KR100873733B1 - Damping hinge apparatus controlling velocity - Google Patents

Abstract

A speed controllable deceleration hinge apparatus is provided to control the speed thereof according to a simple configuration and minimize the volume and size thereof to remarkably reduce the number of processing steps and the number of components to thereby decrease the cost. A speed controllable deceleration hinge apparatus includes a fixed hinge(100) having a fixture connecting part(130), a rotating hinge(200) having a cylindrical border(220), a fan-shaped insertion part(210) extended from the inner side(220a) of the border and a rotator connecting part(230) protruded from the outer side(220b) of the border and combined with a rotator, and oil filled in a space formed by the inner side of the fixed hinge and the insertion part of the border. The hinge apparatus further includes a rotation stopping member for stopping the rotation of the rotating hinge and controlling the rotation angle of the rotating hinge, a rotating axis(212) formed at the rotation center of the rotating hinge, and a speed control member formed at the inner side of the border to control the rotating speed of the rotating hinge.

Description

Deceleration Hinge Device with Speed Control {Damping Hinge Apparatus Controlling Velocity}

1 is an external perspective view of a speed reduction hinge apparatus capable of speed control according to an embodiment of the present invention.

2 is an exploded perspective view of FIG. 1.

3 is an internal perspective view of the fixed hinge in FIG. 1.

4 and 5 are cross-sectional views of the operation of the speed reduction hinge device capable of speed control according to an embodiment of the present invention.

6 is an operation of the speed reduction hinge device capable of speed control according to an embodiment of the present invention.

7 is a perspective view of a rotational hinge in a speed reduction hinge apparatus capable of speed control according to another embodiment of the present invention.

          Explanation of symbols on the main parts of the drawings

100; Fixed hinge S1; Hollow part

110; Rotation stop member 110b; Rotating ground

120; Yoepte 130; Fastening part

132; Oil injection port 134; A loser

200; Pivot hinge 210; Insert

214; Oil guide groove 220; Boundary

222; O-Ring Fittings 224; O-ring

230; Rotating fastening part 232; Air exhaust port

240; Speed regulation step 240 '; Speed regulating groove

300; Oil 400; Sealing cap

P1, P2; Sealing screw

The present invention relates to a hinge device, in particular, it can be implemented in a small volume and size, it is possible to adjust the rotational speed of the hinge device by a simple configuration, significantly reducing the manufacturing process and the number of parts to significantly reduce the product cost The present invention relates to a deceleration hinge device capable of speed control so as to be suitable for such use.

In general, a hinge device is provided on a cover of a kimchi refrigerator, a home bar of a double door refrigerator, a bidet, and the like so that the door can be rotated around the hinge of one side when the cover or the home bar is opened and closed. Recently, hydraulic and spring restoring forces have been provided to provide cushioning force when opening and closing the door.

However, the conventional hydraulic shock-absorbing hinge device has a complicated structure mainly using a cam, and as a result, it is pointed out as a problem of increasing the cost of the product due to the complicated product assembly and assembly process.

The present invention was created to solve the problems of the prior art as described above. The purpose of the speed control hinge device capable of speed control according to the present invention is to firstly adjust the speed of the hinge device by a simple configuration, and secondly, the volume. And the size is minimized. Thirdly, the manufacturing process and the number of parts can be drastically reduced, so that the product cost can be greatly reduced. Fourth, the speed that is suitable to control the angle of rotation by the simple configuration. It is to provide a deceleration hinge device that can be controlled.

Speed-controlling deceleration hinge device of the present invention for achieving the above object is a cylindrical shape having a hollow portion having an opening therein, the other side of the opening is formed with a fastening portion to be fastened to the fixed body Fixed hinge; A cylindrical boundary portion composed of an outer circumference surface forming an side surface portion and an inner surface and an outer surface formed at both ends of the outer circumferential surface, an insertion portion extending from an inner surface of the boundary portion to form a fan-shaped column, and an outer surface of the boundary portion. Consists of a rotation fastening portion which is protruded from and fastened to the rotating body, the longitudinal end surface of the insertion portion is in close contact with the bottom surface of the fixed hinge and the insertion portion is rotated in close contact with the inner surface of the fixed hinge A rotating hinge inserted into the hollow part and inserted into the hollow part so that the boundary part is in close contact with the inner surface of the fixed hinge; And an oil filled in an inner surface of the fixed hinge and a space formed by the boundary portion and the inserting portion, protruding from an inner surface of the fixed hinge to a central axis of the fixed hinge, and a central axis of the fixed hinge. It is a columnar shape in which an arc-shaped rotating shaft ground is formed in one surface in a direction, and is in close contact with the rotating shaft member for stopping the rotation of the pivoting hinge and adjusting its rotation angle, and the rotating shaft ground of the rotating stopping member. The rotating shaft formed at the center of rotation of the pivoting hinge to be rotated, and formed on the inner surface of the boundary portion, characterized in that it further comprises a speed adjusting member for adjusting the rotational speed of the pivoting hinge.

Speed reduction hinge device capable of speed control according to the present invention is characterized in that the speed adjusting member is composed of a speed adjusting step portion formed stepped in a fan shape in the direction of the end surface of the insertion portion from the inner surface of the boundary portion.

Speed reduction hinge device capable of controlling the speed according to the present invention is characterized in that it further comprises an oil injection through hole formed in the interior of the fastening portion to penetrate the hollow portion so as to inject oil from the outside. .

Speed reduction hinge device capable of controlling the speed according to the present invention, the oil is introduced by the oil inlet through the oil guide groove formed in the stepped groove at the end surface of the insert portion in order to smoothly injected into the hollow portion It features.

In the speed reduction hinge device capable of speed control according to the present invention, an inlet is formed on the upper side of the rotating shaft so as to communicate with the hollow portion in a longitudinal direction through the rotational fastening portion and the boundary portion, and at the time of oil injection. Characterized in that the air discharge through-hole further for discharging the air in the hollow portion through the inlet.

The deceleration hinge device capable of speed control according to the present invention includes an O-ring fitting groove formed in a groove in the form of a rim along an outer circumferential surface of the boundary portion, and an O-ring for preventing leakage of filled oil by being fastened by elasticity. (O ring) is characterized in that it is configured to further include.

According to the present invention, the speed reduction hinge device capable of controlling the speed may include a concave groove formed in a groove in a ring-shaped cross section in an opening direction of the fixed hinge, and an annular fitting protrusion formed to be fitted to the concave frame so as to protrude from the fixed hinge. Coupled to, and characterized in that it further comprises a ring-shaped sealing cap is formed on the inside of the locking step is fixed to the outer edge of the boundary of the rotary hinge.

Speed reduction hinge device capable of controlling the speed according to the present invention, the fixed hinge is fixed to the fixed body when the shape of the fastening portion is prevented from deformation and further comprises a fat hole formed in the fastening portion to increase the strength It is characterized by.

Speed reduction hinge device capable of speed control according to the present invention is characterized in that it further comprises a sealing screw which is press-fitted into the oil injection through hole and the air discharge through hole respectively.

The speed reduction hinge device capable of speed control according to the present invention is characterized in that the speed adjusting member comprises a speed adjusting groove formed in the inner surface of the boundary portion.

Speed reducing hinge device according to the present invention, the oil injection through-hole formed so as to penetrate the hollow portion in the inside of the fastening portion, so that the oil injected from the oil injection through the smoothly injected into the hollow portion. In order to inject oil, an oil guide groove formed in a groove step at the end of the insert portion is formed in the longitudinal direction through the rotational fastening portion and the boundary portion and is formed at an upper side of the rotating shaft to communicate with the hollow portion. Air discharge through-hole for discharging air in the hollow part through the inlet, O-ring fitting groove formed in the groove in the form of a frame along the outer peripheral surface of the boundary portion, is fastened by elasticity to the O-ring fitting groove, to prevent leakage of the filled oil O ring, groove in the ring-shaped cross section in the opening direction of the fixed hinge Shaped concave frame, a ring-shaped fitting protrusion to be fitted to the concave frame is formed to protrude, the ring shape is coupled to the fixed hinge, the locking step portion is fixed to the outer edge of the boundary of the rotary hinge is formed inside Sealing cap of the press, respectively, in the fat hole and the oil injection hole and the air discharge port formed in the fastening portion to increase the strength to prevent deformation of the shape of the fastening portion when the fixed hinge is fixed to the fixed body It characterized in that it is configured to further include a sealing screw to be forcibly fastened.

The following will be described in detail with reference to the accompanying drawings a preferred embodiment of the present invention the speed control hinge device capable of speed control.

1 is an external perspective view of a speed reduction hinge device A capable of controlling speed according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is fixed in FIG. 1. An internal perspective view of the hinge 100 is shown, and FIG. 4 and FIG. 5 show an operation combined cross-sectional view of a speed reduction hinge device capable of speed control according to an embodiment of the present invention, and FIG. 6 illustrates an embodiment of the present invention. An operation diagram of the deceleration hinge device capable of speed control according to an example is shown.

As shown in Figures 1 to 6, the speed reduction hinge device (A) capable of speed control according to an embodiment of the present invention, the fixed hinge 100, the rotating hinge 200, the oil 300 and the sealing cap 400 and the sealing screws (P1, P2) is characterized in that it is configured.

The fixed hinge 100 is fixed to a fixture 10 such as a refrigerator main body, and has a cylindrical shape in which a hollow portion S1 having an opening in a longitudinal direction is formed therein, and on the opposite side of the opening, the high The fastening part 130 is fastened to the stagnation 10 is formed.

In addition, the fixed hinge 100 has a rotation stop member 110, the oil injection port 132, the inlet frame 120 and the fat hole 134 is formed.

The rotation stop member 110 protrudes from the inner surface 100b of the fixed hinge 100 to the central axis of the fixed hinge 100, and has an arc shape on one surface of the fixed hinge 100 in the central axis direction. Rotating shaft surface 110b is formed, the central side is a fan-shaped pillar shape cut concentrically with the arc, stop the rotation of the pivoting hinge 200, and also adjusts the rotation angle of the pivoting hinge 200 do.

That is, in the rotation stop member 110, the arc formed integrally with the rotary shaft surface (110b) and the inner surface (100b) of the fixed hinge 100 is formed concentrically.

The rotation hinge 200 stop action and rotation angle adjustment action of the rotation stop member 110 will be described in detail below.

The oil injection through hole 132 is formed to penetrate the inside of the fastening portion 130 so as to pass through the hollow portion (S1). Oil is injected into the hollow portion S1 through the oil injection through hole 132.

The indentation frame 120 is recessed in a ring-shaped cross section in the opening direction of the fixed hinge 100.

The weight loss hole 134 is formed in the fastening portion 130 to prevent the shape of the fastening portion 130 is deformed and to increase the strength when the fixed hinge 100 is fixed to the fixed body (10). do.

When the fat hole 134 is not formed, when the fastening portion 130 is bitten and fastened to a fastening portion (not shown) of the fixing body 10, a problem occurs that the strength is weak and crushed. , The fat ball 134 is configured to solve the problem that the fastening portion 130 is distorted, the fastening portion 130 by the configuration of the fat hole 134, even if receiving a large deformation force from the outside The shape can be maintained without deformation.

The rotating hinge 200 is fixed to a rotating body 20 such as a home bar, a refrigerator cover, a bidet cover, and coupled to a damping rotation of the fixed hinge 100 to fix the hinge according to the rotation of the rotating body 20 ( It rotates about 100).

The pivoting hinge 200 has a cylindrical boundary portion 220 formed of an outer circumferential surface 220c and an inner surface 220a and an outer surface 220b respectively formed at both ends of the outer circumferential surface 220c and the outer circumferential surface 220c. And an insertion portion 210 extending from the inner surface 220a of the boundary portion 220 to have a fan-shaped pillar shape, and protruding from the outer surface 220b of the boundary portion 220 to be fastened to the rotating body 20. Rotating fastening portion 230, the longitudinal end surface 210a of the insertion portion 210 is in close contact with the bottom surface 100a of the fixed hinge 100, the insertion portion 210 is The inserting portion 210 is inserted into the hollow portion S1 so as to be partially in contact with the inner surface 100b of the fixed hinge 100 and the boundary portion 220 is the inner surface 100b of the fixed hinge 100. It is inserted into the hollow portion (S1) to be in close contact with the rotation.

In addition, the rotation hinge 200 is provided with a rotating shaft 212, a speed adjusting step 240, an oil guide groove 214, an air discharge opening 232, and an O-ring fitting groove 222.

The rotation shaft 212 is formed at the rotation center of the rotation hinge 200 to be in close contact with the rotation shaft ground (110b) of the rotation stop member 110.

The speed control step 240 is formed to be stepped in the shape of a fan in the direction of the end surface 210a of the insertion portion 210 from the inner surface 220a of the boundary portion 220, the rotation of the pivoting hinge 200 Adjust the speed.

When the speed adjusting step 240 is located on the upper surface 110a of the rotation stop member 110 by the rotation of the pivoting hinge 200, only the pivoting hinge 200 can be rotated (that is, The speed adjusting step part 240 and the rotation stopping member 110 form a gap d2 so that the upper surface 110a of the speed adjusting step 240 and the rotation stopping member 110 form a sliding tolerance. .

And, the corner of the speed control step 240 is rounded as shown in Figures 2, 4, 5 well.

When the speed adjusting step 240 is located on the top surface 110a of the rotation stop member 110, since the oil is moved only through the gap d2, the flow is limited so that the speed of the pivoting hinge 200 is reduced. When the speed adjusting step 240 is out of the upper surface 110a of the rotation stop member 110, the flow of oil is smooth and the speed of the rotation hinge 200 becomes relatively high. Speed control operation of the rotation hinge by the speed control step 240 will be described in more detail below.

The oil guide groove 214 is a groove formed in the spiral in the end surface (210a) of the insertion portion 210 in order to smoothly inject the oil injected from the oil injection hole 132 into the hollow portion (S1) do.

As shown in FIGS. 2, 4, and 5, the air discharge through hole 232 is formed to penetrate in the longitudinal direction inside the rotational fastening portion 230 and the boundary portion 220 and the hollow portion S1. Inlet 232a is formed on the upper side of the rotating shaft 212 to communicate with, it is a passage for discharging air in the hollow portion (S1) through the inlet 232a at the time of oil injection.

As shown in FIG. 2, the inlet 232a of the air discharge port 232 is formed above the rotation shaft 212 to be adjacent to the inner surface 220a of the boundary portion 220.

The O-ring fitting groove 222 is grooved in the form of a frame along the outer circumferential surface 220c of the boundary portion 220. The O-ring fitting groove 222 is configured to fit the O-ring 224 to be described below.

And, the present invention is fitted by the O-ring fitting groove 222 by elasticity, and further comprises an O-ring (O ring) 224 for preventing the leakage of the filled oil.

The O-ring 224 is preferably implemented as an O-ring made of silicon. As described above, the O-ring 224 may be formed of a silicon material, thereby preventing the O-ring 224 from being corroded by the oil 300.

The oil 300 is filled in the space formed by the inner surface 100b of the fixed hinge 100 and the boundary portion 220 and the insertion portion 210 to control the rotational speed of the rotating hinge 200.

That is, the oil 300 adjusts the rotational speed of the rotation hinge 200 in accordance with the degree of viscosity.

The oil 300 is preferably implemented by silicone oil, and uses a low viscosity silicone oil to speed up the pivoting hinge 200, and high viscosity silicone to slow down the pivoting hinge 200. Use oil.

The sealing cap 400 is implemented in a ring shape, the ring-shaped fitting protrusion 401 to be fitted to the yaw frame 120 is formed to protrude and coupled with the fixed hinge 100, the rotation hinge 200 The locking step portion 402 which is fixed to the edge of the outer surface 220b of the boundary portion 220 of the () is formed inside.

In addition, the fitting protrusion 401 may be more strongly adhered to the indentation frame 120 by ultrasonic welding and thus may be sealed.

The sealing screws (P1, P2) is pressed against the oil injection port 132 and the air discharge through port 232, respectively, so that the oil through the oil injection through hole 132 and the air discharge through hole 232 To prevent leakage.

FIG. 7 is a perspective view of the pivoting hinge 200 'in the speed reduction hinge apparatus capable of speed control according to another embodiment of the present invention.

As shown in Figure 7, in the hinge device according to another embodiment of the present invention, as the speed control member, a speed control groove 240 'is formed.

The speed control groove 240 ′ is formed in the concave surface 220a of the boundary portion 220 to decelerate the rotation speed of the pivoting hinge 200.

That is, when the speed adjusting groove 240 'is located on the upper surface 110a of the rotation stop member 110, the oil moves smoothly, so that the speed of the rotation hinge 200 becomes relatively fast, and the speed adjusting groove When 240 'is deviated from the upper surface 110a of the rotation stop member 110, the movement of oil is not smooth and the speed of the pivoting hinge 200 is reduced.

Next, a description will be given of the operation process of the speed control hinge device according to the present invention having the configuration as described above.

First, a process of assembling the hinge device A according to the present invention will be described.

First, the oil is injected through the oil injection hole 132 in a state in which the rotary hinge 200 to which the O-ring 224 is fastened is fixed to the fixed hinge 100 by being fixed.

The oil injected through the oil injection through hole 132 is introduced into the hollow portion S1 through the oil guide groove 214, and when the oil is filled up to the air discharge through hole 232, the sealing screws P1 and P2. To prevent leakage of oil.

Then, the sealing cap 400 is fitted into the male and female frame 120 of the fixed hinge 100.

At this time, the length of the fitting protrusion 401 (for example, 1.3mm) is formed with a tolerance than the depth of the inlet frame 120 (for example, 1.00mm), which is the process of ultrasonic welding as described above Part of the fitting protrusion 401 is to melt more strongly fusion to the inlet frame 120.

As described above, the operation process in the state in which the oil 300 is filled and the product is assembled will be described.

4 is an operation diagram when the speed adjustment step 240 is located on the top surface 110a of the rotation stop member 110, Figure 5 is the speed control on the top surface (110a) of the rotation stop member 110 The operation diagram in the case where the stepped part 240 is removed is shown.

6 (a) to (d) is a view in the longitudinal direction of the hinge device (A) in accordance with the rotation of the rotation hinge 200 in a state in which the rotation hinge 200 is coupled to the fixed hinge 100 After cutting at a right angle with respect to the boundary portion 220 is shown a cross section.

FIG. 6A shows a view in which the rotor 20 is closed.

As shown in FIG. 6A, in the state in which the rotating body 20 is closed, one side 210c ′ of the insertion portion 210 of the pivoting hinge 200 is formed of the rotation stop member 110. It is in close contact with one side 110c '.

Now, when the rotating body 20 is rotated by an external force, the rotating hinge 200 is rotated in the direction of the arrow of Figure 6 (b) by the rotational force of the rotating body 20, wherein the oil 300 Is moved along the oil movement passage (thickness: d1) formed between the upper surface (110a) of the rotary stop member 110 and the inner surface (220a) of the boundary portion 220 and the one side (210c ') and one side ( It moves to the space Sb which 110c 'forms.

When the rotating body 20 is further rotated and the speed adjusting step 240 starts to overlap with the rotation stopping member 110 (FIG. 6C), the speed adjusting step 240 and the rotating stopping member ( Since the upper surface 110a of the 110 forms a very small gap d1, the oil moving to the space Sb is subjected to a blocking control by the speed adjusting step 240 to move the oil. The amount is drastically reduced.

Therefore, since the speed adjusting step part 240 starts to overlap with the rotation stop member 110, the rotation speed of the rotation hinge 200 is decelerated to cause damping.

As described above, when the other side surface 210c ″ of the rotary hinge 200 is in contact with the other side surface 110c ″ of the rotation stop member 110 while the rotation speed is reduced, the rotary hinge 200 Rotation is stopped, and as a result, the rotation body 20 is also stopped.

As described above, the rotation angle of the rotation hinge 200 is the central angle θ1 of the fan-shaped rotation stop member 110 and one side (210c ') and the other side (210c) of the insertion portion 210 Is determined by the angle θ2. In particular, when the angle θ2 is 180 degrees, the rotation angle of the rotation hinge 200 is determined by the center angle θ1.

In addition, the deceleration speed of the rotary hinge depends on the thickness of the speed adjusting step 240 and the size of the gap d2 between the speed adjusting step 240 and the upper surface 110a of the rotation stopping member 110. Is determined.

That is, when the gap d2 between the speed regulation step part 240 and the upper surface 110a of the rotation stop member 110 is large, the amount of oil moved increases, so that the rotation speed becomes relatively large, and the speed control step part 240 ) And the gap d2 between the upper surface 110a of the rotation stop member 110 is small, the amount of speed to be decelerated is large, and the damping speed is small.

In addition, the deceleration speed of the rotary hinge can be adjusted by the viscosity of the oil 300, in addition to the thickness of the speed adjusting step 240.

On the other hand, in the case of the hinge device using the rotating hinge 200 'shown in Figure 7, when the speed adjusting groove 240' is located in the rotation stopping member 110, the rotation speed of the rotating hinge 200 ' Is relatively fast, and the rotation speed of the rotating hinge 200 'is relatively slow when the speed adjusting groove 240' is out of the rotation stop member 110.

The above embodiments of the present invention are merely one embodiment of the technical idea of the present invention, and of course, other modifications are possible within the technical idea of the present invention.

Speed reduction hinge device according to the present invention having the configuration and operation process as described above has the following effects.

 First, there is an effect that can reduce the speed of the hinge device by a simple configuration of a rotating hinge provided with a speed adjusting step and a fixed hinge provided with a rotating stop member.

Second, there is an effect that can adjust the deceleration speed of the hinge device by adjusting the gap between the speed adjusting step portion and the rotation stop member.

Third, in addition to adjusting the gap between the speed adjusting step part and the rotation stop member, the deceleration speed of the rotating hinge can be adjusted by the viscosity of the oil 300.

Fourth, since the product can be completed by a simple configuration as described above, there is an effect that can minimize the volume and size.

Fifth, as a result of the above, there is an effect that can significantly reduce the product cost by dramatically reducing the manufacturing process and the number of parts.

Sixth, the rotation hinge 200 by adjusting the central angle (θ1) of the fan-shaped rotation stop member 110 and the angle (θ2) formed by one side (210c ') and the other side (210c' ') of the insertion portion 210 ), The rotation angle can be adjusted.

Particularly, when the angle θ2 formed between the one side 210c 'and the other side 210c' 'of the insertion unit 210 is 180 degrees, the rotation is performed only by the fan-shaped center angle θ1 of the rotation stop member 110. There is an effect that can adjust the rotation angle of the hinge 200.

Claims (11)

A fixed hinge (100) having a cylindrical shape having an opening (S1) having an opening formed therein, and having a fastening portion (130) fastened to the fixed body (10) on the other side of the opening; A cylindrical boundary portion 220 formed of an outer circumferential surface 220c and an inner surface 220a and an outer surface 220b respectively formed at both ends of the outer circumferential surface 220c and the outer circumferential surface 220c forming the side portion, and the inner side of the boundary 220. Insertion portion 210 extending from the surface (220a) to form a fan-shaped column, and the rotational fastening portion 230 is protruded from the outer surface (220b) of the boundary portion 220 is fastened to the rotating body 20 It is configured, the end surface 210a of the longitudinal direction of the insertion portion 210 is in close contact with the bottom surface 100a of the fixed hinge 100 and the insertion portion 210 is the inner surface (100b) of the fixed hinge 100 The insertion portion 210 is inserted into the hollow portion (S1) so as to be rotated in close contact with the), and the hollow portion (20) so that the boundary portion 220 is in close contact with the inner surface (100b) of the fixed hinge (100). A rotating hinge 200 inserted into S1); And Including the oil 300 is filled in the space formed by the inner surface (100b) and the boundary portion 220 and the insertion portion 210 of the fixed hinge 100, Protruding from the inner surface (100b) of the fixed hinge 100 extending to the central axis of the fixed hinge 100, arc-shaped rotary shaft ground (110b) is formed on one surface of the central axis direction of the fixed hinge 100 In the column shape, the rotation stop member 110 for stopping the rotation of the rotation hinge 200, and also adjusts the rotation angle, A rotation shaft 212 formed at the rotation center of the rotation hinge 200 to be in close contact with the rotation shaft ground surface 110b of the rotation stop member 110; Speed control member is formed on the inner surface (220a) of the boundary portion 220, the speed control member for adjusting the rotational speed of the rotating hinge 200, characterized in that the speed control capable of controlling the speed. The method according to claim 1, wherein the speed control member, Deceleration capable of speed control, characterized in that consisting of a speed control step 240 formed stepped in a fan shape toward the end surface 210a of the insertion portion 210 from the inner surface 220a of the boundary portion 220 Hinge device. The method according to claim 2, In order to inject oil from the outside, the speed control, characterized in that it further comprises an oil injection through hole 132 formed through the inside of the fastening portion 130 to penetrate into the hollow portion (S1) Possible deceleration hinges. The method according to claim 3, The oil guide groove 214 is further provided with a stepped groove in the end surface 210a of the insertion portion 210 in order to smoothly inject the oil injected from the oil injection through hole 132 into the hollow portion (S1). Decelerating hinge device capable of speed control, characterized in that the configuration. The method according to claim 4, An inlet 232a is formed on the upper side of the rotating shaft 212 so as to penetrate in the longitudinal direction and communicate with the hollow part S1 in the interior of the rotational fastening part 230 and the boundary part 220. Speed control hinge capable of speed control, characterized in that it further comprises an air discharge port 232 for discharging the air in the hollow portion (S1) through the inlet (232a). The method according to claim 5, An o-ring fitting groove 222 having a groove formed in a rim along the outer circumferential surface 220c of the boundary portion 220; And The O-ring fitting groove 222 is fastened by elasticity, the deceleration hinge device, characterized in that it further comprises an O-ring (O ring) (224) for preventing the leakage of the filled oil. The method according to claim 6, A concave frame formed with a groove in a ring-shaped cross section in the opening direction of the fixed hinge 100; And Ring-shaped fitting protrusion 401 to be fitted to the inlet frame 120 is formed to protrude and coupled with the fixed hinge 100, the outer surface 220b edge of the boundary portion 220 of the rotary hinge 200 Speed reduction hinge device capable of speed control, characterized in that it comprises a ring-shaped sealing cap 400 is formed in the locking step portion 402 is fixed to the inside. The method according to claim 7, When the fixing hinge 100 is fixed to the fixing body 10 to prevent the deformation of the shape of the fastening portion 130 is deformed to increase the strength, the fat hole 134 formed in the fastening portion 130 is further Decelerating hinge device capable of speed control, characterized in that it is configured to include. The method according to claim 8, And a sealing screw (P1, P2) press-fitted into the oil injection through hole (132) and the air discharge through hole (232) to be forcibly fastened, respectively. The method according to claim 1, wherein the speed control member, Reducing hinge device capable of speed control, characterized in that consisting of a speed adjusting groove 240 'formed in the inner surface (220a) of the boundary portion (220). The method according to claim 10, An oil injection through hole 132 formed to penetrate the hollow part S1 in the fixed fastening part 130; An oil guide groove 214 formed with a recess step at the end surface 210a of the insertion portion 210 so that the oil injected from the oil injection through hole 132 can be smoothly injected into the hollow portion S1; An inlet 232a is formed on the upper side of the rotating shaft 212 so as to penetrate in the longitudinal direction and communicate with the hollow part S1 in the interior of the rotational fastening part 230 and the boundary part 220. An air discharge opening 232 for discharging air in the hollow portion S1 through the inlet 232a; An o-ring fitting groove 222 having a groove formed in a rim along the outer circumferential surface 220c of the boundary portion 220; O-ring (224) to be fitted to the O-ring fitting groove 222 by elasticity, to prevent leakage of the filled oil; A concave frame formed with a groove in a ring-shaped cross section in the opening direction of the fixed hinge 100; Ring-shaped fitting protrusion 401 to be fitted to the inlet frame 120 is formed to protrude and coupled with the fixed hinge 100, the outer surface 220b edge of the boundary portion 220 of the rotary hinge 200 Ring-shaped sealing cap 400, the locking step portion 402 is fixed to the inner side is formed; Weight loss holes 134 formed in the fastening portion 130 to prevent the shape of the fastening portion 130 from being deformed and increase the strength when the fixed hinge 100 is fixed to the fixed body 10; And And a sealing screw (P1, P2) press-fitted into the oil injection through hole (132) and the air discharge through hole (232) to be forcibly fastened, respectively.

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