Crimping device and adjusting ring

• US 5,056,351 A
• Filed: 05/30/1990
• Issued: 10/15/1991
• Est. Priority Date: 01/29/1988
• Status: Expired due to Term

• Current Assignee: Parker Intangibles LLC (Parker-Hannifin Corporation)
• Original Assignee: Dayco Products LLC
• Inventors: Brown, Kenneth R., Stiver, C. Edward, Teti, George J., Pearson, Charles S.
• Primary Examiner(s): Crane, Daniel C.
• Application Number:
  US07/530,371
• Time in Patent Office: 503 Days
• Field of Search: 72/402, 72/453.01, 72/453.02, 72/453.03, 72/453.04, 72/453.15, 72/453.18, 72/446, 72/35, 72/36, 29/237, 100/99, 100/257
• US Class Current: 72/402
• CPC Class Codes: B21D 39/046 Connecting tubes to tube-like fittings
• CPC Class Codes: Y10T 29/5367 Coupling to conduit

Abstract

A device is provided for crimping a coupling on the end of a hose. The device has a die assembly for holding the hose and coupling spaced apart from and in axial alignment with a crimping mechanism comprised of a hydraulic cylinder and a pusher. The cylinder has an internal stop. A fluid operated actuator mechanism moves the crimping mechanism axially downward to engage the die assembly. The device has an adjusting mechanism for adjusting the crimping mechanism in a predetermined relationship to the die assembly. The crimping mechanism and the adjusting mechanism cooperate so that when the crimping mechanism engages the internal stop, the coupling is crimped to the hose end in accordance with the predetermined relationship. The adjusting mechanism contains an angular scale and a linear scale both with marked divisions. The adjusting mechanism provides for easy recalibration of the device.

Claims

1. In a device for crimping a coupling to an end of a hose, said device comprising support means, die means carried by said support means for holding said hose end and said coupling, and crimping means carried by said support means and spaced apart from said die means a certain distance and in axial alignment therewith and comprising a cylinder member having a stop means and a piston member carried by said cylinder member adapted to be moved axially relative to said cylinder member into engagement with said die means to axially move said die means therewith until a part of said piston member abuts said stop means, said crimping means further including a chamber established between said piston member and cylinder member so that pressurizing said chamber produces relative movement between the piston member and cylinder member, the improvement comprising adjusting means movably carried by said support means and being operatively interconnected to said cylinder member of said crimping means for adjusting the entire axial position of said crimping means relative to said adjusting means and to said die means as said adjusting means is moved relative to said support means so as to change said certain distance to a new certain distance whereby when said piston member of said crimping means is moved into engagement with said stop means said coupling is crimped to said hose end by said die means in accordance with a predetermined relationship that is determined by said new certain distance.

2. A device as set forth in claim 1 wherein said adjusting means comprises a calibration ring means.

3. A device as set forth in claim 2 wherein said calibration ring means has an outer periphery, and a first scale means disposed on said outer periphery of said ring means.

4. A device as set forth in claim 3 wherein said first scale means comprises an adhesive backed tape means disposed on said outer periphery of said ring means.

5. A device as set forth in claim 2 wherein said adjusting means has an outer periphery, said calibration ring means being of precise inside diameter which is removably slip fitted about said outer periphery of said adjusting means.

6. A device as set forth in claim 3 wherein said first scale means is inscribed onto said outer periphery of said ring means.

7. A device as set forth in claim 3 wherein said first scale means is embossed onto said outer periphery of said ring means.

8. A device as set forth in claim 1 wherein said adjusting means comprises a calibration means disposed in linear relationship with said cylinder member and said support means.

9. A device as set forth in claim 8 wherein said calibration means comprises block means attached to said cylinder member and adjustable index means attached to said support means.

10. A device as set forth in claim 9 wherein said adjustable index means is threadably interconnected to said support means.

11. A device as set forth in claim 9 wherein said block means has an outer surface, and a scale means disposed onto said outer surface.

12. A device as set forth in claim 11 wherein said scale means is inscribed onto said outer surface of said block means.

13. A device as set forth in claim 11 wherein said second scale means comprises adhesive backed tape means.

14. A device as set forth in claim 11 wherein said scale means is embossed onto said outer surface of said block means.