JPH0281955U

JPH0281955U -

Info

Publication number: JPH0281955U
Application number: JP16293788U
Authority: JP
Priority date: 1988-12-13
Filing date: 1988-12-13
Publication date: 1990-06-25
Anticipated expiration: 2003-12-13
Also published as: JPH077647Y2

Description

[Brief explanation of drawings]

第１〜４図は本考案を適用した螺旋杭打込み作
業機械の全体外観正面図、平面図、左側面図並び
に右側面図、第５図はその据付架台に対するクラ
ツチケースとトランスミツシヨンケースの設置状
態を示す部分拡大断面図、第６図は遠心クラツチ
機構の概観平面図、第７，８図は動力取出軸の正
転状態と逆転状態を各々示す断面図、第９図は第
７図の９−９線断面図、第１０図は第８図の１０
−１０線断面図、第１１〜１３図はカツプリング
を抽出して示す平面図、正面図並びに側面図、第
１４，１５図は第１１図の１４−１４線と１５−
１５線に沿う各断面図、第１６図は第１２図の１
６−１６線断面図、第１７図はカツプリングに対
する螺旋杭の受け入れ係合状態を示す正面断面図
、第１８図は第１７図の１８−１８線断面図、第
１９図は第１８図に対応する螺旋杭の振れ止め規
制状態を示す側断面図、第２０，２１図は螺旋杭
を抽出して示す側面図と拡大底面図、第２２図
〜は螺旋杭の打込み作業過程を示す説明図であ
る。１０……据付架台、１１……接地スタンド、１
４……ハンドルグリツプ、１５……スロツトルレ
バー、１９……トランスミツシヨンケース、２１
……クラツチケース、２６……動力取出軸、２７
……中間ギヤ軸、２８……入力ギヤ軸、２９……
迂回伝動ギヤ軸、３１，３３……第１，２ピニオ
ンギヤ、３２，３４……第１，２減速ギヤ、３５
……正転用第３ピニオンギヤ、３６……逆転用第
３ピニオンギヤ、４３……正転用第３減速ギヤ、
４４……逆転用第３減速ギヤ、４６……アイドル
ギヤ、４７……昇降スライダー、４８……シフト
ロツド、５１……切替え操作レバー、５４……切
替えピン、５７……カツプリング、Ｃ……遠心ク
ラツチ機構、Ｅ……エンジン、Ｆ……枠フレーム
、Ｇ……減速ギヤ機構、Ｍ……螺旋杭、Ｒ……回
転方向切替え機構、Ｔ……トランスミツシヨン機
構、Ｙ−Ｙ……重心線。 Figures 1 to 4 are an overall external front view, plan view, left side view, and right side view of a spiral pile driving machine to which the present invention is applied, and Figure 5 is the installation of the clutch case and transmission case on the installation frame. FIG. 6 is a schematic plan view of the centrifugal clutch mechanism, FIGS. 7 and 8 are cross-sectional views showing the power take-off shaft in normal rotation and reverse rotation, respectively. FIG. 9 is the same as in FIG. 7. 9-9 line sectional view, Figure 10 is 10 in Figure 8.
-10 line sectional view, Figures 11 to 13 are plan views, front views, and side views showing the coupling, and Figures 14 and 15 are the 14-14 line and 15- line in Figure 11.
Each cross-sectional view along line 15, Figure 16 is 1 of Figure 12.
6-16 line sectional view, Figure 17 is a front sectional view showing the state of reception and engagement of the spiral pile with the coupling, Figure 18 is a 18-18 line sectional view of Figure 17, and Figure 19 corresponds to Figure 18. Figures 20 and 21 are side views and enlarged bottom views showing extracted spiral piles, and Figures 22~ are explanatory diagrams showing the driving process of spiral piles. be. 10... Installation frame, 11... Grounding stand, 1
4...Handle grip, 15...Throttle lever, 19...Transmission case, 21
...Clutch case, 26...Power take-off shaft, 27
...Intermediate gear shaft, 28...Input gear shaft, 29...
Detour transmission gear shaft, 31, 33... 1st, 2nd pinion gear, 32, 34... 1st, 2nd reduction gear, 35
...Third pinion gear for forward rotation, 36...Third pinion gear for reverse rotation, 43...Third reduction gear for forward rotation,
44...Third reduction gear for reverse rotation, 46...Idle gear, 47...Elevating slider, 48...Shift rod, 51...Switching operation lever, 54...Switching pin, 57...Coupling, C...Centrifugal clutch Mechanism, E... Engine, F... Frame, G... Reduction gear mechanism, M... Spiral pile, R... Rotation direction switching mechanism, T... Transmission mechanism, Y-Y... Center of gravity line.

Claims

[Scope of Claim for Utility Model Registration] 1. A transmission case 19 is fixedly installed on a mounting frame 10 of a small engine E, and the transmission case 19 is suspended from the transmission case 19 substantially along the center of gravity line Y-Y of the working machine itself, and In a powered working machine in which a work power take-off shaft 26 rotationally driven by the engine E is derived, and a frame F extended from the installation stand 10 to surround the engine E is used hand-held, the power take-off shaft 26 The intermediate gear shaft 27 is supported on the same perpendicular line with respect to the power take-off shaft 26 in a stacked state and freely rotatable, and the input gear shaft 28 and the detour transmission gear shaft are attached to positions on both the left and right sides of the intermediate gear shaft 27. 29 are freely rotatable and vertically installed in parallel to each other, including the power take-off shaft 26, and their input gear shafts 28 are transmission-connected to the output shaft 22 of the engine E via a centrifugal clutch mechanism C. The first pinion gear 31 engraved on the input gear shaft 28 is connected to the large-diameter first reduction gear 32 correspondingly projecting from the intermediate gear shaft 27, and the second pinion gear 31 also engraved on the intermediate gear shaft 27 The pinion gear 33 is connected to a second large-diameter shaft correspondingly extending from the detour transmission gear shaft 29.
The third reduction gear 4 for forward rotation corresponds to the pair of upper and lower third pinion gears 35 for forward rotation and third pinion gear 36 for reverse rotation, which are always engaged with the reduction gear 34 and are carved on the detour transmission gear shaft 29.
3 and the third reduction gear 44 for reverse rotation, the power take-off shaft 2
6, so that the third pinion gear 35 for forward rotation and the third reduction gear 43 are always kept in mesh with each other, while the third pinion gear 36 and third reduction gear 44 for reverse rotation are fitted to each other so as to freely rotate.
are always meshed through the idle gear 46, and interposed between the upper and lower third reduction gears 43, 44 for normal rotation and the third reduction gear 44 for reverse rotation, respectively. A transformer for a hand-held powered working machine, characterized in that an elevating slider 47 for switching between forward and reverse rotational directions, which is selectively engaged, is spline-fitted to the power take-off shaft 26 so as to be able to rotate integrally with each other. Mission mechanism. 2 The third reduction gear 4 for normal rotation of the vertical slider 47
3 and the third reduction gear 44 for reverse rotation, a switching pin 54 for forward/reverse rotation direction is press-fitted and integrated into the body surface of the vertical slider 47 in a vertical penetrating state. 2. The transmission mechanism for a hand-held powered working machine according to claim 1, wherein the receiving holes 55, 56 for the switching pin 54 are formed in the body surfaces of the third reduction gears 43, 44, respectively. 3. A concave circumferential groove 50 is provided on the circumferential surface of the elevating slider 47, and the shift rod 48, from which the arm 49 that engages with the concave circumferential groove 50 is protruded, is inserted into the transmission case 19 so as to be freely ascendable and downward; The shift rod 48 is pivotally connected to a switching operation lever 51 for forward and reverse rotation, and the lever 51
2. The transmission mechanism for a hand-held powered working machine according to claim 1, wherein the shift rod is raised and lowered from outside the transmission case.