JPH0384189A - Moving partition device - Google Patents

Abstract

PURPOSE:To enhance the sound-proofness and light shielding function of a partition by a method in which a rotating action applied to an operating shaft is differentially distributed and transmitted to upper and lower elevating shafts to operate upper and lower close-contact parts held on each shaft. CONSTITUTION:After a moving wall is stopped, when the operating shaft 87 of an elevating shaft drive mechanism is turned, the rotating action is transmitted through a small bevel gear 90 and a large bevel gear 89 to a retainer 85 and an epicyclic gear 86 is rotated. When loads put on upper and lower elevating shafts 6 and 7 are the same, upper and lower sending nuts 83 and 84 are turned at the same speed, and the shafts 6 and 7 move to the projected direction with the same speed. When one of upper and lower close-contact parts provided to the tips of the shafts 6 and 7 comes into contact with the ceiling or floor face, one part is stopped, the epicyclic gear is revolved and turns, and the other is accelerated in speed. After the close-contact parts come into contact with the ceiling and floor face, when the shaft 87 is operated, both the close- contact parts are pressed on the ceiling and floor face with equal forces.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a movable partitioning device used for partitioning floors of hotels, offices, etc. as necessary.

[Prior art] This type of movable partition device has a ceiling rail with a continuous opening in the bottom wall fixed to the ceiling of a building, and allows multiple running bodies to run within the ceiling rail. In addition to arranging
A suspension rod is attached to the intermediate portion of each of these traveling bodies, and the lower ends of the suspension rods are passed through the opening and suspended below the ceiling rail. The movable wall is suspended and supported by the pair of suspension rods, respectively, so that the movable wall can be moved along the ceiling rail. When partitioning a floor by such movable walls, these movable walls are arranged in a line along the ceiling rail, and both ends in the width direction are brought into close contact with each other. Furthermore, in order to close the gap between the upper edge of the movable wall and the ceiling surface and the gap between the lower edge of the movable wall and the floor surface, which were necessary during the movement, from the upper and lower edges of the movable wall. The upper and lower contact members are made to protrude and are brought into close contact with the corresponding ceiling surface and floor surface, respectively.

Such upper and lower contact members are installed inside the movable wall and held by a lower elevating shaft, and these elevating shafts are raised and lowered by an elevating shaft drive mechanism to perform a protruding and retracting operation. A conventional lifting shaft drive mechanism includes an operating shaft having two types of threads with opposite threads, a pair of nuts screwed onto each thread of the operating shaft, and a link member with a rhombic shape. and a four-point link having left and right pivot points pivoted to each of the nuts,
The upper and lower pivot points of this four-point link and the upper and lower contact members are connected by lifting shafts, respectively. In addition,
The operating shaft is supported by a frame of a movable wall.-0 [Problems to be Solved by the Invention] In this configuration, the operating shaft is rotated through a detachable handle or the like. When the nuts screwed onto both threaded parts of the operating shaft are advanced in the direction toward each other, the left and right pivot points of the four-point link approach each other, and the upper and lower pivot points move apart. conduct. As a result, the upper and lower lifting shafts move apart, the upper contact member is pressed against the ceiling surface, and the lower contact member is brought into close contact with the floor surface. In addition, an elastic expansion and contraction part is provided in the middle of each lifting shaft, so that each lifting shaft can elastically contract when the upper and lower contact members are pressed against the ceiling or floor. There is.

However, if the upper gap and the lower gap are different from each other, the degree of expansion and contraction of the elastic expansion and contraction parts provided in the middle of each lifting shaft will be different. Therefore, when the dimensional difference between the upper gap and the lower gap is large, it becomes difficult to sufficiently absorb the difference only by the expansion/contraction action of the elastic expansion/contraction section. As a result, there may be a large difference in the pressing force between the upper and lower contact members, and in extreme cases, for example, even though the upper contact member is firmly pressed against the ceiling surface, the lower contact member may This may lead to a situation where the device is not completely pressed against the floor. Therefore, there is a problem in that sound insulation and light shielding performance deteriorate.

The present invention aims to solve such problems.

[Means for Solving the Problems] In order to achieve the above objects, the present invention employs the following configuration.

That is, the movable partition device according to the present invention includes a ceiling rail, a traveling body, a suspension rod, a movable wall, upper and lower contact members, upper and lower lifting shafts, and a differential gear type lifting shaft. The movable wall is movably suspended and supported on the ceiling rail via the suspension rod and the running body, and the movable wall is movably suspended from the ceiling rail via the suspension rod and the running body, , a lower close member is attached to the upper edge and the lower edge of the movable wall,
The elevating shafts are arranged so as to be able to protrude and retract toward the ceiling surface and the floor surface, and both of the elevating shafts have threaded portions at their base ends, and
The upper and lower contact members are each held at the distal end and are arranged to be movable up and down within the movable wall, and the elevating shaft drive mechanism includes a pair of bevel gears arranged with their axes aligned with each other; Upper and lower feed nuts that rotate together with each bevel gear, a retainer that is rotatably disposed on the outside of both bevel gears, and a planetary gear that is rotatably attached to this retainer and meshes with the side bevel gear. and configured to convert rotational motion introduced from the operating shaft into rotation of the retainer, and to screw the threaded portions of the elevating shafts forward and backward by the rotation of each of the feed nuts. It is characterized by what it did.

The operating shaft may be configured to be rotatable electrically or manually.

In order to reduce the number of parts and simplify the structure, it is preferable to provide the bevel gear with a boss portion, and form the feed nut by carving a female thread on the inner periphery of the boss portion.

[Operation] According to the movable partition device having such a configuration, when the operation shaft is rotated, the rotational motion is transmitted to the retainer, and the planetary gear held by the retainer revolves. that time,
When the loads acting on the upper and lower lifting shafts are the same, the planetary gears do not rotate, and the paired bevel gears rotate at the same speed. As a result, the upper and lower feed nuts rotate at the same speed, and the upper and lower lifting shafts screwed into these nuts move in the projecting direction at the same speed.

When one of the upper and lower contact members comes into contact with the ceiling or floor first, the protrusion of that one contact member stops, and the planetary gear rotates on its axis in addition to revolution. , the protrusion movement of the other lifting shaft is accelerated. When the operation is continued after both close contact members have come into contact with the ceiling surface and floor surface, the upper and lower close contact members are applied with equal force to the ceiling surface and the floor due to the appropriate revolution and rotation of the planetary gear. pressed against the surface.

[Example 1] An example of the present invention will be described below with reference to FIGS. 1 to 6.

As shown in FIG. 1, this movable partition device includes a ceiling rail 1 having a continuous opening 11 in the bottom wall fixed to the ceiling 2 of a building, and a plurality of running partitions installed in the ceiling rail 1. The bodies 3 are disposed in a movable manner, and suspension rods 4 are rotatably attached to the intermediate portions of each of these traveling bodies 3, and the lower ends of the suspension rods 4 are passed through the opening 11 to connect to the ceiling rail. It hangs below 1. A movable wall 5 is suspended and supported by a pair of suspension rods 4, respectively. In FIG. 1, only one moving wall 5 is shown.

The movable wall 5 has a wall main body 52 by connecting paired edge members 51 with a plurality of horizontal bars 52a, 52b, 52c, and 52d, and has decorative panels 53 on both sides of the wall main body 52.
The upper periphery member 54 is retractably accommodated on the upper edge, and the lower periphery member 55 is mounted on the lower edge.
It is designed so that it can be submerged. In addition, in FIG. 1, the interior of the movable wall 5 is shown with the decorative panel 53 omitted.

As shown in FIG. 4, the upper diaphragm member 54 is accommodated in a space formed between the upper edges of both decorative panels 53, and is capable of protruding and retracting toward the ceiling surface C. The upper circumference member 54 has profiles 54b1, 54b2, 54C1, 54c2 made of elastic material for sound insulation and light shielding.
A pair of shielding plate portions 54a1 and 54a2 provided on the lower edge
, brackets 54d1.54d2 provided inside each of these shielding plate portions 54a1.54a2, and brackets 54d1.5 of both of these shielding plate portions 54a1.54a2.
4c2 via spacers 54e1 and 54e2, and both brackets 54d1.5.
4d2 is provided with pins 54g which are pivotally attached to both left and right ends of this biasing arm 54f. In addition, in this embodiment, the pin 5 is connected between the pin 54g and each bracket 54d1, 54d2 and between the pin 54g and the biasing arm 54f.
A clearance is provided to allow a tilting motion of 4g, and as the pin 54g tilts, the − side shielding plate portion 54a,
and the shielding plate portion 54a2 on the other side can be differentially displaced in the vertical direction within a limited range. In this case, the end sticks 56 attached to both left and right ends of the close contact member 54 are also fixed to either the shielding plate portion 54a1 on the − side or the shielding plate portion 54a2 on the other side, as shown in FIG. It is divided into a concave member 56a and a convex member 56b fixed to the other, and these members 56a and 56b are connected to each other via a dovetail engagement portion 56c so as to be movable up and down. .

As shown in FIG. 4, the draft contact member 55 is accommodated in a space formed between the lower edges of both decorative panels 53, and is capable of protruding and retracting toward the floor surface F. This draft contact member 55 has profiles 55bl and 55b2.55c1.55C2 made of elastic material for sound insulation and light shielding on the upper side.
A pair of shielding plate portions 55at and 55a provided on the lower edge
2, a bracket 55d1.55d2 provided inside each of these shielding plate parts 55a1 and 55a2, and a bracket 55d1.55a of both of these shielding plate parts 55at and 55a2.
A biasing arm 55f disposed between the two brackets 55e1.55e2 and both brackets 55d1.55d.
2 and a pin 55g which is pivotally attached to both left and right ends of the urging arm 55f. In addition, this one also has pin 55.
g and each bracket 55dl, 55d2 and pin 5
A clearance is provided between the biasing arm 55g and the biasing arm 55f to allow the pin 55g to tilt, and as the pin 55g tilts, the shielding plate portion 55a1 on the negative side and the shielding plate portion 55a2 on the other side and can be differentially displaced in the vertical direction within a limited range. The end sticks 57 attached to both left and right ends of the close contact member 55 are also connected to the shielding plate portion 55 on the negative side.
It is divided into a concave member 57a fixed to either one of a1 or the other side shielding plate portion 55a2, and a convex member 57b fixed to the other side, and both of these members 57a s
57b are connected to each other via a dovetail groove engaging portion 57c so as to be movable up and down.

Inside the movable wall 5, as shown in FIG. 1, there are provided upper and lower lifting shafts 6.7 and an lifting shaft drive mechanism 8 for raising and lowering both the lifting shafts 6.7.

The upper and lower elevating shafts 6.7 each include a pipe-shaped proximal tube member 61.
．． 71 and the distal shaft member 6 engaged with the inner periphery of the distal end portion of the proximal tube member 61.71 so as to protrude to a predetermined length.
2.72, and a pressing spring 63.73 that urges the tip shaft member 62.72 in the projecting direction.
It is pivoted to the center of 5f. On the outer periphery of the proximal end of the proximal tube member 61.71, there is a threaded portion 61a171a with mutually opposite threads.
is the provision. Near the tip of the upper lifting shaft 6,
For example, a locking collar 64 is provided that comes into contact with the upper surface of the horizontal beam 52a, and the lower limit position of the lifting shaft 6 is defined by this contact. Further, in the vicinity of the tip of the lower lifting shaft 7, a locking collar 74 is provided, for example, which comes into contact with the lower surface of the horizontal bar 52d, and the upper limit position of the lifting shaft 7 is defined by this contact. .

As shown in FIGS. 1 and 5, the elevating shaft drive mechanism 8 includes a pair of bevel gears 81 whose axes are aligned with each other.
．． 82, upper and lower feed nuts 83.84 that rotate together with each of these bevel gears 8182, a retainer 85 that is rotatably disposed on the outside of both of these bevel gears 81.82, and a retainer 85 that is rotatable on its axis. It is equipped with a plurality of planetary gears 86 that are shaft-mounted and mesh with both the bevel gears 81 and 82, and are configured so that rotational motion introduced from the operating shaft 87 can be converted into rotation of the retainer 85. . Specifically, both the bevel gears 81 and 82 are formed with boss portions 81a and 82a that are elongated in the axial direction, and the inner circumferences of these boss portions 81a and 82a have opposite threads to each other. Each of the feed nuts 83 and 84 is formed by cutting internal threads 81b and 82b. Each of these feed nuts 83 , 84 is rotatably supported by the upper and lower end walls of the housing 88 that accommodates the bevel gears 81 , 82 and the planetary gears 86 .
．． 84, the threaded portions 61a, 7 of each of the lifting shafts 6.7.
1a are screwed together. The retainer 85 has a cylindrical shape and is fixed to one end surface of a large bevel gear 89 rotatably mounted on the outer periphery of the boss portion 81a of the bevel gear 81.

A small bevel gear 90 fixed to the operating shaft 87 meshes with the large bevel gear 89 . The operating shaft 87 is connected to the housing 88
It penetrates the peripheral wall of the housing and extends to the outside, and its extending end can be rotated electrically or manually. Specifically, a portion near the extending end of the operating shaft 87 is supported by the frame member 52e via a gear box 91 containing a helical gear or the like.

The extending end 87a of the operating shaft 87 is inserted into the edge member 51 through the frame member 52e, and a handle (not shown) is attached to the extending end 87a so that it can be rotated manually. It has become. The edge member 51 is provided with a through hole into which a handle can be inserted. The operating shaft 87 is
It is also connected to a motor 92 via a gear disposed within the gear box 91, and the operating shaft 87 can be rotated by the rotational force of the motor 92. A horizontal member 52f is installed between the frame members 52e, and the housing 88 is attached to the horizontal member 52f.

Note that power is supplied to the motor 92 from the ceiling rail 1.
A power line is installed on the inner surface of the ceiling wall of the traveling body 3.
A brush is provided in sliding contact with the power line, and a lead wire connected to the brush is introduced into the movable wall 5 through the axial hollow part of the suspension rod 4.

Next, the operation of this embodiment will be explained.

1 and 4 show a state in which the upper and lower contact members are retracted. In this state, an upper gap is formed between the movable wall 5 and the ceiling surface C, and a lower gap is formed between the movable wall 5 and the floor surface F, and the movable wall 5 is connected to the ceiling rail 1. It is possible to move along the

After moving the movable wall 5 to the desired position, the operating shaft 87
When rotated manually or electrically, the rotational motion is transmitted to the retainer 85 via the small force/bevel gear 90 and eight large bevel gears, and the planetary gear 86 held by the retainer 85 revolves.

At this time, if the loads acting on the upper and lower lifting shafts 6.7 are the same, the planetary gear 86 will not rotate and the paired bevel gears 81, 82 will rotate at the same speed. Rotate. As a result, the upper and lower feed nuts 83.84 rotate at the same speed, and the upper and lower lifting shafts 6.7 screwed into these nuts 83.84 move in the projecting direction at the same speed. (See Figure 6). Then, the upper and lower writing contact members 54
．． When one of the contact members 54 (55) comes into contact with the ceiling surface C or the floor surface F first, the protruding operation of the one close contact member 54 (55) stops, and the planetary gear 86 rotates on its axis in addition to revolution. , the protrusion movement of the other close contact member 55 (54) is accelerated. When the operation is continued after both the close contact members 54.55 come into contact with the ceiling surface C and the floor surface F, the upper and lower close contact members 54.55 are evenly spaced due to the appropriate revolution and rotation of the planetary gear 86. It is pressed against the ceiling surface C and the floor surface F with such force. In this embodiment, since both the lifting shafts 6.7 are urged downward by gravity, the force required to make the upper lifting shaft 6 protrude is greater than that of the lower lifting shaft. The force is greater than the force required to make 7 protrude downward.

Therefore, when the operating shaft 87 is rotated, the planetary gear 86 rotates and revolves from the beginning, and the lower elevating shaft 7 first projects downward. Then, when the draft contacting member 55 comes into contact with the floor surface F and the force required to project the elevating shaft 7 increases, the upper elevating shaft 6 starts to protrude upward. Finally, it becomes possible to press both the contact members 54 and 55 evenly against the ceiling surface C and the floor surface F.

Note that the close contact member is, of course, not limited to those of the embodiments described above; for example, as shown in FIG.
- Shielding plate part 154 a 1 on the side and shielding plate part 1 on the other side
54a2 may be integrally connected via the horizontal plate portion 154b.

Furthermore, the movable wall may be driven by a motor so that it can move by itself.

Furthermore, it goes without saying that the lifting shaft may be biased upward by a spring to offset the influence of gravity.

[Effects of the Invention] Since the present invention has the above configuration, the rotational motion applied to the operation shaft is differentially distributed and transmitted to the upper and lower lifting shafts, and the rotational movement applied to the operating shaft is transmitted to the upper and lower lifting shafts. The upper and lower contact members can be moved to protrude and retract. Therefore, even if the upper gap and the lower gap are set to different values, the upper and lower contact members can be pressed evenly against the ceiling surface and the floor surface without difficulty. Therefore, it is possible to maintain the sound insulation performance and the light shielding performance at high values.

[Brief explanation of drawings]

1 to 6 show one embodiment of the present invention, FIG. 1 is a partially omitted front view, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a close-contact member. 4 is a cross-sectional view showing the close contact member, FIG. 5 is an enlarged sectional view showing the elevating shaft drive mechanism, and FIG. 6 is an explanatory diagram showing the operation of the same portion. FIG. 7 is a cross-sectional view of a close contact member showing another embodiment of the present invention. 1... Ceiling rail 2... Ceiling 3... Traveling body 4... Hanging rod 5... Moving wall
6... Ascending shaft 7... Lower elevating shaft 8... Elevating shaft drive mechanism 54... Upper sound contact member 55... Draft contact member 81
．． 82...Bevel gears 81a, 82a...Boss portions 81b, 82b...Female threads 83.84...Feed nut 85...Retainer 86...Planetary gears 87...
・・Operation axis

Claims (1)

[Claims] 1. A ceiling rail, a traveling body, a suspension rod, a moving wall, upper and lower contact members, upper and lower lifting shafts, and a differential gear type lifting shaft drive mechanism. A movable partition device comprising: the movable wall being movably suspended and supported on the ceiling rail via the suspension rod and the running body; The lower contact member is disposed at the upper and lower edges of the movable wall so as to be able to protrude and retract toward the ceiling and floor, and both the lifting shafts have threaded portions at their base ends, and , each of which holds the upper and lower contact members at its distal end and is disposed so as to be movable up and down within the movable wall, and the elevating shaft drive mechanism includes a pair of bevel gears disposed with their axes aligned with each other;
Upper and lower feed nuts that rotate together with each of these bevel gears, a retainer that is rotatably disposed outside of these bevel gears, and a planetary gear that is rotatably attached to this retainer and meshes with both of the bevel gears. and configured to convert rotational motion introduced from the operating shaft into rotation of the retainer, and to screw the threaded portion of the lifting shaft back and forth by rotation of each of the feed nuts. A movable partition device characterized by: 2. The movable partition device according to claim 1, wherein the operating shaft is configured to be rotated electrically. 3. The movable partition device according to claim 1, wherein the operating shaft is configured to be rotatable manually. 4. The movable partition device according to claim 1, wherein the bevel gear is provided with a boss portion, and a female thread is carved on the inner periphery of the boss portion to constitute the feed nut.