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Oil tank

A driving part, sewing machine technology, applied in the direction of engine lubrication, sewing machine components, sewing equipment, etc., to achieve the effect of simple structure, preventing falling, and preventing deformation

Inactive Publication Date: 2011-12-07
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if impurities attached to the filter accumulate and become heavy, the weight may cause the filter to fall

Method used

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  • Oil tank
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Examples

Experimental program
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Effect test

no. 1 example

[0032] Refer below Figure 1 to Figure 9 A first embodiment in which the present invention is applied to an industrial electronic sewing machine will be described. figure 1 It shows the state which looked at the electronic sewing machine 1 from the front direction. like figure 1 As shown, the electronic sewing machine 1 includes: a bottom plate part 2; a column part 3 erected on the right end of the bottom plate part 2; figure 1 The left side of the center) extends the arm part 4. The electronic sewing machine 1 is arranged on a work table 5 (refer to Figure 4 ) is used.

[0033] A needle bar vertical movement mechanism (not shown) for moving the needle bar 6 up and down by a main shaft driven by a sewing machine motor, a thread take-up lever drive mechanism (not shown) for driving the thread take-up lever, and the like are provided in the arm portion 4 . The bottom plate portion 2 is provided with a shuttle drive portion 9 (refer to figure 2 ) (corresponding to the...

no. 2 example

[0057] Refer below Figures 10 to 13 A second embodiment of the present invention will be described. The same reference numerals are assigned to the same parts as those of the first embodiment described above, and the description thereof is omitted, and the different parts will be described.

[0058] In the box body portion 31 of the box body 30 (refer to Figure 13 ), a frame-shaped stepped portion 61 is formed on the inner peripheral portion of the upper portion, and the stepped portion 61 is located at a height slightly below the oil return port 26 . A first filter support portion 62 , a second filter support portion 63 , and a third filter support portion 64 are integrally provided on the bottom portion 51 a in the box body portion 31 . The three filter support parts 62 to 64 of the first to third have a plate shape protruding upward, are located between the oil return port 26 and the output port 24 in plan view, and are arranged to extend in the front-rear direction. T...

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PUM

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Abstract

The invention relates to an oil tank (11). A return opening (26) for receiving oil from a driving part is mounted at the upper part of a tank body (30) for storing oil; an output opening (24) for outputting oil stored in the tank body (30) to the driving part is mounted at the lower part of the tank body (30); a filter (51) for filtering oil from the driving part is provided with a bottom (51a), a vertical wall (51b) and a vertical wall (51c) which are vertical from the end part of the bottom (51a); a filter supporting part (48) at the lower part of the tank body (30) support the bottom (51a) of the filter (51) from the lower part, so that the filter is located between the return opening (26) and the output opening (24) in height direction.

Description

technical field [0001] The present invention relates to an oil tank storing oil for supplying a driving part of a sewing machine. Background technique [0002] In an electric sewing machine used under high-speed rotation, it is essential to supply lubricating oil to rotating or sliding driving parts from the viewpoint of durability. In particular, oil supply to the hook drive unit that drives the rotary hook and the needle bar vertical movement mechanism is very important. For example, a sewing machine described in Japanese Laid-Open Patent Publication No. 2006-87810 includes a closed oil tank and an oil circulation system of a pump. The circulation system uses the pump to supply the necessary amount of oil stored in the oil tank to the shuttle drive unit, recovers the oil returned from the side of the shuttle drive unit to the oil tank for storage, and supplies the stored oil to the shuttle drive unit again, so that the oil cycle. A partition wall is provided inside the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B71/00F16N39/06
Inventor 和田哲也川岛义人桑原幸治大利人美
Owner BROTHER KOGYO KK