초록 ▼

A pneumatic tool as an integral plastic part for blowing, the tool having a connecting nipple with a rigid connecting part for supplying a pressure medium, and a blow head with at least one nozzle opening for targeted release of the pressure medium. A flexibly deformable bending part is attached to

A pneumatic tool as an integral plastic part for blowing, the tool having a connecting nipple with a rigid connecting part for supplying a pressure medium, and a blow head with at least one nozzle opening for targeted release of the pressure medium. A flexibly deformable bending part is attached to the rigid connecting part with the associated connecting nipple. A non-bendable rigid upper part with the blow head is attached to the deformable bending part. Also included is a valve rod for the pneumatic tool, wherein the valve rod is formed as a pulling tool for pulling out and for reinserting an internal seal.

대표청구항 ▼

1. An elongated pneumatic tool for blowing, the tool having an interior and a longitudinal axis and comprising: a connecting nipple with a connecting part for connecting the tool to a supply of a pressure medium;a blow head with at least one nozzle opening for targeted release of the pressure medium

1. An elongated pneumatic tool for blowing, the tool having an interior and a longitudinal axis and comprising: a connecting nipple with a connecting part for connecting the tool to a supply of a pressure medium;a blow head with at least one nozzle opening for targeted release of the pressure medium;a flexibly deformable bending part attached to a rigid connecting part with the associated connecting nipple;a non-bendable, rigid upper part with the blow head attached to said flexibly deformable bending part; anda valve rod having a valve disk thereon in the interior of the pneumatic tool which, by exerting lateral pressure on the bending part, can be brought in a tilt position and thus lifts the valve disk off a seal in the tool interior. 2. The pneumatic tool according to claim 1, wherein the bending, part is arranged near the pressure connection in a lower region of the pneumatic tool. 3. The pneumatic tool according to claim 1, wherein the entire pneumatic tool consists of an integral part made of a relatively rigid elastomeric plastic. 4. The pneumatic tool according to claim 1, wherein the bending part consists of a number of annular ribs which are arranged spaced apart from each other and are aligned parallel to each other, and of annular grooves, wherein the ribs are arranged alternating with the corresponding annular grooves and the annular grooves have a reduced outer diameter with respect to the diameter of the ribs. 5. The pneumatic tool according to claim 1, wherein the bending part consists of a number of annular ribs which are arranged spaced apart from each other and are aligned parallel to each other, and of annular grooves, wherein the ribs are arranged alternating with the corresponding annular grooves and the annular grooves have a reduced outer diameter with respect to the diameter of the ribs. 6. The pneumatic tool according to claim 1, wherein the connecting part, the bending part, and the upper part with the blow head have an identical cross-section, wherein in the region of the bending part, weakening recesses such as grooves, splines or the like are formed. 7. An elongated pneumatic tool for blowing, the tool having an interior and a longitudinal axis and comprising: a connecting nipple with a connecting part for connecting the tool to a supply of a pressure medium;a blow head with at least one nozzle opening for targeted release of the pressure medium, the blow head being formed with a plurality of nozzle openings which are arranged uniformly distributed over a circumference of the blow head and each nozzle opening is arranged in an area of a sector chamber, wherein each sector chamber is bounded by ribs which are radially and uniformly arranged over the blow head circumference, and at a bottom of each sector chamber a nozzle opening is arranged which is aligned in the direction of the longitudinal axis;a flexibly deformable bending part attached to a rigid connecting part with the associated connecting nipple; anda non-bendable, rigid upper part with the blow head attached to said flexibly deformable bending part. 8. The pneumatic tool according to claim 1, wherein the valve rod is formed as a pulling tool for pulling out an internal seal and as an opposite direction motion, the valve rod is formed as a pulling tool for seating an internal seal within the tool. 9. The pneumatic tool according to claim 8, wherein the valve rod is formed from at least two parts and comprises of an upper part and a lower part, the upper part having a first diameter which transitions via an annular limit stop into the lower part having a second, smaller diameter which, in the lower region of the lower part, has a crowned annular shoulder on the outer circumference to which a region with the same diameter as the lower part is attached and subsequently transitions into the valve disk with a diameter larger than the second diameter. 10. A method for assembling and disassembling a seal of an elongated pneumatic tool having an interior and a longitudinal axis, a connecting nipple with a connecting part for connecting the tool to a supply of a pressure medium, a blow head with at least one nozzle opening for targeted release of the pressure medium, a flexibly deformable bending part attached to a rigid connecting part with the associated connecting nipple, a non-bendable, rigid upper part with the blow head attached to said flexibly deformable bending part, and a valve rod having a valve disk thereon in the interior of the pneumatic tool which, live exerting lateral pressure on the bending part, can be brought in a tilt position and thus lifts the valve disk off a seal in the tool interior, the method being accomplished by: striking a connecting part of the pneumatic tool at one end onto a suitable abutment surface, thereby downwardly driving the valve rod by gravity and weight toward the connecting part;sliding a lower part of the valve rod having a crowned annular shoulder thereon completely through the connecting part and through the seal to be replaced;grasping the valve disk of the valve rod and pulling the valve rod downwardly out of the pneumatic tool, the valve rod having an upper annular limit stop whereby the upper annular limit stop abuts against the seal to be replaced; anddriving the seal downwardly out of the connecting part due to a further pulling movement whereby the upper annular limit stop acts on and dislodges the seal.