JPH0169476U

JPH0169476U -

Info

Publication number: JPH0169476U
Application number: JP1988125063U
Authority: JP
Priority date: 1988-09-24
Filing date: 1988-09-24
Publication date: 1989-05-09
Also published as: JPH026919Y2

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図Ａ，１Ｂ図は従来の例の概略図、第２図
は送り装置の斜視図、第３，４図は側面図で送り
量を小さくしたときと大きくしたときをそれぞれ
示す図、第５図は線図、第６図は一部を拡大した
説明図である。１１……主送り歯、１２……主送り台、１３…
…差動送り歯、１４……差動送り台、２２……主
軸、２８……送り前後軸、２９……送りクランク
、３３……差動送りクランク、３４……ロツド、
３５……スライダー、３７……案内溝、３８……
案内体、４０……摺動子、４２……調節レバー、
４４……操作レバー。 Figures 1A and 1B are schematic diagrams of conventional examples, Figure 2 is a perspective view of the feed device, Figures 3 and 4 are side views showing when the feed amount is decreased and increased, respectively; FIG. 5 is a line diagram, and FIG. 6 is a partially enlarged explanatory diagram. 11...Main feed dog, 12...Main feed stand, 13...
... Differential feed dog, 14 ... Differential feed base, 22 ... Main shaft, 28 ... Front and rear feed shaft, 29 ... Feed crank, 33 ... Differential feed crank, 34 ... Rod,
35...Slider, 37...Guide groove, 38...
Guide body, 40...Slider, 42...Adjustment lever,
44...Operation lever.

Claims

【実用新案登録請求の範囲】 (1) 主送り歯を備えた主送り台と、該送り台に
並設され、作動送り歯を備えた差動送り台と、主
軸に連動して上記両送り台を上下動させる上下動
機構と、主軸に連動して主送り台を前後動させる
第一の前後動機構と、送り前後軸に上向きに取付
けられて該軸を中心として主軸に連動して前後方
向に揺動する差動送りクランクと該クランクにス
ライド可能に取着されるスライダーとを含み、上
記差動送り台に連結されて該台を前後動させる第
二の前後動機構と、上記スライダーを差動送りク
ランクに沿つて移動させる操作機構とを有するミ
シンの送り装置において、上記操作機構が、上記
スライダー３５を支持し、該スライダー３５が上
記送り前後軸２８の軸心を通る径方向の線上の一
点を中心として揺動できるように案内する支持部
材３７，３９，４０を備え、送り前後軸２８にそ
の径方向に摺動可能に設けた案内体３８と、上記
差動送りクランク３３の側方及び送り前後軸２８
上方に設けられ、差動送りクランク３３がその揺
動範囲の一位置にあるとき、該差動送りクランク
に沿つて案内体３８を上下に移動させるようにし
た操作手段４１，４２とからなることを特徴とす
るミシンの送り装置。 (2) 案内体３８の支持部材は、上記スライダー
３５に軸着され、円弧状の平行面を有する摺動子
４０と、該摺動子４０の平行面と摺動可能に嵌合
する円弧状案内溝３７とからなる登録請求の範囲
第１項記載のミシンの送り装置。 (3) 操作手段は、上記差動送りクランク３３の
側方及び送り前後軸２８の上方に設けたレバー軸
４１と、該レバー軸４１に一端が固定され、他端
が案内体３８に軸着された調節レバー４２とから
なる登録請求の範囲第１項記載のミシンの送り装
置。[Scope of Claim for Utility Model Registration] (1) A main feed base equipped with a main feed dog, a differential feed base installed in parallel with the feed base and equipped with an operating feed dog; A vertical movement mechanism that moves the table up and down; a first back-and-forth movement mechanism that moves the main feed table back and forth in conjunction with the main shaft; a second back-and-forth motion mechanism that includes a differential feed crank that swings in a direction and a slider that is slidably attached to the crank, and that is connected to the differential feed base and moves the base back and forth; and the slider. In the sewing machine feeding device, the operating mechanism supports the slider 35, and the slider 35 moves in the radial direction passing through the axis of the forward and backward feed shaft 28. A guide body 38 is provided with support members 37, 39, and 40 that guide the guide so as to be able to swing around a point on the line, and is provided on the feed back and forth shaft 28 so as to be slidable in its radial direction, and Lateral and forward/backward feed axis 28
Operating means 41 and 42 are provided above and are adapted to move the guide body 38 up and down along the differential feed crank 33 when the differential feed crank 33 is in one position of its swing range. A sewing machine feed device featuring: (2) The support member of the guide body 38 is pivoted to the slider 35 and includes a slider 40 having parallel arc-shaped surfaces, and an arc-shaped slider 40 that slidably fits into the parallel surface of the slider 40. A feeding device for a sewing machine according to claim 1, comprising a guide groove 37. (3) The operating means includes a lever shaft 41 provided on the side of the differential feed crank 33 and above the forward and backward feed shaft 28, one end of which is fixed to the lever shaft 41, and the other end of which is pivoted to the guide body 38. A feeding device for a sewing machine as set forth in claim 1, comprising an adjusting lever 42 having a vertical axis.