# US 2025/0144779 A1 · Hammer assembly for a power tool

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- Number: US 2025/0144779 A1
- Document ID: US20250144779A1
- Status: Published application
- Kind: A1
- Application number: 18/989,813
- Filed: 2024-12-20
- Published: 2025-05-08
- Earliest claimed: 2023-08-29
- Inventors: Ayham Samir Alzoubi
- Web page: https://patentgrep.com/patent/US20250144779A1

## CPC

- B25D 1/12: having shock-absorbing means
- B23P 9/04: Treating or finishing by hammering or applying repeated pressure
- B25D 17/24: Damping the reaction force {(resiliently mounted handles B25D17/043; dampers in connections of hammers to backhoes E02F3/966)}
- B25F 5/02: Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)}
- B25D 2222/57: Elastomers, e.g. rubber
- B25D 2250/371: Use of springs
- B25D: PERCUSSIVE TOOLS {(percussive machines for forging B21J; hand-held drilling machines, in general B23B45/00, for wood B27C3/08; drilling machines, used for mining or quarrying, with reciprocating tool which is turned intermittently when out of contact with the working face E21B1/00)}
- B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q)
- B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)}

## Abstract

A hammer assembly for a power tool. The hammer assembly provides a first, proximal engagement portion couplable directly to a backside of the power. A second, distal engagement portion is directly connected to the first engagement portion. A head portion is directly connected to the second engagement portion. The second engagement portion provides one or more chambers, each chamber housing a spring for storing energy imparted by compressive forces against the head portion. Each spring directly interconnecting the first and second engagement portions through an open side of the chamber facing the first engagement portion. There is a gap between the first and second engagement portions, between their respective distal and proximal surface, which is spanned by the spring, enabling the latter to deflect before said surfaces contact under compressive loading.

## Claims

### Claim 1

A method of adding hammering functionality to a power tool, the method comprising:
attaching a hammer assembly to a backside of the power tool, wherein the hammer assembly comprises:
a first side of a distal engagement portion, wherein the first side operatively associates with the backside of the power tool;
the distal engagement portion having one or more chambers housing an energy storage device so that a portion of a compressive force applied to a second side of the distal engagement portion is absorbed by the energy storage device; and
a head portion directly connected to said second side.