JPH0635093Y2 - Holding structure for the lower rail of the hanging door - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a structure for holding a door body on a lower rail which is hung on an upper rail and movably held. The present invention relates to a technique for suppressing the protrusion amount of the lower rail from the surface.

[Prior Art] Conventionally, a door body 3 that is hung on an upper rail 1 and held movably
As shown in FIG. 4 and FIG. 5, the structure for holding the lower rail 2 is such that a side bearing 36 'is attached to the lower end portion of the vertical axis 6 protruding from the lower end of the door body 3, and this side bearing 3'
6'abuts on the left and right receiving portions 2b of the lower rail 2, and the pinion gear 11 is attached to the vertical axis 6 above the side bearing 36 'so that the pinion gear 11 meshes with the rack gear 10 on the lower rail 2 side. A slider S is attached to the vertical axis 6 above the slider 11, and the engaging groove 35 'of the slider S is engaged with the lip pieces 2a, 2a of the lower rail 2 so that the lower end of the door body 3 is attached to the rack gear 10 and the pinion gear. The 11 was used for stable and smooth running on the side bearings 36 '.

[Problems to be solved by the invention] However, the side bearing 36 ',
In the case where the rack gear 10 and the slider S are mounted, the vertical height of the rack gear 10 and the height of the lower rail 2 are correspondingly increased, and as a result, the lower rail 2 rises high from the floor surface F and is supported for the passage of wagons and the like. However, there is a problem in that the number of parts is increased and the number of assembling steps is also increased.

The present invention has been made in view of such problems,
The purpose is to reduce the number of parts and man-hours while keeping the door running stably, to prevent the lower rail from protruding from the floor, and to prevent it from supporting the passage. It is to provide a holding structure for a lower rail of a hanging door.

[Means for Solving the Problems] In the retaining structure for a lower rail of a hanging door of the present invention, the lower rail 2 is formed into a channel shape with a lip that opens upward, and the entire rail length is provided on a vertical wall on one side of the lower rail 2. Rack gear over 10
Is provided, a pinion gear 11 is provided at the lower end of the vertical axis 6 protruding from the lower end of the door body 3, the pinion gear 11 is meshed with the rack gear 10, and an annular rotary engagement body 36 is rotatably provided above the pinion gear 11 so that the vertical axis 6 is rotatable. , The outer periphery of the central portion of the rotary engagement body 36 is circumferentially recessed to form an engagement groove 35.
The lower rail 2 and the left and right lip pieces 2a, 2a of the lower rail 2 are slidably rotatably engaged with each other, and the upper flange portion 36a which constitutes the upper side wall of the engaging groove 35 and the lower side wall of the engaging groove 35 are constituted. The lower collar portion 36b is arranged so as to face the upper surface side and the lower surface side of the lip pieces 2a, 2a, respectively.

[Operation] As described above, the pinion gear 11 is provided at the lower end of the vertical axis 6,
The pinion gear 11 meshes with the rack gear 10,
An annular rotary engagement body 36 is rotatably held on the vertical axis 6 above 11, and an outer periphery of the central portion of the rotary engagement body 36 is circumferentially recessed to form an engagement groove 35. An upper flange portion 36a that slidably contacts the left and right lip pieces 2a, 2a of the lower rail 2 and is rotatably in contact with the lower rail 2, and that constitutes the upper side wall of the engaging groove 35, and a lower collar that constitutes the lower side wall of the engaging groove 35. By disposing the portion 36b on the upper surface side and the lower surface side of the lip pieces 2a, 2a, respectively, the pinion gear
11 and the rack gear 10 and the engagement groove 35 of the rotary engagement body 36
With the engagement of the lip pieces 2a, 2a of the lower rail 2, the side bearing 36 'can be omitted, while the door body 3 can be driven sufficiently stably, and the number of parts can be reduced and The number of assembling steps can be reduced, especially the height of the lower rail 2 can be lowered, and the height of the lower rail 2 can be kept low.
The amount by which the lower rail 2 projects from the floor surface F is suppressed so that the lower rail 2 does not support the passage of a wagon or the like.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 2, the upper rail 1 is formed in a hollow shape,
The L-shaped corner portion 1c is placed on the upper end of the furniture 5 as a whole and is formed into a substantially L shape, and the furniture 5 is attached by a fixture such as a screw.
It is attached to the entire length of. The lower rail 2 is also fixed to the lower end of the furniture 5, and a plurality of door bodies 32 are built in the upper rail 1 and the lower rail 2 so as to be freely movable. The doors 3 are arranged in a straight line along the upper and lower rails 1 and 2 so that adjacent ones abut each other so that the front opening of the furniture 5 can be closed. In such a closed state, the adjacent door bodies 3 and 3 may be, for example, fitted in a concavo-convex so that no gap is generated between the door bodies 3 and 3. The door body 3 is opened by swinging the upper and lower rails 1 and 2 so as to be substantially orthogonal to the rail length direction, and the door body 3 ... It is gathered at one end of 1, 2 so that the front opening of the furniture 5 can be opened wide. The swing rotation structure will be described below.

As shown in FIG. 2, the upper rail 1 is divided into a rack and pinion chamber 8 extending over the entire length and a runner chamber 9 below the lower rail 2, and only the rack and pinion chamber 8 is formed on the lower rail 2 over the entire length. . Rack and pinion chamber 8 for upper and lower rails 1 and 2
A rack gear 10 is provided along the vertical wall on one side over the entire length of the upper and lower rails 1. A rack gear 10 provided in the rack / pinion chamber 8 of the upper and lower rails 1 is provided with a pinion gear 11 which is provided on the door body 3 side and horizontally rotates, and is provided on the door body 3 side so as to be vertically rotatable around a horizontal shaft 40. runner
12 is rotatably mounted on the runner receiving surface 13 on the upper surface of the lip pieces 1a, 1a of the upper rail 1, and the rack gear 10 and the pinion gear 11 mesh with each other when the door body 3 travels. Runner 12 keeps running
13 It rolls on the top. And the doors of each other
When the contact between the three and the three is released and the door body 3 can travel, the door body 3 can be opened and rotated about the vertical axis 6 that holds the pinion gear 11.

An upper hinge 15 is attached to the upper end of the door body 3, and a lower hinge 16 is attached to the lower end of the door body 3. From the holder 41 that holds the four runners 12 to the cylindrical screw cylinder shaft
17 is hung down, the upper vertical axis 6 holding the upper pinion gear 11 is rotatably inserted in the screw cylinder shaft 17, and the screw cylinder shaft 17 is screwed into the screw hole of the upper hinge 15 and The gap between the door body 3 and the upper rail 1 can be adjusted by changing the screwing depth.
The lower hinge 16 holds the lower pinion gear 11 and holds the lower vertical axis 6 rotatably. Then, the load of the door body 3 is applied to the runner 12 via the upper hinge 15, and the load is received by the upper rail 1, so that the load of the door body 3 is not applied to the meshing portion of the pinion gear 11 and the rack gear 10. is there.

The upper vertical axis 6, the middle vertical axis 6 and the lower vertical axis 6 are joints 19 respectively.
Are connected and integrated with each other.
The pivot 20 as 36 is attached so as to be rotatable relative to each other, and the engagement grooves 35 of the pivot 20 are slidably engaged with the lip pieces 2a, 2a of the lower rail 2 to guide the traveling of the door body 3. I am doing it. That is, as shown in FIG. 2 and FIG. 3, the rotary engaging member 36 is formed by recessing the outer periphery of the central portion in the circumferential direction to form the engaging groove 35. By engaging the lip pieces 2a, 2a of sliding contact rotatably,
The upper flange portion 36a that constitutes the upper side wall of the engaging groove 35 and the engaging groove 35
As shown in FIG. 2, the lower collar portion 36b forming the lower side wall of the lower lip is disposed opposite to the upper surface side and the lower surface side of the lip pieces 2a, 2a, respectively, and the rotary engagement body 36 is opposed to the lip pieces 2a, 2b. The engaging groove 35 of the rotary engaging member 36 surely rotates in sliding contact with the lip pieces 2a, 2b of the lower rail 2 while preventing the door body 3 from traveling smoothly while preventing the door body 3 from moving vertically. . Then, a spring 43 is interposed between the lower hinge 16 and the spring receiver 42 of the lower vertical axis 6, and the loads of the upper, middle, and lower vertical axes 6 and the like are received by the spring 43, and these loads are applied to the rack gear 10. The pinion gear 11 is prevented from engaging with the meshing part, and the lower end of the vertical axis 6 does not contact the groove bottom of the lower rail 2.

Therefore, a pinion gear 11 is provided at the lower end of the vertical axis 6, the pinion gear 11 is meshed with the rack gear 10, and an annular rotary engaging body 36 is rotatably held on the vertical axis 6 above the pinion gear 11 so that the rotary engaging body 36 The engaging groove 35 is formed on the outer periphery, and the engaging groove 35
Is engaged with the left and right lip pieces 2a, 2a of the lower rail 2 in a slidable contact with each other so that the pinion gear 11 and the rack gear 10 can be rotated.
With the engagement with the engagement groove 35 of the rotary engaging body 36 and the engagement of the lip pieces 2a, 2a of the lower rail 2, the conventional side bearing 36 'can be driven while the door body 3 travels sufficiently stably. It eliminates the number of parts and reduces the number of assembly steps.
Especially, the height of the member to be inserted into the lower rail 2 should be kept low, the height of the lower rail 2 should be kept low, and the amount of protrusion of the lower rail 2 from the floor surface F should be reduced so that it could not be used as a support for the passage of wagons. is there.

In the embodiment, the present invention is applied to the device for opening and closing the front opening of the furniture 5, but it may be applied to a partition.

Further, in the embodiment, the upper portion of the door body 3 is also configured to be able to travel using the rack gear 10 and the pinion gear 11, but it may be changed to another traveling configuration.

[Effects of the Invention] In summary, according to the present invention, the lower rail is formed in the shape of a channel with a lip that opens upward, a rack gear is provided on one vertical wall of the lower rail over the entire rail length, and the vertical axis protruding from the lower end of the door body A pinion gear is provided at the lower end of the pinion gear, the pinion gear is meshed with the rack gear, an annular rotary engaging body is rotatably held on the vertical axis above the pinion gear, and the outer periphery of the central portion of the rotary engaging body is recessed circumferentially. A mating groove is formed, the engaging groove is slidably engaged with the left and right lip pieces of the lower rail, and the upper side wall of the engaging groove constitutes the upper side wall of the engaging groove and the lower side wall of the engaging groove. Since the lower brim portion is disposed on the upper surface side and the lower surface side of the lip piece, respectively, the engagement between the pinion gear and the rack gear and the engagement groove of the rotary engagement body with the lip piece of the lower rail can be achieved. Stable running of the door However, in this case, in particular, the upper brim portion forming the upper side wall of the groove of the engaging groove and the lower brim portion forming the lower side wall of the engaging groove are respectively on the upper surface side and the lower surface side of the lip piece, respectively. Faced with each other, the engaging groove of the rotary engaging body slides securely in contact with the lip piece of the lower rail while preventing the rotary engaging body from shifting in the vertical direction with respect to the lip piece, so that the door body travels smoothly. Although it is a guide, and in addition to being able to smoothly guide the movement of the door body in this way, the side bearing that was used conventionally can be omitted, and the number of parts can be reduced. The assembly man-hours are reduced, the cost is reduced, especially the height to be inserted into the lower rail can be reduced, the height of the lower rail is kept low, the amount of protrusion of the lower rail from the floor surface is suppressed, and it can be used for passing wagons etc. You can prevent it from becoming a support There is an advantage that had.

[Brief description of drawings]

1 (a) and 1 (b) are explanatory views for explaining an open / closed state of an embodiment of the present invention, FIG. 2 is a sectional view of the same as above, FIG. 3 is a partial perspective view of the same as above, and FIG. FIG. 5 is a partial perspective view of the same as above. 1 is an upper rail, 2a is a lip piece, 2 is a lower rail, 3 is a door, 6 is a vertical axis, 10 is a rack gear, 11 is a pinion gear, 35 Is an engaging groove, and 36 is a rotary engaging body.

Claims (1)

[Scope of utility model registration request] 1. A structure for holding a door body hung on an upper rail and movably held on the lower rail, wherein the lower rail is formed in a channel shape with a lip opening upward, and one side of the lower rail extends vertically. A rack gear is provided over the entire length of the rail on the wall, a pinion gear is provided at the lower end of the vertical axis protruding from the lower end of the door body, the pinion gear meshes with the rack gear, and an annular rotary engagement body is rotatably held on the vertical axis above the pinion gear. Then
The outer periphery of the central portion of the rotary engagement member is circumferentially recessed to form an engagement groove, and the engagement groove is slidably engaged with the left and right lip pieces of the lower rail and is rotatably engaged with the groove of the engagement groove. A retaining structure for a lower rail of a hanging door, in which an upper collar portion that constitutes a side wall and a lower collar portion that constitutes a lower sidewall of an engagement groove are arranged to face each other on an upper surface side and a lower surface side of a lip piece.