JP6068535B2 - Sliding door braking device - Google Patents

Description

  The present invention relates to a sliding door braking device that gently opens and closes by reducing the opening and closing speed when the upper suspension type sliding door reaches a braking start position immediately before fully opened, fully closed, or fully opened and closed.

  Conventionally, the upper suspension type sliding door engages the door of the suspension unit mounted on the upper end with the sliding door rail so that it can run freely in the opening and closing direction, for example, when closed, when reaching the braking start position immediately before full closing, Various sliding door braking devices have been proposed in which a door is braked and closed slowly and quietly.

  For example, as shown in FIG. 15, the sliding door braking device fixes the contact body 3 in the sliding door rail 4 so as not to touch the suspension unit 2 mounted on the upper suspension type sliding door 1. A brake body 5 that generates a braking force is pivotally attached to the suspension unit 2. When the brake door 5 reaches a braking start position immediately before the sliding door 1 is fully closed, the brake rubber 6 protruding from the brake body 5 is attached with a spring. The friction force generated at that time acts as a braking force against the force against the abutment body 3 and acts as a braking force, whereby the sliding door 1 is decelerated and closed gently and slowly (patent) Reference 1 and 2).

Japanese Patent No. 3961531 Japanese Patent No. 2872620

  However, the conventional sliding door braking device described above utilizes the frictional force when the brake rubber 6 of the braking body 5 provided on the sliding door side slides against the spring 3 against the spring biasing force and slides against the sliding door. Because the structure is designed to brake, the same frictional force acts on the sliding door even if the weight of the sliding door is different, so it is necessary to prepare a model that applies the braking force suitable for sliding doors with different weights each time. As a result, there is a problem that the cost becomes very high.

  Accordingly, an object of the present invention is to provide a sliding door braking device that applies a braking force adapted to sliding doors having different weights, and to drastically reduce costs.

Therefore, according to the first aspect of the present invention, for example, as shown in the embodiment shown below, the sliding door D in which the guide groove 15 is recessed in the length direction of the lower end surface 19a is suspended so as to run freely in the opening and closing direction. A sliding door braking device R that brakes while guiding the sliding door D by engaging an existing steady guide G with the guide groove 15 on the floor surface F under the track on which the sliding door D travels, and the sliding door D is fully opened. When riding on the steady rest guide G immediately before full closing or full opening and closing, a braking member B that generates a braking force adapted to the weight of the sliding door D is provided in the guide groove 15, and the braking member B A fixed braking member 20 is mounted in the guide groove 15 with the fixed friction surface 20a facing downward, and a movable brake is slidably connected to the fixed braking member 20 by bringing a sliding friction surface 30a into contact with the fixed friction surface 20a. It consists of material 30 And characterized by being formed by the inclined surface of the inclined angle matching the fixed friction surface 20a and the sliding friction surface 30a to each other.

Invention according to claim 2, in the sliding door braking device R according to claim 1, as illustrated embodiment shown in example below, the brake member B is brought into contact with each other, wherein the fixed brake member 20 and the movable brake The material 30 is made of a material having a different friction coefficient between the movable braking member 30 and the steady rest guide G.

According to a third aspect of the present invention, in the sliding door braking device R according to the first or second aspect , for example, as shown in the embodiment shown below, the steadying guide G includes a sliding door D in a fully open position and a fully closed position. It is characterized by being erected at a position where it always engages with the guide groove 15 when traveling between the two.

  According to the first aspect of the present invention, when the sliding door is opened and closed, when the sliding door rides on the existing steadying guide on the floor immediately before the fully opened, fully closed or fully opened and closed, The friction force generated by lifting and sliding a heavy sliding door that is in pressure contact with the stop guide acts on the sliding door as a braking force, so that the momentum of the sliding door is effectively and effectively buffered so that it does not hit the door. It can be slowly opened and closed slowly.

  Moreover, according to the invention of claim 1, since the sliding door is a top-hanging type, when it rides on the steady rest guide via the braking member and travels in a pressure contact state, the entire sliding door is lifted and slid, At that time, depending on the weight of the suspended sliding door, the frictional resistance between the braking member and the steady rest guide increases as a braking force, and it is necessary to prepare a model that applies a braking force adapted to the weight of various sliding doors. In addition, the cost can be drastically reduced.

  In addition, according to the first aspect of the present invention, an existing steadying guide is used on the floor surface under the track on which the sliding door travels, and the steadying guide is engaged with the guide groove while guiding the sliding door. Since the brake is configured, the number of parts required for braking is reduced, and the structure is simplified as a whole, and the cost can be further reduced.

According to the first aspect of the invention, since the braking member is in sliding contact between the fixed friction surface and the sliding friction surface of the fixed braking material and the movable braking material, the relatively strong friction force generated at that time is the primary braking force. Since the secondary braking force generated by lifting and sliding a heavy sliding door in pressure contact with the steady rest guide via this braking member also acts on the sliding door. The momentum of the sliding door can be buffered and the door can be opened slowly and slowly so as not to hit the door.

According to the second aspect of the present invention, the fixed braking material and the movable braking material of the braking member and the fixed braking material and the movable braking material, which are in contact with each other and have different friction coefficients, are included in the movable braking material and the steadying guide. Since the sliding guide slides while rubbing, the relatively strong frictional force generated at that time acts on the sliding door as a braking force, so that the momentum of the sliding door is effectively and effectively buffered so that it does not hit the door. It can be slowly opened and closed slowly.

According to the invention described in claim 3 , the steady rest guide is erected on the floor surface at a position where the sliding door always engages with the guide groove when the sliding door travels between the fully open position and the fully closed position, Even if it is installed, it is located near an opening with a stand or the like, so that it is possible to facilitate operations such as attachment / detachment and repair.

It is a front view which shows the sliding door structure provided with the sliding door braking device which is an example of this invention in a half open state of a sliding door. It is a perspective view which shows the sliding door structure provided with the sliding door braking device in the state by which the sliding door is half opened. It is a disassembled perspective view which shows a braking member. It is a disassembled perspective view which changes a braking member and changes direction with FIG. It is a (A) assembly perspective view (B) assembly top view (C) assembly top view which shows the braking member of a sliding door braking device. (A) Assembly side view showing a braking member (B) Assembly side view showing the position of a movable braking member. (A) Assembly longitudinal cross-sectional view which shows a braking member (B) It is an assembly longitudinal cross-sectional view which changes and shows the position of a movable braking material. It is a partial longitudinal cross-sectional view of the sliding door braking device which shows the primary braking state which brakes a sliding door just before full opening in steps (a), (b), and (c). It is the fragmentary longitudinal cross-sectional view of the sliding door braking device which shows the secondary braking state which rides on a sliding door and brakes just before full opening in steps (a) and (b). It is a partial longitudinal cross-sectional view of the sliding door braking device which shows the driving | running | working state of the sliding door immediately after closing a door divided into (a) and (b) in steps. It is a fragmentary longitudinal cross-sectional view of the sliding door braking device which shows the driving | running | working state of the sliding door just before full closure divided into (a) and (b) in steps. It is the elements on larger scale of the sliding door braking device explaining the slipping prevention structure of a movable braking material from the fixed braking material of a braking member by door operation which changes the opening-and-closing direction of a sliding door. It is a fragmentary longitudinal cross-sectional view of the sliding door braking device which shows the other example of this invention which a braking member consists of a single body of a resin material. It is a fragmentary longitudinal cross-sectional view of the sliding door braking device which shows another example of this invention which a braking member consists of a leaf | plate spring. It is (a) longitudinal cross-sectional view (b) front view which shows the conventional sliding door braking device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a sliding door structure provided with a sliding door braking device as an example of the present invention in a half-open state. The sliding door structure A in the illustrated example is a top hanging type in which a sliding door rail 10 fixed on the ceiling side is engaged with a door wheel mounted on the upper end, and the sliding door D is suspended so as to be able to run in the opening and closing directions in the left and right directions in the figure. Is configured to open and close the opening S surrounded by the floor F and the door frame C by placing the hand on the puller 11 and running the sliding door D in the opening and closing direction. Reference symbol W denotes a door pocket wall on which sliding doors D having the openings S fully opened are arranged in an overlapping manner.

  When the sliding door D slides the sliding door D to open and close the opening S, the sliding door D travels a steady guide G that guides the sliding door D that travels in the opening and closing direction so that it does not move sideways. It is already installed on the lower floor F.

  The sliding door D is made of, for example, a wooden panel, and a pair of end plate materials are bonded together with a frame body assembled in a lattice pattern between upper and lower horizontal fences, left and right vertical fences, and vertical and horizontal bars between each fence. As a result, the guide groove 15 is recessed along the length direction of the lower end surface 19a. Therefore, the existing steady rest guide G is erected on the floor surface F at a position where the sliding door D always engages with the guide groove 15 when the sliding door D travels between the fully open position and the fully closed position.

  Therefore, the sliding door structure A engages the upper end door wheel with the traveling path 16 of the sliding door rail 10, engages the engagement piece 13 of the steady rest guide G with the lower end guide groove 15, and suspends the sliding door D, When opening and closing, the structure is such that the sliding door D is operated in the opening and closing direction by holding the pulling handle 11, but when the opening S is opened by pulling the sliding door D in the opening direction X, braking immediately before the sliding door D is fully opened is started. When reaching the position, the sliding door braking device R of the present invention is started, the momentum of the sliding door D is buffered, the vehicle is decelerated so that it does not hit the vertical frame portion 17 of the door frame C, and the door is opened slowly and slowly.

  Therefore, the sliding door braking device R is configured by a braking member B installed in the guide groove 15 of the sliding door D and an existing steadying guide G standing on the floor surface F.

  The braking member B in the illustrated example is composed of a fixed braking member 20 made of a resin material of a different type and a movable braking member 30 that slides relative to the fixed braking member 20 even though they are both made of resin.

  The fixed braking member 20 is made of, for example, a polyamide having a large hardness and friction coefficient, and has a slender box-like flexible shape with one side open, as shown in FIGS. 3 and 4, and a mounting surface 20b attached in the guide groove 15. Is formed into a wedge-shaped case having an inclined surface, and a fixed friction surface 20a is formed on the inclined surface. The fixed braking member 20 is provided with a guide groove 21 that is elongated in the length direction of the fixed friction surface 20a.

  The movable braking member 30 is made of, for example, polyacetal having a hardness and a friction coefficient smaller than that of polyamide and made of the same resin as that of the fixed braking member 20, but is made of a different type of resin and has a rectangular lateral hole 22 in the short width direction. It is formed into a slender tongue shape that can be bent in a hollow state arranged in parallel. The sliding friction surface 30a that is in contact with the fixed friction surface 20a of the fixed braking member 20 is formed by an inclined surface having an inclination angle that aligns with each other without a gap. The load surface 30b riding on the steady rest guide G is formed in parallel with the horizontal mounting surface 20b of the fixed braking member 20 when the sliding friction surface 30a is in contact with the fixed friction surface 20a.

  In the movable braking member 30, the weighted surface 30b is formed on one end side of the movable braking member 30 in a taper that gradually tapers toward the end edge, and further provided with a slope portion 30C whose end edge is inclined in a circular arc shape. A stopper convex portion 30d having a triangular cross section is provided on the end side. On the sliding friction surface 30a, an engagement rib 30e that projects into the guide groove 21 of the fixed braking member 20 is provided in the lengthwise direction. The engagement groove 21 of the fixed braking member 20 is formed longer than the engagement rib 30e by a length corresponding to the stroke from when the sliding door D reaches the braking start position P until braking.

  Therefore, as shown in FIG. 5, the braking member B is movable to the fixed braking member 20 with the engagement rib 30e engaged with the engagement groove 21 and the sliding friction surface 30a in contact with the fixed friction surface 20a. The materials 30 are connected and assembled. As shown in FIGS. 6 and 7, the braking member B is configured such that the mounting surface 20b of the fixed braking member 20 is directed to the guide groove so that the slope portion 30C of the movable braking member 30 faces the direction in which the steady rest guide G abuts when the door is opened. As shown in FIG. 1 and FIG. 2, it is installed in the guide groove 15 on the end portion side having the handle 11 of the sliding door D.

  The steady rest guide G is made of the same resin material as that of the brake member B, but is made of a different kind of resin material, for example, a polyamide having a large hardness and friction coefficient, and the engaging piece 13 projects upward on the mounting plate 14 of the base. Set up. Accordingly, as shown in FIG. 8B, the steady rest guide G is placed on the floor surface at the braking start position P where the slope portion 30c of the braking member B collides with the engagement piece 13 immediately before the sliding door D is fully opened. Fix at F. Moreover, it is the braking start position P, and is already provided in a position where the engagement piece 13 is engaged with the guide groove 15 whenever the sliding door D travels between the fully open position and the fully closed position.

  In the sliding door structure A described above, when the sliding door D in the fully closed state is opened, as shown in FIGS. 1 and 2, when the sliding door D is pulled in the opening direction X by placing a hand on the pulling handle 11, As the door roller rolls along the traveling path 16 of the rail 10, it travels and opens as shown in FIG.

  The sliding door braking device R according to the present invention is the steady rest that stands when the sliding door D reaches the braking start position P as shown in FIG. The operation is started when the slope portion 30c of the movable braking member 30 collides with the engagement piece 13 of the guide G. Then, the braking member B is pushed by the steady rest guide G, and the movable braking member 30 slides on the fixed friction surface 20a against the fixed braking member 20 as shown in FIGS. 6 (A) and 7 (A). Slide while bringing the surface 30a into sliding contact. Then, in the braking member B, the engaging rib 30e hits the groove end edge of the guide groove 21, and the movable braking member 30 stops at the sliding restriction position as shown in FIG.

  The sliding door braking device R is configured so that, while the movable braking member 30 slides relative to the fixed braking member 20, the fixed braking member 20 made of the same resin material but having a different friction coefficient, the fixed friction surface 20a of the movable braking member 30, and the sliding friction surface. Since 30a is in sliding contact, a relatively strong frictional force generated at that time acts on the sliding door D as a primary braking force.

  Next, in the sliding door braking device R, the movable braking member 30 stops at the sliding restriction position, and when the sliding door D is opened as shown in FIG. 9A, the sliding door D follows the slope of the slope portion 30c. It rides on the steady rest guide G via the movable braking member 30 and slides in the opening direction X while being pressed against the steady rest guide G. As shown in FIG. It hits the frame portion 17 and stops at the fully open position to fully open the opening S.

  Accordingly, the sliding door braking device R is configured so that (1) the elastic braking member B bends according to the weight of the sliding door D until the sliding door D rides on the steady rest guide G and travels in a pressure contact state and fully opens. So that the impact between the braking member B and the steady rest guide G and the impact and noise at the time of climbing are suppressed. (2) Since the movable braking member 30 and the steady rest guide G, which are made of the same resin material but having different friction coefficients, slide while rubbing, a relatively strong frictional force generated at that time is applied to the sliding door D as a primary braking force. Works. (3) In addition, because the sliding door D is a suspended type, it rides on the steady rest guide G via the braking member B, travels in a pressed state, and lifts and slides the entire heavy sliding door. Even if the sliding door D is heavy, the frictional resistance also increases in accordance with the weight of the sliding door D, and a correspondingly strong frictional force acts on the sliding door D as a secondary braking force.

  As a result, when the sliding door braking device R opens the opening S by pulling the sliding door D in the opening direction X, the sliding door braking device R starts when reaching the braking start position immediately before the sliding door D is fully opened. Next to the primary braking force due to the frictional force generated by rubbing against the stop guide G, (b) the heavy sliding door D in pressure contact with the steady guide G is lifted through the brake member B and slides. Since the secondary braking force generated by the above acts on the sliding door D, the speed of the sliding door D is effectively and effectively buffered and decelerated so that it does not hit the vertical frame portion 17 of the door frame C strongly and slowly. Can be opened.

  Moreover, in the sliding door braking device R, since the sliding door D is a suspended type, when it rides on the steady rest guide G via the braking member B and travels in a pressure contact state, the entire heavy sliding door is lifted and slid. Depending on the weight of the suspended sliding door D, the frictional resistance between the braking member B and the steady rest guide G increases as a braking force, and a model is prepared each time that applies a braking force adapted to the weight of various sliding doors. There is no need, and the cost can be drastically reduced.

  On the other hand, in the illustrated example, when the fully opened sliding door D is closed, when the sliding door D is pulled and travels in the closing direction Y, the direction of the movable braking member 30 of the braking member B stopped at the sliding restriction position is changed, and FIG. As shown in FIGS. 11 (a) and 11 (b), the vehicle travels sequentially in the closing direction Y while being in sliding contact with the fixed brake member 20 in the opposite direction to that when the door is opened. Since some frictional resistance remains depending on the weight of the suspended sliding door D, the braking force acts on the sliding door D to close the door while gradually decelerating.

  In the sliding door braking device R, when the door operation is changed from the opening direction X to the closing direction Y in this way, as shown in FIG. 12, for example, the fixed friction surfaces of the fixed braking material 20 of the braking member B and the movable braking material 30 are fixed. 20a and the sliding friction surface 30a slip, and there is a possibility that the movable braking member 30 may come off from the fixed braking member 20 indicated by a dotted line in the figure and be detached. However, since the movable braking member 30 is provided with the stopper convex portion 30d that is engaged with the engagement piece 13 of the steady rest guide G when the movable braking member 30 is in the sliding restriction position with respect to the fixed braking member 20, the fixed braking member 20 is provided. It is possible to prevent it from coming off and leaving.

  By the way, in the sliding door braking device R of the illustrated example, the braking member B includes the fixed braking material 20 and the movable braking material 30 that slides with respect to the fixed braking material 20, and the fixed braking material 20 and the movable braking material. The frictional force generated when the fixed frictional surface 20a and the sliding frictional surface 30a are in sliding contact with each other also acts as a primary braking force so that the running of the sliding door D is braked.

  However, the present invention is not limited to such a sliding friction structure. When the sliding door slides in the pressure contact state on the steady rest guide G, the sliding door uses the frictional resistance generated according to the weight of the sliding door as a braking force. It is sufficient if a braking structure acting on D is provided, which is an indispensable matter indispensable to the configuration of the invention. For example, as shown in FIG. Can also be configured. The braking member B1 is provided with slope portions 25 and 26 for guiding the sliding door D to climb on the load surface 24 along the inclination at both ends in the longitudinal direction.

  In the illustrated other example, as shown in FIG. 13A, when the sliding door D is opened, the sliding door D rides on the steady rest guide G via the movable braking member 30 along the slope of the slope portion 25, As shown in FIG. 13 (b), it slides while rubbing toward the opening direction X in the riding state, and as shown in FIG. 13 (c), it hits the vertical frame portion 17 of the door frame C and stops at the fully open position. Part S is fully opened.

  Therefore, in the other examples shown in the drawings, the sliding door D is a suspended type, and therefore, when traveling in a pressure contact state on the steady rest guide G via the braking member B1, the entire heavy sliding door is lifted and slid. Even if the sliding door D is heavy, the frictional resistance increases according to the weight of the sliding door D, so that a strong frictional force acts on the sliding door D as a braking force, so that the momentum of the sliding door D is effectively and effectively buffered. The door can be opened slowly and slowly so as not to hit the C vertical frame portion 17 strongly.

  Further, for example, as shown in FIG. 14, the present invention can be configured by a single body obtained by bending a leaf spring as the braking member B <b> 2. The braking member B2 is formed into a taper by bending both ends in the length direction, and slope portions 35 and 36 are provided on the steady rest guide G to guide the sliding door D climbing onto the load surface 34 along the inclination. .

  In the example shown in FIG. 14, when the sliding door D is opened as shown in FIG. 14A, the sliding door D rides on the steady rest guide G via the movable braking member 30 along the slope of the slope portion 35. As shown in FIG. 14 (b), it slides while rubbing in the opening direction X in the riding state, hits the vertical frame portion 17 of the door frame C, stops at the fully open position, and fully opens the opening S.

  Therefore, even in the example shown in the drawings, the sliding door D is a top-suspended type, and therefore, when traveling in a pressure contact state on the steady rest guide G via the braking member B2, the entire heavy sliding door is lifted and slid. Even if the sliding door D is heavy, the frictional resistance increases according to the weight of the sliding door D. The strong frictional force acts on the sliding door D as a braking force, thereby effectively and effectively buffering the momentum of the sliding door D. The door can be opened slowly and slowly so as not to hit the vertical frame portion 17 of the door.

  The sliding door braking device R in the above illustrated example generates a braking force adapted to the weight of the sliding door D when it rides on the existing steady guide G on the floor F at the braking start position P immediately before the sliding door D is fully opened. Although the brake member was configured to be embedded in the guide groove 15 having the lower end surface 19a of the sliding door D, not only when the brake is applied to the sliding door when fully opened, but also when the sliding door is fully closed or fully opened and closed, When each rides on the existing steadying guide at the immediately preceding braking start position, the braking force adapted to the weight of the sliding door is applied to the sliding door, effectively and effectively buffering the momentum of the sliding door to make a slow deceleration You can also.

B, B1, B2 Braking member D Sliding door F Floor surface G Swing guide R Sliding door braking device P Braking start position 15 Guide groove 20 Fixed braking material 30 Movable braking material

Claims (3)

A sliding door with a guide groove recessed in the length direction of the lower end surface is suspended so that it can run freely in the opening and closing direction, while an existing steadying guide is engaged with the guide groove on the floor surface under the track on which the sliding door runs. A sliding door braking device that brakes while guiding a sliding door, and includes a braking member that generates a braking force adapted to the weight of the sliding door when the sliding door rides on the steady rest guide immediately before full opening, full closing, or full opening and closing. and interior to the guide groove, the brake member, the guide and the fixed brake member mounting a fixed friction surface in the groove and down, sliding relative to the fixed brake member is brought into contact with the sliding friction surface on the fixed friction surface It consists of a movable damping material for movably connecting, and forming an inclined surface of the inclined angle to one another integer if the sliding friction surface and the stationary friction surface, the sliding door braking device. The sliding door brake according to claim 1, wherein the braking member is made of a material having different friction coefficients between the fixed braking material and the movable braking material, and the movable braking material and the steadying guide, which are in contact with each other. apparatus.   The sliding door braking device according to claim 1 or 2, wherein the steady rest guide is erected at a position where the sliding door always engages with the guide groove when the sliding door travels between a fully open position and a fully closed position.

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