Class / Patent application number | Description | Number of patent applications / Date published |
173049000 | DRIVE BY MEANS REACTING TO ROTATING ECCENTRIC MASS | 10 |
20080283258 | Striking device of a power tool - A striking device of a power tool includes a striking room, two striking blocks and a transmission shaft. The striking room has a pivotal restricting groove at its two sides respectively, and two supporting surfaces formed adjacent to two sides of the pivotal restricting groove. Each striking block has a projected pivot formed axially, pivotally installed between two pin holes of the striking room via two pins. Two sides of the projected pivot are extended with striking portions, and the transmission shaft has two restricting blocks provided with a struck segment and a displacing segment. When one of the striking portion strikes one of the struck segments, the other of the striking portions just leans on the supporting surface to activate the transmission shaft to rotate. When the striking portion moves away after striking, it passes through the corresponding displacing segment to carry out next strike. | 11-20-2008 |
20090000797 | Mounted Beam Brushhead For Transverse Drive Power Toothbrush - The resonator assembly for a power toothbrush includes an elongated solid rod made from stainless steel, having a back assembly which includes permanent magnets which interact with an electromagnet in a drive system in the handle of the toothbrush to produce a transverse motion of the rod. A mount member is connected to the rod at a selected point along its length, and is mounted to a toothbrush housing so that the rod resonates about the mount member at a selected frequency. | 01-01-2009 |
20090020299 | Hand-held power tool with a pneumatic percussion mechanism - A hand-held power tool includes a motor-driven percussion mechanism including a guide tube ( | 01-22-2009 |
20090188687 | Vibration generator for a vibration pile driver - A vibration generator for a vibration pile driver has imbalance masses that can rotate and which are disposed on shafts. The rotational position of the imbalance masses can be adjusted relative to one another. A control and regulation circuit is provided, which has the following components: a memory unit for storing ground composition data sets or task-specific default data sets with defined operational characteristic variables; sensors for continuous detection of the defined operational characteristic variables; an evaluation unit for comparing the operational characteristic variables that are determined with the operational characteristic variables of the selected default data set; a regulation device for regulating the vibration generator; and a control device for controlling the means for adjusting the rotational position of the imbalance masses relative to one another. The vibration generator is part of a vibration pile driver. | 07-30-2009 |
20090200055 | BATTERY OPERATED CORDLESS VIBRATORY - A cordless vibratory pile driver (“vibro”) may use one or more batteries to provide the requisite power. The cordless vibro may sit in a stand that also recharges the unit while it is in the stand when the device is not in use. The replaceable batteries are mounted as part of the suppressor housing on top of the housing that contains the eccentrics. The batteries are balanced on both sides to distribute the weight evenly. A small battery powered electric hydraulic pump sits in the suppressor housing to provide oil to open and close the jaws. A digital hand held remote control sends the necessary signals to the machine to open and close the jaw and to start and stop the vibration. | 08-13-2009 |
20090314506 | ELECTRIC POWER TOOL - The invention is based on an electric power tool having at least one drive unit and a gear unit, where the gear unit is a drive element for applying force to a piston unit. It is proposed that the drive element and the piston unit be arranged in an axially parallel manner. At least a region of the drive element overlaps axially with a longitudinal portion of the piston unit. The drive unit is arranged approximately centrally in an axial extension of the piston unit and the longitudinal axis of the drive unit is arranged transversely to the piston longitudinal axis. | 12-24-2009 |
20120279739 | FIXED STRUCTURE OF AN ECCENTRIC ROD, AND VIBRATION GENERATOR - An electric toothbrush as a vibration generator is provided with a case, a motor, an eccentric rod, a stem, and an oral hygiene member. The eccentric rod has an eccentric weight portion and a rod portion connected to a drive shaft of the motor. The angle between the first central axis of the eccentric weight portion and an extension line, defined by extending the second central axis of the rod portion towards the eccentric weight portion, is greater than 0 degrees and equal to or less than approximately 10 degrees in a state in which one end of the eccentric rod is not inserted into a shaft receiving portion. In this way, a fixed structure of an eccentric rod and a vibration generator are obtained which reduce noise generated by vibration when run at high as well as at low rotation speeds. | 11-08-2012 |
20140020918 | Hand-Held Tool With Rotary-Oscillatory Drive - The invention discloses a hand-held tool having a housing with a gear head, having a motor shaft that can be driven in rotation by a motor and that can be coupled, by means of an eccentric coupling mechanism, to a tool spindle in order to drive the latter, wherein the tool spindle can be driven in an oscillatory rotating manner about the longitudinal axis thereof and is configured to receive a tool, wherein the eccentric coupling mechanism has a coupling member which is coupled to the motor shaft and to the tool spindle, and wherein the coupling member is furthermore mounted pivotably on a carrier element coupled to the housing. The carrier element is preferably capable of being moved in translation or pivoted relative to the housing. | 01-23-2014 |
20150027744 | VARIABLE MOMENT RESONANCE-FREE VIBRO HAMMER - The present invention relates to a vibro hammer; which is mounted on parts such as steel formed pipes and profiles and used in driving and extracting these parts to and from the soil, and is able to rotate without resonance; and which, by means of the transmission device whose main parts are the stepped shaft, toothed piston and transmission body, performs phase change between the upper weight set and lower weight set with fewer parts. | 01-29-2015 |
20150090469 | Vibratory Hammer with Passive Lubrication System for Bearings - Small wells cut into the upper interior surface of the head plate collect oil that is sprayed forcefully upward by the rotating gears and eccentric weights and channels that oil through a throughbore across the width of the head plate, routing the oil into a hose or bored channel at each end of the throughbore, with oil in the hoses or bored channels flowing through bearing access ports into the bearings on the rotating eccentric weights. A separate oil collection well, throughbore and hose arrangement is provided for each of the eccentric weight and gear sets and may be provided for pinion gears connected to hydraulic drive motors. | 04-02-2015 |