Abstract: A safety apparatus for a portable tool having an internal combustion engine has at least one accelerometer providing a measurement of an acceleration of the portable tool in at least one plane or axis. An electronic controller is connected to an output of the accelerometer so as to receive analog or digital information. A generator is driven by the internal combustion engine so as to supply power to the accelerometer. A management card processes the analog or digital information so as to activate the system acting on an ignition exciter box so as to nearly instantaneously stop the internal combustion engine when the acceleration of the portable tool exceeds a predetermined level.

Abstract: A rotary cutting head uses flexible strands of cutting wire that can be placed inside said cutting head. The clamping mechanism of the cutting head comprises pinching cams that are mounted in such a way as to be pivotable on planes that are parallel to one another and to the axis of rotation of the cutting head. The support for the clamping mechanism is mounted in such a way as to be axially movable in the outer housing of the cutting head. The outer housing and the support are complementary to each other such that simultaneously applying a relative axial movement to the outer housing and the support in opposite directions enables the pinching cams to be lifted, allowing the cutting strands to be placed, unwound, or retracted, or enables the cams to be lowered in order for the cutting strands to be blocked within the cutting head.

Abstract: A rotary cutting head is provided for portable cutting devices, such as lawn trimmers, edge trimmers, brush cutters, hedge trimmers, and the like which use cutting blades. The drive shaft, the blade supporting housing, and the blade of said cutting head have complementary means which, manually and without using tools, allow the blade to be placed, changed, centered, and axially positioned relative to the drive shaft and to be rotationally coupled to the blade supporting housing by performing an axial movement combined with an angular or linear movement of the blade relative to the drive shaft until the blade and the supporting housing start automatically interlocking.

Abstract: A scale for a traversable collecting table for machines for harvesting small fruits is disclosed. The scale has an upper face and a lower face arranged between a fixing end or proximal end and a free end or distal end provided with a stop rim rising above the plane containing the upper surface. The scale is characterised in that said stop rim consists of a flexible lip having an elastic deformation capacity.

Abstract: A hand-held electric blower includes an air-guiding pipe comprising a proximal portion or suction pipe provided with an air inlet, a distal air outlet portion or exhaust nozzle, and a fan. The blower is characterized in that the fan consists of an axial fan, and in that the suction pipe has, upstream from the axial fan, an elbow, the proximal end of which defines the air inlet and is directed downward in terms of a working position of the device, in which the operating handle of the blower is positioned above said elbow.

Abstract: Berry, such as grape, harvesting machine includes a plurality of superimposed shakers formed by flexible bars, and attached through their ends to two vertical shafts. At least one shaft is an oscillating actuation shaft controlled by a mechatronic shaking control permitting an oscillating movement. The mechatronic shaking control includes an eccentric system connected to the actuating shaft through a connecting rod, and the rotation axis of the eccentric system is mounted with an orientation adjustable in a plane parallel to the median plane of the machine so that any modification of this orientation permits to modify the amplitude of the oscillating movement of the actuating shaft, and, consequently the amplitude of the shaking movement of the shakers.

Abstract: A multifunctional rotary cutting head is provided for cutting devices as well as portable devices equipped with such a cutting head. The cutting head comprises a rotary housing that has at least a top part and a bottom part and accommodates a support for one or more cutting elements or tools. The support is penetrated by an axial drive shaft on which the support is mounted. The support for the cutting element(s)or tool(s) has two leads to selectively mounting the cutting element(s) or tool(s), i.e. a first level designed to mount strands of cutting wire and a second level designed to mount an interchangeable cutting blade.

Abstract: A harness is provided for carrying portable cutting devices including an operating handle. Said harness comprises a front part and a back part that are interconnected by straps. At least the back part is also connected to a belt, that wraps around a user's waist The disclosed harness is characterized in that the front part includes a Y-shaped pendular suspension element, the upper branches of which are or can each be connected to one of the straps via their upper ends, and the lower leg of which has a connecting means at the lower end to swingingly attach the handle of a cutting device.

Abstract: A chain saw apparatus has a body, a guide bar extending from the body, a drive sprocket rotatably mounted to the body, a chain affixed to the drive sprocket and to the guide bar, an engagement device positioned on the body and cooperative with the guide bar so as to allow the guide bar to move toward and away from the body, and pushing device for automatically moving the guide bar away from the drive sprocket. The pushing device has a slide and an elastic component. The slide bears against a rear end of the guide bar. The elastic component urges between the body and the slide.

Abstract: A hand-held powered ground and soil cultivation device includes a handle, a first end of which includes a holding zone and/or a holding member for the user, and the opposite end of which includes a head to which a working tool is rotationally or pivotally attached. During operation of the device, the working tool performs a reciprocating oscillating movement along a portion of a rotation and about a predetermined central angular position under the effect of the movement transmitted by a drive unit including at least an electric actuator or a heat engine. The hand-held powered device is characterized in that the working tool is releasably attached to the head, the working tool being mounted on a drive shaft that performs a reciprocating oscillating rotational movement and forms a vertical or horizontal axis of oscillation for the tool. The central angular position of the working tool can be adjusted.

Abstract: The invention relates to a hand tool or power tool device for cultivating the ground and soil, such as a hoe or hoeing tool, scraper, or the like, essentially comprising a working tool that is releasably or permanently mounted at the front end of a handle or the like which optionally has one or more specific holding zones or grips. The working tool is essentially composed of a bent integral or welded multipart metal strip to form a U-shaped lower section (6), at least part of which is used for cutting, and a shaped upper section to be mounted at the front end (3?) of the handle (3). The strip section extends between the legs of the U-shaped section (6), forms the core of the U, and has a serrated profile including teeth on the opposite longitudinal edges thereof, said teeth being preferably staggered. The device (1) is characterized in that said strip section is sharp at the two opposite longitudinal edges thereof.

Abstract: Tightening device of the screw-nut type includes a tightening member, which can be rotated, and a rotary wrench for this tightening member, equipped with a handling arm. The wrench and the tightening member are joined by a connecting device in such a way that the wrench can swivel in relation to the tightening member around a swivel axis substantially perpendicular to the screwing axis of the tightening member. Thus, it can be placed in a rest position substantially perpendicular to the screwing axis and can rotate the tightening member around the screwing axis or rotated freely in relation to the tightening member around the screwing axis, over a range of angular clearance (?) of at least 170°.

Abstract: The invention relates to a portable and self-contained optical spectrometer for analyzing a light spectrum backscattered by an illuminated sample, in order to deduce the content of at least one compound constituting the sample, said spectrometer being arranged about an optical axis and including: a target area centered on said optical axis; a plurality of optical sensors trained on the target area; an opaque measurement chamber including: an opening centered on said optical axis; at least one diffusing filter blocking said opening; and an inner bottom capable of housing the plurality of optical sensors and a main illumination device capable of illuminating the sample. The invention further relates to a method for using such a spectrometer.

Abstract: An apparatus for automatically bypassing tying posts in fruit-bearing hedges has a working head with a pair of vertical drive shafts, each having stacks of toothed cutting disks mounted thereon. Each of the vertical drive shafts having a an opening wheel thereof. The stacks are movable between a position in which the cutting disks mesh with each other and a position in which the stacks of the cutting disks are spaced away from each other. The opening wheels are connected by speed reducers to the shaft such that the open wheels rotate at a speed less than the cutting disks.

Abstract: A sorting table with grading rolls supported by end supports and positioned to form a sorting plane. The rolls are rotated in the same direction and configured to create at least one opening between adjacent rolls to permit the pass-through of only the products to be sorted or calibrated. Larger products remain at the surface and are evacuated downstream. The gap between rolls can be modified. Elastic elements are interposed between said end supports and means of actuation for are provided bringing said end supports and the rolls supported by the latter closer together or moving them farther apart, in opposition to the antagonistic action exerted by said elastic elements to decrease or increase the cross section of the openings, displacements in the opposite direction of said end supports and of the grading rolls being achieved by the action of extension or compression of said elastic elements.

Abstract: The invention relates to portable electric apparatuses of the kind including a tool driven by an electric motor, and a battery supplying the electric power necessary for the operation of said tool, characterised in that said portable electric apparatuses include a communication system enabling, on the one hand, the exchange of information relative to the type, the state and the operation of the tool and of the battery when connected together and, on the other hand, the adjusting if need be of the operation parameters of said tool based on the characteristics of said battery and/or the operation parameters of the battery based on the operation parameters of said tool.

Abstract: Harvesting head for picking fruit-bearing hedges, including a chassis in the form of a portal structure supporting, on the one hand, a shaking system including two fruit-detaching assemblies, mounted opposite each other and separated by a vertical space, and, on the other hand, two conveyor systems for receiving and transporting the harvested fruit to a receiving container, the lower horizontal portions of these two conveyor systems also providing tightness, below the shaking units. This harvesting head being supported by a mounting frame which is meant to be rigidly fastened, preferably in a removable manner, at the rear of a self-propelled straddling vehicle, including a height-adjustable chassis. The position of said harvesting head is height-adjustable in relation to said mounting frame, so that when said harvesting head is fastened to the chassis of the self-propelled straddling vehicle, it is mounted in a height-adjustable fashion in relation to said self-propelled straddling vehicle.

Abstract: Device for the automatic bypassing of tying posts or stakes in fruit-bearing hedges, in particular for trimming machines featuring a working head having two vertical rotating drive shafts on which are mounted two stacks of toothed cutting disks and an opening wheel. The stacks being able to assume a position where they come closer to each other and then intersect, or a position where they get further apart where the cutting disks of each stack find themselves distanced from the cutting disks of the other stack. Each opening wheel is mounted on its drive shaft through the intermediary of the speed reducer coupled to said shaft. The invention also concerns agricultural machines equipped with such a device.

Abstract: A motorized trimming apparatus having two blades placed side-by-side, has triangularly or trapezoidally cut teeth spaced apart from each other, at least one of said blades being movable to enable the cutting by shearing of wood inserted between said teeth, and connected to a drive device. The apparatus is characterized in that it comprises a means for controlling the drive device, said control means being constructed or configured so as to detect stops in movement of the movable blade(s) and to instantaneously and automatically control the reversal of the rotational direction of said drive device and thus control the reversal of the direction of movement of said movable blade(s).

Abstract: A power autonomous portable electric tool set includes a first sub-unit generating a mechanical operation of a tool having an electric actuator, a portable second sub-unit forming an electric energy source of the set including a battery and at least one electric or electronic module located in a vicinity of the battery for at least one of controlling and managing the battery, a third charger sub-unit for electrically recharging the battery, including at least one electric supply source, wherein the third charger sub-unit adapts a voltage and a current of the at least one electric supply source to recharge the battery, and a cutoff device structured and arranged to cutoff an electric supply of the electric actuator. Additionally, the power autonomous portable electric tool set includes the first sub-unit electrically disconnectably connectable to the second sub-unit and the third sub-unit electrically disconnectably connectable to the second sub-unit.