JP5797491B2 - Mainspring drive unit and sliding door - Google Patents

Description

  The present invention relates to a mainspring drive unit and a sliding door including the mainspring drive unit.

In the opening and closing of sliding doors, a spring driving unit is known in which a door is moved in the same direction in the middle after moving the door to either the opening side or the closing side.
As a spring driving unit of this type, in Patent Document 1, one end of a spring is fixed, the other end is locked to a driven gear, and the driven gear is engaged with a winding gear and a traveling rack. The structure which meshes | engages with the traveling gear to match is disclosed. In the technique of Patent Document 1, when the sliding door is manually operated halfway in the opening and closing direction, the winding gear meshes with the winding rack to wind up the mainspring, and then the winding gear and the winding rack The travel gear meshes with the travel rack and the driven gear is rotated by releasing the wound spring, and the travel gear meshed with the driven gear is rotated in the same direction as the take-up gear. The sliding door is allowed to self-run from the middle of the moving operation.
As in the technique of Patent Document 1, in the type of mainspring drive unit that self-travels a door in the middle of movement, the traveling gear does not mesh with the traveling rack after the sliding door has been opened or closed. All the accumulated power will be released. Therefore, the amount of power stored in the mainspring when the winding gear winds the mainspring and the door starts self-propelling is always the same, and the self-propelling speed cannot be adjusted.
On the other hand, it is conceivable to adjust the self-running speed by increasing or decreasing the length of the take-up rack. However, changing the length of the take-up rack takes time and labor. For example, when the winding rack is lengthened, there is a disadvantage that the manual operation section becomes long.
In Patent Document 2, the traveling gear is always meshed with the driven gear and the rack, the mainspring is wound up when operating in one direction of opening and closing, and the mainspring is released when operating in the other direction. A mainspring drive unit for self-propelled doors is disclosed. In the cited reference 2, a spring winding amount adjusting tool that locks one end of the spring is provided, and the amount of winding the spring in advance is adjusted by the spring winding amount adjusting tool, so that the winding of the spring by the driven gear is completed. It is disclosed that the self-running speed when the sliding door self-runs is adjusted by adjusting the amount of stored energy. In the technique of Patent Document 2, the traveling gear also serves as a winding gear, and is always meshed with the rack and the driven gear.

JP 2007-39997 A JP 2009-228410 A

  However, in the mainspring drive unit of the type in which the winding operation direction of the mainspring and the traveling direction are the same as in the cited document 1 and assists the movement in the same direction during the opening / closing operation of the sliding door, the driven gear is connected to each rack. Since there is a case where they are not connected by a gear train, there is a problem in that the amount of power stored in the mainspring cannot be adjusted because all of the mainspring is released from the mainspring winding amount adjusting tool as in Patent Document 2, and all the springs are released. It was.

  Therefore, an object of the present invention is to provide a mainspring drive unit and a sliding door that can adjust the self-running speed when the mobile body is self-running from the middle after moving the moving body in one direction without changing the manual operation section.

According to the first aspect of the present invention, there is provided a mainspring, a mainspring winding amount adjusting tool in which one end of the mainspring is locked, a driven gear in which the other end of the mainspring is locked, and a tooth in the driven gear. A winding gear provided so as to be movable between a meshing position and a position where the engagement is released, and a position where it meshes with the traveling rack and a position where it meshes with the driven gear and a position where the meshing is released are provided. A travel gear and a stopper gear that meshes with the driven gear and whose rotation range is restricted, and winds the mainspring by traveling the winding rack with the winding gear meshed with the driven gear to accumulate power At the same time, when the driven gear rotates in one direction with respect to the mainspring winding amount adjusting tool, the mainspring is wound up, and when the mainspring is released, the driven gear rotates in the other direction, so that the traveling gear becomes the winding gear. roll The traveling rack is moved by rotating in the same direction as the rotational direction of the spring, and the stored amount of the mainspring can be adjusted by rotating the mainspring winding amount adjusting tool and fixing it at a predetermined position. The mainspring drive unit.

  The invention described in claim 2 includes a horizontal frame provided with the winding rack and the traveling rack, and a door provided with the mainspring drive unit according to claim 1, wherein the winding rack and the traveling rack are of the horizontal frame. The sliding door is provided in the longitudinal direction and at different positions in the expected direction of the horizontal frame, and the traveling gear meshes with the traveling rack when the winding gear is separated from the winding rack.

According to the first aspect of the present invention, since the stopper gear restricts the rotation range of the driven gear, the engagement between the traveling gear and the traveling rack and the engagement between the winding gear and the winding rack are released. Even if the mainspring is not released, the driven gear rotates in the winding rack before the driven gear rotates to wind up the mainspring, and the main gear is released to release the driven gear in the other direction. After the traveling gear rotates and moves the traveling rack, the force accumulated in the mainspring can be made the same.
Therefore, the amount of power stored when the mainspring is wound can be adjusted by adjusting the mainspring winding amount (biasing force) with the mainspring winding amount adjusting tool. Therefore, the moving body with the mainspring drive unit attached is manually operated in one direction. After that, the self-running speed of the moving body that runs in the same direction can be adjusted.
The mainspring winding amount adjusting tool can be further rotated as required, and the tension of the mainspring can be adjusted any number of times.
Since the self-running speed is adjusted by adjusting the winding amount of the mainspring, the self-running speed can be adjusted without changing the length of the winding rack.

According to the second aspect of the present invention, it is possible to adjust the self-running speed at which the sliding door self-runs in the same direction as the operation direction from the middle of the opening or closing operation in the sliding door opening / closing operation.
The self-running speed in the sliding door can be adjusted any number of times.
Since the self-running speed of the door can be adjusted without changing the length of the winding rack provided in the horizontal frame, construction work such as replacement of the winding rack is unnecessary.

It is a top view in a case when the cover of the mainspring drive unit concerning embodiment of this invention is opened, and is a figure when the mainspring is fully released. It is the block diagram which showed the meshing relationship of the gear train of the mainspring drive unit shown in FIG. It is a figure of a tension adjustment gear, (a) is an exploded perspective view of the tension adjustment gear, (b) is a perspective view of the lid portion locked by the tension adjustment gear as seen from the inside, (c) and ( d) is a sectional view of a tension adjustment gear portion in the mainspring drive unit, (c) before tension adjustment, and (d) is a diagram when tension adjustment is performed. It is a top view in a case when the cover of the mainspring drive unit concerning an embodiment of the invention is opened, and is a figure at the time of starting a mainspring winding. It is the block diagram which showed the meshing relationship of the gear train at the time of the spring winding shown in FIG. It is a top view in a case when the cover of the mainspring drive unit concerning embodiment of this invention is opened, and is a figure at the time of the end of a mainspring winding. It is the block diagram which showed the meshing relationship of the gear train at the time of completion | finish of the mainspring winding shown in FIG. In this Embodiment, it is a schematic block diagram which shows the relationship of the structural member as described in a claim. It is a figure which shows a spring drive unit and a relationship with a rack, (a) is a top view, (b) is a side view, (c) is the top view which looked at the upper frame from the bottom. It is a front view of the sliding door which fractures | ruptures and shows a part of upper frame. It is AA sectional drawing shown in FIG. It is a modification of the present invention, and is a block diagram showing the relationship between the mainspring, the mainspring winding amount adjusting tool and the driven gear, and their surroundings.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. As shown in FIG. 10, the sliding door 1 according to the present embodiment is provided so as to be slidable in the longitudinal direction of the upper frame 3, and a frame 9 in which an upper frame (horizontal frame) 3 and left and right saddle frames 7, 7 are assembled. This is a one-way suspension door provided with a door 11.
As shown in FIG. 11, a rail 13, a traveling rack 15, and a take-up rack 17 are provided on the upper frame 3, and a door 19 and a mainspring drive unit 21 that travel on the rail 13 are provided on the door 11. It is provided. As shown in FIG. 10, in the present embodiment, a total of two spring drive units 21 are provided for opening and closing the door 11, and the winding rack 17 corresponds to each spring drive unit 21. A traveling rack 15 is provided, and the traveling rack 15 is shared by the two mainspring drive units 21 as shown in FIG.
As shown in FIG. 9 (c), the traveling rack 15 and the take-up rack 17 are disposed in the longitudinal direction of the upper frame 3, and the traveling rack 15 is disposed in the longitudinal direction of the upper frame on one side of the prospective direction. The two take-up racks 17 are arranged on the other side with a gap therebetween. A traveling gear 23 of each mainspring drive unit 21 to be described later can be engaged with the traveling rack 15, and a winding gear 25 of one mainspring driving unit 21 can be engaged with one winding rack 17. The other take-up rack 17 is provided with a take-up gear 25 of the other mainspring drive unit 21 so as to be able to engage with each other.

As shown in FIGS. 1, 2, and 8, the mainspring drive unit 21 includes a mainspring 27, a fixed gear 29 that houses the mainspring 27, a driven gear 31, and a driven gear 31 via a winding gear train 37. A winding gear 25 that meshes with the driven gear 31, a traveling gear 23 that meshes with the driven gear 31 via a traveling gear train 39, a stopper gear 33 that meshes with the driven gear 31 via a stopper gear train 38, A tension adjusting gear 35 meshed with the fixed gear 29 is provided. The fixed gear 29 is a barrel gear that houses the mainspring 27. In the present embodiment, the mainspring winding amount adjusting tool 28 is constituted by the fixed gear 29 and the tension adjusting gear 35. The mainspring winding amount adjusting tool 28 is capable of adjusting the amount of accumulated power of the mainspring 27 by rotating it and fixing it at a predetermined position.
An outer peripheral end 27 a of the spring 27 is locked to the fixed gear 29, and an inner peripheral end 27 b of the spring 27 is locked to the driven gear 31.
The driven gear 31 integrally includes a large diameter portion 31 a and a small diameter portion 31 b, and the large diameter portion 31 a has the same diameter as the outer diameter of the fixed gear 29. Therefore, in FIG. 1, at the position where the tension adjustment gear 35 is engaged, the large diameter portion 31 a of the driven gear 31 is partially broken to show the engagement between the tension adjustment gear 35 and the fixed gear 29.

The take-up gear 25 can be engaged with the take-up rack 17 as described above, and as shown in FIGS. 1 and 2, the take-up gear 25 is engaged with the small-diameter portion 31 b of the driven gear 31 via the take-up gear train 37. Match.
In the present embodiment, the winding gear train 37 is composed of only the first moving gear 49. As shown by a broken line in FIG. 1, the first moving gear 49 is movable in the first groove 51 and is located at the stopper gear side end of the first groove 51 shown in FIG. Only the winding gear 25 meshes with the small-diameter portion 31b of the driven gear 31, but the shaft 49a of the first slide gear 49 is connected to the driven gear side end of the first groove 51 as shown in FIG. When positioned, it meshes with the small diameter portion 31 b of the winding gear 25 and the driven gear 31.
The first moving gear 49 is pushed down when the winding gear 25 rotates in the winding direction (arrow S) of the mainspring, and the shaft 49a moves in the first groove 51 from the stopper gear side end shown in FIG. The first moving gear 49 meshes with the small diameter portion 31 a of the driven gear 31 located at the driven gear side end as shown in FIG. Further, when the take-up gear 25 is detached from the take-up rack 17, the small-diameter portion 31a is moved from the state in which the first moving gear 49 is engaged with the small-diameter portion 31a of the driven gear 31 as shown in FIG. When rotating in the direction (arrow T), the first moving gear 49 is pushed up and the shaft 49a moves to one end side in the first groove, and the meshing with the driven gear 31 is released as shown in FIG. The
The stopper gear 33 includes a contacted portion 33a. When the stopper gear 33 is rotated by a predetermined angle, the stopper gear 33 is brought into contact with a stopper 55 provided on the case 53 and its rotation range is restricted. That is, the rotation range is restricted so that the stopper gear 33 cannot rotate once.

As shown in FIGS. 1 and 2, the stopper gear 33 always meshes with the large-diameter portion 31 a of the driven gear 31 via the stopper gear train 38. That is, the stopper gear 33 meshes with the small diameter portion 57b of the first reduction gear 57, the large diameter portion 57a of the first reduction gear 57 meshes with the small diameter portion 59b of the second reduction gear 59, The large diameter portion 59 a of the 2 reduction gear 59 meshes with the large diameter portion 31 a of the driven gear 31.
The traveling gear 23 can mesh with the traveling rack 15 and meshes with the large diameter portion 31 a of the driven gear 31 via the traveling gear train 39. The traveling gear 23 has a large diameter portion 23 a and a small diameter portion 23 b coaxially, and the large diameter portion 23 a meshes with the traveling rack 15.
The traveling gear train 39 includes a second moving gear 61, a third reduction gear 63, and an idle gear 65. The second moving gear 61 is provided so that the shaft 61a can move freely in the second groove 67 indicated by a broken line, and when the second moving gear 61 is located at the traveling gear side end of the second groove 67 as shown in FIG. When meshed with the portion 23b and positioned at the free gear side end, as shown in FIG. 4, it is separated from the small diameter portion 23b of the traveling gear 23 and meshed with the idle gear 65.
When the third reduction gear 63 is pushed up by rotation in the counterclockwise direction (arrow U in FIG. 1), the second moving gear 61 is positioned at the traveling gear side end of the second groove 67 and is rotated in the clockwise direction (arrow W in FIG. 1). 4), the shaft 61a is positioned at the free gear side end of the second groove 67 and disengaged from the traveling gear 23 and meshes with the free gear 65 as shown in FIG.
The third reduction gear 63 is always meshed with the second moving gear 61 and the large diameter portion 31 a of the driven gear 31.
As shown in FIG. 3, the tension adjusting gear 35 has an engagement groove 43 that can be engaged with the tip of a jig J such as a driver at the end on the side of the lid member 42 that covers the case 53 of the mainspring drive unit 21. And is constantly urged toward the lid member 42 by the spring 41. Further, a locked portion 45 is formed around the engagement groove 43 of the tension adjustment gear 35 and is pushed by the urging force of the spring 41 as shown in FIG. The rotation of the tension adjusting gear 35 is restricted by the engaged portion 45 engaging with the engaging portion 47 formed on the lid member 42. The engagement groove 43 of the tension adjustment gear 35 is exposed to the outside from the hole 42a of the lid member 42. When adjusting the tension, as shown in FIG. 3D, the tip of the jig J is inserted from the hole 42a and pressed against the engaging groove 43 to separate the tension adjusting gear 35 from the lid member 42 and Release the mesh with the locking portion 47 and turn.

Next, the effect of the sliding door 1 provided with the mainspring drive unit 21 which concerns on this Embodiment is demonstrated.
In the state before the winding of the mainspring shown in FIG. 1, the door 11 is in the closed position, and in the mainspring driving unit 21, the mainspring 27 is in the released state, and the winding gear 25 is not engaged with the winding rack 17. . The contacted portion 33 a of the stopper gear 33 is in contact with one side of the stopper 55.
As shown in FIG. 10, when the opening operation of the door 11 is started, the winding gear 25 starts meshing with the winding rack 17, and the winding gear 25 moves the winding rack 17. When the winding gear 25 rotates in the S direction shown in FIG. 1, the first moving gear 49 is pushed down, and the shaft 49a of the first moving gear 49 moves in the first groove 51 to the driven gear side end. As shown in FIG. 4, it meshes with the small diameter portion 31 b of the driven gear 31. At this time, the stopper gear 33 is in a starting position located on one side of the stopper 55.
As shown in FIG. 4, the first moving gear 49 rotates in the clockwise direction (E shown in FIG. 4), and the driven gear 31 rotates in the X direction via the first moving gear 49 to wind up the mainspring 27. To start. On the other hand, in the traveling gear train 39, the third reduction gear 63 meshed with the large diameter portion 31a of the driven gear 31 rotates in the clockwise direction (Y direction) and pushes down the second moving gear 61. The moving gear 61 is disengaged from the traveling gear 23 and meshes with the idle gear 65. As the winding gear 25 continues to rotate in this state, the driven gear 31 winds up the mainspring 27. Then, the stopper gear 33 rotates in the arrow Z direction.
When the winding of the mainspring 27 is completed, as shown in FIG. 6, the contacted portion 33a of the stopper gear 33 comes into contact with the other side of the stopper 55 so that the driven gear 31 is restricted in the rotation range, and the driven gear 31 is not more than that. Does not rotate. The door 11 is in the middle of the opening operation, and is in a position where the engagement between the winding gear 25 and the winding rack 17 is completed.

Next, the traveling gear 23 starts meshing with the traveling rack 15. In this state, the mainspring 27 is in a state where the winding is completed and the urging force of the mainspring 27 is accumulated.
The fixed gear 29 is always in mesh with the tension adjusting gear 35, and the tension adjusting gear 35 is locked to the lid member 42, so that it is in a fixed state.
Then, when the take-up gear 25 is detached from the take-up rack 17, the stored spring 27 starts to be released. As a result, the driven gear 31 starts to rotate in the T direction shown in FIG. 6, and the second moving gear 61 engaged with the third reduction gear 63 is pushed up, so that the second movement is performed as shown in FIG. The gear 61 meshes with the small diameter portion 23 b of the traveling gear 23. In this state, the traveling gear 23 meshes with the traveling rack 15 and the door 11 starts to self-travel in the same direction as the opening direction.
On the other hand, in FIG. 6, since the small diameter portion 31b of the driven gear 31 also starts to rotate in the T direction, the first moving gear 49 is pushed up by the small diameter portion 31b of the driven gear 31, and the axis of the first moving gear 49 is The first groove 51 is moved to the stopper gear side end, and the meshing between the first moving gear 49 and the small diameter portion 31b of the driven gear 31 is released as shown in FIG. That is, each gear is in the state shown in FIG. 1, and the rotation of the driven gear 31 starts. The stopper gear 33 also rotates counterclockwise as indicated by the arrow from the start of releasing the accumulated power of the spring 27 in FIG. As shown in FIG. 1, when the rotation is started and the range that does not rotate once is rotated, the contacted portion 33 a contacts the stopper 55 and meshes with the stopper gear 33 via the stopper gear train 38. The driven gear 31 also stops at this position. In this state, even if the winding amount of the mainspring remains, the mainspring 27 is not released and is not released.
And the door 11 complete | finishes self-propelled and will be in a fully open position.
When the door 11 moves from the open position to the closed position, the traveling rack 15 meshes with the traveling gear 23 of the other spring drive unit 21, and the winding gear 25 meshes with the other winding rack 17. Similarly to the opening operation described above, after winding the mainspring 27 by the closing operation, the self-running in the same direction is performed by releasing the stored power of the wound mainspring.
In the present embodiment, when the door 11 moves from the open position to the closed position, when the winding gear 25 does not mesh with the winding rack 17, the first moving gear 49 is in the position shown in FIG. When the winding gear 25 meshes with the winding rack 17, the first moving gear 49 is in the position shown in FIG. Further, since the second moving gear falls under its own weight, the driven gear 31 is not connected to any of the racks 15 and 17, but is engaged with the stopper gear 33 and the stopper gear 33 is connected to the stopper 55. Since it is in contact with one side, the force accumulated before the door operation is not released.

Next, the speed adjustment of the door when the stored spring 27 is released and self-propelled will be described. For example, in FIG. 1, in order to increase the self-running speed, a tension screwdriver 35 is inserted by inserting a flathead screwdriver into the engaging portion 43 of the tension adjustment gear 35 protruding outward from the hole 42 of the lid 42. Moves to the case side against the biasing force of the spring 41, and as shown in FIG. 3, the locking of the locked portion 45 and the locking portion 47 of the lid member 42 is released, so that it can rotate freely. It becomes. When the tension adjustment gear 35 becomes rotatable, the fixed gear rotates counterclockwise by rotating clockwise (arrow F direction) as shown in FIG. 1 while pushing the engaging portion 43. On the other hand, since the rotation range of the driven gear 31 is restricted by the stopper gear 33, the mainspring 27 is wound up, and the winding amount of the mainspring 27 is increased. Thereby, the amount of stored power of the mainspring at the end of winding of the mainspring 27 can be increased, and the self-running speed of the door can be increased.
On the other hand, in order to reduce the self-running speed, the tension adjusting gear 35 is rotated in the reverse direction to reduce the winding amount of the mainspring 27.

According to the sliding door 1 according to the present embodiment, by adjusting the winding amount of the mainspring 27 with the tension adjustment gear 35, the door 11 is self-propelled in the same direction from the middle after manually operating the door 11 in one direction. Can adjust the self-running speed.
Since the stopper gear 33 restricts the rotation range of the driven gear 31, even if the meshing between the traveling gear 23 and the traveling rack 15 and the meshing between the winding gear 25 and the winding rack 17 are released, the mainspring 27 does not move. The driven gear 31 rotates before the main gear 27 is wound by rotating the driven gear 31 by the winding gear 25 running on the winding rack 17 without releasing the force, and the driven gear 31 is released by releasing the power of the mainspring 27. By rotating in the other direction, the power accumulated in the mainspring 27 can be made the same after the traveling gear 23 rotates and moves the traveling rack.
Since the rotation of the tension adjusting gear 35 is restricted after the fixed gear 29 is rotated, the tension of the mainspring 27 can be adjusted any number of times by rotating the tension adjusting gear 35.
Since the self-propelling speed is adjusted by adjusting the winding amount of the mainspring 27, the self-propelling speed can be adjusted without changing the length of the take-up rack 17, and construction work such as replacement of the take-up rack 17 is unnecessary. Can be.
When the traveling gear 23 receives the accumulated force of the mainspring 27 and does not rotate, the second moving gear 61 meshes with the idler gear 65, so that the shaft 61 a of the second moving gear 61 can rattle within the second groove 67. This can prevent noise caused by rattling.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
For example, the adjustment of the winding amount of the mainspring 27 by the tension adjusting gear 35 is not limited to the winding start state of the mainspring 27 shown in FIG. 1, but may be at the end of winding of the mainspring 27 shown in FIG. It can be adjusted in any state.
In the embodiment described above, the winding gear train 37 is configured only by the first moving gear 49, but another gear may be interposed.
The traveling gear train 39 may be configured by only the second moving gear 61, and the third reduction gear 63 and the idle gear 65 may be omitted.
The mainspring drive unit 21 is not limited to being provided at the sliding door, but may be provided, for example, at a drawer such as a kite, and the take-up rack 17 and the traveling rack 15 may be provided on the kite body so that the drawer is self-propelled.
The sliding door may be configured such that the traveling rack 15 and the take-up rack 17 are provided in the lower frame, and the mainspring driving unit 21 is provided at the lower end of the door.
As shown in FIG. 12, a space may be formed on the inner periphery of the driven gear 31 to store the mainspring 27 in the driven gear 31.
At the end of the winding of the mainspring shown in FIG. 6, the contacted portion 33 a of the stopper gear 33 may not contact the other side of the stopper 55.
The mainspring winding amount adjustment tool 28 is not limited to the two gears of the fixed gear 29 and the tension adjustment gear 35. For example, the mainspring winding amount adjustment tool 28 is a single disk that is fixed at an arbitrary angle. One end may be locked and the mainspring 27 may be wound up.

DESCRIPTION OF SYMBOLS 1 Sliding door 15 Traveling rack 17 Winding rack 23 Traveling gear 25 Winding gear 27 Spring mainspring 28 Winding volume adjustment tool 29 Fixed gear 31 Driven gear 33 Stopper gear 35 Tension adjusting gear

Claims (2)

The mainspring, the mainspring winding amount adjustment tool that locks one end of the mainspring, the driven gear that locks the other end of the mainspring, the position that meshes with the take-up rack and the meshed position with the driven gear, and the meshing are released. A winding gear movably provided at a position , a traveling gear engagable with a traveling rack and a position where the driven gear is engaged and a position where the engagement is released, and a driven gear. And a stopper gear whose rotation range is restricted, and when the winding gear is engaged with the driven gear, the mainspring is wound up and stored by running the winding rack. When the driven gear rotates in one direction, the mainspring is wound up, and when the wound spring is released, the driven gear rotates in the other direction, so that the traveling gear rotates in the same direction as the winding rotation direction of the winding gear. And it is intended to move the traveling rack, spring drive unit, characterized in that are to be adjusted to the accumulated force of the power spring by rotating operating the mainspring winding amount adjuster fixed at a predetermined position.   A horizontal frame provided with a winding rack and a traveling rack, and a door provided with the mainspring drive unit according to claim 1, wherein the winding rack and the traveling rack are provided in the longitudinal direction of the horizontal frame and the prospect of the horizontal frame A sliding door characterized in that the traveling gear meshes with the traveling rack when the winding gear is separated from the winding rack, provided at different positions in the direction.

Images