JP2005146625A - Hinge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge device constituting so as to make the whole hinge device completely flush with the door face in the closed state of the door and capable of opening/closing 180°, securely preventing invertedly folding phenomenon of a mal function, and excellent in strength face and compactness. <P>SOLUTION: The frame side base plate and the intermediate plate are connected to be freely rotatable by first rotary shaft arranged within the thickness of the door and the intermediate plate and the door side plate are connected together by a second rotary shaft to be freely rotatable. An arc shaped long hole having the folded part or a wide part at the end is formed on a circular track around the first or the second rotary shaft on either plate face and a fixing pin is inserted in the arced long hole in the state that an intermediate plate or the door side plate is put through and by the fixing pin moving horizontally the arc shaped long hole, the folded part or the widened part by the opening/closing motion of the door, the movement of the intermediate plate and the door side plate is regulated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a hinge device that rotatably holds a door.

  Conventionally, hinges and pivot hinges are known as hinge devices that hold the door rotatably on the frame, and in either case, the door can be rotated 180 ° by bringing the axial center position to the door opening side. Most of them make it possible. Therefore, the shaft core part naturally protrudes from the door surface, which is not very good in terms of design. In particular, in the case of an indoor door or the like, there is a risk that an infant may hit the head because it becomes a protrusion from the door surface. .

  In addition, some types such as floor hinges have a central suspension with an axial center at the center position in the thickness direction of the door, but this type can basically open the door only up to 90 °. Since it is necessary to make a large gap between the surface and the frame, the usage is limited, and in general, it is not so frequently used. Further, there is a hidden hinge that can be incorporated in the thickness direction of the door and the frame, including the shaft core portion. The appearance of the hidden hinge is not exposed at all and can be opened by 180 °. However, the hidden hinge has a very large number of parts, its mechanism is complicated and expensive, and it cannot be divided into the door side and the frame side when hanging the door, so it is difficult to hang it, and complicated digging into the door and frame Furthermore, the concealed hinge has a problem that it is not suitable for heavy doors because it is not structured to easily obtain strength.

  In addition, an intermediate plate is provided between the door-side plate and the frame-side base plate in the form of a pivot hinge, and these plates are connected by two rotating shafts, enabling 180 ° opening without taking out the rotating shaft. In this configuration, the reverse folding phenomenon that the intermediate plate rotates freely when the door is opened and closed has been a problem. Therefore, what prevents the reverse folding phenomenon and obtains the operation of each plate in accordance with the rules is disclosed in Japanese Utility Model Laid-Open No. 2-1983 and Japanese Utility Model Laid-Open No. 5-71382.

  However, the actual open 2-11983 has a structure in which the mechanism for regulating the operation of each hinge urges the ball to the concave portion with a spring, and when it is always opened and closed smoothly, the operation may be controlled by the magnitude of such resistance. However, it can be assumed that it is difficult to completely prevent the reverse folding when a sudden force is partially applied. Further, the actual open flat 5-71382 further includes a moving member in the structure of the frame side base plate, the intermediate plate, and the door side plate, and the operation of the intermediate plate is caused by the movement of the moving member in and out of the recessed portion provided in the frame side base plate and the door side plate. Is configured to control. Therefore, a separate moving member is required, and a circular turntable portion is provided on the frame-side base plate and the door-side plate, and a concave portion is required on the outer periphery thereof.

Further, the actual open flat 2-11983 and the actual open flat 5-71382 are premised on furniture, storage doors, etc., and the frame side base plate, the intermediate plate, the door side plate, and other necessary parts are used as the first rotation shaft and the second rotation. It is configured to be attached to the door and frame with the shaft fully assembled. Therefore, it is necessary to fix the frame side base plate and the door side plate with screws etc. while holding the door in a lifted state, and it is very difficult to hang it at the entrance or door with a large weight for indoor use. It is done.

  Therefore, the present inventor is a pivot hinge type, an intermediate plate is provided between the door side plate and the frame side base plate, and the plate can be opened and closed by 180 ° with a configuration in which the plates are connected by the first rotating shaft and the second rotating shaft. In addition, it can prevent reverse folding phenomenon of the intermediate plate, and it is also possible to easily hang the door by dividing the hinge device and attaching it separately to the frame and door, and then fitting them together Japanese Patent Laid-Open No. 2002-250171 presented a hinge device that can sufficiently handle heavy doors such as doors and indoor doors.

  The hinge device rotates about the first rotation axis with the door side plate and the intermediate plate overlapping until a predetermined angle position, and only the door side plate attached to the door is reached when the predetermined angle position is reached. The mechanism further rotates around the two rotation shafts. At this time, the intermediate plate is regulated by a locking pin, and a mechanism for preventing reverse folding is provided by being completely held at a predetermined angular position. Therefore, when the door is closed from a state where it is largely opened, the intermediate plate is held by the locking pin until immediately before the predetermined angle position and does not reversely bend, but between the minute closing angle that reaches the predetermined angle position immediately before the predetermined angle position. The door side plate releases the locking pin to enable the rotation of the intermediate plate in the closing direction. As a result, the door is closed in a state where the door side plate and the intermediate plate overlap from a predetermined angle position.

  However, in the above configuration, since the locking pin's vertical movement operation is adopted as a mechanism to prevent the reverse bending phenomenon of the intermediate plate, when the door side plate is closed, the locking pin tip is pushed in the vertical direction by the horizontal rotation of the door side plate. This operation requires a sinking action, and this action inevitably increases the tendency of the locking pin to fall in the lateral direction, which is not perfect in terms of certainty, and the thickness of the frame base plate for assembling the locking pin that moves up and down The point that needs to be increased is an improvement. Another problem remains that the structure is difficult to obtain strength because a large arc-shaped long hole is provided in the intermediate plate that receives the load of the door most when opened.

The present invention has been made to solve the above-described problems. When the door is closed, the hinge device is configured so that the entire hinge device is completely flush with the door surface, and can be opened and closed by 180 °. The purpose of the present invention is to provide a hinge device that more reliably prevents a reverse folding phenomenon, which is a malfunction, and is excellent in strength and compactness.
2-11983 5-71382 JP 2002-250171 A

  The first configuration consists of a frame-side base plate, an intermediate plate, a door-side plate, a first rotating shaft, and a second rotating shaft, with the frame-side base plate and the intermediate plate arranged within the door thickness. The intermediate plate and the door-side plate are rotatably connected by a second rotary shaft disposed closer to the door end than the first rotary shaft. Then, a first arc-shaped elongated hole having a bent portion at the end and a second arc-shaped elongated hole having a wide portion at the end are formed on a circular track centering on the first rotation axis on the frame-side base plate surface. Then, the first locking pin and the second locking pin are inserted into both arc-shaped elongated holes.

  The first arc-shaped slot and the second arc-shaped slot are arranged at different radii on the circular orbit about the first rotation axis of the frame-side base plate, have the same predetermined opening angle, and are bent. A part or a wide part is formed so as to be on the door end side. Further, the intermediate plate is provided with a first locking pin insertion slot and a second locking pin insertion slot, the door side plate is provided with a U-shaped groove and an engagement recess, and the first locking pin has a first arc shape. A long hole and a first locking pin insertion long hole are disposed in the U-shaped groove, a second locking pin is disposed in the engagement recess through the second arc-shaped long hole and the second locking pin insertion long hole, and A spring member is attached to the intersection of the first arc-shaped elongated hole and the bent portion.

  When the door is closed, the frame side base plate, the intermediate plate and the door side plate are completely overlapped, and the side surfaces of the frame side base plate, the intermediate plate and the door side plate are flush with the door surface. The one locking pin and the second locking pin are located at the suspension side end portions of the first arc-shaped elongated hole and the second arc-shaped elongated hole. When the door is opened from this state, the door-side plate tries to rotate around either the first rotation shaft or the second rotation shaft, but the second locking pin is in a state of being fitted in the engagement recess. Therefore, it cannot rotate around the second rotation axis, and as a result, the door side plate rotates around the first rotation axis together with the intermediate plate while pushing the second locking pin. The pin moves in the second arc-shaped slot, and at the same time, the first locking pin also moves in the first arc-shaped slot. In other words, the intermediate plate and the door side plate remain overlapped, and both locking pins rotate around the first rotation axis to a predetermined angular position where they touch the intersections of both arc-shaped elongated holes and the bent portion or the wide portion. Will do.

  Next, when the door rotates to a predetermined angular position, the intermediate plate stops. At this position, when the intermediate plate and the door side plate are still completely overlapped, the first locking pin is the U-shape of the door side plate. Since it is in contact with the back of the groove, it is held at the intersection of the first arc-shaped elongated hole and the bent portion against the spring member. At this time, the second locking pin is the second arc-shaped elongated hole and It has moved to the intersection with the wide part.

  When the door is further opened from the above state, the intermediate plate cannot rotate any more, so the door side plate tries to rotate around the second rotation axis. At this time, since the second locking pin is arranged at the intersection of the second arc-shaped elongated hole and the wide portion, the engaging recess can move the second locking pin to the wide portion, and the door side Only the plate rotates about the second rotation axis, and the door can be rotated together with the door side plate from the predetermined angle position to 180 ° or more. In addition, at the initial stage of the rotation operation around the second rotation axis of the door side plate, the U-shaped groove back side is moved to obtain the operation that the first locking pin is inserted into the bent portion by the spring member, As a result, the intermediate plate can be prevented from rotating in the closing direction.

  Next, when the door is closed from a state where it is largely opened, the back side of the U-shaped groove of the door side plate is bent and comes into contact with the first locking pin located at the end of the bent portion immediately before returning to the predetermined angle position, and the first arc-shaped length The operation of pushing into the intersection with the hole is obtained. As a result, the intermediate plate can be rotated in the closing direction, and at the same time, the engagement recess moves the second locking pin to the second arc-shaped elongated hole so that the intermediate plate and the door side plate are completely overlapped. The operation of closing the door can be obtained.

  Next, another configuration will be described. This configuration also includes a frame-side base plate, an intermediate plate, a door-side plate, a first rotating shaft, and a second rotating shaft, the frame-side base plate and the intermediate plate serving as the first rotating shaft, and the intermediate plate and the door-side plate serving as the second rotating shaft. It is the same to connect in a freely rotatable manner. Here, in this other configuration, a second arc-shaped long hole having a wide portion is provided on a circular orbit centering on the first rotation axis of the frame-side base plate. Also, a propeller-like interlocking arm with a first locking pin and a second locking pin attached to both ends is provided, and the interlocking arm is connected to the intermediate plate having the first locking pin insertion slot with the rotating shaft for the interlocking arm. The two locking pins are rotatably mounted in such a manner that the first locking pins protrude in the frame side base plate direction and the first locking pins in the door side plate direction. In addition, a first arc-shaped elongated hole having a bent portion is provided on a circular track around the second rotation axis of the door side plate. That is, the second locking pin is inserted into the second arc-shaped elongated hole of the frame-side base plate, and the first locking pin passes through the first locking pin insertion elongated hole of the intermediate plate and the first arc-shaped elongated hole of the door-side plate. Will be inserted.

  When the door is closed, the frame side base plate, the intermediate plate, and the door side plate are overlapped as in the first configuration, and the second locking pin is located at the suspension side end of the second arc-shaped elongated hole. And the 1st locking pin is comprised so that it may be located in the bending part edge part of a 1st circular arc-shaped long hole. At this time, the bent portion of the door side plate and the first locking pin insertion slot of the intermediate plate are set so as to have a certain inclination angle. When the door is opened from this closed state, the door-side plate tries to rotate around either the first rotation axis or the second rotation axis, but the second locking pin is inserted into the second arc-shaped slot. Because the interlocking arm does not move relative to the intermediate plate, the first locking pin is located at the end of the bent part, so the bent part of the door side plate is the first locking pin of the interlocking arm. Therefore, the intermediate plate including the interlocking arm and the door side plate are rotated with the first rotation axis as a center.

  Further, since the second locking pin comes into contact with the intersecting portion of the second arc-shaped elongated hole and the wide portion at a predetermined angular position, the intermediate plate stops. If the door is further opened from this stage, the intermediate plate cannot rotate any further, so the door side plate tries to rotate around the second rotation axis, and the first locking pin is pushed into the bent part with the inclination angle of the door side plate. In addition, while moving in the bent portion, it also moves in the first locking pin insertion slot in the intermediate plate. The movement of the first locking pin is the rotation of the interlocking arm. When the first locking pin reaches the intersection of the bent part and the first arc-shaped elongated hole, the second rotation shaft of the door side plate is moved. The rotation operation around the center becomes possible, and the door can be greatly opened as it is. Moreover, the second locking pin is simultaneously inserted into the wide portion by the rotating operation of the interlocking arm, and the rotating operation in the closing direction of the intermediate plate can be prevented.

  When the door is closed from a state where it is largely open, the intersection of the first arc-shaped elongated hole and the bent portion comes into contact with the first locking pin immediately before the door-side plate returns to the predetermined angle position, and the inclination angle of the bent portion The first locking pin is pushed by this, the interlocking arm rotates, the intermediate plate and the door side plate overlap, and at the same time the second locking pin moves from the wide part to the second arcuate slot, The operation in the closing direction around one rotation axis is possible, and the door can be completely closed as it is.

  Next, means for hanging the door on the frame will be described. Here, an upper hinge device constituted by a frame side base plate, an intermediate plate, and a door side plate, and a lower hinge device arranged in the upside down manner in the same configuration are used as one set of hinge devices. Further, the suspension means can be similarly used in either the first configuration or another configuration described above. First, the frame-side base plate and the intermediate plate are assembled in advance with the first rotating shaft, and are mounted so as to face the vertical position on the suspension base side of the frame body. Also, only the door side plate is separated and attached to the upper and lower suspension side of the door. At this time, the second rotating shaft of the lower hinge device is preferably fixed to the intermediate plate, and the second rotating shaft of the upper hinge device is configured to be detachable. In other words, the second rotation shaft insertion hole is provided in the door side plate of the lower hinge device, and the second rotation shaft insertion hole is provided in both the intermediate plate and the door side plate in the upper hinge device so that the second rotation shaft can be attached and detached. Configure it to

  Next, only the intermediate plate is rotated to a predetermined angular position with respect to the frame side base plate, and the door with the door side plate is inserted between both intermediate plates in a state where the door is opened larger than the predetermined angular position. The second rotary shaft insertion hole of the door side plate is fitted into the second rotary shaft of the intermediate plate of the apparatus. While raising the door, align the second rotary shaft insertion hole of the intermediate plate of the upper hinge device and the second rotary shaft insertion hole of the door side plate, insert the second rotary shaft into both, and then pull out the second rotary shaft. Hold the door securely and hang the door securely.

  Other suspension means may be used. The frame side base plate and the intermediate plate are assembled with the first rotating shaft in advance and mounted on the top and bottom of the frame body, and only the door side plate is separated and mounted on the top and bottom of the door. Is the same, this time the second rotation shaft insertion hole of either the intermediate plate or door side plate of the upper hinge device is changed to a U-shaped second rotation shaft insertion groove, and the other is the second rotation A means may be provided in which a shaft is mounted, the second rotating shaft is fitted into the second rotating shaft insertion groove together with the door from the lateral direction, and then the cover member is covered and fixed so as not to come off.

  By configuring as described above, the door can be opened 180 °, and when the entire hinge device is disposed within the thickness of the door and the door is closed, the side surface of the hinge device is flush with the door surface. It is possible to provide a hinge device that is excellent in design, can improve safety because the shaft core portion does not protrude from the door surface, and can easily dig in the frame for mounting and the door.

  A configuration in which the first locking pin and the second locking pin are moved in the horizontal direction by the rotation operation around the second rotation axis in the vicinity of the predetermined angular position of the door side plate to restrict or release the rotation operation of the intermediate plate. Therefore, the reverse folding phenomenon of the intermediate plate can be reliably prevented not only in the operation of opening the door but also in the closing operation, and a smoother opening / closing operation can be obtained. In addition, since the operation of both locking pins is horizontal, the thickness of the entire hinge device can be set thinner, and in another configuration, even a spring member for regulating and releasing the operation of the intermediate plate is not necessary. can do.

  The structure that does not have large holes or long holes as much as possible in the intermediate plate that needs the most strength to support the weight of the door, so that it can realize a structure with relatively high load resistance and can be used well for heavy doors etc. can do.

  The hinge device is divided into a structure in which the frame side base plate and the intermediate plate are connected by the first rotating shaft and the door side plate, and the frame side base plate and the intermediate plate are mounted on the frame body in advance and the door side plate is mounted on the door. Thus, it is possible to perform an easy suspending operation in which the door with the door-side plate attached is inserted between the intermediate plates and the intermediate plate and the door-side plate are connected by the second rotating shaft.

  Embodiments relating to the hinge device of the present invention will be described below with reference to the drawings. 1 to 8 show a first embodiment of the present invention, and FIG. 1 is an exploded perspective view. FIG. 2 is a front view of the hinge device of the present invention in a closed state in which the hinge device is attached to the door 25 and the frame body 26. The upper hinge device a and the lower hinge device b constitute a set of hinge devices, and the arrangement is vertically The state is reversed. Here, FIG. 1 shows the lower hinge device b in a state in which the door 25 is closed. The upper hinge device a and the lower hinge device b have slightly different parts depending on the suspension means, but the basic configuration is shown. The operation of each member is almost the same. As shown in FIG. 2, the frame-side base plate 1 is attached to the frame body 26, and the door-side plate 3 is attached to the door 25.

  In the first embodiment, as shown in FIG. 1, a frame-side base plate 1, an intermediate plate 2, and a door-side plate 3 that are both plate-like and have a flat surface portion are provided, The one rotation shaft 4 is mounted, the first rotation shaft insertion hole 13 and the second rotation shaft 5 are provided in the intermediate plate 2, and the second rotation shaft insertion hole 14 is provided in the door side plate 3. Next, the frame side base plate 1 and the intermediate plate 2 are rotatably connected by the first rotary shaft 4, and the intermediate plate 2 and the door side plate 3 are arranged on the door end side from the first rotary shaft 4. 5 is rotatably connected. Therefore, the intermediate plate 2 rotates about the first rotation shaft 4 with respect to the frame side base plate 1, and the door side plate 3 rotates about the second rotation shaft 5 with respect to the intermediate plate 2. Here, as shown in FIG. 1, the frame-side base plate 1 is mounted at a position where the side surface is flush with the door 25, and the door-side plate 3 is also mounted so that the side surface is flush with the door 25. Similarly, the hinge device is formed by connecting both sides of the door 25 so that the side faces are flush with the door 25.

  3 shows a plan view of the frame side base plate 1, FIG. 4 shows a plan view of the intermediate plate 2, and FIG. 5 shows a plan view of the door side plate 3. FIG. 6 shows the frame side base plate 1, the intermediate plate 2, and the door side plate 3. FIG. 3 is a plan view showing a state in which the first and second locking shafts 10 and 11 are further connected by the first rotating shaft 4 and the second rotating shaft 5. Therefore, FIG. 6 shows a state in which the door 25 is closed.

  The frame side base plate 1 is plate-shaped, and as shown in FIG. 3, the first rotating shaft 4 is mounted on the front side of the suspension side, and the first arc-shaped elongated hole 6 having the bent portion 8 at the end and the end The second arcuate long hole 7 having a wide portion 9 is formed on a circular orbit having different radii about the first rotation shaft 4 on the surface of the frame base plate 1. Both the first arc-shaped elongated hole 6 and the second arc-shaped elongated hole 7 have the same predetermined opening angle, and are formed so that the bent portion 8 or the wide portion 9 is in the direction of the door. In addition, the bottom portion around the first arc-shaped elongated hole 6 and the second arc-shaped elongated hole 7 is stealed, and a spring member 12 is mounted at the intersection of the first arc-shaped elongated hole 6 and the bent portion 8. Keep it.

  The intermediate plate 2 is also plate-shaped as shown in FIG. 4, has a first rotating shaft insertion hole 13 and a second rotating shaft 5, and further has a first locking pin insertion slot 15 and a second locking pin inserted. An oblong hole 16 is provided. The first locking pin insertion slot 15 and the second locking pin insertion slot 16 are the first arcuate slot when the frame side base plate 1 and the intermediate plate 2 shown in FIG. 6 and the second arc-shaped elongated hole 7 are arranged at positions facing the suspension side end, and the shape of the intermediate plate 2 is the first arc-shaped elongated hole 6 and the second arc-shaped centered on the first rotating shaft 4. When the long hole 7 is rotated by a predetermined opening angle, the first locking pin insertion long hole 15 and the second locking pin insertion long hole 16 are completely overlapped with the wide part 9, respectively. To form.

  As shown in FIG. 5, the door-side plate 3 is also plate-shaped, has a second rotary shaft insertion hole 14, is provided with a U-shaped groove 17 at the front side of the suspension base, and is further on the back position suspension base side. An engaging recess 19 and a circular arc side 20 continuous therewith are provided. The U-shaped groove 17 has an arc shape centered on the second rotary shaft insertion hole 14, and its rear side end portion is a U-shaped groove rear side 18, and the frame side base plate 1, the intermediate plate 2, and the door side shown in FIG. 6. In a state where the plates 3 are superposed, the rear side of the suspension base side end portion of the first arc-shaped elongated hole 6 and the U-shaped groove rear side 18 are arranged at the same position. Similarly, the engaging concave portion 19 is arranged so as to be in the same position as the front side of the suspension-side end portion of the second arc-shaped elongated hole 7 in a state where the hinges are overlapped, and the arc side 20 is the second rotating shaft. On the circular orbit centered at 5, the radius is set to be slightly larger than the distance connecting the most recessed position of the engaging recess 19 and the center of the second rotating shaft 5.

  Next, as shown in FIG. 6, the first locking pin 10 is at the suspension-side end of the first arc-shaped long hole 6, and the second locking pin 11 is at the suspension-side end of the second arc-shaped long hole 7. To place. FIG. 7 shows a cross section taken along the line AA ′ of FIG. 6. The upper end of the first locking pin 10 having the collar portion is passed through the first arc-shaped elongated hole 6 and the first locking pin insertion elongated hole 15. Insert in contact with the U-shaped groove back side 18. At this time, it is mounted so that the thickness portion of the intermediate plate 2 is sandwiched between the collar portion and the retaining member such as an E-ring, and can move only along the first arc-shaped elongated hole 6 while maintaining the standing state. Keep it. The top end of the first locking pin 10 is set up to about the top surface of the door-side plate 3, and the bottom end is set so that it slightly floats from the bottom surface of the frame-side base plate 1. When the arc-shaped long hole 6 and the bent portion 8 are moved to the intersecting position, the spring member 12 biases the bent portion 8 to the inner position.

  Similarly, the second locking pin 11 having a collar portion is inserted through the second arc-shaped long hole 7 and the second locking pin insertion long hole 16 so that the upper end reaches the upper surface of the door side plate 3. At this time, it is set so that the tip of the second locking pin 11 is positioned in the engaging recess 19. The second locking pin 11 is mounted so that the bottom surface of the frame side base plate 1 and the upper surface of the intermediate plate 2 are sandwiched between the collar portion and the washer 21, and the second arc-shaped elongated hole 7 is similarly held while standing up and down. It is possible to move only along the horizontal direction. Further, when the door 25 is opened by taking measures such as holding the frame side base plate 1 and the intermediate plate 2 at a certain distance with the collar portion and the washer 21 so that the intermediate plate 2 does not come out upward. Is received by the second locking pin 11. Further, a resin ring having good wear resistance or the like may be appropriately fitted between the first locking pin 10 and the second locking pin 11 between the plates.

  In FIG. 1, the first rotation shaft 4 of the frame side base plate 1 and the first rotation shaft insertion hole 13 of the intermediate plate 2 are shown so that they can be inserted and removed. However, as shown in FIG. The frame side base plate 1 and the intermediate plate 2 may be sandwiched and crimped between the collar portion and the washer 21 in a shape having a portion.

  Next, the opening / closing operation | movement of the hinge apparatus in 1st embodiment of this invention is demonstrated in FIG. FIG. 8A shows a state in which the door 25 is completely closed. The frame side base plate 1, the intermediate plate 2, and the door side plate 3 are completely overlapped, and the side surfaces of the respective plates are flush with the door 25. Yes. Further, the first locking pin 10 and the second locking pin 11 are located at the suspension side end portions of the first arc-shaped elongated hole 6 and the second arc-shaped elongated hole 7. When the door 25 is opened from this state, the door side plate 3 fixed to the door 25 rotates around either the first rotating shaft 4 or the second rotating shaft 5. However, as shown in FIG. 8A, the second locking pin 11 is located in the engaging recess 19 that is further recessed than the arc side 20 of the door side plate 3, and the second arc shape of the frame side base plate 1. Since it is inserted into the long hole 7, the door side plate 3 cannot rotate around the second rotation shaft 5.

  Therefore, the opening operation from FIG. 8A is an operation in which the door-side plate 3 rotates around the first rotation shaft 4 while pushing the second locking pin 11, and the second locking pin 11 has a second arc shape. It moves in the long hole 7. At this time, since the second locking pin 11 passes through the second locking pin insertion slot 16 of the intermediate plate 2, the intermediate plate 2 also rotates around the first rotation shaft 4 at the same time.

  Further, in the state of FIG. 8A, the first locking pin 10 passes through the end position of the first arc-shaped long hole 6 and the first locking pin insertion long hole 15 of the intermediate plate 2, and the door side plate 3. The U-shaped groove rear side 18 is in contact with the U-shaped groove and is moved along the first arc-shaped long hole 6 by being similarly pushed by the intermediate plate 2 by the above operation. Then, the first locking pin 10 and the second locking pin 11 shown in FIG. 8B are crossed between the first arc-shaped elongated hole 6 and the bent portion 8, the second arc-shaped elongated hole 7 and the wide portion 9. The intermediate plate 2 stops at a position where it abuts the crossing portion. The state where the intermediate plate 2 and the door side plate 3 are rotated to the position shown in FIG. 8B and the intermediate plate 2 and the door side plate 3 are still completely overlapped is defined as a predetermined angular position of the door 25.

  In the stage of FIG. 8B, the bent portion 8 and the first locking pin insertion long hole 15 are arranged so as to completely overlap, but the first locking pin 10 is formed on the door side plate 3. Since it is in contact with the U-shaped groove back side 18 and cannot move to the bent portion 8 side, the spring member 12 is kept compressed. Further, in the state of FIG. 8B, the second locking pin 11 has already moved to the intersection of the second arc-shaped long hole 7 and the wide portion 9, and the second locking pin insertion long hole 16 has Since it has the same shape as the wide portion 9, the second locking pin 11 can move to the wide portion 9.

  If the door 25 is further rotated in the direction in which the door 25 is opened from the state shown in FIG. 8B, the intermediate plate 2 cannot be rotated any further. Here, if the step between the engaging recess 19 and the arc side 20 of the door side plate 3 is set to be much smaller than the radius of the second locking pin 11, the arc side 20 becomes the first as shown in FIG. Along with the operation of pushing the two locking pins 11 into the wide portion 9, the door side plate 3 can be rotated around the second rotation shaft 5. Therefore, it is preferable to set the arc side 20 at a position where it does not come into contact with the second locking pin 11 moved to the end of the wide portion 9. Further, at the initial stage of the rotation operation around the door 25 and the second rotation shaft 5 of the door side plate 3 from the predetermined angle position, the U-shaped groove rear side 18 of the door side plate 3 also rotates and moves, so that FIG. As shown in (c), the first locking pin 10 is urged by the spring member 12 and inserted into the bent portion 8, and as a result, the intermediate plate 2 can be prevented from rotating in the closing direction. That is, this operation is a mechanism for preventing the reverse bending phenomenon of the intermediate plate 2. As shown in FIG. 8D, the door 25 together with the door-side plate 3 can be rotated from the predetermined angle position to 180 ° or more.

  Further, in the state of FIG. 8D, the load on the door 25 is applied downward, so that the second locking pin 11 of the intermediate plate 2 is lifted with the first rotating shaft 4 as a fulcrum. Therefore, as shown in FIG. 7, if a collar portion is provided on the upper portion of the second locking pin 11 and caulked with a washer 21 at the bottom surface position of the frame side base plate 1, the load of the door 25 is received by the second locking pin 11. It becomes possible to prevent the door tip position of the door 25 from hanging down.

  When the door 25 is closed from the state shown in FIG. 8D, the door 25 rotates about the second rotation shaft 5 and immediately before returning to the predetermined angular position shown in FIG. The U-shaped groove back side 18 is bent and comes into contact with the first locking pin 10 located at the end of the bent portion 8. When the door 25 is further closed, the first locking pin 10 is pushed to the intersection of the first arc-shaped elongated hole 6 and the bent portion 8 by the predetermined angular position shown in FIG. As a result, as shown in FIG. 8B, the intermediate plate 2 and the door side plate 3 are completely overlapped, and at the same time, the intermediate plate 2 can be rotated in the closing direction. Simultaneously with the above operation, the engaging recess 19 of the door side plate 3 pushes the second locking pin 11 to move to the second arcuate elongated hole 7, and the first locking pin insertion elongated hole 15 of the intermediate plate 2 and The first locking pin 10 and the second locking pin 11 are moved along the first arc-shaped long hole 6 and the second arc-shaped long hole 7 by being pushed by the second locking pin insertion long hole 16. It returns to the closed state of 8 (a). Therefore, the step of the continuous portion between the second arc-shaped elongated hole 7 and the wide portion 9 is preferably set to be much smaller than the radius of the second locking pin 11.

  Next, 2nd embodiment of the hinge apparatus of this invention is described based on FIGS. FIG. 9 is an exploded perspective view of the lower hinge device b of the second embodiment. In the second embodiment as well, the frame-side base plate 1, the intermediate plate 2, the door-side plate 3, the first rotating shaft 4, and the second rotating shaft 5 are used. It is the same that the frame side base plate 1 and the intermediate plate 2 are rotatably connected by the first rotating shaft 4, and the intermediate plate 2 and the door side plate 3 are rotatably connected by the second rotating shaft 5. FIG. 10 is a plan view of the frame-side base plate 1, and a second arc-shaped long hole 7 having a wide portion 9 at the end is provided on a circular orbit centered on the first rotation shaft 4. Further, a propeller-like interlocking arm 22 for mounting the first locking pin 10 and the second locking pin 11 is provided at both ends as shown in FIG. 11, and further, a long hole for inserting the first locking pin as shown in FIG. The intermediate locking plate 22 has the interlocking arm 22 and the interlocking arm rotating shaft 23, the second locking pin 11 faces downward, that is, the frame side base plate 1 side, and the first locking pin 10 faces upward, that is, the door side plate. It is mounted so as to be rotatable in an arrangement that projects to the 3 side. FIG. 13 is a plan view of the door-side plate 3, and a first arc-shaped elongated hole 6 having a bent portion 8 at the end is provided on a circular track centering on the second rotation shaft insertion hole 14.

  Here, in the opening and closing operation, the second locking pin 11 is inserted into the second arc-shaped elongated hole 7 of the frame-side base plate 1 with the hinges overlapped as described above, and the first locking pin 10 is the middle. It is important that the first locking pin insertion slot 15 of the plate 2 is inserted into the first arc-shaped slot 6 of the door side plate 3. However, as in the first embodiment, it is necessary to provide the second locking pin 11 with a role of receiving the load of the door 25 at the time of opening, and there is a collar below the second locking pin 11 as shown in FIG. A portion may be provided, and the upper part may be passed through the interlocking arm 22 and the intermediate plate 2, and may be fixed by caulking with a washer 21 or the like on the upper surface of the intermediate plate 2 while maintaining a movable state together with the interlocking arm 22.

  Next, the opening / closing operation | movement of the hinge apparatus in 2nd embodiment is demonstrated based on FIG. In the second embodiment, when the door 25 is closed, the plates are completely overlapped as shown in FIG. 14A, and the appearance is almost the same as FIG. Here, as a feature of the second embodiment, the point that the first locking pin 10 and the second locking pin 11 are connected by the interlocking arm 22 and the point that the spring member 12 is excluded are important. In the state of FIG. 14A, the second locking pin 11 is positioned at the end of the second arcuate elongated hole 7 and the first locking pin 10 has the first locking pin insertion slot 15. It penetrates and is constituted so that it may be located in the bent part 8 end of the 1st circular arc-like long hole 6. The bent portion 8 and the first locking pin insertion slot 15 of the intermediate plate 2 are set so as to have a constant inclination angle.

  When the door 25 is opened from the above state, it tries to rotate around either the first rotating shaft 4 or the second rotating shaft 5. Since the interlocking arm 22 cannot be rotated with respect to the intermediate plate 2 because it is located at the end portion, and therefore the first locking pin 10 cannot be moved from the end of the bent portion 8, the door side plate 3 can be As a result, the bent portion 8 of the door side plate 3 pulls the first locking pin 10 of the interlocking arm 22. Further, since the first locking pin 10 passes through the first locking pin insertion slot 15 of the intermediate plate 2, the intermediate plate 2 including the interlocking arm 22 and the door side plate 3 are overlapped with each other as shown in FIG. As shown in FIG. 14B, the second rotating pin 11 is rotated between the second arcuate long hole 7 and the wide portion 9 at a predetermined angular position in FIG. The intermediate plate 2 stops at the intersection.

  If the door 25 is further opened from the state shown in FIG. 14C, the intermediate plate 2 cannot rotate any further, so the door side plate 3 tries to rotate around the second rotation shaft 5. Here, the interlocking arm 22 has moved together with the intermediate plate 2 at the predetermined angular position shown in FIG. 14 (c), and the second locking pin 11 has already been positioned at the intersection of the second arcuate elongated hole 7 and the wide portion 9. doing. Therefore, the interlocking arm 22 is in a state of being rotatable within the range in which the second locking pin 11 moves within the wide portion 9. At this time, since the first locking pin insertion slot 15 and the bent portion 8 overlap each other and have an inclination angle, when the door side plate 3 tries to further rotate around the second rotation shaft 5, the bent portion 8 pushes the first locking pin 10, and the interlocking arm 22 rotates as shown in FIG. 14 (d), so that the first locking pin 10 and the bent portion 8 shown in FIG. It moves to the intersection with the hole 6.

  Then, the rotation operation around the second rotation shaft 5 of the door side plate 3 in which the first arc-shaped elongated hole 6 continues to move along the first locking pin 10 becomes possible, as shown in FIG. Thus, the door 25 can be greatly opened as it is. Further, as shown in FIG. 14 (e), if the second locking pin 11 is set to be inserted into the wide portion 9 simultaneously with the rotation of the interlocking arm 22, the rotation of the intermediate plate 2 in the closing direction is performed. The operation can be prevented, and the reverse folding of the intermediate plate 2 can be prevented.

  Summarizing the above overall operation, the interlocking arm 22 does not move with respect to the intermediate plate 2 from FIGS. 14A to 14C, and the second locking pin 11 has the second arc-shaped elongated hole 7. And the intermediate plate 2 and the door side plate 3 are rotated with the first rotating shaft 4 as a center, and the interlocking arm 22 rotates between FIGS. The locking pin 11 is moved to the wide portion 9 and the first locking pin 10 is moved to the first arcuate elongated hole 6 to switch the guide operation. In FIGS. The interlocking arm 22 does not move relative to the plate 2, and the first locking pin 10 is guided by the first arc-shaped elongated hole 6 and only the door 25 side plate 3 rotates further about the second rotation shaft 5. become. In the above description, the operation is partially divided, but these operations are not temporarily stopped in the middle, and can be performed as a series of smooth opening operations.

  Next, when the door 25 is closed from the largely opened state shown in FIG. 14 (f), the first arc-shaped elongated hole 6 and the bent portion are in the stage of FIG. 14 (e) just before the door side plate 3 returns to the predetermined angular position. 8 is brought into contact with the first locking pin 10, the first locking pin 10 is pushed by the inclination angle of the bent portion 8, the interlocking arm 22 is rotated, and the door side plate 3 is moved as shown in FIG. The second locking pin 11 moves from the wide portion 9 to the second arc-shaped elongated hole 7 and returns to the closing direction around the first rotating shaft 4 of the intermediate plate 2 when it returns to the predetermined angular position. The door 25 can be completely closed at the same time as the intermediate plate 2 and the door side plate 3 overlap.

  Next, means for hanging the door 25 on the frame 26 will be described with reference to FIGS. 15 and 16 are both represented by the upper hinge device a having the configuration of the first embodiment, but these suspending means can be exactly the same in the configuration of the second embodiment. First, the frame side base plate 1 and the intermediate plate 2 of the upper hinge device a and the lower hinge device b are connected by the first rotating shaft 4, and mechanism members such as the first locking pin 10 and the second locking pin 11 are also assembled. In addition, the frame body 26 is mounted in an arrangement facing the vertical position on the suspension base side. Moreover, it mounts | wears with the up-and-down both suspension origin side of the door 25 in the state which isolate | separated only the door side plate 3. FIG.

  As the operation of hanging the door 25, as shown in FIGS. 1 and 9, the second rotary shaft 5 is mounted on the intermediate plate 2 of the lower hinge device b, and the door 25 is fitted between the upper and lower intermediate plates 2. The second rotary shaft insertion hole 14 of the door side plate 3 mounted on the lower portion of the door 25 is inserted into the second rotary shaft 5 of the lower hinge device b, and the door 25 is raised to raise the intermediate plate 2 of the upper hinge device a. And the door side plate 3 mounted on the upper portion of the door 25 may be coupled. The connection means between the intermediate plate 2 and the door side plate 3 of the upper hinge device a will be described next with reference to FIGS.

  First, a second rotating shaft 5 having a collar portion as shown in FIG. 15, the root being a male screw portion, and a tip portion being formed as an axis is provided. Next, a second rotating shaft insertion hole 14 is provided in the intermediate plate 2 of the upper hinge device a, and a female screw portion is provided in this hole. Further, a second rotation shaft insertion hole 14 is provided in the door side plate 3 mounted on the upper portion of the door 25 so that the shaft core portion of the second rotation shaft 5 can be barely inserted. Next, both the intermediate plates 2 are rotated to a predetermined angular position with respect to the upper and lower frame side base plates 1, and both the intermediate plates 2 are opened with the door 25 having the door-side plate 3 mounted wider than the predetermined angular position. The second rotation shaft insertion hole 14 of the door side plate 3 below the door 25 is fitted into the second rotation shaft 5 of the intermediate plate 2 of the lower hinge device b. Then, the door 25 is raised and the second rotary shaft insertion hole 14 of the intermediate plate 2 of the upper hinge device a is aligned with the second rotary shaft insertion hole 14 of the door side plate 3, and the second rotary shaft 5 is moved from the upper side to the both. The door 25 is suspended from the frame body 26 by screwing the male screw portion of the second rotating shaft 5 into the female screw portion of the intermediate plate 2.

  Therefore, it is preferable to provide a cross hole or a hexagonal hole on the upper surface of the collar portion of the second rotating shaft 5 or to make the collar portion itself a hexagonal shape so that it can be rotated with a spanner or the like. Further, at this time, the shaft 25 rotates together with the door 25 at the tip of the second rotary shaft 5, and a bush of resin or the like having good wear performance is provided at the contact portion of the door side plate 3 with the second rotary shaft insertion hole 14. Fit it. The means for holding the second rotary shaft 5 so that it does not rotate or come out is not limited to the above-described screw system, and any means such as a means for separately fixing the shaft core portion with a set screw from the lateral direction. Various configurations may be used.

  Further, as shown in FIG. 16, a U-shaped second rotary shaft insertion groove 24 is provided in the intermediate plate 2 of the upper hinge device a, the second rotary shaft 5 is mounted on the upper door side plate 3, and the lower hinge After connecting the apparatus b, a means for fitting the second rotary shaft 5 together with the door 25 into the second rotary shaft insertion groove 24 from the lateral direction and covering the lid member so as not to be removed may be used. Further, a reverse configuration in which the second rotary shaft insertion groove 24 is provided in the upper door side plate 3 and the second rotary shaft 5 is mounted on the intermediate plate 2 is also possible. Therefore, the suspension means shown in FIG. 16 does not need to rotate the upper and lower intermediate plates 2 in advance as preparations like the means of FIG. That is, although the hinge device of the present invention is composed of the frame side base plate 1, the intermediate plate 2, and the door side plate 3, the hanging device is mounted on the upper and lower surfaces of the door 25 with only the door side plate 3 divided. It is characterized by the fact that the door side plate 3 mounted on the door 25 is fitted between the upper and lower intermediate plates 2 and then connected by simple means so that it can be suspended by an easy operation. be able to.

It is a disassembled perspective view of 1st embodiment of the hinge apparatus of this invention. It is the accommodation front view with which the hinge apparatus of this invention was mounted | worn with the frame and the door. It is a top view of the frame side base plate of 1st embodiment of the hinge apparatus of this invention. It is a top view of the intermediate plate of 1st embodiment of the hinge apparatus of this invention. It is a top view of the door side plate of 1st embodiment of the hinge apparatus of this invention. It is an assembly top view of a first embodiment of the hinge device of the present invention. It is A-A 'sectional drawing of FIG. 6 of the hinge apparatus of this invention. It is a top view which shows the opening-and-closing locus | trajectory of 1st embodiment in order of the hinge apparatus of this invention. It is a disassembled perspective view of 2nd embodiment of the hinge apparatus of this invention. It is a top view of the frame side base plate of 2nd embodiment of the hinge apparatus of this invention. It is a top view of the interlocking | linkage arm of 2nd embodiment of the hinge apparatus of this invention. It is a top view of the intermediate | middle plate containing the interlocking | linkage arm of 2nd embodiment of the hinge apparatus of this invention. It is a top view of the door side plate of 2nd embodiment of the hinge apparatus of this invention. It is a top view which shows the opening-and-closing locus | trajectory of 2nd embodiment in order of the hinge apparatus of this invention. It is a perspective view which shows the hanging means of a door of the hinge apparatus of this invention. It is another perspective view which shows the suspension means of the door of the hinge apparatus of this invention.

Explanation of symbols

a upper hinge device b lower hinge device 1 frame side base plate 2 intermediate plate 3 door side plate 4 first rotating shaft 5 second rotating shaft 6 first arc-shaped elongated hole 7 second arc-shaped elongated hole 8 bent portion 9 wide portion 10 First locking pin 11 Second locking pin 12 Spring member 13 First rotation shaft insertion hole 14 Second rotation shaft insertion hole 15 First locking pin insertion long hole 16 Second locking pin insertion long hole 17 U Shaped groove 18 U-shaped groove back side 19 Engaging recess 20 Arc side 21 Washer 22 Interlocking arm 23 Interlocking arm rotating shaft 24 Second rotating shaft insertion groove 25 Door 26 Frame

Claims (10)

A hinge device that opens and closes a door by providing an intermediate plate between a frame side base plate and a door side plate and rotating each plate in a horizontal direction around the rotation axis by a plurality of rotation shafts. The side base plate and the intermediate plate are rotatably connected by a first rotating shaft disposed within the thickness of the door, the intermediate plate and the door side plate are rotatably connected by a second rotating shaft, and a bent portion or An arc-shaped long hole having a wide portion is formed on a circular orbit around the first rotation axis or the second rotation axis on any plate surface, and the locking pin is passed through the intermediate plate or the door side plate. In this state, the locking pin moves horizontally between the arc-shaped slot and the bent part or wide part by opening and closing the door. Hinge device characterized by the operation that was made possible regulations. A first arc-shaped elongated hole and a second arc-shaped elongated hole having a predetermined opening angle are provided at positions of different radii on a circular orbit around the first rotation axis of the frame-side base plate, and the first arc-shaped A bent portion is continuously formed at the end of the long hole, a wide portion is continuously formed at the end of the second arc-shaped long hole, and the first engaging pin insertion long hole and the second engagement are formed on the intermediate plate. A long hole for inserting a stop pin is provided, a U-shaped groove and an engagement recess are provided on the door side plate, and the first locking pin is inserted into the U-shaped groove through the first arc-shaped long hole and the first locking pin insertion long hole. The second locking pin is disposed in the engaging recess through the second arc-shaped elongated hole and the second locking pin insertion elongated hole, and a spring is formed at the intersection of the first arc-shaped elongated hole and the bent portion. The hinge device according to claim 1, further comprising a member. When the door is closed, the frame side base plate, the intermediate plate, and the door side plate are overlapped and the side surface is flush with the door surface. The first locking pin and the second locking pin are It is located at the end of the second arc-shaped elongated hole on the suspension base side. When the door is opened, the door-side plate and the intermediate plate rotate around the first rotation axis with the second locking pin engaged. It moves in the second arc-shaped elongated hole in the state of being fitted in the joint recess, and at the same time, the first locking pin moves in the first arc-shaped elongated hole, and both the locking pins are bent with both arc-shaped elongated holes or The hinge device according to claim 1 or 2, wherein the intermediate plate stops at a predetermined angular position where it abuts on a crossing portion with the wide portion. In a state where the intermediate plate and the door side plate completely overlap at the predetermined angle position, the first locking pin is in contact with the U-shaped groove back side, so that the first arc-shaped elongated hole against the spring member The second locking pin is located at the intersection of the second arc-shaped elongated hole and the wide portion, and when the door is further opened, the engagement recess is engaged with the second engagement pin. Along with the operation to push the stop pin to the wide part, only the door side plate rotates around the second rotation axis, allowing the door to be opened further greatly, and at the same time the U-shaped groove depth moves and the first lock pin becomes a spring member The hinge device according to any one of claims 1 to 3, wherein the hinge device is urged to be inserted into a bent portion to prevent the rotation of the intermediate plate in the closing direction. When the door is closed from the largely open state, the back side of the U-shaped groove of the door-side plate bends immediately before returning to the predetermined angle position, and comes into contact with the first locking pin located at the end of the part, and the door is further moved to the predetermined angle position. The first locking pin is pushed into the intersection with the first arc-shaped elongated hole by the closing operation until the rotation of the intermediate plate in the closing direction around the first rotation axis, and at the same time the engagement The concave portion moves the second locking pin to the second arc-shaped elongated hole to obtain an operation of closing the door in a state where the intermediate plate and the door side plate are completely overlapped with each other. 2. A hinge device according to item 1. A propeller-like shape in which a second arc-shaped elongated hole having a wide portion is formed on a circular track around the first rotation axis of the frame-side base plate, and a first locking pin and a second locking pin are mounted on both ends. An interlocking arm is provided, and the interlocking arm is connected to the intermediate plate with the slot for inserting the first locking pin, the second locking pin is in the frame side base plate direction, and the first locking pin is on the door side. A door side that is mounted in a freely protruding manner in an arrangement that protrudes in the plate direction, has a first arc-shaped elongated hole on a circular track centered on the second rotation shaft insertion hole, and has a continuous bent portion at the end. A plate is provided, the second locking pin is inserted into the second arc-shaped elongated hole, and the first locking pin is inserted into the first arc-shaped elongated hole of the door side plate through the first locking pin insertion elongated hole of the intermediate plate. The hinge device according to claim 1, wherein the hinge device is inserted. When the door is closed, the frame side base plate, the intermediate plate, and the door side plate overlap, and the side surface is flush with the door surface, and the second locking pin is the end of the second arc-shaped elongated hole The first locking pin is located at the end of the bent portion of the first arc-shaped elongated hole, and when the door is opened, the bent portion of the door side plate pulls the first locking pin, and the second engaging pin Since the stop pin is regulated by the second arc-shaped elongated hole, the interlocking arm cannot move with respect to the intermediate plate, and as a result, the first rotating shaft in a state where the intermediate plate including the interlocking arm and the door side plate overlap. The intermediate plate stops at a predetermined angular position where the second locking pin abuts against the intersection of the second arc-shaped elongated hole and the wide portion. The hinge apparatus as described in. In a state where the intermediate plate and the door side plate are completely overlapped at the predetermined angle position, the bent portion and the first locking pin insertion long hole are set to have a certain inclination angle. The two locking pins have already moved to the intersection of the second arc-shaped elongated hole and the wide portion, and when the door is further opened, the first locking pin is pushed by the bent portion and the first locking pin insertion length It moves in the hole, and this operation becomes the rotation operation of the interlocking arm, the second locking pin also rotates at the same time, and the first locking pin is arranged at the intersection of the first arc-shaped elongated hole and the bent part The door-side plate can be rotated about the second rotation axis at the stage, and at the same time, the second locking pin is inserted into the wide portion to prevent the rotation of the intermediate plate in the closing direction. Item 1 or 6 or 7 Nji apparatus. When the door is closed from a largely opened state, the intersection of the first arc-shaped elongated hole and the bent portion comes into contact with the first locking pin immediately before returning to the predetermined angle position, and the door is further closed to the predetermined angle position. The angle of inclination of the bent portion pushes the first locking pin to rotate the interlocking arm, and the second locking pin moves from the wide portion to the second arcuate elongated hole to center on the first rotation axis of the intermediate plate 9. The hinge device according to claim 1, wherein the hinge device is capable of rotating in a closing direction, and obtains an operation of closing the door in a state where the intermediate plate and the door side plate overlap each other. The frame side base plate and the intermediate plate are assembled in advance with the first rotating shaft and mounted so that they face the vertical position on the suspension base side of the frame body. Installed, insert the door with the door side plate between the intermediate plates, and the second rotating shaft attached to one of the intermediate plate and the door side plate, the second provided on the other Means for inserting the rotary shaft insertion hole, or means for inserting the second rotary shaft in which the second rotary shaft insertion hole is provided in both the intermediate plate and the door side plate, and the second rotary shaft insertion hole can be inserted and removed simultaneously. Alternatively, the second rotating shaft is attached to either the intermediate plate or the door side plate, and a U-shaped second rotating shaft insertion groove is provided on the other side, and the second rotating shaft is rotated second from the lateral direction. After fitting into the shaft insertion groove Only by providing one of the means for applying a stop, the hinge device according to claim 1 及至 9 any one, characterized in that made it possible Komu hanging the door to the frame.

Images