JP5688521B2 - Folding door hinge - Google Patents

Description

  The present invention relates to hinges for folding doors.

  Usually, a folding door is frequently used in a closet or a partition. When the door is closed, the two doors are flush with each other, and the door is opened by a folding operation. Therefore, hinges are attached to adjacent doors and both doors are connected to each other so that they can be pivoted. When fully folded, it is necessary to fold them almost 180 degrees until the inner surfaces of both doors approach each other. Yes. A hinge for a general folding door has a flange-shaped mounting surface, a central recessed portion, and an axial center insertion surface, as reported in Japanese Patent Application Laid-Open Nos. 2003-269031 and 2008-88706. It is the structure which connects the blade | wing of a sheet | seat rotatably with an axial center.

  Here, in general, a configuration for biasing the folding door in both directions at a certain angle at the midway position of opening and closing the folding door is required, and a mechanism for biasing in the closing direction immediately before completely closing It has a mechanism to give resistance once before it is completely folded. For these mechanisms, a spring, an eccentric cam, and a slide piece are often used as shown in FIG. 6, and these mechanisms are usually assembled in the central recessed portion 5 of the blade 1. Therefore, in order to completely fold the folding door having these configurations, a certain amount of thickness is required for the central recessed portion 5 of the hinge blade 1, and as a result, the door body 15 is substantially omitted as shown in FIG. A circular counterbore 7 is formed, and the above-described mechanism portion is built in the counterbore 7. Then, a circular guide member that fits the substantially circular counterbore 7 is put on the periphery of the central recessed portion 5 of the blade 1 in advance, and the hinge blade without rattling is provided on the substantially circular counterbore 7 portion of the door 15. It is comprised so that 1 can be inserted and attached.

  Further, in a folding door, it is common to place hinges at three locations in the upper, middle, and lower sides of the door 15 in the vertical direction. When the hinge having the above-described configuration is used, it is substantially circular from the ends of the doors 15. It is very important to match the position of the countersink 7 and the pitch between the countersinks 7. Furthermore, a predetermined gap is often provided between the two adjacent door bodies 15, and it is also important that the vertical gap between the door bodies 15 after the three hinges are attached is uniform. It is said that.

JP 2003-269031 A JP2008-88706

  However, in the conventional hinge for folding doors, since the circular guide member is fitted along the counterbore 7 provided on the door 15, the flange-shaped attachment surface 2 with a screw or the like is used. Before the fixing, as shown in FIG. 8, the hinge itself is rotatable on the attachment surface of the door 15 within a certain range with respect to the substantially circular counterbore 7. Even in a state in which the hinge is fitted in both doors 15, the same phenomenon occurs as shown in FIG. 9, and the hinge itself may tilt on the surface of the door 15. And if it fixes with a screw etc. through the attachment hole 3 in this state, the upper-lower-ends part position of two adjacent door bodies 15 will shift | deviate, and the door body 15 rather than the state normally attached simultaneously. A phenomenon occurs in which the gap between them narrows.

  Here, as a work method when attaching the hinge, the door body 15 is completely moved so that the positions of the upper and lower ends of the two door bodies are securely aligned and the door bodies 15 are not displaced in the gap direction. It is assumed that the above problem can be almost solved by following the procedure of attaching the hinge after fixing. However, when assembling folding doors of various sizes at random, the work for securely holding the door body 15 takes a considerable amount of work. It is thought that a large-scale thing is needed.

  Further, as described above, the pitch dimension between the substantially circular countersinks 7 at the upper, middle, and lower parts of the door 15 is very important. In the unlikely event, only one of the doors 15 is slightly shifted. Even in the case where it has been done, as shown in FIG. 10, the hinges on the lower side can be attached in an inclined state, and the hinges are inclined although the upper and lower ends of the door 15 are aligned. There is a concern that the situation may be attached. Then, the folding door opens and closes while the hinge is slanted, which may cause damage or malfunction during long-term use.

  The present invention has been made to solve the above-mentioned problems, and can greatly simplify the work related to fixing the position of the adjacent doors 15 at the time of hinge construction. An object of the present invention is to propose a hinge for a folding door having a configuration capable of detecting an irregular pitch dimension between the substantially circular counterbore 7 of the door 15.

  In the present invention, the following technical means are provided to solve the above problems. First, in the same manner as in the prior art, a substantially circular counterbore with one end cut off linearly is formed in two doors of a folding door. Two blades made of a metal plate with a flange-shaped mounting surface, a central recess, and two upper and lower shaft center insertion surfaces can be rotated around a vertically arranged shaft center. Combine with. And in the hinge for folding doors of the present invention, the upper and lower outer sides in the vicinity of the axial insertion hole of the blade are formed as a horizontal plane, and the vertical outer dimension between the upper and lower horizontal planes is set to the substantially circular countersink of the door body. Set to the same dimension as the inner corner where one end is cut off in a straight line.

  Then, when the hinge is fitted into the substantially circular countersink portion of the door body, the upper and lower horizontal surfaces of the blades simultaneously contact the upper and lower inner corners of the substantially circular countersink of the door body. As a result, even when the hinge is fitted in one door, the hinge does not rotate on the mounting surface of the door relative to the substantially circular counterbore. And of course, it is the same when attaching the other door. Therefore, whatever attachment method is used, the central line in the lateral direction of the hinge is held at a right angle with respect to the door, and the hinge can always be attached at a normal position. At this time, a guide member for the inner surface of the substantially circular countersink is also necessary. However, instead of attaching other parts such as resin around the recessed portion of the hinge blade as in the past, the flange shape of the blade is not used. It is preferable to form several protrusions serving as guides on the mounting surface in an integrated shape by bending drawing, and make it easy to fit by fitting along the inner surface of a substantially circular counterbore.

  Further, conventionally, a hinge is assembled by means such as inserting a hook-shaped shaft center having a head on the shaft insertion surface of two blades and caulking the opposite side. The caulking margin on the opposite side to the head of the head protrudes and it is difficult to form the axial center insertion surface as a complete vertical and horizontal plane. Therefore, set countersunk on both the upper and lower shaft center insertion surfaces, set the shape of the head of the shaft center on the countersunk head, and embed the caulking allowance so that it is completely flush with the countersunk on the side to be crimped This is possible by using processing means. However, this method takes time and effort in the caulking process itself, and it is difficult to assume that workability is good. Therefore, as a method of forming a horizontal plane in the vertical position near the shaft insertion surface, a metal plate was bent and squeezed in a vertical direction continuously from the flange flange mounting surface portion around the shaft insertion hole. A horizontal plane may be formed at the circular end.

In addition, regarding the problem of the gap between adjacent doors, it is assumed that the hinge can always be placed in a normal position with respect to the doors described above and can be regulated to some extent by the protrusions that are guide members of the blades. The However, as a configuration that further increases the reliability, a plate-like protrusion having a predetermined gap size between both doors and a gap piece having a part of the surface that is the same height as the surface of the circular end are provided, and in the vicinity of the blade shaft insertion hole A configuration in which a gap piece is incorporated at the same time when assembling both blades at the shaft center by using an inside obtained by bending and narrowing a metal plate material constituting the upper and lower horizontal planes into a circle. Then, when the hinge is attached, the plate-like protrusion of the gap piece is forcibly arranged between the door bodies, and the predetermined gap between the door bodies is more securely held, and part of the surface of the gap piece This makes it possible to form a horizontal plane that is wider and more stable.

The upper and lower outer sides near the axis insertion surface of the blade are formed as a horizontal plane, and the vertical outer dimension of this vertical plane is set between the inner corners where one end of the substantially circular counterbore of the door is linearly interrupted. By setting the same size as that of the hinge, when the hinge is fitted into the substantially circular countersink portion of the door, the vertical horizontal plane of the blade is in contact with the inner corner of the substantially circular countersink of the door. Thus, the hinge cannot be rotated with respect to the substantially circular countersink in the state where it is fitted in the door, and therefore it can always be mounted at a normal position.

As a result, the central line in the lateral direction of the hinge is surely held at a right angle with respect to the door, and the pitch dimensions of the substantially circular countersinks at the upper, middle, and lower three locations of either door If it is off, the hinge cannot be attached, and it is possible to detect a malfunction of the previous stage machining in the normal attachment operation.

  Also, if a gap piece having a vertical plate-like projection and a part of the surface that is the same height as the surface of the circular end portion is provided and both blades are assembled at the same time as the shaft center, The predetermined gap between the door bodies can be more reliably maintained, and the degree of right angle of the hinge with respect to the door bodies can be increased by enlarging the horizontal plane by a part of the surface.

Therefore, when attaching the hinges, it is possible to eliminate the trouble of fixing the doors completely so that the positions of the upper and lower ends of the two doors are securely aligned and not shifted in the gap direction between the doors. This is possible, and it is not necessary to use a large-scale facility for installation work, and is very effective in the case of assembling folding doors of various sizes at random.

  The best mode of hinges for folding doors according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a hinge for a folding door according to the present invention, and includes a mounting surface 2 having a plurality of mounting holes 3 in a flange shape, a central recessed portion 5, and two axial center insertion surfaces 4. Two blades 1 made of a metal plate provided with the above are combined in a freely rotatable manner with an axis 6 arranged in a vertical direction. Further, the hinge for the folding door of the present invention also has a substantially circular counterbore 7 formed in the door body 15 as shown in FIG. 7, and the recessed portion 5 at the center of the blade 1 is fitted into the counterbore 7 without rattling. It is necessary to have a configuration that can be installed together.

  Therefore, as shown in FIG. 1, it is preferable that a plurality of protrusions 8 are integrally formed on the attachment surface 2 of the blade 1 by forming means such as bending drawing. Then, when attaching to the door 15, the protrusion 8 is guided along the inner surface of the substantially circular counterbore 7 of the door 15, and the blade 1 is fitted into the counterbore 7 without rattling. It becomes possible to attach with. Therefore, as shown in FIG. 5, when the shape of the protruding portion 8 is set to a tapered cylindrical shape, it is easier to guide the fitting when it is fitted to the counterbore 7.

  Then, an inner angle at a position where one end portion of the substantially circular counterbore 7 of the door body 15 shown in FIG. Next, the upper and lower outer surfaces in the vicinity of the axis insertion surface 4 of the blade 1 are formed as a horizontal plane 10, and the vertical outer dimension between the upper and lower horizontal planes 10 is the dimension between the inner corner portions 9 of the counterbore 7 of the door 15. Set the same as. Further, the configuration for forming the horizontal plane 10 is not particularly limited. However, as shown in FIG. 1, the horizontal plane 10 is continuously formed from the mounting surface 2 of the blade 1 in a circumferential shape around the insertion hole of the axis 6 of the blade 1. The configuration in which the upper and lower horizontal surfaces 10 are formed at the circular end portion 11 formed by bending and narrowing a metal plate material in the vertical direction is the best. In that case, according to the dimension between the inner corner parts 9 of the door 15, it is most important to set the same dimension between both upper and lower sides of the circular end part 11 of the blade 1 described above.

  Here, as shown in FIG. 1, in order to bend and squeeze a plurality of protrusions 8 and plate materials by bending drawing to serve as a guide for the countersink 7 of the blade 1, a circular end 11 is conventionally formed. It is assumed that it is easier in terms of processing to manufacture the blade 1 using a metal plate material that is relatively thinner than the product. Therefore, in order to reinforce the other part of the blade 1 by reducing the thickness of the plate material, for example, as shown in the recessed portion 5 in the center of FIG. Good. Further, the recessed portion 5 in the center of the blade 1 is composed of a spring, an eccentric cam and a slide piece similar to those in FIG. The structure which gives is provided.

  FIG. 2 is a front view of the state in which the hinge for the folding door of the present invention is attached only to one door 15, and the hinge 15 is guided by the protrusion 8 to the substantially circular counterbore 7 portion of the door 15. When fitted, the vertical horizontal plane 10 of the blade 1 inevitably contacts the vertical inner corner 9 of the counterbore 7 of the door 15. Then, the hinge cannot be rotated with respect to the substantially circular counterbore 7, and the horizontal center line of the hinge is held at a right angle with respect to the door 15 regardless of the attachment method. The hinge can be attached at the normal position.

  Of course, the same is true at the stage of attaching the other door 15, and the center line of the hinge in the lateral direction is securely held at a right angle with respect to both doors 15 as shown in FIG. 3. Therefore, the phenomenon that the hinge tilts with respect to the door 15 as shown in FIG. 9 does not occur. In the unlikely event that the pitch dimension of the substantially circular counterbore 7 at the upper, middle and lower three locations of either one of the doors 15 is shifted, the second or third hinge of the upper, middle and lower This is also effective in that it is not possible to attach the sensor as shown in FIG. 10, and as a result, it is possible to detect a defect in a normal mounting operation.

Next, the point that the gap between the adjacent door bodies 15 is uniformly maintained from the top to the bottom can be regulated to some extent by the projections 8 that are the guides of the blades 1, and the hinge for the folding door according to the present invention. Then, it is assumed that a relatively uniform gap can be secured because the hinge does not tilt with respect to the door 15 shown in FIG. However, the upper and lower gaps may vary due to warping or twisting of the door 15 itself, and it is considered that a more reliable configuration is required.

Therefore, as shown in FIG. 4, a gap piece 13 having a vertical plate-like protrusion 12 having a predetermined gap size of both doors 15 is provided, and the metal constituting the vertical horizontal plane 10 of the blade 1 as shown in FIG. 5 is provided. A configuration in which the gap pieces 13 are incorporated at the same time when the blades 1 are assembled at the shaft center 6 by using the inside of the circular end portion 11 formed by bending and narrowing the plate material is preferable. Then, the plate-like protrusion 12 of the gap piece 13 is forcibly disposed between the door bodies 15 when the hinge is attached, and a predetermined gap between the door bodies 15 can be maintained. In addition, since a plurality of hinges are usually used for the folding door, the gap piece 13 may be provided on only one side of the upper and lower horizontal surfaces 10 of one folding door hinge.

Further, if the surface of the gap piece 13 shown in FIG. 4 where the plate-like protrusion 12 is raised is formed as a part of the surface 14 so as to be the same height as the circular end portion 11 of the blade 1, Thus, it is possible to form the horizontal plane 10 that is wider and more stable. Therefore, as the best mode regarding the formation of the horizontal surface 10 of the hinge for a folding door and the arrangement of the gap pieces 13 of the present invention, as shown in FIG. 1, a plate-like projection is formed in the circular end portion 11 forming one horizontal surface 10. 12 and a gap piece 13 having a surface portion 14 are arranged, and a flat head axis 6 having the same head thickness as the height of the circular end portion 11 is used in the circular end portion 11 forming the other horizontal surface 10. A configuration in which a wider horizontal surface 10 is formed by the head portion of the axis 6 serving as the surface portion 14 and the circular end portion 11 is the best.

It is a perspective view of the hinge for folding doors of this invention. It is a front view in the state where the hinge for folding doors of the present invention was attached only to one door. It is a front view of the state which attached the hinge for folding doors of this invention to both door bodies. It is a perspective view of the gap piece of the hinge for folding doors of this invention. It is a top view of the state which equipped the gap piece of the hinge for folding doors of this invention. It is a cross-sectional view showing a mechanism for urging a conventional folding door hinge in both directions with a certain angle in the middle of opening and closing as a boundary. It is a perspective view of the state which gave a substantially circular countersink to the door body of a folding door. It is a front view of the state which has rotated on the attachment surface, when attaching the conventional hinge for folding doors to one door. It is a front view of the state with which the conventional hinge for hinged doors was mounted | worn with both sides tilted. It is a front view which shows the state attached to the conventional hinge for hinges with the countersink pitch differing.

DESCRIPTION OF SYMBOLS 1 blade | wing 2 attachment surface 3 attachment hole 4 shaft center insertion surface 5 recessed part 6 shaft center 7 counterbore 8 protrusion part 9 inner corner part 10 horizontal surface 11 circular edge part 12 plate-like protrusion 13 gap piece 14 surface part 15 door body

Claims (4)

  A state in which a substantially circular countersink with one end cut linearly is formed in two adjacent doors with a certain gap between the folding doors, and a recess in the center of the hinge is fitted in the countersink Two blades made of a metal plate with a flange-shaped attachment surface, a central recessed portion, and two upper and lower shaft insertion surfaces, which are connected to each other in a foldable manner, vertically This is a hinge for hinged doors that can be rotated around a shaft centered in the direction, and a horizontal plane is formed on the upper and lower sides in the vicinity of the insertion hole of the shaft center. A gap piece having a plate-like protrusion having the same dimension as the gap between the adjacent doors is set to be the same as the dimension between the upper and lower inner corners, which are positions where the substantially circular counterbore is interrupted in a straight line. It is mounted near the shaft center insertion surface, and the plate-like protrusion on the gap piece is forced between the doors when the hinge is attached. Hinge for folding door, characterized in that it has been configured to be incorporated seen. The upper and lower horizontal planes near the axis insertion surface of the blades are formed by circular ends obtained by bending and narrowing a metal plate material in the vertical direction continuously from the flange-shaped mounting surface of the blades in a circumferential shape around the axis. A hinge for a folding door according to claim 1.   3. A part of a surface having the same height is also provided in a circular end portion formed by bending and narrowing a metal plate material in a vertical direction constituting a vertical horizontal plane in the vicinity of an axis insertion surface of the blade. Hinge for the described folding door. A plurality of protrusions are integrally formed on the flange-shaped mounting surface of the blade, and are configured to be guided along the inner surface of the substantially circular counterbore of the door body when attached to the door body. A hinge for a folding door according to any one of claims 1 to 3.

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