# US 2009/0260609 A1 · Bow mitigating initial torque

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- Number: US 2009/0260609 A1
- Document ID: US20090260609A1
- Status: Published application
- Kind: A1
- Application number: 12/386,533
- Filed: 2009-04-20
- Published: 2009-10-22
- Earliest claimed: 2008-04-22
- Inventors: Kyung Rae Park
- Web page: https://patentgrep.com/patent/US20090260609A1

## CPC

- F41B 5/1426: {Bow stabilisers or vibration dampers}
- F41B: WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR (projectiles for fishing, e.g. fish-spears, A01K81/00; sports implements for throwing A63B65/00, e.g. boomerangs A63B65/08; stationary apparatus for projecting sports balls, e.g. tennis balls, A63B69/40; throwing or slinging toys A63H33/18; knives, axes B26B; projectiles or missiles other than those incorporating springs as projecting means F42B6/00)

## Abstract

A bow capable of mitigating a bad motion occurring in an initial stage of an arrow shootings includes a handle gripped by a user's hand; upper and lower limbs respectively coupled to upper and lower portions of the handle; a string having ends coupled to the upper and lower limbs; and a vibration damper coupled to the handle, the vibration damper being installed within a ±7 cm distance range in the up-down direction from a distance center point of the handle with the upper and lower limbs coupled thereto and positioned on a front surface of a grip portion of the handle.

## Claims

### Claim 1

A bow, comprising:
a handle gripped by a user's hand;
upper and lower limbs respectively coupled to upper and lower portions of the handle;
a string having ends coupled to the upper and lower limbs; and
a vibration damper coupled to the handle, wherein the vibration damper is positioned at a central portion of the handle with the upper and lower limbs coupled thereto and positioned on a front surface of a grip portion of the handle.

### Claim 2 (depends on 1)

The bow as claimed in claim 1, wherein the vibration damper is coupled within a ±7 cm distance range from a distance center point between the upper and lower limbs coupled to the handle in the up-down direction thereof.

### Claim 3 (depends on 1)

The bow as claimed in claim 1, wherein the vibration damper comprises:
a fixing portion coupled and fixed to a body of the handle;
a vibration absorption portion mounted in the fixing portion to receive vibration occurring in the handle, transfer the vibration to the outside, and absorb and mitigate some of the vibration;
a coupling portion including the vibration absorption portion therein and coupled to the fixing portion; and
a weight coupled to the vibration absorption portion.

### Claim 4

A damper for a bow coupled to a handle of the bow, comprising:
a fixing portion coupled and fixed to a body of the handle;
a vibration absorption portion mounted in the fixing portion to receive vibration occurring in the handle, transfer the vibration to the outside, and absorb and mitigate some of the vibration;
a coupling portion including the vibration absorption portion therein and coupled to the fixing portion; and
a weight coupled to the vibration absorption portion.

### Claim 5 (depends on 4)

The damper as claimed in claim 4, wherein the vibration absorption portion comprises a vibration transfer portion mounted in the fixing portion to receive vibration occurring in the handle and transfer the vibration to the outside; and an elastic portion for absorbing the vibration of the vibration transfer portion to mitigate the vibration.

### Claim 6 (depends on 5)

The damper as claimed in claim 5, wherein the elastic portion is made of an elastic body comprising at least one of a spring, rubber, urethane and silicone.

### Claim 7 (depends on 5)

The damper as claimed in claim 5, wherein the elastic portion comprises a horizontal elastic absorption portion for absorbing and mitigating front-rear vibration of the vibration transfer portion, and a peripheral elastic absorption portion for absorbing up-down-left-right vibration of the vibration transfer portion.

### Claim 8 (depends on 7)

The damper as claimed in claim 7, wherein the horizontal elastic absorption portion is formed in the shape of a spherical silicone ball, and the peripheral elastic absorption portion is formed of an elastic body comprising at least one of rubber, urethane and silicon and in the shape of a donut surrounding the vibration transfer portion.