公开(公告)号：US11478843B2

公开(公告)日：2022-10-25

申请号：US17507092

申请日：2021-10-21

Applicant: MOBILETRON ELECTRONICS CO., LTD.

Inventor： Cheng-I Teng ,  Tung-Chin Kuo

IPC: B21J15/32 ,  B21J15/10 ,  B21J15/26

Abstract: A mandrel collector includes a case body and an end plate. The case body has a connecting end for being connected to a rivet gun. The end plate is engaged with the case body and is opposite to the connecting end. The end plate has at least one receiving hole, wherein a hole section of the receiving hole is a hexagonal hole with six walls. The walls include three first walls and three second walls. Each of the first walls is connected between adjacent two of the second walls. The hole section is defined to have a central axis and a reference plane perpendicular to the central axis. On the reference plane, a side length of at least one of the first walls is smaller than side lengths of the second walls. With such design, the receiving hole could receive a head of an adapter and could rotate the adapter as a screwdriver.

公开(公告)号：US20240140556A1

公开(公告)日：2024-05-02

申请号：US18221801

申请日：2023-07-13

Applicant: MOBILETRON ELECTRONICS CO., LTD.

Inventor： Cheng-I Teng ,  Yi-Hsing Hsu

IPC: B62M6/55 ,  B62J45/421 ,  B62M6/50 ,  B62M11/02 ,  G01L5/00 ,  H02K7/116 ,  H02K11/33

CPC classification number: B62M6/55 ,  B62J45/421 ,  B62M6/50 ,  B62M11/02 ,  G01L5/0042 ,  H02K7/116 ,  H02K11/33 ,  B62J45/411

Abstract: A coaxial mid-drive power device of a bicycle includes a reducing structure and a hollow shaft motor engaged with the reducing structure that are disposed in a motor base. An output end of the reducing structure is operatively coupled with a one-way bearing bracket with a sprocket base via a one-way bearing. A crank spindle engaged with the one-way bearing bracket through another one-way bearing penetrates through the motor base. The two one-way bearings respectively have opposite rotation directions and are respectively located on different sides, i.e., an inside and an outside, of the one-way bearing bracket. A strain gauge disposed on the crank spindle is electrically connected to an annular conductive rail assembly engaged with the crank spindle and an elastic sheet assembly on a control circuit board in the motor base, hence the strain gauge could directly obtain a change in a torque of the crank spindle.

公开(公告)号：US11958567B1

公开(公告)日：2024-04-16

申请号：US18221801

申请日：2023-07-13

Applicant: MOBILETRON ELECTRONICS CO., LTD.

Inventor： Cheng-I Teng ,  Yi-Hsing Hsu

IPC: B62M6/55 ,  B62J45/421 ,  B62M6/50 ,  B62M11/02 ,  G01L5/00 ,  H02K7/116 ,  H02K11/33 ,  B62J45/411

CPC classification number: B62M6/55 ,  B62J45/421 ,  B62M6/50 ,  B62M11/02 ,  G01L5/0042 ,  H02K7/116 ,  H02K11/33 ,  B62J45/411 ,  H02K2211/03

Abstract: A coaxial mid-drive power device of a bicycle includes a reducing structure and a hollow shaft motor engaged with the reducing structure that are disposed in a motor base. An output end of the reducing structure is operatively coupled with a one-way bearing bracket with a sprocket base via a one-way bearing. A crank spindle engaged with the one-way bearing bracket through another one-way bearing penetrates through the motor base. The two one-way bearings respectively have opposite rotation directions and are respectively located on different sides, i.e., an inside and an outside, of the one-way bearing bracket. A strain gauge disposed on the crank spindle is electrically connected to an annular conductive rail assembly engaged with the crank spindle and an elastic sheet assembly on a control circuit board in the motor base, hence the strain gauge could directly obtain a change in a torque of the crank spindle.

公开(公告)号：US11478908B2

公开(公告)日：2022-10-25

申请号：US16933536

申请日：2020-07-20

Applicant: MOBILETRON ELECTRONICS CO., LTD.

Inventor： Cheng-I Teng ,  Ying-Tang Wang

IPC: B25B21/02 ,  B25B23/00

Abstract: An impact wrench includes a front housing and a motor. A transmission mechanism and an impact mechanism are disposed in the front housing. A transmission direction of a force outputted by the motor is changed via the transmission mechanism to drive a working member of the impact mechanism to rotate. A part of the working member is protruded and is exposed outside the front housing. The front housing includes a seat and a covering member which are detachably engaged. The detachable engagement between the seat and the covering member is convenient for a user to maintain an inside of the impact wrench.

公开(公告)号：USD1044452S1

公开(公告)日：2024-10-01

申请号：US29881866

申请日：2023-01-06

Applicant: MOBILETRON ELECTRONICS CO., LTD.

Designer： Cheng-I Teng ,  Tung-Chin Kuo

Abstract: FIG. 1 is a top, front and right side perspective view of a part of case of power tool embodying our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a bottom, front and left side perspective view thereof; and,
FIG. 9 is a perspective view thereof, in which the article is shown with an exemplary power tool in a state of use.
The broken lines in FIGS. 1-8 illustrate portions of the part of case power tool that form no part of the claimed design. The broken line showing the power tool in FIG. 9 is provided for the purpose of illustrating environmental structure and also do not form part of the claimed design.

公开(公告)号：US12023792B2

公开(公告)日：2024-07-02

申请号：US18097318

申请日：2023-01-16

Applicant: MOBILETRON ELECTRONICS CO., LTD.

Inventor： Cheng-I Teng ,  Tung-Chin Kuo

IPC: B25D17/04

CPC classification number: B25D17/04 ,  B25D2250/121

Abstract: An impact tool having an exchangeable handle structure includes an impact tool main body. A rear-end portion of the impact tool main body forms an engaging portion having two lugs respectively on a top surface and a bottom surface and an annular body on a rear-end surface. Two penetrated portions respectively extend from a top side and a bottom side of the annular body. A left-half part and a right-half part of a front-end portion of a casing cover the lugs and the annular body. A plurality of fixing members respectively passes through the lugs, arm casings formed by the casing, the penetrated portions, and a rear annular casing of the casing. The rear annular casing is connected to a handle having a triggering member. The impact tool main body is detachably engaged with a handle device through the engaging portion.