JPH10169712A - Vibration control member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control member which extends its pressure receiving area, conform to the surface configuration of an object, and increase fixing force when it holds a cable or when it is in close contact with a mounting base and the like. SOLUTION: The projected end face 12a of each projected streak 12 is formed into a shape of recessed face having long side edges 12a', 12a' as the tops. Both the tops receive pressure to be spread outward tosimultaneously generate a pressure receiving area extending action which extends the pressure receiving area to hold an object extensively by reactive force, a shape-responding action by which both the tops conform to the surface configuration of the object to be held, and an adhesive bonding action which remove the air in the recessed part to adhere to the object. Even when undulation occurs at the vibration, noise generating part (for example, a cable) 100 or dimensional distortions of the diameter of the outer peripheral surface are partially generated, the projected streaks conform to (imitate) the surface configuration of the object to firmly fix the object to be held, extensively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable connecting an antenna installed outdoors such as a broadcasting station, a radio station, a telephone station and other communication facilities to a broadcasting facility and a transmitting / receiving facility in a station building. The present invention relates to an anti-vibration member (spacer) having an excellent anti-vibration / sound-proof effect used in supporting cable supporting equipment, mechanical equipment for generating vibration and noise, and the like.

[0002]

2. Description of the Related Art Conventionally, a vibration isolating member used in a machine or the like that generates vibration or noise has a structure shown in FIG. That is, it has a cross-sectional structure in which rectangular ridges 42 are integrally formed over the entire front and back surfaces of the substrate 1 made of natural rubber, chloroprene, or the like so as to be parallel to the direction orthogonal to the back-to-back shape. This vibration isolating member is interposed between the mechanical equipment B and the mounting base C in the mechanical equipment as shown in FIG. Although not shown, one or more appropriate number of equal-diameter or different-diameter semi-conductors are used to support a cable (feeding line or the like) for connecting an antenna of a broadcasting station to a broadcasting facility or a transmitting / receiving facility in the station building. A plurality of divided bodies having circular concave portions on one of the front and rear surfaces or both front and rear surfaces are configured to be connected to each other by stud bolts with the semicircular concave portions facing each other. A molded neoprene vibration isolator is previously attached to the inner surface of the semicircular recess of each of the divided bodies in advance,
The cable is gripped by the elastic repulsion function of the vibration isolating member by stud bolting.

[0003]

However, the ridges 42 satisfy satisfactory undulations such as the surface shape of the mounting base C and the back surface shape of the mechanical equipment B, and the close contact and gripping according to the outer peripheral surface shape of the cable. It was not something. That is, since the protruding ridge 42 has a flat end surface, when an elastic crushing force is applied at the time of close contact with a mounting base or the like and a cable is gripped, the intermediate height portion swells and deforms to generate a repulsive force. The surface simply deforms along the undulation or the outer peripheral surface of the cable, and the pressure receiving area hardly changes between no load and when loaded, and the undulation and the outer surface of the cable follow the outer surface of the cable Is scarce. In this case, when undulation occurs, when the outer peripheral surface of the cable is not a perfect circle, or when the cable has a spiral shape, it is not advantageous in receiving pressure over a wide range or holding the same evenly.

SUMMARY OF THE INVENTION The present invention has been made in view of the conventional circumstances, and its purpose is to expand the pressure receiving area when gripping a cable, close contact with an attachment base, or the like, and to adapt to the surface shape. Another object of the present invention is to provide a vibration damping member that increases the fixing force.

[0005]

The technical measures taken to achieve the above object are all ridges or a single row integrally formed in a parallel relationship over the entire length of the front and back surfaces of the substrate or one of the surfaces. Vibration by making the protruding end face of every other ridge or the ridge at the desired position a concave shape with the long edges on both sides as the tops,
The gist of the present invention is that the elastic deformation portion is constituted by a noise generation portion or a vibration and noise transmission portion.

According to the above technical means, the following effects are obtained. In the mechanical equipment, for example, the protruding end surface of the ridge is interposed between the mechanical equipment and the mounting base, and in this state, the mechanical equipment and the mounting base are connected by mounting hardware (for example, bolting). Further, in the cable support device, for example, as described above, each of the divided bodies is attached to the inner surface of the semicircular concave portion, and the divided bodies are stud-bolted with the cable positioned between the divided bodies. Then, since the protruding end surface of the ridge has a concave shape with the long edges on both sides as tops, each long edge on both sides expands outward under pressure and expands the pressure receiving area, and close contact with a wide range of repulsive force Alternatively, the gripping pressure receiving area expanding action and the long edges on both sides simultaneously generate a shape adapting action along the surface shape of the target portion and a close contact action by eliminating air in the recess. Due to this, even if undulation occurs in the vibration or noise generating part or the part to which the vibration or noise is transmitted, or even if the diameter of the outer peripheral surface partially changes, it conforms to the surface shape and closely follows Closely contact the wide area of the target area, and firmly fix the wide area of the grip target area.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show mechanical equipment (vibration,
FIG. 3 to FIG. 6 show an embodiment relating to a vibration isolating member used in a support device of a cable (a portion to which vibration and noise are transmitted). Is shown. First, a description will be given of an embodiment relating to a vibration isolating member of mechanical equipment. Reference numeral A indicates a vibration isolating member.

As shown in FIG. 1, this vibration isolating member A is formed by integrally projecting ridges 2 of a predetermined height at equal intervals over the entire surface of a substrate 1 made of natural rubber or chloroprene having a desired area. Molding. It can be cut to an appropriate size with a cutting tool such as a knife. It is also optional to use a plurality of sheets in a stacked manner, and in this case, the ridges 2 are stacked so as to intersect in a plan view in a vertical relationship.

In this embodiment, the protruding ridges 2 are formed by connecting the protruding end faces 12a of the ridges 12 in every other row to the long edges 12a ', 12a' on both sides.
Are formed as concave portions, and the remaining protruding ridges 22 have a slightly lower protruding height, and their protruding end surfaces are formed as curved protruding surfaces as shown in the figure. The elastically deformed portions 3 are formed by these ridges 12 ..., 22 ...
Is composed.

[0010] The vibration isolating member A is interposed between the mechanical equipment B such that the protrusion 2 corresponds to the surface of the mounting base C. Reference numeral 4 denotes a flange b protruding from the lower end of the mechanical equipment B.
Are anchor bolts for fixing the mounting bolts to the mounting base C.

The crushing force acts not only on the substrate 1 but also on the ridges 2... Of the vibration isolating member A used in this manner. At this time, the protruding end faces of the ridges 12a are long edges 12a ', 12 on both sides.
Since it has a concave shape with a 'as the top, the expandability expands the pressure receiving area by applying pressure to both the tops and expands the pressure receiving area. Along with the adaptability, it is possible to simultaneously generate the adhesion by excluding the air in the recess. Therefore, even if undulations occur on the surface of the mounting base C, it becomes possible to receive the pressure evenly over the entire ridges 12 in the correlation of the expandability, responsiveness, and adhesion. No, groove 32 ...
Exhibits soundproofing function in the air layer. The ridges 22 have an auxiliary function of being crushed to the extent that they are slightly line-contacted during use, and a function of maintaining the entire strength of the vibration isolating member A at a predetermined level.

Next, an embodiment relating to a vibration isolating member of a cable supporting device will be described. Reference numeral D denotes a supporting device, and A denotes a vibration isolating member.

The cable support device D has a plurality of divided bodies 5 having one or more semi-circular concave parts 15 of equal or different diameters on one or both front and rear surfaces. And a plurality of stud bolts 6 connecting the semicircular concave portions 15 to each other.

The divided bodies 5 are made of light-shielding synthetic resin (for example, made of AES resin). The first is a semicircular recess 15 on the front surface, and the other is a semicircular recess 15 on both front and rear surfaces. 15
, And thirdly, the semicircular concave portions 15 are respectively provided on the rear surface.

The first divided body 5 (to which reference numeral 5a is given in the following) is mounted on a ladder member (not shown) by attaching a rear mounting plate 25 to a ladder member (not shown). .

The second divided body 5 (denoted by reference numeral 5b in the following) holds the cable 100 by the semicircular recesses 15 of the first divided body 5a and the semicircular recesses 15 on the rear surface. The stud bolts 6 are fixed in a state where they are aligned.

The third divided body 5 (denoted by the reference numeral 5c in the following) is aligned with the semicircular recess 15 on the rear surface of the divided body 5b and the semicircular recess 15 on the front surface so as to grip the cable 100. The stud bolt 6 is similarly fixed in the state of being stuck.

A nut (not shown) corresponding to the stud bolt 6, a receiving portion (not shown) for the bolt head 16, and an insertion hole 26 for a screw portion are appropriately provided in each of the divided bodies 5a, 5b and 5c. is there.

The vibration isolating member A is made of neoprene having excellent oil resistance and aging resistance, and has a substrate 1 formed in a cross-sectional shape similar to the semicircular recesses 15 and ridges integrally formed on the surface thereof. 2 ...

As in the above-described embodiment, the vibration isolating member A is formed in a concave shape with the protruding end surfaces of every other row of ridges 12... The protruding end surface is curved to have a curved protruding surface shape, and the ridges 12 ... and the ridges 22 ... constitute the elastically deformable portion 3 and integrally have a bridge portion 11 at an appropriate position on the back surface of the substrate 1. , Stud bolt 6
Are set in each of the divided bodies 5a, 5b, 5c before they are connected to each other.

The set of the vibration isolating member A is divided into
b, 5c semi-circular recesses 15... are fitted in set grooves 35 having the same width as the vibration isolating member A continuously recessed along the inner surface, and from the set grooves 35. When the bridge portion 11 is fitted into the recessed horizontal positioning groove 45, it cannot be dropped off.

The vibration isolating member A used in this manner has an expandability in which the long edges 12a ', 12a' on both sides are expanded outward by receiving pressure to expand the pressure receiving area, as in the above embodiment. The responsiveness along the surface shape of the portion to be pinched by the deformation function of the both tops, and the adhesion by eliminating the air in the recess are simultaneously generated, even if the cable 100 has a partially different diameter, for example. Even if the outer peripheral surface has a spiral shape due to coating, it follows the shape and expands the pressure receiving area to stably grip a wide range of the gripping target area, and exhibits soundproofing in the air layer of the groove 32 ... I do. Therefore, it is possible to avoid the concentration of stress on a certain ridge and to hold the ridge substantially evenly, thereby improving the durability.

The protruding ridges 12 having the protruding end surfaces having a concave shape are provided.
It is optional to form the ridges on the front surface, the back surface, and the entire front and back surfaces, and it is also possible to form only the ridge portions in a desired position and in a certain range into the ridges 12 having a concave end surface. Desired position,
When only the protruding portion of the range is formed into a protruding shape having the protruding end surface as a concave shape, the other protruding portions 22 are set to the same height as the protruding portion (a protruding portion having the protruding end surface having a concave shape). This is effective when the position of the undulation or the different diameter portion is known.

[0024]

As described above, according to the present invention, the projecting end surface of the ridge is formed into a concave shape having the long edges on both sides as tops. The pressure receiving area expands and expands and closes or grips with repulsive force over a wide range, and both tops closely conform to the surface shape of the target part and grip target part, and the close contact function by eliminating air in the recess Is generated at the same time, if there is undulation in the part where vibration and noise are generated and the part to which vibration and noise are transmitted, or the diameter of the outer peripheral surface of the cable is deviated, and furthermore, the outer peripheral surface of the cable becomes Even if it is coated in a spiral shape, it conforms (follows) to the corresponding surface shape portion of the close target portion and the grip target portion, and then firmly contacts the surface shape corresponding portion of the close target portion. Securely fix the part corresponding to the surface shape. Therefore, by the function of the ridge having the concave end surface, a certain ridge can be uniformly pressure-received or gripped by the entire ridge without locally receiving concentrated stress. It is possible to provide an anti-vibration member that exhibits an effect of excellent durability for supporting in a stable state.

[Brief description of the drawings]

FIG. 1 is a perspective view of an anti-vibration member used in mechanical equipment.

FIG. 2 is a partially enlarged cross-sectional view showing a state interposed between mechanical equipment and a mounting base.

FIG. 3 is a partial exploded view of the cable support device, showing a relationship between the divided body and the vibration isolating member.

FIG. 4 is an overall perspective view showing a state in which the last divided body (third divided body) is connected to the cable support device.

FIG. 5 is an enlarged sectional view taken along line (5)-(5) of FIG. 3;

FIG. 6 is an enlarged sectional view taken along the line (5)-(5) of FIG. 3, showing a state where the cable is fitted to the outer peripheral surface of the cable.

FIG. 7 is a perspective view of an anti-vibration member used in conventional mechanical equipment.

FIG. 8 is a partially enlarged sectional view showing a state interposed between the mechanical equipment and the mounting base.

[Explanation of symbols]

A: Anti-vibration member 1: Substrate 2: Ridge 12: Ridge (Ridge with a concave end surface) 22: Ridge (Ridge with rectangular cross section) 12a ': Long side edge B: Machine equipment (Vibration and noise generation part) D: Cable support device (vibration and noise transmission part) 3: Elastic deformation part 12a: Tip end 100: Cable 5, 5a, 5b, 5c: Split body

Claims (1)

[Claims] 1. A protruding end face of all or one row of protruding ridges or a protruding ridge at a desired position, which are integrally formed in a parallel relationship over the entire length of the front and back surfaces or one of the surfaces of the substrate. An anti-vibration member characterized in that it has a concave shape serving as an apex and forms an elastic deformation portion by a vibration or noise generating portion or a transmitted portion of vibration and noise.