JP5099304B2 - Noise prevention device for moving walls - Google Patents

Description

  The present invention relates to a noise prevention device for a moving wall that includes two horizontal wheels provided on both sides of the upper end of the moving wall and suspended from a ceiling rail to suppress noise during movement.

  The partition has a structure in which a panel is installed and fixed at a predetermined position, and a moving wall that can move the place. A moving wall is constructed so that it can be suspended from a ceiling rail and can be moved to partition a large space in a building as needed. I can do it. When partitioning a large space, it is suspended along a ceiling rail and arranged in a straight line, and when stored, a plurality of moving walls are arranged in parallel at a predetermined interval.

  By the way, there are a horizontal wheel type suspension vehicle shown in FIG. 6 (a) and a vertical wheel type suspension vehicle shown in FIG. 6 (b) as suspension vehicles capable of suspending and moving the moving wall on the ceiling rail. The type of suspension vehicle is formed by two horizontal wheels (a) and (a) supported on a suspension bolt shaft (b) at a predetermined interval, and formed in two upper and lower stages of a ceiling rail (c). The running pieces (d) and (d) that are present can be rotated with the outer circumference on them.

  One vertical wheel type suspension vehicle supports vertical wheels (f), (f),... On the front and rear and both sides of a rectangular block body (e). The vertical wheels (f), (f)・ ・ Can be mounted on the running piece (chi) and (chi) of the ceiling rail (g) and rotate. By the way, in the case of the vertical wheel type suspension vehicle, it is possible to move relatively straight, but in the case of a horizontal wheel type suspension vehicle, each horizontal wheel (A), (A) is a ceiling rail (C). When the suspension car reaches the intersection of the ceiling rail (c), there is a part where the side wall (re) does not exist. Shifts sideways. As a result, the sleeve (n) supported by the suspension bolt shaft (b) between the horizontal wheels (a) and (b) hits the corner of the traveling piece (d) and generates an impact sound.

The noise generated when the moving wall moves along the ceiling rail (c) can be divided into the following three types.
(1) Running sound This is the sound when a suspended vehicle moves on a linear ceiling rail, and it is not loud, but it generates noise no matter how small.
(2) Impact sound during direction change The largest noise generated when moving on the wall is generated when the suspension wheel hits the corner of the running piece (d) when the suspension vehicle passes through the intersection. Sound. In the conventional moving wall, various devices are known for smoothly passing the suspension wheel at the intersection. However, the structure is complicated and the manufacturing cost is increased.
(3) Sound per wall The moving wall is stored in a storage section provided at one corner of the room, and is pulled out from the storage section one by one and arranged at a predetermined position. It moves by pressing to. However, sometimes it is pressed with a large force, and as a result, the wall surface is hit with a large impact sound, and sometimes the wall surface is scratched, and the suspension car and the suspension bolt may be damaged.

  Japanese Patent Application Laid-Open No. 64-33383 discloses an “intersection device for a traveling rail for a partition” in which a moving wall is suspended from a traveling rail by a suspension vehicle, the suspension vehicle is a horizontal wheel model, and the traveling rail has a cross section with the wheel bottom facing inward. It is inclined in a triangular shape, and smoothes the direction change of the moving wall at the intersection of the traveling rail.

  “Suspension vehicle for suspending a moving panel” according to Japanese Utility Model Laid-Open No. 7-32163 is a suspension vehicle having two horizontal wheels, where the bottom of the wheel is a curved surface curved in a concave or convex shape, In this case, the inclination rate on the inner peripheral side is increased, the inclination rate on the outer peripheral side is decreased, and on the convex wheel bottom, the inclination rate on the inner peripheral side is decreased and the inclination rate on the outer peripheral side is increased.

  Furthermore, the “moving partition suspension wheel” according to Japanese Utility Model Laid-Open No. 4-59287 has two wheels that are rotatably concentrically supported at a predetermined interval at the upper end of the suspension shaft, It is a suspension car built in a rail laid on the ceiling so as to roll on the traveling surface of the rail piece inclined toward the surface, a resin wheel is formed on the wheel of the suspension car, and the traveling surface of the rail is formed on the outer periphery of the resin wheel. A metal reinforcing ring is provided in the other area excluding the contact area, and the outer diameter of the reinforcing ring is made larger than that of the resin ring.

  Thus, although there are various things related to the suspension vehicle of the moving wall, there is no technology that suppresses noise when passing through the intersection. Although the strength of the wheel is increased by providing a metal reinforcing wheel as in the “moving partition suspension wheel” according to Japanese Utility Model Laid-Open No. 4-59287, noise is further increased by hitting the side wall.

  On the other hand, there is also known a technique in which a moving wall that is drawn out of a storage unit and moves does not hit a wall surface of a room with a large impact. For example, the “moving wall brake device” according to Japanese Patent Laid-Open No. Hei 8-232534, when moving the moving wall, even if it is pressed strongly, it travels away from the hand and exerts a large impact force on the wall surface. This is a moving wall brake device that does not collide with it. Therefore, a friction member is attached to the upper end of the moving wall so as to be movable up and down, and the friction member is urged by a spring force to always push upward, and the friction member is an operation unit provided at the side end of the moving wall. At the same time, it works to press the ceiling rail with spring force.

  In addition, the “traveling control device for moving wall” according to Japanese Patent Laid-Open No. 2003-13662 is a travel that prevents the moving speed from increasing when a large moving wall suspended from a ceiling rail is moved in and out of the storage location. It is a control device. Therefore, a damper having a piston lot that expands and contracts is attached on the ceiling rail, and a slider is pivotally supported via a support member at the tip of the piston lot and the slider swings within a certain range. It is possible to control the running speed by contracting the piston lot with the suspension wheel hitting the tip of the slider.

However, the “moving wall brake device” according to Japanese Patent Laid-Open No. 8-232534 and the “moving wall travel control device” according to Japanese Patent Application Laid-Open No. 2003-13662 have complicated structures, and therefore the production cost is low. It becomes very expensive. Of course, complication of the structure often results in unstable brake operation and travel control operation, and problems other than manufacturing costs remain.
"Intersection device for running rails for partitions" according to Japanese Patent Application Laid-Open No. 64-33383 "Suspension wheel for suspending moving panels" according to Japanese Utility Model Publication No. 7-32163 “Moving partition suspension car” according to Japanese Utility Model Publication No. 4-59287 "Moving wall brake device" according to Japanese Patent Application Laid-Open No. 8-232534 “Movement control device for moving wall” according to Japanese Patent Application Laid-Open No. 2003-13662

  Thus, the moving wall provided with the horizontal wheel type suspension vehicle has the above-described problems. The problem to be solved by the present invention is this problem, and it is possible to suppress the noise caused by the impact hitting the corner when the moving wall passes through the intersection and to occur when it collides with the wall surface. Provided is a moving wall noise prevention device capable of suppressing a large impact sound.

  The suspension wheel attached to the upper end of the moving wall according to the present invention is a horizontal wheel type, and two horizontal wheels are rotatably supported on the suspension bolt shaft at a predetermined interval. The suspension bolt is fitted with an elastic roller made of urethane rubber or other material. The outer diameter of the elastic roller is a size that leaves an appropriate clearance with respect to the guide part of the ceiling rail. Therefore, the horizontal displacement of the suspension vehicle at the intersection is prevented, and even if the lateral deviation occurs, the intersection The elastic roller hits the corner of the guide. The outer diameter dimension is such that the sleeve provided between the horizontal wheels does not hit the corner of the traveling piece. Therefore, there is no large impact, and the generation of noise associated with the impact can be prevented.

  On the other hand, a plate is attached to the inner surface of the guide part of the ceiling rail, and a roller is fitted to the suspension bolt on the upper side or the lower side of the elastic roller. The plate has a certain length and is arranged along the guide portion so as to sandwich the roller. Here, at least one of the plate and the roller has a friction surface, and is configured to be able to generate a friction force by being slightly compressed when the moving wall moves. The plate is provided in front of the wall surface, in front of the L-shaped intersection, or in front of the T-shaped intersection, and functions to act on the moving wall approaching the wall surface or the intersection.

  Here, although the material of the said plate and roller is not specifically limited, urethane rubber is common. Urethane rubber has excellent wear resistance and generates a stable frictional force. The surfaces that contact each other only need to be friction surfaces, and it is possible to have a structure in which a friction material such as urethane rubber is bonded to a metal plate or a hard resin plate. A friction material such as urethane rubber can be coated on the side surface. Furthermore, in the case of a plate, it may be attached to the guide via a spring.

  The suspension vehicle provided on the moving wall of the present invention is fitted between the upper and lower horizontal wheels by fitting an elastic roller or elastic pipe made of urethane rubber or other material to a suspension bolt for suspending the moving wall. The sleeve does not hit the running piece corner of the ceiling rail intersection. In other words, since the outer diameter of the elastic roller has a size that leaves an appropriate clearance with respect to the distance between the guide portions of the ceiling rail, the moving wall can move smoothly along the ceiling rail. A large lateral deviation at the intersection is prevented, and even if the lateral deviation occurs, the elastic roller only hits the guide section corner, and the sleeve does not hit the running piece corner.

  Therefore, it is possible to suppress the generation of impact sound when the suspension vehicle passes through the intersection. The present invention has a simple structure in which an elastic roller such as urethane rubber is fitted to the suspension bolt of the suspension vehicle, its manufacturing cost is low, and the operation can be continued stably for any number of times.

  Also, if the moving wall moves and approaches the wall surface or intersection, the roller fitted in the suspension bolt is sandwiched between the plates provided on the inner surface of the guide part of the ceiling rail, and sliding friction occurs between the plates. Thus, a brake is inevitably applied to the moving wall, and the moving speed decreases. For this reason, the moving wall does not hit the intersecting side walls or the guide portion of the wall surface or the ceiling rail with a large impact, and the collision sound is suppressed. The length of the plate and the outer diameter of the roller must be appropriate. However, since the structure is very simple, the manufacturing cost is low and the operation is always stable.

  FIG. 1 is a front view showing a general moving wall 1. Suspension wheels 2 and 2 are attached to both sides of the upper end of the moving wall 1, and the suspension wheels 2 and 2 and the moving wall 1 are connected by suspension bolts 3 and 3. The suspension vehicle 2 can be freely fitted and moved on a ceiling rail laid on the ceiling, and the moving wall 1 can be suspended through suspension vehicles 2 and 2 and can move along the ceiling rail together with the suspension vehicles 2 and 2. I can do it.

  FIG. 2 shows a section of the moving wall 1 suspended from the ceiling rail 4. The suspension wheel 2 is a horizontal wheel model, and the two horizontal wheels 5 a and 5 b are spaced from the suspension bolt 3 by a predetermined distance. And is pivotally supported. A sleeve 6 is attached between the horizontal wheels 5a and 5b, and the distance between the horizontal wheels 5a and 5b is fixed. The ceiling rail 4 has a running piece 8a on the side wall 7a, and a running piece 8b on the other side wall 7b. The outer periphery of the horizontal wheel 5a rests on the running piece 8a, and the outer circumference of the horizontal wheel 5b runs. It is on the piece 8b.

  Since the traveling surfaces of the traveling pieces 8a and 8b are inclined inward, the lower outer periphery of the horizontal wheels 5a and 5b can rotate in contact with the traveling surface, and the suspension wheel 2 is located at the center of the ceiling rail 4. It becomes like this. Since one horizontal wheel 5a is close to the side wall portion 7a and the other horizontal wheel 5b is close to the side wall portion 7b, the suspension wheel 2 is not displaced laterally but along the ceiling rail 4 that extends straight. Can move.

  The suspension bolt 3 extending downward from the suspension wheel 2 extends downward through a guide space formed between the guide portions 9a and 9b formed as a part of the ceiling rail 4, and the lower end of the suspension bolt 3 is It is fixed to the moving wall 1. Support portions 10a and 10b projecting outward are provided at the lower ends of the guide portions 9a and 9b, and the edges of the ceiling panels 11 and 11 are supported on the support portions 10a and 10b.

  Shield plates 12 and 12 are provided upright on both sides of the suspension bolt 3 on the upper part of the moving wall 1, and the upper ends of the shield plates 12 and 12 are close to the support portions 10a and 10b. Therefore, a certain degree of airtightness and sound insulation can be obtained. Of course, an upper pressure contact member can be provided on the upper portion of the moving wall 1 and a lower pressure contact member can be provided on the lower portion. In this case, the moving wall 1 is fixed in contact with the support portions 10a and 10b of the ceiling rail 4 by raising the upper pressure contact member, and in pressure contact with the floor surface by lowering the lower pressure contact member.

  By the way, the urethane roller 13 which is an elastic roller is fitted to the suspension bolt 3 extending downward from the suspension wheel 2. The urethane roller 13 is supported on a nut 14 screwed into the lower end of the suspension bolt 3 and extends to an intermediate height between the guide portions 9a and 9b. By fitting the urethane roller 13 to the suspension bolt 3, the gap between the guide portions 9 a and 9 b becomes small and the lateral displacement of the suspension wheel 2 can be prevented. For example, in the embodiment shown in FIG. 2, when the distance between the guide portions 9a and 9b is 30 mm, the clearance is 1 mm by setting the outer diameter of the urethane roller 13 to 29 mm.

  FIG. 3 shows a case where the suspension bolt 3 is positioned at the intersection of the ceiling rail 4 and slightly shifted laterally. When the suspension vehicle 2 moves on the linear ceiling rail 4, both horizontal wheels 5 a and 5 b are guided by the side wall portions 7 a and 7 b of the ceiling rail 4, so that a large lateral displacement does not occur. However, if the vehicle reaches the intersection, the side walls 7a and 7b disappear, and the horizontal wheels 5a and 5b become unstable. Then, the sleeve 6 collides with the corners of the traveling pieces 8a and 8b.

  In the present invention, the lateral displacement of the suspension vehicle 2 is suppressed by fitting the urethane roller 13 having a size that leaves a slight clearance between the suspension bolt 2 of the suspension vehicle 2 and the guide portions 9a and 9b. In the figure, reference numeral 19 denotes a corner of the guide portion 9, and the urethane roller 13 contacts the corner 19. In this state, the sleeve 6 does not contact the corner 20 of the traveling piece 8a.

  Even if the urethane roller 13 excellent in elastic deformation hits the corner 19 of the guide portion 9, no large impact is generated, and therefore no large impact sound is generated. There are four corners in the cross-shaped intersection, but the outer diameter is increased so that the sleeve 6 does not hit the traveling piece corner 20 even if the suspension wheel 2 is laterally displaced in any direction. The existing urethane roller 13 hits the guide corner 19. The ceiling rail 4 has a T-shaped intersection and an L-shaped intersection in addition to the cross-shaped intersection, and the same applies to these intersections.

  FIG. 4 shows the noise attenuation effect of the suspension vehicle according to the present invention. The noise before improvement in which the urethane roller 13 is not attached to the suspension bolt 3 is compared with the noise after improvement in which the urethane roller 13 is attached to the suspension bolt 3. It can be seen from the figure that the noise is greatly reduced by attaching the urethane roller 13 that is apparent.

  By the way, plates 15 a and 15 b are attached to the inner side surfaces of the guide portions 9 a and 9 b of the ceiling rail 4, and a roller 16 is fitted to the suspension bolt 3. The roller 16 is attached to the suspension bolt 3 in a state of being placed on the urethane roller 13. Urethane rubber is used as the material of the plates 15a and 15b, and urethane rubber can also be used for the roller 16. Urethane rubber has a high coefficient of friction and excellent wear resistance, and friction is generated when the roller 16 contacts the plates 15a and 15b. Accordingly, the brake acts on the moving speed of the moving wall 1.

  FIG. 5 is a schematic view of the brake mechanism, showing a cross section. Plates 15a and 15b are fixed to the inner side surfaces 17a and 17b of the guide portions 9a and 9b, and a roller 16 is fitted to the suspension bolt 3. This figure shows a state in which the roller 16 is sandwiched between the plates 15a and 15b. The surfaces 18a and 18b of the plates 15a and 15b are slightly depressed, and the roller 16 is also deformed to become elliptical.

  Thus, when the roller 16 contacts the plates 15a and 15b, a frictional force is generated between the plates 15a and 15b when the roller 16 moves. Incidentally, a slight clearance exists between the plate surfaces 18a and 18b and the roller 16. Or it is a state of clearance 0 and is not a minus clearance.

  When the roller 16 enters between the plates 15a and 15b, the moving wall 1 rolls and the roller 16 comes into contact with the plate 15a or the plate 15b. Even if a clearance of 1 mm is provided, it is practically impossible for the roller 16 to pass without contacting the plates 15a and 15b. Of course, even if the roll does not roll, the suspension bolt 3 is slightly tilted due to the deviation of the core, so that the roller 16 comes into contact with the plates 15a and 15b.

  If a negative clearance is provided between the roller 16 and the plates 15a and 15b, excessive friction is generated when the roller 16 enters the plates 15a and 15b, and the moving wall 1 stops at that position. Here, although the magnitude | size of this clearance is not specifically limited, Generally it is set as the clearance of about 0 clearance-2 mm.

  By the way, the plates 15a and 15b are provided in the vicinity of the wall surface, and the moving speed of the moving wall moving toward the wall surface can be reduced. Further, the plates 15a and 15b may be attached before reaching the L-shaped intersection and the T-shaped intersection.

The front view of a movement wall. The longitudinal cross-sectional view which shows the suspending structure of a moving wall. When the suspension vehicle is approaching the cross-shaped intersection of the ceiling rail. Noise attenuation effect of suspension vehicles. Schematic which shows the brake mechanism of a moving wall. In the conventional suspension vehicle, (a) is a horizontal wheel type suspension vehicle, and (b) is a vertical wheel type suspension vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Moving wall 2 Suspension car 3 Suspension bolt 4 Ceiling rail 5 Horizontal wheel 6 Sleeve 7 Side wall part 8 Traveling piece 9 Guide part
10 Support part
11 Ceiling panel
12 Shield plate
13 Urethane roller
14 Nut
15 plates
16 Laura
17 Inside
18 Surface
19 corner
20 corners

Claims (4)

A device for suppressing noise generated when a moving wall is suspended from a ceiling rail, and extends downward from a suspension vehicle that rotatably supports two horizontal wheels at a predetermined interval. The suspension bolt connected to the upper end of the moving wall is fitted with an elastic roller excellent in elasticity, and the size of the elastic roller is set to an outer diameter leaving a slight clearance between the guide portion of the ceiling rail. pieces of the outer diameter of the sleeve mounted between the horizontal wheel, in a state in which the elastic roller hit corner guide portion intersect at the intersection of the ceiling rail, a corner of the traveling piece outer circumferential surface of the sleeve rests horizontal wheels In order to brake the moving wall approaching the wall surface or intersection , the guide rail inner surface of the ceiling rail near the wall surface or the L-shaped intersection or the T-shaped intersection near the inner surface of the guide portion has a predetermined length. The plate Attached along the de part, to the hanging bolt fitted with a roller, and at least one can be a generating friction by contact with each other friction material of the outer surface of the surface or roller of the plate, and are sandwiched between two plates A noise prevention device for a moving wall, characterized in that a clearance between the rollers is 0 to 2 mm. 2. The noise prevention apparatus for a moving wall according to claim 1, wherein urethane rubber is used as a material of the elastic roller. The noise prevention device for a moving wall according to claim 1 or 2, wherein the material of the plate or the material of the roller is urethane rubber. 4. The noise prevention device for a moving wall according to claim 1, wherein the elastic roller fitted to the suspension bolt is on the lower side and the roller is placed thereon.

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