Sliding door with low-noise drive

Abstract

To provide furniture having sliding doors with a low-noise driving device that can open and close two heavy sliding doors quietly, safely and smoothly, and that provide a smooth and easy feeling of operation when opening and closing the doors. [Solution] To enable the sliding door of storage furniture to operate quietly and smoothly when opening and closing, a concave rectangular guide rail is attached to the upper frame of the opening of the storage furniture, and a Y-shaped running rail is attached to the lower frame, with embedded guide runners attached to both ends of the upper frame of the sliding door and running rollers attached to the lower frame, a trigger is fitted into a specific position within the rail of the upper frame, and guide runners consisting of a guide with a protrusion and an oil damper and spring connected to it are attached to both ends, creating a sliding door with a low-noise drive device that adjusts the opening and closing speed of the sliding door when it moves left and right, and controls the vibration of the sliding door.

Description

[Technical Field]

[0001] The upper part of the sliding door of the storage furniture is designed to operate quietly and smoothly when opening and closing. Frame materials Guide runners are installed at both ends of the Frame materials This relates to a sliding door with a low-noise drive device that has running rollers attached to each side. [Background technology]

[0002] Storage furniture that allows for quiet and safe storage of items by opening and closing sliding doors from side to side is typically configured with two sliding doors. These two doors are guided by horizontal guide rails formed at the bottom of the opening at the front of the storage furniture, allowing each door to move relative to the other. In this case, the upper and lower slats of the frame are configured with upper recessed rail grooves and lower recessed rails, and the upper and lower slats of the sliding doors have guide protrusions at the top and rollers at the bottom. Each sliding door has two grooves extending parallel to each other, but the large contact surface creates a loud noise when the sliding doors are closed.

[0003] As a sliding door device that has a good overall design and allows the sliding door to be easily attached and detached with reduced noise even when the sliding door is positioned offset in front of the opening of a building, a device has been proposed that includes a sliding door guide rail attached to the back side of the sliding door, a guide member that is assembled within the sliding door guide rail and is movable in the opening and closing direction along the sliding door guide rail, and a building side base member that is attached to the building side and is positioned so that it is hidden by the sliding door when viewed from the front in all of the sliding door's states: closed, open / closed, and open (see Patent Document 1).

[0004] As a storage device and furniture with a top panel that has a luxurious feel and a large storage space, a storage device has been proposed in which a first upper rail extending across almost the entire width of the top panel of the storage device body is provided, and a front sliding door is suspended and supported in front of the front face via a first support element extending forward from this first upper rail, so that the front face of the top panel is covered by the front sliding door and is configured to be slidable from the front face of one side panel of the storage device body to the front face of the other side panel, and a first deceleration means 5 is provided at the top inside the storage device body to reduce the speed at which the front sliding door slides towards the closed position (see Patent Document 2).

[0005] This furniture has two heavy sliding doors that can be opened and closed quietly, safely, and smoothly, and has a low-noise driving sliding door that has a smooth and easy opening and closing feel. Frame materials Two inverted concave rectangular parallelepipeds guide rail and bottom Frame materials Two Y-shaped recessed lower rails or two integrated Y-shaped recessed lower rails are attached to the upper rail body for the inverted concave rectangular guide, which is covered with a box-shaped cover frame with a damper function, and a runner with a two-way soft closer with dual double rollers inserted at both ends of the rectangular body is inserted to allow sliding, and the sliding door Frame materials The top of each door has a base cup that can easily hang the runner with the soft closer, and the bottom has a base cup that can easily hang the runner with the soft closer. teeth It has been proposed to fit rotatable slide rollers to two locations on each of the Y-shaped recessed lower rails (see Patent Document 3).

[0006] A sliding door storage device with sound-reducing guide rails has an integrated guide rail with two grooves, allowing the two sliding doors to operate uniformly and provide a comfortable feel. The opening of the storage device body is opened and closed by the sliding door, which slides in the width direction of the storage body. A pair of left and right rails that movably support the sliding door form an integrated, internally hollow door frame with two grooves, and is fitted to the front of the sliding door section. An integrated, internally hollow door frame has support plates at three locations (two below the door guide grooves and at the center) in the hollow interior of the door frame to mitigate expansion and contraction due to the weight and sliding of the sliding door, and the central support plate has a C-shaped interference portion (see Patent Document 4).

[0007] Regarding the overlapping state of the sliding door handles of a cupboard or the like and the rear sliding door and the front sliding door, an easy-to-open / close sliding door for storage furniture having sliding doors that make it easy to slide at the opening / closing opening of a storage section of a cupboard when both sliding doors are opened and closed, the sliding doors are designed to open and close the opening / closing opening of the storage section and consist of a rear sliding door 8 located on the opening side of the opening on the storage section side and a front sliding door 9 located on the side opposite the storage section, and in order to provide sound insulation and airtightness and allow for easy opening and closing, each sliding door has a U-shaped or L-shaped handle 5 on both sides of the aluminum vertical frame, and a poly pile of a specific width is attached to the entire inside and edge side of each vertical frame, making it possible to open and close the sliding doors at the opening / closing end side of the front sliding door 9 and at the opening / closing end side of the rear sliding door 8 on the storage section side (see Patent Document 5).

[0008] In storage furniture with sliding doors, when the left and right doors of large, special sliding doors are driven, they are often noisy and difficult to open and close easily. Given modern household conditions, there is a demand for furniture with sliding doors that can open and close easily and smoothly while minimizing the noise they make, but this has not been achieved to date. In particular, there are few furniture with sliding doors that have been fitted with newly integrated roller and rail devices that have running rollers and guide rails to achieve this goal, and that open and close smoothly and with a quiet sound. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Japanese Patent Publication No. 2022-47453 [Patent Document 2] Japanese Patent Application Laid-Open No. 2015-25334 [Patent Document 3] Japanese Patent Application Laid-Open No. 2024-94190 [Patent Document 4] Utility Model Registration No. 3212164 [Patent Document 5] Utility Model Registration No. 3218963 Summary of the Invention [Problem to be solved by the invention]

[0010] For large furniture with sliding doors, smooth, near-silent operation with noise levels of less than 45 dB, as quiet as a library, is desired. By appropriately selecting the materials, shapes, and dimensions of the rollers attached to the upper and lower rails that drive the sliding door and the various guide rails that guide the rollers, it is possible to achieve the desired level of noise during opening and closing. For heavy doors, narrowing the roller contact surface can address the smoothness and noise issues associated with roller contact on the frame rails. While many households desire to address the aforementioned drawbacks and inconveniences, the movement of the door simply due to the rail structure and roller material, as well as the contact between the roller and the groove, can scratch the opposing surfaces of the sliding door and generate noise. This significantly detracts from the appearance of the sliding door surface, and the door's weight still creates noise during opening and closing.

[0011] In furniture with large, heavy sliding doors, opening and closing the doors requires a considerable amount of force for the initial movement and generates noise. This project aims to provide storage furniture with significantly improved materials and structure, allowing for light, smooth, and silent opening and closing. This project provides a drive mechanism consisting of aluminum guide rails with two Y-shaped grooves and resin rollers, thereby reducing contact between the rollers of each sliding door and the rail, thereby reducing noise caused by friction between the rail doors and damaging the doors. This project aims to provide a new and useful sliding door for furniture, equipped with a low-noise drive unit that drives smoothly and without forceful collisions with the side panels of the storage device body, and also reduces contact between the guides of the upper guide runners and the rails, eliminating the risk of noise generation or damage to the rollers or guides, allowing for smooth sliding of the sliding door. [Means for solving the problem]

[0012] The upper frame of the opening of the storage furniture allows the sliding door of the storage furniture to move quietly and smoothly when opening and closing. but Concave rectangular guide rail It has become , lower frame bar but Y-shaped running rail There are The sliding door has guide runners at both ends of the upper frame and rollers at the lower frame. Inside the guide rail The trigger is fitted into a specific position and the fixed protrusion and rotating Type This sliding door is equipped with a low-noise drive device that adjusts the speed of the door when it moves left and right when it opens and closes, and also controls the vibration of the door by attaching guide runners, each consisting of an oil damper and a spring, connected to a guide with a protrusion, to both ends.

[0013] The guide runners attached to both ends of the upper sash of the sliding door are double-row concave rectangular parallelepipeds attached to the upper frame of the opening where the sliding door is fitted in the low-pitched drive furniture. guide rail A Y-shaped rail is fitted into the lower frame and a resin roller is attached to the lower frame of the sliding door. Reduce the contact surface withDrive To do This reduces noise and allows for smooth opening and closing, and the opening and closing speed is adjusted by oil dampers and springs connected to the guides of the guide runners attached to both ends of the upper rail.

[0014] The guide runners attached to the two ends of the upper rail of the sliding door consist of a guide with two protrusions, one fixed and one rotating, and an oil damper and spring connected to it. When the sliding door is driven to open or close, the fixed protrusion of the guide moves to the trigger in the guide rail. protrusion Contact with pillar From that point on, the rotating protrusions under the surface are raised. The oil damper and spring are operated to loosen and slide the sliding door, and the rotary projection of the guide is pulled in when driven in the opposite direction, thereby promoting the gentle opening and closing drive of the sliding door.

[0015] The storage furniture with sliding doors is a book and decorative storage furniture or cupboard with a width of 800 to 2400 mm and a height of 800 to 2200 mm, and in order to prevent noise when the sliding door is opened and closed at the opening, and to attach a guide runner to the upper sash of the sliding door to provide a lower load and smoothly drive the roller attached to the lower sash, resin and aluminum are used for the rail and roller materials to reduce the contact surface between the two, and the resin roller on the lower sash of the sliding door slides on an aluminum running rail with two concave grooves and a convex portion on the lower frame material, and the guide runner has a resin guide with a trigger set at a specific position on the two-concave resin guide rail attached to the upper frame material, allowing it to move smoothly in the opening and closing direction. [Effects of the Invention]

[0016] On the sliding door Leave, Double Y-shaped groove structure attached to the lower frame of the opening in Formed aluminum one-piece Y-shaped running rail body of Depending on the use, the contact surface between the guide rail and the roller attached to the bottom rail of the sliding door but Less become thing inSmooth and quiet operation when opening and closing but More and more Upper frame of opening A resin double concave guide rail In the groove of 、 Resin guide on the guide runner attached to the upper rail of the sliding door but leading do To proceed 、 Noise reduction during gentle opening and closing but Even more so, the sliding door opens and closes quietly. but In addition, the guide rail groove is attached to the upper frame of the opening, and the guide runner has a protrusion at the deep position. but Because it is ahead of the curve, the sliding doors will not come off even in the event of large vibrations, making it an effective earthquake-resistant piece of furniture.

[0017] Sliding door Upper rail The guide runners attached to the sliding door are compact in shape, have a simple operating mechanism, are lightweight, rarely break down, and are easy to install and maintain. This allows the sliding door to move quietly, lightly, and smoothly in furniture with a quiet, gentle movement. Furthermore, the sliding door can be installed easily and appropriately with a simple structure, giving the sliding door a uniform feel when closing and a quiet, gentle movement, and this has resulted in a large, heavy-looking door with a quiet, gentle opening and closing movement. [Brief explanation of the drawings]

[0018] [Figure 1] A: Storage furniture B: Cupboard furniture C: Storage furniture with sliding door open [Figure 2] Structural diagram of a sliding door with a low-noise drive unit. A: Front view B: Back view C: Cross section [Figure 3] A diagram of the resin guide rail parts attached to the upper frame of a sliding door with a low-noise drive. A: Resin guide rail B: Trigger C: Guide rail with trigger [Figure 4]A diagram of the structure of the guide runner attached to the upper rail of a sliding door with a low-noise drive unit. A: Appearance of the guide runner B: Diagram of the internal structure of the guide runner C: State diagram of the guide rail and guide number D: State diagram of the guide with a trigger [Figure 5] A perspective view of the running rollers that drive the sliding door with a low-noise drive unit and the running rails of the lower frame. A: Running roller diagram B: Integrated diagram of the Y-shaped running double rail C: Sliding door running on the Y-shaped running double rail D: Integrated diagram of the Y-shaped running rail [Figure 6] A diagram of the state in which a concave rectangular rail is attached to the guide frame of the upper frame of furniture with a low-noise drive unit, and a Y-shaped integrated recessed rail body is attached to the lower frame. A: Diagram of the state before the concave rectangular rail is fitted to the upper frame and the Y-shaped recessed rail to the lower frame. B: Diagram of the state before a sliding door with a guide runner on the upper frame and a running roller on the lower frame is inserted into the opening of the furniture. [Figure 7] A: A diagram of the state in which the upper and lower rails are fitted into the frame of the opening of furniture with a low-noise drive sliding door. B: A diagram of the state in which the running roller is attached to the lower frame of the sliding door. DETAILED DESCRIPTION OF THE INVENTION

[0019] An embodiment of the present invention will be described below with reference to the drawings. Figures 1 and 2 show furniture with a sliding door equipped with a low-noise drive device and the structure of the sliding door. A: Front structure diagram. B: Back structure diagram. Furthermore, Figures 3 to 5 show the resin upper frame of the sliding door. guide rail , the structure of the guide runner is shown in Figures 6 and 7. Frame materials Insert the upper and lower rails into nothing Indicates the status. [Example]

[0020] As shown in Figures 1A and 1C, the sliding door of the shelf furniture was used as a sliding door of storage furniture so that it could be driven quietly and smoothly when opening and closing. The upper frame of the front opening of the shelf furniture is equipped with a concave rectangular guide rail, and the lower frame is equipped with a Y-shaped running rail. Upper rail The guide runners are fitted at both ends of the Lower rail To reduce the noise generated when the sliding door makes its final closing movement, a trigger is fitted to the lower guide rail of the upper frame material at a specific position, and guide runners consisting of guides with protrusions and oil dampers and springs connected to them are installed on both ends, adjusting the speed of the sliding door as it moves left and right when it opens and closes, and providing a sliding door with a low-noise drive unit that controls the door's vibration.

[0021] The opening into which the low-noise driven safety furniture sliding door is fitted is made of a double-row concave rectangular frame material on the upper frame as shown in Figure 2. guide rail As shown in Figure 4, the Y-shaped running rail is fitted into the lower frame material, and the sliding door is Lower rail The sliding door is designed to open and close smoothly by driving a resin roller attached to the top of the opening. Frame materials Two rows of concave rectangular parallelepipeds attached to guide rail is at the bottom Frame materials Two Y-shaped rails are fitted to the sliding door. Lower rail The wheels of the resin rollers attached to the runner are adjusted and driven to reduce noise on the contact surface, as shown in Figure 2. Upper rail The opening and closing speed was adjusted by an oil damper and spring connected to a guide with protrusions on the guide runner attached to both ends.

[0022] As shown in Figure 4, the sliding door Upper railThe guide runners attached to both ends of the door consist of a guide with fixed and rotating resin protrusions, and an oil damper and spring connected to it. Normally, only the fixed protrusion is exposed, and when the fixed protrusion of the guide comes into contact with the protruding post of the trigger inside the upper guide rail by driving to open or close the sliding door, the lower rotating protrusion rises up, activating the oil damper and spring to loosen the sliding door, and when driven in the opposite direction, the protruding post of the trigger pulls the rotating protrusion downwards, promoting the smooth opening and closing of the sliding door.

[0023] The shelving unit with sliding doors is a shelving unit for tableware and decorative items, 900mm wide and 1800mm long. In order to prevent noise when the sliding door opens and closes, and to make it easier to fit and remove the door by attaching a guide runner to the upper rail of the sliding door as shown in Figure 6 to provide a lower load and smoothly driving the running roller attached to the lower rail, resin and aluminum are used for the rail and roller, and as shown in Figure 5C, the contact surface between the two is reduced, so that the resin roller on the lower rail of the sliding door slides on an aluminum running rail with two grooves and a convex portion on the lower frame material, and a trigger is set at a specific position on the two-groove resin guide rail attached to the upper frame material, allowing it to move smoothly in the opening and closing direction by the guide runner with a resin guide.

[0024] In furniture with sliding doors equipped with a low-noise drive unit, as shown in Figure 7, a guide runner is attached to the upper sash of the sliding door to provide a lower load, and a roller attached to the lower sash is smoothly driven, making it easy to fit and remove the sliding door. The aluminum Y-shaped rail attached to the bottom of the opening and the sliding door rollers are made of resin and aluminum, reducing the contact surface between the two. The resin rollers on the lower sash of the sliding door slide on an aluminum running rail with two concave grooves and a convex portion on the lower frame material, and the two-concave resin guide rail attached to the upper frame material and the guide runner with protrusions allow for smooth and gentle movement in the opening and closing direction. [Example]

[0025] As in Example 1, the cupboard was also used for the sliding door opening of the storage furniture so that the upper sliding door of the cupboard furniture in Figure 1B could be driven quietly and smoothly when sliding open and closed. The upper frame of the cupboard opening is equipped with a concave rectangular guide rail, and the lower frame is equipped with a Y-shaped running rail. Inset guide runners are attached to both ends of the upper frame of the sliding door, and rollers are attached to the lower frame. Guy Drail The sliding door has a trigger fitted at a specific position, and guide runners consisting of an oil damper and spring connected to a guide with a protrusion are attached to both ends to adjust the speed of the sliding door when it moves left and right when opening and closing, and also to control the vibration of the sliding door.The cupboard has two levels, upper and lower, the upper level is a space with a shelf section with sliding doors and a counter, and the lower level is a collection of a storage area with hinged doors, drawers, and space.

[0026] The opening for the sliding door of the low-frequency-driven safe cupboard furniture is a rectangular parallelepiped, 900mm wide and 500mm long, with a double-row concave rectangular frame on the upper frame. guide rail A Y-shaped running rail is fitted into the lower frame sash, and the sliding door can be opened and closed smoothly by driving a resin roller attached to the lower sash. In order to reduce noise caused by adjusting the contact surface of the wheels of the resin roller for the runner attached to the lower sash of the sliding door, guide runners are attached to both ends of the upper sash.

[0027] The guide runners attached to the two ends of the upper rail of the cupboard sliding door consist of a guide with fixed and rotating protrusions, and an oil damper and spring connected to it. Normally, only the fixed protrusions of the guide are exposed, and when the sliding door is opened or closed, the fixed protrusions of the guide are guide railWhen it comes into contact with the protruding pillar of the trigger inside, the rotary protrusion under the surface rises up and activates the connected oil damper and spring, loosening and sliding the sliding door, and when driven in the opposite direction, the rotary protrusion is pushed under the surface by the protruding pillar of the trigger, stopping the operation of the connected oil damper and spring, and promoting the smooth opening and closing operation of the sliding door.

[0028] The storage furniture with the sliding door is a cupboard that is 900mm wide and 2000mm long, and in order to prevent noise when the sliding door is opened and closed at the opening, and to attach a guide runner to the upper sash of the sliding door to provide a lower load, and to smoothly drive the roller attached to the lower sash, making it easy to fit and remove the sliding door, resin and aluminum are used for the rail and roller materials, reducing the contact surface between the two, and the resin roller on the lower sash of the sliding door slides on an aluminum running rail with two grooves and a convex portion on the lower frame material, and the guide runner has a resin guide with a trigger set at a specific position on the two-groove resin guide rail attached to the upper frame material, allowing it to move smoothly in the opening and closing direction.

[0029] The sound volume when the sliding door of the cupboard used above was opened and closed was measured. The measuring device was a RION SOUND LEVEL METER NA-20, and measurements were taken 20 cm away from the sliding door. Measurements were taken three times about 20 cm below the upper grooved rail that opens and closes, and the average value is shown. The sound volume of the product of this application was 35 dB. Noise intensity is merely a measure of sound intensity. Relative comparisons are clear. [Table 1] It was particularly noticeable that the closing process was quiet.

[0030] In a cupboard furniture similar to Example 2, when a conventional sliding door with double rollers was attached to the top, the noise level during opening and closing was in the range of 55 to 65 dB. However, when a Y-shaped rail was attached to the bottom of the sliding door and rollers were attached to the top as in Example 2, the noise level during closing was 60 dB, which was not a big difference. However, when a guide runner was used, the noise level was reduced to an extreme 35 dB, and an effect was observed. The top of the large door of this furniture Frame materials Two inverted concave rectangular parallelepipeds guide rail and bottom Frame materials Two Y-shaped recessed lower rails are attached to the inverted concave rectangular parallelepiped. guide rail By inserting a guide runner without rollers, the noise of the sliding door when it opens and closes is reduced, the installation work of the sliding door is simple, and maintenance by removing it is also easy, which has an effect beyond just reducing noise. of It has become possible to obtain it. [Explanation of symbols]

[0031] 1...Sliding door with low-noise drive 2...Upper frame of sliding door 3...Concave rectangular guide rail 4...Bottom frame of sliding door 5...Y-shaped running rail 6...Guide Runner 7...Oil damper 8...Spring 9...Upper frame of opening 10...Lower frame of opening 11...Travel roller 12...Guide with protrusion 13…Fixed protrusion 14...Rotating protrusion 15...Trigger protruding post 16...Trigger 17...Y-shaped groove guide rail 18...Cupboard 19...Storage shelf 20…Shelf 21...Tabletop 22...Side panel 23...Uneven groove part

Claims

1. A sliding door with a low-noise drive device is characterized in that the upper frame member of the opening of the storage furniture is a concave rectangular guide rail, and the lower frame member is a Y-shaped running rail, so that the sliding door can be driven quietly and smoothly when opening and closing. The upper frame member has recessed guide runners attached to both ends of the upper frame member and rollers attached to the lower frame member. A trigger is fitted into a specific position within the guide rail of the upper frame member, and guide runners consisting of an oil damper and a spring connected to a guide with fixed and rotating protrusions are attached to both ends. When the sliding door moves left and right to open or close, the fixed protrusion of the guide runner comes into contact with the protruding post of the trigger, causing the rotating protrusion below the surface to rise, activating the connected oil damper and spring to loosen and slide the sliding door. When the sliding door is driven in the opposite direction, the rotating protrusion is pushed below the surface by the protruding post of the trigger, stopping the operation of the connected oil damper and spring, thereby adjusting the opening and closing speed of the sliding door. This reduces the contact surface between the roller of the sliding door and the running rail, thereby reducing noise.

2. The sliding door with a low-noise drive device according to claim 1, characterized in that the guide runners attached to both ends of the upper sash of the sliding door consist of a guide with fixed and rotating resin protrusions, and an oil damper and spring connected to it, and normally only the fixed protrusion is exposed at the top, and when the sliding door is driven to open or close, the fixed protrusion of the guide comes into contact with the protruding post of the trigger inside the upper guide rail, causing the rotating protrusion below the surface to rise, thereby activating the oil damper and spring and slowing down the opening and closing speed of the sliding door.

3. 3. A sliding door with a low-noise drive device according to claim 1 or 2, characterized in that in the low-noise drive furniture, a double-row concave rectangular guide rail is fitted into the upper frame member of the opening into which the sliding door is fitted, and a Y-shaped running rail is fitted into the lower frame member, and by driving the door with a reduced contact area between the running rail and a resin roller attached to the lower frame member of the sliding door, noise is reduced and the door can be opened and closed smoothly, and a guide runner is attached to the upper frame member of the sliding door to put it in an underload state, making it easy to fit and remove the sliding door.

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