Chervon Limited

Nanjing Chervon Industry Co., Ltd.

Chervon (hk) Limited

Masatoshi Fukinuki

Gan Wei

Toshinari Yamaoka

Zhiguo Chen

Guillaume Keller

Wei Lu

Hongtao Ke

Yasheng Chen

Rui Xu

Xiaoyong Wang

Xiang Zhao

Guoming Tong

Di Wu

Yang Zhou

Chen Wang

Rui Zhan

Shuai Chen

Biao Zhang

Hao Gao

Chao Meng

Jun Le

Lei Tian

Shaobo Liu

Jiayu Li

Liangzhe Wang

Chuan Geng

Hengyong Hu

Yuyi Zheng

Pengpeng Xue

Guanhai Shao

A handheld power tool including a housing including a barrel and a head housing; a drive mechanism including an electric motor and a drive shaft, where the electric motor outputs power through the drive shaft; a transmission mechanism including a gear assembly; and an output mechanism including an output shaft for outputting power to the outside and at least partially disposed in the head housing; where the transmission mechanism drivingly connects the drive mechanism to the output mechanism. The barrel is formed with a first accommodation cavity and a second accommodation cavity, the electric motor is at least partially mounted in the first accommodation cavity, and the gear assembly is at least partially mounted in the second accommodation cavity.

Handheld power tool

A power tool includes a power mechanism including a drive shaft; an oscillating mechanism; an airflow element connected to the drive shaft; a heat conducting portion supported on the drive shaft, where the airflow element is disposed on the heat conducting portion. The oscillating mechanism includes a support assembly sleeved on the drive shaft and an oscillating member. Heat generated by the oscillating mechanism is conducted to the heat conducting portion through the drive shaft, the heat conducting portion has a thermal conductivity greater than or equal to 50 W/m·° C., and a ratio of an axial distance Lof a portion of the heat conducting portion in contact with the drive shaft to a distance Lof a thermally conductive portion of the drive shaft between the heat conducting portion and the support assembly is greater than or equal to 0.1 and less than or equal to 5.

Power tool

An impact tool includes an impact assembly and a housing. The impact assembly is used for applying an impact force to an output shaft and includes a main shaft driven by a drive shaft, an impact block connected to the main shaft, and a hammer anvil mating with and struck by the impact block. A motor is at least partially accommodated in the housing. A length L from a rear end of the housing to a front end of the output shaft is greater than or equal to 78 mm and less than or equal to 97 mm and an outer circumferential diameter D of the housing is less than or equal to 60 mm.

Impact tool

A power tool includes a shaft locking assembly and an electric motor. The shaft locking assembly includes a first state where a chuck is restrained from rotating and a second state where the chuck is released to rotate. The shaft locking assembly includes multiple locking portions and an execution portion. The multiple locking portions are formed on or connected to a drive shaft or the chuck. The execution portion is optionally engaged with at least one locking portion. When the execution portion moves to a first position, the execution portion is engaged with the at least one locking portion such that the shaft locking assembly is in the first state. The electric motor includes a stop state where the first position is in the at least one locking portion when the electric motor stops.

A hand-held band saw includes a band saw body and an supporting device. The supporting device includes a fixing member, a slider, a supporting member, and a connection assembly. The fixing member is fixedly connected to the band saw body, the slider is slidably connected to the fixing member, the supporting member supports a workpiece and is connected to the slider, and the connection assembly connectes the slider and the supporting member. When the slider moves, the connection assembly is capable of enabling the supporting member to move along with the slider. The connection assembly comprises a buffer member mounted between the slider and the supporting member.

Hand-held band saw

A brushless motor includes a stator and a rotor installed in the stator. The stator includes a front insulating frame and a rear insulating frame. The rotor includes a rotating shaft, a front bearing, a rear bearing, a front-end cover and a rear-end cover. The front-end cover is located on the front side of the rotor and installed on the front bearing. The rear-end cover is located on the rear side of the rotor and is installed on the rear bearing and abuts against the rear insulating frame. The front side of the front insulating frame is provided with multiple first snap parts. The front-end cover is provided with multiple second snap parts in the circumference. The first snap parts are snap-fitted with the second snap parts.

Brushless motor and handheld power tool using the same

A power tool, including an output member, a motor, a housing, a transmission device, and a shifting device. The shifting device includes a first shifting element, a second shifting element, an operation member, and a connecting member. The first shifting element is capable of switching between a first position and a second position, and the second shifting element is capable of switching between a third position and a fourth position. When sliding relative to the housing, the operation member drives the first shifting element to switch between the first position and the second position, and a position of the second shifting element remains unchanged. When the operation member rotates relative to the housing, the connecting member drives the second shifting element to switch between the third position and the fourth position, and a position of the first shifting element remains unchanged.

A nailer device has a housing containing a motor and a transmission mechanism. The housing has a nozzle portion with a striking rod for striking a nail arranged therein, the striking rod being moved in a reciprocating manner. A rotating shall is mounted in the housing and the rotating shaft is coupled to the output shaft of the motor through the transmission mechanism. An impact member surrounds the rotating shaft and is moved with the rotating shaft. Corresponding slots are formed on the rotating shaft and the impact member respectively and mate with each other with engagement members being contained in the corresponding slots.

Nailer device

A nailer device is carried within a housing having a nozzle portion wherein the nozzle portion is connected with the housing via a head portion of the housing. The nozzle portion includes a sleeve, a fixing member, and a magnetic member located between the sleeve and the fixing member. The fixing member is mounted on the sleeve and the fixing member has a groove in which the magnetic member is arranged.

An electrical device, such as a nailer device, has a motor and a gear housing containing a transmission mechanism. The transmission mechanism is coupled to the motor for driving an impact member. The transmission mechanism includes a shaft having a through-hole wherein a first opening of the through-hole is communicated with the interior of the gear housing and a second opening of the through-hole is communicated with an exterior of the gear housing.

A nailer device has a housing containing a motor and a striking device arranged in a compact manner. A transmission mechanism is mounted in the housing for translating the rotating motions of the motor into the periodic impact motions upon the striking device. The transmission mechanism includes an impact assembly which imparts the periodic impact motions upon the striking device.

A nailer device includes a housing having a nozzle portion formed in an upper end thereof. A motor and a rotary-linear motion transmission mechanism are arranged in the housing and the rotary-linear transmission mechanism functions to couple an output shaft of the motor to a striking rod disposed in the nozzle portion to thereby move the striking rod in a reciprocating manner. A bias device exerts a force on the striking rod towards the outside of the housing along a longitudinal direction of the striking rod.

A circular saw has a housing, a direct current motor, a battery assembly, a handle having first and second ends, a circular saw blade and a base plate. The motor is located outside of an area defined by the radius of the circular blade and between the first and second ends of the handle and the blade is laterally aligned with the handle. The circular saw also has a center of gravity which lies close to the plane defined by the saw blade, is below the handle and is within the length of the base plate. As a result of this arrangement, the circular saw of the present invention reduces the influence of the torque created during a cutting operation and improves the balance and operation of the circular saw.

Circular saw having a direct current power supply

A nailer device has a housing containing a motor, a gear box, a transmission mechanism, and a striking rod. The motor, the gear box, and the transmission mechanism cooperate to cause the striking rod to be moved back and forth. The striking rod has a peripheral outer surface and a longitudinal axis and the striking rod and the gear box are connected through a sliding connection structure which allows the striking rod to be moved along its longitudinal axis and which prevents the striking rod from rotating around its longitudinal axis.

Growing community of inventors

Nanjing, China

Masatoshi Fukinuki