JP2018028389A - Vibration proof pad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration proof pad having liquid in a bag body that is facilitated moving in the bag body in accordance with a shape of a vibrator or vibration tool so that the liquid reliably blocks a material wave such as a continuous shock wave propagating to a substance, thereby reducing propagation of the wave to a human body.SOLUTION: A vibration proof pad has a liquid encapsulation container in which films are laminated, the peripheral edge part thereof is crimped and liquid is encapsulated therein. In the liquid encapsulation container, inner surface sides are crimped partially toward an inside from the peripheral edge part or in an island-like manner.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an anti-vibration pad in which vibration of a vibration device or a vibration tool is difficult to be transmitted to an operator's body.

  Most vibrations are caused by material waves that travel through the material, such as continuous shock waves. In that case, the two liquids have the property of not transmitting the S wave, which is the main component of the material wave. Japanese Patent Application Laid-Open No. 2014-105399 and Japanese Patent Application Laid-Open No. 2015-94448 have been made so that the physical properties of this liquid can be used as a vibration isolator. This was created by the inventor of the present application, and the bag container in which the liquid is sealed is arranged in a plane, and when operating on the handle of the vibration device or the vibration tool through the surface, Since the liquid has the property of not transmitting the S wave, which is the main component of the material wave, to the hand, it is possible to reduce a wide range of influences on various human bodies due to vibration. Japanese Patent Laying-Open No. 2015-94448 describes a structure in which a bag container is divided into a plurality of parts through a heat-sealed insulating part. Japanese Patent Application Laid-Open No. 2014-105399 describes that the bag container is divided into a plurality of shapes according to the shape of the hand, and is deformed in a three-dimensionally flexible manner. ing.

JP 2014-105399 A Japanese Patent Laying-Open No. 2015-94448

  However, in the above, since the plurality of liquids in the bag-like container arranged in a plane are divided and independent from each other, the amount of sealing is important, but according to the shape of the vibration device or the vibration tool, It was quite troublesome to adjust the amount of liquid contained in the body.

  The present invention solves the above-mentioned problems, and the object of the present invention is to make it easy for the liquid in the bag container to move in the bag according to the shape of the vibration device or the vibration tool, and so on. An object of the present invention is to provide an anti-vibration pad that can reliably block a material wave that travels through the material from being transmitted to the human body.

In order to solve the above-described problems, the present invention provides the following vibration-proof pads.
(1) In a vibration-proof pad having a liquid-sealed container in which a film is stacked, a peripheral edge thereof is crimped, and a liquid is enclosed, the liquid-sealed container is partially penetrating inward from the peripheral edge An anti-vibration pad characterized in that the inner side is crimped in an island shape.
(2) The anti-vibration pad according to (1), wherein the peninsula-like portion, the island-like portion, or the peripheral edge portion is pressure-bonded with a slit interval.
(3) The anti-vibration pad according to (1) or (2), wherein water or an aqueous solution is used as the liquid enclosed in the liquid enclosure.
(4) In the above (1), (2) or (3), an exterior body having a part integrated with a crimping part of the liquid enclosure is provided outside the liquid enclosure. Anti-vibration pad.
(5) The anti-vibration pad according to (1), (2), (3) or (4), wherein a finger ring into which a finger can be inserted is provided on the outer surface.

  According to the present invention, the liquid in the bag container easily moves in the bag according to the shape of the vibration device or the vibration tool, and the liquid reliably blocks the material wave transmitted through the substance such as a continuous shock wave. , Can reduce the transmission to the human body.

The schematic plan view of the liquid enclosure of the vibration-proof pad of this invention is shown. The schematic plan view of another liquid enclosure of the vibration-proof pad of this invention is shown. The schematic sectional drawing of the liquid enclosure container with the outer bag of the vibration isolating pad of this invention is shown. The schematic plan view of the liquid enclosure container with the outer bag of the circular vibration-proof pad of this invention is shown. The schematic sectional drawing of the liquid enclosure container with the outer bag of the circular vibration-proof pad of this invention is shown. The usage example of the circular vibration-proof pad of this invention is shown with the perspective view. The schematic plan view of another liquid enclosure of the vibration-proof pad of this invention is shown.

  The film of the present invention is a thin material constituting a liquid enclosure, and at least one side is made of thermoplastic resin such as vinyl chloride, polycarbonate, acrylonitrile butadiene styrene resin, nylon, polypropylene, polyethylene, polyacetal, polyester, polyurethane, etc. Etc. are available. When the film is stretched or densified, the film strength can be improved. A thickness of about 30 μm to about 3 mm can be used. If it is 30 μm or less, the strength is insufficient, and if it is 3 mm or more, the flexibility tends to decrease, and it is difficult to fit a vibration device or a vibration tool.

  The liquid sealed container of the present invention is a container in which films are stacked or folded, and the peripheral edge and the like thereof are pressure-bonded, and can seal the liquid poured into the inside.

The slit of the present invention is provided in the liquid enclosure, and is not crimped between the overhanging crimping portion and the peripheral crimping portion of the opposite bank, or between the island-shaped crimping portion, or between the island-shaped crimping portion and the opposite bank. The liquid in the divided liquid enclosure is allowed to move little by little from one side to the other through the slit between the non-crimped gaps between the parts. The slit interval is about 0.5 mm to 5 mm when the liquid enclosure is smaller than the hand, and is about 2 mm to 10 mm when the liquid enclosure is larger than the hand, and generally increases in proportion to the overall size.
By doing this, according to the shape of the vibration device and the vibration tool, the amount of liquid in the liquid enclosure can be adjusted as much as necessary for the necessary part of the liquid enclosure, and with irregular power, The distribution of the amount of liquid in the liquid enclosure can be prevented from changing suddenly, and a stable vibration isolation effect can be obtained.

  The liquid of the present invention is a fluid that is put in a liquid enclosure, and water can be used in terms of easy handling. In the case of cold districts, an aqueous solution of a salt that does not freeze, an inorganic salt such as calcium chloride, or an aqueous solution of a water-soluble organic substance such as sugar or glucose can be used. The degree of freezing point depression is proportional to the molar mass concentration of the solute regardless of the type of solute, so that the inorganic salt has a smaller molecular weight in many cases, and it is difficult to freeze with a small amount.

  The exterior body of the present invention is provided outside the liquid enclosure, and protects the liquid enclosure or prevents liquid leakage. If there is an air layer between the liquid enclosure container, it is difficult to obtain vibration proofing performance. In order to be used as a vibration isolator for a machine having power, it is preferable to use a material whose outer surface is difficult to slip, such as urethane or rubber, or a shape that does not stuffy, such as an uneven structure. Further, the surface may be processed into a plurality of dots of urethane or rubber or printed.

  The finger ring of the present invention is an annular one provided on the surface of a liquid enclosure or an exterior body, for inserting a finger of a hand. When it is installed in a liquid enclosure, it can be fixed by crimping or bonding, and when it is installed on an exterior body, it can also be sewn.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic plan view of a liquid-sealed container of a vibration-proof pad according to the present invention. FIG. 2 shows a schematic plan view of another liquid enclosure of the vibration-proof pad of the present invention.
The liquid 3 is enclosed by the peripheral crimping part 2 which overlap | superposed the film 1 and the peripheral part crimped | bonded. In FIG. 1, the film 1 of the liquid enclosure 4 is partially inward from the peripheral crimping part 2 in FIG. In FIG. 2, an overhanging crimping portion 5 in which inner surfaces are crimped is provided, and in FIG. 2, an island-like crimping portion 6 that is crimped at an interval is provided inside the liquid enclosure 4.

  The external shape of the liquid enclosure 4 and the shape of the overhang crimping portion 5 are appropriately designed according to the shape of the vibration device or the vibration tool and the shape of the human body part in contact therewith. In FIG. 1 or FIG. 2, the outline plan view is rectangular, but it may be square, polygonal or circular. Further, there is no particular limitation in the three-dimensional shape such as a planar shape, a spherical shape, and a columnar shape. Since there is little liquid 3 around the overhanging crimping part 5 and the island-like crimping part 6, the liquid enclosure 4 is a part that is easily deformed such as bending.

FIG. 3 is a schematic cross-sectional view of the AA portion of the vibration-proof pad of the present invention shown in FIG.
The exterior body 7 is provided so as to cover the surface of the liquid enclosure 4.
The liquid sealed container 4 includes an island-shaped crimping portion 6 that is crimped at the center portion, and a peripheral crimping portion 2 that is integrated with the exterior body 7 at the peripheral portion. The peripheral crimping portion 2 is sewn with a peripheral tape 8 so as to cover the end surface in a U-shaped cross section, but may be reinforced by other methods.

4 to 6 show a case where the vibration-proof pad of the present invention is circular.
FIG. 4 is a schematic plan view of a liquid-sealed container of a circular vibration-proof pad according to the present invention. FIG. 5 is a schematic cross-sectional view of the BB portion of the vibration-proof pad of the present invention shown in FIG. FIG. 6 is a perspective view showing an example of use of the circular vibration-proof pad.

  The liquid enclosure 4 in FIG. 4 encloses the liquid 3 by the peripheral crimping part 2 in which the film 1 is overlapped and the peripheral part thereof is crimped, and the island-like crimping parts 6 are provided at intervals, particularly the central part. 6a is relatively long and provided so that the liquid enclosure 4 is divided into semicircles. As shown in FIG. 6, when the anti-vibration pad 9 is sandwiched between the thumb of the hand and other fingers, the center portion of the anti-vibration pad 9 is easily bent. In addition, the island-shaped crimping portion 6 is also provided at the bending portion of the four joints other than the thumb, so that it can be easily bent and bent in a U-shape.

Further, as shown in FIG. 6, by providing a finger ring 10 into which a finger can be inserted on the outer surface of the circular vibration-proof pad 9, it is possible to stably hold the vibration device and the vibration tool.
Since the circular vibration-proof pad 9 has a rounded and narrow fingertip direction, when the cylindrical shaft or handle is gripped by the circular vibration-proof pad 9, the index finger 11 of the gripped hand is moved to the vibration-proof pad 9. Easy to stick out. Therefore, by removing the index finger 11 from the finger ring 10 and making it free, the switch and the accelerator operation can be performed easily.

Further, as shown in the schematic cross-sectional view of FIG. 5, the outer package 7 is more overlapped with the film 1 than that of FIG. 3. For this reason, the anti-vibration performance is further improved.
This type of pad can be used for vibration isolation of handy type small power tools including pencil-grip type electric grindstone tools.
Already a little touched, hand-held tools have a cylindrical handle and many switches and accelerators use the index finger. In the case of the pad used in this structure, grabbing the handle with a circular shape naturally frees the index finger and is convenient for operating the accelerator.
In the case of a structure that does not use the right index finger in machine operation, the rectangular pad is easy to use.

FIG. 7 shows a schematic plan view of another liquid enclosure of the vibration-proof pad of the present invention.
The liquid 3 is enclosed by the peripheral crimping part 2 which overlap | superposed the film 1 and the peripheral part crimped | bonded, The film of the liquid enclosure container 4 is partially inward from the peripheral crimping part 2 in the left side of FIG. 1 has an overhang crimping portion 5 to which the inner surface sides are crimped, and the gap between the overhang crimping portion 5 and the peripheral crimping portion 2 on the opposite bank is a slit 12. Further, on the right side of FIG. 7, an island-shaped crimping portion 6 that is crimped at intervals is provided inside the liquid enclosure 4. And the space | interval of the island-shaped crimping | compression-bonding part 6 and the island-shaped crimping | compression-bonding part 6 and the peripheral crimping | compression-bonding part 2 of the opposite bank is the slit 12.
In other words, the liquid enclosure shown in FIG. 7 is divided into three parts, and the divided neighbors allow liquid to move through the slits 12.

  The present invention relates to an anti-vibration pad in which vibration of a vibration device or a vibration tool is difficult to be transmitted to an operator's body, and operates a vibration machine (metal saw, electric rock drill, cutting grindstone machine, etc.). It is useful to ensure the safety and security of workers. Not only can it be used on the hands, but it can also be used for vibration isolation of the feet or parts of the body such as the shoulders and back. The feet are integrated into the footwear or insole. It can be used for engine vibrations of the ship itself, and for vehicles such as buses and trucks, the vibrations of the accelerator, clutch and brake parts. Further, it can be used for a vibration isolator for a saddle portion of a bicycle, and has wide industrial applicability.

  DESCRIPTION OF SYMBOLS 1 ... Film, 2 ... Perimeter crimping part, 3 ... Liquid, 4 ... Liquid enclosure, 5 ... Overhang crimping part, 6 ... Island-like crimping part, 6a ... Center part, 7 ... Exterior body, 8 ... Perimeter tape, 9 Anti-vibration pad, 10 ... Finger ring, 11 ... Index finger, 12 ... Slit

Claims (5)

  The anti-vibration pad having a liquid-sealed container in which a film is stacked and a peripheral edge thereof is crimped to enclose a liquid, and the liquid-sealed container is partially penetrating inward from the peripheral edge to the inside or in an island shape An anti-vibration pad characterized by the inner surfaces being crimped together.   The anti-vibration pad according to claim 1, wherein the peninsula-like portion, the island-like portion, or the peripheral edge portion is pressure-bonded with a slit interval.   The vibration-proof pad according to claim 1 or 2, wherein water or an aqueous solution is used as the sealed liquid in the liquid sealed container.   The vibration-proof pad according to claim 1, 2, or 3, further comprising an exterior body having a portion integrated with a crimping portion of the liquid enclosure on the outside of the liquid enclosure.   5. The vibration-proof pad according to claim 1, wherein a finger ring into which a finger can be inserted is provided on the outer surface.

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