JP2011162969A - Suspended traveling device of sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suspended traveling device of a sliding door, which can automatically adjust a relationship between a sliding door body and a sash hanger without reference to an installed condition without undergoing complication of a structure, and which enables smooth traveling without imposing an excess load on the sash hanger. <P>SOLUTION: This suspended traveling device makes the sliding door travel in the state of being suspended by being connected to a mounting unit mounted on the top of the sliding door body, by a suspended shaft suspended in the center of the sash hanger travelable along a guide rail in an upper portion of a sliding door installation location of a building. The suspended traveling device includes: the suspended shaft which is connected to the mounting unit on the side of the sliding door; a connecting block for supporting a head portion of the suspended shaft; and the sash roller which is formed so that a pair of right and left supporting portion pieces having two rollers disposed in front and rear positions at a required spacing can be independently and pivotally supported on both the sides of the connecting block in a central position. The suspended shaft, which has a lower end mounted on the top of the sliding door body and which is connected in a vertically adjustable manner by an adjusting mechanism, has the head portion connected and supported in such a manner as to be freely oscillatable frontward, backward, rightward and leftward inside the connecting block. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sliding traveling device for a sliding door that is configured to be supported and guided so that the sliding door can be lightly traveled along a guide rail provided along an upper arm of the sliding door device. is there.

  The sliding door device provided at the entrance of a building mainly includes a suspension car that is suspended by a guide rail disposed in the upper part of the building and a lower end of a connecting rod that is connected to the upper part of the vertical axis. The door body is suspended by connecting to a mounting bracket attached to the top of the door. The hanging means of the sliding door by the suspension vehicle and the mounting bracket and the connecting rod connecting the both is provided with a vertical adjustment device by a screw mechanism mainly for adjusting the hanging height of the sliding door (door). Yes. The suspension wheel is generally formed so that the connecting rod is suspended and connected at the center of a base member in which four rollers are arranged two by two at a required interval before and after in the traveling direction. The door body is suspended by connecting the lower end portion of the connecting rod hanging from such a suspension vehicle to a mounting bracket attached to the top of the door body, and the suspension vehicle travels along the guide rail. The sliding door (door) is opened and closed.

  In general, an entrance / exit with a sliding door provided in a building has a three-sided frame that is attached to the building so as to enclose the opening. Correcting and attaching only the installation part of the sliding door device to a correct state will give a delicate correction to the place to be attached to the building, which requires a lot of work. Further, the member used may be twisted. Therefore, when a sliding door is installed according to the prior art, when there is the inclination, a load corresponding to the inclination is irregularly generated in the suspension support device of the sliding door, and therefore, it may become overloaded when opening and closing the sliding door. Inevitable. In other words, there is a problem that opening and closing of the sliding door becomes heavy. Therefore, the sliding door provided at such an entrance is attached by adjusting a guide rail so that the sliding door can operate along the guide rail according to the state of the existing building. Therefore, since the door suspension support device in the conventional sliding door device has the above-described configuration, the guide rail is not arranged accurately and horizontally, so that the suspension vehicle travels on the guide rail. The four rollers are not always in contact with the guide rail. If the level of the guide rail is not good, one of the four rollers floats and receives an unbalanced load on the other rollers. As a result, traveling cannot be performed smoothly. In other words, excessive driving force (power) is required for traveling. Therefore, for example, a guide roller is attached so that it can be moved up and down at the lower part of the door body of the sliding door to cope with an opening error in the up and down direction, and the hanging height by the suspension car can be adjusted in the up and down direction with a screw part provided on the connecting rod (See Patent Document 1).

  However, even if the height adjusting mechanism is provided in the hanging part of the sliding door, as long as the level of the guide rail attached along the upper arm of the opening of the building is not accurate, the opening / closing operation of the sliding door I cannot be satisfied with smooth running.

  Therefore, a suspension support device for a sliding door using a suspension wheel that improves the above-described phenomenon so that all rollers abut against a guide rail having a levelness and a twist to prevent an unbalanced load. 2 proposed. However, in this sliding door suspension support device, there is no problem with the displacement of each roller in the traveling direction (front-rear direction) of the guide rail, but the inclination of the guide rail in the width direction (left-right direction) with respect to the guide rail. Since the pivot shaft center of the suspension vehicle corresponding to the above is provided at a position below the roller shaft center, the entire suspension vehicle has a longer (higher) dimension in the vertical direction. For this reason, there is a problem that the size of the gap formed between the top of the sliding door main body and the lower surface of the guide rail becomes wide, which is inconvenient because the shielding effect between the outdoors and the room is lowered. In particular, in buildings where large doors are used, if the gap is large, the efficiency of air conditioning and the like is lowered, so that improvement is required.

Japanese Patent No. 2880653 JP 2008-115568 A

  The present invention has been made to solve the above-described problems, and can automatically adjust the relationship between the sliding door body and the suspension car regardless of the installation state without complicating the structure. It is an object of the present invention to provide a sliding traveling device for a sliding door having a configuration capable of smoothly traveling without applying an excessive load.

In order to achieve the above object, a sliding traveling device for a sliding door according to the present invention comprises:
A suspension shaft that is suspended from the center of a suspension vehicle that can run along a guide rail provided at the top of the building's sliding door installation site. It is connected to an attachment unit that is attached to the top of the sliding door body. A sliding door hanging traveling device for traveling a sliding door,
A suspension shaft connected to the mounting unit on the sliding door side, a connection block for supporting the head portion of the suspension shaft,
A pair of left and right support parts each having two rollers arranged at the front and rear at a required interval, and a suspension wheel formed so as to be pivotally supported on both sides of the connecting block at a central position;
Consists of
The lower end of the suspension shaft, which is attached to the top of the sliding door body and is connected to be adjustable up and down by an adjustment mechanism, has an upper portion that is connected and supported so as to be swingable back and forth and right and left inside the connection block. It is characterized (first invention).

  In the above invention, the suspension shaft is formed in a flat cone shape with a wide angle centered on the shaft center, with the peripheral surface of the upper end head portion formed in a hemispherical shape and connected to the shaft portion. (2nd invention).

  In the present invention, the connection block is provided with a suspension shaft support hole penetrating in the vertical direction at the center thereof, and the head portion peripheral surface of the suspension shaft is received at the inner and lower portions of the suspension shaft support hole. It is preferable that a hemispherical seat is formed and a pivot shaft pin hole is provided penetrating in a transverse direction perpendicular to the axis of the suspension shaft support hole (third invention).

  Furthermore, the connecting block according to the first invention or the third invention is formed as a unitary structure so as to form a guide surface that maintains the parallelism of the roller support pieces whose both side surfaces pivot on both sides. (4th invention). The connecting block includes a plate-bending frame having a function of guiding and maintaining parallelism of the roller support pieces, and a hemispherical seat in the suspension shaft support hole. It is preferable that the pivot shaft pin hole is formed so as to pass through both of the frame and the suspension shaft holding portion piece. 5 invention).

  According to the present invention, each roller of the suspension wheel is supported by the support piece that is slidably movable back and forth on both sides with respect to the connecting piece, so that it can be freely displaced according to the condition of the guide rail. Thus, all the rollers can always run in contact with the guide surface of the guide rail. In a fixture with a sliding door body that is supported by being suspended by being connected to a suspension vehicle by a suspension shaft, the connecting piece connected to the suspension shaft rotates in a direction that intersects the traveling direction. Since the traveling vertical plane passing through the central axis of the upper support structure member provided with the guide rail and the traveling vertical plane passing through the central axis of the sliding door do not coincide with each other and are displaced, the suspension car and the fixture The suspension shaft that connects the two is tilted by the rotational displacement of the connecting piece on the fixture side to maintain the connection, or is supported in a state in which a suspension load acts on the suspension shaft while the sliding door body is slightly tilted. Therefore, it is possible to maintain the connection with the suspension vehicle side by the rotational displacement of the connecting piece on the fixture side, and the rollers can run by rolling without lifting from the guide rail with the load acting on the suspension vehicle. Even so, there is an effect that the sliding door can be opened and closed smoothly without applying a large load to the suspension vehicle.

FIG. 1 is an overall view of a sliding door provided with a sliding traveling device for a sliding door according to the present invention. FIG. 2 is a front view (a), a plan view (b), a bottom view (c), and a right side view (d) showing an embodiment of a sliding door hanging traveling device. 3 is a sectional view taken along line AA in FIG. 2 (a), a sectional view taken along line BB (b), and a sectional view taken along line CC. FIG. 4A is a diagram showing a connection mode between a mounting unit attached to the top of the sliding door and the suspended traveling apparatus, and FIG. 4B is a diagram showing a relationship of the sliding door with respect to the entrance of the building. FIG. 5 is a diagram illustrating an operation mode of the suspended traveling apparatus, and is a normal state diagram (a) and a mode diagram (b) in which the guide rail side is inclined in the width direction. FIG. 6 is a displacement correspondence diagram (a) in the width direction showing a state in which the main part of the suspended traveling device corresponds to the inclination of the sliding door, and a displacement correspondence diagram (b) in the traveling direction of the guide rail. FIG. 7 is a plan view (a), a front view (b), a bottom view (c) and a right side view (d) showing a second embodiment of the sliding traveling apparatus for sliding doors according to the present invention. FIG. 8 is an exploded view of the suspended traveling device shown in FIG. 9 is a cross-sectional view taken along the line DD in FIG. 7 (a) and a cross-sectional view taken along the line EE (b).

  Next, specific embodiments of the sliding traveling apparatus for sliding doors according to the present invention will be described with reference to the drawings. In addition, 1st Embodiment is employ | adopted as the normal sliding door.

(First embodiment)
As shown in FIG. 1, the sliding traveling apparatus 10 for sliding doors of this embodiment is guided by a guide rail 3 attached along the side surface of an upper support structure member 2 (upper gutter) attached to the upper part of the entrance / exit of a building. The sliding door 6 is provided at least at two locations on the upper side, and substantially functions as a sliding door suspension vehicle.

  The suspension traveling device 10 is attached to a suspension vehicle 11 that is movable along the guide rail 3 and a top portion 6a of a sliding door 6 that is suspended from the center of the suspension vehicle 11 and opens and closes the entrance A1 of the building A. The suspension shaft 20 is connected to the mounting unit, and the connection block 15 is configured to support the suspension shaft 20. In the following description, for convenience of explanation, the direction of traveling along the guide rail 3 is referred to as “front-rear direction”, and the direction intersecting the traveling direction of the guide rail 3 is referred to as “width direction (also referred to as left-right direction)”. Called.

  The suspension wheel 11 is arranged with the connecting block 15 in the central part, and a pair of support pieces 12 and 12 are pivotally supported on the connecting block 15 in the central part in parallel with both sides in the width direction of the connecting block 15. The roller 13 is rotatably supported at a required interval in the front-rear direction of the support pieces 12 and 12.

  As shown in FIG. 2 (b), the support parts 12 and 12 are made of a metal plate having a required size, and the central portion 12a bulges outward and bends inward at the front and rear positions to receive a roller. Parts 12b, 12b are provided, and both long end parts 12c are bent inwardly so as to abut each other's end part 12c, and the pair of left and right support parts 12, 12 are symmetrical. Is formed.

  Further, the roller 13 can be rotated by the shaft pin 14 at the roller receiving portions 12b and 12b at a required distance from a pivotal support position (described later) of the support piece 12 with respect to the support pieces 12 and 12 as described above. The roller 13 attached to the left and right support pieces 12 and 12 is provided in a parallel state in the front-rear direction. The rollers 13 attached to the left and right support pieces 12 and 12 are supported so as to coincide with the distance between the rollers 13 guided along the guide grooves 3a and 3a of the guide rail 3. Further, as shown in FIG. 3A, the shaft pin 14 that supports the roller 13 is fitted on the back side with a base end portion 14a in a roller receiving portion 12b of the support piece 12 through a mounting hole. The roller 13 is axially supported by the portion that is attached and protrudes outward, and the tip end 14c of the shaft pin 14 is crimped to the inner ring end of the bearing 13b incorporated in the roller 13, and is integrally attached. . Reference numeral 14d in the figure denotes a washer that also serves as a spacer.

  Further, the connecting block 15 is formed of a metal or a resin in a shape in which circular bosses 15b and 15b protrude in both width directions of a main body 15a formed in a thick square with a required dimension, as shown in FIG. As shown in a) to (c), a suspension shaft support hole 16 penetrating in the vertical direction at the center is provided, and the head portion peripheral surface of the suspension shaft 20 is provided in the lower portion of the suspension shaft support hole 16. A hemispherical seat 16a is formed for receiving it. In addition, a pivot shaft pin hole 16c is provided in the center so as to penetrate in a transverse direction in the width direction perpendicular to the axis of the suspension shaft support hole 16. The suspension shaft support hole 16 is formed in an elliptical shape with the lower end portion 16b being a long axis in the lateral direction.

  On the other hand, as shown in FIGS. 3B and 3C, the suspension shaft 20 has a required length dimension such that the peripheral surface 22 of the upper end head portion 21 is formed in a hemispherical shape and is connected to the shaft portion 20a. The upper surface 23 (end surface) of the head portion 21 is formed in a wide-angle flat conical shape centering on the axis. A screw portion 24 is formed at the lower end portion of the suspension shaft 20 and is connected to a sliding door height adjusting mechanism that is provided in an attachment unit that is attached to the sliding door side and that adjusts dimensions in the vertical direction. It should be noted that the suspension shaft 20 is not separated during removal because the top surface 23 of the head portion 21 is prevented from being pulled out by the pivot shaft 17 in the assembled state. Further, since the top surface 23 of the hanging shaft 20 is formed in a flat conical shape, even if the swinging operation is performed when the sliding door 6 is supported to be suspended, it does not come into contact with the pivot shaft 17 and the swinging behavior is hindered. There is nothing.

  As shown in FIG. 4, the suspension wheel 11 and the suspension shaft 20 formed in this way are mounted in a box structure in which the suspension shaft 20 is embedded in the top 6a end of the sliding door. Inserted from the opening 31 provided in the upper part of the unit 30 (in which the sliding door height direction adjusting mechanism 33 is incorporated), the screw part 24 below the suspension shaft 20 is inserted into the gear of the sliding door height adjusting mechanism 33. It connects by screwing in the internal thread part of 33a. In addition, since the attachment unit 30 is attached to the top part 6a of the sliding door at both front and rear ends, the two suspended traveling devices 10 are disposed.

  As shown in FIGS. 1 and 4, the suspension support device 10 for the sliding door according to this embodiment attached to the sliding door 6 as described above is attached along the front member of the building entrance A1. A suspension wheel 11 is arranged on the guide grooves (guide surfaces) 3a and 3a of the guide rail 3 attached to the lower surface of the guide rail 3 via the mounting bracket 4 along the member 2. On the other hand, as shown in FIG. 5, the lower portion of the sliding door 6 is guided by a lower rail 7 provided on the floor 5, and mounting units 30 are embedded at both longitudinal ends of the top portion 6a. The lower end screw portion 24 of the suspension shaft 20 attached to the attachment unit 30 and the suspension wheel 11 via the connecting block 15 is screwed to the sliding door height direction adjusting mechanism 33 of the attachment unit 30 as described above. The vehicle is suspended by the suspension vehicle 11 via the suspension shaft 20 and can be guided along the guide rail 3.

  In this way, the sliding door that is suspended and supported via the suspension shaft 20 by the suspension vehicle 11 guided and supported by the guide rail 3 attached to the building side, for example, the guide surface 3a of the guide rails 3 and 3 on which the suspension vehicle 11 travels. When the upper support structure member 2 is attached to the building and is not in a horizontal state, as shown in FIGS. 5 (b) and 6 (a), the sliding door 6 arranged vertically by its own weight is used. There is a deviation between the axis C of the mounting unit 30 and the axis P of the guide rail 3 at the top 6a. However, the suspension shaft 20 that connects the suspension vehicle 11 and the mounting unit 30 has a hemispherical shape of the head portion 21 with respect to the receiving seat 16a of the suspension shaft support hole 16 of the connection block 15 incorporated in the suspension vehicle 11. Since the peripheral surface 22 is abutted and supported, the peripheral surface 22 freely slides on the receiving seat 16a on the connecting block 15 side while supporting the weight of the sliding door 6, and the posture of the sliding door 6 is changed. It can be moved vertically.

  Further, since the suspension wheel 11 is supported by the pivot shaft 17 at the center of the support piece 12 that supports the front and rear rollers 13 and 13 on the connecting block 15 located at the center thereof, the guide rail 3 is provided on the building side. For example, even if it is attached in a tilted state without maintaining a horizontal state in the longitudinal direction, the suspension shaft 20 suspended and supported by the connecting block 15 is suspended by the load of the sliding door 6 to guide rails. The three guided rollers 13 and 13 can normally be brought into contact with the guide groove 3a and run in a stable state.

  When the suspension wheel 11 travels, the relationship between the connection block 15 and the support piece 12 maintains the vertical force in the suspension load direction by the back and forth swinging with the pivot shaft 17 as a base point, and at the same time, the guide rail 3 Even if the guide grooves 3a and 3a on both sides are twisted in the width direction, the left and right support portions 12 and 12 constituting the suspension wheel 11 are independently pivoted at the center by the pivot shaft 17. Thus, both the left and right rollers 13 and 13 are separately added, so that the suspension wheel 11 can travel and the sliding door 6 can be moved smoothly. In addition, as described above, the suspension shaft 20 is supported on the head portion 21 so as to swing freely in the suspension support shaft hole 16 of the connecting block 15, so that the suspension shaft 20 is on a vertical line passing through the center of the suspension wheel 11. Even if the suspended sliding door is in a non-parallel posture with respect to the guide grooves 3a, 3a of the guide rail 3, an irregular load does not act on the suspended vehicle 11, and stable traveling can be realized. Of course, even if one of the four rollers 13 in the suspension wheel 11 is lifted from the guide groove 3a of the guide rail, as shown in FIG. Never come.

  In addition, the suspension wheel 11 can be configured to be compactly assembled in the height direction so that the suspension shaft 20 can be supported without protruding above the connection block 15, and as shown in FIG. 5. The guide rail 3 can be formed low in volume and attached to the upper support structure member 2. Therefore, even if the relationship between the guide rail 3 and the suspension vehicle 11 is made compact and the guide rail 3 attached to the building side is not parallel to the floor surface 5, the sliding door 6 maintains the verticality. Even if a gap θ (see FIG. 5B) due to an inclination occurs between the top surface of the guide rail 3 and the lower surface of the guide rail 3, it can be accommodated above the building opening A1. Even when closed, it is possible to avoid blowing air from the outside.

  Further, the suspension wheel 11 is formed to be bent so that both longitudinal end portions of the support portions 12 and 12 face each other inwardly, and is slightly longer than the outer diameter positions of the left and right rollers 13. Therefore, when the sliding door 6 is opened and closed, when it is traveled vigorously along the guide rail 3, a stopper 35 made of a rubber material is attached to the end of the guide rail 3 as shown in FIG. Then, the end portion 12c of the suspension wheel 11 that has traveled is brought into contact with the stopper 35 and is prevented from moving. Therefore, even when the sliding door 6 is closed quickly, the sliding door can be safely closed without the suspension wheel 11 being detached from the guide rail 3. Further, the suspension vehicle 11 can be protected without being damaged. Of course, it is preferable to attach the stopper 35 to both ends of the guide rail 3.

(Second Embodiment)
The sliding door suspension support device 10A of this embodiment is substantially the same as that of the above embodiment in the basic configuration, and a part of the configuration of the connecting block that pivotally connects the support pieces 12 and 12 at the center is different. To do. Therefore, the description will be given with emphasis on the different parts of the configuration. Note that the same or similar components as those in the first embodiment are denoted by the same reference numerals as those described above, and detailed description thereof is omitted.

  As shown in FIGS. 7 to 9, the sliding door suspension support device 10 </ b> A includes a connecting block 15 </ b> A that connects the central portions of the left and right support portion pieces 12 and 12 with a pivot shaft 17 and press-molds a metal plate. And a support member 19 (support piece) which is housed in the holder 18 and supports the suspension shaft 20 so that the head portion 21 can swing freely. The support member 19 (support piece), like the connection block 15 of the first embodiment, is provided with a suspension shaft support hole 16 in the vertical direction and is provided with a semispherical receiving seat 16a inside. ing. Further, the holder 18 is formed with a hole 18a through which a part of the support piece 19 is inserted in the bottom surface portion so as to obtain stability, and insertion holes 18c of the pivot shaft 17 are provided in both side surface portions 18b. ing. When the support piece 19 is fitted into the holder 18, the lower half portion 19a is fitted into the hole 18a at the bottom of the holder 18, and the outside is held by the side plate portions 18b and 18b and fixed in place. It has come to be. Of course, the insertion hole 19b of the pivot shaft 17 is aligned with that of the holder 18 so that the pivot shaft 17 passes therethrough.

  In the connecting block 15A configured as described above, as shown in FIG. 8, with a holder 18 whose outer portion is bent and formed with a metal plate in the same dimension as the connecting block 15 whose outer dimensions are integrally formed, For example, a metal molded product (metal powder injection molded product) may be used for the support piece 19 that maintains an external force acting on the pivot shaft 17 and a suspension support force acting on the support piece 19 and requires high structural accuracy. Alternatively, metal molded parts such as lost wax molded products are used. By doing so, it is possible to increase the accuracy and facilitate the manufacture, and to reduce the cost by making the main part where the load acts greatly sturdy.

  The connecting block 15A receives the head portion 21 of the suspension shaft 20 from the suspension shaft support hole 16 and hangs down, and then is arranged inside the support portion pieces 12 and 12 each having the roller 13 so as to be pivotally supported. The suspension wheel 11 is assembled by connecting together at 17. And the function as the suspension vehicle 11 incorporating the connection block 15A of such a structure can exhibit the function similar to the thing of the said 1st Embodiment.

DESCRIPTION OF SYMBOLS 2 Upper support structure member 3 Guide rail 3a Roller guide groove 6 Sliding door 6a Sliding door top part 10 Sliding door suspension support device 11 Suspension wheel 12 Supporting piece 13 Roller 15, 15A Connection block 16 Suspension shaft support hole 16a Receiving seat 17 Pivot Support shaft 18 Link block holder 19 Link block support member (support piece)
20 Hanging shaft 21 Head part 22 Peripheral surface of head part 30 Mounting unit

Claims (5)

A suspension shaft that is suspended from the center of a suspension vehicle that can run along a guide rail provided at the top of the building's sliding door installation site. It is connected to an attachment unit that is attached to the top of the sliding door body. A sliding door hanging traveling device for traveling a sliding door,
A suspension shaft connected to the mounting unit on the sliding door side, a connection block for supporting the head portion of the suspension shaft,
A pair of left and right support parts each having two rollers arranged at the front and rear at a required interval, and a suspension wheel formed so as to be pivotally supported on both sides of the connecting block at a central position;
Consists of
The lower end of the suspension shaft, which is attached to the top of the sliding door body and is connected to be adjustable up and down by an adjustment mechanism, has an upper portion that is connected and supported so as to be swingable back and forth and right and left inside the connection block. Sliding door hanging traveling device characterized by the above.   2. The suspension shaft according to claim 1, wherein the peripheral surface of the upper end head portion is formed in a hemispherical shape and connected to the shaft portion, and the end surface of the head portion is formed in a flat cone shape having a wide angle centered on the axis. The sliding door hanging traveling device described.   The connection block is provided with a suspension shaft support hole penetrating in the vertical direction at the center thereof, and a hemispherical seat that receives the circumferential surface of the head portion of the suspension shaft at the inner and lower portions of the suspension shaft support hole. The sliding traveling device for a sliding door according to claim 1, wherein a pivot shaft pin hole is provided penetrating laterally perpendicular to the axis of the suspension shaft support hole.   4. The sliding door suspension according to claim 1 or 3, wherein the connecting block is formed as an integral structure so as to form a guide surface for maintaining parallelism of the roller support pieces whose both side surfaces are pivotally supported on both sides. Lowering travel device.   The connection block includes a plate-bending structure frame having a function of guiding and maintaining the parallelism of the roller support pieces, and a hemispherical seat in the suspension shaft support hole. 4. The structure according to claim 1 or 3, comprising a suspension shaft holding portion piece that is fitted and held in the shaft, and having a pivot shaft pin hole that penetrates both the frame and the suspension shaft holding portion piece. Sliding door hanging traveling device.

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