JPS5912369Y2 - hinge - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hinge, which is used, for example, when attaching a door to furniture.

Conventionally, there are various types of hinges, but
An example of a door that can be moved slightly forward and opened wide is a structure in which a cup body that is fixed to the door is rotatably attached to one end of the main body frame that is fixed to the furniture side via a movable arm. There is something.

In the case of this structure, the cup body to which the door is attached is attached to the body frame so that the cup body can smoothly rotate relative to the main body frame, and the door can be reliably closed and supported relative to the furniture. It is necessary to be able to attach it to one end.

Therefore, before this type of product is put on the market, the cup body is repeatedly tested for opening and closing.
There is a risk that the cup body may collide with the movable arm, causing breakage or damage to the cup body, and this tendency is particularly strong when the cup body is made of composite or resin.

The present invention has been developed in view of these points, and includes a cup body made of resin made of resin with an accommodation recess for accommodating the movable arm, and a notch formed in the bottom plate of this accommodation recess. By imparting cushioning properties to the bottom plate through these cuts, the present invention provides a hinge that can prevent the bottom plate of the housing recess from being damaged or broken due to impact on the movable arm.

Next, one embodiment of the present invention will be described based on the accompanying drawings.

Reference numeral 1 denotes a main body frame, and the main body frame 1 has a U-shaped cross section by a substrate 2 and side plates 3 integrally formed opposite to the lower portions of both widthwise ends of the substrate 2.

In addition, a rectangular locking hole 4 is bored at one end of the substrate 2 on both sides in the width direction, and an intermediate portion of the movable arm 6 is rotated on a support shaft 5 horizontally suspended between the opposing side plates 3. Can be installed freely.

This movable arm 6 has a pair of mounting pieces 8 protruding from one end of an engagement plate 7 facing each other, and a pair of cam plates 9 facing and integrally protruding from the other end of this engagement plate 7. Further, a cam 10 having a large curvature and an arc shape is formed on the outer edge of the pair of cam plates 9, and the body frame 1 is secured to the upper end of the pair of cam plates 9. An engaging protrusion 11 that engages and disengages from the hole 4 is formed continuously from the cam 10.

Next, a cup body 12 is rotatably attached to the pair of attachment pieces 8 of the movable arm 6 via a support shaft 13, and a plurality of overlapping interlocking elements formed in a substantially dogleg shape are attached to the cup body 12. One end of the arm 14 is rotatably attached via a support shaft 15, and the other end of this interlocking arm 14 is rotatably attached via a horizontal shaft 16 between the side plates 3 at one end of the main body frame 1. installed.

Next, a screw hole 17 is formed in the intermediate portion of the substrate 2 of the main body frame 1, and an adjustment screw 18 having a locking portion 18a for attaching and adjusting a fixing fitting (not shown) to the screw hole 17 can be freely adjusted forward and backward. At the same time, the base end of a leaf spring 20 is fitted and supported on the outer periphery of the boss 19 of this screw hole 17, and a roller 22 is rotated on both ends of a support shaft 21 attached to the tip of this leaf spring 20. The rollers 22 at both ends are elastically pressed into engagement with the cams 10 of the pair of cam plates 9, and the movable arm 6 is energized by the rollers 22 at both ends.

A midway portion of this leaf spring 20 is supported from below by a guide horizontal shaft 23 that is horizontally suspended between the side plates 3 on both sides.

Thus, this leaf spring 20 is made by bending and overlapping band-shaped spring plates at the middle part, forming a mounting hole in this new bent part into which the boss 19 is fitted, and one of the overlapping spring plates 20
a, that is, the inner spring plate 20a located on the substrate 2 side of the main frame 1 winds and supports a spindle 21 having a roller 22 at the tip thereof, and the tip of the outer spring plate 20b serves as a spindle. 21 through one spring plate 20a.

Next, the cup body 12 has a cylindrical embedded body 24 made of synthetic resin, as shown in FIGS. 5 to 7, and the movable arm 6 is accommodated in this embedded body 24. A rectangular accommodation recess 25 is formed, a bottom plate 26 serving as a covering is integrally formed at the bottom of the accommodation recess 25, and a cutout recess 27 is formed on one side of the bottom plate 26.

Further, cuts 28 are formed in parallel on both sides of the notch recess 27 of the bottom plate 26 from the opposing side edges to the other side, and the cuts 28 allow the bottom plate 26 to have a free end on the notch recess 27 side to buffer internal pressure. It is now in a movable state.

Further, a thick protrusion 29 is formed on the inner peripheral edge of the bottom plate 26, and a plurality of thick protrusions 29 are formed on the opposite side of the notch recess 27 to lock one end edge 30 of the base plate 2 of the main body frame 1. A stopper 31 is provided protrudingly.

Also, on one side of the buried body 24, that is, the notch recess 2
A mounting recess 32 into which one end of the movable arm 6 is inserted and a mounting recess 33 into which one end of the interlocking arm 14 is inserted are oval-shaped in the opening edge of the accommodation recess 25 on the 7 side, and this buried body 24 Mounting holes 34 on the other side
．． A flange 35 having a diameter is integrally molded.

One end of the movable arm 6 is inserted into the mounting recess 32, and the pair of mounting pieces 8 of the movable arm 6 are rotatably supported by the support shaft 13 inserted through the mounting hole 36 of the buried body 24. , one end of the interlocking arm 14 is inserted into the mounting recess 33, and the support shaft 1 inserted through the mounting hole 37 is inserted into the mounting recess 33.
It is rotatably supported by 5.

In the figure, reference numeral 38 indicates a fixing screw, and reference numeral 39 indicates a retaining protrusion bulged from the side plates 3 on both sides.

In the structure constructed in this way, Figs. 3 and 4
The figure shows the state in which the cup body 12 is rotated clockwise from the main body frame 1 to open it, but in order to close it, when the cup body 12 is rotated counterclockwise in the figure, the interlocking arm 14 is rotated clockwise about the horizontal shaft 16, and the cup body 12 is rotated by a predetermined angle counterclockwise about the support shaft 13 by the interlocking arm 14.

When the cup body 12 is further rotated, the movable arm 6 is rotated clockwise about the support shaft 5, and the cup body 12 is rotated gradually closer to the movable arm 6. The movable arm 6 is gradually accommodated in the accommodation recess 25 formed in the embedded body 24 of the body 12.

In the above case, due to the rotation of the movable arm 6, the cam 10 formed on the movable arm 6 is moved by the roller 22 engaged with the cam 10.
In other words, the cam 10 is rotated against the roller 22 while resisting the leaf spring 20. In other words, the cam 10 gradually moves toward the other end of the cam 10 from a state in which one end thereof on the engagement protrusion 11 side is engaged with the roller 22. When the engagement rotates, the other end of the cam 10 on the side opposite to the engagement protrusion 11 engages with the roller 22 of the leaf spring 20, as shown in FIGS. 1 and 2. At the same time, due to the biasing force of the leaf spring 20, the movable arm 6 is forcibly rotated clockwise about the support shaft 5, and the cup body 12 is forcibly rotated by the movable arm 6. The movable arm 6 is placed in the housing recess 25 of the cup body 12.
is accommodated, and the accommodation recess 2 of this cup body 12
5 is in contact with the engagement plate 7 of the movable arm 6, and the stopper 31 is in contact with the one end edge 30 of the base plate 2 of the main body frame 1.
Furthermore, the engaging protrusion 11 of the cam 10 is inserted into the locking hole 4 of the main body frame 1, and thereby the main body frame 1
The cup body 12 is closed.

In this way, the cup body 12 is moved to the main body frame 1 by the movement of the movable arm 6, the interlocking arm 14, and the leaf spring 20.
When the cup body 12 is closed, the cup body 12 is repeatedly closed and opened on the engagement plate 7 of the movable arm 6.
Even if the bottom plate 26 of the movable arm 6 comes into contact with the bottom plate 26, since the bottom plate 26 is shaped so that it can move forward and backward with the cut 28, the impact of the engagement plate 7 of the movable arm 6 on the bottom plate 26 is alleviated. The bottom plate 26 is cushioned by moving back and forth, and the bottom plate 26 is not damaged.

In use, the main body frame 1 is fixed to furniture, the embedded body 24 of the cup body 12 is buried in the mounting recess of the door of the furniture, and the flange 35 is fixed to the opening edge of the mounting recess of the door. The door can be moved slightly forward with respect to the furniture and easily installed in a wide open state.

In this case, the bottom of the attachment recess can be reliably covered with the bottom plate 26 of the accommodation recess 25 of the cup body 12.

In the embodiment described above, the cut 28 is formed on both sides of the bottom plate 26, but the cut 28 is not limited to this, and the cut 28 may be formed in one or more lines.

According to the present invention, a cup body made of resin is rotatably attached to one end of the main body frame via a movable arm, and a housing recess is formed in the cup body to accommodate the movable arm when the door is opened. At the same time, a cut is provided on the side of the bottom plate of the accommodation recess, and the bottom plate is shaped to be movable so as to buffer the impact caused by the movable arm, so that the bottom plate of the cup body is provided with cushioning properties. Even if the movable arm collides with this bottom plate, there is no fear that the bottom plate will be damaged or damaged by the impact. Therefore, it is possible to provide a highly durable hinge by using a cup body made of a resin. can.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of the hinge with the cup body closed, Fig. 2 is a sectional view of the same, and Fig. 3 is a sectional view of the same.
The figure is a plan view of the hinge in the open state of the cup body, FIG. 4 is a sectional view of the same as above, FIG. 5 is a perspective view of the top side of the cup body, FIG. be. DESCRIPTION OF SYMBOLS 1...Body frame, 6...Movable arm, 12...Cup body, 25...Accommodating recess, 26...Bottom plate, 28 ...cut.

Claims (1)

[Scope of utility model registration request] A cup body made of resin that is fixed to the door side is rotatably attached to one end of the main body frame via a movable arm, and this cup body has four storage parts that accommodate the movable arm when the door is closed. The hinge is characterized in that a cut is provided on the side of the bottom plate of the accommodation recess so that the bottom plate is movable so as to buffer the impact caused by the movable arm.