Vehicular work machine and method for vehicular work machine water control

Patent metadata

Field	Value
Publication number	US-11542818-B2
Application number	US-201816477296-A
Country	US
Kind code	B2
Filing date	Jan 3, 2018
Priority date	Jan 11, 2017
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

The present disclosure relates to a vehicular work machine (10) that is adapted for handling at least two different interchangeable tools (4). The machine (10) also comprises a user control device (11) and a water supply arrangement (31) that is adapted to distribute water for retaining dust that is created when a tool (4) is used, The water supply arrangement (31) comprises a controllable valve (24) that is arranged to control the flow of the water that is distributed via at least one nozzle (29). The user control device (11) is arranged for selection of a desired tool, where at least one selectable tool is associated with a certain predefined water setting. Each water setting relates to a certain relative flow of distributed water during a certain time that is related to the time said tool (4) is chosen and performing a certain work procedure, and/or to the time said tool (4) is chosen and ready to perform a certain work procedure.

First claim

The invention claimed is:

1. A vehicular work machine comprising a controllable arm arrangement that in turn comprises at least two articulated arm parts and is adapted for handling at least two different interchangeable tools,
wherein the vehicular work machine also comprises a user control device and a water supply arrangement that is adapted to distribute water with the purpose of retaining dust that is created by use of a tool of the at least two different interchangeable tools,
wherein the water supply arrangement comprises a controllable valve that is arranged to control the flow of the water that is distributed via at least one nozzle,
wherein the user control device is arranged for selection of a desired tool of the at least two different interchangeable tools,
wherein at least one selectable tool of the at least two different interchangeable tools is associated with an initial water setting,
wherein each initial water setting defines parameters for activating an initial relative flow of distributed water,
wherein the user control device is configured to allow an operator to change the respective initial water settings for the at least two different interchangeable tools, and to save new water settings for the at least two different interchangeable tools, each new water setting defines new parameters for activating a new relative flow of distributed water,
wherein each initial water setting and each new water setting comprises a time period for activating the relative flow of distributed water without direct operator interaction,
wherein the time period corresponds to an amount of time a tool of the at least two different interchangeable tools is chosen and performing a certain work procedure, and/or to an amount of time said tool of the at least two different interchangeable tools is chosen and ready to perform the certain work procedure, and
wherein the initial relative flow of distributed water and the new relative flow of distributed water corresponds to the controllable valve being at least open or closed.

2. A vehicular work machine according to claim 1 , wherein the user control device is arranged for inputting and saving at least two different water settings for each of the tools of the at least two different interchangeable tools.

3. A vehicular work machine according to claim 1 , wherein said nozzle is positioned on said tool of the at least two different interchangeable tools.

4. A vehicular work machine according to claim 1 , wherein, for a certain water setting, there is a relative flow of distributed water during a certain extension time after a certain stop time, after which stop time the work procedure is no longer being performed.

5. A vehicular work machine according to claim 2 , wherein said water settings include at least two of:
“water on”, where the controllable valve is in an open state when the tool of the at least two different interchangeable tools is chosen and said tool of the at least two different interchangeable tools is ready for work, or in work;
“water off”, where the controllable valve always is in a closed state;
“water auto close”, where the controllable valve is in the open state only when an openable and closable tool of the at least two different interchangeable tools is controlled to close, otherwise in the closed state;
“water auto open/close”, where the controllable valve is in the open state both when the openable and closable tool of the at least two different interchangeable tools is controlled to open and when the openable and closable tool of the at least two different interchangeable tools is controlled to close, otherwise in the closed state;
“water auto”, where the controllable valve is in the open state only when the tool of the at least two different interchangeable tools is activated, otherwise in the closed state; and
“nozzle setting”, where the nozzle is controlled such that different spray configurations are obtained.

6. A vehicular work machine according to claim 5 , wherein, for the water settings “water auto close”, “water auto open/close” and “water auto”, the user control device is arranged to input and save at least two different extension times, where an extension time corresponds to a time period during which the controllable valve is maintained in the open state after that the tool of the at least two different interchangeable tools has been de-activated.

7. A vehicular work machine comprising a controllable arm arrangement that in turn comprises at least two articulated arm parts and is adapted for handling at least two different interchangeable tools,
wherein the vehicular work machine also comprises a user control device and a water supply arrangement that is adapted to distribute water with the purpose of retaining dust that is created by use of a tool of the at least two different interchangeable tools,
wherein the water supply arrangement comprises a pump in operative communication with a controllable valve that is arranged to control the flow of the water that is distributed via at least one nozzle, the controllable valve is controllable from a closed state, to an open state, and between one or more different states between the open state and the closed state,
wherein the user control device is arranged for selection of a desired tool of the at least two different interchangeable tools,
wherein at least one selectable tool of the at least two different interchangeable tools is associated with a certain initial water setting,
wherein each initial water setting defines parameters for activating a relative flow of distributed water,
wherein each initial water setting is applied based on the selection of a desired tool of the at least two interchangeable tools,
wherein each initial water setting comprises a time period for activating the relative flow of distributed water without direct operator interaction,
wherein the time period corresponds to an amount of time a tool of the at least two different interchangeable tools is chosen and performing a certain work procedure, and/or to an amount of time said tool of the at least two different interchangeable tools is chosen and ready to perform the certain work procedure, and
wherein said certain relative flow of distributed water corresponds to the controllable valve being at the closed state, the open state, or between the open state and the closed state.

8. A vehicular work machine according claim 7 , wherein the at least one nozzle is a controllable nozzle controlled such that different spray configurations are obtained.

Assignees

• Husqvarna Ab

Inventors

• Theander Fredrik
• Olsson Tommy

Classifications

• E02F9/2004

  Control mechanisms, e.g. control levers (control levers per se G05G) · CPC title

• E02F3/966

  of hammer-type tools (arrangements for breaking-up hard ground E02F5/305; percussion -type rippers E02F5/323) · CPC title

• E04G23/08 Primary

  Wrecking of buildings (of fences E04H17/26; {Demolition agents based on cementitious or like materials C04B41/0009}) · CPC title

• E21F5/04

  Spraying barriers (spray nipples, spraying in general B05B, B05D; picks with arrangements of fluid-spraying nozzles E21C35/187) · CPC title

• E21F5/02 Primary

  by wetting or spraying · CPC title