JPH0418113B2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a movable wall hanging wheel (hereinafter referred to as a hanging wheel), and particularly relates to a hanging wheel for smooth movement at orthogonal sections (intersections) of hanger rails, which are the running track of the hanging wheel. The present invention relates to a movable wall hanging wheel that can be moved and has a high degree of freedom in controlling the direction of travel.

``Prior art'' This type of hanging wheel is, for example,
The one disclosed in Publication No. 145879 is known.

FIGS. 7a and 7b show a running state of an example of the above-mentioned conventional hanging wheel (a state in which the hanging wheel approaches a part perpendicular to the hanger rail).

In the figure, reference numeral 1 denotes a hanging wheel body, which has a vertical movable wall hanging shaft 2 (a shaft for hanging the movable wall downward) below the center, and two vertical wheels 3a on each of the four sides, front, back, left and right. , 3a, 3b, 3b, 3c, 3c, 3
d and 3d rotatably. Reference numeral 4 denotes a hanger rail installed on the ceiling, which intersects perpendicularly at the intersection shown in the figure.

However, in FIG. 7a, these hanger rails are shown cut along the horizontal plane at the center, and the running plate 4a at the bottom is shown.
As shown in FIG. 7b, the actual product consists of the lower running plates 4a, 4a, the following vertical side wall 4b, the horizontal upper wall 4c connecting the side walls at the upper end, and the center of the lower surface of the upper wall 4c. The vertical wheels 3a, 3b or 3c, 3 have a substantially C-shaped cross section with a hanger rail 4d provided continuously in the longitudinal direction.
d comes into rolling contact with the upper surface (running surface) of the running plate 4a, so that the hanging wheel main body 1 runs on the hanger rail with the movable wall suspended.

Reference numeral 5 denotes a groove continuous in the rail axis direction on an arcuate cross section formed on the upper surface of the running plate 4a, for example, as indicated by the arrow X.
This is to prevent the vertical wheels 3a and 3b located perpendicular to the running direction shown by from coming into contact with and interfering with the upper surface of the running plate 4a.

Four guide rollers 6 are provided on the upper surface of the suspension wheel body 1.
a, 6b, 6c, and 6d are arranged at regular intervals, respectively, and as shown in FIG. 4d to maintain the straight line.

When the hanging wheel main body 1 moves straight in the direction of arrow X, for example, and reaches the orthogonal part shown in FIG. The lower shaft 2 passes through the groove), and the load applied to the hanging shaft 2 causes the hanging wheel body 1 to tilt.
When the hanging wheel continues to move forward, the wheel 3a that has fallen off at the cut E collides with the traveling plate, giving an impact to the hanging wheel and the moving wall. When the hanging wheel moves further forward and reaches the center of the orthogonal part of the hanger rail as shown in FIG.
As a result, all the vertical wheels 3a to 3d fit into the arc-shaped grooves 5 in the longitudinal and lateral directions, and the suspension wheel body 1 moves downward by the depth of the grooves 5, temporarily halting the movement of the suspension wheel. Stop at.

Therefore, if a force is applied to the suspended wheel main body 1 in any direction in the front, back, left, or right direction at this central position, the suspended wheel main body 1 will begin to move in that direction, making it possible to change the running direction to any desired direction.

``Problems with the prior art'' However, as mentioned above, this kind of hanging wheel can freely change the direction of travel and has extremely high practicality, and during normal travel, it receives the load of the moving wall with a large number of vertical wheels. It has the advantage of having a strong suspension force, but as mentioned above, when the hanging wheel reaches the orthogonal part of the hanger rail, the front wheel passes through the cut in the hanger rail, and the hanging wheel body becomes cantilevered. There is a problem in that the front wheel collides with the hanger rail and receives a shock when the hanging wheel moves forward in this state. In addition, as mentioned above, all the vertical wheels of the hanging wheel fit into the groove 5 at the center of the orthogonal part of the hanger rail. When starting the suspended vehicle, the vertical wheels in the traveling direction must escape from the groove shown in FIG. 7b and ride on the upper surface (travel surface) of the traveling plate 4a. The depth of this groove 5 is such that the vertical wheels 3a, 3b perpendicular to the traveling direction of the hanging wheel, which swings slightly left and right while traveling straight, are attached to the running plate 4.
It is necessary to have a somewhat deep rounded surface so as not to interfere with the upper surface of a, and since the vertical load acting on one hanging wheel usually ranges from 100 kg to several tons, the vertical wheel will overcome the groove 5 and escape. Therefore, there will be a huge amount of resistance.

In addition, in the case of a movable wall, in order to move it, it is not possible to directly push the hanging wheel stored in the ceiling; instead, by pushing the movable wall hanging from the hanging wheel, the hanging wheel can be moved via the hanging shaft. Since the hanging wheel is to be moved, if the resistance due to the groove 5 as described above is large, it may become practically impossible to move the hanging wheel from the part orthogonal to the hanger rail.

``Object of the Invention'' Therefore, the object of the present invention is to provide a structure that allows a hanging vehicle to cross a break in a hanger rail without receiving an impact even at the center of the orthogonal part of the hanger rail, and to be able to start with a small force. The goal is to achieve smooth running conditions.

"Structure of the Invention" The main means adopted by the present invention to achieve the above object is that one or more vertical wheels are arranged on the same horizontal plane on each of the four sides of a suspension wheel body having a substantially right-angled hexahedral shape. At the same time, a groove having a generally arcuate cross section in which the vertical wheel is fitted is formed in the running surface of the orthogonal part of the hanger rail on which the vertical wheel contacts, and a cross-shaped groove in plan view is formed on the upper surface of the hanging wheel body. A ball is rotatably provided on the top plate at the center of the orthogonal part of the hanger rail to interfere with the cross-shaped groove and roll to regulate the running direction of the hanging wheel body. A plurality of groups of balls are arranged in a circle at the four corners of the lower part of the suspension wheel body and are rotatable in a horizontal plane. When the mounting height is adjusted such that the vertical wheel is fitted into the groove having an arcuate cross section and the hanging wheel main body is moved downward from the normal running position, the lower surface of the ball group may roll into contact with the running surface of the orthogonal part of the hanger rail. This is the point made with the height.

“Example” Next, we will explain the first example embodying the present invention.
This will be explained with reference to the accompanying drawings shown in FIGS.

Here, FIG. 1 is a front view (the rail is shown in cross section) showing a running state of a hanging wheel according to an embodiment of the present invention near the center of the orthogonal part of the hanger rail, and FIGS. 2 and 3 are bottom views of the hanging wheel. FIG. 4 is a sectional view taken along the line A-A in FIG. 2, and FIG. 5 is a plan view showing the running state of the hanging wheel at the orthogonal section of the hanger rail. , FIG. 6 is a perspective view of a direction regulating plate that can be used in the above embodiment.

In FIGS. 1 to 4, 10 is a suspension wheel body having a substantially right-angled hexahedral shape, and its four side surfaces 11a, 11
b, 11c, 11d each have two vertical wheels 12a,
12b, 12c, and 12d are rotatably provided.

The above-mentioned vertical wheels 12a to 12d are mounted symmetrically in the front and back at a height that allows them to contact the traveling plate 4a of the hanger rail 4 (FIG. 1), which is all on the same horizontal plane.

As shown in the figure, a hanging shaft 18 is fitted and suspended on the vertical central axis of the hanging wheel main body 10. This suspension shaft 18 has a bolt portion (not shown) carved at the lower end for suspending the movable wall. Auxiliary wheels 20 are attached to four corners of the upper surface of the suspended wheel main body 10 via vertical shafts 23, respectively.

As shown in FIG. 4, at the four corners of the hanging wheel body 10,
As shown in the fourth figure, a group of four balls 2 constituted by a plurality of rotatable balls 21 arranged in a circular shape.
1' are built-in, and the lower surfaces of these balls 21 are exposed downward from the lower surface of the suspension wheel 10.

The balls 21 are in rolling contact with the lower surfaces of four support rings 22 built into the suspension wheel body 10, and are held at a constant height by a retainer 23a to prevent them from falling. This retainer 23a is held on the suspension wheel body 10 by a holding bolt 24.

All of the balls 21 are held at the same height, and the height is such that the hanging wheel main body 10 partially or completely fits into the groove 5 at the orthogonal part of the hanger rail (see FIGS. 1 and 5). , suspension wheel body 1
The height position is set to such an extent that when the ball 21 falls (moves) downward from the running position in the normal straight running state, the lower surface of the ball 21 can roll into contact with the running plate 4a at the part perpendicular to the hanger rail.

A cylindrical protrusion 25 is formed at the center of the upper surface of the hanging wheel main body 10, and the head 18a (not shown) of the suspension shaft 18 is housed in the protrusion 25.

The head accommodation hole 26 that accommodates this head is
As shown in FIGS. 4 and 6, it has a horizontal large-diameter groove 27 in the middle part, and a vertical notch 28 having the same depth as the large-diameter groove 27 in the upper end thereof.
There are four pieces arranged at 90 degrees. Further, a cross groove 29 having an arcuate cross section is formed on the upper surface of the protrusion 25 .

Lid 3 fitted into the upper hole of the head accommodation hole 26
As shown in FIG. 6, 0 has a substantially disk shape having an outer diameter approximately equal to the inner diameter of the head accommodation hole 26, and has a large diameter groove at its lower end with a shape that can fit into the notch groove 28. Protrusion 31 that can fit into 27
radially spaced at 90°. Also this lid 3
A cross-sectional groove 32 having the same cross-sectional shape as the cross-sectional shape of the cross-shaped groove 29 is formed on the upper surface of the cross-shaped groove 29 .

The protrusion 31 and the cross groove 32 are on the same phase angle about the vertical center line, and the notch groove 2
8 and the cross groove 29 are out of phase by 45 degrees.

33 is a hole for inserting a tool for rotating the lid 30 around the vertical axis, and 34 is a hole carved horizontally in the protrusion 25 to fix the lid 30 attached to the head accommodation hole 26. This is a lock screw that is screwed into the screw hole 35 that has been formed.

Therefore, when the lid 30 shown in FIG. 6 is rotated 45 degrees around the vertical axis from the illustrated position, the protrusion 31 can be engaged with the notch groove 28,
When the lid 30 is lowered into the head accommodating hole 26 in this engaged state, the protrusion 31 will eventually move into the large diameter groove 2.
7 and cannot go down any further.
Next, when the lid 30 is rotated by 45 degrees relative to the protrusion 25, the protrusion 31 is separated from the notch groove 28, so that the lid 30 is fixed to the protrusion 25 in the vertical direction and , the cross grooves 32 and 29 are connected as a series of grooves. At this mounting position, the lid 30 is fixed to the protrusion 25 using the lock screw 34.

In this way, by closing the upper opening of the head accommodation hole 26 with the lid 30, the suspension shaft 18 is attached to the suspension wheel body 10.
It is fixed in the vertical direction. However, the hanging shaft 18
can rotate around its axis.

The above-mentioned hanger rail 4 is shown in FIGS. 1 and 3.
As shown in the figure, the upper wall 4c has a roughly C-shaped cross section and is to be attached to a structural member in the ceiling, the vertical side walls 4b are connected downward from the left and right ends of the upper wall 4c, and the vertical wheels 12a to 12d form running tracks. It is composed of left and right running plates 4a, 4a having the running surface on the upper surface.

Therefore, for example, in the state shown in FIG. 3, when the hanging wheel main body 10 runs straight along the hanger rail 4, the vertical wheels 12c, which are parallel to the running direction,
12d comes into rolling contact with the running surfaces of the running plates 4a, 4a, and the load applied to the hanging wheel body 10 via the hanging shaft 18 is supported by these four wheels.
Vertical wheels 12a, 12b perpendicular to the running direction
are all located on the groove 5 and away from the running plate 4a. Therefore, these vertical wheels running perpendicular to the running direction do not interfere with the banger rail 4, and the hanging wheel body 10 can run smoothly in the direction perpendicular to the plane of the paper in FIG. 3. At this time, ball 2
1 is located above the running plate 4a and is not in contact with the running plate 4a.

Next, with reference to FIGS. 1 and 5, the structure of the orthogonal part of the hanger rail and the running state of the hanging wheel in this part will be explained.

As shown in FIG. 1, the hanger rails 4 are orthogonally connected in a cross shape around a top plate 39 attached to a structure in the attic.

A female thread 40 is vertically formed in the center of the top plate 39, and a ball holding cylinder 41 is screwed onto this thread. The ball holding cylinder 41 has a substantially cylindrical shape, and its lower end is formed with a small diameter to prevent the direction regulating ball 42 housed therein from falling.

A cover plate 44 screwed onto a female thread 43 formed at the upper end of the inner cylinder part of the ball holding cylinder 41 is connected to the direction regulating ball 42.
This is for rotatably holding the direction regulating ball 42 in a fixed position while preventing it from escaping from the ball holding cylinder 41.

Therefore, when the hanging wheel main body 10 is running on the straight part of the hanger rail 4 as shown in FIG. They do not touch each other, and there is a slight gap between them.

Before the hanging wheel main body 10 reaches the center of the orthogonal part of the hanger rail, the vertical wheel on the front side in the traveling direction reaches the cut E (FIG. 5a) of the hanger rail, but at this time, some of the balls 21, 21, . . . crosses the cut E and transfers to the front traveling plate 4a to support the load of the hanging wheel that is about to become cantilevered, thereby avoiding inconveniences such as the hanging wheel tilting.

When the hanging wheel main body 10 eventually arrives at the orthogonal part of the hanger rail, the vertical wheels 12c and 12d that had been rolling on the running plate 4a of the hanger rail 4 fall slightly into the groove 5, and as the hanging wheel main body 10 descends, Therefore, the balls 21 come into contact with the upper surfaces of the traveling plates 4a, 4a, and the balls 21 support the load of the movable wall applied to the hanging wheel main body 10. At this time, groove 5
Since there is a slight gap between the vertical wheels 12c, 12d fitted inside and the groove 5, the load of the moving wall does not act on the running plate 4a,
Due to this slight fall of the vertical wheels 12c and 12d, all the vertical wheels fall into the groove 5 and resistance is applied to their movement in the front, back, left and right directions, and the operator is able to bring the hanging wheel main body 10 to the center of the orthogonal part. can sense that.

FIG. 5 shows the state of contact between the ball 21 and the running plate 4a when the hanging wheel body 10 comes to the center of the hanger rail orthogonal section.

In the straight section where the hanger rails 4 do not intersect, the auxiliary wheels 20 touch the vertical side walls 4 as shown in FIG.
Since the hanging wheel is guided in the straight direction by coming into contact with the wall surface of b, the traveling direction of the hanging wheel is stabilized. However, at the orthogonal part of the hanger rail 4 as described above, the auxiliary wheels 2
Since there is no vertical side wall 4b in contact with 0, the directionality of the hanging wheel becomes extremely unstable.

The direction regulating ball 42 and the cross grooves 29, 32
is for this purpose. When the hanging wheel approaches the orthogonal part of the hanger rail, the top plate 3 of the hanger rail
The direction regulating ball 42 provided at 9 fits into the cross groove 29 to 32 as shown in the first figure. This maintains the straightness of the hanging wheel and guides the hanging wheel to the center of the hanger rail. In order for the eight vertical wheels of the hanging wheel to simultaneously fit into the groove 5 at the orthogonal part of the hanger rail, and to run in the correct direction (toward the center of the hanger rail) without hitting the vertical side wall 4b of the hanger rail when restarting from the orthogonal part. For this purpose, it is necessary that the hanging wheel is accurately guided to the center of the orthogonal section of the hanger rail, and that the hanging wheel is correctly oriented in the axial direction of the hanger rail. Therefore, the direction regulating ball 42 and the cross groove 29 on the hanging wheel side,
The function of regulating the direction of the hanging wheel through the interference of No. 32 is important.

When the hanging wheel comes to the center of the orthogonal section of the hanger rail and stops with all its vertical wheels stuck in the groove 5, it can start moving again in any of the four orthogonal directions from there. At this time as well, the direction regulating ball 42 can roll in any direction from the center of the orthogonal cross grooves 32, so that the hanging wheel can be accurately moved straight and guided to the center of the hanger rail.

In addition, when the hanging vehicle restarts from the center of the hanger rail orthogonal section, the vertical wheels will overcome the groove 5 of the running plate 4a, and the operator will feel some resistance, but most of the load on the moving wall will be carried by the above-mentioned. In addition, since the vertical wheels 12a to 12d do not completely fit into the groove 5, they can escape from the groove 5 very easily. .

"Effects of the Invention" As described above, the present invention provides a hanger in which one or more vertical wheels are attached to each of the four sides of a suspension wheel body having a substantially right-angled hexahedral shape at a height in contact with the same horizontal plane, and the vertical wheels are in rotational contact with each other. A groove having a substantially arcuate cross section into which the vertical wheel is fitted is formed on the running surface of the orthogonal part of the rail, and a cross-shaped groove in plan view is formed on the upper surface of the hanging wheel body, and a groove is formed in the center of the orthogonal part of the hanger rail. Balls are rotatably provided on the top plate of the suspension wheel and rotate by interfering with the cross-shaped groove to regulate the running direction of the suspension wheel body, and are further arranged in a circle at the four lower corners of the suspension wheel body. Each has a built-in group of balls that can rotate freely in a horizontal plane,
The lower surface of this group of balls is exposed from the lower surface of the suspension wheel body, and the mounting height of these ball groups is such that the vertical wheel is fitted into the groove having an arcuate cross section and the suspension wheel body is moved downward from its normal running position. In this case, since the movable wall hanger is characterized in that the lower surface of the group of balls is set at a height such that it can come into contact with the running surface of the orthogonal part of the hanger rail, the vertical wheels at the orthogonal part of the hanger rail are It is possible to maintain an extremely smooth running condition without falling into the cutout (notch), and it is also possible to change the running direction extremely smoothly and freely in any of the four orthogonal directions. , which dramatically improves the degree of freedom in transporting and arranging the movable wall.

[Brief explanation of drawings]

FIG. 1 is a front view (the rail is shown in cross section) showing a running state of a hanging wheel according to an embodiment of the present invention near the center of the orthogonal section of the hanger rail, and FIGS. 2 and 3 are bottom views of the hanging wheel and FIG. 4 is a front view showing the running state of the hanger rail at the straight section; FIG. 4 is a sectional view taken along the line A-A in FIG. 2; FIG. FIG. 6 is a perspective view of a direction regulating plate that can be used in the above embodiment, and FIGS. 7a and 7b are a perspective view and a front view of a conventional hanging wheel. Explanation of symbols, 10... Hanging wheel body, 12a-12
d... Vertical wheel, 4... Hanger rail, 5...
Groove, 4a... Running plate, 18... Hanging shaft, 20...
Auxiliary wheel, 21...Ball, 42...Direction regulating ball, 21'...Ball group, 29, 32...Cross groove.

Claims (1)

[Scope of Claims] 1. One or more vertical wheels are attached to each of the four sides of a substantially right-angled hexahedral hanging wheel body at a height that touches the same horizontal plane, and the running surface of the orthogonal part of the hanger rail with which the vertical wheels come into rolling contact. A groove having a substantially arc-shaped cross section is formed into which the vertical wheel is inserted, a cross-shaped groove is formed in a plan view on the upper surface of the hanging wheel body, and a cross-shaped groove is formed in the top plate at the center of the orthogonal part of the hanger rail. A plurality of balls are rotatably provided that roll by interfering with the grooves of the suspension wheel to regulate the running direction of the suspension wheel body, and a plurality of balls are arranged in a circle at the lower four corners of the suspension wheel body and are rotatable in a horizontal plane. The lower surface of each ball group is exposed from the lower surface of the suspension wheel body, and the mounting height of these ball groups is set such that the vertical wheel is fitted into the groove having an arcuate cross section and the suspension wheel body is installed. A hanging wheel for a movable wall, characterized in that the height is such that the lower surface of the group of balls rolls into contact with the running surface of the orthogonal part of the hanger rail when moving downward from the normal running position.