公开(公告)号：USD1060907S1

公开(公告)日：2025-02-04

申请号：US29874579

申请日：2023-04-21

Applicant: MAKITA CORPORATION

Designer： Yali Zhou ,  Zhiwei Jiang ,  Mizuki Yamamoto

公开(公告)号：USD1008768S1

公开(公告)日：2023-12-26

申请号：US29839501

申请日：2022-05-20

Applicant: MAKITA CORPORATION

Designer： Kazunori Hattori ,  Mizuki Yamamoto ,  Xianming Li

Abstract: FIG. 1 is a front, left and top perspective view of a portable electric hammer drill body showing our new design;
FIG. 2 is a rear, right and top perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof;
FIG. 8 is a right side elevational view thereof; and,
FIG. 9 is a front, left and top perspective view of the portable electric hammer drill body in accordance with our new design illustrating a state in which environmental structures (a side handle attachment and a battery) are attached to the portable electric hammer drill body.
The broken lines in the drawings illustrate the environmental structures or portions of the portable electric hammer drill body which form no part of the claimed design.

公开(公告)号：US12090591B2

公开(公告)日：2024-09-17

申请号：US18167554

申请日：2023-02-10

Applicant: MAKITA CORPORATION

Inventor： Mizuki Yamamoto ,  Yoshitaka Machida ,  Kiyonobu Yoshikane

IPC: B23Q11/00 ,  B25D17/20

CPC classification number: B23Q11/0046 ,  B25D17/20 ,  B23Q11/0071 ,  B25D2217/0065

Abstract: A dust collection cup allows a bit tip to be viewable without being detached or replaced. A dust collection cup is attachable to a front cylindrical portion of a hammer drill. The dust collection cup in an attached state allows a bit attached to the front cylindrical portion to extend through the dust collection cup. The dust collection cup includes an attachment attachable to the front cylindrical portion, and a body connectable to the attachment. The body includes an extendable unit including at least a portion in an axial direction retaining a predetermined length.

公开(公告)号：US11897109B2

公开(公告)日：2024-02-13

申请号：US17575776

申请日：2022-01-14

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Mizuki Yamamoto

IPC: B25D17/04

CPC classification number: B25D17/043 ,  B25D2211/068 ,  B25D2250/345 ,  B25D2250/371

Abstract: An objective is to provide a technique to securely protect the striking tool even when the striking tool inadvertently falls down. A striking tool including a rotating shaft relatively rotatably connect a main body with a handle, a first elastic member reducing transmitting of vibration from the main body to the handle in a case that the handle relatively rotates to the main body, wherein the handle includes a battery mounting portion to which battery to drive the motor is attachable and the handle is arranged to relatively move to the main body across the rotating shaft, and an adjuster such that the relative movement amount of the handle to the main body in a predetermined direction is adjusted to be larger than the relative movement amount in a direction other than the predetermined direction.

公开(公告)号：US12246428B2

公开(公告)日：2025-03-11

申请号：US17701074

申请日：2022-03-22

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Mizuki Yamamoto

IPC: B25D17/08

Abstract: Two balls can reliably retract for smooth insertion of a tip tool into a tool holder. A hammer drill includes a tool holder, two balls in reception holes in the tool holder, a guide washer urging the balls forward in the reception holes with a coil spring, a pressure ring adjacent to a front of the guide washer, and an operation sleeve allowing the pressure ring to move backward and forward between locked and unlocked positions of the two balls. The guide washer includes, on its front surface, a projection toward the pressure ring to cause, with the pressure ring at the locked position, the guide washer to be inclined with respect to an axis of the tool holder for a first ball to move more backward than a second ball.

公开(公告)号：US11529724B2

公开(公告)日：2022-12-20

申请号：US16809636

申请日：2020-03-05

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Mizuki Yamamoto

IPC: B25D11/04 ,  B25D11/06

Abstract: A striking tool restricting movement of an intermediate member toward a striker reliably prevents no-load strokes. A hammer drill includes a cylindrical tool holder holding a tip tool, a motor, a piston that reciprocate with rotation from the motor, a striker that reciprocate in cooperation with the piston, an intermediate member reciprocably accommodated in the tool holder between the striker and the tip tool and in contact with a rear end of the tip tool at a normal strike to indirectly transmit a strike from the striker to the tip tool, and at least two ring members that move in a front-rear direction accommodated in the tool holder at a front of the intermediate member between the tool holder and the intermediate member. At least one ring member is made of metal.

公开(公告)号：US10987792B2

公开(公告)日：2021-04-27

申请号：US16289004

申请日：2019-02-28

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Yoshiro Tada ,  Mizuki Yamamoto

IPC: B25D17/24 ,  B25D11/06 ,  B25D11/04

Abstract: An impact tool includes a tubular tool holder, a hammering mechanism, a resistor, and a biasing member. An impact element moves forward and rearward in conjunction with a piston. An intermediate element is housed movable back and forth between the impact element and a tip tool. The intermediate element abuts on a rear end of the tip tool to indirectly transmit a striking force from the impact element to the tip tool in a normal striking. The resistor is configured to abut on at least one of the intermediate element and the tip tool to apply a resistance to a front-rear movement of at least one of the intermediate element and the tip tool in a non-striking state. The biasing member disposed on the tool holder biases the resistor to a side of at least one of the intermediate element and the tip tool.