US3780814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Setting device for the stroke position of a reciprocating tool
Assignee: Trumpf SE and Co KG
•
Filing: 1972-07-11
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Granted: 1973-12-25
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Expires: 1992-07-11
Abstract
Abstract A reciprocating tool, such as a stamping or nibbling die, has an adjustment which is driven by an electric motor. An electromechanical, photoelectric, or air pressure checking device checks the stroke position of the tool and controls operation of the motor driving the adjustment. The checking device becomes operative automatically responsive to insertion of a new tool into a tool holder and, responsive to deviation of the stroke position from a nominal or preset value, controls the motor to operate the adjustment in a direction to restore the stroke position to the nominal value. When the stroke position attains the nominal value, the supply of energy to the motor, to the checking device, or to both is automatically interrupted.
Inventors
- 👤 E Herb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:12
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/14; B21; B21D; B21D28/00; B21D28/002; B21D28/005; B21D28/24; B21D28/34; B21D28/346; B30B1/00; B30B1/26; B30B1/263; B30B15/0029; B30B15/0041; Y; Y10; Y10S; Y10S83/00; Y10S83/916; Y10T; Y10T74/00; Y10T74/16; Y10T74/1608; Y10T74/1616; Y10T83/00; Y10T83/869; Y10T83/8696; Y10T83/87
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
109 words
A setting device, for automatically setting the stroke position of a reciprocating tool, such as a stamping or nibbling die, having an adjustment, said setting device comprising, in combination, driving means operating said adjustment; checking means operable to check the stroke position of the tool and controlling said driving means; means supplying energy to at least one of said checking means and said driving means; said checking means, responsive to deviation of the stroke position from a nominal value, controlling said driving means to operate said adjustment in a direction to restore the stroke position to such nominal value; and means operable to inhibit operation of said driving means.
Claim 2
Dependent Claim
109 words
A setting device, for automatically setting the stroke position of a reciprocating tool, such as a stamping or nibbling die, having an adjustment, said setting device comprising, in combination, driving means operating said adjustment; checking means operable to check the stroke position of the tool and controlling said driving means; means supplying energy to at least one of said checking means and said driving means; said checking means, responsive to deviation of the stroke position from a nominal value, controlling said driving means to operate said adjustment in a direction to restore the stroke position to such nominal value; and means operable to inhibit operation of said driving means.
Claim 3
Dependent Claim
30 words
A setting device, as claimed in claim 1, in which said last-named means interrupts the supply of energy to at least one of said checking means and said driving means.
Claim 4
Dependent Claim
32 words
A setting device, as claimed in claim 1, in which said last-named means is operable, responsive to the stroke position attaining such nominal value, to inhibit further operation of said driving means.
Claim 5
Dependent Claim
42 words
A setting device, as claimed in claim 1, in which said last-named means is operable, responsive to the stroke position attaining such nominal value, to interrupt the supply of energy to at least one of said checking means and said driving means.
Claim 6
Dependent Claim
33 words
A setting device, as claimed in claim 1, in which said last-named means is operable, responsive to the stroke position attaining such nominal value, to disconnect said checking means from said driving means.
Claim 7
Dependent Claim
25 words
A setting device, as claimed in claim 1, including means operable to insertion of a tool into a tool holder to activate said checking means.
Claim 8
Dependent Claim
83 words
A setting device, as claimed in claim 1, in which a reciprocating tool holder means assumes a predetermined position when a tool is to be exchanged; said checking means comprising a member movable with the tool holder and a stationary member which is stationary relative to the tool holder; one of said members constituting a switch means interrupting the supply of energy to at least one of said checking means and said driving means responsive to the stroke position attaining such nominal value.
Claim 9
Dependent Claim
20 words
A setting device, as claimed in claim 7, in which said movable member comprises a member movable with the tool.
Claim 10
Dependent Claim
47 words
A setting device, as claimed in claim 7, in which said movable member is formed by the tool; said stationary member comprising a photocell operatively associated with a light source providing a light beam in the path of tool movement, and a switch controlled by said photocell.
Claim 11
Dependent Claim
28 words
A setting device, as claimed in claim 7, in which one of said members comprises a switch and the other of said members comprises a switcH operating member.
Claim 12
Dependent Claim
47 words
A setting device, as claimed in claim 7, in which said checking means includes a pneumatic switch; one of said members comprising a blast nozzle and the other of said members comprising a flow control member operable to interrupt discharge of compressed air from said blast nozzle.
Claim 13
Dependent Claim
23 words
A setting device, as claimed in claim 11, in which said flow control member is mounted on the tool for vertical adjustment therealong.
Claim 14
Dependent Claim
27 words
A setting device, as claimed in claim 11, in which said flow control member has at least two spaced noses and is adjustably mounted on said tool.
Claim 15
Dependent Claim
35 words
A setting device, as claimed in claim 13, in which said noses are spaced apart in the stroke direction and said flow control member is mounted on the tool for adjustment longitudinally of the latter.
Claim 16
Dependent Claim
31 words
A setting device, as claimed in claim 13, in which said noses extend in the stroke direction and said flow control member is mounted on said tool for angular adjustment thereon.
Claim 17
Dependent Claim
28 words
A setting device, as claimed in claim 13, in which said flow control member is mounted on the tool in a manner such that it may be inverted.
Claim 18
Dependent Claim
41 words
A setting device, as claimed in claim 1, in which the tool is driven through an eccentric and an associated connecting rod; said driving means being connected to an eccentric bush rotatably mounted in the connecting rod and receiving the eccentric.
Claim 19
Dependent Claim
38 words
A setting device, as claimed in claim 17, in which said driving means comprises an electric motor; a worm rotatable by said electric motor; and a worm gear meshing with said worm and coupled with said eccentric motor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |