JP5188375B2 - Sliding door device - Google Patents

Description

  The present invention relates to a sliding door device including a braking device that reduces the closing speed of the sliding door.

  As the sliding door device, a self-closing type in which the sliding door is automatically closed is already known. In this type of sliding door device, a closing force generating means is provided between the sliding door and a member (sliding door frame) fixed at a predetermined position, and the opened sliding door is automatically operated by the urging force of the closing force generating means. The door is configured to be closed. As the closing force generating means, the mainspring spring, coil spring, and the weight of the weight that pulls the sliding door in the closing direction, and the wheel provided on the sliding door are tilted slightly downward on the closing direction side. It is known that it is mounted on a rail so as to be able to roll and is automatically closed by its own weight.

  In such a sliding door device, when the sliding door is closed, in order not to damage the sliding door or the member of the closed portion or to make noise due to the impact strongly contacted with the member such as the frame of the sliding door frame, A braking device is provided. Such a braking device is fixed to the sliding door frame side so as to mesh with the pinion gear externally fitted to the input shaft of the braking means fixed to the sliding door side and apply a predetermined torque to the pinion gear. With a rack.

According to this sliding door device, since the pinion gear meshes with the rack before the sliding door is completely closed and the input shaft is rotated while being braked, the sliding door closing operation is braked. Therefore, it is possible to prevent the sliding door or the member at the door closing portion from being damaged or causing noise. (See Patent Document 1 below)
JP 2002-54348 A

  However, when the technique described in Patent Document 1 is used for a heavy sliding door (heavy sliding door) attached to a hospital, office, library, elderly house, warehouse, etc., once the sliding door starts to close, the closing force In addition to the closing force generated by the generating means, the closing speed increases due to inertia (inertia) due to the weight of the door, and when the door is fully closed, the impact of the door frame, such as the frame of the door frame, causes the door to close. There is a problem that damage or noise is generated, which is insufficient for braking the weight sliding door.

  Therefore, the present invention provides a braking system that does not damage a sliding door or a member at a closed portion or cause noise due to an impact that strongly contacts a member such as a frame of the door frame when the door is closed even when the door is closed. An object of the present invention is to provide a sliding door device including the device.

The present invention provides a sliding door that is movably provided to open and close the sliding door frame, a closing force generating means for moving the sliding door in the closing direction, and brakes the sliding door before the sliding door is fully closed. in the sliding door device provided with a braking device for, the braking device is provided above the the cited door Rutotomoni a rack whose length is configured longer than the lateral width of the cited door, of the cited door with respectively provided door leading side and the door trailing end side and a braking means having a meshing pinion gears to the rack, pinion gear braking means door end side in the fully open door state of the cited door is and the rack and meshed, perform braking means braking該戸destination side in the case of the cited door is closed from the fully open door state, pin Niongia is the rack door trailing side of the brake means when the cited door is near full closing state 該戸destination side of the braking means and the I and meshing Both braking means trailing is mainly characterized in that the braking.

Wherein as the braking device of the sliding door of the present invention, Rutotomoni provided above the the cited door, a rack whose length is configured longer than the lateral width of the cited door, and door end side of the cited door with respectively provided door trailing end side and a braking means having a meshing pinion gears to the rack, pinion gear braking means door end side is Tsu said rack meshing in the fully open door state of the cited door performs braking means braking該戸destination side in the case of the cited door is closed from the fully open door state, peak Niongia the door trailing side of the brake means when the cited door is near full closing state I the rack meshing since both of the braking means and該戸buttocks side of the braking means of該戸destination side performs the braking, it is possible to slow down the closing beginning of the speed of the sliding door can be secured afford to pass through a person. In addition, even a heavy sliding door can be sufficiently braked, and the sliding door and the member at the closed portion are not damaged and noise is not generated.

  In the sliding door device of the present invention, even if the sliding door is a heavy sliding door, it is possible to perform sufficient braking, and there is an advantage that the sliding door, the member at the closing position, and the like are not damaged and noise is not generated.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1 to FIG. 5, reference numeral 1 denotes a sliding door that is suspended from a sliding door frame 2 so as to be movable in the left-right direction. In the present embodiment, a sliding door for right opening is illustrated, but it goes without saying that it may be a sliding door for left opening. The sliding door frame 2 is formed by connecting the upper end of the closing side frame 3 and the opening side frame 4 of the sliding door 1 with an upper horizontal frame 5. In the side of the sliding side door 4 of the opening side frame 4 in the figure, two cushioning materials 4a for reducing the impact when the sliding edge 1 collides with the side frame 4 when the sliding door 1 is fully opened. Is provided.

  A door end side bracket 6a and a closed butt side bracket 6b are extended upward at almost both ends at the upper edge of the sliding door 1, and two door wheels 7 are rotatable on the two brackets 6a and 6b, respectively. Is pivotally supported.

  A frame 15 having a substantially L-shaped cross section is fixed horizontally to the upper horizontal frame 5 over almost the entire width in the left-right direction, and the door wheel 7 rolls on a rail portion 16 formed on the frame 15. The sliding door 1 is opened and closed as the door 7 rolls on the rail portion 16 and is freely mounted.

  As shown in FIGS. 1 and 4, a door driving device 21 corresponding to the closing force generating means of the present invention is fixed to the door end side end of the rail portion 16. The door closing drive device 21 includes a mainspring spring (not shown) in the main body 18 and a drive wire 19 wound around the outer periphery of a drum 20 rotated by the mainspring spring. And the front-end | tip of this drive wire 19 is connected with the said door-end side bracket 6a, and the sliding door 1 is always urged | biased by the spring force of a mainspring spring in the closing direction. Accordingly, when the sliding door 1 is opened by human power and then released, the sliding door 1 is pulled by the drive wire 19 by the spring force of the mainspring spring, and is automatically closed. As shown in FIG. 4, although not shown in FIG. 1, the front surface of the upper horizontal frame 5 including the door closing drive device 21 and the like is covered with an inspection cover 22.

  On the frame 15, as shown in FIGS. 1 and 5, in a fully closed state of the sliding door 1, a rack 17 is provided at a position facing the upper edge of the sliding door 1 along the opening / closing direction of the sliding door 1. It is provided in parallel with the section 16. The rack 17 is configured by connecting three racks 17a, 17b, and 17c having a predetermined length to form a single continuous rack. The length is configured to be longer than substantially half of the width in the left-right direction of the sliding door 1. The rack 17 may be a single piece that is seamless, or a plurality of racks having a predetermined length may be connected to form a single continuous piece.

  One braking means 8 having the same structure is provided on each of the door end side of the door end side bracket 12a and the door end side of the door end side bracket 12b. These two braking means 8 give a braking force (rotational resistance) to the input shaft 10 supported so as to be freely rotatable forward and backward, and the structure thereof is arbitrary as long as such a braking function can be exhibited. For example, in this embodiment, a hydraulic damper provided with a trochoid pump is employed. Further, the braking means 8 of the present embodiment is provided with a throttle valve 8a for adjusting the braking force, and the braking force can be adjusted to an arbitrary value by adjusting the throttle valve 8a. Therefore, it is also possible to set the braking force of the braking means 8 on the door end side and the door bottom side to different values.

  A pinion gear 9 is attached to each input shaft 10 supported by each braking means 8. Both of these two pinion gears 9 mesh with the same rack 17 provided on the frame 15. A one-way clutch (not shown) is mounted between the input shaft 10 and the pinion gear 9. In the one-way clutch, when the pinion gear 9 rotates forward in the closing direction of the sliding door 1, the pinion gear 9 rotates the input shaft 10 to transmit torque, and conversely, when the pinion gear 9 rotates in the reverse direction in the door opening direction. Is attached in such a direction that the pinion gear 9 is idled and the torque transmission of the input shaft 10 is cut off. That is, the braking device 11 of the present embodiment includes two braking means 8 each having a pinion gear 9 and a rack 17 in which both the two pinion gears 9 are engaged when the sliding door 1 is closed to a substantially intermediate region. ing.

  As shown in FIGS. 2 and 3, the length of the rack 17 according to the present embodiment is such that when the sliding door 1 is closed to a substantially middle region of the opening, it meshes with the pinion gears 9 of the two braking means 8. On the contrary, when the sliding door 1 is in the fully opened state, the length is set so as to mesh with only the braking means 8 on the door end side of the two braking means 8.

  Since the sliding door device of the first embodiment of the present invention is configured as described above, when the sliding door 1 is about to be closed in the closing direction from the fully open state shown in FIG. Since the pinion gear 9 of the braking means 8 on the door end side meshes with the rack 17 in both the fully closed state and the fully open state, the sliding door 1 is braked by the braking means 8 on the door end side. For this reason, in a hospital or a house for the elderly, the speed at which the sliding door 1 starts to be closed can be slowed, and a room for people to pass through can be secured. Further, when the sliding door 1 is closed and comes to a substantially middle region, the pinion gear 9 of the door-side braking means 8 starts to mesh with the door-side end of the same rack 17 as shown in FIG. From this state, braking by the braking means 8 on both the door end side and the door bottom side starts to be applied. Thereafter, braking by the two braking means 8 is applied until the fully closed state shown in FIG. 1 is reached. For this reason, the heavy sliding door 1 is sufficiently braked even if the closing speed increases due to the inertia (inertia) due to the weight of the sliding door 1 itself in addition to the closing speed by the closing door driving device 21. The member 2 is not damaged or no noise is generated.

  Next, a second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same member and the description is abbreviate | omitted.

  As shown in FIG. 6, three racks 170a, 170b and 170c having a predetermined length are connected to each other, and the length of the rack 170 configured as one continuous is such that the sliding door 1 is close to a fully closed state. When the sliding door 1 is fully opened, the length is set so that both of the pinion gears 9 of the two braking means 8 are not engaged with each other.

  Since the sliding door device of the second embodiment of the present invention is configured as described above, when the sliding door 1 is to be closed in the closing direction from the fully open state shown in FIG. Since neither of the two braking means 8 meshes with the pinion gear 9 of the braking means 8, no braking is applied until the pinion gear 9 of the braking means 8 on the door bottom side meshes with the rack 170, and the door closing drive device 21 closes quickly. Therefore, it is effective when it is desired to close the sliding door 1 quickly such as in an office or a warehouse.

Further, in the present invention, the “near fully closed state” of the sliding door 1 where the pinion gears 9 of the plurality of braking means 8 mesh with the same racks 17 and 170 means that the sliding door 1 is substantially in the middle as shown in FIG. It is in a state of being closed from the area to about 30 cm before the closed side frame 3.
For example, in the second embodiment, the pinion gears 9 of the plurality of braking means 8 are engaged with the same rack 170 in a state in which the sliding door 1 is closed about 30 cm before the closed side frame 3. For this purpose, the door bottom brake means 8 is brought closer to the door tip brake means 8 and the rack 170 is made shorter.

In addition, as a structure of the braking device that exerts a large braking force near the fully closed state of the sliding door 1, the upper horizontal frame 5 is provided with racks in two rows in the vertical direction in the figure or in the entrance / exit direction (direction perpendicular to the drawing). It is also possible to engage the pinion gear 9 of the braking means 8 with this rack, but with this configuration, the vertical width of the upper horizontal frame 5 is increased, or the braking device itself is increased in the vertical direction or in / out direction. There's a problem.
However, in the present invention, since the pinion gears 9 of the two braking devices 8 are meshed with the same racks 17 and 170 near the fully closed state of the sliding door 1 and a large braking force is applied, the upper and lower sides of the upper horizontal frame 5 are There is no need to increase the width in the direction, and there is an advantage that the braking device 11 is compact in the vertical direction or in / out direction. Therefore, the whole sliding door device becomes compact in the up-down direction or in / out direction.

  In addition, the present invention is not limited to the above-described embodiment, and depending on the purpose of use of the sliding door, a door-opening braking device that activates the braking device when the sliding door becomes nearly fully open may be provided. It is also possible to provide a delayed action function that closes at a low speed for a predetermined distance at the beginning of closing.

  Further, the closing force generating means is not limited to the above-described one, and a rail that pulls the sliding door in the closing direction due to the weight of the weight, or a rail in which the door provided on the sliding door is inclined slightly downward in the closing direction side. It is possible to adopt one that is mounted so as to be able to roll on and is automatically closed by its own weight.

It is a front view which shows the fully closed state of the sliding door apparatus in 1st embodiment. It is a side view which shows the state closed to the intermediate region of the sliding door apparatus in 1st embodiment. It is a front view which shows the fully open state of the sliding door apparatus in 1st embodiment. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a front view which shows the fully open state of the sliding door apparatus in 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door 2 Sliding door frame 8 Braking means 9 Pinion gear 11 Braking device 17 Rack 21 Closed door drive device

Claims (1)

A sliding door that is movably provided to open and close the sliding door frame, a closing force generating means for moving the sliding door in the closing direction, and a brake for braking the sliding door before the sliding door is fully closed In the sliding door device provided with the device,
The braking device
The cited doors provided above Rutotomoni a rack whose length is configured longer than the lateral width of the cited door,
It is provided on the door end side and door bottom side of the sliding door, and comprises braking means having a pinion gear meshing with the rack,
When the sliding door is in the fully open state, the pinion gear of the braking means on the door end side meshes with the rack, and when the sliding door is closed from the fully open door state, the braking means on the door tip side performs braking, sliding door both braking means of the braking means and該戸trailing edge of該戸destination side pinion gear I said rack meshing of the braking means of the door trailing end side becomes near full closing state, characterized in that the braking Sliding door device.

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