JP2015052227A - Fitting structure of vibration isolator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a panel for longitudinally partitioning a space from twisting so as to rotate in the horizontal direction by a pressure difference between both longitudinal spaces.SOLUTION: Vibration isolators 3 and 3 are arranged on both left-right sides of a door frame 5, and a door side bracket 19 comprises door side joining plates 33 and 33 joined to a rubber isolator 23 by extending in the lateral direction toward an outer jamb 13. A skeleton side bracket 21 comprise skeleton side joining plates 47 and 47 of extending in the lateral direction toward a left side surface 9a of a jamb 9, overlapping with the door side joining plates 33 and 33 when viewed from the longitudinal direction and joined to the rubber isolator 23. The respective rubber isolators 23 connect both by being arranged between the door side joining plate 33 and the skeleton side joining plate 47, and are inclined to the outside in the lateral direction toward the rear side.

Description

  The present invention relates to a structure for mounting an anti-vibration device having an anti-vibration rubber that is disposed between a panel that divides a space and a casing side that surrounds the outer periphery of the panel and elastically connects the panel and the casing side. .

  Patent Document 1 discloses a vibration isolator that is attached to a sliding door that partitions a space forward and backward. A plurality of the anti-vibration devices are disposed between the upper frame of the door frame and the housing to which the sliding door is attached. Each anti-vibration device includes a frame-side bracket fixed to the upper frame and a frame-side bracket fixed to the housing, and an anti-vibration rubber disposed therebetween elastically connects the two. The frame-side bracket is V-shaped when viewed from the front-rear direction, and the V-shaped bottom is fixed to the upper surface of the upper frame. On the other hand, the frame side brackets are fixed to both the left and right sides of the frame side bracket on the door frame facing surface of the frame, and are respectively disposed parallel to the outer surface of the frame side bracket. And the anti-vibration rubber | gum is arrange | positioned between the frame side bracket and the housing side bracket, elastically connects both, and supports the door frame. Each anti-vibration rubber has a compression direction that substantially coincides with the vertical direction and a shearing direction that coincides with the front-rear direction, and elastically deforms when the door is opened and closed, thereby suppressing transmission of vibration to the housing side.

Japanese Patent No. 490909

  By the way, when the panel that divides the space is, for example, a front door, outdoor wind may hit the door, and the door frame may flutter back and forth due to the wind pressure.

  In the vibration isolator of Patent Document 1, since the shear direction of the vibration isolating rubber coincides with the front-rear direction as described above, the door frame is slightly movable in the front-rear direction. Therefore, the door frame to which the vibration isolator is attached may flutter back and forth due to wind pressure. Moreover, since the vibration isolator of patent document 1 is attached only to the upper frame as mentioned above, the door frame can also move to the left and right. Therefore, the door frame may flutter in the left-right direction. Since the door frame can flutter in the front-rear and left-right directions in this way, there is a risk of twisting to rotate in the horizontal direction.

  The present invention has been made in view of such points, and an object of the present invention is to prevent the panel that partitions the space forward and backward from being twisted so as to rotate in the horizontal direction due to the pressure difference between the front and rear spaces. It is in.

  In order to achieve the above object, the present invention is provided with vibration isolation devices on both the left and right sides of a panel that partitions a space, and devised the shape and arrangement of the vibration isolation rubber of each vibration isolation device.

  Specifically, the present invention is arranged between a panel that partitions the space forward and backward and a housing side part that surrounds the outer periphery of the panel, and a panel side bracket fixed to the panel, and the housing side part. An anti-vibration device comprising: a housing-side bracket provided at a position corresponding to the panel-side bracket; and an anti-vibration rubber disposed between the brackets for connecting the two, and elastically connecting the panel and the housing side. The following solutions were taken for the mounting structure.

  That is, according to the first aspect of the present invention, the vibration isolator is disposed on at least one of the upper and lower sides and the left and right sides of the panel, the panel side bracket includes a panel side fixing portion fixed to the side of the panel, and the panel A panel-side joining plate that extends in the left-right direction from the side fixing portion toward the housing side and joins with the anti-vibration rubber, while the housing-side bracket corresponds to the panel-side bracket corresponding portion of the housing side A housing-side fixing portion fixed to the housing, and a housing that extends from the housing-side fixing portion in the left-right direction toward the panel side surface, overlaps with the panel-side joining plate when viewed from the front-rear direction, and joins the vibration-proof rubber. And the anti-vibration rubber is disposed between the panel-side joining plate and the housing-side joining plate and connects the two, and faces the one side in the front-rear direction. And it is inclined away from the panel side Te.

  According to 1st invention, when a pressure difference arises in two space partitioned off with the panel, a pressure will act on a panel and the panel side joining plate fixed to this panel will approach or space apart from a housing side joining plate. .

  When the panel side joining plate approaches the case side joining plate, the vibration isolating rubbers of the left and right vibration isolating devices are compressed. The compressed anti-vibration rubber repels the compressive force, and this repulsive force acts on the panel side joining plate. At this time, since the anti-vibration rubber is inclined outward in the left-right direction toward one side in the front-rear direction, the repulsive force acts in a direction that separates the panel-side joining plate from the housing-side joining plate and goes inward in the left-right direction. . That is, each anti-vibration rubber presses the panel in the counter-pressure direction and presses it inward in the left-right direction. Therefore, the panel resists pressure caused by the pressure difference due to the vibration isolating rubber on the left and right sides, and does not flutter in the front-rear direction. I don't flutter.

  On the other hand, when the panel-side joining plate is separated from the housing-side joining plate, the anti-vibration rubbers of the anti-vibration devices on both the left and right sides are pulled in the front-rear direction and contract to resist it. By this contraction, a tensile force by the vibration-proof rubber acts on the panel side joining plate. Since the anti-vibration rubber is inclined outward in the left-right direction toward the one side in the front-rear direction, this tensile force acts in a direction that causes the panel-side joining plate to approach the housing-side housing-side joining plate and outward in the left-right direction. . That is, each anti-vibration rubber pulls the panel in the counter-pressure direction and pulls the panel outward in the left-right direction. Therefore, the panel resists the pressure caused by the pressure difference due to the vibration isolating rubber on the left and right sides, does not flutter in the front-rear direction, and is pulled outward in the left and right direction by the vibration isolating rubber on the left and right sides. I don't flutter.

  From the above, even if pressure due to the pressure difference between the front and rear spaces acts on the panel, the panel does not flutter back and forth and does not move in the left-right direction. Therefore, it is possible to prevent the panel from being twisted so as to rotate in the horizontal direction.

  When the vibration isolator is installed on both the upper and lower sides of the panel, the anti-vibration rubbers on both the upper and lower sides press the panel in the counter-pressure direction and the panel Press inward in the vertical direction or pull outward in the vertical direction. Therefore, the panel does not flutter in the front-rear direction and does not move in the left-right direction. Therefore, it is possible to prevent the panel from being twisted so as to rotate in the horizontal direction.

  In a second aspect based on the first aspect, the anti-vibration device is disposed on both the left and right sides of the panel, and the panel-side bracket has a U-shape that opens outward in the left-right direction when viewed in the vertical direction. In addition, while having a pair of parallel panel-side joining plates arranged at intervals in the front-rear direction, the housing-side bracket has a U-shape that opens inward in the left-right direction when viewed in the vertical direction, A pair of parallel casing-side joining plates arranged at intervals is provided, one of which is arranged between the pair of panel-side joining plates, and the anti-vibration rubber is paired with an interval in the front-rear direction. Provided, one of which connects the one housing-side joining plate and the other panel-side joining plate far from the other housing-side joining plate, while the other connects the other housing-side joining plate and the other Wherein the coupling of the skeleton side joining plates the panel side bonding plate closer to.

  According to the second aspect of the invention, since the panel side bracket and the housing side bracket of each vibration isolator are connected by the two vibration isolating rubbers, the regulating force that regulates the movement of the panel when pressure is applied to the panel is provided. improves. Therefore, the deformation of the panel can be prevented more reliably.

  According to a third invention, in the first or second invention, the panel side fixing portion is constituted by a rectangular plate-like panel side fixing plate fixed to the side surface of the panel, and an upper end portion of the panel side fixing plate is In addition, a notch that extends upward from the upper end of the panel-side joining plate and opens to one side in the front-rear direction is formed, while the lower end of the panel-side fixing plate is lower than the lower end of the panel-side joining plate A notch that extends downward and opens on one side in the front-rear direction is formed, and a pair of bolt shafts extending from the side of the panel toward the side of the housing passes through the notch, and is screwed into each bolt shaft. The upper end portion and the lower end portion are sandwiched and fixed by a nut to be joined and the side surface of the panel.

  According to the third invention, when the panel side bracket is attached to the side surface of the panel, first, the opening end of the notch portion of the panel side fixing plate is aligned with the bolt shaft portion provided on the side surface of the panel. Next, the panel side bracket is moved to one side in the front-rear direction to introduce the bolt shaft portion into the cutout portion, and the bolt shaft portion is inserted through the cutout portion. Then, a nut is screwed onto the bolt shaft portion, and the panel side fixing plate is sandwiched and fixed between the nut and the side surface of the panel. Thereby, even if the clearance gap between a panel and a case side part is narrow, a panel side bracket can be easily fixed to a panel.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the case-side fixing portion includes a rectangular plate-like case-side fixing plate fixed to the case-side portion, and the case-side fixing. The upper end of the plate extends above the upper end of the housing-side joining plate and is formed with a notch that opens to one side in the front-rear direction, while the lower end of the housing-side fixing plate is formed by the housing-side joining. A notch that extends downward from the lower end of the plate and opens to one side in the front-rear direction is formed, and a pair of bolt shaft portions that extend from the side of the housing toward the side of the panel pass through the notch, The upper end portion and the lower end portion are sandwiched and fixed by a nut screwed into a bolt shaft portion and the casing side portion.

  According to the fourth invention, similarly to the third invention, the housing-side bracket can be easily fixed to the housing-side portion.

  As described above, according to the present invention, even if pressure resulting from the pressure difference between the front and rear spaces acts on the panel, the panel does not flutter in the front-rear direction and does not move in the left-right direction. Therefore, it is possible to prevent the panel from being twisted so as to rotate in the horizontal direction.

It is a front view which shows the automatic door apparatus to which the attachment structure of the vibration isolator which concerns on embodiment of this invention was applied. It is the II-II sectional view taken on the line of FIG. It is the perspective view of a vibration isolator, Comprising: (a) is the figure seen from substantially upper direction, (b) is the figure seen from front upper direction. It is a figure which shows a vibration isolator, Comprising: (a) is a top view, (b) is a front view, (c) is the IVc-IVc sectional view taken on the line of (a). It is the V section expansion equivalent view of FIG. 1 which looked at the automatic door apparatus from the front. FIG. 3 is a view corresponding to FIG. 2 when the door receives pressure from the front side. FIG. 3 is a view corresponding to FIG. 2 when the door receives pressure from the rear side. It is a figure which shows the result of the performance evaluation test of the attachment structure of the vibration isolator which concerns on embodiment, Comprising: (a) is a figure which shows the spring behavior of the vibration isolator in the compression direction of vibration isolator rubber, (b) is It is a figure which shows the spring behavior of the vibration isolator in the shear direction of a vibration proof rubber. FIG. 4A is a diagram corresponding to FIG. 4A of the vibration isolator according to the first modification of the embodiment of the present invention, and FIG. 4B is a diagram corresponding to FIG. 4A of the vibration isolator according to the second modification. is there. 4A is a diagram corresponding to FIG. 4A of the vibration isolator according to the third modification of the embodiment of the present invention, and FIG. 4B is a diagram corresponding to FIG. 4A of the vibration isolator according to the fourth modification. is there. FIG. 4A is a diagram corresponding to FIG. 4A of a vibration isolator according to a fifth modification of the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the following description of preferable embodiment is only an illustration essentially, and is not intending restrict | limiting this invention, its application thing, or its use.

  FIG. 1 is a front view showing an automatic door device 1 to which a vibration isolator mounting structure according to an embodiment of the present invention is applied. 2 is a cross-sectional view taken along line II-II in FIG. The automatic door device 1 is installed at the entrance of a building, and is fitted and fixed in an opening (not shown) formed in the housing of the building. The automatic door device 1 has a rectangular metal door frame 5 fixed to the inner peripheral edge of the opening through a plurality of vibration isolators 3, and four doors 7, 7, … Is attached. .. Of the four doors 7, 7... Are fixed to the door frame 5. On the other hand, as shown in FIG. 2, the two doors 7 and 7 at the center are arranged closer to the indoor space A than the doors 7 and 7 at both left and right ends, and can slide in the left and right directions within the door frame 5. It has become. The central doors 7 and 7 slide inward in the left-right direction and close together to close the inside of the door frame 5, while the doors 7 and 7 slide out in the left-right direction, The inside of the frame 5 is opened. Therefore, a panel for partitioning the indoor space A and the outdoor space B is constituted by the four doors 7 and 7 and the door frame 5. Here, for convenience of explanation, the outdoor B side and the indoor space A side are defined as the front side and the rear side, respectively.

  The door frame 5 is configured by a pair of vertical frames 9 and 9 extending upward from the left and right ends of the opening on the floor surface F, and a case body 11 connecting the upper ends of the vertical frames 9 and 9. Yes. The case body 11 stores an engine (not shown) that slides the central doors 7 and 7 in the left-right direction.

  Around the outer periphery of the door frame 5, a metal outer frame 13 (frame side portion) attached to the inside of the opening is installed. The outer frame 13 includes a pair of outer vertical frames 15 and 15 extending from the outer side in the left-right direction of the vertical frame 9 to the upper side of the case body 11 on the floor surface F, and the upper ends of the outer vertical frames 15 and 15. And an outer upper frame 17 connecting the two. Between the vertical frame 9 of the door frame 5 and the outer vertical frame 15 adjacent thereto, nine anti-vibration devices 3, 3,... . In other words, the vibration isolator 3, 3,... Is disposed on the left and right sides of the door frame 5 and elastically connects the vertical frame 9 and the outer vertical frame 15. In addition, between the case body 11 of the door frame 5 and the outer upper frame 17 above the door frame 5, seven anti-vibration devices 3 are spaced apart from each other in the left-right direction on both the left and right sides of the center line in the left-right direction. These vibration isolation devices 3, 3... Elastically connect the case body 11 and the outer upper frame 17. In FIG. 1, the vibration isolators 3, 3,...

  Here, the structure of the anti-vibration device 3 disposed between the left vertical frame 9 and the left outer vertical frame 15 among the plurality of anti-vibration devices 3 will be described. Since the other vibration isolator 3 has substantially the same configuration as that of the vibration isolator 3, description of the configuration of these other vibration isolator 3 is omitted.

  As shown in FIG. 2, the vertical frame 9 has a rectangular cross section, and a door side bracket 19 (panel side bracket) of the vibration isolator 3 is attached to the left side surface 9a (panel side surface). On the other hand, the outer vertical frame 15 also has a rectangular cross section, and the housing side bracket 21 of the vibration isolator 3 is fixed to the right side surface 15a. A pair of anti-vibration rubbers 23, 23 are disposed between the door-side bracket 19 and the housing-side bracket 21, and the anti-vibration rubbers 23, 23 connect the brackets 19, 21 together.

  3A and 3B are perspective views of the vibration isolator 3, wherein FIG. 3A is a diagram viewed from substantially above, and FIG. 3B is a diagram viewed from the front upper side. 4A and 4B are diagrams showing the vibration isolator 3, wherein FIG. 4A is a plan view, FIG. 4B is a front view, and FIG. 4C is a sectional view taken along line IVc-IVc in FIG.

  The door side bracket 19 and the housing side bracket 21 have substantially the same configuration. The door-side bracket 19 is formed by bending a steel plate and has a U-shape that opens to the left when viewed from the up-down direction. The door-side bracket 19 has a flat door-side fixing plate 25 fixed to the left side surface 9a of the vertical frame 9. The door-side fixing plate 25 includes a rectangular door-side fixing plate main body 27, And mounting portions 29 and 29 projecting outward in the vertical direction from both the upper and lower ends. Each mounting portion 29 is formed with a notch 31 that opens forward in the center in the vertical direction, and has a substantially C-shape as a whole. As shown in FIG. 4C, each notch 31 has a rectangular shape in the first half and a semicircular shape in the second half. Further, at both ends in the front-rear direction of the door-side fixing plate main body 27, door-side joining plates 33, 33 joined to the anti-vibration rubber 23 extend to the left in parallel with the doors 7, 7,. The door-side joining plates 33 and 33 have the same rectangular shape and extend in parallel. The attachment portions 29 and 29 extend outward in the vertical direction from the door side joining plates 33 and 33.

  FIG. 5 is an enlarged view of the portion V of FIG. 1 as viewed from the front. A pair of bolts 35, 35 are attached to the left side surface 9 a of the vertical frame 9 with an interval in the vertical direction. Each bolt 35 is attached such that the head is embedded in the vertical frame 9 and the shaft portion 35 a extends leftward from the left side surface 9 a of the vertical frame 9. Each of the bolt shaft portions 35 a is inserted through the cutout portion 31 of the mounting portion 29 and screwed with the nut 37. The mounting portion 29 is sandwiched between the nut 37 and the left side surface 9 a of the vertical frame 9. In this way, the door side bracket 19 is fixed to the vertical frame 9.

  On the other hand, the housing side bracket 21 is formed by bending a steel plate, and has a U-shape that opens to the right when viewed from above and below as shown in FIGS. 2 and 4A. The housing side bracket 21 has a flat housing side fixing plate 39 fixed to the right side surface 15a of the outer vertical frame 15 corresponding to the door side bracket 19, and the housing side fixing plate 39 has a rectangular shape. The housing side fixing plate main body 41 and mounting portions 43 and 43 projecting outward in the vertical direction from both upper and lower ends thereof. Each mounting portion 43 is formed with a notch 45 that opens forward in the center in the vertical direction, and has a substantially C-shape as a whole. As shown in FIG. 4C, each notch 45 has a rectangular shape in the first half and a semicircular shape in the second half. Further, rectangular housing-side joining plates 47, 47 extend leftward from both ends of the housing-side fixing plate main body 41 in the front-rear direction in parallel to the doors 7, 7,. The mounting portions 43, 43 extend outward in the vertical direction from the housing side joining plates 47, 47.

  As shown in FIG. 5, a pair of bolts 35, 35 are vertically spaced on the right side surface 15 a of the outer vertical frame 15 so as to face the pair of bolts 35, 35 for fixing the door side bracket 19. It is attached with a gap. Each bolt 35 is attached such that the head is embedded in the outer vertical frame 15 and the shaft portion 35a extends rightward from the right side surface 15a of the outer vertical frame 15. The bolt shaft portions 35a are inserted through the notches 45 of the mounting portion 43, and the nuts 37 are screwed together. The mounting portion 43 is sandwiched between the nut 37 and the right side surface 15 a of the outer vertical frame 15. In this way, the housing side bracket 21 is fixed to the outer vertical frame 15.

  The door side bracket 19 is arranged slightly shifted forward from the housing side bracket 21. Specifically, as shown in FIGS. 2 to 4, the rear door-side joining plate 33 of the both door-side joining plates 33, 33 is disposed between the two housing-side joining plates 47, 47. ing. In other words, the front housing side joining plate 47 of the both housing side joining plates 47 and 47 is disposed between the both door side joining plates 33 and 33.

  Then, as viewed from the front-rear direction, a region from the left-right center of the front door-side joining plate 33 to the left end and a region from the left-right center of the front-side joining plate 47 to the right end And are overlapping. Further, when viewed from the front-rear direction, the region from the right side central right side position of the rear door side joining plate 33 to the left end and the left side center left side position of the rear housing side joining plate 47 to the right end. This area overlaps.

  The pair of anti-vibration rubbers 23, 23 are arranged at intervals in the front-rear direction. Each of the anti-vibration rubbers 23 and 23 has a quadrangular prism shape, and has a parallelogram shape inclined leftward toward the rear side when viewed from the vertical direction.

  The front-side anti-vibration rubber 23 is disposed between the front-side door-side joining plate 33 and the front-side housing-side joining plate 47. The front-side anti-vibration rubber 23 has a front end surface in the left-right direction central portion of the rear surface of the front-side door-side joining plate 33, specifically, a region from the left-side position to the right-side position in the left-right direction center of the rear surface. The rear end surface is joined to the front side of the front side housing-side joining plate 47 in the left-right direction, specifically, the region from the left side to the right side of the center of the front side in the left-right direction.

  On the other hand, the rear vibration isolating rubber 23 is disposed between the rear door side joining plate 33 and the rear case side joining plate 47. The rear vibration isolating rubber 23 has a front end surface in the left-right direction central portion of the rear surface of the rear door-side joining plate 33, specifically, from a left-side position to a right-side position in the left-right direction center of the rear surface. The rear end surface is joined to the center in the left-right direction of the front surface of the rear housing-side joint plate 47, specifically, the region from the left side to the right side of the center in the left-right direction of the front side. ing.

  Therefore, the joint between the front vibration isolating rubber 23 and the front door side joining plate 33 is in contact with the rear door side joining plate 33 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. It overlaps with the joint. Further, the joint portion of the front vibration isolating rubber 23 and the front housing side joining plate 47 is in contact with the rear housing side joining plate 47 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. It overlaps with the joint.

  The door side bracket 19 and the housing side bracket 21 of the vibration isolator 3, 3,... Disposed on the upper frame 17 of the door frame 5 are U-shaped when viewed from the left and right directions, and the vibration isolating rubber 23. Is inclined upward toward the rear side when viewed from the left-right direction.

  Next, the operation of the vibration isolation devices 3, 3,... When the doors 7, 7,. 6 is a view corresponding to FIG. 2 when the doors 7, 7,... Receive pressure from the front side. The solid line indicates a state where pressure is not received, and the broken line indicates a state where pressure is received. In FIG. 6, the central two doors 7, 7 are omitted from the four doors 7, 7,.

  When the four doors 7, 7,... Receive pressure from the front side, the doors 7, 7,. Then, the door frame 5 to which these doors 7, 7,... Are attached is also pushed backward. At this time, the anti-vibration devices 3 on the left and right sides operate in the same manner. Therefore, here, the operation of the left anti-vibration device 3 will be mainly described, and the operation of the right anti-vibration device 3 will be briefly described. To do.

  When the door frame 5 is pushed from the front side, the door-side bracket 19 attached to the left side of the door frame 5 slides backward. Here, the housing side bracket 21 is fixed to the housing side and is not displaced, and only the door side bracket 19 slides backward. Accordingly, the two door-side joining plates 33 and 33 formed on the door-side bracket 19 slide rearward and approach the housing-side joining plates 47 and 47 arranged on the rear side, respectively.

  At the time of this approach, each anti-vibration rubber 23 of the anti-vibration device 3 is compressed in the front-rear direction. Each compressed vibration-proof rubber 23 exhibits a repulsive force F1 in the front-rear direction. Here, since each anti-vibration rubber 23 is inclined leftward toward the rear side as described above, the repulsive force F1 acts in a direction inclined rightward toward the front side. Therefore, the door side joining plates 33 and 33 are pushed by the vibration isolating rubbers 23 and 23 in a direction inclined rightward toward the front side. That is, the door-side bracket 19 is pressed forward and pressed rightward against the pressure acting on the doors 7, 7,.

  On the other hand, in the anti-vibration device 3 on the right side, the door-side bracket 19 is pressed front left by the anti-vibration rubbers 23 and 23.

  As a result, the door frame 5 is pressed forward by the anti-vibration devices 3 on both the left and right sides so as to resist pressure acting on the doors 7, 7,. Therefore, the door frame 5 does not flutter in the front-rear direction and further does not flutter in the left-right direction. Therefore, the door frame 5 is not twisted so as to rotate in the horizontal direction.

  On the other hand, the operation of the vibration isolator 3, 3, ... when the door 7, 7, ... receives pressure from the indoor space A will be described with reference to FIG. FIG. 7 is a view corresponding to FIG. 2 when the doors 7, 7,... Receive pressure from the rear side, the solid line indicates a state where pressure is not received, and the broken line indicates a state where pressure is received. In FIG. 7, the central two doors 7, 7 are omitted from the four doors 7, 7,.

  When the four doors 7, 7,... Receive pressure from the rear indoor space A, the doors 7, 7,. Then, the door frame 5 to which these doors 7, 7,... Are attached is also pushed forward. At this time, the anti-vibration devices 3 on the left and right sides operate in the same manner. Therefore, here, the operation of the left anti-vibration device 3 will be mainly described, and the operation of the right anti-vibration device 3 will be briefly described. To do.

  When the door frame 5 is pushed from the rear side, the door side bracket 19 slides forward. Here, the housing side bracket 21 is fixed to the housing side and is not displaced, and only the door side bracket 19 slides forward. Accordingly, the two door-side joining plates 33 and 33 formed on the door-side bracket 19 slide forward and are separated from the housing-side joining plates 47 and 47 of the housing-side bracket 21 disposed on the rear side. To do.

  At the time of this separation, each anti-vibration rubber 23 of the anti-vibration device 3 is pulled in the front-rear direction. Each antivibration rubber 23 that has been pulled exerts a tensile force F2 in an attempt to shrink. Here, since each anti-vibration rubber 23 is inclined leftward toward the rear side as described above, the tensile force F2 acts in a direction inclined leftward toward the rear side. Therefore, the door side joining plates 33 and 33 are pulled rearward leftward by the vibration isolating rubbers 23 and 23. That is, the door-side bracket 19 is pulled rearward and against the left by the anti-vibration rubbers 23, 23 so as to resist the pressure acting on the doors 7, 7,.

  On the other hand, in the vibration isolator 3 on the right side, the door-side bracket 19 is pulled rearwardly by the vibration isolating rubbers 23 and 23.

  As a result, the door frame 5 is pulled rearward and against the pressure acting on the doors 7, 7,. Therefore, the door frame 5 does not flutter in the front-rear direction and further does not flutter in the left-right direction. Therefore, the door frame 5 is not twisted so as to rotate in the horizontal direction.

  Further, since the vibration isolating rubber 23 of the vibration isolating device 3 disposed on the upper frame 17 is inclined upward toward the rear side, when the doors 7, 7,. The vibration rubber 23 is compressed, and the door frame 5 is pressed forward and downward by the repulsive force so as to resist pressure. When the doors 7, 7,... Receive pressure from the indoor space A, the vibration isolating rubber 23 is pulled, and the door frame 5 is pulled rearward and upward by the tensile force. Therefore, the door frame 5 does not flutter in the front-rear direction and does not move in the left-right direction. Therefore, it is possible to further prevent the door frame 5 from being twisted so as to rotate in the horizontal direction.

  As described above, even if the doors 7, 7,... Are pressed in the front-rear direction, the anti-vibration devices 3 on both the left and right sides restrict the front-rear, left-right movement of the door frame 5, and thus the door frame 5 rotates in the horizontal direction. Thus, it is possible to prevent twisting.

(Performance evaluation test of anti-vibration rubber inclination)
The inventors of the present application conducted a performance evaluation test of the degree of inclination of the vibration-proof rubber 23. In this test, anti-vibration devices 3 and 3 were installed on the left and right sides of the panel dividing the space forward and backward, and the spring behavior of the anti-vibration devices 3 and 3 was measured when pressure was applied to the panel from the rear side. 8A and 8B are diagrams showing the results of the performance evaluation test, where FIG. 8A is a diagram showing the behavior of the vibration isolators 3 and 3 in the compression direction, and FIG. 8B is the shear direction of the vibration isolators 3 and 3. It is a figure which shows a behavior. The horizontal axis of FIG. 8A indicates the displacement in the compression direction of the vibration isolating rubber 23, and the vertical axis indicates the load in the compression direction acting on the vibration isolating rubber 23. Further, the horizontal axis of FIG. 8B indicates the displacement in the shearing direction of the vibration isolating rubber 23, and the vertical axis indicates the load in the shearing direction acting on the vibration isolating rubber 23. In each figure, the square plot shows the behavior when the anti-vibration rubber 23 has an inclination of 0 degree, and the triangular plot shows the behavior when the anti-vibration rubber 23 is inclined by 30 degrees with respect to the front-rear direction. The rhombus plot shows the behavior when the antivibration rubber 23 is inclined 60 degrees with respect to the front-rear direction.

  As can be seen from FIG. 8A, the spring behavior of the vibration isolating rubber 23 in the compression direction was almost independent of the inclination angle of the anti vibration isolating rubber 23. Further, as can be seen from FIG. 8B, the anti-vibration rubber 23 was displaced in the shear direction when the inclination angle of the anti-vibration rubber 23 was 0 degrees. On the other hand, when the inclination angle of the vibration isolating rubber 23 was 30 degrees and 60 degrees, the vibration isolating rubber 23 was hardly loaded in the shearing direction and was not displaced in the shearing direction. Therefore, it was found that the panel is hardly displaced in the left-right direction by tilting the vibration-proof rubber 23 with respect to the front-rear direction. The inclination angle of the vibration isolating rubber 23 is preferably 45 degrees or more and 60 degrees or less with respect to the front-rear direction.

-Effects of the embodiment of the invention-
According to the embodiment, as described above, when the door frame 5 receives pressure from the front side and the rear side, the door frame 5 can be prevented from being twisted so as to rotate in the horizontal direction.

  Moreover, according to the said embodiment, since the door side bracket 19 and the housing side bracket 21 of each anti-vibration apparatus 3 are connected by the two anti-vibration rubbers 23 and 23, a pressure acts on the doors 7, 7, .... When it does, the control power which controls the movement of the door frame 5 improves. Therefore, the deformation of the door frame 5 can be prevented more reliably.

  Furthermore, according to the above embodiment, when the door side bracket 19 is attached to the right side surface 15a of the door frame 5, first, the opening ends of the notches 31 and 31 of the door side fixing plate 25 protrude from the right side surface 15a. Align with the bolt shaft parts 35a, 35a. Next, the door-side bracket 19 is moved forward or backward to introduce the bolt shaft portions 35a and 35a into the cutout portions 31 and 31, and the bolt shaft portions 35a and 35a are inserted through the cutout portions 31 and 31, respectively. Subsequently, nuts 37 and 37 are screwed onto the bolt shaft portions 35 a and 35 a, and the door side fixing plate 25 is sandwiched and fixed between the nuts 37 and 37 and the right side surface 15 a of the door frame 5. Thereby, even if the gap between the door frame 5 and the outer vertical frame 15 is narrow, the door side bracket 19 can be easily fixed to the door frame 5. Similarly, the frame side bracket 21 can be easily fixed to the outer vertical frame 15.

(Modification 1)
FIG. 9A is a view corresponding to FIG. 4A of the vibration isolator 3 according to the first modification of the present embodiment. In this modification, the positions of the joint portions of the vibration isolating rubbers 23 on both the front and rear sides with the brackets 19 and 21 are different from those in the above embodiment. Other configurations are substantially the same as those in the above embodiment, and thus the description thereof is omitted here.

  The front vibration isolator 23 has a front end surface bonded to a region from a left half portion of the rear surface of the front door side bonding plate 33 to a position to the right of the center in the left-right direction, and a rear end surface thereof is the front case side bonding plate. 47 It joins to the area | region from the right half part of the front surface to the position of the center left side of the left-right direction.

  On the other hand, the rear vibration-proof rubber 23 has a front end surface bonded to a region from the left half of the rear surface of the rear door-side bonding plate 33 to a position to the right of the center in the left-right direction, and a rear end surface of the rear vibration-proof rubber 23 It is joined to the region from the right half of the front surface of the housing side joining plate 47 to the position to the left of the center in the left-right direction.

  Therefore, the joint between the front vibration isolating rubber 23 and the front door side joining plate 33 is in contact with the rear door side joining plate 33 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. It overlaps with the joint. Further, the joint portion of the front vibration isolating rubber 23 and the front housing side joining plate 47 is in contact with the rear housing side joining plate 47 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. It overlaps with the joint.

  With this configuration, as in the above embodiment, even if pressure due to the pressure difference between the front and rear spaces acts on the doors 4, 4,..., The doors 4, 4,. Furthermore, it does not move in the left-right direction. Therefore, the door frame 5 can be prevented from being twisted so as to rotate in the horizontal direction.

(Modification 2)
FIG. 9B is a view corresponding to FIG. 4A of the vibration isolator 3 according to the second modification of the present embodiment. In this modification, the arrangement of the brackets 19 and 21 and the positions of the joint portions of the anti-vibration rubbers 23 and 23 on both the front and rear sides with the brackets 19 and 21 are different from those of the above embodiment. Other configurations are substantially the same as those in the above embodiment, and thus the description thereof is omitted here.

  The front door side joining plate 33 and the front case side joining plate 47 overlap in the front-rear direction. The rear door side joining plate 33 and the rear housing side joining plate 47 also overlap in the front-rear direction.

  The front vibration-proof rubber 23 has a front end surface bonded to the right half of the rear surface of the front door-side bonding plate 33, and a rear end surface of the front vibration-proof rubber 23 from the position on the left side of the front side of the front housing-side bonding plate 47. It is joined to the area up to the right side center.

  On the other hand, the rear vibration-proof rubber 23 joins the front end surface of the rear door-side joining plate 33 from the position on the right side of the left end to the right side of the rear end of the rear side, and the rear end surface thereof It is joined to the left half of the front surface of the rear housing side joining plate 47.

  Therefore, the joint between the front vibration isolating rubber 23 and the front door side joining plate 33 is in contact with the rear door side joining plate 33 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. It is located on the right side of the joint. Further, the joint portion of the front vibration isolating rubber 23 and the front housing side joining plate 47 is in contact with the rear housing side joining plate 47 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. It is located on the right side of the joint.

  With this configuration, as in the above embodiment, even if pressure due to the pressure difference between the front and rear spaces acts on the doors 4, 4,..., The doors 4, 4,. Furthermore, it does not move in the left-right direction. Therefore, the door frame 5 can be prevented from being twisted so as to rotate in the horizontal direction.

(Modification 3)
FIG. 10A is a view corresponding to FIG. 4A of the vibration isolator 3 according to the second modification of the present embodiment. This modification differs from the above embodiment in the shape of the anti-vibration rubbers 23, 23 on both the front and rear sides and the position of the joint portion between these brackets 19, 21. Other configurations are substantially the same as those in the above embodiment, and thus the description thereof is omitted here.

  Both the anti-vibration rubbers 23 and 23 are formed in a quadrangular prism shape, and the width in the left-right direction becomes larger toward the front side as viewed from the up-down direction.

  The front vibration-proof rubber 23 is bonded to a region in which the front end surface thereof extends from a position in the left-right direction center of the right half portion of the rear surface of the front-side door-side bonding plate 33 to a position to the left in the left-right direction center of the rear surface. The rear end surface is joined to a region from the position on the left side of the front side of the front side housing-side joining plate 47 to the position on the left side of the right end in the left-right direction. Therefore, the bonding area between the front end surface and the rear surface of the front door side bonding plate 33 is larger than the bonding area between the rear end surface and the front surface of the front housing side bonding plate 47.

  On the other hand, the rear vibration-proof rubber 23 has a front end surface in a region from the position of the left half of the rear half of the rear side of the rear door-side joining plate 33 to the position of the rear left side of the rear side in the left-right direction center. The rear end surface is joined to a region from the position on the left side of the right side of the front surface of the rear housing side joining plate 47 to the position on the right side of the center in the left-right direction. Therefore, the bonding area between the front end surface and the rear surface of the rear door side bonding plate 33 is larger than the bonding area between the rear end surface and the front surface of the rear housing side bonding plate 47.

  Then, the joint portion of the front vibration isolating rubber 23 with the front door side joining plate 33 is seen from the front-rear direction, and the rear door side joining plate 33 of the rear vibration isolating rubber 23. And overlap. Further, the joint portion of the front vibration isolating rubber 23 and the front housing side joining plate 47 is in contact with the rear housing side joining plate 47 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. It overlaps with the joint.

  With this configuration, as in the above embodiment, even if pressure due to the pressure difference between the front and rear spaces acts on the doors 4, 4,..., The doors 4, 4,. Furthermore, it does not move in the left-right direction. Therefore, the door frame 5 can be prevented from being twisted so as to rotate in the horizontal direction.

(Modification 4)
FIG. 10B is a diagram corresponding to FIG. 4A of the vibration isolator 3 according to the fourth modification of the present embodiment. In this modification, the arrangement of the brackets 19 and 21 and the joint relationship between the anti-vibration rubbers 23 and 23 on both the front and rear sides and the brackets 19 and 21 are different from the above embodiment. Other configurations are substantially the same as those in the above embodiment, and thus the description thereof is omitted here.

  The housing side fixing plate 39 of the housing side bracket 21 is wider in the front-rear direction than the door side fixing plate 25 of the door side bracket 19, and the door side bracket 19 is disposed inside the housing side bracket 21. .

  The front door-side joining plate 33 is disposed on the rear side of the front housing-side joining plate 47, and the portion from the left end of the front door-side joining plate 33 to the center in the left-right direction of the right half is In the front-rear direction, it overlaps with the portion from the right end of the front case side joining plate 47 to the center of the left half in the left-right direction.

  The rear door side joining plate 33 is disposed on the front side of the rear housing side joining plate 47, and extends from the left end of the rear door side joining plate 33 to the center in the left-right direction of the right half. The portion overlaps with the portion from the right end of the rear case side joining plate 47 in the front-rear direction to the center of the left half in the left-right direction.

  The front vibration-proof rubber 23 is disposed between the front door-side joining plate 33 and the front case-side joining plate 47, and the front end surface thereof is the left end of the rear side of the front case-side joining plate 47. It is joined to the region from the right side position to the left side center in the left-right direction, and its rear end surface is joined to the region from the left side right side position on the front side of the front side door-side joining plate 33 to the right side center right side position.

  On the other hand, the rear vibration-proof rubber 23 is disposed between the rear door-side joining plate 33 and the rear housing-side joining plate 47, and the front end surface thereof is the rear housing-side joining plate. 47 Joined to the region from the right end of the rear left side to the left central position in the left-right direction, and the rear end surface joined to the region from the right right end of the front side of the front side door-side joining plate 33 to the left central position in the left-right direction. doing.

  Thus, the joint portion of the front vibration isolator 23 with the front housing side joint plate 47 is the rear door side joint plate 33 of the rear vibration isolator 23 when viewed from the front-rear direction. And overlap. Further, the joint portion of the front vibration isolating rubber 23 and the front door side joining plate 33 is in contact with the rear housing side joining plate 47 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. It overlaps with the joint.

  With this configuration, as in the above embodiment, even if pressure due to the pressure difference between the front and rear spaces acts on the doors 4, 4,..., The doors 4, 4,. Furthermore, it does not move in the left-right direction. Therefore, the door frame 5 can be prevented from being twisted so as to rotate in the horizontal direction.

(Modification 5)
FIG. 11 is a view corresponding to FIG. 4A of the vibration isolator 3 according to the fifth modification of the present embodiment. This modification differs from the above embodiment in the shape and arrangement of the brackets 19 and 21 and the joint relationship between the anti-vibration rubbers 23 and 23 on both the front and rear sides and the brackets 19 and 21. Other configurations are substantially the same as those in the above embodiment, and thus the description thereof is omitted here.

  The door-side bracket 49 has a T-shape when viewed from the up-down direction. The door-side fixing plate 51 of the door-side bracket 49 is formed along the front-rear direction, and the door-side joining plate 53 extends from the center of the front-rear direction to the left. The door-side joining plate 53 is disposed between the housing-side joining plates 47 on the front and rear sides of the housing-side joining bracket 21. The portion from the left end of the door-side joining plate 53 to the center in the left-right direction of the left half overlaps with the portion from the right end of the two housing-side joining plates 47, 47 to the center in the left-right direction of the right half. Yes.

  The front side anti-vibration rubber 23 is disposed between the front case side joining plate 47 and the door side joining plate 53, and the front end surface thereof is closer to the right end of the rear side of the front case side joining plate 47. The rear end surface is joined to the region from the position on the right side of the left end of the front surface of the door-side joining plate 53 to the center in the left-right direction.

  On the other hand, the anti-vibration rubber 23 on the rear side is disposed between the door-side joining plate 53 and the rear-side housing-side joining plate 47, and its front end surface is closer to the right end of the rear surface of the door-side joining plate 53. The rear end surface is joined to the region from the position on the left side of the front side of the rear housing side joining plate 47 to the center in the left-right direction.

  Then, the joint portion of the front vibration isolating rubber 23 and the front housing side joining plate 47 overlaps the door side joining plate 53 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. Yes. Further, the joint portion of the front vibration isolating rubber 23 with the door side joining plate 53 is a joint portion with the rear housing side joining plate 47 of the rear vibration isolating rubber 23 when viewed from the front-rear direction. And overlap.

  With this configuration, as in the above embodiment, even if pressure due to the pressure difference between the front and rear spaces acts on the doors 4, 4,..., The doors 4, 4,. Furthermore, it does not move in the left-right direction. Therefore, the door frame 5 can be prevented from being twisted so as to rotate in the horizontal direction.

(Other embodiments)
In the above embodiment, the automatic door device installed at the entrance of the building is described as an example of a panel that partitions the space. However, the present invention is not limited to this, and the panel may be a door or partition that partitions the indoor space. In this case, the vibration isolators 3, 3,... Need only be arranged so as to face each other with the panel sandwiched in the outer peripheral portion of the panel. Therefore, it may be arranged not only on the left and right sides of the panel, but also on the upper and lower sides, and further on the diagonal of the panel so as to face each other.

  Moreover, in the said embodiment, while attaching part 29,29,43,43 is provided in the up-and-down both ends of the door side fixing plate 25 and the housing side fixing plate 39, these attaching parts 29,29,43,43 are attached to the volt | bolt 35 and Although it fixes using the nut 37, it is not limited to this, You may fix the said door side fixing plate 25 and the housing side fixing plate 39 by another fixing means.

  As described above, the vibration isolator mounting structure according to the present invention is used to prevent the panel that divides the space forward and backward from being twisted so as to rotate in the horizontal direction due to the pressure caused by the pressure difference between the front and rear spaces. Can be applied to.

3 Vibration isolator 5 Door frame (panel)
7 Door (panel)
9a Left side of left vertical frame (panel side)
13 Outer frame (frame side)
19 Door bracket (panel bracket)
21 Housing side bracket 23 Anti-vibration rubber 25 Door side fixing plate (Panel side fixing part, Panel side fixing plate)
29 Mounting parts (upper and lower ends of panel-side fixing plate)
31 Notch 33 Door side joining plate (panel side joining plate)
35a Bolt shaft portion 37 Nut 39 Housing side fixing plate (Housing side fixing portion)
43 Mounting parts (upper and lower ends of the frame-side fixing plate)
45 Notch 47 Housing side joining plate

Claims (4)

A panel-side bracket fixed to the panel and provided at a position corresponding to the panel-side bracket on the housing side part, disposed between a panel that divides the space forward and backward and a housing side part that surrounds the outer periphery of the panel. An anti-vibration device mounting structure comprising an enclosure-side bracket and an anti-vibration rubber disposed between the brackets and connecting the two, and elastically connecting the panel and the enclosure side;
The vibration isolator is disposed on at least one of the upper and lower sides and the left and right sides of the panel,
The panel-side bracket includes a panel-side fixing portion fixed to the side surface of the panel, a panel-side joining plate that extends along the panel surface from the panel-side fixing portion toward the housing side portion and is joined to the vibration-proof rubber. While having
The housing-side bracket includes a housing-side fixing portion that is fixed to the panel-side bracket-corresponding portion of the housing-side portion, extends from the housing-side fixing portion toward the panel side surface along the panel surface, and from the front-rear direction. The housing side joining plate that is overlapped with the panel side joining plate as seen and joined to the anti-vibration rubber, and
The anti-vibration rubber is disposed between the panel-side joining plate and the housing-side joining plate, connects both, and is inclined so as to be separated from the panel side surface toward one side in the front-rear direction. The mounting structure of the vibration isolator. In the vibration isolator mounting structure according to claim 1,
The vibration isolator is disposed on both the left and right sides of the panel,
The panel-side bracket has a U-shape that opens to the outside in the left-right direction when viewed from the vertical direction, and has a pair of parallel panel-side joining plates arranged at intervals in the front-rear direction,
The housing-side bracket has a U-shape that opens inward in the left-right direction when viewed from above and below, and has a pair of parallel housing-side joining plates arranged at intervals in the front-rear direction, one of which is the above-mentioned It is arranged between a pair of panel side joining plates,
The anti-vibration rubber is provided in pairs in the front-rear direction, one of which connects the one housing-side joining plate and the other panel-side joining plate far from the other housing-side joining plate, A structure for mounting a vibration isolator, wherein the other side connects the other case side joining plate and the panel side joining plate closer to the other case side joining plate. In the vibration isolator mounting structure according to claim 1 or 2,
The panel side fixing portion is configured by a rectangular plate-like panel side fixing plate fixed to the panel side surface,
While the upper end portion of the panel side fixing plate extends above the upper end of the panel side joining plate and is formed with a notch that opens to one side in the front-rear direction,
The lower end portion of the panel-side fixing plate is formed with a notch that extends below the lower end of the panel-side joining plate and opens on one side in the front-rear direction.
A pair of bolt shaft portions extending from the side surface of the panel toward the side of the housing passes through the notch portion, and the upper end portion and the lower end portion are sandwiched between the nut and the panel side surface which are screwed into the bolt shaft portions. An anti-vibration device mounting structure characterized by being fixed by In the vibration isolator mounting structure according to any one of claims 1 to 3,
The housing side fixing portion is configured by a rectangular plate-like housing side fixing plate fixed to the housing side portion,
While the upper end portion of the housing-side fixing plate extends above the upper end of the housing-side joining plate and is formed with a notch that opens to one side in the front-rear direction,
The lower end portion of the housing-side fixing plate is formed with a notch that extends below the lower end of the housing-side joining plate and opens to one side in the front-rear direction.
A pair of bolt shaft portions extending from the housing side portion toward the side surface of the panel are inserted through the notch portions, and the upper end portion and the lower end portion are sandwiched between the nut and the housing side portion that are screwed into the bolt shaft portions. An anti-vibration device mounting structure characterized by being fixed by being fixed.

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