JP5426987B2 - Hinge for folding door - Google Patents

Description

  The present invention relates to a hinge for a folding door interposed between doors at a central portion of a folding door used in a closet door, an opening / closing partition or the like.

  Conventionally, as a hinge for a folding door or the like, for example, a hinge that rotatably connects door bodies of a folding door has been proposed (for example, see Patent Document 1).

  The hinge of patent document 1 is provided with a pair of hinge main body formed by bending the protrusion part which protruded the intermediate part of the up-down direction of the flat body toward the back surface side in the substantially U-shaped cross section. The projecting portion is provided with a pair of rising surface portions on both upper and lower sides, and the height dimensions of these rising surface portions substantially coincide with the depth dimension of the recessed recessed portion of each door body. Moreover, the protrusion part of one hinge main body is wider than the vertical dimension in the protrusion part of the other hinge main body. Furthermore, the same shape embedded member formed of synthetic resin or the like is attached to the back side of each hinge body. The embedding member has a pair of upper and lower fitting pieces that are fitted around the protruding portion of the hinge body, and the fitting piece has a fitting insertion recess. These insertion recesses are configured such that each of the insertion insertion protrusions of the hinge body is press-fitted and inserted.

JP 2003-269031 A

  However, the hinge of Patent Document 1 is supported only by screwing the seat in a state where the width dimension of the protruding portion is small and is fitted to the upper and lower side areas around the protruding portion via a gap. In addition, the weight of the door will be received by the insertion recess when used over time, and stress concentration will occur in the insertion recess and deformation will likely cause rattling or downward displacement of the door. It was expected.

  Moreover, since the height dimension of the rising surface part of a hinge main body is substantially the same as the depth dimension of the embedding recessed part of each door body, the hinge of patent document 1 is a router when it mounts in the embedding recessed part of a door. In some cases, cutting scraps remaining when machining by the like, or protrusions or burrs of other hinge components are obstructive.

  Therefore, the present invention has been made in consideration of such problems, and by using an embedded member that can be firmly fixed to a blade with a simple shape, stress concentration and deformation in the embedded member can be prevented. An object of the present invention is to provide a hinge for a folding door that can prevent the rattling of the door and the downward displacement.

  In order to solve the above-mentioned problems, the hinge for folding doors according to the present invention is a hinge for folding doors that is fixed to the opposite door edge portions of two adjacent doors, and rotatably connects between the doors, A first protrusion having a first protrusion formed by bending a central portion in the vertical direction, a bearing formed at one end of the first protrusion, and a blade plate provided above and below the first protrusion. , A second protrusion formed narrower than the width of the first protrusion, a bearing part formed on one end side of the second protrusion, and a second A second blade having a blade plate provided above and below the protrusion, and the bearing portion of the second blade enters between the bearing portions of the first blade and is connected to each other in a rotatable manner. Hinge body, embedded portion for fitting into embedded recessed portion formed in one door, and cutting the embedded portion into a substantially C shape A first embedded member that is formed in a cutout, has the same width as the vertical direction of the first protrusion, and has a fitting portion that fits into the rising surface of the first protrusion, and the other An embedding portion for fitting into an embedding recess formed in the door, and the embedding portion is formed by cutting out the embedding portion into a substantially C shape, and has the same width as the vertical direction of the second projecting portion. A second embedded member having a width narrower than the width of the fitting portion of the embedded member and having a fitting portion fitted to the rising surface of the second projecting portion. Protrusions that hook onto the first blade and the second blade are provided on the cutout side of the insert member and the second embedded member, respectively, and the first protrusion and the second protrusion are formed on the bottom of the cutout. A hook hole for inserting a hook portion formed on the other end side of the projecting portion is provided, and the first embedded member is mounted when the hook body is attached to the hinge body. And the second embedded member is inclined with respect to the first blade and the second blade, the hook portion is inserted into the hook hole, and the rising surfaces of the first protrusion portion and the second protrusion portion It is characterized by being fitted to.

  For example, the heights of the embedded portions of the first embedded member and the second embedded member are made higher than those of the first protruding portion and the second protruding portion.

  Further, for example, a positioning hole is formed in the first blade and the second blade, and a positioning convex portion that fits into the positioning hole is formed in the first embedded member and the second embedded member. It is formed.

  According to the present invention, the hinge for a folding door is formed by embedding an embedded portion for fitting into an embedded recess formed in one of the doors, and cutting the embedded portion into a substantially C shape. The first embedded member having the same width as the vertical direction of the protruding portion and having a fitting portion that fits to the rising surface of the first protruding portion, and the embedded recessed portion formed in the other door And a width that is formed by cutting out the embedded portion into a substantially C shape and having the same width as the vertical direction of the second projecting portion and narrower than the width of the fitting portion of the first embedded member. And a second embedded member having a fitting portion that fits on the rising surface of the second protruding portion, and using an embedded member that can be firmly fixed to the blade with a simple shape. This makes it easy to handle the embedded member, prevents stress concentration in the embedded member, and prevents the door from rattling or being displaced downward. That.

  Further, the height of the embedded portions of the first embedded member and the second embedded member is made higher than that of the first protruding portion and the second protruding portion, so that the embedded portion can be embedded in the door. Since only the insert member comes into contact with the processed surface of the recessed recessed portion of the door, the effect of being stably and accurately attached without causing interference with protrusions, burrs, cutting waste, etc. of other hinge components.

  In addition, positioning holes are formed in the first blade and the second blade, and positioning protrusions that fit into the positioning holes are formed in the first and second embedded members. This facilitates the mounting of the first embedded member to the first blade and the mounting of the second embedded member to the second blade.

It is an exploded view which shows the structure of the hinge 100 for folding doors of embodiment of this invention. It is a top view which shows the structure of the hinge 100 for folding doors. It is explanatory drawing which shows the attachment of the embedding member to a blade | wing. It is a figure which shows the state after mounting an embedding member. It is AA sectional drawing of the hinge 100 for folding doors. It is BB sectional drawing of the hinge 100 for folding doors. It is CC sectional drawing of the hinge 100 for folding doors. It is sectional drawing which shows the state with which the door of the hinge 100 for folding doors was mounted | worn.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the hinge for folding doors which concerns on this invention is demonstrated with reference to figures.

  The hinges for folding doors according to the present invention are fixed to opposite door edges of two adjacent doors, and connect the doors so as to be rotatable.

  FIG. 1 is an exploded view showing a configuration of a hinge 100 for a folding door according to an embodiment of the present invention. FIG. 2 is a top view showing a configuration of the hinge 100 for folding doors.

  As shown in FIGS. 1 and 2, the hinge 100 for a folding door has a first blade 110a and a second blade 110b, and a second blade 110b between the bearing portions 112a of the first blade 110a. A hinge body 110 that is rotatably coupled to each other, a first embedded member 120a that is mounted on the first blade 110a, and a second that is mounted on the second blade 110b. Embedded member 120b.

  The hinge main body 110 includes a first projecting portion 111a formed by bending a center portion in the vertical direction when mounted on the door to the back surface side, and a bearing portion 112a formed on one end side of the first projecting portion 111a. A first blade 110a having a blade plate 107a provided above and below the first protrusion 111a, and a second protrusion 111b formed to be narrower than the width of the first protrusion 111a by bending the central portion in the vertical direction. And a second blade 110b having a bearing portion 112b formed on one end side of the second protrusion 111b and a blade plate 107b provided above and below the second protrusion 111b, and a bearing for the first blade 110a. The bearing portion 112b of the second blade 110b enters between the portions 112a and is pivotally connected to each other, the cam 114, and a biasing hand that holds or regulates the rotation angle of the blade. And a slider 115 and a spring 116 serving as a.

  The first blade 110a has a first protrusion 111a having a convex shape (substantially U-shaped in cross section) having a predetermined width formed by being bent by press molding or the like at the center in the longitudinal direction of a metal plate-like member. The rising surfaces 101a of the first protrusions are erected in parallel with each other. The height of the rising surface 101a is appropriately designed so that components such as the slider 115 and the spring 116 can be accommodated. A pair of bearing portions 112a is provided on one end side of each rising surface 101a of the first projecting portion 111a. These bearing portions 112a have a flat plate shape that is the same surface as the rising surface 101a, and circular bearing holes 102a that are coaxial with each other are formed at the center of each bearing portion 112a. Further, a hook 103a is formed on the other end of the first protrusion 111a.

  The second blade 110b has a second protrusion 111b having a convex shape (substantially U-shaped in cross section) with a predetermined width formed by being bent by press molding or the like at the longitudinal center of the metal plate-like member. . The width of the second protrusion 111b is narrower than the width of the first protrusion 111a. Further, the rising surfaces 101b of the second protrusions 111b are erected in parallel with each other. The height dimension of the rising surface 101b is the same as the height of the first protrusion 111a. A pair of bearing portions 112b is provided on one end side of each rising surface 101b of the second projecting portion 111b. These bearing portions 112b have a flat plate shape that is the same surface as the rising surface 101b, and circular bearing holes 102b that are coaxial with each other are formed at the center of each bearing portion 112b. A hook 103b is formed on the other end of the second protrusion 111b.

  The bearing portion 112b of the second blade 110b can enter between the bearing portions 112a of the first blade 110a. Further, bushes 117 are arranged between the bearing portion 112b of the first blade 110b and the bearing portion 112b of the second blade 110b. These bushes 117 have noise reduction and buffer functions.

  Further, in the first blade 110a and the second blade 110b, a plurality of circular screw insertion holes 104a and 104b are formed on the blade plates 107a and 107b, for example, on both sides of the first protrusion 111a and the second protrusion 111b. Two are provided. The blades 107a and 107b are fixed to the door with screws. Further, one rectangular positioning hole 105a, 105b is provided on each side of the first protrusion 111a and the second protrusion 111b.

  The hinge main body 110 is configured by inserting the bearing portions 112b of the second blades 110b between the bearing portions 112a of the first blades 110a and connecting them with a shaft 113 so as to be rotatable.

  The embedding member 120 is formed with an embedding portion 121a for fitting into an embedding recess 131a formed on one door 130a, and a notch shape of the embedding portion 121a. A first embedded member 120a having a width corresponding to the width and having a fitting portion 122a fitted to the rising surface 101a of the first protruding portion 111a, and an embedded recess formed in the other door 130b An embedding portion 121b for fitting into 131b and a notch-shaped embedding portion 121b are formed, and the fitting portion 122a of the first embedding member 120a corresponds to the width of the second projecting portion 111b. A second embedded member 120b having a width narrower than the width and having a fitting portion 122b fitted to the rising surface 101b of the second protruding portion 111b. Here, the embedded portion 121a of the first embedded member 120a and the embedded portion 121b of the second embedded member 120b have the same shape other than the formed fitting portion.

  The first embedding member 120a is formed in a substantially C shape from a synthetic resin or the like. The first embedding member 120a is formed with an embedding portion 121a having a circular outer peripheral surface and a notch shape of the embedding portion 121a, and the first protrusion 111a of the first blade 110a rises. And a fitting portion 122a fitted to the surface 101a. The embedded part 121a can be fitted into an embedded recessed part 131a formed in one door 130a. The first embedding member 120a is formed with a positioning convex portion 123a that fits into the positioning hole 105a of the first blade 110a. A chamfer or a circular angle R is formed at the end of the positioning convex portion 123a. Further, a pair of protrusions 124a that are hooked on the first blade 110a are formed at the opening end (notch side) of the first embedded member 120a, and a concave-arc surface-shaped shaft relief portion is formed on the end surface of the protrusion 124a. 125a is provided, and a latching surface 128a is provided on the opposite side. Note that a plate-like portion 126a protruding outward is integrally provided on the side facing the opening end of the first embedding member 120a. The plate-like portion 126a has substantially the same shape as the cutout portion 106a of the first blade 110a and has the same thickness as the first blade 110a.

  The second embedded member 120b is formed in a substantially C shape from a synthetic resin or the like. The second embedded member 120b is formed with an embedded portion 121b having a circular outer peripheral surface and a cutout shape of the embedded portion 121b, and the rising of the second protruding portion 111b of the second blade 110b. And a fitting portion 122b fitted to the surface 101b. That is, the width of the fitting portion 122b of the second embedded member 120b is formed to be narrower than the width of the fitting portion 122a of the first embedded member 120a. The embedded portion 121b can be fitted into an embedded recess 131b formed in the other door 130b. The second embedding member 120b is formed with a positioning convex portion 123b that fits into the positioning hole 105b of the second blade 110b. A chamfer or a circular angle R is formed at the end of the positioning convex portion 123b. Furthermore, a pair of protrusions 124b that are hooked on the second blade 110b are formed at the opening end (notch side) of the second embedded member 120b, and a concave-arc surface axial relief portion is formed on the end surface of the protrusion 124b. 125b is provided, and a latching surface 128b is provided on the opposite side. A plate-like portion 126b protruding outward is integrally provided on the side facing the opening end of the second embedded member 120b. The plate-like portion 126b has substantially the same shape as the notch portion 106b of the second blade 110b, and has the same thickness as the second blade 110b.

  In addition, a hook hole 127a into which the hook portion 103a of the first blade 110a and the hook portion 103b of the second blade 110b are inserted into the bottoms of the cutouts of the first embedded member 120a and the second embedded member 120b. , 127b. Thereby, it can prevent that the 1st embedding member 120a and the 2nd embedding member 120b after mounting | wearing remove | deviate.

  Next, a method of mounting the first embedded member 120a and the second embedded member 120b on the first blade 110a and the second blade 110b will be described with reference to FIGS. Here, a method of attaching the second embedded member 120b to the second blade 110b will be described as an example. The mounting of the first embedded member 120a is the same as that of the second embedded member 120b.

  When the second embedded member 120b is mounted on the second blade 110b, first, as shown in FIG. 3A, the second protrusion 111b of the second blade 110b is turned up. The second embedding member 120b is inclined so that the hooking hole 127b is positioned corresponding to the hooking portion 103b of the second blade 110b.

  Next, from the state shown in FIG. 3A, the second embedded member 120b is moved in the substantially horizontal direction so as to insert the hook 103b of the second blade 110b into the hook hole 127b in the direction of the arrow in the figure. Let The state shown in FIG.

  Then, the second embedding member 120b is pushed downward from the state shown in FIG. 3B in the direction of the arrow in the drawing, and the positioning convex portion 123b is press-fitted into the positioning hole 105b of the second blade 110b to be fitted. The engaging surfaces 128a and 128b of the protrusion 124a are engaged with the blades 107a and 107b, that is, the state shown in FIG. Thereby, the mounting of the second embedded member 120b to the second blade 110b is completed.

  FIG. 4 is a view showing a state in which the embedded member 120 is attached to the hinge body 110. As shown in FIG. 4, the fitting portion 122a of the first embedded member 120a is fitted to the rising surface 101a of the first projecting portion 111a without a gap. Further, the fitting portion 122b of the second embedded member 120b is fitted to the rising surface 101b of the second protruding portion 111b without a gap.

  FIG. 5 is a cross-sectional view of the hinge 100 for folding doors taken along the line AA. As shown in FIG. 5, in a state where the first embedding member 120a and the second embedding member 120b are mounted on the hinge body 110, the positioning convex portion 123a of the first embedding member 120a has the first embedding member 120a. The second fitting member 120b is similarly configured to be fitted into the positioning hole 105a of the blade 110a. Accordingly, the first embedded member 120a can be easily attached to the first blade 110a and the second embedded member 120b can be easily attached to the second blade 110b, and positioning can be ensured.

  Further, a protrusion 124a provided at the opening end of the first embedded member 120a is positioned between the first blade 110a and the shaft 113, and the hooking surfaces 128a and 128b are hooked on the blade plates 107a and 107b. . Note that the first embedding member 120a can be easily removed by pressing the projection 124a. The same applies to the second embedded member 120b.

  FIG. 6 is a cross-sectional view of the hinge 100 for folding doors taken along the line BB. As shown in FIG. 6, the fitting portion 122a of the first embedded member 120a is in a state of being tightly fitted to the rising surface 101a of the first protruding portion 111a. As a result, the weight of the door 130a (in the direction of the arrow in the figure) is received by the rising surface 101a of the first protrusion 111a that contacts the fitting portion 122a. Therefore, it is possible to prevent stress concentration in the first embedded member 120a, and to prevent the door 130a from rattling or being displaced downward.

  FIG. 7 is a cross-sectional view taken along the line CC of the hinge 100 for a folding door. As shown in FIG. 7, the fitting portion 122b of the second embedded member 120b is in a state of being closely fitted to the rising surface 101b of the second protruding portion 111b. As a result, the weight of the door 130b is received by the rising surface 101b of the second protrusion 111b in contact with the fitting portion 122b. Therefore, it is possible to prevent stress concentration in the second embedded member 120b, and to prevent the door 130b from rattling or being displaced downward.

  FIG. 8 is a cross-sectional view illustrating a state in which the door of the folding door hinge 100 is mounted. As shown in FIG. 8, the hook 103a of the first blade 110a is inserted into the hook hole 127a and the hook 103b of the second blade 110b is hooked in the state where the hinge 100 for the folding door is attached to the door. It is inserted into the hole 127b. Further, since the heights of the embedding portions 121a and 121b of the first embedding member 120a and the second embedding member 120b are higher than those of the first projecting portion 111a and the second projecting portion 111b, Only the insert members 120 (120a, 120b) come into contact with the processed surfaces of the recessed recesses 130a, 131b of the door.

  As described above, in this embodiment, the folding door hinge 100 includes the first protruding portion 111a formed by bending the center portion in the vertical direction when mounted on the door to the back surface side, and the first protruding portion. A first blade 110a having a bearing portion 112a formed on one end side of 111a and a blade plate 107a provided above and below the first protrusion 111a, and a central portion of the first protrusion 111a by bending the vertical center portion. A second protrusion 111b formed narrower than the width, a bearing 112b formed on one end side of the second protrusion 111b, and a blade plate 107b provided above and below the second protrusion 111b. A hinge body 110 formed by inserting a bearing portion 112b of the second blade 110b between the bearing portions 112a of the first blade 110a and being rotatably coupled to each other, and one door An embedded portion 121a for fitting into the embedded recess 131a formed in 30a, the embedded portion 121a formed in a cut-out shape, and having a width corresponding to the width of the first protruding portion 111a; A first embedded member 120a having a fitting portion 122a fitted to the rising surface 101a of the first protruding portion 111a, and an embedded portion for fitting into an embedded recess 131b formed in the other door 130b. 121b, the embedded portion 121b is formed in a notch shape, has a width corresponding to the width of the second projecting portion 111b and narrower than the width of the fitting portion 122a of the first embedded member 120a, And a second embedded member 120b having a fitting portion 122b fitted to the rising surface 101b of the second protruding portion 111b.

  As a result, handling of the embedded member 120 (120a, 120b) can be facilitated, stress concentration in the embedded member 120 can be prevented, and rattling of the door, particularly the door 130b, and downward displacement can be prevented. it can. Further, since the conventional cutting and raising process for forming the fitting insertion protrusion is omitted, the first blade 110a and the second blade 110b can be easily processed.

  Moreover, the height of the embedding portions 121a and 121b of the first embedding member 120a and the second embedding member 120b is higher than that of the first projecting portion 111a and the second projecting portion 111b, so that the door 130a. , 130b, only the embedded member 120 (120a, 120b) comes into contact with the processed surface of the recessed recesses 130a, 131b of the door, so that projections, burrs, cutting debris, etc. of other hinge components It can be attached accurately and stably without obstructing, and an effect that does not impair the beauty is obtained.

  Further, positioning holes 105a and 105b are formed in the first blade 110a and the second blade 110b, and positioning holes 105a and 105b are formed in the first embedded member 120a and the second embedded member 120b. The positioning projections 123a and 123b that are fitted to the first blade 110a are formed, so that the first embedded member 120a is attached to the first blade 110a and the second embedded member 120b is attached to the second blade 110b. Mounting is easy and positioning is assured.

  In the above-described embodiment, the first embedding member 120a and the second embedding member 120b have been described as being formed of synthetic resin. However, the present invention is not limited to this. You may make it form from another material, for example, a metal material.

  INDUSTRIAL APPLICABILITY The present invention can be used for a hinge for a folding door that is interposed between doors at the center of a folding door that is used in a closet door or an opening / closing partition.

100 Folding door hinges 101a, 101b Rising surfaces 102a, 102b Bearing holes 103a, 103b Hooks 104a, 104b Screw insertion holes 105a, 105b Positioning holes 106a, 106b Notches 107a, 107b Blade plate 110 Hinge body 110a First blade 110b Second blade 111a First protrusion 111b Second protrusion 112a Bearing part 112b Bearing part 113 Shaft 114 Cam 115 Slider 116 Spring 117 Bush 120 Embedded member 120a First embedded member 120b Second embedded Member 121a, 121b Embedded part 122a, 122b Fitting part 123a, 123b Positioning convex part 124a, 124b Protrusion 125a, 125b Shaft relief part 126a, 126b Plate-like part 127a, 127b Hook hole 128a 128b Kaketomemen 130a, 130b doors 131a, 131b embedded recess

Claims (3)

It is a hinge for folding doors that is fixed to opposite door edges of two adjacent doors and connects the doors in a rotatable manner,
A first protrusion having a first protrusion formed by bending a central portion in the vertical direction, a bearing formed at one end of the first protrusion, and a blade plate provided above and below the first protrusion. , A second protrusion formed narrower than the width of the first protrusion, a bearing part formed on one end side of the second protrusion, and a second A second blade having a blade plate provided above and below the protrusion, and the bearing portion of the second blade enters between the bearing portions of the first blade and is connected to each other in a rotatable manner. Hinge body,
An embedding part for fitting into an embedding recess formed in one door, and the embedding part formed by cutting out the embedding part into a substantially C shape and having the same width as the vertical direction of the first projecting part A first embedding member having a fitting portion fitted to the rising surface of the first projecting portion;
An embedding portion for fitting into an embedding recess formed in the other door, and the embedding portion is formed by cutting out the embedding portion into a substantially C shape, and has the same width as the vertical direction of the second projecting portion. A second embedded member having a width narrower than a width of the fitting portion of the first embedded member and having a fitting portion fitted to the rising surface of the second projecting portion,
The first embedding member and the second embedding member have notches on the cutout side, and protrusions that are hooked on the first vane and the second vane are provided, respectively, and the first notch is provided on the bottom of the notch. A hook hole for inserting a hook portion formed on the other end side of the projecting portion and the second projecting portion is provided, and the first embedding member and the second embedding member are mounted when the hinge body is mounted. Is inserted into the hooking hole in an inclined state with respect to the first blade and the second blade, and is fitted to the rising surfaces of the first protrusion and the second protrusion ,
A concave arc surface-shaped shaft relief recess is provided on the end surface of the projection, and a latching surface is provided on the opposite side, and the latching surface of the projection is latched on the blade when the hinge body is mounted. A hinge for folding doors, characterized by being formed as follows .   The height of the embedding part of the first embedding member and the second embedding member is made higher than that of the first projecting part and the second projecting part. Hinge for folding door. A positioning hole is formed in the first blade and the second blade,
The hinge for a folding door according to claim 1 or 2, wherein a positioning convex portion that fits into the positioning hole is formed on the first embedding member and the second embedding member.

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