JPH0314856Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rubber foot used in an acoustic coupler that is coupled to a telephone handset for data transmission.

(Summary of the invention) The invention consists of a rubber foot used in an acoustic coupler that acoustically couples with a telephone handset and transmits data, and a rubber body with air sealed inside, and a desk for this body. By using a rubber protrusion that protrudes from the bottom of the contact side, vibrations are absorbed by the elasticity of the rubber and the repulsive force of the sealed air, and the vibrations of the desk on which the acoustic coupler is placed adversely affect data transmission. This is a rubber foot for acoustic couplers that prevents damage from occurring.

(Prior Art) Acoustic couplers are used when connecting personal computers and terminal devices to other computer systems via telephone lines.

Figure 4 shows how the acoustic coupler is attached to the telephone hand set, where HS' is the hand set, 1' is the acoustic coupler body, 2' is the rubber cup, and 3' is the rubber foot. It is.

(Problem to be solved by the invention) By the way, the rubber feet 3' are designed to prevent the vibration of the desk on which the acoustic coupler body 1' is placed from being mixed into the signal of the internal microphone unit or speaker unit and adversely affecting data transmission. However, since they are generally made of solid rubber, their vibration absorption capacity is low, and in locations with high vibration levels, the vibrations may mix in as noise and cause errors in data transmission. There was a drawback that this occurred.

(Means for Solving the Problems) The present invention has been proposed in view of the above points, and its purpose is to provide a rubber foot for an acoustic coupler with high vibration absorption ability.

Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments.

FIG. 1 shows an embodiment of the rubber foot according to the present invention, in which A shows an external view and B shows the state before assembly.

In the figure, the rubber feet 3 are composed of an upper member 3a and a lower member 3b in the shape of a cylinder with a bottom, each made of an elastic rubber material, and both of which are joined together using an adhesive or the like. Also, below the rubber feet 3,
That is, a protrusion 3c is formed on the side that contacts the desk, and this protrusion 3c is formed integrally with the lower member.

FIG. 2 shows a cross section taken along the line A-A in FIG. 1A, and an air chamber 3e is formed by the upper member 3a and the lower member 3b. Further, a ring-shaped groove 3d is provided on the inner bottom surface of the lower member 3b.

FIG. 3 shows how it is attached to the acoustic coupler body, where 1 is the acoustic coupler body, 2 is a rubber cup, 3 is the rubber foot of the present invention, and D is a desk. Note that the rubber feet 3 are fixed to the acoustic coupler main body 1 by adhesion, screwing, or the like.

However, if we consider the case where vibrations are currently occurring on the desk D, the vibrations transmitted to the protrusion 3c are absorbed by the elasticity of the rubber material and the repulsive force of the air in the air chamber 3e, and are transmitted to the acoustic coupler body 1. is hardly transmitted. In addition, the material and thickness of the rubber material, the lower member 3b
The degree of elasticity can be arbitrarily set by changing the position, depth, shape, etc. of the groove 3d provided on the bottom surface, or the dimensions of the air chamber 3e.

(Effects of the invention) As described above, in the present invention, a rubber foot with air sealed inside is used in an acoustic coupler that acoustically couples with a telephone handset and transmits data. It has a main body and a rubber protrusion protruding from the bottom of the main body on the side that comes into contact with the desk,
Since vibrations are absorbed by the elasticity of the rubber and the repulsive force of the sealed air, it is possible to prevent surrounding vibrations from affecting data transmission, which has the effect of improving the quality of transmitted data.

In addition, a groove is formed on the inner bottom surface of the bottomed cylindrical lower member that constitutes the rubber main body, and by appropriately setting the position, depth, shape, etc. of this groove, it can be easily and arbitrarily set. has the effect of gaining elasticity.

[Brief explanation of drawings]

Fig. 1 is a structural diagram showing an embodiment of the rubber foot according to the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. FIG. 4 is a diagram showing the installation of a conventional acoustic coupler and hand set. 1...Acoustic coupler body, 2...Rubber cup,
3...Rubber feet, 3a...Upper member, 3b...Lower member, 3c...Protrusion, 3d...Groove, 3e...Air chamber, D...Desk.

Claims (1)

[Scope of utility model registration request] In the rubber feet used in acoustic couplers that acoustically couple with telephone handsets and transmit data,
It has a rubber body with air sealed inside, and a rubber projection protruding from the bottom of the body on the side that contacts the desk, and the rubber body has a bottomed cylindrical upper part and a circular bottom surface. A rubber foot for an acoustic coupler, which is formed by joining a lower member with a groove formed therein, and absorbs vibrations using the elasticity of the rubber and the repulsive force of sealed air.