JPH0739782U - Sewing machine bed height adjustment device - Google Patents

Abstract

(57) [Summary] [Objective] To provide an inexpensive and easy sewing machine bed height adjusting device. [Structure] A plurality of steps are provided at four corners of the oil pan step supporting surface on the sewing machine bed side, and head supporting rubber fitting holes are provided on each step surface. In this device, the height of the upper surface of the sewing machine bed is adjusted by changing the head supporting rubber supporting surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for adjusting a sewing machine table upper surface and a sewing machine bed upper surface in a sewing machine.

[0002]

[Prior art]

 Conventionally, since the material of the sewing machine is wood, the processing dimension in the height direction at the corner step of the sewing machine hole varies from product to product for the specified size. On the other hand, the fact that the upper surface of the sewing machine bed is lower than the upper surface of the sewing machine table has seriously hindered the sewing work. For this reason, the machined dimensions of the corners of the corners of the sewing machine were set so that the upper surface of the sewing machine bed was not lower than the upper surface of the sewing machine table and the processing tolerance was taken into consideration.

As a result, after the assembling of the sewing machine, there are many products in which the upper surface of the sewing machine bed is higher than the upper surface of the sewing machine table than necessary. This product with a large step interferes with the sewing work, and it has been desired to eliminate this problem. 2. Description of the Related Art Conventionally, there has been proposed a vibration isolator for a sewing machine, such as Japanese Utility Model Laid-Open No. 52-137958, which is characterized in that a vibration isolating member is provided at the corner of a sewing machine hole. However, this proposal does not describe or suggest an adjusting device in which the upper surface of the sewing machine bed approaches the upper surface of the sewing machine table.

On the other hand, there is proposed a work table in which the work table of the sewing machine can be moved up and down by a motor as in Japanese Patent Laid-Open No. 57-72698. However, no inexpensive and easy adjusting device has been proposed in which the upper surface of the sewing machine bed approaches the upper surface of the sewing machine table to try to eliminate the step.

[0005]

[Problems to be solved by the device]

 SUMMARY OF THE INVENTION The present invention is intended to provide an adjusting device for bringing the upper surface of the sewing machine bed closer to the upper surface of the sewing machine inexpensively and easily, which is a problem of the conventional products.

[0006]

[Means for Solving the Problems]

 Steps are provided at the four corners of the oil pan step support surface on the sewing machine bed side, and head support rubber support holes are provided on each step surface. At this time, the height of the upper surface of the sewing machine bed is adjusted by changing the hole for supporting the head supporting rubber.

[0007]

[Action]

 According to the present invention, steps are provided at four corners of the oil pan step supporting surface on the sewing machine bed side, and head supporting rubber supporting holes are provided on each step surface. At this time, for products whose upper surface of the sewing machine bed is higher than the upper surface of the sewing machine table, the head supporting rubber supporting hole is changed to a lower supporting hole. As a result, the upper surface of the sewing machine bed approaches the upper surface of the sewing machine table, and the level difference is reduced or the height is the same.

[0008]

【Example】

 The present invention will be described below based on the illustrated embodiment. A sewing machine table 1 has a hole 2 formed in a central portion thereof that can be fitted into an oil pan described later, and a step portion 3 is formed below an inner end edge portion thereof. Then, the oil pan 4 is placed on the sewing machine table, and the head supporting rubber 5 is attached to the oil pan to support the sewing machine bed 6.

Reference numeral 4 denotes an oil pan, the upper end portion of which is bent outward, and the bent portion 4 a is supported by the step portion 3 of the table 1 to collect the machine mechanical oil. Further, planes 4b and 4d having steps for adjusting the height of the sewing machine bed are provided at four corners of the upper surface of the folding section 4a on the side where the sewing machine bed is fitted. At this time, the one higher plane 4b has a predetermined height so that the sewing machine bed does not become lower than the sewing machine table from the lower limit of the tolerance when the parts are machined.

On the other hand, the flat surface 4d lower than 4b is a product of which the upper surface of the sewing machine bed after assembly of the sewing machine is higher than the upper surface of the sewing machine table more than necessary in the step between the sewing machine table and the sewing machine bed formed by 4b. The bed has a predetermined height that reduces the step between the sewing machine bed and the sewing machine table while keeping the condition that the bed is not lower than the sewing machine table.

Holes 4e and 4f corresponding to the respective planes are provided on the planes 4b and 4d having the steps, and a head support rubber 5 is attached to the holes to support the sewing machine table 6. Reference numeral 5 is a head supporting rubber having a spherical front portion 5a, a cylindrical central portion, a step portion 5b at the rear portion, and a hole 5c at the center of the step portion 5b. At this time, the dimension in the diameter direction of the oil pan step portion 5b is larger than the oil pan holes 4e and 4f. However, as described above, the head supporting rubber has the hole 5c in the center of the rear part and is easily fitted into the oil pan holes 4e and 4f by applying a load to the center from the outer peripheral direction of 5b due to its rubber elasticity. It is possible.

The present invention is configured as described above, and the head support rubber supporting fitting hole is changed from 4e to 4f for a product in which the upper surface of the sewing machine bed is higher than the upper surface of the sewing machine table after the sewing machine is assembled. As a result, the plane of the oil pan that supports the sewing machine bed changes from the high plane 4b to the low plane 4d, and the step difference between the sewing machine table and the sewing machine bed becomes small.

Although the present embodiment has described that the oil pan is provided with two steps for supporting the sewing machine bed, the oil pan may be provided with three or more steps. Further, instead of the oil pan, it is easily conceivable to provide a step on the sewing machine bed surface contacting the oil pan.

[0014]

[Effect of device]

 By reducing the step between the upper surface of the sewing machine bed and the upper surface of the sewing machine table, the cloth is smoothly fed during sewing, and it is possible to prevent cloth misalignment and seam wrinkles.

[Brief description of drawings]

1] Oil pan perspective view

FIG. 2 is a sectional view taken along line YY.

FIG. 3 is a sectional view taken along line YY after product assembly.

FIG. 4 Enlarged view of cross section of head support rubber

[Explanation of symbols]

 1 Sewing table 2 Sewing table rectangular hole 3 Sewing table edge side step 4 Oil pan 4a Oil pan bent part 4b Oil pan step plane (low) 4d Oil pan step plane (high) 4e Oil pan step hole 4f Oil pan Step hole 5 Head support rubber 5a Head support rubber Front 5b Head support rubber step 5c Head support rubber hole 6 Sewing machine bed 6a Sewing machine bed upper surface 6b Sewing machine bed lower surface

Claims (1)

[Scope of utility model registration request] 1. A sewing machine table having a rectangular hole penetrating through a central portion of a work table and step portions formed on inner edges of four corners of the hole, and a sewing machine bed placed on the step portions of the four corners of the sewing table and above. In a sewing machine having an oil pan for supporting, a sewing machine bed height adjusting device characterized in that a plurality of planes with steps having head supporting rubber supporting holes are provided at four corners of the oil pan facing the sewing machine bed. .