JPH10317774A - Hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the adjustment in three directions by three adjusting screws by forming a groove extended in the right and left directions on a lower shaft inside a lower knuckle movable forward and backward and engaging an upper shaft part which can oscillate freely inside an upper knuckle. SOLUTION: A lower shaft 8 has an elliptical cross section which uses right and left directions as a long axis, and a groove 8b extended in the right and left directions is formed in an upper end bearing part 8a to engage a lower end shaft part 16b with it. An upper end shaft part 16c has a shape which allows smooth oscillation inside an upper knuckle 7. A right and left position adjusting screw 12 is screwed in a screw hole 16a, a front and rear position adjusting screw 9 is screwed in a screw hole 8d, and an up and down position adjusting screw 13 is screwed in a screw hole 7a, respectively. When the right and left position adjusting screw 12 or the front and rear position adjusting screw 9 is rotated, an upper shaft 16 moves horizontally in the right and left directions, and a lower shaft 8 moves horizontally in the forward and backward directions. When the up and down position adjusting screw 13 is turned, the relative and vertical travel between the upper knuckle 7 and the upper shaft 16 is done. Consequently, it is possible to perform the alignment for mounting accurately.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to hinges. More specifically, the present invention relates to a hinge for attaching a door, a window, or another object to be opened and closed to a fixing member such as a frame.

[0002]

2. Description of the Related Art Conventionally, a hinge 150 as shown in FIG. 5 is generally used. The hinge 150 includes two mounting plates 151 and 152 having substantially cylindrical knuckles 153 and 154 formed at their respective edges, and each of the knuckles 153 and 153.
A shaft pin 155 is inserted through the base plate 154, and the head 156 at both ends thereof is caulked to rotatably support the two mounting plates 151 and 152. 157 is a mounting hole.

[0003] Using this hinge 150, FIGS.
When the door D is attached to the fitting frame F or the like as shown in FIG. 7, the door D does not fit properly inside the fitting frame F, and the alignment with the fitting frame F may be out of alignment.

In this case, as shown in FIG. 7, there is a problem that the gap between the fitting frame F and the fitting frame F becomes irregular, which is not only unsightly but also hinders the opening and closing of the door D.

[0005] Moreover, in the above-mentioned conventional hinge 150, the misalignment cannot be adjusted, so that once the door D is mounted, the alignment cannot be corrected.

Therefore, the hinge 16 as shown in FIG.
0 has been proposed. The hinge 160 can correct the alignment in the directions of the arrows 161 and 162.

[0007] That is, in FIG.
A pseudo jewel 176 is fixed to the bottom end of the knuckle 173 with a pin 177. This knuckle 173 has 2
The threaded rods 178, 179 are mounted at intervals in the axial direction of the knuckle 173 and penetrate in the radial direction. The screw rods 178 and 179 are rotatably mounted without falling out of the knuckle 173.

The shaft pin 180 has a lower end 181 and an upper end 18.
The lower end 181 is inserted into the knuckle 173. The lower end 181 has a knuckle 1 outer diameter.
It is smaller than the inside diameter of 73 and has room to move radially inside the knuckle 173. The lower end 181 is screwed and supported by the screw rods 178 and 179.

The knuckle 174 of the other mounting plate 172 is inserted into the upper end 182 of the shaft pin 180. A pseudo jewel 183 is fixed to an upper end of the knuckle 174, and a female screw portion 184 is formed inside the pseudo jewel 183.
An adjusting screw 185 is screwed into the female screw portion 184. If this adjustment screw 185 is screwed in, the knuckle 1
The knuckle 174 goes up into the knuckle 174 when it is unscrewed. The tip of the adjusting screw 185 is
Is in contact with the upper end of the shaft pin 180 through the shaft.

The hinge 160 can be aligned after fixing the hinge 160 to the fitting frame and the door through screws in the mounting holes 175.

That is, when the screw rods 178 and 179 are rotated, the lower end 181 of the shaft pin 180 is knuckle 173
Within and can be offset from the center position and back to the center position. And screw rod 17
8 and 179 are rotated in opposite directions to each other to
The zero axis may be inclined with respect to the knuckle 173. By this operation, the door D attached to the fitting frame F
7 can be corrected in the lateral direction (in the direction of arrow 162 in FIG. 8) of the upper end or lower end (see FIG. 7).

Next, when the adjusting screw 185 is screwed in, the knuckle 174 rises because the tip of the adjusting screw 185 is in contact with the upper end of the shaft pin 180. Conversely, adjustment screw 18
When the screw 5 is unscrewed, the knuckle 174 is lowered. Accordingly, the mounting plate 172 moves up and down, so that the misalignment of the door D in the height direction can be corrected.

According to the hinge 160, after the door or the like is attached to the fitting frame, the centering between the door and the fitting frame can be adjusted, so that an unnatural irregularity in the gap can be eliminated.

However, even with the hinge 160 as shown in FIG.
2 is limited to within the plane including, and there is a problem that adjustment in the direction of arrow 163 cannot be performed and fine adjustment cannot be performed.

As another conventional hinge, Japanese Utility Model Application No. 57
No. 176293 (Japanese Utility Model Application Laid-Open No. 59-80064).

As shown in FIGS. 9 to 10, the hinge includes two plate members 201 and 202 and the two plate members 201 and 202.
A shaft 203 attached to the lower plate 201 for rotatably coupling the shaft 202 and a hole 204 attached to the upper plate 202 for allowing the shaft 203 to be rotatably fitted from below. And a metal fitting 205 having In addition, 206 is a ball, and 207 is a guide pin. Further, the overhang portion 201a of the plate body 201 is
03 is loosely fitted between two plate portions 210 connected to the lower end of 03 and screwed to a bolt 208.

In the case of hinges shown in FIGS.
Is rotated to move the plate 201 in the front-rear direction (FIG. 1).
(In the direction of arrow 221), the hinge can be adjusted in the front-rear direction. Further, by screwing a male screw shaft 209 screwed into the female screw hole 211 on the upper part of the metal fitting 205, the plate 202 is moved in the vertical direction (arrow 22 in FIG. 9).
2 direction) to adjust the hinge in the vertical direction. However, the plate 201 or 2
Since the hinge cannot be adjusted in the left-right direction by moving the 02 in the left-right direction (the direction of arrow 223 in FIG. 9), accurate centering of the door cannot be achieved.

The present invention has been made in view of the above circumstances, and has as its object to provide a hinge capable of freely adjusting the alignment of the door in a three-dimensional direction after the door is mounted.

[0019]

The hinge of the present invention comprises: (a)
An upper mounting plate on which the upper knuckle is formed at its edge,
(B) a lower mounting plate having a lower knuckle formed at an edge thereof; and (c) a lower knuckle disposed inside the lower knuckle and horizontally movable in a front-rear direction relative to the lower knuckle. A lower shaft that is guided by a lower shaft guide pin fixed to the lower knuckle, and has an upper end bearing portion formed with a groove extending in the left-right direction with respect to the lower knuckle;
(D) the lower knuckle is disposed inside the lower knuckle,
In order to be able to perform horizontal movement in the left-right direction and swing in the front-rear direction, it is engaged with the groove of the lower shaft,
An upper shaft, which is engaged with the upper knuckle inside, so that an upper end shaft portion can swing in the front-rear direction,
(E) a front / rear position adjusting screw which is screwed into a screw hole formed in the lower shaft so as to penetrate in the front / rear direction;
(F) a right and left position adjusting screw which is screwed into a screw hole formed in the upper shaft so as to penetrate in the left and right direction;
(G) An upper and lower position adjusting screw which is screwed into the upper knuckle from above and whose tip is in contact with the upper end shaft portion of the upper shaft from above, and the upper shaft is rotatable by the left and right position adjusting screw. It is characterized by being supported.

It is preferable that a cap capable of movably housing the upper knuckle is provided on an outer periphery of the upper knuckle.

It is preferable that the tip of the lower shaft portion of the upper shaft has a substantially spherical shape.

It is preferable that the tip of the upper shaft portion of the upper shaft is substantially spherical.

It is preferable that the maximum diameter of the upper shaft portion of the upper shaft is substantially equal to the inner diameter of the upper knuckle, and that at least the maximum diameter portion of the upper shaft portion and its peripheral portion are formed in a substantially spherical shape.

According to the hinge of the present invention, the upper mounting plate and the lower mounting plate are moved in three directions (left, right, front, rear, up and down) relative to each other by turning the three adjusting screws in either order. As a result, the hinge can be adjusted.
Therefore, the door can be accurately aligned after the door is attached to the fitting frame.

Specifically, it is possible to adjust the hinge in three directions by relative movement between the lower shaft and the lower knuckle, between the upper shaft and the lower knuckle, and between the upper shaft and the upper knuckle. it can.

The adjustment in the left and right direction is performed by rotating the left and right position adjustment screws so that the lower shaft of the upper shaft is accurately guided by the groove formed in the upper bearing of the lower shaft, and the upper shaft is adjusted with respect to the lower knuckle. And is relatively horizontally moved in the left-right direction.

In the adjustment in the front-rear direction, the lower shaft moves horizontally in the front-rear direction relative to the lower knuckle while being accurately guided by the lower shaft guide pin by the rotation of the front-rear position adjustment screw. Thereby, the lower end shaft portion of the upper shaft is swung in the front-rear direction relative to the groove of the lower shaft (that is, the direction perpendicular to the extending direction of the groove). At the same time, the upper shaft rotates around the left / right position adjustment screw as a rotation center. At this time, the upper end shaft portion of the upper shaft relatively swings in the front-rear direction inside the upper knuckle. as a result,
The upper knuckle can be horizontally moved in the front-rear direction relative to the lower knuckle.

Further, in the vertical adjustment, the upper shaft portion of the upper shaft inside the upper knuckle is pressed downward by the rotation of the vertical position adjusting screw, whereby the relative position between the upper knuckle and the upper shaft is reduced. This is achieved by performing a vertical movement.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The hinge of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective explanatory view showing an example in which a set of hinges showing an embodiment of the hinge of the present invention is attached to a door, FIG. 2 is a perspective explanatory view of the hinge of FIG. 1, and FIG. FIG. 4 is a perspective view showing a state where the upper shaft and the lower shaft of FIG. 2 are engaged with each other.

FIG. 1 shows a state in which a door D is attached to a fitting frame F by using a pair of hinges 1 of this embodiment which can be adjusted in three directions. In FIG. 1, the hinges are exaggerated and the mounting plate is attached to one side of the door for easy understanding.

In the mounting example of the door D in FIG. 1, the hinge 1 at the upper part of the door is mounted so that the hinge 1 at the upper part of the door is turned upside down so that the door D does not rattle up and down. In addition,
The upper and lower hinges 1 may be attached in the same direction.

FIG. 2 corresponds to the hinge 1 for the lower part of the door shown in FIG. 1, and the hinge 1 having the cap 30 is shown. The cap 30 contains the upper knuckle 7. The upper mounting plate 5 is mounted on the door side, and the lower mounting plate 4 is mounted on the mounting frame side. The cap 30 has a projection 70 (see FIG. 3) provided on the inner peripheral edge of the lower end rotatably fitted to a flange 72 projecting from the outer peripheral edge of the upper end of the holding cylinder 71. 5 rotates. The holding cylinder 71 is fixed to the lower knuckle 6 by a pin 73 so as not to rotate or come off.

Although not shown, the lower knuckle 6
May be further provided so as to cover the outer periphery of the.

The hinge 1 comprises a lower part 2 and an upper part 3, as shown in FIGS. The lower part 2 includes a lower mounting plate 4, a lower knuckle 6 provided at an edge of the mounting plate 4, and members disposed in the lower knuckle 6, that is, a lower shaft 8, a front-rear position adjusting screw 9, It comprises a lower shaft guide pin 10, a left / right position adjusting screw 12 and an upper shaft 16. The upper part 3 includes an upper mounting plate 5, an upper knuckle 7 provided at an edge of the mounting plate 5, and a vertical position adjusting screw 13 provided in the upper knuckle 7. It is preferable that each member of the upper part 3 and the lower part 2 is manufactured from a metal such as iron, stainless steel, aluminum, and brass from the viewpoint of securing strength.

The lower shaft 8 is, for example, a member having an elliptical cross section whose major axis is in the left-right direction (see the arrow 34 in FIGS. 2 and 4) with respect to the lower knuckle 6 as shown in FIG. . The upper shaft bearing 8a of the lower shaft 8 is formed with a groove 8b extending in the left-right direction (see the arrow 34). The lower shaft 8 is guided by a lower shaft guide pin 10 described later so as to be horizontally movable in the front-rear direction (see an arrow 35 in FIGS. 2 to 4) relative to the lower knuckle 6.

The lower shaft guide pin 10 has a hole 8c in the lower shaft 8 for guiding the lower shaft 8 in the front-rear direction (see the arrow 35).
The pin is inserted above and below the front-rear position adjusting screw 9 in parallel with the screw 9. Both ends of the lower shaft guide pin 10 are fixed to the lower knuckle 6.

The upper shaft 16 is rotatably supported by a left / right position adjusting screw 12 described later (see FIG. 3).
The upper and lower ends of the upper shaft 16 are in the front-back direction (arrow 3).
5).

That is, as shown in FIG. 4, the lower end shaft portion 16b is adapted to be capable of both horizontal movement in the left-right direction (see arrow 34) and swinging in the front-rear direction (see arrow 35). The lower shaft 8 is engaged with the groove 8b extending in the left-right direction (see the arrow 34). As shown in FIG. 3, the upper end shaft portion 16c is engaged with the inside of the upper knuckle 7 so as to swing in the front-rear direction (see the arrow 35).

Since the distal end of the lower shaft 16b has a substantially spherical shape, the lower shaft 16b can smoothly move horizontally and swing inside the groove 8b.

The upper end shaft portion 16c of the upper shaft 16 has a shape capable of swinging inside the upper knuckle 7.

For example, as shown in FIGS. 3 and 4, the maximum diameter of the upper end shaft portion 16 c of the upper shaft 16 is such that the upper end shaft portion 16 c can swing smoothly without rattling inside the upper knuckle 7. Dm is the inner diameter d of the upper knuckle 7
It is preferable that at least a portion having the maximum diameter Dm of the upper end shaft portion 16c and a region A around the portion have a substantially spherical shape.

As another shape of the upper end shaft portion 16c,
For example, a shape such as a spindle shape in which the middle diameter is the maximum diameter and the diameter decreases toward the upper end and the lower end may be adopted.

Further, as shown in FIGS. 3 and 4, since a substantially spherical projection 16d is provided at the tip of the upper end shaft 16c, the upper end shaft 16c and the sliding plate 33 (sliding plate 33) are provided.
In the absence of the upper knuckle 7, the contact area between the upper knuckle 7 and the vertical position adjusting screw 13) is reduced and the frictional resistance is reduced, so that the upper knuckle 7 can be smoothly rotated.

As shown in FIGS. 3 and 4, a stopper 16e having an outer diameter larger than the inner diameter d of the upper knuckle 7 is provided at the base of the upper end shaft 16c. Even if the vertical position adjusting screw 13 is excessively rotated, the upper knuckle 7 is not stopped by the stopper 16e.
Knuckle 7 is not lowered too much.

As shown in FIGS. 2 and 3, the right and left position adjusting screw 12 is a screw hole 1 formed in the upper shaft 16 so as to penetrate in the left and right direction (see arrow 34).
6a. The tip (not shown) of the screw 12 is in contact with the lower knuckle 6 or the inner surface of the holding cylinder 71. The rear end 12d of the screw 12 has a hole such as a hexagon or a groove such as a cross so as to be rotatable using a hexagon wrench or a screwdriver. The rear end 12d is exposed to the outside through the round hole 6a of the lower knuckle 6. Therefore, the rotation operation of the left / right position adjustment screw 12 can be easily performed from the outside. Further, since the outer diameter of the male thread portion 12e (see FIG. 3) of the left / right position adjustment screw 12 is larger than the inner diameter of the round hole 6a (see FIG. 2) of the lower knuckle 6, the left / right position adjustment screw 12 falls out. Absent.

As shown in FIGS. 2 and 3, the front-rear position adjusting screw 9 is screwed into a screw hole 8d formed in the lower shaft 8 so as to penetrate in the front-rear direction (see the arrow 35). ing. The tip 9a (see FIG. 3) of the front / rear position adjusting screw 9 is exposed to the outside through the round hole 6b (see FIG. 3) of the lower knuckle 6. The rear end 9b of the front-rear position adjusting screw 9 in which a hole such as a hexagon or a cross-shaped groove is formed is exposed to the outside through the round hole 6c of the lower knuckle 6, like the left-right position adjusting screw 12. Further, since the diameter of the front-rear position adjustment screw 9 is larger than the inner diameter of the round holes 6b and 6c, the front-rear position adjustment screw 9 does not fall out.

As shown in FIG. 3, the vertical position adjusting screw 13 is screwed into a screw hole 7a formed so as to penetrate the upper knuckle 7 in the vertical direction. The tip 13a of the vertical position adjustment screw 13 is located at the upper end shaft portion 16c of the upper shaft 16.
From above via a sliding plate 33. Also, the rear end 13b of the vertical position adjusting screw 13 in which a hexagonal hole or a cross-shaped groove is formed is exposed from the upper surface of the upper knuckle 7 through the screw hole 7a. The height of the mounting plate 5 can be adjusted by rotating the position adjusting screw 13.

In this embodiment, as shown in FIG. 3, since the slide plate 33 is provided between the tip 13a of the screw 13 and the upper end shaft 16c, the upper knuckle 7 rotates smoothly. be able to. In the present invention, the sliding plate 33 is used.
The present invention is not particularly limited, and the leading end 13a and the upper end shaft 16c may be directly in contact with each other without the sliding plate 33.

The hinge 1 configured as described above adjusts the hinge as follows.

When the adjustment in the left-right direction is performed, FIGS.
As shown in (2), the left / right position adjustment screw 12 is rotated using a hexagon wrench or the like. At this time, since the left and right position adjustment screws 12 are constrained at both ends by the inner surface of the lower knuckle 6, they cannot be moved merely by rotating. The upper shaft 16 is
As shown in FIG. 4, the lower end shaft portion 16 b is relatively guided with respect to the upper knuckle 7 while being accurately guided by the grooves 8 b of the upper end bearing portion 8 a of the lower shaft 8 (arrows in FIGS. 2 and 4). 34). As a result, the hinge can be accurately adjusted in the left-right direction.

When adjusting in the front-rear direction, FIGS.
As shown in the figure, the front and rear position adjustment screw 9 is rotated in the same manner as described above. At this time, since the front-rear position adjusting screw 9 is constrained at both ends by the inner surface of the lower knuckle 6, it cannot be moved merely by rotation. Lower shaft 8 is lower shaft guide pin 1
0, the lower knuckle 6 being guided accurately.
Relative to the front-rear direction (see arrow 35 in FIGS. 2 to 4)
To move horizontally.

When the lower shaft 8 moves horizontally in the front-rear direction (see arrow 35), the lower end shaft portion 16b swings in the front-rear direction (see arrow 35) relative to the groove 8b. At the same time, the upper shaft 16 rotates about the left / right position adjustment screw 12 as a rotation center. At this time, the upper end shaft portion 16c
However, the upper knuckle 7 is horizontally moved in the front-rear direction (see arrow 35) relatively to the lower knuckle 6 by moving relatively in the front-rear direction (see arrow 35) inside the upper knuckle 7. it can. As a result, the hinge can be accurately adjusted in the front-rear direction.

When the vertical adjustment is performed, the vertical position adjusting screw 13 is rotated using a hexagon wrench or the like to raise or lower the inside of the upper knuckle 7 by a desired amount. At this time, the upper shaft 16 is
Pressed downward by a. Thereby, relative vertical movement between the upper knuckle 7 and the upper shaft 16 is performed.

The hinge 1 of the present embodiment configured as described above
Can be used by being attached to both the upper and lower sides of the door D as shown in FIG. 1, so that the hinges can be shared.

As shown in FIG. 1, the hinges 1 attached to the lower part of the door and the upper part of the door
(See Fig. 2)
After the vertical adjustment of the door D, the screw 13
By pressing the door D from above and below, the rattling of the door D can be further prevented.

In this embodiment, the lower shaft guide pin 10
Is provided, but the present invention is not limited to this. If at least one pin is provided, the above-described guiding effect can be obtained.
Also, three or more pins may be provided respectively.

The hinge 1 has a cap 30 for completely storing the upper knuckle 7 and hiding the joint.
The appearance can be beautiful. This cap 30
It is preferable to be made of a synthetic resin such as ABS from the viewpoint of elasticity, workability and cost.

Although not shown, if a cap for covering the lower knuckle 6 is provided, the appearance becomes more beautiful.

The cap 30 is designed so that the inner diameter of the cap 30 is larger than the outer diameter of the upper knuckle 7. Therefore, after the three-dimensional adjustment, even if the axis of the upper knuckle 7 and the axis of the lower knuckle 6 are misaligned, this is absorbed in the cap 30 and such misalignment cannot be seen from outside. . The cap 30 has a notch 30a for allowing the upper mounting plate 5 to pass therethrough (see FIG. 3).
Are formed.

Further, a hexagonal hole or a cross-shaped groove is formed on both end faces of each screw so that the left / right position adjustment screw 12 or the front / rear position adjustment screw 9 can be rotated from either end. preferable.

Although not shown, the lower knuckle 6 in FIG.
Around the round holes 6a, 6c and the screw hole 7a of the upper knuckle 7, and the rotation direction of a hexagon wrench (not shown) for rotating the screws 9, 12, 13 and the upper and lower mounting plates 4, 5, respectively. It is preferable to provide a mark such as an arrow indicating the relationship with the adjustment direction. Round holes 6 for each screw
Arrows provided around c include "front" and "back"
The arrows provided around the round hole 6a may be marked with “left” and “right”, and the arrows provided around the screw hole 7a may be marked with “up” and “down”, respectively. preferable.

[0062]

The hinge of the present invention can be adjusted in three directions by three adjusting screws. Therefore, after the door is mounted, the mounting can be centered in a three-dimensional direction, and accurate adjustment can be performed. Then, the appearance after the attachment is beautiful, and the opening and closing of the door can be made smooth.

In the hinge of the present invention, for the adjustment in two directions (left and right and front and rear) of the adjustment in three directions, the urging force from the two directions by the screw is applied to the upper knuckle via one upper shaft. It is configured to communicate. Therefore,
The number of parts can be reduced, and the size of the entire hinge can be reduced.

Further, by covering the cap, foreign matter can be prevented from being caught in the knuckle portion, and the finish becomes beautiful.

The upper mounting plate and the lower mounting plate of the hinge according to the present invention can be mounted on either a frame (such as a pillar) or a door, and can be selected according to the situation at the site. In the present invention, the attachment site is not particularly limited. Further, regardless of the name of the upper mounting plate or the lower mounting plate, it can also be mounted on a door or a column in a manner that is upside down from the illustrated posture.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view showing an example in which a set of hinges showing an embodiment of the hinge of the present invention is attached to a door.

FIG. 2 is an explanatory perspective view of the hinge of FIG. 1;

FIG. 3 is a sectional view taken along line III-III of the hinge of FIG. 2;

FIG. 4 is a perspective view showing an engaged state of an upper shaft and a lower shaft of FIG. 2;

FIG. 5 is a front view of a conventional hinge.

FIG. 6 is a top view of a door showing a conventional hinge mounted state.

FIG. 7 is a front view showing a conventional hinge mounted state.

FIG. 8 is a partially sectional perspective view of another conventional hinge.

FIG. 9 is a longitudinal sectional view of still another hinge according to the related art.

FIG. 10 is a sectional view taken along line XX of the hinge of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hinge 4 Lower mounting plate 5 Upper mounting plate 6 Lower knuckle 7 Upper knuckle 8 Lower shaft 8a Upper bearing 8b Groove 9 Front and rear position adjustment screw 10 Lower shaft guide pin 12 Left and right position adjustment screw 13 Vertical position adjustment screw 16 Upper shaft 16b Lower end Shaft 16c Upper shaft

Claims (5)

[Claims] 1. An upper mounting plate in which an upper knuckle is formed on an edge thereof, (b) a lower mounting plate in which a lower knuckle is formed on an edge thereof, and (c) an inside of the lower knuckle. A groove is provided, which is guided by a lower shaft guide pin fixed to the lower knuckle so as to be horizontally movable in the front-rear direction relative to the lower knuckle, and extends in the left-right direction with respect to the lower knuckle. A lower shaft having an upper end bearing portion, and (d) disposed inside the lower knuckle so that the lower end shaft portion can move horizontally in the left-right direction and swing in the front-rear direction. An upper shaft engaged with the groove of the lower shaft, and an upper shaft portion engaged inside the upper knuckle so that the upper shaft can swing in the front-rear direction; Perforated in the direction A front-rear position adjustment screw screwed into a screw hole; (f) a left-right position adjustment screw screwed into a screw hole formed to penetrate the upper shaft in the left-right direction; A hinge, which is screwed into the knuckle from above, and has a vertical position adjusting screw whose tip is in contact with the upper end shaft portion of the upper shaft from above, and the upper shaft is rotatably supported by the left and right position adjusting screw. . 2. The hinge according to claim 1, wherein a cap capable of movably housing the upper knuckle is provided on an outer periphery of the upper knuckle. 3. The hinge according to claim 1, wherein a tip of a lower end shaft portion of the upper shaft has a substantially spherical shape. 4. The hinge according to claim 1, wherein a tip of an upper end shaft portion of the upper shaft has a substantially spherical shape. 5. A maximum diameter of an upper shaft portion of the upper shaft is substantially equal to an inner diameter of the upper knuckle, and at least a portion having a maximum diameter of the upper shaft portion and a peripheral portion thereof are formed in a substantially spherical shape. The hinge according to 1, 2, 3 or 4.