Sliding door with anti-bouncing unit and soft-close function

Abstract

To provide a bouncing suppression unit which can be post-mounted between a guide body and a soft close unit on a door tip side and / or a door tail side of a sliding door, and to provide a sliding door with a soft closing function.SOLUTION: A bouncing suppression unit includes: a body portion having at one end in a horizontal direction thereof a connection recess connectable to a guide body and at the other end a connection projection connectable to a soft close unit; an absorber disposed at a lower portion of the body portion for absorbing an impact; and an adapter holding the absorber and having a lower end contactable with an upper end of the sliding door and an upper end vertically slidably connected to the body portion, the absorber being configured to act in the vertical direction via the adapter.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0001] The present invention relates to a bounce suppression unit for a sliding door that can be opened and closed along a rail fixed to the upper frame of an opening of a structure, and a sliding door with a soft close function.

Background Art

[0002] Some sliding doors that open and close along a rail provided on the upper frame of a building entrance have a soft close mechanism for alleviating the impact and noise caused by the collision of the sliding door body against the door frame or door stop. In such a soft close mechanism for a sliding door, a soft close mechanism portion having a trigger cam is provided at the upper end of the sliding door body, and a trigger member is provided at a predetermined position on the rail side. When opening and closing, the soft close mechanism operates when the sliding door abuts against the trigger member, so that the moving speed of the sliding door is reduced and it stops after traveling a predetermined distance.

[0003] When closing a sliding door equipped with such a soft close function, if excessive force is applied, the door with momentum bounces upward, causing a problem of impairing the sophistication of the operation.

[0004] In order to suppress the upward bounce of such a sliding door, a guide body that guides the sliding door along a rail provided in the structure, a receiving member that applies a braking force to the guide body at an intermediate position during the opening and closing of the sliding door, a pressing block provided on the guide body, and a block advancement mechanism that advances the pressing block from the guide body along with the braking of the guide body and presses the sliding door are provided, and a bounce suppression device mounted near the trolley has been proposed (Patent Document 1).

[0005] However, the upward-swinging suppression device disclosed in Patent Document 1 is a mechanism that operates only in the direction in which the attached suspension wheel moves. When applied to a unit in which the soft-close mechanism operates in both opening and closing directions, it does not operate in the opening direction, causing the sliding door to swing upward. To solve this problem, an upward-swinging suppression device for sliding doors has been proposed in which an absorber is positioned to act vertically on the suspension wheel moving in the opening direction to suppress upward-swinging (Patent Documents 2, 3, and 4). [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Patent No. 5650450 [Patent Document 2] Patent No. 6587885 [Patent Document 3] Patent No. 6815004 [Patent Document 4] Japanese Patent Publication No. 2022-88902 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, as mentioned above, when the upward-swinging suppression device described in Patent Document 1 is applied to a unit in which the soft-close mechanism operates in both opening and closing directions, it does not operate in the opening direction, resulting in the sliding door swinging upwards.

[0008] Furthermore, the sliding door bounce-up suppression devices described in Patent Documents 2, 3, and 4 had problems such as requiring a change in the shape of the suspension wheel itself to accommodate the absorber, which resulted in significant manufacturing costs and the need to change the shape of the processed part of the sliding door to which the suspension wheel is attached.

[0009] Therefore, the present invention solves the above-mentioned problems of the prior art, and its objective is to provide a sliding door with a soft-close function and a lift-up suppression unit that can be retrofitted between the guide body on the leading and / or trailing end of the sliding door and the soft-close unit.

[0010] Another object of the present invention is to provide a sliding door with a soft-close function and a bounce-up suppression unit that can be connected in multiple units to improve bounce-up suppression force. [Means for solving the problem]

[0011] According to the present invention, a sliding door with a soft-close function that can be opened and closed along a rail fixed to the upper frame of an opening in a structure has a main body having a connecting recess at one end in the horizontal direction that can be connected to the guide body of the sliding door and a connecting protrusion at the other end that can be connected to a soft-close unit; an absorber disposed at the lower part of the main body for absorbing impact; and an adapter that holds the absorber, has its lower end abutting against the upper end of the sliding door, and its upper end is slidably connected to the main body in the vertical direction. The absorber is configured to act vertically via the adapter.

[0012] In the bounce-up suppression unit of the present invention, the main body has a connecting recess at one end in the horizontal direction that can be connected to the guide body, and a connecting protrusion at the other end that can be connected to the soft-close unit, an absorber for absorbing impact is arranged at the lower part of the main body, and an adapter is provided that holds the absorber, has its lower end abutting against the upper end of the sliding door, and has its upper end slidably connected to the main body in the vertical direction. The absorber is configured to act in the vertical direction via the adapter. This allows it to be retrofitted at the construction site between the guide body and the soft-close unit of a sliding door that does not have a bounce-up suppression function. Furthermore, in a sliding door using a unit that operates soft-close in both opening and closing directions, it can be installed on both the leading and trailing ends of the door, and bounce-up suppression can be achieved in the opening direction as well. Moreover, a sliding door with a soft-close function that suppresses bounce-up can be constructed without incurring significant manufacturing costs or changing the processing of the sliding door for attaching the guide body.

[0013] The lower surface of the adapter that contacts the upper end of the sliding door is preferably formed in a curved shape. This allows the adapter to be attached without catching on the upper corner of the sliding door when the guide body inserted into the rail is fitted longitudinally into the receiver provided on the sliding door. Furthermore, by sliding it longitudinally, the absorber can be retracted to the appropriate position according to the gap between the upper rail and the top of the sliding door. In addition, when removing the guide body from the receiver, the adapter can be attached smoothly without catching on any protruding parts on the upper surface of the sliding door.

[0014] Preferably, the absorber comprises a cylinder, a piston having a through hole in the thickness direction and freely movable within the cylinder, a piston rod with one end fixed to the upper surface of the piston and the other end protruding from the upper end of the cylinder, a return spring that biases the piston upward, and a fluid filled inside the cylinder. This allows for the absorption of shocks applied via the piston rod and also allows the piston rod to be pushed back.

[0015] It is also preferable that a removable and adjustable spacer be interposed between the adapter and the absorber. This allows the absorber's resistance to be utilized throughout the entire range of vertical adjustment of the guide body.

[0016] It is more preferable that the connecting protrusions and connecting recesses on the main body are formed in a shape that allows them to fit together. This allows multiple bounce suppression units to be connected to each other, and the bounce suppression force can be increased simply by increasing the number of bounce suppression units used.

[0017] According to the present invention, a sliding door with a soft-close function is further provided, which includes the above-described upward-sliding suppression unit. [Effects of the Invention]

[0018] According to the present invention, the bounce-up suppression unit comprises a main body having a connecting recess at one end horizontally that can be connected to a guide body, and a connecting protrusion at the other end that can be connected to a soft-close unit, an absorber for absorbing impact disposed at the lower part of the main body, and an adapter that holds the absorber, has its lower end abutting against the upper end of the sliding door, and its upper end is slidably connected to the main body in the vertical direction. The absorber is configured to act vertically via the adapter. This allows it to be retrofitted at the construction site between the guide body and soft-close unit of a sliding door that does not have a bounce-up suppression function. Furthermore, in a sliding door using a unit that operates soft-close in both opening and closing directions, it can be installed on both the leading and trailing ends of the door, and bounce-up suppression can also be achieved in the opening direction. Moreover, a sliding door with a soft-close function that suppresses bounce-up can be constructed without incurring significant manufacturing costs or changing the processing of the sliding door for attaching the guide body.

[0019] In addition, since the connection convex part and the connection concave part of the main body part are formed in shapes that can be fitted to each other, a plurality of bounce suppression units can be connected to each other, and the bounce suppression force can be increased simply by increasing the number of bounce suppression units used.

Brief Description of the Drawings

[0020] [Figure 1] It is a perspective view schematically showing the configuration of the bounce suppression unit of the sliding door with a soft close function according to an embodiment of the present invention. [Figure 2] It is an exploded perspective view schematically showing the configuration of the bounce suppression unit of FIG. 1. [Figure 3] It is a perspective view schematically showing the assembled state of the absorber and the adapter of FIG. 1. [Figure 4] It is a cross-sectional view and a view in the A direction schematically showing the configuration of the bounce suppression unit of FIG. 1. [Figure 5] It is a cross-sectional view showing the operating state of the absorber of the bounce suppression unit of FIG. 1, (A) the initial state, and (B) the operating state. [Figure 6] It is a perspective view showing the installation and use state (Part 1) of the bounce suppression unit of FIG. 1. [Figure 7] It is a view showing the installation and use state (Part 2) of the bounce suppression unit of FIG. 1. [Figure 8] It is a perspective view showing the installation and use state (Part 3) of the bounce suppression unit of FIG. 1.

Modes for Carrying Out the Invention

[0021] Hereinafter, embodiments of the bounce suppression unit of the sliding door with a soft close function according to the present invention will be described with reference to the drawings.

[0022] Figure 1 shows the overall configuration of the anti-uplift unit 100 for a sliding door with a soft-close function according to one embodiment of the present invention, and Figure 2 shows the entire anti-uplift unit 100 in an exploded view. Figure 3 shows the absorber 20 and adapter 30 assembled. Figure 4 shows the configuration of the anti-uplift unit 100, with (A) being a cross-sectional view and (B) being a view in direction A. Figure 6 also shows an example of the installation and use of the anti-uplift unit.

[0023] As shown in Figure 6, the upward-sliding suppression unit 100 according to this embodiment is positioned between the guide body 110 and the soft-close unit 120 in a top-hung sliding door D with a soft-close function that can be opened and closed along a rail R fixed to the upper frame of an opening in a structure.

[0024] As shown in Figures 1 to 4 and Figure 6, the bounce-up suppression unit 100 comprises a main body 10 having a connecting recess 11 at one end in the horizontal direction that can be connected to a guide body 110, and a connecting protrusion 12 at the other end that can be connected to a soft-close unit 120; an absorber 20 positioned below the main body 10 to absorb impact; an adapter 30 that holds the absorber 20, has its lower end abut and can press against the upper end of the sliding door, and its upper end is slidably connected to the main body 10 in the vertical direction; and a spacer 40 that can be inserted, removed, and added or removed between the adapter 30 and the absorber 20. The absorber 20 is configured to act in the vertical direction via the adapter 30.

[0025] As described above, the main body 10 has a connecting recess 11 at one end in the horizontal direction that can be connected to the guide body 110, and a connecting protrusion 12 at the other end that can be connected to the soft-close unit 120. The central part 13 of the main body 10 has a recess 13a (Figure 4) that is open at the bottom, and a pair of front and rear protrusions 13b (Figures 1 and 4) that project upward from the upper surface of the recess 13a. The upper end of the adapter 30 can be inserted into the recess 13a. The tip (upper end) of the piston rod 23 of the absorber 20 is positioned to abut against the bottom surface of the recess 13a (the absorber 20 may also be installed upside down). The pair of protrusions 13b are designed to abut against the top wall of the upper rail when the sliding door is raised. The lower part of the central part 13 of the main body 10 also has a connecting part 14 (Figure 4) that connects to the upper end of the adapter 30. The connecting portion 14 is constructed by providing notched slits 14a in the partition wall 11a on the connecting recess 11 side of the recess 13a and in the partition wall 12a on the connecting projection 12 side. In addition, connecting holes 11b and 12b that penetrate in the vertical direction are provided in the connecting recess 11 and the connecting projection 12, respectively. Furthermore, the connecting recess 11 and the connecting projection 12 are formed in a shape that allows them to fit together. As a result, multiple sliding door bounce-up suppression units 100 can be connected to each other, and the bounce-up suppression force can be increased simply by increasing the number of bounce-up suppression units 100 used.

[0026] The absorber 20 is designed to absorb shocks and consists of a cylinder 21, a piston 22 having a through hole 22a and freely movable within the cylinder 21, a piston rod 23 with one end fixed to the upper surface of the piston 22 and the other end protruding from the upper end of the cylinder 21, a return spring 24 that biases the piston 22 upward, and a fluid 25 filled inside the cylinder 21. The outer surface of the cylinder 21 is cylindrical. This configuration allows the absorber to absorb shocks applied via the piston rod 23 and to push the piston rod 23 back. The fluid 25 is a viscous fluid (for example, silicone oil). The piston 22 also has a valve mechanism (not shown in the diagram) that opens and closes the flow path of the through hole 22a. When the piston rod 23 is pulled upward, the valve opens, allowing the fluid 25 to flow from the through hole 22a, and the resistance is almost eliminated. On the other hand, when the piston rod 23 is pushed downward, the valve closes and the through hole 22a is blocked, so the fluid 25 has to pass through the small gap on the outer circumference of the piston 22, which increases resistance and allows the shock to be absorbed.

[0027] Figure 5 shows the operating state of the absorber 20 of the bounce-up suppression unit 100. Figure 5(A) shows the initial state, and Figure 5(B) shows the state when the absorber 20 is activated due to the bounce-up of the sliding door D. Here, the displacement is shown enlarged to explain the operating state, but the actual displacement is very small. As shown in Figure 5(A), in the initial state, the lower part of the adapter 30 is not receiving force from the sliding door D, so the return spring 24 biases the cylinder 21 downward, causing the piston 22 to be positioned at the top of the cylinder 21. In this case, the lower end of the adapter 30 is installed in a state where it is in contact with or slightly gapped from the upper end of the sliding door D. Also, as shown in Figure 5(B), when the absorber 20 is activated due to the bounce-up of the sliding door D, the lower end of the adapter 30 is pushed upward by the upper end of the sliding door D, and the piston rod 23 is in contact with the bottom surface of the recess 13a in the central part 13 of the main body 10 of the adapter 30, so the piston 22 moves downward relative to the cylinder 21. In this case, the fluid 25 below the piston 22 flows through the through hole 22a to the top of the piston 22, and the suppression force can be controlled by the flow velocity. That is, the flow velocity can be appropriately set depending on the diameter of the piston 22 and the viscosity of the fluid 25.

[0028] The adapter 30 comprises a plate-shaped pressing portion 31 as a lower end that abuts against and presses against the upper end of the sliding door D, and a pair of side walls 32 erected on the upper surface of the pressing portion 31 to hold the absorber 20. The lower surface of the pressing portion 31 is formed in a curved shape. The opposing inner surfaces of the pair of side walls 32 are formed in an arc shape corresponding to the outer surface of the absorber 20. In addition, a connecting projection 33 is provided at the upper end of the outer surface of the pair of side walls 32, which engages with the notched slit 14a of the main body 10. The adapter 30 is connected to the main body 10 via the connecting projection 33. The connecting projection 33 is configured to slide along the notched slit 14a.

[0029] The spacer 40 can be, for example, a ring-shaped washer. In this embodiment, two spacers 40 are used. This allows the absorber 20 to exert its resistance over the entire range of vertical adjustment of the guide body, even if the vertical adjustment range is wide.

[0030] The installation and usage of the bounce-up suppression unit 100 of this embodiment will be described below with reference to Figures 6 to 8.

[0031] Figure 6 shows an example of the installation and use of the bounce-up suppression unit 100. As shown in Figure 6, when the bounce-up suppression unit 100 is installed on the leading edge side of the sliding door D, the bounce-up suppression unit 100 is positioned between the guide body 110 and the soft-close unit 120 and operates in the direction in which the guide body 110 moves. In this case, for example, on the leading edge side, the connecting recess 11 of the main body portion 10 of the bounce-up suppression unit 100 is connected to the guide body 110 on the leading edge side, and the connecting protrusion 12 is connected to the soft-close unit 120. The soft-close unit 120 has either a unidirectional soft-close function or a bidirectional soft-close function.

[0032] Figure 7 shows another example of the installation and use of the anti-bouncing unit 100. As shown in Figure 7, the anti-bouncing unit 100 is positioned on a bidirectional soft-close unit 120A, which has a soft-close function that operates in both opening and closing directions, and the guide body 110 operates in the direction that moves in both opening and closing directions. In this case, the anti-bouncing unit 100 is provided on both the leading edge and trailing edge of the sliding door D. That is, on the leading edge side, the connection recess 11 of the main body 10 of the anti-bouncing unit 100 is connected to the guide body 110 on the leading edge side, and the connection protrusion 12 is connected to one end of the bidirectional soft-close unit 120A. On the trailing edge side, the connection recess 11 of the main body 10 of the anti-bouncing unit 100 is connected to the guide body 110 on the trailing edge side. By providing the anti-bouncing unit 100 on both the leading edge and trailing edge of the sliding door D in this way, the anti-bouncing of the sliding door can be suppressed regardless of the direction in which the sliding door D moves.

[0033] Figure 8 shows yet another example of the installation and use of the bounce suppression unit 100. As shown in Figure 8, multiple (2) bounce suppression units 100 are connected to each other and positioned between the guide body 110 and the soft-close unit 120, operating in the direction in which the guide body 110 moves. In this case, the connection recess 11 of the main body 10 of the first bounce suppression unit 100 is connected to the guide body 110, the connection protrusion 12 is connected to the connection recess 11 of the main body 10 of the second bounce suppression unit 100, and the connection protrusion 12 of the second bounce suppression unit 100 is connected to the soft-close unit 120. In this way, by connecting multiple bounce suppression units to each other, the bounce suppression force can be increased simply by increasing the number of bounce suppression units 100 used.

[0034] As described in detail above, the bounce-up suppression unit 100 of this embodiment comprises a main body 10 having a connecting recess 11 at one end in the horizontal direction that can be connected to a guide body 110 and a connecting protrusion 12 at the other end that can be connected to a soft-close unit 120, an absorber 20 disposed at the lower part of the main body 10 for absorbing impact, an adapter 30 that holds the absorber 20 and whose lower end can abut against the upper end of the sliding door D and whose upper end is slidably connected to the main body in the vertical direction, and a spacer 40 disposed between the adapter 30 and the absorber 20, wherein the absorber 20 is configured to act in the vertical direction via the adapter 30.

[0035] This allows the guide body 110 and soft-close unit 120 of a sliding door with a soft-close function that does not have an upward-swinging suppression mechanism to be retrofitted at the construction site. Furthermore, in a sliding door D that uses a unit in which the soft-close function operates in both opening and closing directions, it can be installed on both the leading and trailing ends of the door, thereby suppressing upward-swinging in the opening direction as well. Moreover, a sliding door with a soft-close function that incorporates an upward-swinging suppression function can be constructed without incurring significant manufacturing costs or changing the processing of the sliding door D for attaching the guide body 110.

[0036] Furthermore, the lower surface of the adapter 30 that abuts the upper end of the sliding door D is formed in a curved shape, so that when the guide body 110 inserted into the rail R is fitted into the receiver provided on the sliding door D from the longitudinal direction, the adapter 30 can be attached without catching on the upper corner of the sliding door D. Also, by sliding it in the longitudinal direction, the absorber 20 can be retracted to the appropriate position according to the gap between the upper rail R and the top of the sliding door D. Moreover, when removing the guide body 110 from the receiver, the adapter 30 can be attached smoothly without catching even if there is a raised area on the upper surface of the sliding door D.

[0037] Furthermore, the absorber 20 is composed of a cylinder 21, a piston 22 having a through hole 22a and freely movable within the cylinder 21, a piston rod 23 with one end fixed to the upper surface of the piston 22 and the other end mounted protruding from the upper end of the cylinder 21, a return spring 24 that biases the piston 22 upward, and a fluid 25 filled inside the cylinder 21. As such, it can absorb the impact applied via the piston rod 23 and push the piston rod 23 back.

[0038] Furthermore, the presence of a spacer 40 between the adapter 30 and the absorber 20 allows the absorber 20 to exert its resistance over the entire range of vertical adjustment of the guide body 110, even if the vertical adjustment range is wide.

[0039] Furthermore, since the connecting protrusion 12 and connecting recess 11 of the main body 10 are formed in a shape that allows them to fit together, multiple bounce-up suppression units 100 can be connected to each other, and the bounce-up suppression force can be increased simply by increasing the number of bounce-up suppression units used.

[0040] In the bounce suppression unit 100 of the embodiment described above, an example was described in which two spacers 40 were placed between the adapter 30 and the absorber 20, but the present invention is not limited to this. One or three spacers 40 may be placed. Furthermore, it is not necessary to place any spacers 40 at all.

[0041] Furthermore, in the bounce suppression unit 100 of the above-described embodiment, an example was described in which the absorber 20 is composed of a piston 22, a piston rod 23, a return spring 24, and a fluid 25, but the present invention is not limited to this. Absorbers with other configurations may also be used.

[0042] The present invention is not limited to the embodiments described above, and its technical scope includes various design modifications that do not depart from the gist of the invention as described in the claims. [Explanation of Symbols]

[0043] 10 Main body 11 Connection recess 11a, 12a bulkhead 11b, 12b connection hole 12 Connecting protrusion 13 Central part 13a Recess 13b Protrusion 14 Connecting part 14a Cut slit 20 Absorbers 21 cylinders 22 pistons 22a Through hole 23 Piston Rod 24. Return spring 25 Fluid 30 adapters 31 Pressing part 32 Side wall 33 Connecting protrusion 40 Spacers 100 bounce suppression unit 110 Guide Body 120 Soft-close unit 120A Bidirectional Soft Close Unit D Sliding door R Rail

Claims

1. A sliding door with a soft-close function that can be opened and closed along a rail fixed to the upper frame of an opening in a structure, and a unit to prevent the door from bouncing up. A main body having a connecting recess at one end in the horizontal direction that can be connected to the guide body of the sliding door, and a connecting protrusion at the other end that can be connected to a soft-close unit, An absorber is positioned at the lower part of the main body to absorb shock, The system includes an adapter that holds the absorber, has its lower end abutting against the upper end of the sliding door, and has its upper end slidably connected to the main body in the vertical direction, The bounce suppression unit is characterized in that the absorber is configured to act vertically via the adapter.

2. The upward-sliding suppression unit according to claim 1, characterized in that the lower surface of the adapter that abuts against the upper end of the sliding door is formed in a curved shape.

3. The bounce suppression unit according to claim 1, characterized in that the absorber comprises a cylinder, a piston having a through hole in the thickness direction and freely movable within the cylinder, a piston rod with one end fixed to the upper surface of the piston and the other end mounted protruding from the upper end of the cylinder, a return spring that biases the piston upward, and a fluid filled within the cylinder.

4. The bounce suppression unit according to claim 3, characterized in that a removable and adjustable spacer can be interposed between the adapter and the absorber.

5. The bounce-up suppression unit according to claim 1, characterized in that the connecting protrusion and the connecting recess of the main body are formed in a shape that allows them to fit together.

6. A sliding door with a soft-close function, characterized by being equipped with a bounce-up suppression unit according to any one of claims 1 to 5.

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