EP3892385A1 - Tank attachment and detachment mechanism of work machine - Google Patents

Tank attachment and detachment mechanism of work machine Download PDF

Info

Publication number
EP3892385A1
EP3892385A1 EP21167147.4A EP21167147A EP3892385A1 EP 3892385 A1 EP3892385 A1 EP 3892385A1 EP 21167147 A EP21167147 A EP 21167147A EP 3892385 A1 EP3892385 A1 EP 3892385A1
Authority
EP
European Patent Office
Prior art keywords
tank
lever
work machine
engagement protruding
machine body
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.)
Withdrawn
Application number
EP21167147.4A
Other languages
German (de)
English (en)
French (fr)
Inventor
Toshihide Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maruyama Manufacturing Co Ltd
Maruyama Manufacturing Co Inc
Original Assignee
Maruyama Manufacturing Co Ltd
Maruyama Manufacturing Co Inc
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 Maruyama Manufacturing Co Ltd, Maruyama Manufacturing Co Inc filed Critical Maruyama Manufacturing Co Ltd
Publication of EP3892385A1 publication Critical patent/EP3892385A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/043—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump having pump readily separable from container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0211—Case coverings

Definitions

  • the present invention relates to a tank attachment and detachment mechanism of a work machine.
  • Japanese Patent No. 6427980 describes a high-pressure washer including a pump that discharges a washing liquid.
  • a pump that discharges a washing liquid.
  • the tank is mounted in the washer body.
  • a drain port which is provided in a bottom portion of the tank to discharge the washing liquid and a liquid supply connector which is provided in a top plate inside the washer body are connected to each other by fitting.
  • An object of the present invention is to provide a tank attachment and detachment mechanism of a work machine, which facilitates a removal of a tank from a work machine body.
  • the lever engagement protruding portion (19) meshes with the tank engagement protruding portion (25)
  • the lever engagement protruding portion (19) engages with the tank engagement protruding portion (25) to cause the tank (2) to be locked to the work machine body (1).
  • FIGS. 1 and 2 are views illustrating the washer including the tank attachment and detachment mechanism according to the embodiment of the present invention.
  • FIG. 3 is an exploded perspective view illustrating main parts of the tank attachment and detachment mechanism.
  • FIGS. 4 to 6 are cross-sectional views illustrating operation of the tank attachment and detachment mechanism.
  • the terms indicating directions such as "front”, “rear”, “top”, “bottom”, “right”, and “left” are based on the definition that, when the washer is placed on a horizontal surface, a side on which a pocket is located is the front.
  • a washer (work machine) 100 includes a washer body (work machine body) 1, and a tank 2 that accommodates water for washing, a washing liquid, or the like to be detachably mounted in the washer body 1.
  • the tank 2 when a lower portion of the tank 2 is inserted into an upper portion of the washer body 1, the tank 2 is mounted on a top plate inside the washer body 1.
  • a drain port in a bottom portion of the tank 2 is connected to a liquid supply connector, which is provided in the top plate of the washer body 1, by fitting.
  • a motor of a pump unit accommodated below the top plate inside the washer body 1 is driven by a battery to spray the water, the washing liquid, or the like from a nozzle of a hose connected to a pump of the pump unit.
  • the hose is removed from the washer body 1, and the hose is not drawn.
  • a front portion of the washer body 1 is provided with a pocket (holder) 3 that accommodates, for example, the nozzle, a detergent container, a towel, and the like.
  • a front surface, both side surfaces, and a bottom surface of the pocket 3 are closed.
  • the pocket 3 is open upward.
  • An inlet port of an upper portion of the tank 2 is closed with a cap 4 that is attachable and detachable.
  • An upper portion of the cap 4 is provided with a handle 5 for carrying the washer 100.
  • Tank attachment and detachment mechanisms 50 which lock or unlock the tank 2 to or from the washer body 1 are provided on both right and left sides of the washer 100.
  • the tank attachment and detachment mechanism 50 includes a lever 6 that is disposed on an outer side of a side portion of the washer body 1 to be operated when the tank 2 is locked or unlocked, and an arm 7 (refer to FIGS. 3 to 6 ) that rotatably connects the lever 6 and the upper portion of the washer body 1.
  • the arm 7 includes end portions 8 and 8 that extend in a direction orthogonal to a forward and rearward direction, and are disposed apart from each other in the forward and rearward direction, and a connecting portion 9 that extends in the forward and rearward direction to connect intermediate portions of the end portions 8 and 8.
  • One ends 10 and 10 (upper end portions in FIG. 4 ) of the end portions are rotatably supported on a first pin 11 extending in the forward and rearward direction.
  • the first pin 11 is connected to brackets 12 and 12 that are provided in the upper portion of the washer body 1 to be part from each other in the forward and rearward direction and to protrude outward in a rightward and leftward direction (refer to FIG. 4 ).
  • the lever 6 is formed in a recessed lidless box shape in which an upper portion 13, a front portion 14, a rear portion 15, a bottom portion 16, and an outer portion 17 are closed and the inside (inner portion) is open.
  • the lever 6 includes an opening 18.
  • the opening 18 is provided from a portion of the bottom portion 16 of the lever 6 to a lower portion of the outer portion 17, the portion excluding front and rear end portions.
  • the opening 18 extends from an inner side toward an outer side of the bottom portion 16 to reach the lower portion of the outer portion 17.
  • the opening 18 is provided to allow the hand of an operator to be put into the lever 6 from below.
  • a lever engagement protruding portion 19 protruding downward is provided inside a portion of the upper portion 13 of the lever 6, the portion excluding front and rear end portions.
  • the lever engagement protruding portion 19 is provided to lock the tank 2 to the washer body 1.
  • the upper portion 13 of the lever 6 is provided with a lever protrusion 20 that protrudes upward and extends in the forward and rearward direction to serve as an assist when the tank 2 is removed.
  • Pin supporting portions 21 extending in the rightward and leftward direction and protruding inward are provided on inner sides of the front portion 14 and the rear portion 15 of the lever 6 at substantially the center in an upward and downward direction, respectively.
  • End portions of a second pin 22 extending in the forward and rearward direction are connected to the pin supporting portions 21 and 21, respectively.
  • the other ends 23 and 23 (lower end portions in FIG. 4 ) of the end portions of the arm 7 are rotatably supported on the second pin 22.
  • a portion of the lever 6 below the second pin 22 is an operation portion 40 that is operated when the tank 2 is locked to or unlocked from the washer body 1.
  • the tank 2 includes brackets 24, which protrude outward and extend in the forward and rearward direction, in both right and left side portions.
  • the bracket 24 is provided at a position above the first pin 11 when the tank 2 is mounted in the washer body 1.
  • a tank engagement protruding portion 25 protruding upward is provided in an upper portion on an outer side of the bracket 24.
  • the tank engagement protruding portion 25 is provided to mesh with and engage with the lever engagement protruding portion 19 from the outside.
  • tank protrusion 26 protruding downward is provided in the projecting portion at a position above the tank engagement protruding portion 25.
  • the tank protrusion 26 is provided to mesh with the lever protrusion 20 of the lever 6 from the inside to push up the tank 2.
  • the tank attachment and detachment mechanism 50 is configured to include the tank engagement protruding portion 25, the tank protrusion 26, the lever 6 including the lever engagement protruding portion 19 and the lever protrusion 20, and the arm 7.
  • the washer 100 configured in such a manner, when the lower portion of the tank 2 is inserted into the upper portion of the washer body 1, the tank 2 is mounted in the washer body 1.
  • the hand is put into the opening 18 forming the operation portion 40 of the lever 6 to grip a lower portion of the lever 6, to pull the lower portion of the lever 6 outward and upward (refer to FIG. 5 ), and thereafter, to lower the lever 6, so that the lever engagement protruding portion 19 meshes with the tank engagement protruding portion 25.
  • the washer 100 of one example includes the lever 6 that is disposed on the outer side of the washer body 1 to be operated when the tank 2 is locked or unlocked; the arm 7 of which the one ends 10 and 10 are rotatably connected to the outer side of the washer body 1 via the first pin 11, and of which the other ends 23 and 23 are rotatably connected to an inner side of the lever 6 via the second pin 22; the tank engagement protruding portion 25 that is provided on an outer side of the tank 2 at a position above the first pin 11 when the tank 2 is mounted in the washer body 1, to protrude upward; the lever engagement protruding portion 19 that is provided on an inner side of the upper portion of the lever 6, and is meshable with and engagable with the tank engagement protruding portion 25 by operation of the lever 6; the tank protrusion 26 that is provided above the tank engagement protruding portion 25 on the outer side of the tank 2 to protrude downward; and the lever protrusion 20 that is provided in the upper portion of the lever 6, and is meshable with the
  • the present invention has been specifically described based on the embodiment above; however, the present invention is not limited to the embodiment.
  • the present invention is also applicable to a backpack type power sprayer in which a chemical solution tank is detachably mounted, and in short, is applicable to all types of work machines in which tanks are detachably mounted.

Landscapes

  • Catching Or Destruction (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Nozzles (AREA)
EP21167147.4A 2020-04-10 2021-04-07 Tank attachment and detachment mechanism of work machine Withdrawn EP3892385A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020070807A JP7349953B2 (ja) 2020-04-10 2020-04-10 作業機のタンク着脱機構

Publications (1)

Publication Number Publication Date
EP3892385A1 true EP3892385A1 (en) 2021-10-13

Family

ID=75426445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21167147.4A Withdrawn EP3892385A1 (en) 2020-04-10 2021-04-07 Tank attachment and detachment mechanism of work machine

Country Status (2)

Country Link
EP (1) EP3892385A1 (ja)
JP (1) JP7349953B2 (ja)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0127980B2 (ja) 1981-11-19 1989-05-31 Toshiba Ceramics Co
WO2012030517A1 (en) * 2010-08-30 2012-03-08 Wise Todd M Portable pressure washer
US20120312340A1 (en) * 2011-06-07 2012-12-13 Active Products International Limited High pressure water cleaner with detachable water tank
CN107913868A (zh) * 2017-12-20 2018-04-17 常州格力博有限公司 高压清洗机

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6427980B2 (ja) * 2014-06-19 2018-11-28 工機ホールディングス株式会社 液体吐出装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0127980B2 (ja) 1981-11-19 1989-05-31 Toshiba Ceramics Co
WO2012030517A1 (en) * 2010-08-30 2012-03-08 Wise Todd M Portable pressure washer
US20120312340A1 (en) * 2011-06-07 2012-12-13 Active Products International Limited High pressure water cleaner with detachable water tank
CN107913868A (zh) * 2017-12-20 2018-04-17 常州格力博有限公司 高压清洗机

Also Published As

Publication number Publication date
JP2021167627A (ja) 2021-10-21
JP7349953B2 (ja) 2023-09-25

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