JPS6439182U

JPS6439182U -

Info

Publication number: JPS6439182U
Application number: JP13400087U
Authority: JP
Priority date: 1987-09-03
Filing date: 1987-09-03
Publication date: 1989-03-08
Anticipated expiration: 2002-09-03
Also published as: JPH0514952Y2

Description

[Brief explanation of the drawing]

第１図は、本考案における一実施例としての運
転台持ち上げ装置を自動車に装着させた場合の側
面図を示し、第２図は、第３図におけるイイ断面
図を示し、第３図は、第１図における運転台持ち
上げ装置Ａの側断面図を示し、第４図は、歯車３
が駆動軸５に対して矢印ａ方向に回転させられた
状態における第３図のロ，ロ断面図を示し、第５
図は、歯車３が駆動軸５に対して矢印ｃ方向に回
転させられた状態における第３図のロ，ロ断面図
を示し、第６図は、第４図に対応した第３図にお
けるハ，ハ断面図を示し、第７図は、第５図に対
応した第３図におけるハ，ハ断面図を示し、第８
図は、第３図におけるニ，ニ断面図を示している
。実施例に使用した主な符号は下記のとおりであ
る。Ａ：運転台持ち上げ装置、Ｂ：運転台、Ｃ：
シヤーシ、１：ケーシング、１ｃ：オイルシール
、２：マグネツトモータ、２ａおよび２ｂ：ピニ
オン、２ｂおよび３：歯車、３ａ：溝、３ｂ：カ
ム溝、４：円板、５：駆動軸、５ｂ：雄スクリユ
ーねじ、６：雌スクリユーねじ、６ａ：コラム、
８および９：ラチエツト、８ａおよび９ａ：ロー
ラ、８ｃおよび９ｃ：一端、１０ａ：ピストン、
１１：駆動軸。 FIG. 1 shows a side view when a driver's cab lifting device according to an embodiment of the present invention is attached to an automobile, FIG. 2 shows a cross-sectional view of FIG. 3, and FIG. A side sectional view of the cab lifting device A in FIG. 1 is shown, and FIG. 4 shows the gear 3.
3 shows a sectional view of FIG.
The figure shows a sectional view of FIG. , C shows a sectional view, FIG. 7 shows a sectional view of C, C in FIG. 3 corresponding to FIG. 5, and FIG.
The figure shows a sectional view of d and d in FIG. 3. The main symbols used in the examples are as follows. A: Cab lifting device, B: Cab, C:
Chassis, 1: Casing, 1c: Oil seal, 2: Magnetic motor, 2a and 2b: Pinion, 2b and 3: Gear, 3a: Groove, 3b: Cam groove, 4: Disc, 5: Drive shaft, 5b: Male screw screw, 6: Female screw screw, 6a: Column,
8 and 9: ratchet, 8a and 9a: roller, 8c and 9c: one end, 10a: piston,
11: Drive shaft.

Claims

[Claims for Utility Model Registration] 1. The drive mechanism converts the rotational motion of the rotating mechanism into vertical linear motion of the linear motion mechanism, and the vertical motion of the linear motion mechanism raises and lowers the driver's cab. The rotating mechanism is provided with a play part that allows relative rotation of a predetermined angle between its input side and its output side, and a play part is provided between the rotating mechanism and a casing that pivotally supports the rotating mechanism. , the first one-way clutch and the second
a one-way clutch is interposed, the first one-way clutch: a: in its on state, prevents rotation between the rotation mechanism and the casing to one side, and prevents rotation to the other side; b: in its off state, allows rotation to either side of the rotation mechanism; c: said relative rotation in the rotation mechanism is rotation to one side from its input side; When the relative rotation rotates from the input side to the other side, the second one-way clutch turns off due to the relative rotation, and when the relative rotation rotates from the input side to the other side, the second one-way clutch turns on due to the relative rotation. , a: In its on state, it prevents rotation between the rotation mechanism and the casing to the other side, and allows rotation to one side, and b: In its off state, the rotation allows rotation of the mechanism to either side; c: when said relative rotation in said rotating mechanism rotates from its input side to the other side, said relative rotation turns off; The rotating mechanism is configured as described above, and is turned on due to the relative rotation when the rotating mechanism rotates from 1 to 1 side to one side, and when the rotating mechanism is stopped, a braking force is applied to the input side. A driver's cab lifting device characterized by having a configuration in which: 2. In a rotating mechanism, a configuration in which a braking force is applied to the input side when the rotation is stopped is such that a magnetic motor is interlocked with the input side, and when the drive of the magnetic motor is stopped,
Utility model registration claim 1 which is configured to apply a brake on the input side by the magnetic action of the magnet motor.
Cab lifting device as described in Section 1. 3 In a rotating mechanism, when the rotation is stopped, a braking force is applied to the input side due to the frictional force of the oil seal interposed between the drive shaft and the casing, which are interposed on the input side. A driver's cab lifting device according to claim 1, which is configured so that a braking force is applied by a driver. 4. The play part in the rotating mechanism includes: a key and a groove that engages with the key are interposed between a disc-shaped gear provided in the rotating mechanism and a drive shaft pivotally supported by the gear; Utility model registration claim 1, which is constructed such that a play portion is provided in the direction of rotation of the groove so that the key can be rotated by a predetermined rotation angle.
The cab lifting device according to any one of paragraphs to paragraphs 3 to 3. 5. The first one-way clutch includes: a: A disk is fitted onto the drive shaft, and the disk is arranged to face the disk-shaped side surface of the gear in the axial direction of the drive shaft; b: One end of a ratchet is pivotally connected to the facing side of one of the gears or the disk, and a guide is fixed to the other end of the ratchet; c: The disk or A cam body for guiding the radial position of the guide body is provided on the facing side of the other gear, and d: the gear rotates relative to the disk to one side. When the cam body pushes the guide body radially outward, the pawl portion of the ratchet is pushed radially outward,
When rotated relative to the other side, the cam body pushes the guide body radially inward, thereby retracting the pawl portion radially inward; e: The casing has the rotating mechanism. A request for registration of a utility model, which is provided with a stop that locks the pawl when rotated to one side and releases the lock when the rotation mechanism rotates to the other side. The cab lifting device according to item 4.