JPS62625Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a vibration isolation mechanism for a sewing machine provided between a sewing machine body and a table on which the sewing machine body is placed.

Conventionally, as shown in FIG. 1, this type of vibration isolation mechanism has been interposed between a sewing machine bed 1 as a sewing machine body and an oil pan 2 as a sewing machine body, and between these and a sewing machine table 3.
Also known is a vibration isolating rubber 5 in which a concave and convex portion 4 is integrally formed on the contact surface with the sewing machine bed 1 to improve the vibration damping effect.

However, the vibration-proofing rubber 5 has a drawback that when used for a long period of time, the uneven portions 4 rub against each other due to vibrations, and the uneven portions 4 become flat, making it impossible to obtain a vibration-proofing effect.

This invention was made with attention paid to these drawbacks, and the object is to provide a vibration-proofing mechanism for a sewing machine whose vibration-proofing effect does not decrease even after long-term use.

An embodiment of this invention will be described below with reference to FIGS. 2 to 5.

11 is a sewing machine bed that constitutes the sewing machine body; 1
2 is an oil pan with mounting parts 12A formed in the four corners;
Similarly, configure the sewing machine body. Reference numeral 13 denotes a sewing machine table having an opening 14 into which the oil pan 12 is inserted, and the four corners of the opening 14 are formed with receiving portions 13A on which the mounting portion 12A of the oil pan 12 is placed when the oil pan 12 is inserted. 15 is a vibration-proof rubber placed in the receiving part 13A, and the oil pan 12 is placed in the middle part.
A groove portion 16 is formed into which the attachment portion 12A of the sewing machine is loosely fitted, and a step portion 17 is formed on the upper surface to come into contact with the lower surface 11a of the four corners of the sewing machine bed 11.

In such a configuration, a plurality of concave and convex portions 18 are formed on the mounting portion 12A of the oil pan 12 as the sewing machine main body, which comes into contact with the vibration isolating rubber 15, as shown in FIG. 3 or 4. The anti-vibration effect of 15 has been improved.

Next, the operation will be described. The vibration isolating rubber 15 has a large deflection due to the concavo-convex portion 18 formed on the attachment portion 12A of the oil pan 12, so that it can absorb vibrations generated during operation of the sewing machine.

As described above, according to this invention, since an uneven portion is formed on at least one of the contact surfaces of the oil pan mounting portion that comes into contact with the vibration isolating rubber, the vibration isolating effect of the vibration isolating rubber can be improved. At the same time, the durability of the anti-vibration rubber can be improved.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view of a conventional mechanism, Fig. 2 is a perspective view of a sewing machine equipped with an embodiment of the mechanism of this invention, and Figs. 3 and 4 are partial sectional views of an embodiment of the mechanism of this invention. , FIG. 5 is a partially enlarged perspective view of the mounting portion in FIG. 2. 11... Sewing machine bed, 12... Oil pan,
13... Sewing machine table, 15... Anti-vibration rubber, 1
8...Uneven portion.

Claims (1)

[Scope of utility model registration request] In a vibration isolating mechanism in which an oil pan mounting portion is supported on a vibration isolating rubber provided between a sewing machine bed and a sewing machine table, an uneven portion is formed on at least one of the oil pan mounting portions that come into contact with the vibration isolating rubber. The vibration isolation mechanism of the sewing machine is a feature.