Soldering gun for one-handed manipulation

Claim 2

A soldering gun for one-handed manipulation with a supply bobbin for soldering wire and means for feeding said wire, said feed means comprising two functionally cooperating assemblies which are resiliently coupled with due regard to the state and properties of the soldering wire by a compression spring generating a thrust that does not exceed the buckling strength of the soldering wire and thereby avoids buckling or bending said wire while it is in course of being heated, one of said two functionally cooperating assemblies of the feed means comprising a spring-loaded finger-operated push-type actuating member provided with a rack meshing with a gear wheel in mesh with a rack on a movable slide which through said interposed compression spring displaces the other functional assembly consisting of a second slide with a longitudinal bore for the reception of the soldering wire from the supply bobbin.

Claim 3

A soldering gun according to claim 1, comprising a spring-loaded manually retractable clamping shoe mounted on the second slide and adapted to grip the soldering wire by bearing down on the same during the forward movement of the second slide, whereas during the return of the second slide the wire is retained by a spring-loaded locking wheel thereby permitting the clamping shoe to slide back on the wire during said return movement.

Claim 4

A soldering gun accorDing to claim 2, wherein the spring-loading locking wheel is located in a stationary part of the gun and presses the wire against the wall of a longitudinal bore in said stationary part through which the wire advances, said locking wheel being mounted in a vertical elongated slot to permit release of the wire when desired.

Claim 5

A soldering gun according to claim 1, comprising a fine steel barrel formed with a collar and accommodating a heating cartridge as well as a first and a second insulating lining member having each an axial bore, the front end of said barrel being closed by a threaded plug into which a soldering bit having also an axial bore is detachably fitted.

Claim 6

A soldering gun according to claim 4, wherein the heating cartridge is replaceably arranged and comprises a ceramic tube provided with a heating coil and an internal fine steel tube provided on its inside with a lining having an axial bore.

Claim 7

A soldering gun according to claim 4, wherein the fine steel barrel is mechanically and electrically detachably connected to a stationary part in the gun by means of a ring nut and electrical contact elements.

Claim 8

A soldering gun according to claim 4, wherein the entry end of the axial bore in the second insulating member at the breech end of the barrel and the entry end of the axial bore through the soldering bit are conically flared.

Claim 9

A soldering gun according to claim 1, comprising a light source above the actuating member.

Claim 10

A soldering gun for one-handed manipulation comprising a. an elongated member having a bore therein, b. a feed member mounted for oscillatory movement to feed a length of soldering wire through said bore in incremental steps, c. releasable clamping means mounted on said feed member, and comprising a pivotably mounted shoe for pressing said wire against said feed member to permit application of feed pressure in said forward direction to said wire during feed strokes by said feed member and for releasing the pressure on said wire permitting said wire to remain stationary during return strokes in a rearward direction by said feed member, and d. means mounted on a stationary part of said gun for frictionally engaging said wire to restrain said wire against movement through said bore during return strokes by said feed member.

Claim 11

A soldering gun for one-handed manipulation comprising a. an elongated member having a bore therein, b. a feed member mounted for oscillatory movement to feed a length of soldering wire through said bore in incremental steps, c. releasable clamping means mounted on said feed member, and comprising a pivotably mounted shoe for pressing said wire against said feed member to permit application of feed pressure in said forward direction to said wire during feed strokes by said feed member and for releasing the pressure on said wire permitting said wire to remain stationary during return strokes in a rearward direction by said feed member, and d. means mounted on a stationary part of said gun for frictionally engaging said wire to restrain said wire against movement through said bore during return strokes by said feed member.

Claim 12

A soldering gun according to claim 9 wherein said feed member includes a bore through which said wire passes.

Claim 13

A soldering gun for one-handed manipulation comprising a. an elongated member having a bore therein, b. a feed member mounted for oscillatory movement to feed a length of soldering wire through said bore in incremental steps, c. said feed member comprising a first side member mounted for oscillatory movement, a second slide member mounted for movement on said first slide member in the same direction as said first slide member, releasable clamping means mounted on said second slide member for clamping said wire during feed strokes in a forward direction by said feed member and releasing said wire during return strokes in a rearward direction by said feed member, and biasing means for pressing said second slide member in said forward direction and being adapted to permit said second slide member to remain stationary during forward movement of said first slide member in the event the forward pressure on said wire during said feed stroke exceeds a predetermined amount whereby buckling or bending of said wire is avoided.

Claim 14

A soldering gun for one-handed manipulation comprising a. an elongated member having a bore therein, b. a feed member mounted for oscillatory movement to feed a length of soldering wire through said bore in incremental steps, c. said feed member comprising a first side member mounted for oscillatory movement, a second slide member mounted for movement on said first slide member in the same direction as said first slide member, releasable clamping means mounted on said second slide member for clamping said wire during feed strokes in a forward direction by said feed member and releasing said wire during return strokes in a rearward direction by said feed member, and biasing means for pressing said second slide member in said forward direction and being adapted to permit said second slide member to remain stationary during forward movement of said first slide member in the event the forward pressure on said wire during said feed stroke exceeds a predetermined amount whereby buckling or bending of said wire is avoided.

Claim 15

A soldering gun according to claim 11 wherein said biasing means comprises a compression spring extending between said first and second slide members.

Claim 16

A soldering gun for one-handed manipulation comprising a. a barrel comprising heating means for softening soldering wire, b. a feed member mounted for oscillatory movement to feed a length of said soldering wire through said barrel in incremental steps, c. releasable means mounted on said feed member for clamping said wire during feed strokes in a forward direction bY said feed member and releasing said wire during return strokes in a rearward direction by said feed member, and d. means mounted on a stationary part of said gun for frictionally engaging said wire to restrain said wire against movement through said bore during return strokes by said feed member.

Claim 17

A soldering gun for one-handed manipulation comprising a. a barrel comprising heating means for softening soldering wire, b. a feed member mounted for oscillatory movement to feed a length of said soldering wire through said barrel in incremental steps, c. releasable means mounted on said feed member for clamping said wire during feed strokes in a forward direction bY said feed member and releasing said wire during return strokes in a rearward direction by said feed member, and d. means mounted on a stationary part of said gun for frictionally engaging said wire to restrain said wire against movement through said bore during return strokes by said feed member.

Claim 18

A soldering gun according to claim 13 wherein said barrel comprises insulating means positioned between said heating means and the end of said barrel adjacent said feed member.

Claim 19

In a soldering gun comprising means for feeding a continuous length of soldering wire, said feeding means comprising a. means for releasably gripping a soldering wire, b. actuating means for moving said gripping means in a forward direction an incremental distance along a path while gripping said wire and for returning said gripping means along said path while said wire is released, and c. biasing means between said actuating and gripping means adapted to bias said gripping means in said forward direction relative to said actuating means by an amount not exceeding the buckling strength of the soldering wire, d. whereby when the force required to move said soldering wire exceeds its buckling strength said biasing means will absorb the force of said actuating means as said actuating means is moved allowing said gripping means to remain stationary to prevent buckling of said wire while maintaining pressure on said wire to feed it in a forward direction.

Claim 20

In a soldering gun comprising means for feeding a continuous length of soldering wire, said feeding means comprising a. means for releasably gripping a soldering wire, b. actuating means for moving said gripping means in a forward direction an incremental distance along a path while gripping said wire and for returning said gripping means along said path while said wire is released, and c. biasing means between said actuating and gripping means adapted to bias said gripping means in said forward direction relative to said actuating means by an amount not exceeding the buckling strength of the soldering wire, d. whereby when the force required to move said soldering wire exceeds its buckling strength said biasing means will absorb the force of said actuating means as said actuating means is moved allowing said gripping means to remain stationary to prevent buckling of said wire while maintaining pressure on said wire to feed it in a forward direction.

Claim 21

A soldering gun for one-handed manipulation comprising a. an elongated member having a bore therein, b. a feed member mounted for oscillatory movement to feed a length of soldering wire through said bore in incremental steps, c. releasable means mounted on said feed member for clamping said wire during feed strokes in a forward direction by said feed member and releasing said wire during return strokes in a rearward direction by said feed member, and d. means mounted on a stationary part of said gun for frictionally engaging said wire to restrain said wire against movement through said bore during return strokes by said feed member, said means for frictionally engaging said wire comprising a support surface for said wire, a wheel and means biasing said wheel to press the cylindrical surface thereof against said wire whereby said wire is frictionally engaged between said wheel and said support surface to permit said wire to be fed forwardly therebetween but prevent movement of said wire during said return stroke.

Claim 22

A soldering gun for one-handed manipulation comprising a. an elongated member having a bore therein, b. a feed member mounted for oscillatory movement to feed a length of soldering wire through said bore in incremental steps, c. releasable means mounted on said feed member for clamping said wire during feed strokes in a forward direction by said feed member and releasing said wire during return strokes in a rearward direction by said feed member, and d. means mounted on a stationary part of said gun for frictionally engaging said wire to restrain said wire against movement through said bore during return strokes by said feed member, said means for frictionally engaging said wire comprising a support surface for said wire, a wheel and means biasing said wheel to press the cylindrical surface thereof against said wire whereby said wire is frictionally engaged between said wheel and said support surface to permit said wire to be fed forwardly therebetween but prevent movement of said wire during said return stroke.

Claim 23

A soldering gun for one-handed manipulation comprising a. an elongated member having a bore therein, b. a feed member mounted for oscillatory movement to feed a length of soldering wire through said bore in incremental steps, c. releasable means mounted on said feed member for clamping said wire during feed strokes in a forward direction by said feed member and releasing said wire during return strokes in a rearward direction by said feed member, d. means mounted on a stationary part of said gun for frictionally engaging said wire to restrain said wire against movement through said bore during return strokes by said feed member, and e. a spring-biased actuating member and rack and pinion means responsive to movement of said actuating member for moving said feed member.

Claim 24

A soldering gun for one-handed manipulation comprising a. an elongated member having a bore therein, b. a feed member mounted for oscillatory movement to feed a length of soldering wire through said bore in incremental steps, c. releasable means mounted on said feed member for clamping said wire during feed strokes in a forward direction by said feed member and releasing said wire during return strokes in a rearward direction by said feed member, d. means mounted on a stationary part of said gun for frictionally engaging said wire to restrain said wire against movement through said bore during return strokes by said feed member, and e. a spring-biased actuating member and rack and pinion means responsive to movement of said actuating member for moving said feed member.