JP3034022U - Parallel installation type anti-vibration and sound insulation stand - Google Patents

Abstract

(57) [Abstract] [Problem] A parallel installation type vibration isolation / insulation stand that reduces vertical movement due to load fluctuations and does not transmit vibrations and noise of the mounted machine to the floor. SOLUTION: An underframe 21 having side surfaces having openings 22 is projected from both ends of a lower frame 20, and a plurality of conical coil springs 26 are symmetrically arranged around a stopper bolt 11 on each underframe. A vibration absorbing device 25 in which a spring is enclosed and housed in an elastic rubber housing 28 is provided, and a stopper bolt protruding from the lower surface of the upper frame 10 projects to the lower surface of the underframe and is fastened with a nut 13 via a cushion body 12. There is.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a vibration-proof and sound-insulating pedestal in which linear pedestals are installed in parallel and used.

[0002]

[Prior art]

 As shown in FIG. 6, in the conventional vibration-proof frame, a plurality of vibration-absorbing bodies 3 can be adjusted between the upper frame 1 and the lower frame 2 whose stoppers 4 prevent the upper frame from falling and the maximum height is restricted. In order to enhance the vibration absorption effect, the springs incorporated in the vibration absorber were coil springs with a constant spring constant. For this reason, when the installed machine is, for example, a pump for pumping, there is a drawback that a severe depression occurs every time the pump is started, and an unreasonable force is applied to the connected piping. Further, the above-mentioned device has the drawback that the position adjustment of the vibration absorber 3 is troublesome and that vibrations and sounds are transmitted to the lower pedestal 2 and the floor via the outer casings 3a and 3b.

[0003]

[Problems to be solved by the device]

 This plan provides a vibration and sound insulation mount that does not cause vertical movement of the upper mount even with a large impact load and does not affect the connection piping.In addition, operations such as position adjustment of the vibration absorber are unnecessary. It provides a mount.

[0004]

[Means for Solving the Problems]

 The anti-vibration and sound insulation mount of the present invention has a frame with open side faces projecting from both ends on each lower frame that constitutes a pair of parallel frames, and a non-linear coil spring such as a conical coil spring is mounted on each frame. A plurality of symmetrically arranged springs are provided around the stopper bolt insertion hole, and a vibration absorbing device is provided in which each of these springs is enclosed and housed in an elastic rubber frustum-shaped housing, and is fixed to the lower surface of the upper stand by projecting. The stopper bolt penetrates the bolt insertion hole of the vibration isolator and the underframe and is fastened with a nut via a cushion body. The vibration absorbing device used in the vibration isolating mount of the present invention does not have to be a connecting body as shown in the figure, and one spring may be housed and contained in one elastic rubber frustum-shaped casing. The number of non-linear springs symmetrically arranged around the stopper bolt is 3 to 4.

[0005]

【effect】

 Since the device of the present invention has the above-mentioned configuration, it can be easily manufactured, and since the vibration absorber in the device of the present invention has a non-linear coil spring built-in, the amount of deformation with respect to a large load is small, and the upper and lower surfaces of the spring and the entire circumference are Since it is surrounded by an elastic rubber body, it has excellent sound insulation and completely isolates the upper and lower pedestals from vibration and acoustics. Further, even if the vibration absorbers are individually arranged instead of being connected to each other, there is no need to adjust the position after manufacturing. Furthermore, since both sides of the underframe are opened, it is possible to easily adjust the level of the upper frame or the preload of the spring.

[0006]

[Embodiment of the invention]

 In the figure, reference numeral 10 denotes an upper mount, and stopper bolts 11 are vertically fixed to the lower surface of each end. Reference numeral 20 denotes a lower mount, and a U-shaped base frame 21 having openings 22 on the side surfaces is fixedly provided on the upper surfaces of both ends. Reference numeral 23 is an upper plate of the underframe, and 24 is a stopper bolt insertion hole. The underframe can be formed by a remaining member obtained by punching out a part of the lower frame, or can be formed together with the underframe 21 and the fixing ear piece 21a. Reference numeral 25 denotes a vibration absorbing device, in which 3 to 4 conical coil springs and other non-linear coil springs 26 are symmetrically arranged around the bolt insertion hole 27 and each of these panels is made of an elastic rubber frustum. The housing 28 is housed so as to be wrapped. Therefore, the conical coil spring 26 is fixed on the upper plate 23 of the underframe by surrounding the upper surface, the lower surface and the entire circumference with elastic rubber. The figure shows an example of four frustum-shaped casings connected in series, and the common base plate portion 29 of the casing is formed in a rectangular shape. The stopper bolt 11 penetrates the bolt insertion hole 27 of the elastic rubber housing and the insertion hole 24 of the underframe to protrude to the lower surface of the underframe upper plate, and is fastened by the adjusting nut 13 via the cushion body 12. The nut 13 can be easily rotated and adjusted from the side opening 22.

[Brief description of the drawings]

FIG. 1 is a plan view showing an arrangement state of a parallel mount.

FIG. 2 is a side view of the gantry base.

FIG. 3 is an enlarged plan view of an end portion of a lower mount.

FIG. 4 is an enlarged side view of a pedestal end portion.

FIG. 5 is an enlarged front view of the gantry.

FIG. 6 is a side view of a conventional mount.

[Explanation of symbols]

 10 Upper Stand 11 Stopper Bolt 12 Cushion Body 13 Nut 20 Lower Stand 21 Stand Frame 22 Side Opening 23 Stand Frame Upper Plate 24 Stopper Bolt Insertion Hole 25 Vibration Absorber 26 Non-Linear Coil Spring 27 Bolt Insertion Hole 28 Elastic Rubber Frustum Shape Case

Claims (3)

[Utility model registration claims] 1. A base frame having side surfaces opened at both ends of each of the lower mounts forming a pair of parallel mounts and a non-linear coil spring such as a conical coil spring for inserting a stopper bolt on the base frame. A vibration absorbing device is provided in which a plurality of springs are symmetrically arranged around the hole and are enclosed and housed in each of the elastic rubber frustum-shaped casings, and stopper bolts protrudingly fixed to the lower surface of the upper mount are provided. A parallel installation type vibration-proof and sound-insulating mount, which is formed by penetrating the bolt insertion hole of the vibration control device and the underframe and fastening a nut through a cushion body. 2. A vibration absorbing device, wherein one non-linear coil spring is encased and housed in one elastic rubber frustum-shaped casing,
The vibration-proof and sound-insulating mount according to claim 1, wherein a plurality of the vibration-absorbing devices are symmetrically arranged around the stopper bolt. 3. The vibration-proof and sound-insulating mount according to claim 1, wherein the number of nonlinear coil springs is three or four.