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Hydraulic tool with rapid ram

A technology of hydraulic tools and indenters, which is applied in the field of hydraulic tools and can solve problems such as thread occlusal loosening and disconnection

Active Publication Date: 2008-02-20
HUBBELL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, vibrations from tools such as battery-operated hydraulic tools can also cause this thread engagement to loosen or disengage

Method used

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  • Hydraulic tool with rapid ram
  • Hydraulic tool with rapid ram
  • Hydraulic tool with rapid ram

Examples

Experimental program
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Embodiment Construction

[0022] Referring to Figure 1, a perspective view of a hydraulic tool 10 incorporating features of the present invention is shown. Although the invention will be described with reference to the exemplary embodiments shown in the drawings, it should be understood that the invention may be practiced in many variations of the various embodiments. In addition, any suitable size, shape or type of components or materials could be used.

[0023] Tool 10 includes a battery operated hydraulic tool. Referring also to FIG. 2, the tool 10 generally includes a frame 12 (see FIG. 1) surrounded by a housing 13, a hydraulic fluid reservoir 14, a motor 16, a hydraulic pump 18, a movable ram 20 and battery 22. Tool 10 includes a working head 24 (see FIG. 1). The working head 24 comprises a part 26 of said frame and said movable ram 20 . The portion 26 and the ram 20 are rotatably connected to the remainder of the frame 12 . In the illustrated embodiment, the working head 24 comprises an ext...

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PUM

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Abstract

The present invention provides a hydraulic tool including a frame having a hydraulic conduit system; a ram movably connected to the frame; and a multi-speed ram advancement system for advancing the ram in at least two different rates of movement on the frame. The multi-speed ram advancement system includes a hydraulic pump connected to the hydraulic conduit system of the frame; and a conduit tube extending into a hydraulic chamber inside the ram and fixedly connected to the frame. The conduit tube is adapted to conduit hydraulic fluid from the hydraulic conduit system into the hydraulic chamber inside the ram. The conduit tube is axially rotatably connected to the frame and longitudinally stationarily fixed to the frame.

Description

technical field [0001] This invention relates to hydraulic tools and, more particularly, to hydraulic tools with a multi-speed rapid-forward ram system. Background technique [0002] US Patent No. 4,339,942 discloses a hydraulically operated crimping tool. The tool has a hydraulic piston with a central recess that receives a member with a channel. The rear end of the member is screwed into the frame of the tool and is adapted to direct (hydraulic) oil into the central recess. [0003] It would be desirable to propose a hydraulic tool, such as a crimping tool or a cutting tool, that has a fast-forward ram part, but which can accommodate the longer stroke length of the ram. Hydraulic tools such as crimping tools and cutting tools may include a rotatable head within which the ram of the tool is adapted to rotate relative to the frame of the tool. For such rotatable head hydraulic tools, a plumbing member as described in US Pat. No. 4,339,942 can cause problems due to thread ...

Claims

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Application Information

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IPC IPC(8): B21J9/18B23D15/14B23D29/00H01R43/042
CPCB23D15/14H01R43/0427B23D29/002B25B27/10
Inventor 约翰·D·勒福沃尔阿曼德·T·蒙特米尼托马斯·福谢
Owner HUBBELL INC