Device for transmitting energy to a fastener

Patent metadata

Field	Value
Publication number	US-9782881-B2
Application number	US-88426010-A
Country	US
Kind code	B2
Filing date	Sep 17, 2010
Priority date	Sep 18, 2009
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

The invention relates to a device for transmitting energy to a fastener, with a reaction chamber, an energy-transmission element that can move in a fastening direction for transmitting energy released in the reaction chamber to a fastener, a first supply channel opening into the reaction chamber for feeding a first reagent to the reaction chamber, wherein the first supply channel comprises a feeder device for feeding the first reagent into the reaction chamber and a controllable closing device for a time-wise closing of the first supply channel.

First claim

The invention claimed is:

1. A device for transmitting energy to a fastener, comprising a reaction chamber, an energy-transmission element that can move to transmit energy released in the reaction chamber to a fastener, a first supply channel opening into the reaction chamber for feeding a first reagent to the reaction chamber, wherein the first supply channel comprises a feeder device for feeding the first reagent into the reaction chamber and for compressing the first reagent in the reaction chamber; a drive device for the feeder device, and a closing device for closing the first supply channel, wherein the closing device is arranged downstream of the feeder device and upstream of the reaction chamber, and wherein the closing device can be opened and closed, and a control device connected to the closing device for opening and closing the closing device according to specified conditions, wherein the control device is connected to the drive device for controlling the feeder device.

2. The device according to claim 1 , wherein the reaction chamber has an initialization device arranged in the reaction chamber for initializing a reaction, wherein the initialization device is connected to the control device.

3. The device according to claim 2 , wherein the control device comprises a control mechanism that triggers the initialization of a reaction in the reaction chamber by the initialization device under the condition that the closing device is closed.

4. The device according to claim 1 , further comprising position-determination means for determining the position of the energy-transmission element, wherein the position-determination means are connected to the control device and wherein the control device comprises a control mechanism that triggers the opening of the closing device or the initialization of a reaction in the reaction chamber by means of the initialization device under the condition that the energy-transmission element is positioned in a starting position.

5. The device according to claim 1 , further comprising state-determination means for determining a state variable in the reaction chamber, wherein the state-determination means are connected to the control device.

6. The device according to claim 5 , wherein the control device comprises a control mechanism that triggers an opening or closing of the closing device or the initialization of a reaction in the reaction chamber by means of an initialization device under the condition that a state variable in the reaction chamber has reached or exceeded or fallen below a specified value.

7. The device according to claim 1 , wherein the feeder and/or drive device is connected to the control device and wherein the control device comprises a control mechanism that triggers the opening of the closing device under the condition that the feeder device is in operation.

8. The device according to claim 1 , wherein the feeder and/or drive device is connected to the control device, wherein the control device comprises a control mechanism that triggers a shutdown of the feeder or drive device under the condition that the feeder device has been in operation for a specified duration.

9. The device according to claim 1 , further comprising a second supply channel for feeding a second reagent to the reaction chamber.

10. The device according to claim 9 , wherein the second supply channel opens into the first supply channel upstream of the closing device viewed in the direction of flow of the first reagent.

11. The device according claim 9 , wherein the second supply channel opens into the first supply channel downstream of the closing device viewed in the direction of flow of the first reagent.

12. The device according to claim 9 , wherein the first supply channel and/or the second supply channel has an inlet opening for surrounding air.

13. The device according to claim 9 , further comprising a receptacle for a reagent reservoir adjacent to the first supply channel and/or to the second supply channel.

14. The device according to claim 2 , further comprising state-determination means for determining a state variable in the reaction chamber, wherein the state-determination means are connected to the control device.

15. The device according to claim 14 , wherein the control device comprises a control mechanism that triggers an opening or closing of the closing device or the initialization of a reaction in the reaction chamber by means of the initialization device under the condition that a state variable in the reaction chamber has reached or exceeded or fallen below a specified value.

16. The device according to claim 3 , further comprising position-determination means for determining the position of the energy-transmission element, wherein the position-determination means are connected to the control device and wherein the control device comprises a control mechanism that triggers the opening of the closing device or the initialization of a reaction in the reaction chamber by means of the initialization device under the condition that the energy-transmission element is positioned in a starting position.

17. The device according to claim 4 , further comprising state-determination means for determining a state variable in the reaction chamber, wherein the state-determination means are connected to the control device.

18. The device according to claim 17 , wherein the control device comprises a control mechanism that triggers an opening or closing of the closing device or the initialization of a reaction in the reaction chamber by means of the initialization device under the condition that a state variable in the reaction chamber has reached or exceeded or fallen below a specified value.

19. The device according to claim 1 , wherein the closing device comprises a valve that can be activated hydraulically, pneumatically, electrically, electromotively, or electromagnetically.

Assignees

• Wolf Iwan
• Zahner Mario
• Erhardt Rolf
• Hilti Ag

Inventors

• Wolf Iwan
• Zahner Mario
• Erhardt Rolf

Classifications

• B25C1/08 Primary

  operated by combustion pressure · CPC title