DE10033498B4 - Powder-powered setting tool - Google Patents

Powder-powered setting tool

Info

Publication number
DE10033498B4
DE10033498B4 DE2000133498 DE10033498A DE10033498B4 DE 10033498 B4 DE10033498 B4 DE 10033498B4 DE 2000133498 DE2000133498 DE 2000133498 DE 10033498 A DE10033498 A DE 10033498A DE 10033498 B4 DE10033498 B4 DE 10033498B4
Authority
DE
Germany
Prior art keywords
support surface
setting tool
recess
powder
driving piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE2000133498
Other languages
German (de)
Other versions
DE10033498A1 (en
Inventor
Olaf Kersten
Original Assignee
Kersten, Olaf, Dr.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kersten, Olaf, Dr. filed Critical Kersten, Olaf, Dr.
Priority to DE2000133498 priority Critical patent/DE10033498B4/en
Publication of DE10033498A1 publication Critical patent/DE10033498A1/en
Application granted granted Critical
Publication of DE10033498B4 publication Critical patent/DE10033498B4/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25CHAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00Hand-held nailing tools; Nail feeding devices
    • B25C1/08Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/14Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil

Abstract

Powder-powered setting tool with a bolt guide (2) which has a through bore (8) for an axially displaceable driving piston (3), radially open recesses (9) for the through bore (8) are provided, in which brake balls (6) spring-loaded between two axial Stops (10, 11) with maximum and minimum spring loading along an acute-angled support surface (12) are arranged to act towards the driving piston (3), characterized in that at least one recess (9) in the pin guide (2) counteracts at an acute angle the driving direction is arranged, the resiliently supported support surface (12) for the brake ball (6) being received by the recess (9).

Description

  • The invention relates to a powder powered setting tool according to the preamble of claim 1.
  • In known powder-powered setting tools the powder power is over one
  • Driving piston on one to be placed Transfer fastener. The one in a piston guide The driving piston is driven by the powder force from an ignition ready position moved forward in driving direction. After the setting process the driving piston must be in the ready position again pushed back become. Holding means ensure that the driving piston the ignition ready position maintains, until the holding force is exceeded by the powder force.
  • From the EP 0 346 275 B1 and EP 0 818 281 A2 are known holding means for the driving piston, the driving piston of which is braked by a ball brake during advance, but which does not impair the return of the driving piston to its starting position. For this purpose, axially displaceable brake balls are mounted in a conical guide, which are spring-loaded, in a recess which is open radially towards the driving piston.
  • A disadvantage of this holding means is that the shock-like vibrations that occur in powder-powered setting tools arise, are not sufficiently damped due to the design. This can the brake balls move indefinitely in the recesses, so that there is jamming between the piston skirt and brake balls can.
  • The invention is based on the object setting tool to create where the repatriation of the Driving piston is safely achieved under the action of the ball brake.
  • According to the invention the object is achieved in that at least with a generic setting tool a recess in the bolt guide is arranged at an acute angle against the driving direction, the spring-mounted support surface for the brake ball is received by the recess.
  • Further refinements of the invention are to the following description and the dependent claims remove.
  • The invention is illustrated below one in the attached Illustrated embodiment shown explained in more detail.
  • 1 shows a section of a powder-operated bolt gun in axial section.
  • 2 shows the bolt guide in three-dimensional axial section.
  • The powder-operated setting tool shown in detail comprises a housing 1 , the mouth side with a sleeve-shaped bolt guide 2 is provided for receiving bolts to be set.
  • Driving the bolts into the through hole 8th the bolt guide 2 are used by means of a driving piston 3 which is received by a piston guide (not shown). The bolt guide 2 can be connected to the piston guide.
  • The bolt guide contains one or more radially open recesses 9 to the through hole 8th that are at an acute angle to the through hole 8th be introduced. The radially open recesses 9 to the through hole 8th contain a narrowed area so that shoulders 13 ( 2 ) are formed to prevent the brake balls from falling through 6 to prevent. The attack 11 of the stopper 7 and the stop 10 limit the axial path of the brake balls 6 , Opposite the shoulders 14 are the spring elements 4 who have a tread 5 included in the recesses 9 arranged. The spring elements 4 with the running areas 5 are from the stoppers 7 and the attack 10 limited.
  • The brake balls 6 are freely movable in the recesses 6 and protrude into the through hole 8th into it when the driving piston 3 does not engage in the ball freewheel in its starting position. When advancing the driving piston 5 become the brake balls 6 taken axially in the direction of the mouth and radially outward against the support surface 12 the running areas 5 pressed, causing the feathers 4 be excited and generate a braking effect. Due to the acute-angled arrangement of the recess 9 can the brake balls 6 when the driving piston returns 3 easy on the support surface 12 unroll and get out of the span of the springs 4 , so that the braking effect is released.

Claims (3)

  1. Powder-powered setting tool with a bolt guide ( 2 ) that have a through hole ( 8th ) for an axially displaceable driving piston ( 3 ), with radially open recesses ( 9 ) to the through hole ( 8th ) are provided, in which brake balls ( 6 ) spring loaded between two axial stops ( 10 . 11 ) with maximum and minimum spring loading along an acute-angled support surface ( 12 ) to the driving piston ( 3 ) are arranged to act, characterized in that that at least one recess ( 9 ) in the bolt guide ( 2 ) is arranged at an acute angle against the driving direction, the resiliently supported support surface ( 12 ) for the brake ball ( 6 ) from the recess ( 9 ) is recorded.
  2. Setting tool according to claim 1, characterized in that the spring element ( 4 ) on the support surface ( 12 ) acts, preferably consists of an elastomer body.
  3. Setting tool according to claim 1 to 2, characterized in that the resiliently supported support surface ( 12 ) positively by a cap ( 7 ), which closes the recess opening located opposite the driving direction, is held.
DE2000133498 2000-07-10 2000-07-10 Powder-powered setting tool Expired - Fee Related DE10033498B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000133498 DE10033498B4 (en) 2000-07-10 2000-07-10 Powder-powered setting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000133498 DE10033498B4 (en) 2000-07-10 2000-07-10 Powder-powered setting tool

Publications (2)

Publication Number Publication Date
DE10033498A1 DE10033498A1 (en) 2002-01-31
DE10033498B4 true DE10033498B4 (en) 2004-02-12

Family

ID=7648431

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000133498 Expired - Fee Related DE10033498B4 (en) 2000-07-10 2000-07-10 Powder-powered setting tool

Country Status (1)

Country Link
DE (1) DE10033498B4 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346275B1 (en) * 1988-06-10 1992-01-29 HILTI Aktiengesellschaft Powder-actuated fastening tool
EP0818281A2 (en) * 1996-07-09 1998-01-14 Beto-Tornado GmbH Powder-actuated bolt driving tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346275B1 (en) * 1988-06-10 1992-01-29 HILTI Aktiengesellschaft Powder-actuated fastening tool
EP0818281A2 (en) * 1996-07-09 1998-01-14 Beto-Tornado GmbH Powder-actuated bolt driving tool

Also Published As

Publication number Publication date
DE10033498A1 (en) 2002-01-31

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee