Fitting

The fitting design addresses the aesthetic impairment issue by hiding the lock receiving member behind a protrusion, enhancing the appearance and reducing costs through shared material usage.

JP2026006183APending Publication Date: 2026-01-16YKK AP INC
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Patent Information

Application Number
JP2024104997
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

Conventional fittings with a freely rotating door and a protruding latch receiver impair the design due to the latch receiver being exposed between the door frame and the door edge, affecting the aesthetic appearance.

Method used

A fitting design featuring a frame with a protruding protrusion that hides the lock receiving member by positioning it behind the protrusion, using a latch bolt that retracts and inserts into a hidden lock receiving member, ensuring the lock receiving member is less noticeable and maintaining a clean aesthetic.

Benefits of technology

The design enhances the aesthetic appeal by minimizing the visibility of the lock receiving member, maintaining a neat appearance and reducing costs through shared material usage, while ensuring the protrusion is not damaged by the latch bolt.

✦ Generated by Eureka AI based on patent content.

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    Figure 2026006183000001_ABST
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Abstract

To provide fittings excellent in design.SOLUTION: A fitting including a frame body forming an opening and a door rotatably supported by the frame body and capable of closing the opening, the door including a latch bolt capable of protruding from and retracting into a door head-side facing surface, the frame body including a door head-side vertical frame provided on a door head side of the door, the door head-side vertical frame has a frame body-side viewed surface facing the door head-side viewed surface of the closed door, and a projecting portion projecting from the frame body-side viewed surface, and a lock receiving member having a contact portion with which the latch bolt comes into contact to move the latch bolt in a retracting direction when the door head of the opened door moves to one side in the viewed direction and closes, and a hole portion into which the latch bolt having passed through the contact portion projects and is inserted is attached to the frame body-side viewed surface on one side of the projecting portion in the viewed direction.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] The present invention relates to a fitting having a door pivotably supported on a frame. [Background technology]

[0002] Conventionally, a type of fitting that has a door supported on a frame so that it can rotate freely has been known, in which a spring-loaded latch claw is provided at the tip of the door, and a latch receiver with a hole in which the latch claw fits is provided in the door frame that forms the frame (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-324402 Summary of the Invention [Problem to be solved by the invention]

[0004] In fittings equipped with a latch as described above, the latch receiver is provided to protrude toward the door from the door frame so that when the door is closed, the latch claw comes into contact with the latch receiver and the door rotates while the latch claw is retracted into the door. Because the latch receiver protrudes toward the door from the door frame, the latch receiver is largely exposed between the door frame and the edge of the door when viewed from the side where the door is opening, which creates a problem of impairing the design of the fitting.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide a fitting with excellent design. [Means for solving the problem]

[0006] The main invention for achieving this object is a fixture having a frame body that forms an opening, and a door that is rotatably supported on the frame body and can close the opening, wherein the door has a latch bolt that protrudes from the door-edge side visible surface and is retractable, the frame body has a door-edge side vertical frame that is provided on the door-edge side of the door, and the door-edge side vertical frame has a frame side visible surface that faces the door-edge side visible surface of the closed door, and a protrusion that protrudes from the frame side visible surface, and the frame side visible surface has a lock receiving member that has a contact portion that the latch bolt comes into contact with and moves the latch bolt in the retracting direction when the door edge of the open door moves to one side in the visible direction to close, and a hole portion into which the latch bolt protrudes and is inserted after passing through the contact portion, attached to one side in the visible direction of the protrusion. Other features of the present invention will become apparent from the description of this specification and the accompanying drawings. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide fittings with excellent design. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a view of the fittings according to this embodiment as seen from the guest room side. [Figure 2] FIG. 2 is a cross-sectional view of the fitting according to the present embodiment. [Figure 3] 3(a) is a front view of the lock receiving member, FIG. 3(b) is a cross-sectional view taken along line AA in FIG. 3(a), and FIG. 3(c) is a cross-sectional view taken along line BB in FIG. 3(a). [Figure 4] This is an oblique view showing the lock receiving member attached to the door end vertical frame. [Figure 5] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a fitting according to one embodiment of the present invention will be described with reference to the drawings. As an example of a fixture related to this embodiment, we will explain a bathroom fixture (hereinafter referred to as fixture) 1, which is installed in a hotel bathroom, etc., and is supported on a frame so that a door 2 rotates to open toward the guest room, as shown in Figures 1 and 2.

[0010] In the following explanation, when the installed fitting 1 is viewed from the guest room, the up and down direction is referred to as the up and down direction, the left and right direction is referred to as the left and right direction, and the depth direction is referred to as the prospective direction. Furthermore, even when each part of the fitting 1, or each component that makes up the fitting 1 is in a standalone state, the directions will be specified and explained in terms of the up and down direction, left and right direction, and prospective direction when the fitting 1 is installed.

[0011] As shown in Figure 1, the fitting 1 has a frame body 10 formed by a rectangular frame of an upper frame 11, a lower frame 12, a door-end vertical frame 13, and a hanging-end vertical frame 14, and a door 2 that is rotatably supported by the frame body 10 and can close an opening 10a formed by the frame body 10. The door-end vertical frame 13 and the hanging-end vertical frame 14 are the same extruded shape material, and as shown in Figure 2, they are used with the left and right reversed.

[0012] The door-end side vertical frame 13 and the hanging-end side vertical frame 14 have square tube sections 13b, 14b with rectangular cross sections and hollow sections 13a, 14a that penetrate in the vertical direction, AT material holding sections 13d, 14d that protrude from the bathroom side parts of the frame body side visible surfaces 13c, 14c that face each other in the square tube sections 13b, 14b to opposite sides and hold AT material (airtight material) 15, and protrusions 13e, 14e that protrude from the guest room side parts of the frame body side visible surfaces 13c, 14c to opposite sides. That is, the square tube portion 13b, the frame-side visible surface 13c, the AT material holding portion 13d, and the protrusion 13e are formed on the door-end side vertical frame 13, which is made of a single member, and the square tube portion 14b, the frame-side visible surface 14c, the AT material holding portion 14d, and the protrusion 14e are formed on the hanging-end side vertical frame 14, which is made of a single member. The protrusions 13e and 14e have a flat surface on the passenger compartment side. Note that the protrusions 13e and 14e may be formed from separate members from the door-end side vertical frame 13 or the hanging-end side vertical frame 14, and may be configured to be attached to the door-end side vertical frame 13 or the hanging-end side vertical frame 14.

[0013] A lock receiving member 16 is attached to the frame body side visible surface 13c of the door end side vertical frame 13, approximately midway in the vertical direction, between the AT material holding portion 13d and the protrusion 13e.

[0014] 3, the lock receiving member 16 is substantially rectangular parallelepiped-shaped and has a hole 16a penetrating in the left-right direction in the center. The lock receiving member 16 has a door-side surface 16b that is a flat surface substantially parallel to the frame-side visible surface 13c to which the lock receiving member 16 is attached, and a lock receiving sight surface 16c that is a flat surface facing the passenger compartment. The door-side surface 16b and the lock receiving sight surface 16c are connected by a curved surface 16d.

[0015] Above and below the hole 16a, there are provided insertion holes 16e through which screws 17 are inserted to attach the lock receiving member 16 to the frame-side visible surface 13c. The insertion holes 16e are elongated holes that are long in the visible direction, and are provided in recesses 16f for positioning the heads of the screws 17 closer to the frame-side visible surface 13c than the door-side surface 16b. By attaching the lock receiving member 16 with the screws 17 inserted through the insertion holes 16e, it is possible to adjust the position in the visible direction within the range of the elongated hole defined by the insertion holes 16e.

[0016] When the lock receiving member 16 is attached to the frame-side visible surface 13c, the lock receiving visible surface 16c is located close to the protruding portion 13e protruding from the frame-side visible surface 13c, on the bathroom side of the protruding portion 13e. The protruding amount of the lock receiving member 16 attached to the frame-side visible surface 13c from the frame-side visible surface 13c to the door-side surface 16b is greater than the protruding amount of the protruding portion 13e from the frame-side visible surface 13c, and the curved portion 16d is located closer to the door 2 than the protruding portion 13e.

[0017] The door 2 has a frame body 20 in which an upper frame 21, a lower frame 22, a door tip frame 23, and a hanging base frame 24 are assembled in a rectangular shape, and a surface material 25 whose outer periphery is housed and attached to the frame body 20. The door 2 is supported on the hanging base side by pivot hinges (not shown) on the upper frame 11 and the lower frame 12 so that it can rotate freely, and the door tip side rotates to move toward the passenger compartment (the other side in the forward direction) when opened.

[0018] The door end frame 23 has a hollow portion 23a that penetrates in the vertical direction and has a substantially rectangular cross section. When the door is closed, the door end frame 23 has a door end side visible surface 23b that faces the frame body side visible surface 13c of the door end side vertical frame 13, and is provided with a latch bolt 26 that is biased and protrudes from the door end side visible surface 23b toward the door end side vertical frame 13 and can be retracted inside the door end frame 23. Handles 27 are provided on the guest room side and bathroom side of the door end frame 23, and by operating the handles 27, the latch bolt 26 can be retracted and the door 2 can be opened.

[0019] Latch bolt 26 has, on the passenger compartment side, passenger compartment-side flat surface 26a which is a flat surface along the in-plane direction of door 2, and, in a state where it protrudes from frame-side visible surface 13c, has curved surface 26b which is curved so that the thickness in the visible direction becomes thinner toward the tip protruding from frame-side visible surface 13c. Latch bolt 26 is provided in a position which, when door 2 is closed, opposes in the left-right direction to hole 16a of lock receiving member 16 attached to frame-side visible surface 13c.

[0020] When the door 2 of the fixture 1 is open, the latch bolt 26 protrudes from the door-edge-side visible surface 23b as shown in Fig. 5(a). When the door 2 is rotated so that the door edge of the door 2 moves toward the bathroom (one side in the visible direction), the curved surface 26b of the latch bolt 26 comes into contact with the curved surface portion 16d of the lock receiving member 16 as shown in Fig. 5(b).

[0021] Then, as door 2 continues to rotate toward the bathroom, as shown in Figure 5(c), curved surface 26b slides along curved portion 16d, pressing latch bolt 26 against curved portion 16d and moving it in the retracted direction. At this time, latch bolt 26 does not contact protruding portion 13e. Curved portion 16d corresponds to the contact portion with which the latch bolt comes into contact and moves the latch bolt in the retracted direction.

[0022] When the door 2 is further rotated toward the bathroom side, the tip of the latch bolt 26 passes over the curved surface 16d and reaches the door side surface 16b, and slides on the door side surface 16b while being pressed against the door side surface 16b.

[0023] Thereafter, when the latch bolt 26 faces the hole 16a of the lock receiving member 16, the latch bolt 26 protrudes and is inserted into the hole 16a, as shown in Figure 5(d), thereby maintaining the door 2 in a closed state.

[0024] The hanging base side vertical frame 14 is the same shape as the door end side vertical frame 13, and is used with the left and right sides reversed, so as shown in Figure 2, the protruding part 14e protruding from the frame body side visible surface 14c is located on the passenger compartment side of the space between the hanging base frame 24 and the frame body side visible surface 14c.

[0025] According to the fitting 1 of this embodiment, the frame 10 is provided with a protrusion 13e on the guest room side of the lock receiving member 16, which has a curved portion 16d that comes into contact with the latch bolt 26 when the end of the open door 2 moves toward the bathroom and closes. The protrusion 13e protrudes from the frame-side visible surface 13c to which the lock receiving member 16 is attached. This means that the lock receiving member 16 is hidden by the protrusion 13e when viewed from the guest room side. As a result, the amount of exposure of the lock receiving member 16 is small when viewed from the guest room side, making the lock receiving member 16 less noticeable. This results in a more aesthetically pleasing fitting than a fitting that does not have the protrusion 13e.

[0026] In addition, the protrusion 13e is formed on the door-end vertical frame 13, which is made of a single member together with the frame-side visible surface 13c, and the protrusion 13e and the frame-side visible surface 13c are connected without interruption, so the protrusion 13e is less noticeable. This results in a more aesthetically pleasing design.

[0027] Furthermore, since the protrusion 13e faces the lock receiving member 16 in the front direction, the lock receiving member 16 can be more reliably hidden by the protrusion 13e.

[0028] Furthermore, since the protrusion 13e does not come into contact with the latch bolt 26 when the door 2 is closed, the protrusion 13e exposed to the passenger compartment is not damaged by the latch bolt 26. Therefore, the aesthetic appearance of the protrusion 13e is not impaired, making it possible to maintain excellent design.

[0029] In addition, the surface of the protrusion 13e facing the passenger compartment is flat, giving it a clean appearance when viewed from the passenger compartment, making it less noticeable, and because it is continuous in the vertical direction, it is easier to see it as one with the door-end vertical frame 13. This further enhances the design.

[0030] In addition, because the door-end vertical frame 13 and the hanging-end vertical frame 14 are made of the same material, it is possible to reduce the cost of the fitting 1. Furthermore, because the protruding portion 14e of the hanging-end vertical frame 14 is located on the passenger compartment side of the gap between the frame body-side visible surface 14c of the hanging-end vertical frame 14 and the door 2, the gap between the hanging-end vertical frame 14 and the door 2 is also perceived as smaller and narrower. This makes it possible to provide a fitting 1 with better design.

[0031] The above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof. The present embodiment includes at least the following inventions.

[0032] Aspect 1: A fixture having a frame that forms an opening, and a door that is rotatably supported on the frame and can close the opening, wherein the door has a latch bolt that protrudes from and retracts into the door-edge side visible surface, the frame has a door-edge side vertical frame that is provided on the door-edge side of the door, and the door-edge side vertical frame has a frame-side visible surface that faces the door-edge side visible surface of the closed door, and a protrusion that protrudes from the frame-side visible surface, and the frame-side visible surface has a lock receiving member attached to one side in the visible direction of the protrusion, the lock receiving member having a contact portion that the latch bolt comes into contact with and moves the latch bolt in the retracting direction when the door edge of the open door moves to one side in the visible direction to close, and a hole portion into which the latch bolt protrudes and is inserted after passing through the contact portion.

[0033] According to the fitting of Aspect 1, the frame has a protrusion that protrudes from the frame-side surface to which the lock receiving member is attached on the other side in the projection direction of the lock receiving member, which has a contact portion that comes into contact with the latch bolt when the edge of the open door moves to one side in the projection direction to close. Therefore, when viewed from the other side to which the door edge moves when the door opens, the protrusion hides the lock receiving member. Therefore, when viewed from the other side, the amount of exposure of the lock receiving member is small, so the lock receiving member is less noticeable. This results in a more aesthetically pleasing fitting than fittings that do not have a protrusion.

[0034] Furthermore, since the protruding portion and the visible surface of the frame body are connected without interruption, the protruding portion is less noticeable, resulting in an excellent design.

[0035] Aspect 2: The fixture according to Aspect 1, characterized in that the protrusion faces a part of the lock receiving member in the front direction.

[0036] According to the fixture of aspect 2, the protrusion faces a part of the lock receiving member in the front direction, so that the protrusion can reliably hide at least a part of the lock receiving member.

[0037] Aspect 3: The fitting according to Aspect 1 or Aspect 2, characterized in that the protrusion does not come into contact with the latch bolt when the door is closed.

[0038] According to the fitting of aspect 3, the protrusion does not come into contact with the latch bolt when the door is closed, so the protrusion exposed on the other side, i.e., the side on which the door is opened, is not damaged by the latch bolt. Therefore, the aesthetic appearance of the protrusion is not marred, and it is possible to maintain excellent design.

[0039] Aspect 4: A fitting according to any one of Aspects 1 to 3, characterized in that the surface on the other side in the projection direction is flat and continuous in the vertical direction.

[0040] According to the fitting of aspect 4, the surface of the protruding part on the other side in the front direction is flat, so it has a neat appearance when viewed from the other side and is less noticeable, and because it is continuous in the vertical direction, it is easier to see it as one with the vertical frame on the door end side. This makes it even more aesthetically pleasing.

[0041] Aspect 5: A fixture described in any of Aspects 1 to 4, characterized in that the protrusion is formed on the door-end vertical frame, which is a single member together with the frame body side visible surface.

[0042] According to the fitting of aspect 5, the protrusion is formed on the door-end vertical frame, which is made of a single member together with the frame-side visible surface, so the boundary between the protrusion and the frame-side visible surface is less visible, which further improves the design.

[0043] Aspect 6: The fitting according to any one of Aspects 1 to 5, wherein the frame body is provided on the hanging side of the door and has a hanging side vertical frame made of the same material as the door end side vertical frame, The protrusion of the hanging side vertical frame is characterized in that it is located on the other side in the projection direction of the gap between the frame body side projection surface of the hanging side vertical frame and the door.

[0044] According to the fixture of aspect 6, the door-end vertical frame and the hanging-end vertical frame are made of the same material, which makes it possible to reduce the cost of the fixture. Also, since the protruding portion of the hanging-end vertical frame is located on the other side of the gap between the door and the frame-side visible surface of the hanging-end vertical frame, the gap between the hanging-end vertical frame and the door appears smaller and narrower. This makes it possible to provide fixtures with superior design. [Explanation of symbols]

[0045] 1 Door, 2 Door, 10 Frame, 10a Opening, 13 Door end vertical frame, 13c frame body side projection surface, 13e protrusion, 14 hanging base side vertical frame, 14e protrusion, 16 lock receiving member, 16a hole, 16d curved surface (contact portion), 23b Door end side, 26 Latch bolt,

Claims

1. a frame body that forms an opening; A door that is rotatably supported on the frame body and can close the opening, The door has a latch bolt that protrudes from the front door surface and can be retracted, The frame body has a door-end side vertical frame provided on the door-end side, The door end vertical frame is The door has a frame-side projection surface that faces the door-end-side projection surface of the closed door, and a protrusion that protrudes from the frame-side projection surface, This building fixture is characterized in that a lock receiving member is attached to one side of the frame body's visible surface in the visible direction, the lock receiving member having a contact portion that the latch bolt comes into contact with and moves the latch bolt in the retracting direction when the door edge of the open door moves to one side in the visible direction to close, and a hole portion into which the latch bolt protrudes and is inserted after passing through the contact portion.

2. The fitting according to claim 1, A fixture characterized in that the protrusion faces a part of the lock receiving member in the forward direction.

3. The fitting according to claim 1 or claim 2, The door is closed, and the protrusion does not come into contact with the latch bolt.

4. The fitting according to claim 1 or claim 2, A fixture characterized in that the protrusion has a flat surface on the other side in the projection direction and is continuous in the vertical direction.

5. The fitting according to claim 1 or claim 2, A fixture characterized in that the protrusion is formed on the door-end vertical frame, which is a single member together with the frame body side visible surface.

6. The fitting according to claim 1 or claim 2, The frame body is provided on the hanging side of the door and has a hanging side vertical frame made of the same material as the door end side vertical frame, A fixture characterized in that the protrusion of the hanging side vertical frame is located on the other side in the projection direction of the gap between the frame body side projection surface of the hanging side vertical frame and the door.

Citation Information

Patent Citations

  • JP324402A