Door support structure and door installation method
The door support structure with a vertical suspension portion and rotatable hinge system addresses the challenge of easy door attachment by minimizing frame interference and enhancing design properties.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- LIXIL CORP
- Filing Date
- 2024-11-05
- Publication Date
- 2026-05-19
AI Technical Summary
The existing pivot hinge attachment method interferes with the frame when a door is laid horizontally, making it difficult to easily attach the door leaf.
A door support structure with a suspension portion extending vertically, a hinge structure that rotatably connects the door to the suspension portion, and a method for installing the door by fixing hinges to a frame portion or a hinge portion extending vertically, allowing easy attachment of the door.
Facilitates easy attachment of the door by reducing interference with the frame and improving design properties, such as reducing the risk of finger entrapment and enhancing workability.
Smart Images

Figure 2026081668000001_ABST
Abstract
Description
Technical Field
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[0001] The present disclosure relates to a door support structure for supporting a door and a method for installing the door.
Background Art
[0002] Patent Document 1 discloses a door leaf, a doorpost provided with a fitting locking groove recessed in a screw receiving groove provided on a side wall surface, and a pair of pivot hinges that are locked in the fitting locking groove to connect the door leaf to the doorpost. The upper pivot hinge is fixed to the doorpost by inserting a fixing fitting of the pivot hinge from the upper end of the fitting locking groove, and is fixed to the upper surface of the door leaf.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] The pivot hinge described in Patent Document 1 is attached by being inserted from the upper end of the fitting locking groove, but when a frame is laid horizontally on the door leaf, it interferes with the frame during attachment. When a frame is laid horizontally on the door leaf, it is desirable to be able to easily attach the door leaf.
[0005] An object of the present disclosure is to provide a technique that enables easy attachment of a door.
Means for Solving the Problems
[0006] To solve the above problems, a door support structure according to an aspect of the present invention includes a door, a frame portion provided above the door, a support structure fixed on a fixed surface, a suspension portion supported by the frame portion, extending along the vertical direction, and disposed on the side of the door, and a hinge structure that rotatably connects the door to the suspension portion.
[0007] Another aspect of the present invention is a door installation method. This method is a door installation method for installing a door on a support structure that has a frame portion extending horizontally and is fixed on a surface to be fixed, and includes the steps of: fixing a hinge portion to either the frame portion or a hinge portion extending vertically and positioned to the side of the door; supporting the hinge portion on the frame portion; and rotatably connecting a door-side hinge portion provided on the door to the hinge portion. [Brief explanation of the drawing]
[0008] [Figure 1] This is a front view of the door support structure of the embodiment. [Figure 2] This is an exploded view of the door support structure. [Figure 3] This is a diagram illustrating the mounting state of the suspension part. [Figure 4] This is an exploded view of the upper part of the suspension base and the first suspension side hinge. [Figure 5] This is a perspective view of the lower suspension point. [Figure 6] This is an exploded view of the main body of the suspension point and the second suspension side hinge. [Figure 7] This is a top view of the vertical frame and the hinge on the first door side. [Figure 8] This is a top view of the suspension structure. [Figure 9] This is a top view of the vertical frame and the hinge on the second door side. [Figure 10] This is a diagram illustrating how to attach a door to its hinge side. [Figure 11] This diagram illustrates how to attach the door to the hinge side, and shows the steps after Figure 10. [Modes for carrying out the invention]
[0009] Figure 1 is a front view of the door support structure 10 of the embodiment. The door support structure 10 comprises a support structure composed of a pair of column portions 12, a frame portion 14, and a side panel portion 16; a pair of doors 18 that are provided to open and close in an opening of the support structure; a hinge portion 20 connected to the pair of doors 18; an embedded auxiliary portion 22; and a hinge structure that rotatably connects the doors 18 to the hinge portion 20.
[0010] In Figure 1, the dashed line "Ground G" indicates the position of the ground, and the door support structure 10 below Ground G is embedded. Ground G is not limited to the ground surface; it may be a floor surface made of concrete or the like, as long as it is a fixed surface to which the gate can be secured. In other words, the lower parts of the pair of column sections 12, the lower parts of the pair of sleeve panel sections 16, the lower parts of the pair of hinge sections 20, and the embedded auxiliary section 22 are embedded in Ground G.
[0011] The pair of column sections 12 are erected with their lower parts embedded in the ground G. The frame section 14 is connected to the upper ends of each of the column sections 12 and extends horizontally. The frame section 14 may be supported by something other than the column sections 12, for example, by the exterior wall or fence of a building. In other words, the supporting structure will include buildings and fences, but in any case the supporting structure will have a frame and be fixed to the ground G.
[0012] A pair of sleeve panel sections 16 are located on the inner circumference of the column section 12 and are supported by the column section 12 and the suspension section 20. A rail groove is formed on the inner surface of the column section 12, and one side edge of the sleeve panel section 16 fits into this rail groove. Similarly, a rail groove is formed on the outer surface of the suspension section 20, and the other side edge of the sleeve panel section 16 fits into this rail groove. The vertical frame of the sleeve panel section 16 is connected to the lower frame of the sleeve panel section 16, and the lower part is embedded in the ground G. The sleeve panel section 16 is not limited to a panel, but may be a lattice, net, fence, or any combination thereof. A post or parcel box may be provided on the sleeve panel section 16.
[0013] The hanging support part 20 extends in the vertical direction, closes the gap between the door 18 and the sleeve panel part 16, and supports the door 18. The hanging support part 20 is connected to and supported by the frame part 14. The embedded auxiliary part 22 has an L-shaped cross-section, is embedded in the ground G, and provides a seating surface that extends along the horizontal direction. The lower ends of the pair of hanging support parts 20 are placed on a predetermined seating surface of the embedded auxiliary part 22 in a state of being embedded in the ground G. The embedded auxiliary part 22 can easily set the interval between the pair of hanging support parts 20. Since the hanging support part 20 is supported by the frame part 14 and the ground G and is connected to the door 18, the door 18 can be attached even if the pillar part 12 is not present.
[0014] Figure 2 is an exploded view of the door support structure 10. In Figure 2, the support structure of one door 18 is shown. The door support structure 10 can also be composed of one door 18. The sleeve panel part 16, the hanging support part 20, and the vertical frame part 24 of the door 18 are arranged side by side in the left-right direction.
[0015] The upper end part of the hanging support part 20 is fixed to the frame part 14, and the lower end part is embedded in the ground G. The hanging support part 20 is supported so as to be suspended by the frame part 14. A first hanging support side hinge part 26a is fixed to the upper part of the hanging support part 20, and a second hanging support side hinge part 28a is fixed to the lower part of the hanging support part 20. The vertical frame 16a of the sleeve panel part 16 is applied to the rail part of the hanging support part 20.
[0016] The door 18 has a vertical frame part 24 on the side edge on the hanging support part 20 side, which constitutes the side surface of the door 18. A first door side hinge part 26b is fixed to the upper part of the vertical frame part 24, and a second door side hinge part 28b is fixed to the lower part of the vertical frame part 24. The second door side hinge part 28b has an auto-close function that biases the door 18 in the closing direction.
[0017] The first suspension-side hinge portion 26a and the first door-side hinge portion 26b are rotatably connected to form the first hinge unit 26. The second suspension-side hinge portion 28a and the second door-side hinge portion 28b are rotatably connected to form the second hinge unit 28. The first hinge unit 26 and the second hinge unit 28 constitute a hinge structure. The load of the door 18 is applied to the suspension portion 20 via the first hinge unit 26 and the second hinge unit 28, and further from the suspension portion 20 to the frame portion 14 and to the ground G. That is, the load of the door 18 is applied to the frame portion 14 and the ground G via the suspension portion 20, and is set so as not to be substantially applied to the sleeve panel portion 16 located on the side of the suspension portion 20. Therefore, the degree of freedom in the configuration of the sleeve panel portion 16 increases. By the suspension portion 20 transmitting the load of the door 18 to the frame portion 14, the suspension portion 20 is not required to have high rigidity, and can be formed thin to improve the design property.
[0018] Since the suspension portion 20 can cover the gap between the door 18 and the sleeve panel portion 16, the design property is improved. By covering the gap between the door 18 and the sleeve panel portion 16, the possibility that a user's finger or the like is caught in the gap can be reduced.
[0019] FIG. 3 is a view for explaining the mounting state of the suspension portion 20. In FIG. 3, a view of the suspension portion 20 as seen from the back side is shown. The frame portion 14 has an inner plate portion 14a formed so as to connect both side surfaces.
[0020] The suspension portion 20 has a main body portion 21, a bead 32, and a mounting bracket 34. The main body portion 21 has a cover piece 21a that projects toward the door 18. The cover piece 21a is located on the front side and covers the first hinge unit 26 and the second hinge unit 28 from the front side. Thereby, the suspension portion 20 can cover the first hinge unit 26 and the second hinge unit 28 located between the sleeve panel portion 16 and the door 18 from the front side to improve the design property. The bead 32 is arranged to extend along the cover piece 21a and is provided so as not to protrude from the cover piece 21a.
[0021] The mounting bracket 34 is fixed to the upper end of the main body 21. The mounting bracket 34 is fixed to the inner plate 14a with screws. The suspension part 20 is supported so as to be suspended from the frame 14. This makes it easy to align the suspension part 20.
[0022] The first hinge portion 26a has a base portion 36 and a shaft portion 38. The base portion 36 is fixed to the side of the main body portion 21. The base portion 36 extends in the depth direction and protrudes to the rear side. The shaft portion 38 is fixed to the lower surface of the base portion 36 and extends downward.
[0023] Figure 4 is an exploded view of the upper part of the suspension part 20 and the first suspension side hinge part 26a. The main body part 21 has a cover piece 21a, an insertion hole part 21b, a positioning hole part 21c, and a rail part 21d. The main body part 21 is formed in a hollow shape and has the same uniform cross-section as the upper end shown in Figure 4.
[0024] A pair of insertion holes 21b are provided on the upper part of the main body 21. Positioning holes 21c are located near the insertion holes 21b and are equidistant from the pair of insertion holes 21b. The rail portion 21d forms a step on the side of the main body 21 on the side facing the sleeve panel portion 16. The rail portion 21d extends vertically and the panel of the sleeve panel portion 16 rests against it. The insertion holes 21b may be threaded.
[0025] The mounting bracket 34 has an insertion plate portion 34a, a fastening plate portion 34b, and an overhanging portion 34c. The mounting bracket 34 is formed by bending a metal plate. The insertion plate portion 34a is inserted from the upper end of the main body portion 21. A threaded screw hole portion 34d is formed in the insertion plate portion 34a, and together with the base portion 36, it is screwed to the main body portion 21. In other words, the first hinge portion 26a and the main body portion 21 are fixed to the mounting bracket 34 by the same screw, and the first hinge portion 26a is supported by the mounting bracket 34 together with the main body portion 21. As a result, the load of the door 18 on the first hinge portion 26a is transmitted to the frame portion 14.
[0026] The fastening plate portion 34b bends from the insertion plate portion 34a and extends horizontally. The fastening plate portion 34b is fastened to the inner plate portion 14a of the frame portion 14. The protruding portion 34c is located on the same plane as the insertion plate portion 34a, protrudes in the width direction from the insertion plate portion 34a, and protrudes towards the rear side. The protruding portion 34c abuts against the upper edge of the main body portion 21 to prevent the insertion plate portion 34a from being inserted too far.
[0027] The base portion 36 has a first mounting hole portion 36a, a second mounting hole portion 36b, and a positioning pin. The first mounting hole portion 36a is vertically penetrating and into which a screw for fixing the shaft portion 38 can be inserted. A recess is formed around the first mounting hole portion 36a to determine the position of the shaft portion 38.
[0028] The second mounting holes 36b are formed in pairs, penetrate in the visible direction, and allow for the insertion of screws for fixing the first hinge unit 26 to the main body 21. The positioning pins protrude in the visible direction and can be inserted into the positioning holes 21c of the main body 21. The spacer 40 is provided between the main body 21 and the base 36 and functions as a washer.
[0029] The shaft portion 38 has a threaded screw hole portion 38a. The worker aligns the shaft portion 38 with the first mounting hole portion 36a and inserts a screw into the first mounting hole portion 36a from above and screws it into the screw hole portion 38a. This fixes the shaft portion 38 to the base portion 36.
[0030] The worker inserts the mounting bracket 34 from the upper end of the main body 21, inserts the positioning pin 36c into the positioning hole 21c, inserts the screw from the second mounting hole 36b into the insertion hole 21b, and screws it into the screw hole 34d. This fixes the mounting bracket 34 and the base 36 to the main body 21.
[0031] Figure 5 is a perspective view of the lower suspension portion 20. The lower end portion 21e of the main body portion 21 is located below the second suspension side hinge portion 28a and is embedded in the ground G. The second suspension side hinge portion 28a has a base portion 36 and a bearing portion 42. The bearing portion 42 is erected on the base portion 36.
[0032] Figure 6 is an exploded view of the main body 21 and the second hinge portion 28a of the suspension portion 20. The main body 21 further has a positioning hole 21f that penetrates in the visible direction and a pair of insertion holes 21g.
[0033] The bearing portion 42 has a shaft hole portion 42a. The bearing portion 42 has a hole formed at the bottom of the shaft hole portion 42a for inserting a screw. The bearing portion 42 is screwed into the first mounting hole portion 36a. The worker inserts the positioning pin 36c into the positioning hole portion 21f and screws the screw from the second mounting hole portion 36b into the insertion hole portion 21g. Since the base portion 36 of the second suspension side hinge portion 28a has the same shape as the base portion 36 of the first suspension side hinge portion 26a, the bearing portion 42 is positioned coaxially with the shaft portion 38.
[0034] Figure 7 is a top view of the vertical frame portion 24 and the first door-side hinge portion 26b. The vertical frame portion 24 has a rectangular tube portion 24a, a rail portion 24b, and an opening edge 24c. The vertical frame portion 24 has the same uniform cross-section as the top view shown in Figure 7. The rectangular tube portion 24a has a rectangular cross-section. The rail portion 24b is formed on the side surface of the rectangular tube portion 24a and forms an opening edge 24c that extends along the vertical direction.
[0035] The first door-side hinge portion 26b has a shaft hole portion 44, a vane portion 46, and a stepped portion 48. The shaft hole portion 44 is formed in a cylindrical shape and into which the shaft portion 38 can be inserted. The vane portion 46 protrudes from the outer surface of the shaft hole portion 44 and is fixed to the vertical frame portion 24. Screw holes for screw fixing are formed in the vane portion 46. A pair of stepped portions 48 extend along the vertical direction and enter the rail portion 24b, restricting the movement of the first door-side hinge portion 26b and acting as a guide when sliding. The first door-side hinge portion 26b is fastened with screws 47, sandwiching a pair of opening edges 24c between the vane portion 46 and a separate fastening fitting 49. The first door-side hinge portion 26b is temporarily held in place on the vertical frame portion 24 at any position on the rail portion 24b by fastening with the fastening fitting 49, and slides to connect to the first suspension-side hinge portion 26a.
[0036] Figure 8 is a top view of the hinge structure. The cover piece 21a and the beat 32 are located on the front F side and cover the hinge portion such as the first door side hinge portion 26b so as not to be exposed, and the rear cover 50 is located on the rear B side and covers the first door side hinge portion 26b so as not to be exposed. The rear cover 50 is fixed to the rail portion 24b of the vertical frame portion 24.
[0037] Although the first hinge portion 26a is not shown in Figure 8, the cover piece 21a covers the first hinge portion 26a as shown in Figure 3. The cover piece 21a also covers the second hinge portion 28a and the second door-side hinge portion 28b from the front F side.
[0038] Figure 9 is a top view of the vertical frame 24 and the second door-side hinge 28b. The second door-side hinge 28b has a shaft portion 52, a vane portion 54, and a stepped portion 56. The shaft portion 52 is formed in a cylindrical shape and can be inserted into the shaft hole portion 42a of the second hinge-side hinge 28a. The vane portion 54 protrudes from the outer surface of the shaft portion 52 and is fixed to the vertical frame 24 by screws or the like. The pair of stepped portions 56 extend along the vertical direction and enter the rail portion 24b, restricting the movement of the second door-side hinge 28b in the depth direction. The second door-side hinge 28b is fastened with screws 47, sandwiching the pair of opening edges 24c between the vane portion 54 and the fastening fitting 49.
[0039] Figure 10 is a diagram illustrating a method for attaching the door 18 to the hinge portion 20. The second hinge portion 28a is fixed to the hinge portion 20, and the second door-side hinge portion 28b is fixed to the vertical frame portion 24. The vertical frame portion 24 is fixed to the main body of the door 18. The second door-side hinge portion 28b has a shaft portion 58 that protrudes downward. The first hinge portion 26a may be fixed to the hinge portion 20 before the hinge portion 20 is fixed to the frame portion 14, may be fixed to the frame portion 14 at the same time as the hinge portion 20, or may be fixed to the hinge portion 20 after the hinge portion 20 is fixed to the frame portion 14. The second hinge portion 28a may be fixed to the hinge portion 20 before the hinge portion 20 is fixed to the frame portion 14, or it may be fixed to the hinge portion 20 after the hinge portion 20 is fixed to the frame portion 14.
[0040] The worker lifts the door 18, aligns the second door-side hinge portion 28b with the second hinge-side hinge portion 28a, and inserts the shaft portion 58 into the shaft hole portion 42a of the second hinge-side hinge portion 28a. This fixes the position of the door 18 and makes it easier for the worker to support the door 18. The shaft portion 58 of the second hinge unit 28 has a shorter axial length than the shaft portion 38 of the first hinge unit 26. The axial lengths of the shaft portion 58 and the shaft portion 38 indicate the length inserted into the shaft hole. This effectively suppresses rattling at the top of the door 18.
[0041] Figure 11 is a diagram illustrating the method of attaching the door 18 to the hinge part 20, and shows a process that follows Figure 10. The second hinge part 28a and the second door-side hinge part 28b are connected, aligning the positions of the first hinge part 26a and the first door-side hinge part 26b.
[0042] The first door-side hinge portion 26b is temporarily held in place on the vertical frame portion 24 at a position lower than the connection position to the first hinge-side hinge portion 26a. The worker releases the temporary hold of the first door-side hinge portion 26b and slides the first door-side hinge portion 26b upward along the vertical frame portion 24, inserting the shaft portion 38 of the first hinge-side hinge portion 26a into the shaft hole portion 44 of the first door-side hinge portion 26b.
[0043] The worker then fixes the first door-side hinge portion 26b to the vertical frame portion 24 with screws or the like, connecting the door 18 to the hinge portion 20. Finally, the worker attaches the back cover 50 to complete the installation work. Because the door support structure 10 has the top of the door 18 covered by the frame portion 14, the first hinge-side hinge portion 26a has a shaft portion 38 that hangs down, making it easier to attach the first door-side hinge portion 26b from below. By making the first door-side hinge portion 26b a shaft hole portion, the sliding parts can be simplified. The worker only needs to fix the first hinge-side hinge portion 26a and the second hinge-side hinge portion 28a to the positions of pre-formed holes in the hinge portion 20, making it easy to position the first hinge unit 26 and the second hinge unit 28, and improving workability.
[0044] The embodiments of this disclosure have been described in detail above. The embodiments described above are merely examples of how to implement this disclosure. The embodiments do not limit the technical scope of this disclosure, and many modifications are possible without departing from the spirit of the invention as defined in the claims.
[0045] In the embodiment, a configuration in which a side panel portion 16 is provided between the column portion 12 and the hinge portion 20 is shown, but the embodiment is not limited to this configuration. For example, the side panel portion 16 may not be provided, and the column portion 12 and the hinge portion 20 may be adjacent to each other. In any case, the hinge portion 20 is supported by the frame portion 14 and closes the gap between the support structure and the door.
[0046] In the first hinge unit 26, the first hinge portion 26a has a shaft portion and the first door-side hinge portion 26b has a shaft hole portion, but the invention is not limited to this embodiment. For example, the first hinge portion 26a may have a shaft hole portion and the first door-side hinge portion 26b may have a shaft portion that is inserted into the shaft hole portion of the first hinge portion 26a.
[0047] In the second hinge unit 28, an embodiment was shown in which the second hinge portion 28a has a shaft hole and the second door-side hinge portion 28b has a shaft portion, but the embodiment is not limited to this. For example, the second hinge portion 28a may have a shaft portion, and the second door-side hinge portion 28b may have a shaft hole for inserting the shaft portion of the second hinge portion 28a.
[0048] Although the second door-side hinge portion 28b of the second hinge unit 28 is shown to have an auto-close function, the invention is not limited to this embodiment, and the first door-side hinge portion 26b may also have an auto-close function. The second hinge-side hinge portion 28a may also be fixed to the embedded auxiliary portion 22.
[0049] Although the first hinge portion 26a is shown to be fixed to the suspension portion 20, the invention is not limited to this embodiment, and the first hinge portion 26a may be fixed to the frame portion 14. Although the second hinge portion 28a is shown to be fixed to the suspension portion 20, the invention is not limited to this embodiment, and the second hinge portion 28a may be fixed to the ground G.
[0050] Although an embodiment in which a pair of doors 18 are provided is shown, the embodiment is not limited to this, and there may be only one door 18. [Explanation of symbols]
[0051] 10 Door support structure, 12 Column section, 14 Frame section, 16 Side panel section, 18 Door, 20 Hinge section, 21 Main body section, 21a Cover piece, 22 Recessed auxiliary section, 24 Vertical frame section, 26a First hinge section, 26b First door hinge section, 28a Second hinge section, 28b Second door hinge section, 32 Bead, 34 Mounting bracket, 36 Base section, 38 Shaft section, 40 Spacer, 42 Bearing section, 42a, 44 Shaft hole section, 46 Wing plate section, 48 Step section, 50 Back cover, 52, 58 Shaft section.
Claims
1. The door and A support structure having a frame portion provided above the aforementioned door and fixed to the surface to be fixed, The hinge portion is supported by the frame portion, extends along the vertical direction, and is positioned to the side of the door, A door support structure characterized by comprising a hinge structure that rotatably connects the door to the aforementioned hinge portion.
2. The door support structure according to claim 1, characterized in that the lower end of the hinge portion is embedded in the fixed surface.
3. The hinge structure has a first hinge unit including a first door-side hinge portion fixed to the door and a first hinge-side hinge portion fixed to the hinge-side portion and rotatably connected to the first door-side hinge portion. The door support structure according to claim 1 or 2, characterized in that the first door-side hinge portion can be connected to the first suspension-side hinge portion by sliding vertically relative to the door.
4. The first door-side hinge portion has a shaft hole, The door support structure according to claim 3, characterized in that the first hinge portion has a shaft portion that is inserted into the shaft hole portion from above.
5. The hinge structure has a first hinge unit including a first door-side hinge portion fixed to the door and a first hinge-side hinge portion fixed to the hinge-side portion and rotatably connected to the first door-side hinge portion. The first door-side hinge portion is fixed to the side of the door, The door support structure according to claim 1 or 2, characterized in that the hinge portion protrudes toward the door side in the left-right direction and has a cover piece that covers the first door side hinge portion from the front side.
6. The door support structure according to claim 3, characterized in that the hinge structure has a second hinge unit which is fixed to the hinge end and the door at a position lower than the first hinge unit and which rotatably connects the door to the hinge end.
7. The door support structure according to claim 3, characterized in that the first hinge portion is fixed to a mounting bracket fixed to the frame portion.
8. A door installation method for installing a door on a support structure that has a frame portion extending horizontally and is fixed on a surface to be fixed, The steps include fixing the hinge-side hinge portion to either the frame portion or the hinge portion that extends vertically and is positioned to the side of the door, The steps include: supporting the suspension portion with the frame portion, A door installation method characterized by including the step of rotatably connecting a door-side hinge portion provided on the door to the hinge-side hinge portion.