The invention relates to the field of machine construction technology and implement technology.
Conventional tools such as shovels, snow pushers and various types of snow drivers do not enable snow/ground materials to be moved from beneath a passenger car which has become stuck due to a heavy fall of snow for example, and in some cases from in front of the wheels. The abovementioned implements generally do not fit beneath the car; in this case the danger is that the implement will get caught in structures, and the implement or the car will be damaged. Another problem is that the snow or other material slides off the implement when the latter is pulled. Thus these implements are not suitable for the removal of snow, or in some cases fine sand or another ground material, from a confined space beneath a vehicle. Moreover, the conventional implements mentioned above do not enable materials to be moved quickly and effectively in such a way that the materials are taken onto a relocation device with a movement directed towards a user too, and immediately moved away with a movement in the opposite direction for example.
An object of the invention is an implement for the relocation of materials which enables materials to be relocated with both forward and backward movements of the implement in an energy-efficient manner. This is achieved using a material relocation device for the relocation of materials. The material relocation device comprises a relocation base for the relocation of materials, and a material relocation structure connected to the relocation base for the relocation of materials towards a user and away from the user, the relocation structure comprising a turning flap structure to be turned according to a movement direction of material relocation, and the material relocation device comprises means for turning the flap structure and a counter-structure for setting the flap structure to a desired position thereof, in such a way that in a first movement direction the flap structure turns and allows the materials onto the relocation base, and in a second relocation direction the flap structure closes and holds the materials on the relocation base, and when switching from the relocation direction to the first movement direction the materials are released from the relocation base.
The invention also relates to a method for the relocation of materials. A turning flap structure connected to a relocation base of a relocation device is used in the method to relocate materials towards a user and away from the user, the turning flap structure turning according to movement directions in such a way that the flap structure turns and allows the materials onto the relocation base when the relocation device is moved in a first movement direction, the flap structure closes and holds the materials on the relocation base when the relocation device is moved in a second relocation direction, and the materials are released from the relocation base when the relocation device is moved from the relocation direction to the first movement direction.
The invention is based on the material relocation structure connected to the material relocation base for the forward relocation of materials and backward relocation of materials, making use of the turning flap structure which is turnable according to the movement direction of material relocation, and the flap structure is also fastenable in a desired position thereof.
An advantage of the invention is in particular the fact that the material relocation device according to the invention is also suited for use in situations in which traditional relocation devices perform inadequately, when the objective is for example to remove snow from beneath a vehicle that has become stuck. The relocation device according to the invention may also be used to remove snow for example from a vehicle's surroundings, a roadway or a yard, in a novel and efficient manner.
The development of the reversible shovel began with practical need and the situation, which has often occurred in the winter, in which a passenger car becomes stuck in snow which has accumulated on a road after a heavy fall of snow. In such a situation, the driving wheels lose their grip on the road, and the car becomes stuck in the snow which has become packed mainly in front of the wheels and beneath the car. The same situation may occur in some cases in summer conditions too, when there may be sand, mud or a similar ground type instead of snow. Due to the confined space beneath the car, it is generally not possible to get out of this situation using conventional snow handling implements, such as snow shovels and other types of shovel. In this case, by using the pull shovel disclosed in the present patent application and included in the reversible shovel for example, it is possible to remove snow from beneath the car by pulling it away in the scoop of the pull shovel. Alternatively, the solution according to the invention, included in the reversible shovel, may be used for the removal of materials, to move materials away from a user with back and forth movement. This solution brings more possibilities for getting out of cramped and difficult situations with a single implement. The relocation device may also be used for example for traditional snow shovelling in a yard, or in a similar developed and efficient manner.
In an implementation according to the invention, the flap structure may be set to a desired position thereof according to the movement direction in backward relocation, in such a way that the flap structure guides the materials to be relocated onto the relocation base in the first movement (forwards), and the flap structure holds the materials to be relocated on the relocation base in a backward relocating movement. When switching from the relocating movement to the first movement, the materials are able to leave the relocation base. In another implementation according to the invention, the flap structure may be set to a desired position thereof according to the movement direction in forward relocation, in such a way that the flap structure guides the materials to be relocated onto the relocation base in the first movement (backwards), and the flap structure holds the materials to be relocated on the relocation base in a forward relocating movement. When switching from the relocating movement to the first movement, the materials are able to leave the relocation base. In both implementations, the relocation structure loosens and guides the materials onto the relocation base in the first movement and makes it easier for the materials to leave at the end of the relocating movement, by preventing them from becoming stuck by virtue of the turning structure. The relocation structure may be fastenable at different points of the relocation base.
The removal of snow or ground material from difficult and confined spaces, e.g. from beneath a car, can be carried out using the reversible shovel's characteristics of relocation towards the user, i.e. backwards, and away from the user, i.e. forwards. An implement which operates in different directions may be transformed quickly from the reversible shovel using convenient quick locks 1 and 8 and by turning the handle around joint pegs 5 thereof, and this implement may be used like a normal shovel as needed, for example to shovel snow from a vehicle's surroundings.
The material relocation device according to the invention for the relocation of materials comprises a material relocation base 2. The material relocation device comprises a material relocation structure 20 connected to the relocation base 2, for forward relocation of materials and backward relocation of materials. The materials to be relocated may be for example snow, ice, sand or other ground material, or a mixture of these. The relocation structure 20 may comprise a turning flap structure 4, to be turned according to a movement direction of material relocation. The material relocation device may comprise means 6 for turning the flap structure, and a counter-structure 7 for setting the flap structure 4 to a desired position thereof. In exemplary embodiments of the invention, the relocation device may be for example a reversible shovel or pusher. In one embodiment of the invention, the relocation device may be connected to a motorized material relocation apparatus or vehicle, in which case it is also possible to carry out large-volume snow removal and material relocation required for large areas.
The relocation device may comprise a turnable handle 3, 9, to be turned to a different position according to a selected use. The turning flap structure 4 may be arranged to open when the relocation device is moved forwards to relocate the materials to be relocated onto the relocation base 2, and correspondingly, the flap structure 4 may be arranged to close when moved backwards, holding the materials to be relocated on the relocation base 2. The turning flap structure 4 may be arranged to open when the relocation device is moved backwards to relocate the materials to be relocated onto the relocation base 2, and correspondingly, the turning flap structure 4 may be arranged to close when the relocation device is moved forwards, holding the materials to be relocated on the relocation base 2.
The invention may be used for example for the removal of snow from in front of the wheels of a passenger car, from the sides thereof and from beneath the bottom thereof, in situations in which the car has become stuck on a road covered with a large amount of snow. Fine sand, mud or a similar material is also a possibility in the summer. Such a situation may be encountered in the winter for example after a heavy fall of snow on inadequately maintained roads, which often have not been ploughed quickly enough. In the situation mentioned, a vehicle, in most cases a passenger car, may become stuck, and the removal of snow, etc. which has become packed in front of the wheels and beneath the bottom is difficult or even impossible using existing conventional devices (common shovels, snow drivers, etc.), and it may even be necessary to call a recovery vehicle to free the car from its predicament.
Embodiments of the invention are presented below with reference to
In one embodiment of the invention, the apparatus may act as a pull shovel (
Snow/ground material which has become packed in front of the wheels of a vehicle and especially beneath the bottom thereof is removed using the reversible shovel in such a way that the shovel is first set to a pull shovel position using the quick locks 1 (
In addition to the characteristics mentioned above, the reversible shovel may be used like a conventional shovel as required (
The role of a (counter-)structure limiting the movement of the flap 4 may be played by the scoop or relocation base 2 when the flap is closing, and by the spring force located in connection with the means 6 when the flap is opening, either alone or together with the separate counter-structure 7. The spring force which assists the closing of the flap 4 and restricts the opening thereof may also be located separately from the means 6, depending on the embodiment, or the spring force is not required at all in all embodiments. The counter-structure 7 may be located at different points in the relocation structure depending on the embodiment, also in connection with the means 6, or is not needed in some embodiments, in which case the relocation base 2 and/or the spring force limits movement of the flap 4 in a corresponding manner. Moreover, the handle 3 or 9 of the relocation device may act as a structure which limits and guides the movement of the flap 4, depending on the position and operation thereof consistent with implementation in relation to the relocation structure. In some implementations of the relocation structure, the opening of the flap 4 does not need to be limited with a separate counter-structure; the required closure-assisting operation is accomplished through the placement of the means 6 in relation to the flap (
The turnable handle may be separate and connectable to the apparatus at different points and in different positions. The handle may be articulated or non-articulated, depending on the embodiment. The handle may be articulated with quick locking, immobile with quick locking, or completely fixed. In one embodiment of the invention, a cover may also be used to hold materials in the scoop 2, i.e. on top of the body. The cover may be articulated, fixed or quick-lockable. The cover could be webbed or solid. Depending on the embodiment, the cover may also be machine-operated. When the handle 3 or 9 is fixed or limited in movement, the relocation of materials in different directions or just one direction may be realized by changing the fastening of the relocation structure 20 in relation to the relocation base 2. With the relocation structure detached, the implement acts like a conventional implement.
The implement which performs relocation away from the user in
The flap 4 of the reversible shovel may be shaped such that the shape and geometry thereof guide the operation thereof in accordance with back-and-forth pulling-pushing movements, under the action of ground materials together with the spring force or without it (
The shape of the flap supports the durability and operation thereof, by guiding the pressure of ground materials so as to move it in a desired direction, by guiding the pressure of ground materials to below axis/joint 10 (
As the flap 4 begins to close, length c (the extremity of the flap) is at most the same as length a, and/or the extremity of the flap (opposite the upper edge/joint, against the body 2 or the bottom of the scoop in the closed position) is located below axis 10 (
When the handle 3 or 9 of the reversible shovel is turned and fastened in different positions with quick locking means, an implement is created which may be used for the efficient relocation of materials towards the user and away from the user. In addition, the tool may be used in the manner of conventional implements like pushers, etc., depending on the size and embodiment of the apparatus. It is also possible for these different ways of relocating materials to be carried out with the handle in a stepless setting or in a setting that is stepless to a limited extent, including operation of a conventional shovel, pusher, etc. Instead of snow, the reversible shovel is also suitable for the handling and relocation of other materials such as mud, sand and other similar materials. These multifaceted characteristics may also be realized as separate products, for example as a device which is forward-relocating (with relocation structure+conventional) or which performs relocation (backwards with relocation structure+forwards conventionally) and also apparatuses for use on larger machines.
In another embodiment of the invention, the flap 4 may also be articulated to the bottom or sides of the relocation device. The flap may also have a greater number of parts. In one embodiment of the invention, the flap may be moved with an external force by sliding, for example in the manner of a sliding door. In embodiments of the invention, for example in motorized embodiments, the movement path of the flap may be varied to have different sizes, and even to be a movement path of a full 360 degrees. When the means 6 for articulation of the flap 4 are located in an upper edge of the relocation base 2, a strong support/blade structure which aids the loosening and cutting of materials to be relocated may be installed in front of it, to facilitate the relocation of hard materials and the operation of the flap in the first movement. The structure in question may be a fixed part of the relocation base, or for example detachable and replaceable, and the means 6 may also be disposed on the structure in question. This blade/reinforcement also significantly reduces the stresses directed at the upper edge of the flap 4 when it is starting to open and also when the flap is open. The structure likewise makes it possible for the means 6 to be placed in a site that is able to withstand stresses very well. The same blade/support structure may also act as a counter-structure which limits movement of the flap 4 when it is closing, if a movement of the flap 4 in which it closes upwards from the bottom of the relocation base in the relocating movement is used in some embodiment of the relocation device through the placement of the means 6 in a lower part of the relocation base 2.
Moreover, point/blade parts, used for loosening materials and located at the side of the relocation structure of the relocation base and opposite the relocation structure may function in different ways, e.g. one being more capable of cutting into hard materials such as ice, and they may also be replaceable blades that are connectable to the relocation base.
In another embodiment of the invention, the flap, the fastening of the handle, and the angle of the entire relocation base (scoop) in relation to the handle, i.e. all functions, may be moved by machine power. Moreover, the quick locking and detachability of the handle may be arranged as needed. The handle may be fixed in the machine, and the apparatus may be turned to a required operating direction by opening the locking means. For example, in tractors, hydraulic quick locks may be present beside the bucket, precisely for the quick changing of tools, buckets, etc. Mechanized operation of the flap also enables it to have different movement tracks. The opening and closing of the flap may also be realized in a purely motorized fashion.
In one embodiment of the invention, the flap may be locked in a normal function. When the handle comes close to the flap, locking may be performed; this ensures the firmness and operation of the structure.
Fixed or detachable wheels may be connected to the relocation device according to one embodiment of the invention.
Number | Date | Country | Kind |
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20195043 | Jan 2019 | FI | national |
Filing Document | Filing Date | Country | Kind |
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PCT/FI2020/050031 | 1/20/2020 | WO | 00 |