JP2020012366A - One-way breaking device, two-way breaking device, one-way breaking unit, two-way breaking unit, sliding door with one-way breaking unit, and sliding door with two-way breaking unit - Google Patents

Abstract

To prevent fingers from being pinched when a sliding door slides and the generation of impact noise, and increase the braking distance to ensure that the door frame can be hidden even if the sliding distance of the sliding door is the same.SOLUTION: A braking device includes a base, a starting lock tool, a movable stopper, a forward lock tool, a connector, a spring, and a damper. The starting lock tool, the forward lock tool, and the movable stopper are slidably mounted on the base. The starting lock tool and the movable stopper are connected by a connector mounted on the base. The distal end side of the spring in the expansion and contraction direction and the distal end side of the rod of the damper are connected to the forward lock tool attached to the base. The braking device can be accommodated in the case. When the case is attached to a lower part of the sliding door and the sliding door is closed or opened, the braking device brakes the sliding door. The starting lock tool, the connector, the movable stopper, the forward lock tool, the spring, and the damper are arranged in two vertical stages to increase the braking distance.SELECTED DRAWING: Figure 1

Description

  According to the present invention, when the sliding door is slid laterally to close or open an opening (entrance) such as a wall or a partition, the sliding door is braked before the door is fully closed or fully opened, and the sliding door is decelerated and soft-slids. The present invention relates to a braking device for a sliding door, a braking unit incorporating the braking device and wheels in a case, and a sliding door with a braking unit to which the braking unit is attached.

  DESCRIPTION OF RELATED ART Conventionally, there exists a thing like patent document 1 and 2 as a braking device of a sliding door. When these doors are closed with sliding doors, the sliding doors are braked before the doors are fully closed in order to prevent pinching of fingers and to prevent the generation of impact noise when sliding doors are closed. Close).

  Sliding doors include an inset sliding door in which a door frame is provided on the inner peripheral edge of the entrance and the sliding door is arranged in the door frame, and an outset sliding door in which the sliding door is arranged on the near side (outside) of the door frame. The braking device is used in any sliding door. Regardless of whether the sliding door is an inset sliding door or an outset sliding door, the braking device works effectively, and when the sliding door is fully closed or fully opened, a sliding range of about 50 mm is usually required to softly slide the sliding door. It has been. For this reason, in the case of an inset sliding door, deceleration is started about 50 mm before the position where the entrance is completely closed. However, in the case of an outset sliding door, the door frame is also hidden and completely closed. Since the width of the door frame is usually about 30 mm, if the deceleration is started from about 50 mm before the position where the door frame is hidden (fully closed position), even if the sliding door approaches the door frame, In the fully closed position, braking does not work effectively and the speed remains high. For this reason, when the sliding door approaches the door frame, a finger may be pinched between the sliding door and the door frame. Therefore, in the case of an outset sliding door, the sliding door is slowed down from about 80 mm before the fully closed position where the door frame is hidden, and when the sliding door approaches the door frame, the sliding door slides softly. . However, in this case, the sliding door stops before the door frame is completely hidden, and cannot be completely closed. In order to prevent this, even if the sliding door is decelerated about 80 mm before the fully closed position, a braking device that slides the sliding door until the door frame is completely hidden is required. For that purpose, a braking device having a long braking distance is required, and there is a problem that the braking device becomes large.

JP-A-2005-08369 JP-A-2015-067976

  The problem to be solved by the present invention is to equip both the inset sliding door and the outset sliding door, when sliding in the closing direction of the sliding door (at the time of closing sliding) or / and when sliding in the direction of opening the sliding door (opening sliding). At that time, the sliding door is slid softly to prevent the finger from being pinched and to suppress the generation of an impact sound. Another object of the present invention is to increase the braking distance (section) even if the sliding distance of the sliding door is the same so that the sliding door can securely hide the door frame when the outset sliding door is fully closed.

[Brake device]
The braking device of the present invention is used by being built in a lower part of a sliding door. There are a two-way braking device that can brake both when the sliding door is closed and when it is opened, and a one-way braking device that can brake only when the sliding door is slid or when it is opened.

[One-way braking device]
The one-way braking device of the present invention is provided with a set of braking devices in a single case that is housed and fixed inside the floor side of the sliding door, and when sliding one of the closing slide and the opening slide of the sliding door, The sliding speed of the sliding door is reduced either before the sliding door is fully closed or just before the sliding door is fully opened, and the sliding door is braked so as to softly slide (soft closing when closing sliding, and soft opening when sliding open). .

  The one-way braking device of the present invention includes a base, a starting lock, a movable stopper, a forward lock, a coupling, a spring, and a damper. The base is elongated in the sliding direction of the sliding door. A starting stopper, a forward stopper, and a movable stopper are slidably attached to the base. The starting stopper and the movable stopper are connected by a connector attached to the base, and the distal end of the spring in the expansion and contraction direction and the distal end of the rod of the damper are connected to the leading stopper attached to the base. This braking device can be housed in a case, and when the case is attached to the lower part of the sliding door and the sliding door is closed or opened, the case and the starting lock move in the same direction as the sliding door, and the starting locking is performed. In the middle of the movement, the tool stops on the floor stopper fixed to the floor under the sliding door. When the sliding door continues to slide even after the stop, the movable stopper is operated by the connecting tool, and the front locking tool is pulled by the spring in the direction opposite to the moving direction of the case with the operation, and is connected to the front locking tool. The base and the case are braked by the rod of the damper being pulled into the cylinder of the damper, and by this braking, the sliding door to which the case is attached is braked so that the sliding door slides slowly. When the sliding door returns and slides in the opposite direction, the braking device operates in a reverse step to the operation at the time of the braking to return to the original state.

  The braking device that operates when the sliding door closes and slides returns to the state before braking when the sliding door opens and slides, and the braking device that operates when the sliding door opens and slides returns to the state before braking when the sliding door closes and slides.

[Bidirectional braking device]
The two-way braking device of the present invention includes two sets of braking devices in one case, and is incorporated so that the braking directions of the two braking devices are reversed. One of the two sets of braking devices has a sliding door closed. The sliding door is braked and soft-closed during sliding, and the other is braked and soft-opened when the sliding door is opened and slid.

[Two-stage configuration]
In both the one-way braking device and the two-way braking device of the present invention, the starting locking device, the movable stopper, the forward locking device, the connecting device, the spring, and the damper can be provided on the base in two stages.

[One-way braking unit]
The one-way braking unit of the present invention includes the braking device of the one-way braking device, two wheels housed in one case, and two wheels provided on a front end side and a rear end side of the case. ,

[Bidirectional braking unit]
The two-way braking unit of the present invention includes two braking devices of the two-way braking device and two wheels housed in one case, and the two wheels are provided on a front end side and a rear end side of the case. It is. When the sliding door is to be used, it is attached to the side of the sliding door, and when the sliding door is closed and closed, the braking device operates in the same manner as when the sliding door is opened as described above. Sliding, if it is for open sliding, it is attached to the door side of the sliding door, and when the sliding door is slid open, the braking device operates in the same way as at the time of the closing slide described above, and braking is started just before the sliding door is fully opened. It is designed to slide slowly.

[Sliding door with braking unit]
The sliding door with a braking unit of the present invention is a sliding door with a one-way braking unit provided with the one-way braking unit on the sliding door, or a sliding door with a two-way braking unit provided with a two-way braking unit. In the case of a sliding door with a one-way braking unit, braking is performed when the sliding door is closed or slid, and in the case of a sliding door with a bidirectional braking unit, when the sliding door is closed, the braking is performed just before the sliding door is fully closed. Braking can be performed just before fully opening.

The one-way braking device of the present invention has the following effects.
(1) The sliding door can be reliably braked during either sliding of the sliding door or the sliding of the sliding door, and pinching of a finger and generation of an impact sound can be suppressed.
(2) In the case of a two-stage upper and lower configuration, the braking distance (section) becomes long even if the stroke distance of the sliding door is left as it is, and in the case of an outset sliding door, the sliding door is securely closed until the door frame is hidden by the sliding door. Can be soft slid.

The bidirectional braking device of the present invention has the following effects.
(1) The sliding door can be reliably braked both when the sliding door is closed and when it is opened, and pinching of fingers and generation of impact noise can be suppressed.
(2) In the case of a two-stage upper and lower configuration, the braking distance (section) becomes long even if the stroke distance of the sliding door is left as it is, and in the case of an outset sliding door, the sliding door is securely closed until the door frame is hidden by the sliding door. Can be soft slid.

Both the one-way brake device unit and the two-way brake device unit of the present invention have the following effects.
(1) Since it is unitized, it is compact and easily stored and fixed in a sliding door.
(2) Since the wheels are provided, the sliding of the sliding door is smooth.

The sliding door with one-way braking unit and the sliding door with two-way braking unit of the present invention have the following effects.
(1) Since the compact braking unit is built in the sliding door, the appearance of the sliding door is not impaired.
(2) Since the sliding door can be softly slid, it is possible to prevent the finger from being caught and reduce the impact sound.

(A), (b) is an explanatory view when a sliding door is slid from a fully open state to a fully closed state to close an entrance. Exploded explanatory view of a wall, an entrance and a sliding door. (A) The external view of the one-way braking unit of this invention, (b) is explanatory drawing which decomposed | disassembled the one-way braking unit of (a) into the case and the braking device. 1A is an external view of a one-way braking device of the present invention, FIG. 2B is an exploded view of the one-way braking device of FIG. 1A, and FIG. (A) The external view of the bidirectional braking unit of this invention, (b) is explanatory drawing which decomposed | disassembled the bidirectional braking unit of (a) into the case and the braking device. (A)-(d) is an explanatory view of braking of the bidirectional braking unit of the present invention, (a) is an explanatory side view in a fully opened state, (b) is an explanatory side view of a braking process, and (c) is (a). (A) is an explanatory diagram of a portion A, and (d) is an explanatory diagram of a portion B in (b). (A)-(d) is explanatory drawing of the braking of the bidirectional braking unit of this invention, (a) is a side explanatory view in the state where the braking of the braking device started to be applied, (b) is an explanatory view of a fully closed state. , (C) is an explanatory diagram of a C portion of (a), (d) is an explanatory diagram of a D portion of (b),

(Embodiment)
FIG. 1A shows an outset lower load sliding door (hereinafter referred to as a “sliding door”) 1 moved to the right side in FIG. FIG. 1B is an explanatory view of a state in which the sliding door 1 is moved to the left side in FIG. 1 and the opening (entrance) 3 of the wall 2 is fully closed.

  When the sliding unit 1 is moved (slid) from the fully opened state in FIG. 1A to the fully closed state in FIG. When the sliding door 1 is soft-closed or the sliding door 1 is moved from the fully closed state in FIG. 1B to the fully open state in FIG. The sliding door 1 is braked to open the sliding door 1 softly.

[Brake unit]
The braking unit of the present invention includes a one-way braking unit in which one set of braking devices is incorporated in one case, and a two-way braking unit in which two sets are incorporated. The built-in braking device is the same in each case. Hereinafter, the braking device, and the one-way braking unit and the two-way braking unit incorporating the braking device will be described.

[One-way braking unit]
One example of the one-way braking unit 4 is shown in FIGS. The one-way braking unit 4 has one case 5 (FIG. 3B) and one braking device 6 (FIG. 3B) incorporated therein, and is attached to the bottom side of the sliding door 1 as shown in FIG. Thus, the sliding at the time of closing the sliding of the sliding door 1 is braked (decelerated) to perform soft sliding. A wheel unit 7 (FIG. 3B) is provided at the front and rear of the case 5, so that the wheels 8 of the wheel unit 7 rotate in the sliding direction when the sliding door 1 slides, so that the sliding door 1 can slide smoothly. It was made.

[Case]
The case 5 is horizontally long and can be accommodated and fixed in the inner space on the bottom side of the sliding door 1, and is preferably made of a material such as metal, aluminum, or rigid resin. The case 5 has a downward U-shape provided with a lower opening 5a (FIG. 3B), so that the braking device 6 and the wheel unit 7 can be housed and mounted inside the case.

[Brake device]
The braking device 6 has the external appearance shown in FIG. 4A, and includes a base 10, a starting locking device 11, a forward locking device 12, a movable stopper 13, a connecting device 14 shown in FIG. , A spring 15, a damper 16, and a damper support 17.

[base]
The base 10 (FIG. 4B) includes a horizontally long lower base 20 and a horizontally long upper base 21. An elongated guide groove 22 is opened in the lower base 20 in the longitudinal direction, and an upward L-shaped locking groove 23 is provided at the tip of the guide groove 22. The upper base 21 is also horizontally long, and a front end block 24 is fixedly connected to the front end in the longitudinal direction, and a rear end block 25 is fixed to the rear end in the longitudinal direction. The front end block 24 and the front end 20a of the lower base 20 are connected with screws 26, and the rear end 20b of the lower base 20 is connected and fixed to the vertically long block 32 attached to the rear end block 25 with screws 27. The lower base 20 and the upper base 21 are vertically opposed and connected as shown in FIG. A thick block 34 is connected and fixed at the right end of the lower base 20 and below the vertically long block 32.

[Starting lock]
In the starting stopper 11 (FIGS. 4B and 4C), the movable portion 28b is connected to the end of the fixed portion 28a by a pin 29, and the movable portion 28b can swing up and down. The pin 29 is inserted into the guide groove 22 of the lower base 20, so that the starting stopper 11 can reciprocate in the longitudinal direction of the guide groove 22.

[Connector]
The connecting member 14 (FIG. 4B) is in the shape of a thin plate and is arranged on the lower base 20. The proximal end 30 of the connecting tool 14 is connected and fixed to the fixing portion 28a of the starting locking tool 11 by a screw 31. The movable stopper 13 is connected to the distal end of the connecting tool 14.

[Movable stopper]
The movable stopper 13 (FIG. 4B) has a plate shape thicker than the connecting member 14, and has a projection 13a protruding above the center.

[Damper support]
The damper support 17 (FIG. 4 (b)) is in the form of a thin strip, and the stopper 17a is fixed to the distal end, and the proximal end 17b is fixed to the upper base 21 with screws 33 (FIG. 6 (c)). .

[damper]
An air cylinder, a nitrogen gas cylinder, or another cylinder can be used for the damper 16 (FIG. 4B). The illustrated damper 16 is an air cylinder, which includes a cylinder 16a, a rod 16b that moves in and out of the cylinder 16a, and the cylinder 16a is filled with air. The damper 16 is arranged and fixed on the damper support 17 (FIG. 6C). The rear end 16c of the cylinder 16a is inserted into and supported by the support hole 36 of the rear end block 25, and the tip of the rod 16b is connected and fixed to the jig 35. They are connected by pins 37. The front locking member 12 can swing up and down about the pin 37 as a rotation axis.

[spring]
The spring 15 ((FIG. 4 (b)) is in a contracted state. The spring 15 is locked to the upper base 21 as shown in FIG.6 (c). Specifically, the left end (front end) of the spring 15 ) Is locked by a forward lock 12a (FIG. 4 (b)) in the upper opening of the forward lock 12 and the right end (the other end) is locked by a rear lock 25a of the rear end block 25 (FIG. 4 (b)). 4B, reference numerals 60 and 70 are screws.

[Wheel unit]
The wheel unit 7 (FIG. 3B) is attached to both the front and rear ends of the case 5 with screws 38. The wheel units 7 on the front end side and the rear end side are the same, and a wheel 8 (FIG. 6C), a bearing for supporting a wheel shaft, and the like are housed in a wheel case, and the wheel 8 is rotatable. . An existing wheel unit can be used for the wheel unit 7.

  The one-way braking unit 4 having the above configuration (FIG. 3A) is housed in the case 5 and attached to the case 5 with screws 38 as shown in FIG. 3B. In the one-way braking unit 4 shown in FIG. 3B, the braking device 6 is attached to the right side of the case 5.

[Attachment of one-way braking device to sliding door]
As shown in FIG. 2, the one-way braking unit 4 is arranged and fixed in the accommodation space below the sliding door 1, and moves as the sliding door 1 slides. When the sliding door 1 in the fully opened state in FIG. 1A is slid to the fully closed state in FIG. 1B, the sliding of the sliding door 1 is braked, as shown in FIGS. 6C and 6D. As described above, the starting locking tool 11 and the front locking tool 12 in the one-way braking unit 4 are attached in the closing slide direction (X1 direction in FIGS. 6C and 6D: left direction). Conversely, when the sliding door 1 in the fully closed state in FIG. 1B is slid to the fully open state in FIG. 1A, the sliding of the sliding door 1 is braked as shown in FIG. (C) Conversely to (d), the starting locking tool 11 and the forward locking tool 12 in the one-way braking unit 4 are opened in the sliding direction (X2 direction in FIGS. 6C and 6D: right direction). Attach to.

[Bidirectional braking unit]
The two-way braking unit 40 has an external appearance as shown in FIGS. 5A and 5B. Two braking devices 6 are accommodated and fixed (built-in) in one case 5, and a wheel unit 7 is provided at the front and rear of the case 5. Is attached. The bidirectional braking unit 40 is mounted on the bottom side of the sliding door 1 as shown in FIG. The wheels 8 of the wheel unit 7 rotate when the sliding door 1 slides, so that the sliding door 1 can slide smoothly.

[Case]
The case 5 of the bidirectional braking unit 40 shown in FIGS. 5A and 5B has a length in which the two braking devices 6 can be housed and fixed in a line, and the wheel unit 7 can be housed and attached. The same length as or longer than the case 5 of the braking unit 4 can be used.

[Brake device]
The braking device 6 of the bidirectional braking unit 40 shown in FIG. 5B is the same as the braking device 6 shown in FIG. 4B, and two braking devices 6 are arranged side by side in a row and opposed to each other. The two braking devices 6 are arranged opposite to each other so that the braking directions are reversed. Specifically, it is arranged such that the right braking device 6 can brake the sliding of the sliding door 1 that slides closed, and the left braking device 6 can brake the sliding of the sliding door 1 that slides open.

[Installation on sliding door]
The two-way braking unit 40 shown in FIGS. 5A and 5B is also housed and fixed in the housing portion below the sliding door 1 as shown in FIG. As shown in FIG. 5B, the two-way braking unit 40 has the two braking devices 6 mounted in one case 5 in opposite directions. The sliding door 1 can be braked and the other braking device 6 can brake the sliding door 1 when the sliding door is opened.

[Brake when sliding sliding door closed by bidirectional braking unit]
The operation of the braking device 6 of the present invention will be described based on FIGS. 6 (a) to 6 (d) and FIGS. 7 (a) to 7 (d). FIGS. 6A, 6B, 7A, and 7B show the case where the bidirectional braking unit 40 is attached to the lower portion of the sliding door 1, and FIGS. 6C and 6D show FIGS. FIG. 7B is an explanatory diagram of the braking of the right braking device 6 of the two braking devices 6 of the bidirectional braking unit 40. FIGS. 7C and 7D are diagrams of the bidirectional braking unit 40 of FIGS. 7A and 7B. FIG. 3 is an explanatory diagram of braking of a right braking device 6 of two braking devices 6. When the sliding door 1 in the fully open state in FIG. 6A is slid to the left to bring it into the fully closed state as shown in FIG. 7B, braking of the right braking device 6 will be described below.

  When the sliding door 1 in the fully opened state in FIG. 6A is slid leftward, the case 5 and the starting locking tool 11 of the bidirectional braking device unit 40 move in the same direction as the sliding door 1. At this time, the tip end of the starting locking tool 11 is upward (FIG. 6C). When the starting stopper 11 slides to the floor stopper (operation block) S fixed to the floor F below the sliding door 1, the stopper stops at the floor stopper S (FIGS. 6D and 7D). ). If the sliding door 1 is continuously slid even when the starting locking tool 11 stops, the case 5 moves together with the sliding door 1 and the connecting tool 14 moves backward in the case 5 (the direction opposite to the moving direction of the case 5: FIG. 6). (Moves to the right in (a) and (b)). As a result of this retreating movement, the movable stopper 13 is pulled in the same direction, and the front locking member 12 placed on the movable stopper 13 is locked by the movable stopper 13 (FIG. 7A). The locked front locking member 12 is pulled by the spring 15 in the direction opposite to the moving direction of the case 5 (to the right in FIGS. 7A and 7D). As a result, the rod 16b of the damper 16 connected to the forward locking device 12 is pulled into the cylinder 16a of the damper 16, braking is applied to the base 10 (FIG. 7D), and the sliding door 1 is fully closed. Slowly slides after being braked just before At this time, the wheels 8 of the wheel unit 7 rotate in the sliding direction of the sliding door 1, and the sliding door 1 slides smoothly. At this time, the braking device 6 on the left side of FIG.

[Brake when sliding door is opened by bidirectional braking unit]
When the sliding door 1 in the fully closed state in FIG. 7B is fully opened by sliding it to the right, the sliding of the sliding door 1 is braked by the braking device 6 on the left side in FIG. 7B. The operation of the left braking device 6 at this time is the same as that at the time of sliding the sliding door. At this time, the braking device 6 on the right side of FIG. 7B returns to the original state before braking. This return operation is the reverse of the braking operation.

[Return action]
When the braking device 6 returns to the original state, the case 5 and the base 10 move back together with the sliding door 1 by the return sliding of the sliding door 1, and the locking of the starting locking tool 11 locked and fixed to the floor stopper S is stopped. It is released. If the sliding door 1 continues to return in this state, the case 5 also returns in the same direction and continues to move. As a result, the starting stopper 11, the connecting member 14, and the movable stopper 13 return, the spring 15 is extended and restored, the rod 16b of the damper 16 also returns, and the leading stopper 12 engages with the movable stopper 13. Stop and return to the state before braking.

[Brake when closing sliding door by one-way braking unit]
When the one-way braking unit 4 shown in FIGS. 3A and 3B is used, the one-way braking unit 4 is attached to a lower portion of the sliding door 1. In this case, since only one braking device 6 is accommodated in one case, the sliding door 1 in the fully open state is closed and the sliding door 1 in the fully closed state is opened. The mounting direction (direction) of the direction braking unit 4 is reversed. Specifically, when braking is performed at the time of closing slide, the braking device 6 is mounted on the right side as shown by a virtual line in FIG. On the contrary, the brake device 6 is mounted on the left side.

  When the sliding door 1 in the fully opened state is closed and slid, the braking is performed by operating in the same manner as the braking device 6 on the right side of the bidirectional braking unit 40. When the sliding door 1 in the fully closed state is opened and slid, braking is performed in the same manner as the braking device 6 on the left side of the bidirectional braking unit 40. In any case, when the sliding door 1 returns and slides, the braking device 6 does not operate to perform braking, but returns to the state before braking.

[Upper Guide]
In FIGS. 2, 6 (a), (b) and 7 (a), (b), reference numeral 50 denotes an upper guide, which suspends the upper part of the sliding door 1.

  The above description is an example of the present invention. In the present invention, if the problem to be solved by the invention can be solved, the number of parts to be used, the configuration of the parts, the size, the assembly structure, the connection structure, and the like can be changed.

1 Sliding door 2 Wall 3 Opening (doorway)
Reference Signs List 4 One-way braking unit 5 Case 5a Lower opening (of case) 6 Braking device 7 Wheel unit 8 Wheel 10 Base 11 Starter locking device 12 Front locking device 12a Front locking 13 Movable stopper 13a (Movable stopper) projection 14 Coupling 15 Spring 16 Damper 16a Cylinder (of damper) 16b Rod 16c (of damper) Rear end 17 (of cylinder) Stopper 17a Stopper (of damper support) 17b Base end (of damper support) 20 Lower base 20a (lower base) front end 20b (lower base) rear end 21 upper base 22 guide groove 23 locking groove 24 front block 25 rear end block 25a rear locking 26 screw 27 screw 28a fixed part 28b movable part 29 Pin 30 Base end (of connecting device) 31 Screw 32 Vertical block 33 Screw 3 Thick block 35 jig 36 support hole 37 pin 38 screw 40 bidirectional brake unit 50 the upper guide 60 Screw 70 Screw F floor S bed stopper (operation block)

Claims (8)

Attached to a sliding door that can be opened and closed, and brakes so that the sliding speed of the sliding door is reduced either before the sliding door is fully closed or shortly before the sliding door is fully closed or when the sliding door is slid either. One-way braking device,
The braking device includes a base, a starting locking device, a movable stopper, a forward locking device, a connecting device, a spring, and a damper, and the base is elongated in the sliding direction of the sliding door. A locking device, a forward locking device, and a movable stopper are slidably mounted.The starting locking device and the movable stopper are connected by a connecting device mounted on the base, and a spring is mounted on the front locking device mounted on the base. The distal end of the damper rod is connected to the distal end of the damper in the telescopic direction, and the braking device can be housed in the case.
When the case is attached to the lower part of the sliding door and the sliding door is closed or opened, the case and the starting locking tool move in the same direction as the sliding door, and the starting locking tool moves to the floor under the sliding door on the way. When the sliding door continues to slide after being stopped by being locked to the fixed floor stopper, the movable stopper is operated by the connecting tool, and the front locking tool is moved by the spring with the movement of the case. The base and the case are braked by pulling the damper rod connected to the forward lock into the cylinder of the damper, and this braking brakes the sliding door to which the case is attached. Then, when the sliding door slides slowly and the sliding door slides back in the opposite direction, the braking device operates in the reverse step to the operation at the time of the braking to return to the original state,
A one-way braking device, characterized in that: The one-way braking device according to claim 1,
A starting locking device, a coupling device, a movable stopper, a front locking device, a spring and a damper are arranged in two stages, up and down,
A one-way braking device, characterized in that: Attached to a sliding door that can be opened and closed, bidirectionally brakes so that the sliding speed of the sliding door is reduced both before the sliding door is fully closed and before the sliding door is fully opened during both sliding of the sliding door and sliding of the sliding door. A braking device,
The braking device is the braking device according to claim 1, wherein the two braking devices are housed in one case,
Of the two brake devices, one can brake the closing slide of the sliding door, and the other can brake the opening slide of the sliding door so that the braking direction is reversed and housed in the case. It is possible to brake the two-way slide of the closed slide and the open slide,
A two-way braking device, characterized in that: The bidirectional braking device according to claim 3,
A starting locking device, a coupling device, a movable stopper, a front locking device, a spring and a damper are arranged in two stages, up and down,
A two-way braking device, characterized in that: Attach to a sliding door that can be opened and closed, and slide so that the sliding speed of the sliding door is reduced either before the sliding door is fully closed or shortly before the sliding door is closed or opened. One-way braking unit,
In the one-way braking unit, the braking device and two wheels of the one-way braking device according to claim 1 or 2 are housed in one case, and two wheels are provided on a front end side and a rear end side of the case. Has been
A one-way braking unit, characterized in that: Attached to a sliding door that can be opened and closed, and brakes so that the sliding speed of the sliding door is reduced both before the sliding door is fully closed and before the sliding door is fully opened, both when the sliding door is closed and when it is opened. A two-way braking unit,
The two-way braking unit according to claim 3 or 4, wherein the two braking devices and two wheels are housed in one case, and the two wheels are a front end and a rear end of the case. Is provided on the side
A two-way braking unit, characterized in that: When the sliding door is closed or opened, before the sliding door is fully closed or fully opened, in a sliding door with a one-way braking unit that brakes the sliding door so that the sliding speed of the sliding door is reduced,
The one-way braking unit according to claim 5 is provided below a single sliding door,
A sliding door with a unidirectional braking unit. At the time of closing sliding of the sliding door and at the time of closing sliding, both in the trouble of fully closing the sliding door and before the fully opening, in the sliding door with a bidirectional braking unit that brakes the sliding door so that the sliding speed of the sliding door is reduced,
The bidirectional braking unit according to claim 6 is provided below a single sliding door,
A sliding door with a two-way braking unit.

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