WO2000071299A2 - Tournevis actionne avec systeme automatique de chargement de vis ou de boulons - Google Patents
Tournevis actionne avec systeme automatique de chargement de vis ou de boulons Download PDFInfo
- Publication number
- WO2000071299A2 WO2000071299A2 PCT/FR2000/001423 FR0001423W WO0071299A2 WO 2000071299 A2 WO2000071299 A2 WO 2000071299A2 FR 0001423 W FR0001423 W FR 0001423W WO 0071299 A2 WO0071299 A2 WO 0071299A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screwdriver
- bolts
- screws
- actuated
- automatic loading
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
- B25B23/06—Arrangements for handling screws or nuts for feeding screws or nuts using built-in magazine
Definitions
- This invention relates to a screwdriver actuated with an automatic loading system for screws or bolts.
- a powered screwdriver is a well known tool and is normally used to screw and unscrew various types of screws, bolts or nuts. It can also be used to drill holes.
- the screw or drill bit is held in a tight mandrel, which is rotated by an adjustable torque clutch, adjusted to the needs of the user.
- the adjuster is often placed behind the mandrel in the form of a ring.
- a variable speed electric motor set by an On-Off / speed control switch, normally found on the handle
- fixed speed turns the torque clutch.
- Various types of energy sources exist for powered screwdrivers such as: main current, rechargeable battery and, in some cases, pneumatic or hydraulic motor.
- an actuated screwdriver is often in the form of a pistol, but can be cylindrical.
- the screws, nuts or bolts that can be screwed in by an actuated screwdriver are separate items.
- Screws, bolts or nuts are placed manually on the end cap or at the intended location of the support. Screws, bolts or nuts can also be unscrewed by the operated screwdriver.
- actuated screwdriver is fitted with a mechanism and a different electrical system for each concept, but which remain on the same operating principle: that is to say that the actuated screwdriver is equipped with an automatic loading system for a barrel / guide in its store.
- This magazine contains at least one screw, bolt or nut.
- An adaptation system is also provided to transform a conventional powered screwdriver into a powered screwdriver with an automatic loading system for screws or bolts.
- the mechanical and non-mechanical parts are contained inside or fixed to an envelope, which is formed of various materials.
- a means is provided for the attachment and detachment of the envelope which contains the mechanical parts of the magazine with its barrel / guide and the attachment and detachment of the envelope which contains the mechanical parts of actuation.
- Figure 1 shows the mechanical parts inside the casing of the tool and the mechanical parts of the barrel / guide and its magazine. This is the first concept:
- Figure 2 represents the same thing as Figure 1 except the shape of the magazine:
- Figure 3 shows in section the part (4) and the hidden part (21) of Figure 1:
- Figure 4 shows in section the numbered parts (4), (6), (25), (27) and (21) of Figure 1:
- Figures 5, 5a, 5b and 5c show in section the part (5) with its mechanical parts and its possible variations of Figure 1.
- Figure 6 shows the mechanical parts inside the envelope and the mechanical parts of the barrel / guide and its magazine.
- Figures 7 and 7a show in section the part number (13) of Figure 6.
- Figure 8 shows the mechanical parts inside the envelope and the mechanical parts of the barrel / guide and his store.
- Figure 9 shows in section the part number (1) of Figure 8.
- the screwdriver operated with the automatic loading system for screws and bolts includes a reversible electric motor (1).
- the motor has a bored axis and between it and the guide and drive sleeve (4) there is a space which allows it to pass.
- the motor shaft has at least one bearing (14).
- the engine turns an adjustable torque clutch (2) (indicated packed).
- the torque adjustment ring (3) (indicated with handle) is used to select the torques.
- the torque clutch turns the guide and drive sleeve (4) and the thread bar (6) via the part (21) not visible but detailed in section in Figures 3 and 4.
- This sleeve d drive consists of at least one spring pin (25)
- the thread bar (6) seeps into a socket / nut (5), detailed in Figures 5, 5a, 5b and 5c.
- the sleeve / nut (5) consists of more than one piece.
- the external ring (sleeve) (30) has at least two functions: - 1) it locks the nut and holds the other mechanical parts in place: - 2) it also serves as a sleeve (like a kind of bearing).
- the hook plate (9) also advances. It is pushed by at least one spring (10) and it slides over the hook (1 la). The hook (1 la) is spring loaded. This allows the hook to be forced down and once the hook plate (9) has passed over the hook (11a), it springs.
- the hook plate (9) comes to rest at the end of its guide.
- the guide can be part of the envelope or it can be an independent system.
- the hook plate (9) catches and drives the hook (1 la).
- the hook (l ia) is attached to a tie rod (11) by a hinge. While the hook (l ia) is driven, it descends (guided by a guide not shown). The hook plate (9) passes over it. Before the hook plate is passed over the hook (l ia), the tie rod (11) is driven back with it, due to its attachment by the hinge. While the tie rod (11) is being driven, it operates another lever (1 lb), which is attached to its end. This lever actuates another lever (16) which is spring loaded inside the magazine (20). The lever (16) inside the magazine (20) drives the door (16a) which retains the screw.
- the door (16a) has a slot (not shown), attached to the lever (16), to allow the screw to pass through the barrel / guide.
- the screw is pushed into the barrel by the spring plate (17) and held by a magnet (8).
- the magnet holds the center line of the screw in place, parallel to the wall of the barrel. This facilitates centralization of the screw and allows the bit to fit well in the groove of the screw.
- the magnet shown is spring loaded and is pushed into its housing by the screw as the screw advances.
- the thread bar (6) holds the magnet in its housing until it comes back.
- the synchronization of this process is done in such a way that before the hook plate (9) has passed over the hook (1 la) the screw is in the barrel / guide. With a spring in the system, the hook (1 la), the tie rod (11) and the levers (1 lb), (16) and the door (16a) are back in their initial position.
- the hook plate (9) supports the stop and change of direction switch (12) stopping the engine.
- Figure 2 is identical to Figure 1 in its functions, except the shape of the store which is different. This should indicate that it is possible to change the shape of the store for known or unknown reasons.
- the motor which is shown in Figures 1 and 2, can be changed or replaced by a pneumatic or hydraulic motor for use in a mass production plant or for other known or unknown reasons.
- Figure 6 shows that the mechanism is of the same principle as Figure 1, the guide and drive sleeve, the sleeve / nut, the barrel and magazine reloading system, the tie rod, the hook, the hook plate and its guides, remain the same. The difference is with the drive sleeve (13).
- the electric motor (1), the torque clutch (2) and the torque adjuster (3) are all parts found in most screwdrivers already operated in production or already on the market.
- a pulley (21) replaces the mandrel.
- a belt (22) actuates the thread bar via the drive bush (5).
- Figures 7 and 7a show in detail the control principle.
- the guide and drive bush (3) has a thicker wall, larger in diameter at some point. The larger diameter slides into the pulley (2).
- a means of preventing the guide and drive sleeve from slipping is provided.
- figure (7a) at least one keyway is shown but a method with similar results such as a splined axis can be used.
- the same principle for turning the thread bar (4) is used (as seen in Figures 3 and 4 where at least one fixed, removable or spring-loaded pin is used).
- the guide and drive bush has at least one bearing (14).
- the drive sleeve has at least one bearing (5) and is held with at least one circlip (6) (another suitable means of holding the bearing and sleeve together can also be used).
- a belt (22) drives the drive sleeve (2).
- a chain can be used for known or unknown reasons. This allows the magazine loading mechanism to pass between the two sides of the belt or chain. For this reason, the external dimensions of the actuated screwdriver are narrower and shorter, therefore more accessible to narrower working areas.
- Figure 8 shows in principle the same type of mechanical mechanism for reloading a magazine screw in its barrel.
- Figure 8 also shows the electric motor, the torque clutch and the standard torque adjuster shown in Figure 6. This type can be found in most screwdrivers operated in production or on the market.
- FIG. 9 shows in section the mechanism (1) of Figure 8.
- the guide and drive sleeve are in three parts (2), (3), and (4).
- the part (4) has a collar, it slides in the drive sleeve (6) with a non-slip mechanical connection means such as grooves or a keyway.
- the sleeve (6) (which replaced the mandrel) rotates the part (4), which in turn rotates the part (3) by a non-slip mechanical connection such as grooves or a keyway.
- the part (3) turns the thread bar (9) using at least one fixed or removable or spring-loaded pin.
- the part (3) rotates the part (2) at the same time by means of a non-slip mechanical connection such as grooves or a keyway.
- the thread bar (9) turns and enters the sleeve / nut as described in the previous paragraphs.
- the thread bar (9) advances as well as the part (3) because it is pushed by the spring (5). It slides against the external walls of the parts (4) and (2).
- the external sleeve (3) comes to rest against the collar of the part (2) which rotate together.
- the part (3) continues to rotate the thread bar (9).
- the thread bar 9 continues to advance until the screw is positioned in the desired location.
- a loading system will be provided for hexagonal bolts and for "Allen" screws / bolts which is not shown on the plans or figures.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU49315/00A AU4931500A (en) | 1999-05-25 | 2000-05-25 | Motorised screwdriver with an automatic system for loading screws or bolts |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR99/06611 | 1999-05-25 | ||
FR9906611A FR2794047A1 (fr) | 1999-05-25 | 1999-05-25 | Tournevis actionne avec un systeme automatique de chargement pour des vis ou des boulons |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000071299A2 true WO2000071299A2 (fr) | 2000-11-30 |
WO2000071299A3 WO2000071299A3 (fr) | 2001-04-19 |
Family
ID=9545988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/001423 WO2000071299A2 (fr) | 1999-05-25 | 2000-05-25 | Tournevis actionne avec systeme automatique de chargement de vis ou de boulons |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU4931500A (fr) |
FR (1) | FR2794047A1 (fr) |
WO (1) | WO2000071299A2 (fr) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1161818B (de) * | 1958-12-02 | 1964-01-23 | Aeg | Elektromotorisch angetriebener Handschraubenzieher |
EP0088836A1 (fr) * | 1982-03-11 | 1983-09-21 | Katsuyuki Totsu | Tournevis électrique |
EP0131851A1 (fr) * | 1983-07-15 | 1985-01-23 | EJOT Eberhard Jaeger GmbH & Co. KG | Appareil pour serrer ou desserer des vis |
EP0284755A1 (fr) * | 1987-03-17 | 1988-10-05 | Robert Bosch Gmbh | Dispositif de vissage |
US5144870A (en) * | 1991-10-18 | 1992-09-08 | Nick Edward V | Apparatus for selectively installing fasteners |
DE29502646U1 (de) * | 1995-02-17 | 1995-03-30 | Fanchang, We Chuan, Feng Yuan, Taichung | Steuermechanismus für die Drehzahl eines elektrischen Werkzeuges |
DE29811340U1 (de) * | 1998-06-25 | 1998-08-20 | Atlas Copco Electric Tools GmbH, 71364 Winnenden | Handgeführtes Arbeitswerkzeug |
-
1999
- 1999-05-25 FR FR9906611A patent/FR2794047A1/fr not_active Withdrawn
-
2000
- 2000-05-25 AU AU49315/00A patent/AU4931500A/en not_active Abandoned
- 2000-05-25 WO PCT/FR2000/001423 patent/WO2000071299A2/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1161818B (de) * | 1958-12-02 | 1964-01-23 | Aeg | Elektromotorisch angetriebener Handschraubenzieher |
EP0088836A1 (fr) * | 1982-03-11 | 1983-09-21 | Katsuyuki Totsu | Tournevis électrique |
EP0131851A1 (fr) * | 1983-07-15 | 1985-01-23 | EJOT Eberhard Jaeger GmbH & Co. KG | Appareil pour serrer ou desserer des vis |
EP0284755A1 (fr) * | 1987-03-17 | 1988-10-05 | Robert Bosch Gmbh | Dispositif de vissage |
US5144870A (en) * | 1991-10-18 | 1992-09-08 | Nick Edward V | Apparatus for selectively installing fasteners |
DE29502646U1 (de) * | 1995-02-17 | 1995-03-30 | Fanchang, We Chuan, Feng Yuan, Taichung | Steuermechanismus für die Drehzahl eines elektrischen Werkzeuges |
DE29811340U1 (de) * | 1998-06-25 | 1998-08-20 | Atlas Copco Electric Tools GmbH, 71364 Winnenden | Handgeführtes Arbeitswerkzeug |
Also Published As
Publication number | Publication date |
---|---|
FR2794047A1 (fr) | 2000-12-01 |
AU4931500A (en) | 2000-12-12 |
WO2000071299A3 (fr) | 2001-04-19 |
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