapping receiving piece portion having a planar substantially disk shape that is overlappingly connected to the lower side of the overlapping piece portion, and the overlapping receiving piece A stopper piece protruding in a planar substantially arc shape is integrally provided on the outer periphery of the overlapping receiving side from an arbitrary location on the outer periphery of the overlapping receiving side toward one long side edge of the plate, and the stopper piece The fitting between the protruding end surface of the mounting plate and the side edge surface of the bent portion on one long side edge of the mounting plate is defined as the range of rotation of both mounting plates.

<Function> According to the above-mentioned technical means of the present invention, the overlapping auxiliary piece portion, which is formed by bending the sheet thickness stepwise at one end portion in the longitudinal direction, has a substantially disk-shaped planar shape extending on one corner side. On the lower side of the overlapping piece provided, a stopper piece extending in a planar substantially disk shape from one corner side of one end in the length direction and protruding in a planar substantially arc shape on the outer periphery of the stopper piece is installed on the outer periphery of the stopper piece. The pair of mounting plates can be attached in the circumferential direction of the overlapping receiving pieces by overlapping the overlapping receiving pieces that extend from the point toward one side edge of the long side of the plate and connecting the overlapping center with a pin. It is freely rotatable within the range where the protruding end surface of the stopper piece that protrudes into contact with the side edge surface of the bent part on one long side edge of the plate, which is bent into steps corresponding to the thickness of the plate so as to contact this protruding end surface. becomes.

<Example> An example of the implementation of the present invention will be described based on the drawings. The hinge body A includes a pair of mounting plates a ₁ and a ₂ ,
It consists of _a pin A 3 that connects the centers of overlap of the mounting plates a ₁ and a ₂ stacked together, and the pin A ₃ connects the centers of overlap of the pair of mounting plates a ₁ and a ₂ by pivoting. Both mounting plates a ₁ and a ₂ are rotatably connected in an overlapping manner, and one of the mounting plates a ₁ (hereinafter referred to as the movable plate) is connected to the door, and in the drawing, to the unitized makeup mirror body B. The makeup mirror body B is installed by attaching them to the top and bottom sides of the makeup door b ₁ , respectively, and attaching the other mounting plate a ₂ (hereinafter referred to as the fixing plate) to the top and bottom sides of the body part b ₁ of the makeup mirror body B, respectively. A decorative door _b1 is attached and supported so as to be openable and closable with respect to an opening of a storage shelf D recessed in a wall surface C.

Movable plate a ₁ and fixed plate a ₂ are decorative doors b ₁
It is formed into a strip of a predetermined length with a plate width slightly narrower than the top and bottom widths of the top and bottom sides of the main body part _b2 , and the plate thickness is divided into steps in the width direction near one end in the length direction of the movable plate _a1 . One end portion of the folded portion 1 with the bent portion 1 as a boundary is used as a superposition auxiliary piece portion 2, and a planar substantially disk-shaped superposition piece portion 3 is integrally extended on one corner side of the superposition auxiliary piece portion 2. Set up Overlapping piece part 3 is a fixed plate
It is for overlapping with the later-described overlapping receiving piece part 4 of _A2 and connecting the pin _A3 through the central part of the overlapping receiving piece part 4, and a part of its outer periphery is movable. It is provided on one side of the corner of the superposition auxiliary piece part 2 so as to be as close as possible to the bent part 1 on one long side edge of the plate _a1 . In the figure, reference numeral 5 denotes a mounting hole drilled in the mounting portion 6 of the movable plate _a1 .

On the other hand, the fixing plate a ₂ has an overlapping receiving piece 4 integrally extending from one corner of one end in the longitudinal direction and having a planar substantially disk shape to be overlappingly connected to the lower side of the overlapping piece 3. The circumference of the outer periphery of the overlapping receiving piece 4 is moved from an arbitrary point on the outer periphery of the receiving piece 4 toward one long side edge of the plate, more specifically, toward one long side edge of the mounting part 8 where the mounting hole 7 is drilled. A stopper piece portion 9 that projects upward in a substantially circular arc shape is integrally provided.

The stopper piece part 9 defines the rotation range L of the movable plate _A1 that rotates the pin _A3 relative to the fixed plate _A2 , and the decorative door _B1 is mounted and supported by the movable plate _A1 . This is a movable device that locks and maintains the opening angle of pin _A3 at a constant angle. The arcuate distance from the side edge surface of the bent portion 1 at one long side edge of the movable plate a ₁ that rotates around the fulcrum is the rotation range L of the movable plate a ₁ . That is, the mounting _portion is formed in a substantially arc shape in plan so that the outer circumferential diameter of the overlapping receiving piece 4 is formed into a large diameter shape from an arbitrary point on the outer periphery of the overlapping receiving piece 4 where the opening angle of the decorative door b1 is determined. A surface extending toward one long side edge of 8 and projecting on the circumference of the outer periphery is defined as a projecting end surface 9a (hereinafter referred to as a locking surface).

Note that the protruding angle of the locking surface 9a is larger than that of the overlapping receiving piece 4.
is positioned on a line extending from the center of the movable plate _a1 so that the side edge surface of the bent portion 1 on one long side edge of the movable plate a1 comes into surface contact.

According to the present embodiment configured as described above, the stopper piece portion is integrally provided on the outer periphery circumference toward one side edge of the long side of the mounting portion 8 in a continuous manner in a planar substantially arc shape. On the overlapping receiving piece 4 of the fixing plate a ₂ having the overlapping receiving piece 4 of the fixing plate a ₂ having 9,
A locking surface 9 ₂ protruding in the circumferential direction of the stopper piece 9
Bent part 1 bent in steps according to the thickness of the plate so as to touch the
The overlapping pieces ₃ of the movable plate A1 provided on one corner of the auxiliary overlapping piece 2 are superimposed on each other, and their overlapping centers are pivoted and connected with pin _A3 to form the movable plates.
Hinge body _A where the arc distance until the side edge surface of the bent part 1 of a ₁ touches the locking surface 9 ₂ of the stopper piece 9 of the fixed plate a 2 is the rotation range L of the movable plate a ₁
(see Figure 1), and adjust the opening angle of the makeup door b ₁ to prevent the door b ₁ from colliding with the identification device E etc. attached to the main body part b ₂ of the makeup mirror body B. (see Fig. 5) and the stopper piece 9
on the outer circumference of the overlapping receiving piece part 4 in a planar substantially arc shape over one long side edge of the mounting part 8 so that the outer peripheral edge diameter of the overlapping receiving piece part 4 is formed into a large diameter shape. By protruding in a planar manner, the stopper piece 9 can be formed large in the circumferential direction, and the movable plate a ₁
The plate a ₂ is designed to strengthen the strength against the impact force generated when the
A stopper structure that receives and regulates the rotation range L of the movable plate _A1 in the width direction (plate surface direction) of the fixed plate _A2 , which distributes and relieves the load of the impact force across the entire width of the plate. . By adopting such a stopper structure, the fixed plate a2 having the stopper piece part 9 protruded on the outer circumferential edge of the movable plate _a1 and the overlapping receiving piece part ₄ can be formed by die-cutting process such as pressing. The hinge body A can be manufactured easily by processing.

In the above embodiment, the mounting plate a1 on the side with the overlapping piece part 3 integrally provided at one end is a movable plate that is attached to the top and bottom sides of _the makeup door _b1 of the makeup mirror body B, and the overlapping receiving piece part 4 and the stopper piece part 9 are integrally provided at one end, the mounting plate _a2 is a fixed plate attached to the upper and lower sides of the main body part _b2 of the makeup mirror main body B, but the overlapping piece part 3 The mounting plate A ₁ on the side with the overlapping receiving piece 4 and the stopper piece 9 is used as a movable plate and is attached to the top and bottom sides of the main body part _{B 2} as a fixed plate _. Of course, it is also possible to attach it to the top and bottom sides of the screen.

<Effects of the invention> As described above, the hinge of the present invention connects the overlapping piece of one mounting plate to the underside of the overlapping piece of the other mounting plate from an arbitrary point on the outer periphery of the overlapping piece of the other mounting plate. A stopper side protruding from the outer periphery of the overlapping piece part in a planar substantially arc shape toward one side edge of the long side of the plate where the parts are integrally connected is integrally extended on the outer periphery circumference of the overlapping receiving piece part. Then, the rotation range L of the integral mounting plate is defined as the area between the protruding end face of the stopper piece and the side edge of the bent part on one long side of the mounting plate that abuts the end face. It has an effect.

A stopper piece that regulates the rotation range L of the pair of mounting plates is provided to protrude planarly on the outer circumference of the overlapping receiving piece so as to make the outer circumferential diameter of the overlapping receiving piece large. Therefore, the stopper piece can be formed large in the circumferential range extending from an arbitrary location on the outer periphery of the overlapping piece to one long side edge of the plate to which the overlapping receiving piece is integrally provided. Therefore, when the door is opened, the strength against the impact force of the long side edge of the plate that is folded into steps corresponding to the thickness of the plate and the impact force that comes into contact with it is enhanced, and the impact force is transferred in the direction of the plate edge (direction of the plate surface). Since the load of the impact force can be distributed and received over the entire plate, there is no damage caused by the concentrated impact force as in the past, and it has a strong stopper structure that lasts for a long time. The hinge has excellent durability to securely maintain the opening angle of the door, and the hinge can be manufactured by simply processing a pair of mounting plates using a die-cutting process such as a press.

[Brief explanation of drawings]

Figures 1 to 5 show examples of the hinge of the present invention; Figure 1 is a plan view, Figure 2 is a front view, Figure 3 is an enlarged perspective view, and Figure 4 is a unitized makeup mirror. A front view showing the state in which the decorative door of the main body and the upper and lower sides of the main body are respectively attached, FIG. 5 is a plan view of the same, FIGS. 6 and 7 show conventional examples, FIG. The figure is a perspective view. In the diagram, A...Hinge body, _a1 ...Mounting plate (movable plate), _a2 ...Mounting plate (fixed plate), _a3 ...pin, 1...bending part, 2...
Polymerization auxiliary side portion, 3... Polymerization piece portion, 4... Polymerization receiving piece portion, 9... Stopper piece portion, 9 ₂ ... Projection end surface (locking surface), L... Rotation range).

Claims (1)

[Scope of utility model registration request] In a hinge in which the hinge body is composed of a pair of mounting plates and a pin that rotatably connects the center of overlap of the overlapping mounting plates, the pair of mounting plates are shaped like strips of a predetermined length. The vicinity of one end in the length direction of one of the mounting plates is bent into a stepped shape corresponding to the thickness of the plate, and the one end portion with the bent portion as a boundary is used as an auxiliary overlapping piece portion, and the auxiliary overlapping piece portion is A generally disk-shaped overlapping piece in plan is integrally extended on one corner side of the mounting plate, and a roughly flat planar overlapping piece portion overlappingly connected to the lower side of the overlapping piece is provided on one side of the corner of one end in the length direction of the other mounting plate. A disk-shaped overlapping receiving piece is integrally extended, and a flat surface is formed in the circumferential shape of the outer periphery of the overlapping receiving piece from an arbitrary point on the outer periphery of the overlapping receiving piece toward one long side edge of the plate. A stopper piece protruding in an approximately arc shape is integrally extended, and a portion between the protruding end surface of the picture stopper piece and the side edge surface of the bent portion on one long side edge of the mounting plate is provided. A hinge characterized by a rotation range.