JPS5940540Y2 - door hinge - Google Patents

Description

[Detailed description of the invention] This invention relates to a red hinge that allows doors to open and close automatically.
The purpose is to provide an automatic opening/closing device with a simple structure and reliable operation.

Conventionally, automatic opening and closing of doors has been carried out using spring-loaded door checks or hydraulic door hinges, but these have the disadvantages of complex structures, troublesome installation, and frequent breakdowns.

Similar to Tako's idea in the past, we created 4 sloping surfaces on the base of the hinge pieces on the frame side, so that the bearings of the bearing shafts fixed to the 4 door hinge pieces on these slanted surfaces could rotate. There are Shimada hinges, but the bearings wear out quickly, and they are too slippery, causing the door to close suddenly, causing damage to the door and making a lot of noise.

Furthermore, there is a method in which the base tubes of the hinge pieces on the frame side and the door body side are formed with slanted metal and fitted onto the central shaft, but this has the disadvantage that it does not slide well and does not work properly.

This invention provides a red hinge that does not have the above-mentioned drawbacks, and embodiments of this invention will be described below with reference to the drawings.

In the embodiment shown in FIGS. 1 and 2, a hinge piece 20 for attaching the frame 1 is provided on the cylinder 3 with a spiral slope 4 extending in the circumferential direction, and this slope 4 has an angle of about 10 to 30 degrees. It's even more outward leaning.

On the other hand, a protrusion 8 is protruded from the lower end of the base cylinder 7 of the door mounting hinge piece 6 at an appropriate position, and this protrusion 8 is in contact with the slope 4.

In the figure, 9 is a central axis, and 10 is a hole for screwing.

FIG. 3 shows another embodiment of the gold stone, in which a slope 4 in the circumferential direction is formed on the base cylinder 3 of the hinge piece 2 for attaching the frame by a cut cut in a straight line with an inclination of a predetermined angle, and from this cut The slope 4 is further inclined somewhat with respect to the width direction of the hinge piece 2, and its upper and lower ends are flattened.

In this case, when the door 5 is open, the inclination of the upper part of the slope 4 that the protrusion 8 comes into contact with becomes steep, and when the door 5 is about to be closed, the slope of the lower part of the slope 4 becomes gentle.
This is very convenient for opening and closing the door 5.

FIGS. 4 and 5 show still another embodiment 4, in which concave holes 11 are protruded at several places on the base cylinder 3 of the hinge piece 2 for attaching the frame body 1,
A sliding member 13 protruding from the lower surface of a protrusion 124 that fits into the recess 11 is fitted onto the base cylinder 3.

A gentle slope 4 is formed on the upper surface of the sliding member 13, and this slope 4 is inclined outward from the middle in the radial direction.

On the other hand, a hinge piece 60 for attaching the door 5 and a protrusion 8 are protruded from the lower end of the base cylinder 7 at appropriate positions, and the protrusion 8 is in contact with the slope 4.

20 is an externally inclined surface.

In addition to the above, the degree of inclination of the slope 4 can be adjusted according to the opening/closing speed of the door, and the degree of outward inclination can also be adjusted due to the original vibration between the central axis 9 and the base cylinder 7 of the hinge piece 6 for door addition. The angle can be appropriately determined in the range of about 10 to 30 degrees, taking into account the overload on the 8 and the rotational force to be obtained by outward tilting.

It is preferable that the twisted sliding member 13 is made of engineering plastic with a low vibration coefficient, such as polyacetal resin.

This sliding member 13 can be detachably increased by pulling out the center shaft 9□, or by providing a notch at the center @9 on the surface of the sliding member 13 itself and fitting it from the face of the center shaft 9. You can make it look like it's attached.

The present invention has the above structure, in which the frame 1 is attached to the base tube 7 of the hinge piece 6 attached to the door 5, and the protrusion 8 is loosely fitted to the center shaft 9 on the base tube 3 of the hinge piece 2. However, when the door 54 is opened by hand, the protrusion 8 rises to the slope 4.

Therefore, when the door 5 is released, the weight of the door 5 and the outward inclination of the slope 4 match, and the base cylinder 7 descends while rotating in the opposite direction under the guidance of the slope 4, so that the door 5 also closes while descending. reactor.

Since this device is constructed as described above, the weight of the door 5 acts as a load on the slope 4, and sliding is prevented by changing the vector direction 4 by tilting the slope 4 and tilting the slope 4. Since only the protrusion 8 provided on the base tube 7 of the hinge piece 6 is brought into contact with the slope during door installation, the door 5 can be moved up and down extremely smoothly.

Since the sliding member 13 is removably installed on the base tube 3 of the frame mounting hinge piece 2, even if the sliding member 13 wears out, it can be easily replaced, and the upper part of the door 5 can be easily replaced. There will be no trouble charges.

[Brief explanation of the drawing]

Fig. 1 is a plan view of one embodiment of the hinge in use according to the present invention, Fig. 2 is an enlarged side view thereof, and Fig. 3 is another embodiment 4.
FIG. 4 is an exploded perspective view showing another embodiment, FIG. 5 is a vertical cross-sectional view of a main part thereof. 1... Frame body, 2... Frame mounting hinge, 3...
・Base cylinder, 4...Slope, 5...Buddha, 6...
...N mounting hinge, 7...Base tube, 8...Protrusion, 9...Center shaft, 13...Sliding member.

Claims (1)

[Claims for Utility Model Registration] 1) A slope 44 is formed in the circumferential direction on the base tube 3 of the frame mounting hinge piece 2 of the hinge fitting that connects the door 5 and the frame 1, and the other door mounting hinge A protrusion 8 is provided at an appropriate position on the lower end of the base tube 7 of No. 6 to contact the slope 4, and the base tube 3 and the base tube 7 are
A red hinge with four features: the center shaft 94 is loosely fitted. 2) The garden hinge according to claim 1, wherein the slope 4 is formed on a sliding member 13 that is detachably inserted on the base cylinder 3 of the frame mounting hinge piece 2. 3) The garden hinge according to claim 1 or 2, wherein the slope 4 is formed by a cut cut in a straight line with an inclination of a predetermined angle. 4) The red hinge according to claim 1 or 2, in which the slope 4 is inclined outward within a range of about 10 to 300 degrees.