JP6347645B2 - Anti-vibration support device - Google Patents

Description

  The present invention relates to an anti-vibration support device for a ceiling-suspended facility device that is installed suspended from a ceiling via a suspension bolt, and more particularly to an anti-vibration support device having a detachment prevention function.

  2. Description of the Related Art Conventionally, ceiling-suspended equipment such as an air conditioner is generally suspended from a ceiling via a suspension bolt and supported for vibration isolation.

  In the anti-vibration support device for anti-vibration support of such a ceiling-mounted equipment device, for example, as shown in FIG. 10A, the attachment portion 102a and the flange portion 102b of the connecting piece 102 attached to the equipment device 101. A U-shaped slit 102c that opens at the flange portion 102b is formed (see FIG. 10B), and a suspension bolt 103 is inserted into the slit 102c from the opening, and a plurality of nuts are inserted into the suspension bolt 103. 104 is screwed together, and the coupling piece 102 is sandwiched between the nuts 104 via elastic materials 105 and 106 such as a vibration-proof rubber so as to support vibration-proofing.

  Here, the U-shaped slit 102c formed in the connecting piece 102 is designed in consideration of workability. However, in the conventional anti-vibration support device 100, a stopper-shaped one with respect to the opening direction of the slit 102c is used. Therefore, when an external force such as an earthquake is applied between the suspension bolt 103 and the connecting piece 102, the suspension bolt 103 is easily detached from the slit 102c, and there is a problem that the equipment 101 falls.

  Therefore, in recent years, various anti-vibration support devices have been proposed to add not only the conventional anti-vibration function but also the anti-vibration function and the anti-separation function to prevent the suspension type equipment from falling when an earthquake occurs. Yes.

  For example, an anti-vibration suspension vibration damping structure disclosed in Patent Document 1 is inserted into a lower end portion of a first suspension bolt fixed to a ceiling and a slit formed in a connection piece fixed to an equipment device. By connecting the upper ends of the second suspension bolts fixed in the above manner so as to be relatively movable in the axial direction of these suspension bolts via a vibration reduction connection unit, the vibration energy applied in the event of an earthquake is moved relative to both suspension bolts. Therefore, the vibration load acting on the suspension bolt is reduced by the above-described reduction. Thereby, the vibration itself added to a suspension bolt and a connection piece can be reduced, and the fall of equipment can be prevented.

  Further, the drop-off prevention metal fitting disclosed in Patent Document 2 is a bifurcated main body plate that can be inserted from the side of the connecting piece so as to sandwich the attaching portion below or on the conventional supporting device. On the top, a protrusion that can be fitted to the slit of the connecting piece after mounting is formed. Thereby, even after construction of equipment and equipment, a drop-off prevention function can be added to the support device with a single touch.

JP 2013-167294 A JP 2013-117363 A

  However, in the anti-vibration suspension vibration damping structure of Patent Document 1, the second suspension bolt inserted into the slit of the connection piece is fixed to the connection piece by attaching a clip-shaped long nut to the lower side of the connection piece. However, since there is no detachment prevention mechanism that directly prevents the suspension bolt from being detached from the slit, it is impossible to reliably prevent the equipment from falling off when the clip-shaped long nut is removed. In addition, although the vibration damping effect of the entire apparatus is high, there are problems that the parts structure is complicated and the work is troublesome and the construction cost is high.

  Moreover, in the fall prevention metal fitting of patent document 2, although the anti-separation function was provided, since a new part was added to the conventional support apparatus, there existed a problem that construction effort increased essentially. . Furthermore, the drop-off prevention metal fitting of Patent Document 2 can be mounted on a vibration-proof support device that supports the suspension bolt and the connecting piece through a component provided with a coil spring. And there is a problem in terms of cost.

  The present invention has been made in view of such a point, and an object of the present invention is to provide an anti-vibration support device that fixes and supports a suspension bolt to a connecting piece via an anti-vibration rubber material that is most convenient and widely used. However, it is intended to prevent the suspension bolt from coming off from the slit by adding a function to prevent it from coming off without changing the component configuration to be used, the construction procedure, etc., from the conventional vibration-proof support device.

  In order to achieve the above object, according to the present invention, in the vibration-proof support device for fixing the suspension bolt to the connecting piece via the elastic material, when the suspension bolt tries to leave the opening of the slit formed in the connecting piece. A locking means for forcibly locking to the heel portion is provided in this, and the detachment of the suspension bolt is prevented by this locking.

Specifically, the anti-vibration support device according to the first aspect of the present invention is an anti-vibration support device for a ceiling-suspended facility device that is installed suspended from a ceiling via a suspension bolt, and the ceiling-suspended facility device A mounting portion that is attached to the mounting portion and extends in the horizontal direction, and a flange portion that is bent so that an end portion of the mounting portion extends downward, and the suspension bolt is inserted into the mounting portion or the hook portion. A connecting piece formed by cutting a letter-shaped slit into a bottomed shape from the flange portion to the attaching portion, and a fastening bolt fitted into the slit of the connecting piece and screwed and fastened, and the attaching portion of the connecting piece Are suspended from the upper and lower connecting members that hold the suspension bolt to the connecting piece with the upper and lower elastic bodies sandwiched between the upper elastic body and the lower elastic body, and an external force is applied between the suspension bolt and the connecting piece. Relative movement of the bolt in the direction away from the slit opening If the, in contact with at the same time a surface contact with the flange portion of the opening on both sides of the slit, and a locking means for preventing withdrawal from the opening of the slit of the hanger rod, the lower elasticity and the connecting piece A washer is arranged between the body and the locking means, and the locking means is a locking portion formed on the outer periphery of the washer and longer than the width of the slit .

In this first invention, even if an external force is applied between the suspension bolt and the connecting piece and the suspension bolt tries to move away from the opening of the U-shaped slit, the locking means comes into contact with the collar portion. The suspension bolt does not come off the slit opening. This can prevent the suspension bolt from being detached from the slit opening. Further, since only the locking means is provided in the vibration isolating support device, the vibration isolating support can be performed in the same manner as the conventional vibration isolating support device. Therefore, it is possible to prevent the vibration isolating support and the suspension bolt from coming off. And the washer arranged between the connecting piece and the lower elastic body is a component of the vibration isolating support device, and by using the locking portion formed on the outer periphery of the washer as the locking means, The anti-separation function can be easily added to the conventional vibration-proof support device. Moreover, since the said latching | locking part is longer than the width | variety of a slit, at the time of relative movement of a suspension bolt, it comes to contact the collar part of both sides of a slit reliably and with a large area, and can prevent detachment | leave of a suspension bolt. .

In the vibration-proof support device according to the second aspect of the present invention, the washer is fitted in a recess formed on the upper surface of the lower elastic body .

The vibration-proof support device according to the third aspect of the present invention is a vibration-proof support device for a ceiling-suspended facility device that is installed suspended from a ceiling via a suspension bolt, and is attached to the ceiling-suspended facility device. A mounting portion extending in the horizontal direction and a flange portion that is bent so that an end portion of the mounting portion extends downward, and a U-shaped portion into which the suspension bolt is inserted into the mounting portion or the flange portion. A connecting piece formed by cutting a slit from the collar portion to the attachment portion in a bottomed shape and a suspension bolt fitted into the slit of the connection piece are screwed and fastened. The upper and lower connecting members that fix the suspension bolt to the connection piece while being sandwiched between the upper elastic body and the lower elastic body, and an external force is applied between the suspension bolt and the connection piece so that the suspension bolt is slit. The field moved relative to the direction away from the opening To come into contact simultaneously face contact with the flange portion of the opening on both sides of the slit, and a locking means for preventing withdrawal from the opening of the slit of the hanger rod, the lower connecting with the lower elastic member A washer is disposed between the washer and the locking means is a locking portion formed on the outer periphery of the washer and longer than the width of the slit.

Also in the configuration of the third aspect of the invention, as in the case of the first aspect of the invention, it is possible to easily add a detachment prevention function. Further, the suspension bolt longer than the slit width can surely prevent the suspension bolt from being detached.

The vibration isolating support device according to a fourth aspect of the present invention is the first to third aspects, wherein the locking portion is formed at one of the positions facing the diametrical direction of the suspension bolt on the outer periphery of the washer. To do.

  In this 4th invention, the latching | locking part is partially formed in one of the positions which oppose the suspension bolt diameter direction of the outer periphery of a washer, and this latching | locking part is arrange | positioned between a collar part and a lower elastic body. By doing so, it is possible to prevent the suspension bolt from being detached from the slit.

The vibration isolating support device according to a fifth aspect of the present invention is the first to third aspects of the present invention, wherein the locking portion is formed at both the positions facing the diametrical direction of the suspension bolt on the outer periphery of the washer. To do.

  In this 5th invention, since the latching | locking part is formed in both the positions which oppose the suspension bolt diametrical direction of the outer periphery of a washer, either one of both latching | locking parts at the time of construction is used as a collar part and a lower elastic body. If it arrange | positions between, the detachment | leave from the opening of the slit of a suspension bolt can be prevented by the latching | locking part. This increases the number of options of the locking portion that can be arranged as locking means during construction, and the workability can be improved accordingly.

Further, in the vibration isolating support device according to the sixth aspect of the present invention, in the first to fifth aspects, the locking portion has a plate shape.

  In this 6th invention, since the latching | locking part is plate shape, it comes to contact a collar part in a surface contact state, and can stop the movement of a suspension bolt reliably.

  As described above, according to the present invention, in the anti-vibration support device that fixes and supports the suspension bolt to the connecting piece via the widely-used anti-vibration rubber material, the suspension bolt is prevented from being detached from the slit. By providing a stop means, the anti-separation function is added without changing the component configuration to be used and the construction procedure, etc., from the conventional anti-vibration support device, preventing not only the anti-vibration support of the ceiling-mounted equipment but also falling off. Can be planned.

FIG. 1 shows an anti-vibration support device according to a first embodiment of the present invention, FIG. 1 (a) is an overall side view when the suspension bolt is mounted, and FIG. 1 (b) is a washer and a lower elastic body. FIG. 1 (c) is a side view of the washer and the lower elastic body, FIG. 1 (d) is a plan view of the washer and the lower elastic body, and FIG. 1 (e) is a view of the washer. It is a front view of a latching | locking part. 2A and 2B show an anti-vibration support device according to a second embodiment of the present invention, FIG. 2A is an overall side view when the suspension bolt is mounted, and FIG. 2B is a connection of a washer and a lower elastic body. FIG. 2C is a side view of the washer and the lower elastic body, and FIG. 2D is a plan view of the washer and the lower elastic body. FIG. 3 shows an anti-vibration support device according to a third embodiment of the present invention, and FIGS. 3 (a) to 3 (d) are diagrams corresponding to FIG. FIG. 4 shows an anti-vibration support device according to a fourth embodiment of the present invention, and FIGS. 4 (a) to 4 (d) are diagrams corresponding to FIG. FIG. 5 shows an anti-vibration support device according to a fifth embodiment of the present invention, and FIGS. 5 (a) to 5 (d) are diagrams corresponding to FIG. FIG. 6 shows an anti-vibration support device according to a sixth embodiment of the present invention, and FIGS. 6 (a) to 6 (d) are diagrams corresponding to FIG. FIG. 7 shows an anti-vibration support device according to a seventh embodiment of the present invention, and FIGS. 7 (a) to 7 (d) are diagrams corresponding to FIG. FIG. 8 shows an anti-vibration support device according to an eighth embodiment of the present invention, and FIGS. 8 (a) to 8 (d) are diagrams corresponding to FIG. FIG. 9 shows an anti-vibration support device according to a ninth embodiment of the present invention, and FIGS. 9A to 9D are views corresponding to FIG. FIG. 10 shows a prior art anti-vibration support device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or its application.

(First embodiment)
Fig.1 (a)-(e) shows the anti-vibration support apparatus 1 which concerns on 1st Embodiment of this invention.

  As shown to Fig.1 (a), the anti-vibration support apparatus 1 which concerns on this embodiment is a ceiling-suspended installation apparatus 3 with respect to the lower end part of the suspension bolt 2 suspended from ceilings (not shown), such as a room. Is suspended and supported in a vibration-proof state. The anti-vibration support device 1 includes a connecting piece 4 attached to the side surface of the ceiling-suspended equipment 3, and an upper nut 5 and a lower nut 6 a that are screwed and fastened with the connecting piece 4 sandwiched between the suspension bolts 2. , 6b, a washer 7 disposed below the upper nut 5, an upper elastic body 9 interposed between the washer 7 and the connecting piece 4, and a washer 8 disposed above the lower nut 6a. The lower elastic body 10 interposed between the washer 8 and the connecting piece 4 and the washer 11 interposed between the lower elastic body 10 and the connecting piece 4 are provided.

  The connecting piece 4 includes a fixing portion 4d that is attached and fixed to the side surface of the ceiling-mounted equipment 3 by, for example, bolts 12 and the like, and an attaching portion 4a that protrudes in the horizontal direction from the upper end of the fixing portion 4d. Further, a flange portion 4b is formed at the distal end portion (the end portion on the side facing the fixed portion 4d) of the attachment portion 4a by bending the distal end portion so as to extend downward.

  As shown in FIG. 1 (b), the attachment portion 4a and the flange portion 4b of the connecting piece 4 are substantially at the center in the width direction, and approximately at the center in the length direction (projection direction) of the attachment portion 4a from the flange portion 4b. A U-shaped slit 4c is formed by cutting out into a bottomed shape over the entire area. The suspension bolt 2 is inserted into the bottom (notch bottom) of the U-shaped slit 4c.

  The upper nut 5 and the lower nuts 6a and 6b are for fixing the suspension bolt 2 around the attachment portion 4a of the connecting piece 4, that is, around the bottom of the slit 4c. The upper nut 5 and the lower nuts 6a and 6b have a regular hexagonal shape with a screw hole into which the suspension bolt 2 can be screwed. The upper nut 5 and the lower nuts 6a and 6b are disposed and screwed to the suspension bolts 2 fitted in the slits 4c of the connecting piece 4 on the upper and lower sides of the connecting piece 4, respectively. Then, the suspension bolt 2 is fixed to the connecting piece 4 by screwing and fastening these nuts 5, 6 a, 6 b from the upper and lower sides of the connecting piece 4. In the present embodiment, one upper nut 5 and two lower nuts 6a and 6b are provided, but it is sufficient that at least one upper nut and one lower nut are provided.

  The washers 7 and 8 prevent the upper elastic body 9 and the lower elastic body 10 from rotating when the nuts 5, 6a and 6b are screwed and fastened, and also prevent the nuts 5, 6a and 6b from loosening. belongs to. The washers 7 and 8 are provided with a hole through which the suspension bolt 2 can be inserted in the center, and have a disk shape slightly larger than the diameter of the nuts 5, 6 a and 6 b.

  As shown in FIG. 1A, the upper elastic body 9 and the lower elastic body 10 are attached in a state where the attachment portions 4a of the connection piece 4 are sandwiched from both the upper and lower sides, and the suspension bolt 2 and the connection piece 4 are directly connected. By avoiding this contact, vibration associated with the operation of the ceiling-mounted equipment 3 is prevented from being directly transmitted to the ceiling via the suspension bolt 2.

  The upper elastic body 9 has a cylindrical shape with a through hole through which the suspension bolt 2 can be inserted. This through hole has two types of large and small diameters, and the upper half of the through hole has a diameter through which the suspension bolt 2 can be inserted, whereas the lower half of the through hole has an upper half of the through hole. The diameter is larger than the diameter of the part.

  The lower elastic body 10 also includes a through hole through which the suspension bolt 2 can be inserted. However, the cross-sectional shape of the lower elastic body 10 has a circular shape with the same diameter as the circular shape of the cross-sectional shape of the upper elastic body 9, but the outer half of the upper half is cut off. Therefore, the lower elastic body 10 includes a substantially cylindrical base body 10a having a flat surface on the upper surface. A cylindrical protrusion 10b is concentrically provided on the upper surface (flat surface) of the base 10a, and a through hole of the base 10a extends to the tip of the protrusion 10b at the center of the protrusion 10b. . The thickness of the wall of the protrusion 10 b corresponds to the difference between the diameter of the upper half and the diameter of the lower half of the through hole of the upper elastic body 9 and is connected by the upper elastic body 9 and the lower elastic body 10. When the piece 4 is sandwiched, the protrusion 10 b is fitted in close contact with the lower half of the through hole of the upper elastic body 9. Therefore, the height of the protrusion 10 b is a height obtained by adding the height of the lower half of the upper elastic body 9 and the thickness of the connecting piece 4.

  Accordingly, as shown in FIG. 1A, the suspension bolt 2 inserted through the upper elastic body 9 and the lower elastic body 10 is inserted into the slit 4c of the connecting piece 4 between the elastic bodies 9 and 10, and the suspension bolt When the connecting piece 4 is sandwiched between the upper and lower elastic bodies 9 and 10 by the nuts 5, 6 a and 6 b screwed to 2, the suspension bolt 2 and the connecting piece 4 into which the suspension bolt 2 is fitted are inserted. Since the protrusion 10b of the lower elastic body 10 exists between the bottom of the slit 4c, the suspension bolt 2 and the connecting piece 4 are held in a non-contact state.

  Thereby, since the vibration generated by the operation of the ceiling-suspended equipment 3 is not directly transmitted to the suspension bolt 2, the ceiling-suspended equipment 3 can be stably supported in a vibration-proof manner.

  Further, as can be seen from FIG. 1 (c), recessed portions are formed on the upper and lower surfaces of the base 10a of the lower elastic body 10 to which the washers 8 and 11 are fitted, respectively. The depth of each recess corresponds to the thickness of each washer, and when both washers 8 and 11 are fitted to the lower elastic body 10, the surface of the washers 8 and 11 and the upper surface of the base body 10a. Alternatively, the portions other than the recessed portion on the lower surface are flush with each other. A mode in which the upper washer 11 is fitted into the recessed portion of the base body 10a will be described in detail later.

  The washer 11 basically has the same disk shape as the washer 8, and has a semi-oval horizontal portion 11a in which a part of the outer periphery extends outward in the radial direction of the disk shape. A hole through which the protrusion 10b of the lower elastic body 10 can be inserted is formed in the center of the disk portion of the horizontal portion 11a. A locking portion 11b bent at a right angle downward from the horizontal portion 11a is formed at the tip of the portion extending radially outward of the horizontal portion 11a, as shown in FIGS. 1 (d) and 1 (e). Thus, this latching | locking part 11b has the shape where the both ends of the width direction extended the both sides longer than the width | variety of the horizontal part 11a. Thereby, the latching | locking part 11b has a plate shape longer than the width | variety of the opening of the slit 4c of the connection piece 4. As shown in FIG.

  As described above, the washer 11 is fitted in the recessed portion on the surface of the lower elastic body 10 on which the protrusion 10b of the base body 10a is formed. At this time, as shown in FIG. 1C, the protrusion 10b of the lower elastic body 10 is inserted into the hole of the washer 11, and the horizontal portion 11a of the washer 11 is fitted into the recessed portion on the surface of the base 10a. . And the latching | locking part 11b of the washer 11 front-end | tip part is contact-held by the flat surface of the base | substrate 10a.

  As shown in FIG. 1A, when the washer 11 is disposed between the connecting piece 4 and the lower elastic body 10, the washer 11 held in contact with the flat surface of the base body 10 a of the lower elastic body 10. The locking portion 11b is disposed on the flange 4b side of the connecting piece 4. As a result, the locking portion 11b of the washer 11 is relatively moved in a direction in which an external force is applied between the suspension bolt 2 and the connection piece 4 due to an earthquake or the like, and the suspension bolt 2 is removed from the opening of the slit 4c of the connection piece 4. In this case, the hook 4 is simultaneously brought into contact with the flanges 4b on both sides of the opening of the slit 4c in a surface contact state, and becomes a locking means for preventing the suspension bolt 2 from being detached from the opening of the slit 4c. That is, in the present embodiment, the washer 11 is disposed between the connecting piece 4 and the lower elastic body 10, and the slit 4 c is provided at one of the positions of the outer periphery of the washer 11 facing the diametrical direction of the suspension bolt 2. The latching part 11b longer than the width of the connecting part 4 is formed, and the latching part 11b is disposed between the flange part 4b of the connecting piece 4 and the lower elastic body 10, whereby the suspension bolt 2 is detached from the slit 4c. Try to prevent.

  Therefore, in this embodiment, by adopting the configuration as described above, an external force is applied between the suspension bolt 2 and the connecting piece 4 so that the suspension bolt 2 is detached from the opening of the U-shaped slit 4c. Even if it is about to move, the locking portion 11 b disposed between the flange portion 4 b and the lower elastic body 10 contacts the flange portion 4 b of the connecting piece 4. Thus, the suspension bolt 2 is not detached from the opening of the slit 4c, and the suspension bolt 2 can be prevented from being detached.

  Further, at that time, the locking portion 11b is longer than the width of the slit 4c and has a plate shape. Therefore, when the suspension bolt 2 is moved relative to the flange 4b on both sides of the slit 4c, the surface of the locking portion 11b surely covers a large area. It can be contacted in a contact state, the movement of the suspension bolt can be reliably stopped, and the separation can be reliably prevented. And since the cross-sectional shape of the lower elastic body 10 is the same circular shape as a normal thing, it can be combined with any connection piece and a suspension bolt, and it is excellent in versatility and workability is also improved.

  Further, the washer 11 is a component of the vibration isolating support device 1. By using the locking portion 11b formed on the outer periphery of the washer 11 as the locking means, the same as the conventional vibration isolating support device. Anti-vibration support can be performed, and the suspension bolt 2 can be easily prevented from coming off.

(Second Embodiment)
2A to 2D show an anti-vibration support device 1 according to a second embodiment of the present invention. In describing the following embodiments, the same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, the lower elastic body 10 has a flat surface on the upper surface of the base body 10a, as in the first embodiment, but the flat surfaces are on both sides of the position facing the diametrical direction of the suspension bolt 2. Is formed.

  In addition to the locking portion 11b, the washer 11 includes another locking portion 11c at a position facing the locking portion 11b. In other words, in the present embodiment, the locking portions 11 b and 11 c are formed at both positions on the outer periphery of the washer 11 that face the diameter direction of the suspension bolt 2.

  When the washer 11 is fitted to the lower elastic body 10, the locking portions 11b and 11c come into contact with both flat surfaces of the base body 10a of the lower elastic body 10 and are stably held. Other configurations are the same as those of the first embodiment.

  According to this configuration, the locking portions 11b and 11c are formed at both positions in the diametrical direction of the suspension bolt 2 on the outer periphery of the washer 11, so that both the locking portions 11b are used when the vibration isolating support device 1 is constructed. , 11c is disposed between the flange 4b and the lower elastic body 10, the opening of the slit 4c of the suspension bolt 2 by the locking portion 11b (or 11c) disposed on the flange 4b side. Can be prevented from leaving. This increases the number of options of the locking portion that can be arranged as locking means during construction, and the workability can be improved accordingly.

(Third embodiment)
FIGS. 3A to 3D show an anti-vibration support device 1 according to a third embodiment of the present invention.

  In the present embodiment, the lower elastic body 10 has a base body 10a whose cross-sectional shape in a direction perpendicular to the axis of the suspension bolt 2 is rectangular. Further, the horizontal portion 11a of the washer 11 has a rectangular shape and is fitted into a recessed portion formed on the upper surface of the base body 10a. Further, the locking portion 11 b has the same width as the base body 10 a of the lower elastic body 10. Other configurations are the same as those of the first embodiment.

  According to the present configuration, the locking portion 11b formed on the washer 11 can be disposed on the entire side surface of the lower elastic body without providing a flat surface on the base body 10a unlike the lower elastic body 10 of the first and second embodiments. It is possible to stably hold the locking portion 11b and maintain the locking function of the locking portion 11b.

(Fourth embodiment)
4A to 4D show a vibration isolating support device 1 according to a fourth embodiment of the present invention.

  In the present embodiment, the base body 10a of the lower elastic body 10 has a rectangular cross-sectional shape as in the third embodiment. The washer 11 has another locking portion 11c at a position facing the locking portion 11b. Both the locking portions 11b and 11c have the same width and contact the entire side surface of the base 10a of the lower elastic body 10. Other configurations are the same as those of the first embodiment.

  Thereby, while being able to maintain stably the latching function of latching | locking part 11b, 11c, the choice of the latching | locking part which can be arrange | positioned as a latching means at the time of construction increases, and workability is improved by that much. it can.

(Fifth embodiment)
FIGS. 5A to 5D show an anti-vibration support device 1 according to a fifth embodiment of the present invention.

  In the present embodiment, as shown in FIG. 5D, the washer 11 is configured such that the horizontal portion 11a of the washer 11 contacts the entire surface on which the protrusion 10b of the lower elastic body 10 is formed. . In the present embodiment, the locking portions 11 b and 11 c are formed by bending the end of the washer 11 with a predetermined curvature, and the width of the locking portions 11 b and 11 c is that of the washer 11 and the lower elastic body 10. It is the same as the width of the base 10a. Further, in the base 10 a of the lower elastic body 10, the portion where the bent portions of the locking portions 11 b and 11 c of the washer 11 come into contact has a shape having the same curvature as that of the bending, and the lower elasticity of the washer 11. The entire surface in contact with the body 10 is in contact with the base 10 a of the lower elastic body 10. Other configurations are the same as those of the first embodiment.

  In the case of this embodiment, it is not necessary to form a recessed portion into which the washer 11 is fitted in the lower elastic body 10, and the lower elastic body 10 can be easily molded. Moreover, while being able to maintain stably the latching function of the latching | locking parts 11b and 11c, the choice of the latching | locking part which can be arrange | positioned as a latching means at the time of construction increases, and it can improve workability by that much. .

  In addition, in 1st-5th embodiment, since the protrusion 10b of the lower elastic body 10 exists between the hole of the washer 11 and the suspension bolt 2, the latching | locking part is carried out by relative movement of the suspension bolt 2. As shown in FIG. Even if 11b contacts the flange 4b of the connecting piece 4, the non-contact state between the connecting piece 4 or the washer 11 and the suspension bolt 2 is maintained, and the vibration-proof support is ensured.

(Sixth embodiment)
FIGS. 6A to 6D show an anti-vibration support device 1 according to the sixth embodiment of the present invention.

  In the present embodiment, as shown in FIGS. 6A and 6C, the base body 10a of the lower elastic body 10 is substantially a cylinder similar to that of the first embodiment. A locking portion 8b longer than the width of the slit 4c of the connecting piece 4 is provided on the outer periphery of the washer 8 disposed between the elastic body 10 and the lower nut 6a, and this is used as locking means. In addition, in this structure, the washer 11 (refer FIGS. 1-5) arrange | positioned between the connection piece 4 and the lower elastic body 10 is abbreviate | omitted in 1st-5th embodiment.

  According to this configuration, as in the first to fifth embodiments, it is possible to easily add an anti-separation function, and to reliably remove the suspension bolt 2 by the locking portion 8b longer than the width of the slit 4c. Can be prevented. Moreover, since the effort which forms and constructs the washer 11 arrange | positioned between the connection piece 4 and the lower elastic body 10 is abbreviate | omitted, while improving workability, construction cost can be reduced.

(Seventh embodiment)
FIGS. 7A to 7D show an anti-vibration support device 1 according to a seventh embodiment of the present invention.

  In the present embodiment, as in the sixth embodiment, the locking portion 8b is formed on the outer periphery of the washer 8 disposed between the lower elastic body 10 and the lower nut 6a. Similarly to the third embodiment, the ten base bodies 10a have a rectangular cross-sectional shape in a direction perpendicular to the axis of the suspension bolt 2.

  According to this configuration, the locking portion 8b formed on the washer 8 can be brought into contact with the entire side surface of the lower elastic body 10 and stably held, and the locking function of the locking portion 8b can be stably maintained. can do.

(Eighth embodiment)
8A to 8D show an anti-vibration support device according to an eighth embodiment of the present invention.

  In the present embodiment, another locking portion 8c having the same shape as the locking portion 8b is formed at a position facing the locking portion 8b of the washer 8.

  That is, in this embodiment, since the latching | locking part 8b, 8c is formed in both the positions which oppose the diameter direction of the suspension bolt 2 of the outer periphery of the washer 11, either of both latching | locking part 8b, 8c at the time of construction If one of them is disposed between the flange 4b and the lower elastic body 10, it is possible to prevent the suspension bolt 2 from being detached from the opening of the slit 4c by the locking portion disposed on the flange 4b side. . This increases the number of options of the locking portion that can be arranged as locking means during construction, and the workability can be improved accordingly.

  In the first to eighth embodiments, the locking portions 8b, 8c, 11b, and 11c are brought into contact with the flange portions 4b located on both sides of the slit 4c of the connecting piece 4 in a surface contact state. 2 has a function of preventing separation of the slit 4c in the opening direction. Therefore, any shape other than the plate shape as described above may be used as long as the shape is in surface contact with the flange portions 4b on both sides of the slit 4c. Specifically, for example, the end portions of the washers 8 and 11 may not be bent and may have a shape longer than the width of the slit 4c having a shape in which both ends of the front end portion are extended in the width direction. Moreover, you may have the thing of the projection shape which protruded to the collar part 4b side at the both ends of the width direction of plate-shaped latching | locking part 8b, 8c, 11b, 11c. By adopting such a shape, the protrusions formed on the locking portions 8b, 8c, 11b, and 11c come into contact with the flange portion 4b in a surface contact state to stop the movement of the suspension bolt 2 and prevent its separation. Can do.

  Further, as described above, in the first, second, and sixth embodiments, the lower elastic body 10 has a circular cross-sectional configuration in a direction perpendicular to the axis of the suspension bolt 2. Thereby, it can be combined with any connecting piece and suspension bolt, and it is excellent in versatility and improves workability.

  Further, as described above, in the third to fifth, seventh, and eighth embodiments, the lower elastic body 10 has a rectangular cross-sectional shape in a direction perpendicular to the axis of the suspension bolt 2. Accordingly, the locking portions 8b, 8c, 11b, and 11c formed on the washers 8 and 11 can be brought into contact with the entire side surface of the lower elastic body 10, and the locking portions 8b, 8c, 11b, and 11c are engaged. The stopping function can be stably maintained.

(Ninth embodiment)
FIGS. 9A to 9D show an anti-vibration support device 1 according to the ninth embodiment of the present invention.

  In the present embodiment, unlike the above embodiments, the lower elastic body 10 itself constitutes the locking means. That is, the base body 10a of the lower elastic body 10 has a rectangular cross-sectional shape in a direction perpendicular to the axis of the suspension bolt 2, and the side surface of the base body 10a of the lower elastic body 10 on the side of the flange 4b is a locking means. It has become.

  According to this configuration, by using the side surface of the base body 10a of the lower elastic body 10, which is an existing component, as the locking means, a separate member for the locking means becomes unnecessary. And since the process which forms a latching | locking part in the washer 8 or the washer 11 like the 1st-8th embodiment becomes unnecessary, a come-off prevention function can be added to an anti-vibration support apparatus more simply. Further, since there are four side surfaces of the lower elastic body, any of the side surfaces may be used as a locking means, and workability is improved.

  In the first to ninth embodiments, the washers 8 and 11 can be formed integrally with the lower elastic body 10. With this configuration, the labor for assembling the washers 8 and 11 and the lower elastic body 10 separately is omitted, and the workability can be improved reliably.

  The present invention can be added to the conventional vibration-proofing support device without any change in the component configuration to be used, the construction procedure, etc., and thus is extremely useful and has industrial applicability. high.

DESCRIPTION OF SYMBOLS 1 Anti-vibration support apparatus 2 Suspension bolt 3 Ceiling-type equipment 4 Connection piece 4a Mounting part 4b Eaves part 4c Slit 5 Upper nut (connector)
6a, 6b lower nut (connector)
8 Washers 8b, 8c Locking part (locking means)
9 Upper elastic body 10 Lower elastic body 11 Washer 11b, 11c Locking part (locking means)

Claims (6)

An anti-vibration support device for a ceiling-suspended facility device that is installed suspended from a ceiling via a suspension bolt,
A mounting portion that is attached to the ceiling-suspended equipment and extends in a horizontal direction; and a flange portion that is bent so that an end portion of the mounting portion extends downward. A connection piece formed by cutting a U-shaped slit into which a bolt is inserted from the collar part to the attachment part in a bottomed shape,
The suspension bolt is screwed and fastened to a suspension bolt inserted into the slit of the connection piece, and the suspension bolt is connected to the connection piece with the attachment portion of the connection piece sandwiched from the upper and lower sides via the upper elastic body and the lower elastic body, respectively. The upper and lower couplings to be fixed,
When an external force is applied between the suspension bolt and the connecting piece and the suspension bolt moves relative to the direction away from the opening of the slit, it contacts the flanges on both sides of the opening of the slit simultaneously in a surface contact state, A locking means for preventing the suspension bolt from coming off from the opening of the slit ,
A washer is disposed between the connecting piece and the lower elastic body;
The anti-vibration support device is characterized in that the locking means is a locking portion formed on the outer periphery of the washer and longer than the width of the slit . The anti-vibration support device according to claim 1 , wherein the washer is fitted into a recessed portion formed on an upper surface of the lower elastic body . An anti-vibration support device for a ceiling-suspended facility device that is installed suspended from a ceiling via a suspension bolt,
A mounting portion that is attached to the ceiling-suspended equipment and extends in a horizontal direction; and a flange portion that is bent so that an end portion of the mounting portion extends downward. A connection piece formed by cutting a U-shaped slit into which a bolt is inserted from the collar part to the attachment part in a bottomed shape,
The suspension bolt is screwed and fastened to a suspension bolt inserted into the slit of the connection piece, and the suspension bolt is connected to the connection piece with the attachment portion of the connection piece sandwiched from the upper and lower sides via the upper elastic body and the lower elastic body, respectively. The upper and lower couplings to be fixed,
When an external force is applied between the suspension bolt and the connecting piece and the suspension bolt moves relative to the direction away from the opening of the slit, it contacts the flanges on both sides of the opening of the slit simultaneously in a surface contact state, Locking means for preventing the suspension bolt from coming off the slit opening;
With
A washer is disposed between the lower elastic body and the lower connector,
It said locking means, vibration isolating support device you wherein a long engaging portion than the width of the formed and the slits on the outer periphery of the washer. The anti-vibration support device according to any one of claims 1 to 3 , wherein the locking portion is formed at one of positions opposed to the diameter direction of the suspension bolt on the outer periphery of the washer. The anti-vibration support device according to any one of claims 1 to 3 , wherein the locking portions are formed at both positions facing the suspension bolt in the diameter direction on the outer periphery of the washer. The anti-vibration support device according to any one of claims 1 to 5, wherein the locking portion has a plate shape.

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