JP6898204B2 - partition - Google Patents

Description

The present invention relates to partitions.

Conventionally, as shown in Patent Document 1 below, a plurality of panels capable of changing their positions between a folded state and an unfolded state, and a group of casters provided at the lower ends of the plurality of panels have been used. The partition provided is known. Each caster has a shaft and wheels, and the wheels can rotate around the central axis of the shaft while rotating with respect to the floor surface. When moving the partition, the casters turn around the central axis of the shaft, so that the moving direction can be changed smoothly.

Special Table 2013-525638

In this type of partition, many casters may be provided on a plurality of panels in order to stabilize the posture of the panels in the deployed state. However, if the number of casters is large, the casters may interfere with each other and lock when the panel is folded, which hinders the turning of the wheels and reduces the operability when moving the partition in the folded state of the panel. was there.

The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a partition capable of ensuring operability when moving in a panel folded state even when many casters are provided.

In order to solve the above problems, the partition according to the first aspect of the present invention is between a folded state in which the panel surfaces face each other and an unfolded state in which the angle formed by the panel surfaces is widened from the folded state. A plurality of panels whose positions can be changed and a group of casters composed of three or more casters provided at the lower ends of the plurality of panels are provided, and the caster group is provided in the folded state. A caster set consisting of two adjacent casters is included, and the casters included in the caster group are provided with a shaft extending in the vertical direction and a shaft rotatably around a wheel axis and swivel around a central axis of the shaft, respectively. The wheel axis is located away from the central axis, passes through the central axis, and is positioned with a virtual line parallel to the wheel axis as a boundary in a top view. The side to be used is the first region, the side where the wheel shaft is not located is the second region, and the distance from the central axis in the portion of the wheel located in the first region and farthest from the central axis is D1. Let D2 be the distance from the central axis in the portion of the wheel located in the second region and farthest from the central axis, and the central axes of the two casters included in the same caster set. When the distance between them is L1 and the distance between the central axes of two casters not included in the same caster set is L2, D1 + D2 <L1 <2 × D1 and 2 × D1 <L2 are satisfied. ..

According to the first aspect, by satisfying 2 × D1 <L2, it is possible to prevent the casters included in different caster sets from interfering with each other when the partition is moved with the panel in the folded state. Further, by satisfying D1 + D2 <L1 <2 × D1, the two casters can be arranged close to each other while suppressing the two casters included in the same caster set from interfering with each other and locking each other. Therefore, even when many casters are provided, it is possible to prevent the casters from locking each other and ensure operability when moving the partition.

Here, the caster group includes four or more casters, and in the top view, the direction in which the plurality of panels extend in the folded state is defined as the panel width direction, and the direction orthogonal to the panel width direction is defined as the panel width direction. In the orthogonal direction, in the folded state, one of the casters included in one of the two caster sets adjacent in the panel width direction is one end portion of the plurality of panels in the panel width direction. One of the casters included in the other caster set may be located at the other end of the plurality of panels in the panel width direction.

In this case, in the folded state, two sets of casters adjacent to each other in the panel width direction are located at both ends of the plurality of panels in the panel width direction, and the stability of the posture of the panel in the folded state can be improved.

Further, in the top view, when the direction in which the plurality of panels extend in the folded state is the panel width direction and the direction orthogonal to the panel width direction is the orthogonal direction, the two casters included in the same caster set are , The hinges provided on the two adjacent panels in the orthogonal direction and oscillatingly connecting the two panels to each other are located on the opposite side of the panel width direction from the side on which the two casters are arranged. You may be.

In this case, when two adjacent panels are deployed in the orthogonal direction, the two casters belonging to the same caster set are greatly separated from each other, so that the stability of the posture of the panels in the deployed state can be improved.

According to the present invention, it is possible to provide a partition capable of ensuring operability at the time of movement even when many casters are provided.

It is a perspective view in the expanded state of the partition which concerns on this embodiment. It is a top view of the partition of FIG. It is a front view of the partition of FIG. It is the top view of the partition in the folded state. (A) is a top view of the vicinity of the swing support portion of FIG. (B) is a front view of (a). (A) is a top view of the caster. (B) is a side view of the caster. It is the top view which showed the position of each caster in a folded state.

Hereinafter, the partition of the present embodiment will be described with reference to the drawings. In the drawings used in the following description, in order to make the features easier to understand, the featured parts may be enlarged for convenience, and the dimensional ratios of each component may not be the same as the actual ones. Absent. Further, the present invention is not limited to the following embodiments.

As shown in FIG. 1, the partition 1 is connected to the base 10 via a base 10 provided with a plurality of base casters (running bodies) 50, a support column 20 erected on the base 10, and a support column 20. The panel group 30 is provided. The panel group 30 is configured so that the position with respect to the base 10 can be changed between the unfolded state shown in FIGS. 1 to 3 and the folded state shown in FIGS. 4 and 7. The panel group 30 includes a first panel 40A connected to the support column 20, a second panel 40B connected to the first panel 40A, and a plurality of sub-panels 40C to 40G connected to the second panel 40B. I'm out. Each panel 40A to 40G has a plate shape. The folded state is a state in which the panel surfaces (surfaces of the panel main body 42) of the panels 40A to 40G face each other, and the unfolded state is a state in which the angle formed by the panel surfaces is widened from the folded state.

(Direction definition)
Here, in the present embodiment, the XYZ Cartesian coordinate system is set and the positional relationship of each configuration will be described. The direction in which the Z axis extends is the vertical direction. The direction in which the Y-axis extends (panel width direction) is the direction in which each panel 40A to 40G extends in a top view when the panel group 30 is folded (see FIG. 4). The direction in which the X-axis extends (orthogonal direction) is a direction orthogonal to both the panel width direction and the vertical direction. Hereinafter, one side in the panel width direction is simply referred to as a + Y side, and the other side in the panel width direction is simply referred to as a −Y side. Similarly, one side in the orthogonal direction is simply referred to as the + X side, and the other side in the orthogonal direction is simply referred to as the −X side.
In the following description, when the panel group 30 is deployed, the state in which the end portion of the panel group 30 on the −X side is farthest from the base 10 in the orthogonal direction is referred to as a “deployed state”. That is, the expanded state in the following description means the state in which each panel 40A to 40G is most opened.

(Foundation)
As shown in FIGS. 1 and 2, the base 10 includes a vertical beam portion 11 extending in the panel width direction and a pair of horizontal beam portions 12 arranged at both ends of the vertical beam portion 11 in the panel width direction. ing. The vertical beam portion 11 is formed in a plate shape with the front and back surfaces facing in the vertical direction. In top view, the vertical beam portion 11 is formed in a rectangular shape in which the length in the panel width direction is larger than the length in the orthogonal direction. The length of the vertical beam portion 11 in the panel width direction is larger than the width of each of the panels 40A to 40C in the folded state in the panel width direction. Each of the pair of cross beam portions 12 extends toward both the + X side and the −X side with both end portions of the vertical beam portion 11 in the panel width direction as base points. Each of the panels 40A to 40G in the folded state is located between the pair of cross beam portions 12 in the top view (see FIG. 4).

Base casters 50 that movably support the base 10 are attached to the lower surfaces of both ends of the pair of cross beam portions 12 in the orthogonal direction. The base caster 50 has a lock mechanism that regulates the running of the base caster 50 with respect to the floor surface. In addition, instead of the caster 50 for the base, another traveling body such as a door roller may be provided on the base 10.
In the unfolded state, each of the panels 40A to 40G is in a state of being easily tilted in the panel width direction. The base 10 is a member having a relatively large mass in order to prevent the panels 40A to 40G from collapsing.

(Strut)
The support column 20 is erected at the center of the vertical beam portion 11 in the panel width direction. The support column 20 is formed in a plate shape with the front and back surfaces facing the panel width direction. The columns 20 support the panels 40A to 40G and have a role of preventing the panels 40A to 40G from falling over. Therefore, the support column 20 is also a member having a relatively large mass like the base 10.

As shown in FIG. 1, an operation unit 60 is provided on an end face of the support column 20 facing the + X side. The operation unit 60 is a portion that the user grips and pushes or pulls when moving the partition 1. The operation unit 60 has a grip portion 61 extending in the vertical direction and a pair of connecting portions 62 extending from both upper and lower ends of the grip portion 61 to the −X side, and is formed in a C shape when viewed from the panel width direction. ing. The grip portion 61 is located on the + X side of the vertical beam portion 11. The connecting portion 62 connects the grip portion 61 to the support column 20.

As shown in FIG. 4, a contact member 26 is provided on the end face of the support column 20 facing the −X side. The abutting member 26 includes a fixing portion 26a fixed to the support column 20, an abutting portion 26c that abuts the first panel 40A in a folded state, and a connecting portion 26b that connects the fixing portion 26a and the abutting portion 26c to each other. It is formed in a Z shape when viewed from above. The abutting member 26 is a bent plate-shaped member, and the front and back surfaces of the fixing portion 26a and the abutting portion 26c face in the orthogonal direction, and the front and back surfaces of the connecting portion 26b face the panel width direction.

As shown in FIG. 1, offset members 21 are provided at the upper end and the lower end of the support column 20, respectively. The pair of offset members 21 extend from the end faces of the columns 20 facing the −Y side toward the −Y side. A swing support portion 22 is provided at each end of the pair of offset members 21 on the −Y side. The pair of swing support portions 22 are fixed to the base 10 via the offset member 21 and the support column 20. The pair of swing support portions 22 are arranged so as to sandwich the first panel 40A in the vertical direction.

(Swing support)
The pair of rocking support portions 22 have the same configuration as each other. Hereinafter, the configuration of the upper rocking support portion 22 will be described on behalf of the pair of rocking support portions 22. As shown in FIG. 5B, a recess 22a that is recessed upward is formed on the lower surface of the upper rocking support portion 22. The recess 22a is formed from the end portion of the rocking support portion 22 on the −X side to the central portion of the rocking support portion 22 in the orthogonal direction. As shown in FIG. 5A, at least a part of the inner surface of the recess 22a is an inclined surface 22b that faces the −Y side and gradually extends toward the −X side toward the + Y side. The swing support portion 22 is provided with a pin P extending in the vertical direction. At least a part of the pin P is located in the recess 22a, and the lower end of the pin P is loosely fitted in a hole (not shown) of the first panel 40A. With this configuration, the swing support portion 22 supports the first panel 40A so as to be swingable.

Further, in FIG. 5A, the first panel 40A in the unfolded state is shown by a solid line, and the first panel 40A in the folded state is shown by a two-dot chain line. As shown by the solid line in FIG. 5A, when the first panel 40A is in the deployed state, the upper frame 43 described later of the first panel 40A comes into contact with the inclined surface 22b. With this configuration, swinging of the first panel 40A with respect to the base 10 by a predetermined amount or more is regulated.

As described above, each rocking support portion 22 is formed with a recess 22a that is recessed from the inner end surface in the vertical direction toward the outside in the vertical direction, and at least a part of the inner surface of the recess 22a is on the −Y side. The inclined surface 22b gradually extends toward the −X side as it faces the + Y side. Further, each swing support portion 22 is provided with a pin P extending in the vertical direction, and an inner end portion of the pin P in the vertical direction is loosely fitted in a hole (not shown) of the first panel 40A. With this configuration, the pair of rocking support portions 22 swingably support the first panel 40A.
The configuration of the swing support portion 22 is not limited to the above. For example, the swing support portion 22 may have a hinge or the like that swingably connects the first panel 40A to the offset member 21.

(Panel group)
As shown in FIG. 1, the panels 40A to 40G are connected in a bellows shape and are configured to be deployable in the orthogonal direction. Caster groups 90A to 90E, which will be described later, are provided at the lower ends of the panels 40A to 40G.
The first panel 40A is located on the base 10 side of the panel group 30. The first panel 40A is swingably supported by the swing support portion 22 with respect to the base 10 and the support column 20. The swing support portion 22 supports the end portion on the −Y side of the first panel 40A. The first panel 40A and the second panel 40B, the second panel 40B and the sub-panel 40C, and the sub-panels 40C to 40G are oscillatingly connected to each other by hinges 80A to 80F.

As shown in FIG. 4, in the folded state, the central portions of the panels 40A to 40G and the operation unit 60 in the panel width direction are substantially the same positions in the panel width direction as the central portions of the base 10 in the panel width direction. Is located in. That is, each of the panels 40A to 40G, the operation unit 60, and the central portion of the base 10 in the panel width direction are located on the same straight line C in the top view.

Since each of the panels 40A to 40G has the same configuration, the configuration of the first panel 40A will be described on behalf of these panels 40A to 40G. As shown in FIG. 3, the first panel 40A includes a frame 41 formed in a rectangular frame shape and a panel main body 42 fitted in the frame 41. The frame 41 has an upper frame 43, a pair of vertical frames 44, and a lower frame 45. The upper frame 43 is located above the panel body 42, and the lower frame 45 is located below the panel body 42. The upper frame 43 and the lower frame 45 extend in the panel width direction when the first panel 40A is in the folded state. The pair of vertical frames 44 extend in the vertical direction, and connect both ends of the upper frame 43 and the lower frame 45 in the panel width direction.

As shown in FIG. 1, the sub-panel 40G located on the -X side of the panel group 30 is provided with the sub-operation unit 70. The sub-operation unit 70 has a grip portion 71 extending in the vertical direction, and a pair of connecting portions 72 for connecting the upper and lower ends of the grip portion 71 and the sub-panel 40G. The sub-operation unit 70 may be a component of the same type as the operation unit 60. For example, the panel group 30 can be expanded by grasping the sub-operation unit 70 and pulling it to the −X side in a state where the base 10 is fixed by operating the lock mechanism of the base caster 50 provided on the base 10. it can.

(Caster group)
A caster group including a plurality of casters 90A to 90E is attached to the panel group 30. Since the casters 90A to 90E have similar configurations to each other, the configurations of the casters 90A will be described on behalf of these casters 90A to 90E.

As shown in FIG. 1, the caster 90A has a shaft 91 extending in the vertical direction and wheels 92 provided at the lower end of the shaft 91. The upper end of the shaft 91 of the caster 90A is inserted into a hole (not shown) provided on the lower end surface of the lower frame 45 of the panel 40A. As a result, the caster 90A is attached to the panel 40A. A plurality of holes for inserting the shaft 91 are provided on the lower end surface of the lower frame 45, and the mounting position of the caster 90A can be easily arranged by selecting which hole to insert the shaft 91 into. Can be changed to.

As shown in FIGS. 6A and 6B, in the present embodiment, the central axis extending in the vertical direction of the shaft 91 is referred to as the central axis O. The wheel 92 can turn around the central axis O. Further, the wheel 92 can rotate around the central axis of the wheel 92 (hereinafter, referred to as the wheel axis W1). The wheel shaft W1 is arranged at a position separated by a distance of ΔW from the central axis O of the shaft 91. As described above, when the wheel shaft W1 is eccentric with respect to the central axis O of the shaft 91 and the moving direction of the partition 1 is changed, the wheel 92 turns around the central axis O following the moving direction.

Here, in the present embodiment, as shown in FIG. 6A, when the virtual line W2 parallel to the wheel shaft W1 is drawn through the central axis O in the top view, the wheel shaft is bounded by the virtual line W2. The side where W1 is located is referred to as the first region A1, and the side where the wheel shaft W1 is not located is referred to as the second region A2. Further, among the wheels 92, the distance from the central axis O at the point located in the first region A1 and farthest from the central axis O is represented as D1, and the distance from the central axis O located in the second region A2 is the farthest from the central axis O. The distance from the central axis O at a distant point is represented by D2. Further, in the top view, the arc having a radius D1 centered on the central axis O is represented as a virtual circle R1, and the arc having a radius D2 centered on the central axis O is represented as a virtual circle R2. In the top view, the portion of the wheel 92 located in the first region A1 is inscribed in the virtual circle R1, and the portion located in the second region A2 is inscribed in the virtual circle R2.

Here, the inventor of the present application devises a positional relationship between the central axis O of each caster in the top view so that the wheels 92 do not interfere with each other and lock when the partition 1 is moved in the folded state of the panel. We found that many casters could be installed. Specifically, even if the distance between the central axis O of two adjacent casters is smaller than 2 × D1, these two casters can turn around each central axis O without locking. On the other hand, when the central axis O of two or more other casters is located within a distance of 2 × D1 with respect to the central axis O of one caster, the moving direction of the partition 1 is changed. At that time, the casters may lock each other and hinder the turning of the wheels 92.
Hereinafter, a more detailed description will be given with reference to FIG. 7.

As shown in FIG. 7, in the folded state, the casters 90B and the casters 90C are adjacent to each other to form the first caster set G1. Further, the casters 90D and the casters 90E are adjacent to each other and form a second caster set G2. As described above, the caster group included in the partition 1 includes a plurality of caster sets G1 and G2 composed of two casters adjacent to each other in the folded state. The number of caster sets included in the caster group may be 3 or more. Further, as in the caster 90A shown in FIG. 7, casters that do not form a caster set may be included in the caster group.

Here, in the casters 90B and 90C included in the caster set G1, the arcs R1 overlap each other, but the arcs R2 do not overlap each other. Similarly, in the casters 90D and 90E included in the caster set G2, the arcs R1 overlap each other, but the arcs R2 do not overlap each other. That is, at least two of the plurality of arcs R1 are overlapped, but three or more arcs R1 are not continuously overlapped.
This is because the distance L1 between the central axis O of the two casters included in the same caster set is larger than D1 + D2 and smaller than 2 × D1. This is also because the distance L2 between the central axis O of any two casters included in different caster sets is larger than 2 × D1. That is, it satisfies D1 + D2 <L1 <2 × D1 and 2 × D1 <L2.

When the moving direction of the partition 1 is changed, the wheels 92 of the two casters included in the same caster set try to turn around their respective shafts 91 while keeping the wheel axes W1 substantially parallel to each other. To do. At this time, if D1 + D2 <L1 is satisfied, even if the wheels 92 come into contact with each other, one wheel 92 turns following the direction of the other wheel 92. In this way, the wheels 92 of the two casters can smoothly turn without being locked.

On the other hand, when the distance L2 between the center axis O of the two casters included in the different caster sets is smaller than 2 × D1, one wheel 92 may come into contact with the other two wheels 92 at the same time. Means that. Therefore, when the moving direction of the partition 1 is changed, one wheel 92 comes into contact with the two wheels 92 from different directions, so that the one wheel 92 turns around the central axis O. It may not be possible and may be locked. When such a phenomenon occurs, the moving direction of the partition 1 and the rotating direction of the wheels 92 do not match, and the operability when moving the partition 1 deteriorates. Therefore, it is preferable that the distance L2 between the central axis O of the casters included in the different caster sets is larger than 2 × D1.

As described above, by arranging the casters 90A to 90E so as to satisfy D1 + D2 <L1 and 2 × D1 <L2, it is possible to prevent the caster wheels 92 from being locked and move the partition 1. The operability can be ensured. Further, by satisfying L1 <2 × D2, the casters included in the same caster set can be arranged as close as possible to each other, and many casters can be provided.

Further, in the folded state, of the two caster sets G1 and G2 adjacent to each other in the panel width direction, one caster 90C included in one caster set G1 is located on the −Y side of the straight line C, and the other caster set. One caster 90E included in G2 is located on the + Y side of the straight line C. More specifically, the caster 90C is located at the −Y side end of the panel group 30, and the caster 90E is located at the + Y side end of the panel group 30.
As a result, in the folded state, the two caster sets G1 and G2 adjacent to each other in the panel width direction are located at both ends of the panel group 30 in the panel width direction, and the posture stability of the panel group 30 in the folded state is improved. Can be enhanced.

Further, the casters 90B and 90C included in the caster set G1 are located on the −Y side of the straight line C, and the hinge 80C connecting the panels 40C and 40D provided with the casters 90B and 90C is located on the + Y side. There is. Similarly, the casters 90D and 90E included in the caster set G2 are located on the + Y side of the straight line C, and the hinge 80F connecting the panels 40F and 40G provided with the casters 90D and 90E is located on the −Y side. ing. That is, two casters included in the same caster set are provided on two adjacent panels in the orthogonal direction, and hinges for swingably connecting the two panels to each other are two casters in the panel width direction. Is located on the opposite side of the side where. As a result, when two adjacent panels are deployed in the orthogonal direction, the two casters belonging to the same caster set are greatly separated from each other, so that the stability of the posture of the panels in the deployed state can be improved.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, the partition 1 of the above embodiment includes five sub-panels 40C to 40G, but the number of sub-panels 40C to 40G can be changed as appropriate. For example, four or less or six or more sub-panels 40C may be provided.

Further, in FIG. 7, one caster is provided on one panel, but for example, a plurality of casters may be provided on one panel.
Further, the caster group may include three or more caster sets, or may include zero or two or more casters that do not form the caster set. It is assumed that the caster group includes three or more casters.

Further, the casters 90A to 90E may include components other than the shaft 91 and the wheels 92. For example, the casters 90A to 90E may include a cover body that turns around the central axis O of the shaft 91 together with the wheels 92 and covers the wheels 92. In this case, the wheel shaft W1 and the virtual line W2 should be set with the wheel 92 as a reference, while the dimensions D1 and D2 should be set for the cover body and the like. As a result, the above-mentioned effects can be obtained by satisfying D1 + D2 <L1 <2 × D1 and 2 × D1 <L2.

In addition, it is possible to replace the components in the above-described embodiment with well-known components as appropriate without departing from the spirit of the present invention, and the above-described embodiments and modifications may be appropriately combined.

1 ... Partition 10 ... Base 11 ... Vertical beam 20 ... Support 21 ... Offset member 22 ... Swing support 30 ... Panel group 40A ... First panel 40B ... Second panel 40C ... Sub-panel 60 ... Operation unit 80A-80F ... Hinge 90A-90E ... Caster 91 ... Shaft 92 ... Wheel A1 ... 1st area A2 ... 2nd area O ... Central axis W1 ... Wheel axis W2 ... Virtual line X ... Orthogonal direction Y ... Panel width direction Z ... Vertical direction

Claims (3)

A plurality of panels capable of changing their positions between a folded state in which the panel surfaces face each other and an unfolded state in which the angle formed by the panel surfaces is widened from the folded state.
A group of casters composed of three or more casters provided at the lower ends of the plurality of panels is provided.
The caster group includes a caster set consisting of two adjacent casters in the folded state.
Each of the casters included in the caster group has a shaft extending in the vertical direction and a wheel provided so as to be rotatable around the wheel axis and swivel around the central axis of the shaft.
In top view
The wheel axle is located away from the central axis and
With the virtual line passing through the central axis and parallel to the wheel axis as a boundary, the side where the wheel axis is located is defined as the first region, and the side where the wheel axis is not located is defined as the second region.
The distance from the central axis in the portion of the wheel located in the first region and farthest from the central axis is defined as D1.
The distance from the central axis in the portion of the wheel located in the second region and farthest from the central axis is defined as D2.
Let L1 be the distance between the central axes of the two casters included in the same caster set.
When the distance between the central axes of two casters not included in the same caster set is L2,
A partition that satisfies D1 + D2 <L1 <2 × D1 and 2 × D1 <L2. The caster group includes four or more of the casters.
In the top view, when the direction in which the plurality of panels extend in the folded state is the panel width direction and the direction orthogonal to the panel width direction is the orthogonal direction,
In the folded state, one of the casters included in one of the two caster sets adjacent in the panel width direction is located at one end of the plurality of panels in the panel width direction, and the other. The partition according to claim 1, wherein one of the casters included in the caster set is located at the other end of the plurality of panels in the panel width direction. In the top view, when the direction in which the plurality of panels extend in the folded state is the panel width direction and the direction orthogonal to the panel width direction is the orthogonal direction,
The two casters included in the same caster set are provided on the two adjacent panels in the orthogonal direction, and the hinges that swingably connect the two panels to each other are the two casters in the panel width direction. The partition according to claim 1 or 2, which is located on the opposite side of the side where the is arranged.

Images