Abstract

The present invention relates to a system for increasing the safety of a portable electrical tool (10), comprising: a generator (40) of a radioelectric signal, which generator is electrically coupled to said user (1) so as to inject into the body of the user (1) said radioelectric signal (s(t)), said radioelectric signal (s(t)) then being emitted by said user (1) in the form of an electromagnetic signal; and the portable electrical tool (10), which is arranged to be borne by a member of the user and comprises: a machining member (4); a holding member (2); an actuator connected to the machining member (4); an antenna fastened to the machining member (4) and/or the holding member (2) and arranged to receive a radioelectric signal corresponding to the electromagnetic signal emitted by the user (1). A computing module (30) determines a distance between the user and the machining member and/or holding member on the basis of the electromagnetic signal received by the antenna, and modifies accordingly the speed of the actuator.

IPC Classes  ?

• B25F 5/00 - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• F16P 3/14 - Safety devices acting in conjunction with the control or operation of a machineControl arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact

Abstract

According to the present invention there is provided a hand-held binding apparatus (1) for binding a branch (3) to a support (2) using wire (4), the binding apparatus (1) comprising, a pulling member (5) which can hold a wire (4), and which is operable to move around the branch (3) and support (2), so that the pulling member (5) pulls the wire (4) around said branch (3) and support (2); and a tension adjusting means (6) which is selectively operable to push, or restrain, said wire (4) which the pulling member (5) pulls, to adjust the tension in the wire (4).

IPC Classes  ?

• A01G 17/08 - Tools for attaching hops, vines, or boughs to trellis-workTying devices

Abstract

A hand-held binding apparatus (1) for binding a branch (3) to a support (2) using wire (4), the binding apparatus comprising, a pulling member (5) which can hold a wire (4), and which is operable to move around the branch (3) and support (2), so that the pulling member (5) pulls the wire (4) around said branch (3) and support (2); a cutting system (13), which can be actuated to cut the wire; an actuating member (47) which can engage the cutting system to cut the wire, wherein the actuating member is provided on the pulling member (5) and positioned on the pulling member such that the actuating member (47) engages the cutting system to actuate cutting system, after the pulling member has moved around the branch and support, to cut the wire.

IPC Classes  ?

• A01G 17/08 - Tools for attaching hops, vines, or boughs to trellis-workTying devices

Abstract

A power hand tool comprising: - a mobile element and a fixed element - a rotary actuator - a rod (100) arranged to move the mobile element under the action of the rotary actuator - an asymmetric angled bearing (1) arranged between the rod (100) and the rotary actuator. The asymmetric angled bearing (1) allows the rod (100) to make a radial movement (Θ) at least equal to ± 0.5°, thus allowing a reduction in the power consumption, noise and heating of the power hand tool. The asymmetric angled bearing (1) comprises an opening intended to receive a connecting screw (200), and the rod (100) comprises an opening intended to receive this connecting screw (200). The connecting screw (200) is therefore intended to link the asymmetric angled bearing (1) and the rod (100).

IPC Classes  ?

• B25F 5/00 - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
• F16C 23/06 - Ball or roller bearings
• F16C 33/60 - RacewaysRace rings divided

Abstract

The invention relates to a handheld power tool (1), including: a mobile element (100) and a stationary element (102); a rotatable actuator; a ball nut (200); a ball screw (202) having a first end (202a) connected to the mobile element (100); and a universal joint (10, 12, 14) arranged so as to be driven by the rotatable actuator and so as to rotate the ball nut (200) on said ball screw (202) in order to move the ball screw (202), and thus the mobile element (100), relative to the stationary element (102). The universal joint can be advantageously retained inside two concentric spherical bearings (50a, 60a, 70a, 80a), thus making it possible to take up the axial forces in two directions. It is thus possible to eliminate any radial force on the ball screw (202) and have angularly variably rotational output.

IPC Classes  ?

• B26B 15/00 - Hand-held shears with motor-driven blades
• A01G 3/037 - SecateursFlower or fruit shears having motor-driven blades the driving means being an electric motor
• B23D 29/00 - Hand-held metal-shearing or metal-cutting devices
• F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
• F16D 3/00 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive

Abstract

A power hand tool comprising: a trigger (23); a motor (22); a blade (25) driven by said motor (22); an electronic circuit (10) for controlling the angular position or the speed of the motor (22) on the basis of the instantaneous position of the trigger. The electronic circuit (10) is arranged to detect a predefined movement sequence of the trigger (23) and to execute a function in response to the detection of such a sequence.

IPC Classes  ?

• A01G 3/037 - SecateursFlower or fruit shears having motor-driven blades the driving means being an electric motor

Abstract

The invention relates to a handheld power tool having a linear actuator (10) and a movable member (25), e.g. a blade, wherein the movable member (25) is directly connected to the actuator via a connecting rod (70), which pushes the movable member during a work stroke and pulls the movable member to a starting position during a return stroke. One end of the connected rod (70) is connected, via a concentric dual ball-and-socket joint, to the actuator as well as to a guide ring (80) that slides inside the cylindrical body (38) of the tool. Due to the arrangement of the invention, lateral and bending forces are taken up and transmitted to the body of the tool by the guide ring (80) without affecting the actuator. The ring (80) defines a sealed space that houses the actuator (10). An axial cavity of the connecting rod (70) partially houses the actuator (10) in the retracted position, thus reducing the length of the tool.

IPC Classes  ?

• A01G 3/037 - SecateursFlower or fruit shears having motor-driven blades the driving means being an electric motor
• A01G 3/02 - SecateursFlower or fruit shears

Abstract

An apparatus for powering an electric hand-held power tool device (20) by an output voltage (U) comprising at least two connectors (J11, J21) for connecting said apparatus to at least two batteries (B1, B2) at least two switches (10, 14) a command circuit of said switches (10, 14), said command circuit being arranged for commanding the powering of said electric hand-held power tool device by using - the battery (B1) which presents the highest open circuit voltage (OCV1) if said output voltage (U) is higher than the open circuit voltage (OCV2) of each of the other batteries - the battery (B1) which presents the highest open circuit voltage (OCV1) and at least one other battery (B2) if the said output voltage (U) is lower than the open circuit voltage (OCV2) of said other battery (B2), said battery (B1) which presents the highest open circuit voltage (OCV1) and said at least one other battery (B2) being connected in parallel.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries