JP3206902B2 - Door roller device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a door car device,
For example, when a door provided with a door roller, such as a sliding door, is stopped, a sufficient braking force is applied to hold the stop position, and when the vehicle is running, the braking force in the stopped state is almost eliminated, so that the vehicle runs smoothly. This is related to the technology to be performed.

[0002]

2. Description of the Related Art Conventionally, a door having a door roller, such as a sliding door, has a difficulty in maintaining a stop position when it is possible to run lightly with low rotational resistance. When a collision occurs, the door body moves backward due to the reaction, and a gap is formed between the door and the vertical frame.

[0003] Therefore, by giving a rotating resistance to the door wheel,
It is conceivable to stop the door body reliably at the stop position of the door body and to prevent the door body from moving backward by the recoil even if the door body collides with the vertical frame. By the way, like this
In the case where rotational resistance is given to the door wheel to such an extent that the position of the door body does not move at the stop position, traveling of the door body during normal opening and closing becomes heavy.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem.
Provided is a door pulley device capable of applying a sufficient braking force in a stopped state of a door body such as a sliding door to hold a stop position, and also running smoothly with almost no braking force in a stopped state during traveling. That is the task.

[0005]

According to the first aspect of the present invention, a door wheel 2 rotatably attached to a lower end of a door body 1 is provided at a position where a rotational braking force is applied to the door wheel 2 when traveling by the door wheel 2 is stopped. It is characterized in that it has a brake element 3 that moves and retracts to a position where the rotational braking force at the time of stoppage is released when traveling by the door roller 2. According to such a configuration, when the door body 1 at which the rotation of the door roller 2 stops is stopped, the brake element 3 is moved to a position for applying a rotational braking force to the door roller 2 to apply a sufficient rotational braking force. When the door body 1 on which the door wheel 2 rotates is running, the brake element 3 moves to the position where the rotational braking force at the time of stop is released. Relative braking force is released to allow smooth running.

According to a second aspect of the present invention, the brake element 3 is pivotally supported by a pivot 5 substantially parallel to the rotating shaft 4 of the door wheel 2 and slidably contacts the distal end of the brake element 3 with the outer periphery of the door wheel 2. A sliding contact braking unit 6 that applies a braking force to the door wheel 2 in a direction perpendicular to the tangential direction of the sliding door 2 with respect to the sliding door 2 that stops the sliding contact braking unit 6 by returning the brake element 3 to the swinging neutral position. Spring means 1 for contacting
0 is provided. According to such a configuration, when the door body 1 at which the rotation of the door roller 2 stops is stopped, the brake 3 is urged to the swinging neutral position by the spring means 10 and the sliding contact braking portion 6 is turned on. It provides a sufficient rotational braking force to the door wheel 2 by elastically contacting in a direction perpendicular to the tangential direction. Also, when the door body 1 on which the door wheel 2 rotates is running, the brake element 3 swings and the rotation control when stopping is performed. The structure for releasing the power and for maintaining the stop position of the door body 1 sufficiently and performing smooth running with little rotation braking force is provided by holding the brake element 3 swingably. In addition, a simple configuration in which the spring means 10 for returning to the swinging neutral position is provided.

According to a third aspect of the present invention, the brake element 3 is rotatably supported by a pivot 5 substantially parallel to the rotation shaft 4 of the door wheel 2, and slides in contact with the outer end of the door wheel 2 at the tip end of the brake element 3. A sliding contact braking portion 6 for applying a braking force to the pivot shaft 5, a flat repose surface 7 is formed on the opposite side of the pivot 5 from the sliding contact braking portion 6, and the braking element 3 is rotated in contact with the repose surface 7. The spring is biased to the neutral position and the sliding contact
Is provided with a spring plate 9 for elastically contacting the door wheel 2 in a direction perpendicular to the tangential direction of the door wheel 2 to the stopped door wheel 2. According to such a configuration, the door wheel 2
When the rotation of the door 1 stops, the leaf spring 9
Is stably abutted against the resting surface 7, the brake element 3 is urged to the rotation neutral position, and the sliding contact braking section 6 is elastically contacted in a direction orthogonal to the tangential direction of the door wheel 2, so that the door wheel 2 has sufficient contact. When the door body 1 in which the door wheel 2 rotates is rotated, the brake element 3 is driven to rotate and retreat.
The configuration for releasing the rotational braking force at the time of stoppage, and for maintaining the stop position of the door body 1 sufficiently and performing smooth running with little rotational braking force applied, is to rotate the brake element 3. A simple configuration in which a leaf spring 9 that movably holds and returns to the rotation neutral position may be provided.

According to a fourth aspect of the present invention, a sliding contact braking portion for applying a braking force by slidingly contacting the distal end portion of the braking element with the outer peripheral portion of the door roller.
Is formed in the fixed case 11, and an arc hole 12 is formed in the opposite direction to the outer peripheral circle of the door wheel 2, and the brake 3 is moved and rotated to the arc hole 12 by a pivot 5 substantially parallel to the rotation axis 4 of the door wheel 2. The door pulley 2 is freely pivoted, and elastically contacts the opposite ends of the door 3 in the moving direction of the brake child 3 to spring-bias the brake child 3 to the moving neutral position to stop the sliding contact braking portion 6. It is characterized in that a pair of coil springs 13 are provided for elastic contact in a direction orthogonal to the tangential direction. According to such a configuration, when the door body 1 stops when the rotation of the door roller 2 stops, the pair of coil springs 13 abut on both ends of the brake element 3 to move the brake element 3 to the neutral position. And the sliding contact braking portion 6 is elastically contacted in a direction orthogonal to the tangential direction of the door wheel 2 to apply a sufficient rotational braking force to the door wheel 2. Child 3
Is moved along the arc hole 12 opposite to the outer peripheral circle of the door wheel 2 to retract, and the rotational braking force at the time of stop is released. In particular, the brake element 3 is moved and rotated. By forming the arc hole 12 to be formed in a direction opposite to the outer peripheral circle of the door wheel 2, the brake 3 can be effectively retracted from the door wheel 2, and the sliding contact resistance during traveling can be further reduced to zero. Can be approached.

[0009]

Embodiments of the present invention will be described below. 1A, 1B, and 1C are front views showing the operation, FIG. 2 is an overall perspective view, FIG. 3A is a partially broken front view, FIG. 1B is a bottom view, and FIG. 5A is a left side view, FIG. 5B is a right side view, FIG. 5A is a front view of a fixed case, FIG.
6C is a side view, FIG. 6C is a plan view, FIG. 6A is a front view of the outer case, and FIG. 6B is a bottom view.

The door roller device according to the present invention is mounted on the lower surface of both ends of a door body 1 serving as a sliding door, for traveling on a traveling rail 34. When the traveling by the door roller 2 is stopped, the door roller 2 is attached to the door roller 2. Move to the position where the rotational braking force is applied, and
When the vehicle travels, a braking element 3 is provided which releases the rotational braking force at the time of stop and retracts to a position where a slight rotational braking force is applied. The details will be described below.

As shown in FIGS. 3 and 6, an outer case 15 made of synthetic resin having an open lower end is fitted into a recess 18 formed at a lower portion of the side end of the door 1, and is fixed by a fixing bolt 19. Fixed. As shown in FIG. 5, a metal fixed case 11 having a substantially U-shaped cross section is inserted into the inside of the outer case 15, and is mounted to be swingable around a shaft 20.

A door wheel 2 is attached to the fixed case 11 so as to be rotatable about a rotary shaft 4. A long hole 21 is formed in the front and rear walls of the outer case 11 in the horizontal direction.
The cylindrical round nut 22 is inserted so as to traverse the hole so that the round nut 22 can move along the elongated hole 21. A notch 23 whose upper part is open is formed on the front and rear walls of the upper part of the fixed case 11, and the notch 23 is inserted into the round nut 22. A rotation operation rod 25 is inserted into an operation hole 24 formed in the outer case 15 and is rotatably held by a bearing 26. The rotary operation rod 25 is threaded and screwed to the round nut 22.

The rotation of the rotary operation rod 25 causes the round nut 22 to move along the elongated hole 21, and the movement of the round nut 22 causes the fixed case 11 to move the shaft 2.
By rotating the door roller 2 around 0 and moving the door roller 2 held in the fixed case 11 in the vertical direction, the amount of protrusion of the door roller 2 from the door body 1 can be adjusted.

FIG. 8 shows the sliding contact braking portion 6, which is made of polyurethane and serves as a brake pad. As shown in FIG. 10, the braking element 3 is configured by holding the sliding contact braking portion 6 in a U-shaped holding frame 27. A flat resting surface 7 is formed on the outer surface of the base end of the holding frame 27. The holding frame 27 is held as a common axis with the axis 20 as the pivot 5, and the brake
It is swingably held around zero. A concave groove 28 is formed in the sliding braking portion 6 so as to engage with the outer peripheral ridge 29 of the door roller 2. The leaf spring 9 is attached to the outer case 15.

When the leaf spring 9 abuts stably on the resting surface 7 of the holding frame 27, the brake element 3 is spring-biased to the rotation neutral position as shown in FIG. Yes,
The sliding contact braking unit 6 is elastically contacted with the stopped door wheel 2 in a direction perpendicular to the tangential direction of the door wheel 2 to apply sufficient rotation braking force to the door wheel 2, thereby braking the rotation of the door wheel 2. Thus, the stop position of the door body 1 is maintained.

Here, when the door body 1 is run, the brake 3 is driven by the door wheel 2 and turns around the shaft 20. In such a turning position, FIG. b) or (c), the leaf spring 9 resiliently contacts the spring pressing portion 8 at the corner of the end of the holding frame 27 in the rotating direction to urge the brake element 3 to the rotating neutral position. However, the sliding contact braking unit 6 is in contact with the door wheel 2 only on a small contact surface, and gives a sufficiently small rotational braking force as compared with the time of stop.
The running of the door body 1 can be performed with relatively light resistance.

As described above, the structure for firmly holding the stop position of the door body 1 and performing smooth running with a slight rotational braking force applied thereto is to hold the brake element 3 rotatably and A simple configuration in which a leaf spring 9 that returns to the rotation neutral position is provided may be used.

FIGS. 14 to 20 show another embodiment. However, the basic structure of this embodiment is the same as that of the above embodiment, and the same reference numerals are given to the common parts. The description is omitted.

FIG. 19 shows the sliding contact braking portion 6, which is made of polyurethane and serves as a brake pad. FIG. 20 shows an inner frame 17, which is made of metal and has a U-shaped cross section, and accommodates and holds the sliding contact braking portion 6 so that it does not come off in the thickness direction and the rotation direction of the door roller 2 to constitute the braking element 3. ing. Inner frame 1
The outer peripheral surface of 7 is formed in an arc shape, the protruding piece 30 stands on the outer peripheral surface, and the elongated hole 35 is formed on the side wall.

FIG. 18 shows the outer frame 16, which is formed in a substantially U-shape and has projecting pieces 32 at four places.
2 is inserted into the holding hole 33 of the fixed case 11 and the outer frame 16 is
Is attached to the fixed case 11. The outer frame 16 is formed in an arc shape so that the inner frame 17 is held inside the outer frame 16 so as to be able to slide and move in the rotation direction of the door roller 2. A long hole 31 is formed in the outer frame 16, and the protruding piece 30 of the inner frame 17 is inserted into the long hole 31 so that the sliding movement of the inner frame 17 can be guided. The pivot 5 is held in the notch 36 of the sliding contact braking portion 6, and the pivot 5 is
Has been inserted.

An arc hole 12 is formed in the front and rear walls of the fixed case 11 so as to be bent in a direction opposite to the outer circumference of the door wheel 2. The pivot 5 is projected from the inner frame 17 so that the pivot 5 is inserted into the arc hole 12.
, And holds the brake element 3 so as to move along an arc hole 12 bent in a direction opposite to the outer circumferential circle of the door roller 2. Between the outer frame 16 and the inner frame 17, coil springs 13, 13 are interposed at both ends in the rotation direction of the door roller 2 to urge the brake element 3 to return to the neutral position in the outer frame 16. keeping.

Thus, as shown in FIG. 14 (a), when the door body 1 is stopped when the rotation of the door wheel 2 is stopped, the pair of coil springs 13, 13 contact the both ends of the brake element 3. As a result, the pivot 5 of the brake element 3 is urged to the neutral position for movement, and the sliding contact braking portion 6 elastically contacts the direction perpendicular to the tangential direction of the door wheel 2 to apply a sufficient rotational braking force to the door wheel 2. Also, as shown in FIGS. 2B and 2C, when the door body 1 is running, the brake element 3 is driven and the pivot 5 is bent in a direction opposite to the outer circumferential circle of the door wheel 2. Arc hole 1
2 and retreats, and applies a sufficiently small rotational braking force as compared to when the vehicle is stopped. In particular, the arc hole 12 for moving and rotating the brake 3 is formed in a direction opposite to the outer circumference of the door wheel 2. By bending in the direction, the braking element 3 can be effectively retracted from the door wheel 2, and the sliding contact resistance during traveling can be further reduced.

In the embodiment, the rotational braking force at the time of stopping is released during traveling to apply a braking force sufficiently smaller than the rotational braking force at the time of stopping. The power may be set to zero.

[0024]

According to the first aspect of the present invention, the door stroller rotatably attached to the lower end of the door body is moved to a position for applying a rotational braking force to the door stroller when traveling by the door stall is stopped, and stopped when traveling by the door stroller. When the door body stops rotating when the door stops rotating, the brake element moves to the position that applies the rotational braking force to the door roller. To provide a powerful rotational braking force.
When the door rotates, the braking element moves to release the rotational braking force when the door stops, and the stop position of the door is sufficiently maintained, and the rotational braking force is hardly applied. There is an advantage that smooth running can be performed.

According to a second aspect of the present invention, the brake is pivotally supported by a pivot substantially parallel to the rotation axis of the door wheel, and the braking member is brought into sliding contact with the outer peripheral portion of the door wheel to apply a braking force. The contact braking section is provided, and the spring means is provided to return the brake element to the swinging neutral position and abut the sliding door stopping the sliding contact braking section in a direction orthogonal to the tangential direction of the door roller. In addition, in addition to the effect of claim 1, when the door body stops rotating when the rotation of the door roller stops, the brake element is urged to the swing neutral position by the spring means, and the sliding contact braking portion is in the tangential direction of the door roller. It provides a sufficient rotational braking force to the door roller by elastically contacting it in the orthogonal direction, and the brake element swings when the door body rotates and the rotational braking force at the time of stop is released. ,
The structure for holding the stop position of the door body sufficiently and releasing the rotational braking force at the time of stop to perform smooth running is to hold the brake element swingably and return to the swing neutral position. There is an advantage that a simple configuration in which spring means is provided is sufficient.

According to a third aspect of the present invention, the brake is rotatably supported by a pivot substantially parallel to the rotation axis of the door wheel, and a braking force is applied by slidingly contacting the distal end of the brake element with the outer periphery of the door wheel. A contact braking part is provided, a flat repose surface is formed on the opposite side to the sliding contact braking part with respect to the pivot, and the braking element is brought into contact with the repose surface and spring-biased the brake element to the rotation neutral position to provide a sliding contact braking part. Since the spring plate is provided so as to elastically contact the door roller that is stopped in a direction orthogonal to the tangential direction of the door roller, in addition to the effect of claim 1, when the door body stops rotating the door roller. In the above, the plate spring is stably abutted against the resting surface, so that the brake is urged to the rotation neutral position, and the sliding contact braking portion is elastically contacted in a direction orthogonal to the tangential direction of the door wheel, and sufficient for the door wheel It applies a rotational braking force, and when the door is running, the brake is driven to rotate and retreat. There is a configuration for releasing the rotational braking force at the time of stoppage, and for maintaining the stop position of the door body sufficiently and performing smooth running with little rotational braking force applied. There is an advantage that a simple configuration in which a leaf spring that movably holds and returns to the rotation neutral position is provided may be used.

According to a fourth aspect of the present invention, a sliding contact braking portion for applying a braking force by slidingly contacting the outer peripheral portion of the door wheel is provided at the tip of the brake element, and an arc hole opposite to the outer peripheral circle of the door wheel is formed in the fixed case. The brake is moved to a circular arc hole about a pivot substantially parallel to the rotation axis of the door wheel and pivotably supported, and elastically comes into contact with both ends in the movement direction of the brake to bring the brake into a neutral position. Since a pair of coil springs are provided to resiliently contact the door stroller that is urged to stop the sliding contact braking unit in a direction orthogonal to the tangential direction of the door stroller, in addition to the effect of claim 1, When the door stops rotating, the pair of coil springs abut against both ends of the brake to urge the brake to the neutral position, and the sliding brake is perpendicular to the tangential direction of the door. To provide sufficient rotational braking force to the door wheel. During travel of the rotating door body, the braking element follows and moves along the arc hole opposite to the outer peripheral circle of the door wheel and retreats, releasing the rotational braking force at the time of stopping, especially By forming the arc hole for moving and rotating the brake element in a direction opposite to the outer circumference of the door wheel, the brake element can be effectively retracted from the door wheel, and the sliding contact resistance during traveling can be further reduced. There is an advantage that it can approach zero.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a door roller device of the present invention,
(A) (b) (c) is a front view which shows operation | movement.

FIG. 2 is an overall perspective view of the same.

3A is a partially cutaway front view, and FIG. 3B is a bottom view.

4A is a left side view, and FIG. 4B is a right side view.

5A and 5B show the same fixed case, wherein FIG.
(B) is a side view, and (c) is a plan view.

FIG. 6 shows an outer case of the above, wherein (a) is a front view,
(B) is a bottom view.

FIG. 7A is a right side view, and FIG.
A sectional view along line A, (c) is a left side view.

FIGS. 8A and 8B show a sliding contact braking portion of the above slider, wherein FIG. 8A is a front view and FIG. 8B is a side view.

9A and 9B show the same leaf spring, wherein FIG. 9A is a front view and FIG.
Is a side view.

10A and 10B show an outer frame of the brake element of the above, wherein FIG. 10A is a front view and FIG. 10B is a side view.

11A and 11B show the above door car, FIG. 11A is a front view, and FIG.
Is a partially broken plan view.

FIG. 12 shows the same round nut, (a) is a front view,
(B) is a side view.

FIG. 13 shows a rotary operation stick of the above, (a) is a front view,
(B) is a side view.

FIGS. 14A and 14B show another embodiment of the present invention, wherein FIGS.
(C) is a front view showing an operation.

15A is a partially cutaway front view, and FIG. 15B is a bottom view.

16A is a left side view, and FIG. 16B is a right side view.

FIG. 17 shows a fixed case according to the third embodiment, (a) is a front view,
(B) is a partially enlarged front view.

FIGS. 18A and 18B show an outer frame of the brake element, wherein FIG. 18A is a front view, FIG. 18B is a side view, and FIG.

19 (a) is a front view, FIG. 19 (b) is a side view, and FIG. 19 (c) is a bottom view.

FIG. 20 shows an inner frame of the brake element, in which (a) is a front view, (b) is a bottom view, and (c) is a side view.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 door body 2 door roller 3 brake 4 rotational axis 5 pivot 6 sliding contact braking section 7 rest surface 8 spring pressing section 9 leaf spring 10 spring means 11 fixed case 12 arc hole 13 coil spring

Continuation of the front page (56) References JP-A-9-53360 (JP, A) JP-A-8-165840 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05D 15 / 06

Claims (4)

(57) [Claims] A door wheel rotatably attached to a lower end of a door body is moved to a position for applying a rotational braking force to the door wheel when traveling by the door wheel is stopped, and a rotational braking force at the time of stopping is traveled when traveling by the door wheel. A door pulley device comprising a brake element that retreats to a position to be released. 2. A sliding contact braking portion for pivotally supporting a brake element on a pivot substantially parallel to a rotation axis of a door wheel, and for providing a braking force to a tip end of the brake element by slidingly contacting an outer peripheral portion of the door wheel. And a spring means for returning the brake element to the swinging neutral position and abutting the sliding door stopping part in a direction orthogonal to the tangential direction of the door roller to the door roller stopping. The door roller device according to claim 1. 3. A sliding contact braking portion for pivotally supporting a brake element on a pivot substantially parallel to the rotation axis of the door wheel, and for providing a braking force at the tip of the brake element by slidingly contacting the outer periphery of the door wheel. A flat repose surface is formed on the opposite side to the sliding contact braking portion with respect to the pivot, and the sliding contact braking portion is stopped by abutting against the relieving surface and urging the brake element to the rotation neutral position with a spring. 2. A spring plate for elastically contacting an existing door wheel in a direction perpendicular to a tangential direction of the door wheel.
The door roller device as described. 4. A brake contact element for providing a braking force by slidingly contacting an outer peripheral portion of a door roller at a distal end portion of the brake element, and forming a circular arc hole in a fixed case in a direction opposite to an outer peripheral circle of the door roller. Is pivoted about a pivot axis substantially parallel to the rotation axis of the door roller and is pivotally supported so as to be freely rotatable, and elastically comes into contact with both ends in the moving direction of the brake to spring-bias the brake to a neutral position. The door unit according to claim 1, further comprising a pair of coil springs that elastically contact the door unit that stops the contact braking unit in a direction orthogonal to a tangential direction of the door unit.