IP Library › Granted Patent US 9,365,401
Granted Patent B2
US 9,365,401 · App. 13/990,543 · Granted Jun 14, 2016

Battery powered forklift

Inventors: Norikazu Nakazawa (Oyama, JP); Kouji Nishiyama (Oyama, JP)
Assignee: Komatsu Ltd.
B66F9/075B60K1/00B60K1/04B60K11/06B60K11/08B66F9/07B66F9/07518B66F9/07531B66F9/07572B66F9/07595B66F9/22B60K2001/001B60K2001/003B60K2001/0416B60K2001/0422B60K2025/005B60K2025/026B60L2200/42B60Y2200/15
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Quick Facts
Patent No.
US 9,365,401
App. No.
13/990,543
Granted
Jun 14, 2016
Kind
B2
Abstract

A battery powered forklift including a fork mounted on a front of a body to which a front wheel and a rear wheel are attached, a counter weight provided on a rear of the body, and a driving electric motor that allows the body to travel, the forklift includes: a battery mounted on the body above the rear wheel; a cargo-handling electric motor configured to generate oil pressure on operating oil that operates the fork; a control device configured to control the cargo-handling electric motor and the driving electric motor; a storage space provided in the body, below a bottom of the battery, and above a bottom of the body for storing the cargo-handling electric motor and the control device; and a fan that exhausts air in the storage space to an outside.

Claims (13)

1. A battery powered forklift including a fork mounted on a front of a body to which a front wheel and a rear wheel are attached, a counter weight provided on a rear of the body, and a driving electric motor that allows the body to travel, the forklift comprising:

a battery mounted on the body above the rear wheel;

a cargo-handling electric motor configured to generate oil pressure on operating oil that operates the fork;

a cargo-handling control device configured to control the cargo-handling electric motor;

a driving control device configured to control the driving electric motor;

a storage space provided in the body, below a bottom of the battery, and above a bottom of the body for storing the cargo-handling electric motor, the cargo-handling control device and the driving control device, the storage space including an opening on a front of the storage space;

a heat radiator provided in the storage space and attached on the bottom of the body, the heat radiator having a length side and a width side, the length side being parallel to a lengthwise direction of the body, and

a fan that exhausts air in the storage space to an outside, wherein the fan includes at least one fan on each side of the body in a widthwise direction,

wherein the cargo-handling control device and the driving control device are mounted onto the length side of the heat radiator, and the driving control device is arranged in front of the cargo-handling control device.

2. The battery powered forklift according to claim 1 , wherein the storage space further stores an operating oil tank that holds the operating oil.

3. The battery powered forklift according to claim 1 , wherein the storage space further stores a charging device that charges the battery.

4. The battery powered forklift according to claim 3 , wherein the fan is provided posterior to the control device or the charging device.

5. The battery powered forklift 1 according to claim 1 , wherein the fan is provided on a rear of the storage space.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 15, 2013
From: NAKAZAWA, NORIKAZU; NISHIYAMA, KOUJI
To: KOMATSU LTD.
Reel/Frame 031016/0206 →
Continuity (1)
Related Publication 20150298950A1 · Oct 22, 2015