FR2618635A1 - PORTABLE PLANT SIZE APPARATUS - Google Patents

Abstract

The invention relates to a portable device for pruning plants. It relates to an apparatus in which a blade 4 is driven by a motor 2 provided with a starter. According to the invention, the accumulator battery 8 enabling the starter to be powered is mounted on a suspension strip 50 which is connected to the rest of the device by an upper member 6 and a lower connecting member 7 which ensure the connection. electrical and mechanical connection. Application to the pruning of plants.

Description

The present invention relates to a portable plant size apparatus

  driven by a motor having a starter. In general, a portable plant size apparatus includes a control assembly, including a motor with a starter and a blade attached to a work bar protruding from the engine, and a removable band of

  suspension. An accumulator battery intended for use

  starter motor is mounted near the motor. When the device is used, it is suspended by the tape at

the shoulder of a worker.

  However, in such a device, as the battery

  of accumulators is placed in a body close to the

  the body has a large dimension and is so heavy

  it causes an imbalance of the device. Thus, the

  this presents difficulties in handling the

  work bar. Consequently, the possibilities of using

  the apparatus are reduced and the worker gets tired.

  The object of the invention is to provide a portable device of

  the plant with good properties of implementation

and a simple structure.

  According to the invention, a portable plant size device comprises a cutting assembly having a motor provided with

  of a starter, an output shaft connected to a crankshaft

  motor shaft, a tubular shaft for supporting the output shaft so that it can rotate inside, and a circular blade supported at one end of the bar so that it can rotate and connected to the shaft of output so that it is driven by it, a suspension band, a storage battery attached to the band, a lower connection member fixed to the bar near the motor, an upper connection member fixed to the band, a connection device arranged in the lower and upper connecting members and for connecting the two members, a release device disposed in one or the other of the upper and lower members, a plug and a plug each disposed in the one of the connection members, and cabling arranged on the strip and on the bar and intended to electrically connect the battery to the

  starter via plug and socket.

  In a particular embodiment, the device

  The connecting wire includes a connection blade having a hole, located in the upper connection member, and a hook associated with the lower connecting member for penetrating the hole, and the releasing device is placed in the hole. lower connection body and is

  intended to remove the hook from the hole.

  Other features and advantages of the invention

  tion will become more apparent from the following description,

  with reference to the accompanying drawings, in which:

  Figure 1 is a perspective of a portable device

  plant size according to the invention; Figure 2 is a side elevation in partial section of a drive assembly of the apparatus;

  Figures 3a and 3b are illus-

  the execution of engine launch operations; Figure 4 is a front elevation showing the upper and lower connecting members of the apparatus; Figure 5 is a side elevational section of the connecting members of Figure 4;

  Figure 6 is a perspective of an inferior organ

  connection Figure 7 shows a circuit of a starter; Fig. 8 is a front elevation showing the upper and lower connection members in the connection state; and Fig. 9 is a sectional side elevation

  representing the connecting members of Figure 8.

  Referring to Figure 1; a portable plant size apparatus according to the invention comprises a set

  30 and a suspension stripe assembly 50.

  The assembly 30 comprises a body A having a motor 2 and a clutch housing 13, a tubular bar 3 of work protruding from the clutch housing 13, a gearbox 15 mounted to

  one end of the bar 3, and a circular blade

  4 supported by the housing of the gearbox 15 so that it

  can rotate and provided with a device 4a protection.

  A clamp 25 having a lower connecting member 7 is attached to the working bar 3 near the body A to ensure the connection of the assembly 50 and the band

suspension.

  The suspension strip assembly 50 comprises an annular suspension strip 5 intended to be suspended from the shoulder of a worker, an upper connecting member 6 being attached to the two ends of the strip 5. A housing 8a intended to house a storage battery 8

  is fixed in a suitable position on the strip 5 of

  if we. A wiring 12 leaves the casing 8a of the battery and

  joins the connection member 6 along the band.

  Referring to Figure 2 which shows the body A, and on which the crankshaft 16 of the engine 2 is attached to a cooling fan 19 carrying pads 18 of a centrifugal clutch. A clutch drum 20 is mounted on the clutch housing 13 to rotate and has an output shaft 14 disposed around the clutch housing 13.

  pads 18. A ring gear 17 is formed on the periphery

  The output shaft 14 is mounted in

  the work bar 3 so that it can rotate and

  put the energy of the engine 2 to gears of the box of

gearbox 15.

  A cylindrical support 21 placed on a lower part

  the housing 13 of the clutch and having a button 21a of operation is mounted so that it can rotate on a pivoting shaft 22 which is parallel to the axis of the crankshaft 16. The shaft 22 is fixed to the housing 13 by a thread 22a formed at one end. Thus, the support 21 can rotate in a plane perpendicular to the crankshaft 16, when a push is applied to the button 21a. A starter M is mounted in the support 21 and is fixed thereto by screws. A pinion 24 is fixed to the output shaft of the starter M and is intended to engage with the ring gear 17. When the button 21a of operation is pushed by the thumb of the worker, the support 21 rotates and The sprocket 24 of the starter M and the ring gear 17 are co-operable. A wiring 9 starting from the connecting member 7 is connected to the starter M. Referring now to FIGS. 3a and 3b; the support 21 has a projection 21b disposed in a frame 31 of pivoting limitation formed on the housing 13 so that the support 21 can rotate in a certain range between the stops 31a and 31b placed at both ends of the frame 31. A spring 23 The gap is placed between a spring lug 13a formed on the housing 13 and a hook 21c formed on the support 21. The support 21 is thus held in abutment against the abutment 31a or the abutment 31b. A fixed contact 33a comprising a conductive plate is fixed to

  the interior of the frame 31 near the stop 31b. Two con-

  33b tacts are fixed at the periphery of the projection 21b so that they can cooperate with the fixed contact 33a with formation of a switching mechanism 33. This switching mechanism 33 is closed when the pinion 24 is turned on.

contact of the ring gear 17.

  Reference is now made to Figures 4 to 6; the upper connection member 6 mounted on the suspension strip 5 comprises a plastic member 6b fixed to the strip, a connecting blade 6a having a hole 26 and a plug protruding from the bottom and electrically connected to the wiring

  12 joining the casing 8a of the storage battery.

  The lower connection member 7 mounted on the bar of

  3 comprises a housing 7b having a greater opening

  and a support plate 7e attached to the housing 7b and the clamp 25. A locking plate 7a having a hook 7c and a release plate 27 are disposed in the

  case 7b. The blocking plate 7a is supported by

  The hinge articulated by a shaft 7f and is biased by the spring 7d so that the hook 7c comes to cooperate with the hole 26 formed in the upper connecting member 6. The release plate 27 is slidably mounted in the housing 7b and has a tab 27a. The lower end of the plate 27 abuts against one end of the blocking plate 7a. A socket 11 corresponding to the plug 10 is placed in the housing 7b and the wiring 9 is connected to it. The upper connecting member 6 can be arranged on the clip 25 and the member

  lower 7 connection can be arranged on the strip 5.

  Reference is now made to Figures 8 and 9; when

  the assembly 50 with a suspension band must be attached to the

  As shown in FIG. 6, the connection plate 6a of the member 6 is introduced into the space between the blocking plate 7a and the release plate 27, in the case 7b, from an upper opening. The hook 7c is placed in the hole 26, so that the connection member 6

  is hooked on the connecting member 7. Thus, the

  Size is in working condition.

  Simultaneously, the plug of the connecting member 6 enters the socket 11 formed in the member 7. Thus, the accumulator battery 8 placed in the casing 8a is electrically connected to the starter M via the wiring 12, of the plug 10, the socket 11 and the wiring 9, forming the circuit shown in FIG.

  starter M is also in the operating state.

  The operation of the size apparatus is now described. When the engine 2 is stopped, the support 21

  is in the rest position shown in Figure 3a.

  The projection 21b of the support 21 is placed against the stop 31a

  under the action of spring force 23.

  When the engine 2 is to be launched, the button 21a

  of operation is pushed by the thumb of the

  to have the support 21 turn around the shaft 22.

  When the support 21 exceeds the neutral axis of the spring 23, it is driven in rotation by the force of the spring 23. The projection 21b therefore comes against the stop 31b. In this

  position, the pinion 24 is in contact with the annular crown

  17 and the movable contacts 33b are placed against the fixed contact 33a. Thus, the starter circuit is closed and allows the drive of the starter M, so that the ring gear 17 rotates through the pinion 24

  and drives the engine 2. The energy of the engine 2 is transferred

  to the output shaft 14 and to the circular blade 4 so

  that a size can be realized.

  When the engine 2 has been started, the reaction of the ring gear 17 causes the rotation of the support 11 in the direction of clockwise around the shaft 22, and

  the projection 21b comes against the stop 31a.

  When the cutting assembly is to be separated from the suspension web assembly 50, the tab 27a of the release plate 27 is pushed down. The

  locking plate 7a then pivots in the direction of the

  9c so that the hook 7c separates from the hole 26. The upper connection member 6

  can then be separated from the lower member 7.

  According to the invention, since the accumulator battery is mounted on the suspension band, the apparatus is small in size and lightweight, so that its handling possibilities are increased. In addition, where the

  connection are connected to each other, the battery of

  accumulators is automatically connected to the starter.

Claims (3)

  1. Portable plant cutting machine, characterized   characterized in that it comprises: a cutting assembly having a motor (2) provided with a starter (M), an output shaft connected to the crankshaft of the engine, a tubular shaft for supporting the output shaft so that it can turn inside, and a circular blade (4) supported at one end of the bar   and connected to the output shaft so that it is   rotated by this shaft, a strip (5) of suspension, a storage battery (8) attached to the strip, a lower member (7) connection fixed to the bar near the engine, an upper member (6) connection device connected to the strip, a connection device (6a, 7a) disposed in the lower and upper connecting members and intended to connect the two members, a release device (27) placed in one or other of the upper and lower connection members, a plug and socket (10,11) each disposed in one of the connecting members, and wiring (12,9) formed in the strip and on the   bar and intended to electrically connect the battery of ac-   accumulators to the starter via the plug and of the catch.   2. Apparatus according to claim 1, characterized in that the connecting device comprises a connecting blade (6a) having a hole, placed in the upper or lower connecting member (6), and a hook (7a) placed in   the lower or upper connecting member respectively-   so that it cooperates with the hole.   3. Apparatus according to claim 2, characterized in that the release device (27) is arranged in the lower or upper connection member so that the hook is separated from the hole.