US3338496A - Stud driving tool with trigger-tilt breech - Google Patents
Stud driving tool with trigger-tilt breech Download PDFInfo
- Publication number
- US3338496A US3338496A US449833A US44983365A US3338496A US 3338496 A US3338496 A US 3338496A US 449833 A US449833 A US 449833A US 44983365 A US44983365 A US 44983365A US 3338496 A US3338496 A US 3338496A
- Authority
- US
- United States
- Prior art keywords
- handle
- cartridge
- breech
- tool
- trigger
- 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 - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
- B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
- B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
- B25C1/143—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil trigger operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
- B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
- B25C1/105—Cartridge ejecting mechanisms and latch mechanisms
Definitions
- This invention relates to a tool for driving studs or the like into hard receiving materials, such as concrete and iron, by means of a thrust piston driven by a propellant gas charge expanding in a chamber disposed at an angle, preferably at substantially a right angle, to a cartridge chamber, and more particularly to a handle and a trigger mechanism for such a tool.
- the breech may be arranged in a handle which is mounted to be slidable in a direction parellel lto the longitudinal axis of the device.
- a handle which is mounted to be slidable in a direction parellel lto the longitudinal axis of the device.
- a tool having a breech, or closure, -for the cartridge chamber installed in, and as part of, a handle which is pivotally arranged so that it can be tilted on a supporting member of the tool.
- the swingability of the handle carrying the breech provides the advantage that no lateral displacement of the breech, which increases the size of the tool, is required.
- the handle is easily operated with minimum expenditure of force, for instance, by merely swinging it open after releasing a snap breech lock, e.g., by a sharp blow against the handle, or swinging it closed to trip automatically the breech lock.
- a snap breech lock e.g., by a sharp blow against the handle, or swinging it closed to trip automatically the breech lock.
- the cartridge chamber breech is preferably locked by a snap breech lock to the supporting piece when the -tool is in tiring position.
- the handle has a pivoted, spring-loaded lever which upon closing of the device engages a projection on the main supporting member of the tool against the action of the spring.
- an abutment on the trigger engages the lever to prevent it positively from pivoting and unlocking the handle carrying the breech.
- the automatically interlocking snap breech lock can be employed in a simple manner without additional action by the operator during the firing process to preclude opening of the breech when the tool is tired.
- no manual unlocking of the'snap lock is necessary because the interlock is opened lCe in a positive manner by releasing the trigger. A sharp blow to the handle releases it.
- the handle has a cartridge ejector actuated by swinging open the handle.
- the ejector is a lever swingably supported by a pin on the supporting member. It engages part of the rim of a cartridge in the cartridge chamber and is arranged with the handle so that during the opening movement of the handle, a nipping member imparts a swinging motion to the ejector lever to extract the cartridge from the cartridge chamber.
- a nipping member imparts a swinging motion to the ejector lever to extract the cartridge from the cartridge chamber.
- FIGURE l is an elevation partly in section and shows a stud driving tool, of the type described, in its inoperative condition;
- FIGURE 1A is a perspective showing important elements of the tool and their relationship to one another;
- FIGURE 2 shows the tool of FIGURE l in firing position with the breech locked
- FIGURE 3 shows the tool of FIGURE l during opening of the handle
- FIGURE 4 shows a detail of the cartridge ejector of the tool during closing of the handle.
- FIGURES 1 and 1A show a tool having a supporting member 1 on which a removably fastened tube 2 serves as a housing.
- the tube 2 has a slot in one side whose edges 2a pass slidably along grooves 1a on each side of the supporting member 1 to mount the tube on the supporting member.
- the supporting member 1 has a bearing pin 3 by which a handle, designated generally by the numeral 4, is pivotally secured.
- a sleeve 5 within the housing 2 is fastened to the supporting member 1 and serves as a propellent gas chamber.
- the sleeve 5 preferably is an integral part of the member 1.
- the guide 7 is carried by a collar 9 which projects :from and is slidably mounted in the housing Z.
- a spring 10 within the housing 2 biasses the collar 9 and guide 7 away from the sleeve 5.
- a thrust piston 8 in the collar 9 has one end slidably supported in the guide 7 and the other end adapted to enter srlidably the sleeve 5 when the tool is in the tiring position, Le., as sho-wn in FIGURE 2, by telescoping the guide 7 and collar 9 into the housing 2.
- a recoil damping mass 11 s-lidably mounted in the housing 2 and having a pistonlike end 11a adapted to extend into the sleeve 5.
- a spring 12 between the mass 11 and a housing ⁇ closure cover 13 biases the -mass 11 toward the sleeve 5. Details and the operation of these elements are described a'nd illustrated more 'fu'lly in copending application Ser. No. 448,076 led Apr. 14, 1965.
- the handle 4 has a solid supporting Ipart 15, generally shaped like a hand grip, the top of which is contiguous to the support member 1 lorf the tool and fonrns the breech 'for the cartridge chamber 6.
- the handle supporting part 15 is pivoteid on the pin 3 and carries a pin 16 on which a lever 17 is swingably mounted.
- the lever 17 has two arms 17a and 17b.
- a spring around the pin 16 applies a counter-clockwise force to the lever 17.
- the arm 17a cooperates with a nose 19 projecting from the supporting member 1 to form a snap breech lock under the action or the spring 18 which presses the arm 17a against the nose 19
- a trigger 26 in the front olf the handle 4 is swingably mounted on a pin 21 carried by the handle supporting part 15.
- the trigger 20 in turn, has a pin 22 on which two levers 23 and 26 are pivotally supported.
- One lever 23 is
- the lever 23 ⁇ bears against a flange 25a of the firing pin 2,5 'when the trigger is pulled back Iand pushes the pin 25 downwardly until the lever 23 slides oft' the flange, releasing the pin 25.
- the other arm 26 cooperates with a recess portion 11d in the slot 11C in the recoil damping mass 11 to act as a safety.
- the arm 26 moves upwardly through an opening 1b in the supporting member 1.
- FIGURE 2 illustrates those elements in the firing position, and the firing pin about to be released by the lever 23'.
- the upper edge 20a of the trigger 20 abuts under the arms 17h of the breech lock lever 17.
- the edge 20a prevents downward movement olf the arm 17b which would disengage the other end 17a or' the lever 17 from the nose 19 to open the llock.
- the breech is positively precluded from opening during firing orf the tool by an interlocking of the trigger 20 with the breech lock.
- a cartridge ejector 31 inthe form of an L-shaped llever having the arms 31a and 31b is mounted on the supporting member 1 of the tool by a pin 30.
- the arm 31a debouohes into the cartridge chamber 6 when the handle 4 is yclosed and rforms a portion of the mouth of the cartridge lchamber 6.
- the end of the arm 31a is shaped to grasp: partially the rim of a cartridge inserted in the chamber.
- the ejector 31 is ⁇ actuated during opening of the handle 4 by a cam 35 pivoted on a 4pin 33 ⁇ projecting from the handle support part 15.
- a spring 34 applies a counter-clockwise force to the cam 35 to hold it in the position shown in FIGURES l, 2 and 3, which position is limited by a stop 28 in a section of the wall 2.8 ott the handle support part 15.
- the cam 35 engages the ejectors hook-like arm 31h in the cams path ot movement and turns the ejector 31 to remove the cartridge 6a from the chamber v6, as shown in FIGURE 3.
- the cam 35 is turned clockwise against the spring 34 by the arm 31b of the ejector 31 to permit passage of the cam 35 thereby.
- a stud ydriving tool comprising a support member and a housing, means for driving a stud carried by said support member comprising a thrust piston and la propellent gas chamber, a cartridge chamber in said support member opening into said propellent gas chamber, a handle pivotally attached to said support member, a breech 'for said cartridge chamber carried by said handle, said breech adapted to cilose said cartridge chamber when said handle is in a first position and adapted to be moved away from said cartridge chamber by swinging said handle about its pivot away from said first position, and firing means carried by said handle for firing a cartridge in said cartridge chamber when said handle is in said first position.
- a stud :driving tool as defined in claim 1 further comprising a nose projecting from said support member and la lever pivoted on said handle, said lever having an arm Iadapted to engage said nose when said handle is in said first position to lock said handle in that position.
- a stud driving tool as defined in claim 3 wlherein said lever has a second arm extending therefrom and said firing means includes a trigger carried by said handle adapted to engage said second arm when being pulled to fire said tool to prevent pivoting of said lever, thereby positively interlocking said first lever arm against said nose.
- a stud driving tool as defined in claim 1 [further comprising a cartridge ejector means movably mounted on said support member, and ejector actuating means and carried on said handle and adapted to actuate said cartridge ejector means when said handle is swung away lfrom said rst position.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA0045865 | 1964-04-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3338496A true US3338496A (en) | 1967-08-29 |
Family
ID=6934957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US449833A Expired - Lifetime US3338496A (en) | 1964-04-24 | 1965-04-21 | Stud driving tool with trigger-tilt breech |
Country Status (8)
Country | Link |
---|---|
US (1) | US3338496A (xx) |
AT (1) | AT265997B (xx) |
BE (1) | BE662565A (xx) |
CH (1) | CH427692A (xx) |
DE (1) | DE1250377B (xx) |
ES (1) | ES311824A1 (xx) |
GB (1) | GB1057618A (xx) |
NL (1) | NL6505105A (xx) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3482753A (en) * | 1966-09-09 | 1969-12-09 | Hilti Ag | Explosive driven stud setting apparatus for use in hard-to-reach places |
US4074844A (en) * | 1977-01-17 | 1978-02-21 | Olin Corporation | Gravity feed hot top tool |
-
0
- DE DENDAT1250377D patent/DE1250377B/de active Pending
-
1965
- 1965-03-15 CH CH355465A patent/CH427692A/de unknown
- 1965-04-14 ES ES0311824A patent/ES311824A1/es not_active Expired
- 1965-04-14 AT AT344465A patent/AT265997B/de active
- 1965-04-15 BE BE662565D patent/BE662565A/xx unknown
- 1965-04-20 GB GB16506/65A patent/GB1057618A/en not_active Expired
- 1965-04-21 US US449833A patent/US3338496A/en not_active Expired - Lifetime
- 1965-04-22 NL NL6505105A patent/NL6505105A/xx unknown
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3482753A (en) * | 1966-09-09 | 1969-12-09 | Hilti Ag | Explosive driven stud setting apparatus for use in hard-to-reach places |
US4074844A (en) * | 1977-01-17 | 1978-02-21 | Olin Corporation | Gravity feed hot top tool |
Also Published As
Publication number | Publication date |
---|---|
BE662565A (xx) | 1965-08-02 |
NL6505105A (xx) | 1965-10-25 |
CH427692A (de) | 1966-12-31 |
AT265997B (de) | 1968-10-25 |
GB1057618A (en) | 1967-02-01 |
DE1250377B (de) | 1967-09-14 |
ES311824A1 (es) | 1965-10-01 |
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KR840003765A (ko) | 자동소화기 |