NL2018401B1 - A spraying carriage for spraying plant leaves - Google Patents

A spraying carriage for spraying plant leaves Download PDF

Info

Publication number
NL2018401B1
NL2018401B1 NL2018401A NL2018401A NL2018401B1 NL 2018401 B1 NL2018401 B1 NL 2018401B1 NL 2018401 A NL2018401 A NL 2018401A NL 2018401 A NL2018401 A NL 2018401A NL 2018401 B1 NL2018401 B1 NL 2018401B1
Authority
NL
Netherlands
Prior art keywords
cam
nozzle support
frame
spraying
wheel
Prior art date
Application number
NL2018401A
Other languages
Dutch (nl)
Inventor
Wilhelmus Maria Straathof Theodorus
Van Den Berg Thijs
Original Assignee
Micothon B V
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 Micothon B V filed Critical Micothon B V
Priority to NL2018401A priority Critical patent/NL2018401B1/en
Application granted granted Critical
Publication of NL2018401B1 publication Critical patent/NL2018401B1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0025—Mechanical sprayers
    • A01M7/0032—Pressure sprayers
    • A01M7/0035—Pressure sprayers mounted on a frame and guided by hand; Spray barrow

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

A sprayi ng carr i age f or sprayi ng p l ant l eaves of a row of p l ants dur i ng movement a l ong the row of p l ants compr i ses a f rame , a whee l f or movi ng the sprayi ng carr i age and a nozz l e support i nc l udi ng sprayi ng nozz l es . The whee l i s mounted to the f rame and rotatabl e wi th respect to the f rame about a whee l ax i s . The nozz l e support i s mounted to the f rame and movabl e wi th respect to the f rame i n upward and downward d i rect i on between a l ow pos i t i on and a h i gh pos i t i on through an oscillat i ng mechani s m. The carr i age i s provi ded wi th an arrest i ng e l ement f or bear i ng the nozz l e support i n i ts l ow pos i t i on . The oscillat i ng mechani sm compr i ses a cam at a s i de of sai d whee l at a d i stance f rom the whee l ax i s and a cam f o llower wh i ch i s movabl e wi th respect to the f rame and wh i ch cooperates wi th the cam and the nozz l e support . The cam and the cam f o llower are adapted such that dur i ng movi ng the sprayi ng carr i age i n one d i rect i on the cam engages the cam f o llower when the nozz l e support i s i n i ts l ow pos i t i on and subsequent l y f orces the nozz l e support i n upward d i rect i on through the cam f o llower until the cam f o llower l oses contact wi th the cam caus i ng the nozz l e support to move to i ts l ow pos i t i on under gravi tat i onal f orce .

Description

Octrooicentrum
Θ 2018401
(21) Aanvraagnummer: 2018401 © Aanvraag ingediend: 21 februari 2017 (g) Int. CL:
A01M 7/00 (2017.01)
(4^ Aanvraag ingeschreven: (73) Octrooihouder(s):
17 september 2018 Micothon B.V. te Mijdrecht.
(43) Aanvraag gepubliceerd:
- (72) Uitvinder(s):
Theodorus Wilhelmus Maria Straathof
Octrooi verleend: te Mijdrecht.
17 september 2018 Thijs van den Berg te Delfgauw.
(45) Octrooischrift uitgegeven:
15 november 2018 (74) Gemachtigde:
ir. A.R. Aalbers te Amsterdam.
(54) A spraying carriage for spraying plant leaves
57) A spraying carriage for spraying plant leaves of a row of plants during movement along the row of plants comprises a frame, a wheel for moving the spraying carriage and a nozzle support including spraying nozzles. The wheel is mounted to the frame and rotatable with respect to the frame about awheel axis. The nozzle support is mounted to the frame and movable with respect to the frame in upward and downward direction between a low position and a high position through an oscillating mechanism. The carriage is provided with an arresting element for bearing the nozzle support in its low position. The oscillating mechanism comprises a cam at a side of said wheel at a distance from the wheel axis and a cam follower which is movable with respect to the frame and which cooperates with the cam and the nozzle support. The cam and the cam follower are adapted such that during moving the spraying carriage in one direction the cam engages the cam follower when the nozzle support is in its low position and subsequently forces the nozzle support in upward direction through the cam follower until the cam follower loses contact with the cam causing the nozzle support to move to its low position under gravitational force.
NL Bl 2018401
Dit octrooi is verleend ongeacht het bijgevoegde resultaat van het onderzoek naar de stand van de techniek en schriftelijke opinie. Het octrooischrift komt overeen met de oorspronkelijk ingediende stukken.
NL 25317-vH
A spraying carriage for spraying plant leaves
The present invention relates to a spraying carriage for spraying plant leaves of a row of plants during movement along the row of plants, comprising a frame, a wheel for moving the spraying carriage and a nozzle support including spraying nozzles, wherein the wheel is mounted to the frame and rotatable with respect to the frame about a wheel axis, and wherein the nozzle support is mounted to the frame and movable with respect to the frame in upward and downward direction between a low position and a high position through an oscillating mechanism, wherein the carriage is provided with an arresting element for bearing the nozzle support in its low position.
Such a spraying carriage is known from NL 2010142.
The known spraying carriage comprises a frame, wheels and a nozzle support. The nozzle support comprises spraying nozzles at different heights on the nozzle support. The carriage is provided with a nozzle drive to move the nozzle support in vertical direction via an oscillating mechanism. When moving the spraying carriage along a row of plants the nozzle support automatically moves upwardly at relatively low speed and downwardly at relatively high speed. Although the known spraying carriage functions well, it is relatively complex and expensive in particular for using in developing countries.
An object of the invention is to provide a simple and low-cost spraying carriage.
This object is accomplished with the spraying carriage according to the invention which is characterized in that the oscillating mechanism comprises a cam at a side of the wheel at a distance from the wheel axis and a cam follower which is movable with respect to the frame and which cooperates with the cam and the nozzle support, wherein the cam and the cam follower are adapted such that during moving the spraying carriage in one direction the cam engages the cam follower when the nozzle support is in its low position and subsequently forces the nozzle support in upward direction through the cam follower until the cam follower loses contact with the cam causing the nozzle support to move to its low position under gravitational force.
An advantage of the present invention is its simple oscillating mechanism. During movement of the spraying carriage in one direction on a floor the wheel rotates and causes the cam to rotate about the wheel axis. When the cam engages the cam follower when the nozzle support is in its low position the cam will lift the nozzle support via the cam follower to its high position where the cam and cam follower disengage. The shape and dimensions of the cam and cam follower and the path that the cam follower follows during moving with respect to the frame defines a contact path between the cam and the cam follower. For example, a shorter contact path may cause a shorter lifting height of the nozzle support.
In a preferred embodiment the cam is a first cam and the oscillating mechanism comprises at least a second cam at the side of said wheel at angular distance from the first cam, wherein the arresting element is located at the frame and the angular distance between the first cam and the second cam is selected such that at a predetermined speed of the spraying carriage the arresting element bears the nozzle support before the second cam bears the cam follower. This prevents the second cam from being impacted by the cam follower due to the falling nozzle support before it is caught by the arresting element. The predetermined speed may be maximum walking speed, for example 10 km/h in case the spraying carriage is moved by a person. If the spraying carriage is operated at a higher speed, the second cam might already engage the cam follower before the nozzle support has achieved its low position due to a combination of inertia of the nozzle support and rotational speed of the cams. It is noted that the distance between the wheel axis and the first cam may be equal to the distance between the wheel axis and the second cam.
The side of the wheel may be provided with a plurality of cams at a distance from the wheel axis and at equiangular distances from each other.
In a practical embodiment the nozzle support is mounted to the frame via a four-bar linkage including a first upwardly directed bar which is fixed to the frame or forms a part of the frame, a second upwardly directed bar which is fixed to the nozzle support or forms a part of the nozzle support, and an upper horizontally oriented bar and a lower horizontally oriented bar. This provides a stable guide system for guiding the nozzle support with respect to the frame.
The four-bar linkage may be a parallelogram linkage such that the second bar including the nozzle support is movable parallel to the first bar.
The cam follower may be located at the lower bar. This means that the cam follower cooperates with the nozzle support through the lower bar of the four-bar linkage, which provides a simple and compact transmission between the cam and the nozzle support.
The arresting element may be located at the first bar and adapted such that it contacts the upper bar when the nozzle support is in its low position. This means that the arresting element bears the nozzle support indirectly through the upper bar of the four-bar linkage. The arresting element may further comprise a spring and/or damper in order to catch the upper bar in a smooth way when the nozzle support approaches its low position.
The cam, or each of the cams, may comprise a cylindrical pin projecting from the side of the wheel.
Preferably, at least an additional wheel is rotatably mounted to the frame such that the frame is supported and movable by at least two wheels.
The invention will hereafter be elucidated with reference to very schematic drawings showing an embodiment of the invention by way of example.
Fig. 1 is a perspective view of an embodiment of a spraying carriage according to the invention, illustrating a situation in which the nozzle support is in a low position.
Fig. 2 is a similar view as Fig. 1, but showing the spraying carriage from an opposite side.
Fig. 3 is a similar view as Fig. 1, but illustrating a situation in which the nozzle support is in a high position.
Fig. 4 is a side view of the embodiment as shown in Fig. 1, illustrating a situation in which the nozzle support is in a low position.
Fig. 5 is a similar view as Fig. 4, but illustrating a situation in which the nozzle support is in a high position.
Figs. 1-5 show an embodiment of a spraying carriage 1 according to the invention, as seen from different sides and in different situations. The spraying carriage 1 comprises a nozzle support 2 including spraying nozzles 3. The spraying carriage 1 is suitable for spraying plant leaves of a row of plants, by moving the spraying carriage 1 along a row of plants and simultaneously spraying the plants. During moving the spraying carriage 1 on a floor F the nozzle support 2 is oscillated in vertical direction between a low position and a high position. It is moved slower in upward direction than in downward direction such that particularly undersides of plant leaves are sprayed with a spraying liquid, whereas upper sides of the plant leaves are more or less automatically sprayed due to falling droplets of the spraying liquid. More details regarding spraying plants and means for creating a spray are described in NL 2010142.
The embodiment as shown in Figs. 1-5 comprises a frame 4 to which a rear wheel 5 and two front wheels 6 are mounted. The rear wheel 5 is rotatable with respect to the frame 4 about a rear wheel axis 7. The front wheels 6 are mounted to the frame at a mutual axial distance and they are rotatable with respect to the frame 4 about a common front wheel axis 8.
The frame 4 is provided with a pull rod 9 including a handle 10 which allows a person to pull the spraying carriage 1 along a row of plants. Alternatively the spraying carriage 1 can be moved automatically for example by guiding it along a rail.
The diameter of the rear wheel 5 is larger than each of the diameters of the front wheels 6. The rear wheel 5 has more than one function: it does not only support the frame 4 for easily moving the spraying carriage 1, but it also generates oscillation of the nozzle support 2 in vertical direction when moving the spraying carriage 1 on the floor F in a direction which is directed from the rear wheel axis 7 to the front wheel axis 8.
The nozzle support 2 is mounted to the frame 4 via a four-bar linkage 11 extending in a vertical plane. The fourbar linkage 11 has an upper bar 12, and a lower bar 13, which are both horizontally oriented. The lower bar 13 is a buckled bar and partly comprises parallel rods between which space is provided for accommodating the rear wheel 5. Furthermore, the four-bar linkage 11 has a first upwardly directed bar 14 which forms a portion of the frame 4 and a second upwardly directed bar 15 which is integral with the nozzle support 2. In the embodiment as shown in the Figs. 1-5 the four-bar linkage 11 is a parallelogram linkage, which means that the second bar 15 is movable parallel to the first bar 14, in this case vertically .
In order to move the nozzle support 2 between its low position and its high position the spraying carriage 1 is provided with an oscillating mechanism. In the embodiment as shown in Figs. 1-5 the oscillating mechanism comprises five cams 16 at either side of the rear wheel 5. Each of the cams is a cylindrical pin which projects from the side of the rear wheel 5 and is located at a distance from the rear wheel axis 7. The cams 16 are located at equiangular distances from each other, in case of five cams 16 the angular distance is 72°. The cams 16 at either side of the rear wheel 5 are aligned.
The oscillating mechanism also comprises a cam follower 17 for driving the nozzle support 2 in upward direction. The cam follower 17 alternatingly cooperates with each of the cams 16 and is located at the lower bar 13 of the four-bar linkage 11. When pulling the spraying carriage 1 on the floor F one of the cams 16 that engages the cam follower will push the cam follower 17, and thus the nozzle support via the four-bar linkage 11, in upward direction. Due to the location of the cam follower 17 on the lower bar 13 it follows a partly circular cam follower path in vertical direction with respect to the frame 4. The cams 16 follow a circular cam path about the rear wheel axis 7. The cam path intersects the cam follower path. The shape and dimensions of the cams 16 and the cam follower 17 and the cam path and cam follower path define a contact path between each of the cams 16 and the cam follower 17 during rotation of the rear wheel 5. The cams 16 and the cam follower 17 are adapted such that during moving the spraying carriage 1 the respective passing cams 16 engage the cam follower 17 when the nozzle support 2 is in its low position and subsequently forces the nozzle support 2 in upward direction through the cam follower 17 until the cam follower 17 loses contact with the cam 16. After losing contact between the cam 16 and the cam follower 17 the nozzle support 2 will move downwardly to its low position under gravitational force. In the embodiment as shown the cam follower 17 is formed by two plates which can be engaged by respective cams 16 at opposite sides of the rear wheel 5.
In order to catch the nozzle support 2 in its low position the frame 4 is provided with an arresting element 18. In this case the arresting element 18 is fixed to the first bar 14 of the frame 4 and contacts the upper bar 12 when the nozzle support 2 is in its low position. The arresting element 18 is provided with a damper (not shown) in order to catch the upper bar 12 in a smooth way when the nozzle support 2 approaches its low position.
Figs. 1, 2 and 4 show the spraying carriage 1 in a situation in which the nozzle support 2 is in its low position and Figs. 3 and 5 show the spraying carriage 1 in a situation in which the nozzle support 2 is in its high position. The number of cams 16 and the weight of the nozzle support 2 and the four-bar linkage 11 are such that at walking speed, e.g. between 5 and 10 km/h, the arresting element 18 engages the upper bar 12 before a next cam 16 engages the cam follower 17.
The invention is not limited to the embodiment shown in the drawings and described hereinbefore, which may be varied in different manners within the scope of the claims and their technical equivalents.

Claims (9)

ConclusiesConclusions 1 Sproeiwagen (1) voor het besproeien van plantenbladeren van een rij planten tijdens het verplaatsen langs de rij planten, omvattende een frame (4), een wiel (5) voor het verplaatsen van de sproeiwagen (1) en een spuitmondondersteuning (2) met spuitmonden (3), waarbij het wiel (5) aan het frame (4) is bevestigd en roteerbaar is ten opzichte van het frame (4) om een wielas (7), en waarbij de spuitmondondersteuning (2) aan het frame (4) is bevestigd en beweegbaar is ten opzichte van het frame (4) in opwaartse en neerwaartse richting tussen een lage positie en een hoge positie door een oscillatiemechanisme (16, 17), waarbij de wagen (1) is voorzien van een stopelement (18) voor het dragen van de spuitmondondersteuning (2) in de lage positie daarvan, met het kenmerk dat het oscillatiemechanisme is voorzien van een nok (16) aan een zijkant van het wiel (5) op afstand van de wielas (7) en een nokvolger (17) die beweegbaar is ten opzichte van het frame (4) en die samenwerkt met de nok (16) en de spuitmondondersteuning (2), waarbij de nok (16) en de nokvolger (17) zodanig zijn ingericht dat tijdens het in één richting bewegen van de sproeiwagen (1) de nok (16) de nokvolger (17) aangrijpt als de spuitmondondersteuning (2) in de lage positie daarvan is en de spuitmondondersteuning (2) vervolgens via de nokvolger (17) in opwaartse richting dwingt totdat de nokvolger (17) contact verliest met de nok (16) waardoor de spuitmondondersteuning (2) onder zwaartekracht naar de lage positie daarvan beweegt.1 Spraying trolley (1) for spraying plant leaves from a row of plants during displacement along the row of plants, comprising a frame (4), a wheel (5) for displacing the spraying trolley (1) and a nozzle support (2) with nozzles (3), wherein the wheel (5) is attached to the frame (4) and is rotatable relative to the frame (4) about a wheel axle (7), and wherein the nozzle support (2) is attached to the frame (4) is mounted and movable relative to the frame (4) in an upward and downward direction between a low position and a high position by an oscillation mechanism (16, 17), the carriage (1) being provided with a stop element (18) for supporting the nozzle support (2) in its low position, characterized in that the oscillating mechanism is provided with a cam (16) on a side of the wheel (5) spaced from the wheel axle (7) and a cam follower (17) ) which is movable relative to the frame (4) and which cooperates with the cam (16) e n the nozzle support (2), wherein the cam (16) and the cam follower (17) are arranged such that while moving the spray trolley (1) in one direction, the cam (16) engages the cam follower (17) as the nozzle support ( 2) is in its low position and then urges the nozzle support (2) upwards via the cam follower (17) until the cam follower (17) loses contact with the cam (16) whereby the nozzle support (2) gravitates to the low position thereof. 2 Sproeiwagen (1) volgens conclusie 1, waarbij de nok een eerste nok (16) is en het oscillatiemechanisme aan de zijkant van het wiel (5) op hoekafstand van de eerste nok (16) ten minste een tweede nok (16) omvat, waarbij het stopelement (18) zich ter plaatse van het frame (4) bevindt en de hoekafstand tussen de eerste nok (16) en de tweede nok (16) zodanig is gekozen dat bij een vooraf bepaalde snelheid van de sproeiwagen (1) het stopelement (18) de spuitmondondersteuning (2) draagt voordat de tweede nok (16) de nokvolger (17) draagt.Spraying cart (1) according to claim 1, wherein the cam is a first cam (16) and the oscillation mechanism on the side of the wheel (5) comprises at least a second cam (16) at angular distance from the first cam (16), the stop element (18) being located at the frame (4) and the angular distance between the first cam (16) and the second cam (16) is selected such that at a predetermined speed of the spraying trolley (1) the stop element (18) carries the nozzle support (2) before the second cam (16) carries the cam follower (17). 3 Sproeiwagen (1) volgens conclusie 1 of 2, waarbij de zijkant van het wiel (5) is voorzien van een aantal nokken (16) op afstand van de wielas (7) en op gelijke hoekafstand van elkaar.Spraying cart (1) according to claim 1 or 2, wherein the side of the wheel (5) is provided with a number of cams (16) spaced from the wheel axle (7) and at the same angular distance from each other. 4 Sproeiwagen (1) volgens één van de voorgaande conclusies, waarbij de spuitmondondersteuning (2) aan het frame (4) is bevestigd via een vierstangenmechanisme (11) met een eerste omhoog gerichte stang (14) die is vastgemaakt aan het frame (4) of een deel van het frame (4) vormt, een tweede omhoog gerichte stang (15) die is vastgemaakt aan de spuitmondondersteuning (2) of een deel van de spuitmondondersteuning (12) vormt, en een bovenste horizontaal georiënteerde stang (12) en een onderste horizontaal georiënteerde stang (13).Spraying cart (1) according to one of the preceding claims, wherein the nozzle support (2) is attached to the frame (4) via a four-rod mechanism (11) with a first upwardly directed rod (14) attached to the frame (4) or forms part of the frame (4), a second upwardly directed rod (15) attached to the nozzle support (2) or forms a part of the nozzle support (12), and an upper horizontally oriented rod (12) and a lower horizontally oriented rod (13). 5 Sproeiwagen (1) volgens conclusie 4, waarbij het vierstangenstelsel (11) een parallellogram is.Spraying cart (1) according to claim 4, wherein the four-bar system (11) is a parallelogram. 6 Sproeiwagen (1) volgens conclusie 4 of 5, waarbij de nokvolger (17) zich ter plaatse van de onderste stang (13) bevindt.Spraying cart (1) according to claim 4 or 5, wherein the cam follower (17) is located at the location of the lower rod (13). 7 Sproeiwagen (1) volgens één van de conclusies 4-6, waarbij het stopelement (14) zich bij de eerste stang (14) bevindt en zodanig aangepast is dat het contact maakt met de bovenste stang (12) wanneer de spuitondersteuning (2) in de onderste positie daarvan is.Spraying cart (1) according to one of claims 4-6, wherein the stop element (14) is located at the first rod (14) and is adapted such that it makes contact with the upper rod (12) when the spray support (2) is in its lower position. 8 Sproeiwagen (1) volgens één van de voorgaande conclusies, waarbij de nok (16), of elk van de nokken (16), een cilindrische pen omvat die vanaf de zijkant van het wiel (5) uitsteekt.Spraying cart (1) according to one of the preceding claims, wherein the cam (16), or each of the cams (16), comprises a cylindrical pin protruding from the side of the wheel (5). 9 Sproeiwagen (1) volgens één van de voorgaande conclusies, waarbij ten minste een extra wiel (6) zodanig roteerbaar aanSpraying cart (1) according to one of the preceding claims, wherein at least one additional wheel (6) is rotatable on such 5 het frame (4) is bevestigd dat het frame (4) ondersteund wordt en beweegbaar is door ten minste twee wielen (5, 6).The frame (4) is confirmed that the frame (4) is supported and can be moved by at least two wheels (5, 6).
NL2018401A 2017-02-21 2017-02-21 A spraying carriage for spraying plant leaves NL2018401B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2018401A NL2018401B1 (en) 2017-02-21 2017-02-21 A spraying carriage for spraying plant leaves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2018401A NL2018401B1 (en) 2017-02-21 2017-02-21 A spraying carriage for spraying plant leaves

Publications (1)

Publication Number Publication Date
NL2018401B1 true NL2018401B1 (en) 2018-09-17

Family

ID=58995182

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2018401A NL2018401B1 (en) 2017-02-21 2017-02-21 A spraying carriage for spraying plant leaves

Country Status (1)

Country Link
NL (1) NL2018401B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB132184A (en) *
US444786A (en) * 1891-01-13 Wheeled insect-destroyer
US2713816A (en) * 1954-06-29 1955-07-26 Robert B Berg Cultivators for row plants
US4936096A (en) * 1986-12-08 1990-06-26 Vanderjagt John A Drive mechanism
WO1996008317A1 (en) * 1994-09-16 1996-03-21 Victor Vivian Miers Wheeled spraying unit with variable rates of pressurisation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB132184A (en) *
US444786A (en) * 1891-01-13 Wheeled insect-destroyer
US2713816A (en) * 1954-06-29 1955-07-26 Robert B Berg Cultivators for row plants
US4936096A (en) * 1986-12-08 1990-06-26 Vanderjagt John A Drive mechanism
WO1996008317A1 (en) * 1994-09-16 1996-03-21 Victor Vivian Miers Wheeled spraying unit with variable rates of pressurisation

Similar Documents

Publication Publication Date Title
US20160310857A1 (en) Toy playset
CN106061868B (en) Stocking system and method for executing maintenance in such stocking system
NL2018401B1 (en) A spraying carriage for spraying plant leaves
US20170072983A1 (en) Collapsible pushchair frame or doll's pushchair frame
RU2016116561A (en) AUXILIARY APPARATUS FOR A PERSON WITH A LIMITED PHYSICAL POSSIBILITY
US20140334910A1 (en) Roller lift handle system
US3090617A (en) Repeating exercising device
US20210114646A1 (en) Suitcase and hand truck for ascending and descending stairs
US2895735A (en) Amusement ride
JP6174621B2 (en) Caster device for level difference
US20040231553A1 (en) Amusement device
CN211494138U (en) Shallow and chassis structure thereof
CN205965014U (en) Toy suit
CN111806535B (en) Trolley for chemical transportation
KR101545730B1 (en) Recreation facility with cable
CN113263046A (en) Spraying equipment for environmental remediation
US3708912A (en) Bouncing passenger vehicle toy
CN116575799B (en) Highway construction safety protection method
WO2013147648A1 (en) "gravity walker" vehicle
US839024A (en) Aerial tramway.
RU2603579C1 (en) Self-winged galachi swing
EP2484416A1 (en) Fun park attraction
CN109605950B (en) Automatic ink jet numbering machine of spring
KR20130045880A (en) A sliding playground equipment
US1716235A (en) Amusement apparatus

Legal Events

Date Code Title Description
MM Lapsed because of non-payment of the annual fee

Effective date: 20210301