JP2001349125A - Separable hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a separable hinge which can be easily and positively attached through one-touch operation in the field, and achieves good installation state thereof. SOLUTION: The separable hinge is comprised of a linking member 3 connected to a rotation connecting portion which connects frame-side blades together, a door-side blade 5 equipped with a linking structure 4 and separated from the linking member 3 before linkage, etc. The linking structure 4 has a connecting member 6, a spring 7, etc., and attached to a door 100 via a screw hole 53. The connecting member 6 includes a protrusion 61 having outside surfaces 61a on both sides thereof, and the linking member 3 has a groove portion 32 having an internal surface 32a. The linking member 3 and the linking structure 4 have gaps δz and δy, respectively. By virtue of the gaps δz and δy, the linking structure 4 can be easily inserted into the linking member 3, and after the insertion, the protrusion 61 is combined with the groove portion 32 by using a spring force to eliminate the gaps, whereby the door can be installed in the frame in a good condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one-sided blade, a rotary coupling portion which connects the one-sided blade so as to be rotatable around a center line, and a connection which is rotatably connected to the rotary coupling portion around the center line. And a connecting structure to be connected to the connecting member, the connecting member having separate other blades before connecting, and having the center line as the Z-axis of the XYZ three-dimensional axis when connecting, A separation type hinge in which a connecting member and the connecting structure are connected in the X direction is used as a technique for facilitating a work of attaching a door to a door frame.

[0002]

2. Description of the Related Art For example, in a prefabricated house manufactured in a factory, one side blade and the other side blade of a separated hinge are attached to a door frame and a door which are separately manufactured, and the door frame is attached to a building at a site. It is transported to the building site while being attached or attached to the unit house, and a door that is separately carried in when the building is completed is attached to the door frame.

[0003] A conventional detachable hinge used for such an application is to extend a plate-like connecting member on one blade usually attached to a door frame, and to attach the other blade attached to the door to the other blade. A hole-shaped connection structure having a square cross section is provided, and both are machined with high precision and fitted without play, and the fitted state is held by a set screw. Therefore, there was no backlash when the door moved, and the door was mounted in a good condition.

However, with such a hinge, one-touch connection of the door cannot be performed, and errors in the mounting position and the mounting angle of the hinge, and variations in processing accuracy of the door and the frame, etc.
Problems often occurred that the connecting structure did not fit into the connecting member, the set screws did not fit, and the hinge could not be connected on site.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the prior art and to provide a detachable hinge which can be easily and reliably mounted on the site by one-touch operation and has a good mounting state. .

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a first aspect of the present invention, which comprises a first blade and a rotary coupling portion rotatably coupling the one blade around a center line. The center having a connecting member rotatably connected to the rotation connecting portion so as to be rotatable around the center line, and a connecting structure portion to be connected to the connecting member, the other side blade being separated before connecting. When the line is set to the Z-axis of the XYZ three-dimensional axis, at the time of connection, at the time of connection, the connecting member and the connecting structure are connected in the X direction, and the connecting structure has outer surfaces on both sides. A coupling member having a protruding portion protruding in the Z direction, being restricted in movement in the X direction and supported movably in the Z direction;
Urging means for urging the coupling member in the Z direction, wherein the coupling member extends in the X direction,
A groove-shaped portion which is located at an intermediate position in the X direction on one surface side and has inner side surfaces on both sides and is retracted from the one surface side, and is formed so as to be inclined at a tip position on the one surface side in a direction retracted from the one surface side. The outer surface and the inner surface are formed such that the outer surface enters the inner surface and presses the inner surface in the Z direction during the connection, It is characterized by the following.

According to a second aspect of the present invention, in addition to the above, the outer surface enters the inner surface when the outer surface and the inner surface are connected to each other, and the inner surface is pressed in the Y direction. It is characterized by being formed as follows.

[0008] The invention of claim 3 is the feature of the invention of claim 1, wherein the engagement release mechanism is made operable from the outside. It has a coupling release mechanism for releasing the coupling relationship by pressing the coupling member in a direction opposite to the direction of urging by the urging means when entering the inner surface and pressing the inner surface in the Z direction. Features.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of the entire structure of a state in which separated hinges to which the present invention is applied are combined, and FIG. 2 is an enlarged view of a connecting structure. FIG. 3 shows an example of the shape of the connecting member and the connecting member provided in the connecting structure 4.

The separation type hinge is a frame-side blade 1 in this embodiment, which is one side blade, a rotary connecting portion 2 which is rotatably connected to the center-axis Z-axis, and is rotatable around the Z-axis. In this example, the connecting member 3 is provided with a connecting structure 3 to be connected to the connecting member 3 and the other side blade which is separated before connecting. X-Z axis
When the three-dimensional Z-axis is used, the connecting member 3 and the connecting structure 4 are connected in the X direction at the time of connection.

The door-side blades 5 are two blades in which a back blade 51 and a front blade 52 having a portion bent in a convex shape so as to form a space are joined. It is provided in the space, and has a coupling member 6, a spring 7 as an urging means, and the like. Reference numeral 53 denotes a screw hole for attaching the door-side blade 5 to the door 100. In addition, in the figure, the front blade 52 is shown by a two-dot chain line. Also, in FIG.
0 indicates only a part in the thickness direction.

The coupling member 6 has an outer surface 61a on both sides, and has a protruding portion 61 which protrudes in the Z direction to a tip surface 61c. Further, this embodiment is formed in a two-stage shape, and has a projecting portion 61 in the upper stage and a lower plate 62 integrally formed therewith and extending in the Z direction in the lower stage in the drawing. And the positioning plate 8 is provided in the lower stage,
The lower plate 6 is guided by the guide surface 81 via the guided surface 62a.
2 is supported so as to be movable in the Z direction by regulating the movement in the X direction. As a result, the coupling member 6 having the protrusion 61 performs such a movement.

The lower plate 62 has a stepped notch 62 in the Z direction.
b, in which the ridges 8 of the positioning plate 8 are provided.
2 are fitted to regulate the movement of the coupling member 6 in the Y direction. The projecting portion 82 also serves as a stopper for stopping the extra movement of the connecting member 6 in the Z direction.

The spring 7 urges the connecting member 6 in the Z direction. Therefore, a hole 63 is formed in the coupling member 6,
The spring 7 pushes the connecting member 6 through the hole 63 using the bent upright surface 51 a of the back blade 51 as a reaction force receiver.

The connecting member 3 extends in the X direction, is located at an intermediate position in the X direction of the one surface side 31, has an inner side surface 32a on both sides, and is recessed from the one surface side 31; An inclined surface 33 and the like are formed at the distal end position of the base 31 so as to be inclined in a direction to retreat from this surface.

The outer surface 61a and the inner surface 32a are formed such that the outer surface 61a enters the inner surface 32a and presses the inner surface 32a in the Z direction at the time of connection. Such a relationship can be formed by various shapes of the inner and outer surfaces. In this example, as shown in FIG.
Tip P _1, the interval x ₁ of P ₂ on both sides of the outer surface 61a is greater than the distance x ₂ of the distal end portion of the inner surface 32a, an outer surface 61
a contacts the inner surface 32a and pushes it. In this example, the outer side surface 61a and the inner side surface 32a are wedge-shaped flat surfaces, and the wedge angles thereof are set to α. In addition,
For convenience of illustration, the figures including the following figures show an angle of α / 2. The projecting portion 61 is urged by the spring 7, but the wedge angle α is usually set so that when the connecting member 3 and the connecting structure portion 4 receive a separating force in the X direction, they are not separated from each other. The angle is made smaller than the friction angle.

FIG. 4 (a) shows a diagram in which the inner and outer surfaces are in contact at the same angle α. However, in actuality, depending on the processing accuracy and the mounting state, P ₁ , P ₂ and the surface 32a or the groove of the connecting member may be formed. Part 32
Contact between the bases Q ₁ and Q ₂ of the surface 61a and the surface 61a in many cases. However, there is no problem with such a contact relationship.
Also, the inner and outer surfaces need not necessarily be flat.

The contact relationship between the two surfaces is shown in FIG.
(B), (c), (d), etc.
Good. In (b), the wedge angle formed by the outer surfaces 61a on both sides is shown.
α₁Is the wedge angle α formed by the inner side surfaces 32a on both sides._TwoLess
Small, point P₁, P_TwoA projection perpendicular to the paper
The protrusion 61 is in line contact in the thickness direction.
In (c), the point Q₁, Q_Two(Q_TwoThe illustration of the side is omitted
). (D) is the inside surface
32a is formed into a spherical shape or a circular arc sectional shape, and the point P ₁And P
_TwoThis is an example of a point contact or a line contact including this point. This
Contact at least two points on both sides as in
61 is urged by the spring 7 in the Z direction indicated by the arrow.
The outer surface 61a can press the inner surface 32a in the Z direction.
If it is a suitable structure, it is possible to adopt various appropriate structures.
Wear.

The connecting member 3 and the connecting structure 4 basically have the above-mentioned structure. However, in this embodiment, the connecting member 3 and the connecting structure 4 are symmetrically formed as a whole for convenience of use. That is, the connecting member 3 is provided with the same groove portion 32 and the other surface side 34 having the inclined surface 33 at the symmetric position of the one surface side 31 in the Z direction, and the front surface 35 and the rear surface 35 in the Y direction. 36.

The connecting structure 4 has both side guide surfaces 83 and 84 and front and back guide surfaces 52a and 85 in the X and Y directions so as to surround the connecting member 3 when it is inserted into the connecting member 3. Both side guide surfaces 83 and 84 are formed integrally with the positioning plate 8 and extend to the front guide surface 52a at both ends in the space formed by the back blade 51. And the connecting member 3
One side 31, the other side 34, the front surface 35 and the back surface 36,
Guide surfaces 83 and 84 corresponding to these, front and back guide surfaces 5
A gap δz in the Z direction and a gap δy in the Y direction having appropriate dimensions are provided between the gaps 2a and 85, respectively.

Although the frame-side blade 1 is not shown in detail, in this embodiment, the mounting plate 21 of the rotary connecting portion 2 is attached to the side wall surface 1.
This is an adjustable type structure which is inserted and mounted in a casing formed between a lower blade (not shown) having a and a, and a set screw 1b with a cam for X-direction adjustment, which becomes right and left in the figure, front and rear at right angles to the paper surface. It has set screws 1c and 1d for Y direction adjustment. Thus, when the door is closed, the gap, inclination, and the like between the door and the frame are adjusted. It is needless to say that a normal fixed type may be used. 1e is a frame 200 at the frontage of the building, for example,
Mounting screw holes for mounting on

The rotary joint 2 includes a main body 22 integrally formed with the mounting plate 21, caps 23 at both ends, position adjusting screws 24 at both ends thereof, and a shaft 2 fitted therein.
5, a spacer ring 26 at both ends, a sleeve bearing 27 with flanges at both ends rotatable relative to the shaft 25, and the like. Is fixed. The mounting plate 21
It is also possible to use a normal rotary coupling portion in which the structure and the connecting member 3 are merely rotatable.

The above-mentioned separation type hinge is used as follows and exerts its function and effect. FIG. 5 shows a state where a hinge is connected when a door is attached to a frame in a building or the like. In a building or the like, hinges A and B are usually attached at two positions above and below the door 100 and the frame 200. The frame side blade 1 and the door side blade 5 of these hinges are attached to the door 100 and the frame 200 in a separated state, and the door and the frame are separately transported to the building site of the building. By connecting the blade 5 side of the door 100 to the connecting member 3 on the blade 5 side of the frame 200 in the X direction, the door 100 is
Attach to 00. In addition, in order to make the work at the time of mounting easy to understand, in FIG.
Although the door is shown opened at 80 °, the door can be mounted from any opening angle as long as the tip of the door is off the frame 200.

When connecting the blade 5 to the blade 1, the door-side blade 5 is connected to the connecting member 3 of the frame-side blades 1 of the upper and lower hinges A and B.
At the same time. In this case, hinge A,
B, the blades 1 and 5 are attached to doors and frames at predetermined positions, and the connecting member 3 and the connecting structure 4 are provided with gaps δz and δy. According to the hinge, the two can be easily connected with one touch, and the door can be mounted on the frame. Hinges A and B
Is large, and even if there is a gap δz, the connecting structure 4
Cannot be inserted into the connecting member 3,
The position adjusting screw 24 is adjusted to finely adjust the connecting member 3 in the Z direction via the spacer ring 26, the shaft 25 and the sleeve bearing 27.

On the other hand, if there is a gap in the fitting portion, when the door is attached to the frame via the separate hinge, there is a possibility that the door will rattle in the above-mentioned gaps δz and δy and in the X direction. is there. On the other hand, in the separation type hinge to which the present invention is applied, rattling is prevented as described below.

Before insertion into the connecting member 3, the connecting member 6 urged by the spring 7 is guided in the Z direction while the lower plate 62 is positioned in the X direction by the guide surface 81 of the positioning plate 8. , Are also positioned at the end of the ridge portion 82 in the Z direction.
In this state, when the connecting structure 4 is inserted into the connecting member 3 in the X direction, the inclined surface 33 at the tip hits the front corner of the connecting member 6 and a component force in the Z direction acts on this. The coupling member 6 is moved so that the spring 7 is compressed so that the distal end face 61 c is retracted to the position on the one side 31.

When the connecting structure 4 is further inserted in the X direction and the groove 32 of the connecting member 3 comes to the position of the projecting portion 61 of the connecting member 6, the projecting portion 61 urged by the spring 7 is moved. As shown in FIG. 4, they come into contact with each other, and the door-side blade 5 is connected to the frame-side blade 1.
Eventually, the door 100 is attached to the frame 200. At this time,
Since the protruding portion 61 and the groove-shaped portion 32 are in a pressure contact state, the positions of the door-side blade 5 and the door 100 in the X direction are determined,
Rattling in that direction is prevented.

When the door is mounted on the frame, as shown in FIG.
When the weight W of the door 100 is the upper and lower hinges A and B, the connecting member 3
The hinges A and B are usually mounted in a positional relationship such that the hinge B below supports the door weight. That is, in the hinge B, the guide surface 83 contacts the other surface side 34 of the connecting member 3, and the weight W of the door 100 is supported by the connecting member 3. 32 comes into pressure contact with each other, and a gap is generated between the guide surface 83 and the other surface side 34. However, door 100 is X at upper and lower hinges A and B
The door 100 does not rattle in the X and Z directions because the lower hinge B supports the load in the X and Z directions. The adjusting screw 24 may be adjusted, and the connecting member 3 may be moved to eliminate the upper gap of the upper hinge.

On the other hand, when the above state is viewed in the Y direction, as shown in FIG. 3B, the moment on the weight W of the door 100 causes the door-side blades 5 of the upper and lower hinges A and B to be indicated by arrows. The horizontal force Fh in the Y ′ direction and the Y direction is applied, and this force is supported by the upper and lower connecting members 3 at a fixed position. Therefore, in the upper hinge A, the surface 35 of the connecting member 3 and the front guide surface 52a
Are pressed against each other, and at the lower hinge B, the back surface 36 of the connecting member 3 and the back guide surface 85 are pressed against each other, and this state is normally maintained. As a result, usually, either the upper or lower hinge rattles in the Y direction, so that the door 100 does not rattle.

Therefore, according to the detachable hinge of the present invention, the door can be mounted by easily connecting the hinge with a single touch at the construction site, and after mounting, the door can be maintained in a good mounted state without rattling. Is done.

FIG. 7 shows a groove-shaped portion 32 of the connecting member 3 and a projecting portion 61 of the coupling member 6 having different shapes as another embodiment of the separation type hinge of the present invention. In this example, in addition to the shape of FIG. 3, the outer surface 61a of the protruding portion 61 and the inner surface 32a of the groove portion 32 are connected to each other so that the outer surface 61a is connected to the inner surface 32a.
And the inner side a is also pressed in the Y direction. Such a surface relationship can be formed into various shapes according to FIG. For example, the outer surface 61a
And the inner side surface 32a is a plane, and the wedge angle α in the Z direction is
₁ and α ₂ can be the same, one can be slightly larger,
For the wedge angle in the Y direction, β ₁ and β ₂ are made the same or one of them is made slightly larger.

FIG. 3B is an explanatory view of a state in which the Y-direction pressing force generated by the above structure is generated. In the figure, for the sake of simplicity, the point P at the intermediate position of the tip of the outer surface 61a is shown to be in contact with the inner surface 32a. Although the right side is shown in the figure, the same applies to the left side.

In the drawing, when a spring force F in the Z direction acts on a horizontal plane S ₁ including a point P, this force is _{first applied} to the Z plane at an angle α ₂ .
The direction the wedge, to generate Kusabiryoku F ₁ in the direction perpendicular to the line L on the inner surface 32a on a horizontal plane S _1. This wedge force F ₁
Then the Y-direction the wedge angle beta _2, rear vanes 51 shown in FIG. 2
A surface S perpendicular to the inner surface 32a with the inner surface 51b as a reaction surface.
_A wedge force F2 is generated at point P in the direction of ₂ . The Y-direction component Fy of the wedge force F ₂ has an effect of pressing the inner surface 32 a in the Y direction when the outer surface 61 a enters the inner surface 32 a when the connecting member 3 and the connecting structure 4 are connected. Then, the connecting member 3 and the connecting structure 4 are positioned in the Y direction. This force Fy is, by determining the wedge angle beta ₂ suitably, the size needed. In this case, if the wedge angle α ₂ is smaller than the friction angle as described above, the projection 61 does not fall out of the groove 32 even if the wedge angle β ₂ is appropriately determined.
Therefore, the positional relationship in the Y direction between the connecting structure 4 and the connecting member 3 is also maintained.

FIG. 8 is a view corresponding to FIG. As described above, at the hinge A, the front guide surface 52a is pressed against the surface 35 of the connecting member 3 by the action of the moment due to the weight of the door. Is held by the Y-direction wedges in addition to the Z-direction wedges. 6B, the lower guide surface 85 is in pressure contact with the back surface 36 of the connecting member 3 in FIG. 6B. However, the lower part of the door is pulled in the Y 'direction away from the hinge, and the wedge in the Y direction is pulled by the spring force. To make the connection in the same state as that of the A hinge, so that the connection can be secured without any backlash even if any force such as the above-mentioned pulling force is applied.

FIG. 9 shows still another embodiment of the separation type hinge to which the present invention is applied. The separation type hinge of the present example includes a cam member 9 as an engagement release mechanism that can be operated from the surface side of the front blade 52. The cam member 9 has a cylindrical support 9.
1. Square large and small cams 9 attached to this in two steps
2, 93, a hexagonal hole 94 operated from the front side, and the like. The support portion 91 is rotatably mounted on the front and back blades 52 and 51. In this embodiment, instead of the positioning of the joining member 6 in the Z direction by the positioning plate 8, the joining member 6
The lower end 62 of the lower plate 62 is brought into contact with the support column 91 to perform the operation. Note that the column 91 may have a rectangular cross section.

According to such a cam member 9, as shown in FIG. 3A, the connecting structure 4 is inserted into the connecting member 3, and the two are connected to each other. From the state where the side surface is pressed in the Z direction,
4, the large cam 92 pushes the pressing member 6 via the distal end portion 62c in a direction opposite to the direction in which the spring 7 is urged. When rotated, a clicking sound is generated by the action of the spring force, and the state is accurately set to the state (d), so that the coupling relationship can be released. Thereby, the connecting member 6 can be retracted in the Z direction, separated from the connecting member 3, and the door can be removed. The large cam 92 also has a guide function when the connecting structure 4 is inserted into the connecting member 3.

On the other hand, when the connection structure 4 is retracted in the X direction with respect to the connection member 3 after the connection relation is released as described above, as shown in FIG. The inner surface 32a hits the small cam 93 and rotates it by 90 ° to return the cam member 9 to the original state shown in (a), thereby enabling the door-side blade to be connected again. With such a structure, the cam member can be automatically returned without any operation, which is convenient for use. However, such a small cam may be omitted, and the hexagonal hole 94 may be operated again from the outside to return. Also, the projecting portion 61 of the coupling member 6
When the width of the groove portion 32 of the connecting member 3 is large, the large and small cams can be integrated to be used for both pressure release and automatic return.

According to such a hinge, the functionality of the hinge can be improved, for example, when the frame and the door are interchanged and mounted, the door can be easily replaced. In the above, the example in which the detachable hinge is mounted on the door frame and the door of the building is shown, but the detachable hinge of the present invention is widely used for opening and closing parts of various containers and devices. It is.
Further, the present invention is not limited to the hinge used so that the Z-axis is in the vertical direction as in the embodiment, and is also used as a hinge such as a lid or a cover which is horizontal.

[0039]

As described above, according to the present invention, according to the first aspect of the present invention, a connecting member rotatable around the XYZ Z axis is provided on one of the blades, and a connecting structure is provided on the other blade.
A connecting member that has a projection that has an outer surface on both sides and protrudes in the Z direction and is supported so as to be restricted in the movement in the X direction and movably in the Z direction; With the structure having the urging means, the projecting portion can be urged by the urging member in the connecting structure, and the outer surface can be urged in the Z direction at a fixed position in the X direction.

The connecting member extends in the X direction,
A groove-shaped portion which is located at an intermediate position in the X direction on one surface side and has inner surfaces on both sides and is retracted from the one surface side, and an inclined surface formed so as to be inclined in a direction retracted from the one surface side at a tip position on the one surface side Therefore, when the connecting structure is moved in the X direction so as to connect with the connecting member, the biased protrusion is pushed in the counter-biasing direction on the inclined surface and retracts, and in this state, the protrusion is formed into a groove. It can be moved to the position of the shape.

Here, since the outer surface of the protruding portion and the inner surface of the groove-shaped portion are formed so that the outer surface enters the inner surface during connection and presses the inner surface in the Z direction, Both sides will be pressed. Thus, for example, when one of the blades is fixed to the door frame and the connecting member is at a fixed position, the connecting structure and thus the other blade are automatically positioned at a fixed position in the X direction, and attached to this. The position of the door in the X direction can be determined. In this case, since the inner and outer surfaces are pressed against each other by the urging force of the urging member and positioned, the connecting structure and the connecting member do not need to be in a precise fitting relationship. A dimensional gap can be provided.

As a result, the door can be connected to the frame by the simplest one-touch operation of simply inserting the connection structure into the connection member with a margin. Therefore, it is possible to avoid a rather difficult and cumbersome operation of fitting and inserting the connecting structure portion into the connecting member under tight tight fitting conditions and then fixing the position with the set screw as in the conventional hinge. be able to.

On the other hand, with such an urging force, the relationship between the one-side blade and the other-side blade is maintained at a fixed position without rattling in the Z direction and the X direction. In the Y direction, since the door is usually sufficiently heavy, a force in a certain direction acts on the blade by the moment associated with the weight, and the force determines the position of the connection structure with respect to the connection member, thereby preventing rattling. . Therefore, according to the first aspect of the present invention, the door can be mounted by the simplest operation so that the mounting state is good.

According to the second aspect of the present invention, in addition to the above, when the outer surface and the inner surface are connected, the outer surface enters the inner surface and the inner surface is pressed in the Y direction. As a result, the outside surface presses the inside surface in the Z direction, and further presses in the Y direction, thereby preventing the door from rattling in the Y direction more reliably without depending on the action of the weight of the door. can do.

According to a third aspect of the present invention, in addition to the first aspect of the present invention, an engagement release mechanism operable from the outside is provided, and when this mechanism is operated, the outer surface becomes inward at the time of connection. When entering the side surface and pressing the inner surface in the Z direction, since the coupling member is configured to be released by pushing the coupling member in a direction opposite to the biasing direction of the biasing means,
By releasing the above relationship, the connection structure can be separated from the connection member. As a result, for example, when the door is mounted on the frame by mistake in the combination of the door and the frame, the door can be easily replaced and mounted, and the workability can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of the entire structure of a separation type hinge to which the present invention is applied.

2A and 2B show the connecting structure of the hinge, wherein FIG. 2A is a plan view and FIGS. 2B and 2C are sectional views taken along lines BB and CC, respectively.

FIGS. 3A and 3B are a plan view and a perspective view showing a structural example of a connecting member and a connecting member of the hinge.

FIGS. 4A to 4D are explanatory views showing an example of a connection state between the connecting member of the hinge and a protrusion.

FIG. 5 is an explanatory view showing a state where the hinge is attached to a door frame and a door.

6 (a) and 6 (b) are explanatory views showing a state of attachment of a connecting structure to a connecting member, wherein (a) is a front view and (b)
Indicates a side state.

FIGS. 7A and 7B are perspective views showing another example of the hinge connecting member and the projecting portion, wherein FIG. 7A shows a connected state, and FIG. 7B shows a state of a force exerted on the connecting member by the projecting portion in that state. Is shown.

FIG. 8 is an explanatory diagram showing a side surface state of an attachment portion of the connection structure portion to the connection member.

FIG. 9 shows another example of the connecting structure of the above-mentioned separation type hinge,
(A) is a plan view showing the entire structure, (b) is a plan view of a cam member, (c) is a front view thereof, and (d) and (e) are explanatory views of the operation of the cam member.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 frame-side blade (one-side blade) 2 rotation connection part 3 connection member 4 connection structure part 5 door-side blade (other-side blade) 6 connection member 7 spring 7 (biasing means) 9 cam member (engagement release mechanism) 31 one surface side 32 groove-shaped part 33 inclined surface 61 protruding part 61a outer surface Z Z axis, center line

Claims (3)

[Claims] A connecting member rotatably connecting the one side blade around the center line and a connecting member rotatably connecting the one side blade around the center line; A connecting structure portion to be connected to the member, the connecting member having the other blade separated before connecting, and the connecting member and the connecting member being connected when the center line is set to the Z axis of the XYZ three-dimensional axis. In a separation type hinge in which a structural part is connected in the X direction, the connecting structural part has an outer surface on both sides and has a protruding part that protrudes in the Z direction, is restricted in movement in the X direction, and is movable in the Z direction. A supporting member, and a biasing means for biasing the connecting member in the Z direction, wherein the connecting member extends in the X direction, and the connecting member extends in the X direction. A groove-shaped portion which is located at an intermediate position and has inner side surfaces on both sides and is retracted from the one surface side; An inclined surface formed at a tip position on the one surface side so as to be inclined in a direction to retreat from the one surface side, wherein the outer surface enters the inner surface when the outer surface and the inner surface are connected to each other. The inner hinge is formed so as to press the inner surface in the Z direction. 2. The outside surface and the inside surface are formed such that the outside surface enters the inside surface and presses the inside surface in the Y direction during the connection. The separation type hinge according to claim 1, wherein 3. An engagement release mechanism operable from the outside, wherein the outer surface enters the inner surface during the connection to press the inner surface in the Z direction when operated. 2. The separation type hinge according to claim 1, further comprising a coupling releasing mechanism for releasing the coupling relationship by pressing the coupling member in a direction opposite to the direction in which the urging means is biased when the hinge is in the position.