Hinged door structure
The hinged door structure uses fastening members with a larger head that secures inside an opening with a narrower section, addressing the risk of door detachment and simplifying installation.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- AGC INC
- Filing Date
- 2024-10-24
- Publication Date
- 2026-05-12
AI Technical Summary
Existing hinged doors in showcases can fall off during earthquakes, posing a risk of injury, and attaching fastening members to prevent this increases the number of installation steps.
A hinged door structure with fastening members that have a head larger than the main body portion, allowing easy connection by passing through an opening with a narrower section to secure the head inside, and optionally using a retaining member to fix it in place.
Facilitates easy and secure attachment of the hinged door to the building structure, reducing the risk of detachment and simplifying the installation process.
Smart Images
Figure 2026076679000001_ABST
Abstract
Description
Technical Field
[0007] , , , ,
[0006]
[0001] The present invention relates to a hinged door structure.
Background Art
[0002] In stores such as retail stores, there may be cases where a showcase equipped with a transparent hinged door is placed. For example, Patent Document 1 discloses a showcase equipped with a glass hinged door.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] When a shock exceeding a predetermined level is applied to the showcase during an earthquake or the like, the hinged door may fall off from the showcase body. In order to prevent the fallen hinged door from hitting a person, it is conceivable to connect the hinged door to the showcase body using a fastening member. As the fastening member, for example, a wire having one end connected to the hinged door and the other end connected to the showcase body can be considered. However, if a fastening member is provided, the number of steps required when attaching the hinged door to the showcase body will increase.
[0005] In view of the above problems, an object of the present invention is to provide a hinged door structure provided with a fastening member that can easily connect the hinged door and the body.
Means for Solving the Problems
[0006] The hinged door structure according to one aspect of the present disclosure has the following configuration.
[0007] [1] A hinged door structure in which a hinged door is attached to the building structure so as to be able to open and close, The hinged door and the building frame are connected by fastening members, The fastening member has a head at the end that connects to the building structure. An opening is provided at the location where the fastening member of the aforementioned structure is connected. The major axis of the head is larger than the major axis of the main body portion of the fastening member. The minor diameter of the head is smaller than the opening width of at least a portion of the opening. The fastening member, after passing its head through the opening, remains with its head inside the opening. Hinged door structure.
[0008] [2] A hinged door structure in which a hinged door is attached to the building structure so as to be able to open and close, The hinged door and the building frame are connected by fastening members, The fastening member has a head at the end that connects to the hinged door, An opening is provided at the location where the fastening member of the aforementioned hinged door is connected. The major axis of the head is larger than the major axis of the main body portion of the fastening member. The minor diameter of the head is smaller than the opening width of at least a portion of the opening. The fastening member, after passing its head through the opening, remains with its head inside the opening. Hinged door structure.
[0009] [3] The fastening member is secured so that its head is placed inside the opening after passing it through the opening, and a retaining member is attached to a part of the opening. The hinged door structure described in [1] or [2].
[0010] [4] The opening has a wide section with a wider opening width and a narrow section with a narrower opening width than the wide section. The minor diameter of the head is smaller than the opening width of the wide part. The major diameter of the head is larger than the opening width of the narrow-width portion. The fastening member holds the head within the opening in a state where the head is moved to the narrow-width portion after passing the head through the wide-width portion. The opening door structure according to any one of [1] to [3].
[0011] [5] The major diameter of the head is reversibly adjustable. The fastening member holds the head within the opening when the major diameter of the head expands after passing the head through the opening while reducing the major diameter of the head. The opening door structure according to [1] or [2].
[0012] [6] The narrow-width portion is provided in a direction in which the head can apply a force to the opening when the fastening member is pulled due to the dropping of the opening door with respect to the wide-width portion. The opening door structure according to [4].
[0013] [7] A plurality of narrow-width portions are provided. The opening door structure according to [4] or [6].
[0014] [8] The opening is a circular opening for the wide-width portion, and the narrow-width portion is an elongated opening extending outward from the edge of the wide-width portion. The opening door structure according to [4], [6] or [7].
[0015] [9] The opening is a wedge-shaped opening, the wide-width portion is the wide side end, and the narrow-width portion is the narrow side end. The opening door structure according to [4], [6] or [7].
[0016]
[10] The major diameter of the main body portion of the fastening member is 0.5 mm or more and 3.0 mm or less. The opening door structure according to any one of [1] to [9].
[0017]
[11] The fastening member is attached to the upper half of the hinged door. A hinged door structure as described in any of [1] to
[10] .
[0018]
[12] The head is spherical, ellipsoidal, cylindrical, or polyhedral. A hinged door structure as described in any of [1] to
[11] .
[0019]
[13] The fastening member has a second head portion at the end that connects to the hinged door. A second opening is provided at the location where the fastening member of the aforementioned hinged door is connected. The major axis of the second head is larger than the major axis of the main body portion of the fastening member. The minor axis of the second head is smaller than the opening width of at least a portion of the second opening. The fastening member is such that after passing the second head through the second opening, the second head remains inside the second opening. A hinged door structure as described in [1], [3] to
[12] .
[0020]
[14] The second narrow portion is positioned relative to the second wide portion so that the second head can apply force to the hinged door when the fastening member is pulled due to the hinged door falling off. The hinged door structure described in
[13] .
[0021]
[15] The retaining member is capable of attaching other members constituting the hinged door structure to the building frame. The retaining member secures the head of the fastening member within the opening and fixes the other members to the building structure. A hinged door structure as described in any of [3] to
[14] .
[0022]
[16] The fastening member is a screw, tape, cap, or push rivet. A hinged door structure as described in any of [3] to
[15] .
[0023]
[17] The opening is structured to allow for some slack so that the fastening member, which is located within the opening, can move. A hinged door structure as described in any of [1] to
[16] .
[0024]
[18] The fastening member is a wire, metal rod, metal wire, or other member having a predetermined strength. A hinged door structure as described in any of [1] to
[16] . [Effects of the Invention]
[0025] The present invention provides a hinged door structure equipped with fastening members that allow for easy connection between the hinged door and the building structure. [Brief explanation of the drawing]
[0026] [Figure 1] This is a partially exploded view showing an example of the configuration of the hinged door structure according to Embodiment 1. [Figure 2] This is a close-up view of a part of a hinged door. [Figure 3] This is a partially enlarged view of the hinged door structure according to Embodiment 1. [Figure 4] This is a schematic diagram showing one example of the configuration of a fastening member. [Figure 5] This is a schematic diagram showing one example of the structure of a building. [Figure 6] This is a schematic diagram showing one example of the structure of a building. [Figure 7] This is a schematic diagram showing one example of the structure of a building. [Figure 8] This is a schematic diagram showing other examples of structural configurations. [Figure 9] This is a schematic diagram showing other examples of structural configurations. [Figure 10] This is a schematic diagram showing other examples of structural configurations. [Figure 11]This is a schematic diagram showing other examples of structural configurations. [Figure 12] This is a schematic diagram showing other examples of structural configurations. [Figure 13] This is a schematic diagram showing other examples of structural configurations. [Figure 14] This is a schematic diagram showing other examples of structural configurations. [Figure 15] This is a schematic diagram showing other examples of structural configurations. [Figure 16] This is a schematic diagram showing other configuration examples of fastening members. [Figure 17] This is a schematic diagram showing other configuration examples of fastening members. [Figure 18] This is a schematic diagram showing other configuration examples of fastening members. [Figure 19] This is a schematic diagram showing other configuration examples of fastening members. [Figure 20] This is a schematic diagram showing other configuration examples of fastening members. [Figure 21] This is a schematic diagram showing other configuration examples of fastening members. [Figure 22] This is a schematic diagram showing other configuration examples of fastening members. [Figure 23] This is a schematic diagram showing an example of the configuration of the fastening members included in the hinged door structure according to Embodiment 2. [Figure 24] This is a schematic diagram showing one example of the structure of a building. [Figure 25] This is a schematic diagram showing one example of the structure of a building. [Figure 26] This is a schematic diagram showing other configuration examples of fastening members. [Figure 27] This is a schematic diagram showing other examples of structural configurations. [Figure 28] This is a schematic diagram showing other examples of structural configurations. [Figure 29] This is a schematic diagram showing other configuration examples of fastening members. [Figure 30] This is a schematic diagram showing other examples of structural configurations. [Figure 31] This is a schematic diagram showing other examples of structural configurations. [Figure 32] This is a schematic diagram showing other examples of structural configurations. [Figure 33]This is a schematic diagram showing other examples of structural configurations. [Figure 34] This is a schematic diagram showing other examples of structural configurations. [Modes for carrying out the invention]
[0027] Embodiments of the present invention will now be described with reference to the drawings. In each drawing, the same or corresponding elements are denoted by the same reference numerals, and redundant explanations are omitted as necessary for clarity of explanation. In this specification, the "~" indicating a numerical range includes the numbers written before and after it as the lower and upper limits.
[0028] <Embodiment 1> Figure 1 is a partially exploded view showing an example of the configuration of a hinged door structure 10 according to Embodiment 1. The hinged door structure 10 is a structure in which a hinged door 200 is attached to a frame 100, and the frame 100 and the hinged door 200 are fastened to each other by fastening members 300. The frame 100 is a box-shaped frame and may be equipped with a temperature control device (not shown) for adjusting the temperature inside the frame. The frame 100 is used, for example, as a refrigerated display case. The frame 100 is provided with a door fitting section 108. The door fitting section 108 is a rectangular opening. The hinged door 200 is attached to the door fitting section 108 so as to be openable and closable.
[0029] The hinged door 200 is a door with a shape corresponding to the door fitting portion 108. Figure 1 illustrates the state in which the hinged door 200 is detached from the building structure 100. A hinge 208 is provided on either the left or right side of the upper or lower edge of the hinged door 200. In the example shown in Figure 1, the hinge 208 is provided on the right side of the hinged door 200. The hinge 208 is, for example, a cylindrical member with a hollow interior. The hinged door 200 is mounted so that it can be opened and closed using the side on which the hinge 208 is provided as an axis. The hinged door 200 is a transparent door that allows visibility into the building structure 100, and may be, for example, a glass door, but is not particularly limited. The detailed configuration of the building structure 100 and the hinged door 200 is not particularly limited and may be general in nature.
[0030] Figure 2 is a magnified view of a portion of the hinged door 200. In addition to the hinged door 200, Figure 2 also shows a fastening member 300. The hinged door 200 comprises a rectangular frame 202 and a glass plate 203 fitted into the frame 202. The fastening member 300 is attached to the upper half of the hinged door 200. For example, in the example shown in Figure 2, the fastening member 300 is attached to the upper edge of the hinged door 200. A heater (not shown) for heating the hinged door 200 may be placed inside the frame 202. The cord 201 shown in Figure 2 is connected to the heater placed inside the frame 202 and supplies electricity to the heater. As shown in Figure 2, the cord 201 may pass through the hinge 208 of the hinged door 200. The hinged door 200 is opened and closed using the hinge 208 as the axis of rotation. Therefore, by passing the cord 201 through the hinge 208, the cord 201 is less likely to twist when the hinged door 200 is opened and closed.
[0031] Figure 3 is a magnified view of a portion of the upper part of the hinged door 200 when it is attached to the building structure 100. As shown in Figure 3, the hinged door 200 is attached to the building structure 100 using a hinge receiver 109. The hinge receiver 109 is a component that is combined with the hinge 208 and has a U-shaped protrusion, for example, as shown in Figure 3. As will be described in detail later, one end of the fastening member 300 is connected to the hinged door 200 and the other end is connected to the building structure 100.
[0032] The fastening member 300 is a member for fastening the hinged door 200 to the frame 100. The fastening member 300 is not particularly limited as long as it has a predetermined strength, and may be, for example, a wire, a metal rod, a metal wire, or any other member having a predetermined strength. In the example shown in Figure 4, the case in which the fastening member 300 is a wire is illustrated. As shown in Figure 4, in this embodiment, a loop 303 is provided at one end of the fastening member 300, and a head 302 is provided at the other end. A main body portion 301 is provided in the central part of the fastening member 300. The main body portion 301 comprises a core wire 304 and a cover 305. The core wire 304 is a linear member, for example, a metal wire. The material constituting the core wire 304 is not particularly limited, and may be, for example, stainless steel SUS304. The cover 305 is a resin member provided so as to cover the core wire 304. The material constituting the cover 305 is not particularly limited, and may be, for example, polyethylene. The thickness of the core wire 304 is selected according to the weight of the hinged door 200. The thickness of the core wire 304 may be, for example, about 0.5 to 3 mm. When the fastening member 300 is passed through the hinge 208 as shown in Figure 2, it is preferable that the core wire 304 has a certain degree of flexibility or greater from the viewpoint of ease of installation. Hereinafter, the largest dimension of the main body portion 301 in the direction perpendicular to the extension direction of the main body portion 301 may be referred to as the "major axis of the main body portion 301". If the main body portion has a substantially circular cross-section, the major axis of the main body portion 301 corresponds to the diameter of the cross-section obtained by cutting the main body portion 301 in a direction perpendicular to the extension direction.
[0033] A head 302 is attached to one end of the core wire 304. Hereinafter, the largest dimension of the head 302 in the direction perpendicular to the extension direction of the main body portion 301 may be referred to as the "major axis of the head 302." Also, the smallest dimension of the head 302 in the direction perpendicular to the extension direction of the main body portion 301 may be referred to as the "minor axis of the head 302." As shown in Figure 4, when the head 302 is spherical, the major axis and minor axis of the head 302 coincide and correspond to the diameter of the head 302. The major axis of the head 302 is larger than the major axis of the main body portion 301. The end of the core wire 304 to which the head 302 is not attached forms a loop 303. The loop 303 is fixed to the main body portion 301 using a fastener 306. As shown in Figure 2, the loop 303 is fixed to the frame material 202 using a bolt 209.
[0034] Next, with reference to Figures 5-7, the method of connecting the head portion 302 to the frame 100 will be described. An opening 101 is provided at the location on the frame 100 where the fastening member 300 is to be attached. In this embodiment, the opening 101 comprises a narrow portion 102 and a wide portion 103. In the example shown in Figure 5, the wide portion 103 is a circular opening, and the narrow portion 102 is an elongated opening extending from the edge of the wide portion 103. Hereinafter, the dimension of the narrow portion 102 in a direction perpendicular to the direction extending from the wide portion 103 toward the narrow portion 102 may be referred to as the "opening width of the narrow portion 102". The dimension of the wide portion 103 in a direction perpendicular to the direction extending from the wide portion 103 toward the narrow portion 102 may be referred to as the "opening width of the wide portion 103".
[0035] The minor axis of the head 302 is smaller than the opening width of at least a portion of the opening 101. In the example shown in Figure 5, the minor axis of the head 302 is smaller than the opening width of the wide portion 103. Also in the example shown in Figure 5, the opening width of the narrow portion 102 is smaller than the minor axis of the head 302 and larger than the major axis of the main body portion 301. When connecting the fastening member 300 to the frame 100, first, the head 302 is inserted into the frame 100 from the wide portion 103. Next, as shown in Figure 6, the head 302 is moved towards the narrow portion 102. Next, as shown in Figure 7, the retaining member 104 is attached to the wide portion 103. The retaining member 104 is a member for securing the head 302 inside the opening 101 by filling the wide portion 103, and is, for example, a screw, tape, cap, or push rivet. In the example shown in Figure 7, the retaining member 104 is a push rivet.
[0036] The retaining member 104 may also have the function of attaching other members (not shown) that constitute the hinged door structure 10 to the building frame 100. In other words, a screw or other member used to attach a predetermined other member to the building frame 100 may also be used as the retaining member 104. In this case, the retaining member 104 secures the head 302 of the fastening member 300 inside the opening 101 and fixes the other member to the building frame 100.
[0037] As shown in Figure 7, by attaching the retaining member 104 to the wide section 103 with the head 302 positioned inside the frame 100, the head 302 can be kept inside the opening 101 without being fixed. Since the head 302 is not fixed and the major axis of the main body 301 is smaller than the opening width of the narrow section 102, the head 302 is movable inside the opening 101. In other words, the opening 101 is designed with enough clearance to allow the head 302, which is kept inside the opening 101, to move. The twisting of the fastening member 300 that occurs when the hinged door 200 is opened and closed can be eliminated by the rotation of the head 302. Furthermore, the connection of the fastening member 300 to the frame 100 is simply a matter of inserting the head 302 into the pre-existing opening 101 and attaching the retaining member 104, as described above. Therefore, the fastening member 300 can be connected to the building structure 100 without significantly increasing the number of steps involved in attaching the hinged door 200 to the building structure 100.
[0038] It is preferable that the narrow portion 102 is positioned in a direction such that the head 302 can apply force to the opening 101 when the fastening member 300 is pulled due to the detachment of the hinged door 200, relative to the wide portion 103. For example, as shown in Figure 3, if the opening 101 is located to the left of the hinge receiver 109, it is considered that the fastening member 300 will be pulled to the right when the hinged door 200 detaches. Therefore, it is preferable that the narrow portion 102 be positioned to the right of the wide portion 103. By positioning the narrow portion 102 in a direction such that the head 302 can apply force to the opening 101, it becomes more difficult for the head 302 to apply force to the retaining member 104 when the hinged door 200 detaches, thus suppressing the detachment of the retaining member 104.
[0039] In the example shown in Figure 3, etc., a case is illustrated in which one opening 101 is provided in the frame 100, but the frame 100 may have multiple openings 101. For example, in the example shown in Figure 8, two openings 101a and 101b are provided in the frame 100 in that order from left to right. The two openings 101a and 101b have narrower sections in the direction that they approach each other. Also in the example shown in Figure 8, three hinge receiver mounting holes 106a, 106b, and 106c are provided in the frame 100 in that order from left to right. Furthermore, in the example shown in Figure 8, member mounting holes 107 are provided for attaching other members to the frame 100. The hinge receiver mounting holes 106a, 106b, and 106c are openings for attaching hinge receivers 109. The worker selects two of the hinge receiver mounting holes 106a, 106b, and 106c as mounting locations for the hinge receiver 109, depending on the opening and closing direction of the hinge door 200, and then installs the hinge door 200. For example, if hinge receiver mounting holes 106b and 106c are selected and a hinge door 200 that opens and closes with the right side as the pivot axis is installed, the fastening member 300 is attached to the opening 101a. By installing the hinge door 200 and the fastening member 300 in this combination, it is made less likely for the head 302 to apply force to the retaining member 104 when the hinge door 200 falls off.
[0040] In the example shown in Figure 2, the fastening member 300 is attached to an opening 101 provided on the upper side of the door fitting portion 108. However, the opening 101 can be provided at any position in the upper half of the building structure 100. For example, as shown in Figure 9, the opening 101 may be provided above the wall that forms the right or left side of the door fitting portion 108. In this case, since the fastening member 300 is pulled upward when the hinged door 200 falls out, the narrow portion 102 is provided to extend upward from the wide portion 103.
[0041] In the example shown in Figure 5, the opening 101 is shown to have one narrow section 102, but the opening 101 may have multiple narrow sections 102. For example, in the example shown in Figure 10, the building structure 110 is provided with an opening 111. The opening 111 comprises one wide section 113 and two narrow sections 112a and 112b. The two narrow sections 112a and 112b are provided on the left and right sides of the wide section 113. The worker considers the direction in which the head 302 can apply force to the opening 111 when the hinged door 200 falls, based on the structure of the hinged door 200, and decides which of the narrow sections 112a and 112b the fastening member 300 should be positioned to attach the retaining member 104.
[0042] In this embodiment, the shape of the opening is not particularly limited, as long as at least a portion functions as a narrow section and at least a portion functions as a wide section. Hereinafter, variations in the shape of the opening will be described with reference to Figures 11 to 15. The structure 120 shown in Figure 11 has a wedge-shaped opening 121. The narrow end of the opening 121 functions as a narrow section 122, and the other side functions as a wide section 123. The structure 130 shown in Figure 12 has an elongated hexagonal opening 131. With the elongated direction of the opening 131 being the left-right direction, the left and right portions function as narrow sections 132a and 132b, and the central portion functions as a wide section 133.
[0043] The structure 140 shown in Figure 13 has an opening 141. The opening 141 has a rectangular wide section 143 and two narrow sections 142a and 142b extending to the left and right of the wide section 143. The structure 150 shown in Figure 14 also has an opening 151. The opening 151 has a rectangular wide section 153 and one narrow section 152 extending to the right of the wide section 153. The structure 160 shown in Figure 15 has an opening 161 with a wedge shape, where the thicker end becomes a uniform thickness from the middle. The part that becomes a uniform thickness functions as the wide section 163, and the narrower part of the wedge shape functions as the narrow section 162.
[0044] In the examples shown in Figure 4, etc., the head 302 is shown to be spherical, but the shape of the head 302 is not particularly limited. Hereinafter, with reference to Figures 16 to 21, variations in the shape of the head 302 will be described. For example, the fastening member 310 shown in Figure 16 has an ellipsoidal head 312. The fastening member 320 shown in Figure 17 has a cubic head 322. The fastening member 330 shown in Figure 18 has a cylindrical head 332 with rounded corners. The fastening member 340 shown in Figure 19 has a conical head 342. The fastening member 350 shown in Figure 20 has a head 352 shaped like a cone on top of a cylinder. The fastening member 360 shown in Figure 21 has a head 362 shaped like a sphere on top of a cylinder.
[0045] In the above embodiment, the case in which the head 302 is provided on the side of the fastening member 300 that is attached to the building structure 100 was described, but this disclosure is also applicable to the case in which the head 302 is provided on the side of the fastening member that is attached to the hinged door 200. In this case, an opening 101 is provided at the location on the hinged door 200 where the fastening member is to be attached, and the fastening member 300 is attached to the hinged door 200 by the procedure described with reference to Figures 5 to 7. When an opening 101 is provided in the hinged door 200, it is preferable to provide a narrow portion 102 in a direction that allows the head 302 to apply force to the opening 101 when the hinged door 200 falls off. When the head 302 is provided on the side of the fastening member that is attached to the hinged door 200, the other end of the fastening member 300 may be a loop 303. In this case, the loop 303 is fixed to the building structure 100 using a bolt or the like. Also, as shown in Figure 22, heads 372 and 373 may be provided at both ends of the fastening member 370. In this case, an opening 101 is provided in both the building frame 100 and the hinged door 200, and the fastening member 300 is attached to the building frame 100 and the hinged door 200 according to the procedure described with reference to Figures 5 to 7.
[0046] <Embodiment 2> Embodiment 1 described a case in which the opening has a narrow section and a wide section. However, the opening does not have a narrow section and a wide section, as long as the head of the fastening member can be secured inside the opening. For example, the fastening member 380 shown in Figure 23 has a T-shaped head 382. Figure 24 is a diagram showing an example of a building frame 170 to which the fastening member 380 can be attached. As shown in Figure 24, the building frame 170 has an elongated opening 171 of constant width. The dimension in the short side direction of the opening 171 is referred to as the "opening width of the opening 171". The thickness of the head 382 is smaller than the opening width of the opening 171. Therefore, as shown in Figure 24, the head 382 is inserted into the building frame 100 through the opening 171. As shown in Figure 25, with the head 382 positioned inside the building frame 100, the worker closes a portion of the opening 171 using a retaining member 174. At this time, the retaining member 174 is positioned so that the head 382 cannot pass through the unblocked portion of the opening 171. For example, the retaining member 174 blocks the opening 171 such that the length of the opening 171 is smaller than the length from end to end of the arm portions of the head 382.
[0047] <Embodiment 3> Embodiments 1 and 2 describe a case in which the head of the fastening member is retained inside the opening by using a retaining member to block a part of the opening. However, if the configuration allows the head of the fastening member to be retained inside the opening, a retaining member may not be used. For example, the fastening member 390 shown in Figure 26 has a hook-shaped head 392. Figure 27 shows an example of a building frame 180 to which the fastening member 390 can be attached. The building frame 180 is provided with an opening 181. The opening 181 includes a head insertion opening 182 and a tip insertion opening 183. The head insertion opening 182 is an opening shaped to allow the insertion of the head 392. The tip insertion opening 183 is an opening into which the tip portion of the head 392 can be inserted. When attaching the fastening member 390 to the building frame 180, first, as shown in Figure 27, the head 392 is inserted through the head insertion opening 182. Next, as shown in Figure 28, the tip of the head 392 is inserted into the tip insertion opening 183 from the inside of the body 180 so that it exits the body 180. In this way, the head 392 is secured within the opening 181.
[0048] As another example of a configuration in which the head of a fastening member is retained within an opening without using a retaining member, the fastening member 400 shown in Figure 29 will be described. As shown in Figure 29, the fastening member 400 has a head 401. The head 401 has a cylindrical central part 402 and wing parts 403 that are radially provided from the tip of the central part 402. The wing parts 403 are reversibly deformable. That is, by deforming the wing parts 403, the major axis of the head 401 is reversibly changed. Figure 30 is a diagram showing an example of a frame 190 to which the fastening member 400 can be attached. The frame 190 is provided with an opening 191. The major axis of the opening 191 is smaller than the major axis of the head 401 when no force is applied to the wing parts 403, and larger than the major axis of the head 401 when force is applied to the wing parts 403. Therefore, as shown in Figure 30, the head 401 is inserted into the opening 191 by retracting the wing portion 403. Once the entire head 401 has passed through the body 190, no force is applied to the wing portion 403 from the body 190, and the wing portion 403 returns to its original shape as shown in Figure 31. When the wing portion 403 returns to its original shape, the tip of the wing portion 403 catches, and the head 401 is retained inside the opening 191.
[0049] As another example of a configuration in which the head of a fastening member is retained within an opening without the use of a retaining member, the building structure 500 shown in Figure 32 is described. The building structure 500 is provided with an opening 501. The opening 501 comprises a narrow section 502 and a wide section 503. As shown in Figure 32, the hinged door 200 connected to the fastening member 300 is attached to the building structure 500 with the head 302 inserted from the wide section 503 and then moved to the tip of the narrow section 502. At this time, the length A of the main body portion 301 of the fastening member 300 is designed to be shorter than the dimension B in the extension direction of the narrow section 502. With the length A and dimension B designed in this way, even if the head 302 moves within the building structure 500, the head 302 will not move to the wide section 503. Therefore, the head 302 remains within the opening 501.
[0050] As another example of a configuration in which the head of a fastening member is secured within an opening without using a retaining member, the structural frame 510 shown in Figure 33 will be described. The structural frame 510 is provided with an opening 511. The opening 511 is an elongated opening of constant width, and a fastening member 380 having a T-shaped head 382 can be attached to it. The dimension in the short side direction of the opening 511 will be called the "opening width of the opening 511". The thickness of the head 382 will be called the "minor diameter of the head 382", and the dimension from end to end of the arms of the head 382 will be called the "major diameter of the head 382". The minor diameter of the head 382 is smaller than the opening width of the opening 511. The dimension in the long side direction of the opening 511 is also smaller than the major diameter of the head 382. Therefore, as shown in Figure 33, the worker inserts the head 382 into the structural frame 510 by inserting one arm of the head 382 into the opening 511 at a time. As shown in Figure 34, when both arms of the head 382 are inserted into the body 510, the head 382 does not come out of the body 510 because the arms get caught. Therefore, the head 382 remains inside the opening 511.
[0051] Although the present invention has been described above in accordance with the above embodiments, the present invention is not limited to the configuration of the above embodiments, and of course includes various modifications, alterations, and combinations that can be made by a person skilled in the art within the scope of the claims of the present patent application. [Explanation of Symbols]
[0052] 10. Hinged door structure 100,110,120,130,140,150,160,170,180,190,500,510 Body 101,101a,101b,111,121,131,141,151,161,171,181,191,501,511 Opening 102,112a,112b,122,132a,132b,142a,142b,152,162,502 Narrow part 103,113,123,133,143,153,163,503 Wide section 104,174 Retaining member 106a, 106b, 106c Hinge mounting holes 107 Mounting holes for components 108 Door mounting section 109 Hinge receiver 182 Head insertion port 183 Tip insertion opening 200 hinged doors 201 Code 202 Frame material 203 Glass plate 208 Hinge 209 volts 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400 Fastening members 301 Main body part 302,312,322,332,342,352,362,372,373,382,392,401 Head 303 Loop 304 core wire 305 Cover 306 Fasteners 402 Central part 403 Hanebe
Claims
1. A hinged door structure in which a hinged door is attached to the building structure so as to be able to open and close, The hinged door and the building frame are connected by fastening members, The fastening member has a head at the end that connects to the building structure. An opening is provided at the location where the fastening member of the aforementioned structure is connected. The major axis of the head is larger than the major axis of the main body portion of the fastening member. The minor diameter of the head is smaller than the opening width of at least a portion of the opening. The fastening member, after passing its head through the opening, remains with its head inside the opening. Hinged door structure.
2. A hinged door structure in which a hinged door is attached to the building structure so as to be able to open and close, The hinged door and the building frame are connected by fastening members, The fastening member has a head at the end that connects to the hinged door, An opening is provided at the location where the fastening member of the aforementioned hinged door is connected. The major axis of the head is larger than the major axis of the main body portion of the fastening member. The minor diameter of the head is smaller than the opening width of at least a portion of the opening. The fastening member, after passing its head through the opening, remains with its head inside the opening. Hinged door structure.
3. The fastening member is secured so that its head is placed inside the opening after passing it through the opening, and a retaining member is attached to a part of the opening. The hinged door structure according to claim 1 or 2.
4. The opening has a wide section with a wider opening width and a narrow section with a narrower opening width than the wide section. The minor diameter of the head is smaller than the opening width of the wide part. The major diameter of the head is greater than the opening width of the narrow part. The fastening member is such that after passing its head through the wide portion, the head is moved to the narrow portion and the head is retained within the opening. The hinged door structure according to claim 1 or 2.
5. The head has a reversible adjustment of its major axis. The fastening member is secured to the opening by reducing the major diameter of the head as it passes through the opening, and then expanding the major diameter of the head. The hinged door structure according to claim 1 or 2.
6. The narrow portion is positioned relative to the wide portion so that when the fastening member is pulled due to the detachment of the hinged door, the head of the narrow portion can apply force to the opening. The hinged door structure according to claim 4.
7. The aforementioned narrow section is provided in multiple locations. The hinged door structure according to claim 4.
8. The opening is such that the wider portion is a circular opening, and the narrower portion is an elongated opening extending outward from the edge of the wider portion. The hinged door structure according to claim 4.
9. The opening is wedge-shaped, the wider portion is the wider end, and the narrower portion is the narrower end. The hinged door structure according to claim 4.
10. The major diameter of the main body portion of the fastening member is 0.5 mm or more and 3.0 mm or less. The hinged door structure according to claim 1 or 2.
11. The fastening member is attached to the upper half of the hinged door. The hinged door structure according to claim 1 or 2.
12. The head is spherical, ellipsoidal, cylindrical, or polyhedral. The hinged door structure according to claim 1 or 2.
13. The fastening member has a second head portion at the end that connects to the hinged door. A second opening is provided at the location where the fastening member of the aforementioned hinged door is connected. The major axis of the second head is larger than the major axis of the main body portion of the fastening member. The minor axis of the second head is smaller than the opening width of at least a portion of the second opening. The fastening member is such that after passing the second head through the second opening, the second head remains inside the second opening. The hinged door structure according to claim 1.
14. The second opening has a second wide portion with a wider opening width and a second narrow portion with a narrower opening width than the second wide portion. The second narrow portion is positioned relative to the second wide portion so that the second head can apply force to the hinged door when the fastening member is pulled due to the hinged door falling off. The hinged door structure according to claim 13.
15. The retaining member is capable of attaching other members constituting the hinged door structure to the building frame. The retaining member secures the head of the fastening member within the opening and fixes the other members to the building structure. The hinged door structure according to claim 3.
16. The fastening member is a screw, tape, cap, or push rivet. The hinged door structure according to claim 3.
17. The opening is structured to allow for some slack so that the fastening member, which is located within the opening, can move. The hinged door structure according to claim 1 or 2.
18. The fastening member is a wire, metal rod, metal wire, or other member having a predetermined strength. The hinged door structure according to claim 1 or 2.