Connection unit of elements of constructor or modeling tools
The proposed connection node with central projections and grooves provides secure and durable assembly of mechanical model components using metal parts, addressing reliability and assembly issues in existing mechanical models.
Patent Information
- Application Number
- PCT/UA2024/000016
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-24
- Filing Date
- 2024-03-13
- Publication Date
- 2025-07-31
AI Technical Summary
Existing mechanical model connection nodes suffer from insufficient reliability, rapid wear due to low hardness materials like plywood and wood, and difficulty in assembly with existing connection methods.
A connection node composed of two identical flat parts with central projections and longitudinal grooves, allowing for a cross-shaped junction and protrusions that can be bent for secure assembly, using metal for durability.
Ensures quick, easy, and strong connections in all directions with reliable fixation, enhancing the durability and assembly efficiency of mechanical model components.
Smart Images

Figure UA2024000016_31072025_PF_FP_ABST
Abstract
Description
[0001] CONNECTION UNIT OF ELEMENTS OF CONSTRUCTOR OR MODELING TOOLS
[0002] A utility model refers to light industry, namely to connection nodes in design and modeling tools and belongs to the field of sets of individual elements that can be assembled into a toy model. The technical solution used in the useful model can be used to assemble toy and souvenir sets, prefabricated mechanical models that are obtained by connecting component elements in a certain sequence, and other constructors. Such models develop the creative imagination of the person who assembles such a mechanical model, logical thinking, attention, and perseverance.
[0003] From the state of the art, a node of separate moving elements of a mechanical model capable of moving around one axis is known (Patent of Ukraine No. 95685, IPC A63H 33 / 00, A63F 9 / 12, published in Bulletin No. 24, dated 12.25.2014), a node of separate of moving elements of a mechanical model, capable of moving around one axis, contains the axis and details of individual moving elements that are connected to each other. The node contains two groups of component parts. The first group of component parts includes at least two individual parts, and each of the individual parts includes a central hole for the insertion of the axis, while each of the parts of the first group includes two rectangular holes that are symmetrically located around the central hole. The second group of component parts contains two separate parts that are pair- symmetrical, and each of the parts contains protrusions on the edges and also contains one protrusion in the central part. The first and second group of component parts are connected to each other by pre-assembling the parts of the second group. The disadvantages of this technical solution are: insufficient reliability of the connection, insufficient resource of the axis; the execution of parts of the unit from sheet plywood, and the axles from wood with lower hardness, leads to rapid wear of the created unit.
[0004] Also known from the state of the art is a set of individual moving elements of a mechanical model capable of moving around one axis (patent of Ukraine No. 115090, IPC A63H 33 / 04, A63H 33 / 08 (2006.01), A63H 33 / 10 (2006.01), A63F 9 / 12 (2006.01), published in Bulletin No. 7, dated 04.10.2017). A node of separate moving elements of a mechanical model capable of moving around one axis contains a common axis, separate moving elements and parts of such separate moving elements that are connected to each other. The assembly includes a first group of parts and a second group of parts, wherein the first group of parts includes at least two separate parts, and each of the individual parts of the first group of parts includes a central hole for insertion into the center hole of the axle, in addition, each of the less than two separate parts of the first group of parts contains at least two rectangular connecting holes, which are symmetrically located around the central hole on each of the separate parts of the first group of parts, and the second group of parts contains at least two separate parts that are pair-symmetrical, and each of these separate parts of the second group of parts contains protrusions at the edges, in addition, each of these separate parts of the second group of parts contains in the central part at least one central protrusion. At the same time, the first group of parts and the second group of parts are connected to each other by the assembly of individual parts of the second group of parts with the formation during this assembly between central protrusions of individual parts of the second group of parts of the central axial gap, further insertion of protrusions located along the edges of the individual parts of the second group of parts into at least two rectangular connecting holes of one of the individual parts of the first group of parts, and further insertion of other protrusions located along the edges of individual parts of the second group of parts into at least two rectangular connecting holes of another individual part of the first group of parts, and then inserting the axis into the central hole of one of the individual parts of the first group of parts, in the central axial gap, which is formed between the central protrusions of individual parts of the second group of parts and in the central hole of another individual part of the first group of parts. The disadvantages of this technical solution are: insufficient reliability of the connection, insufficient resource of the axis; the execution of parts of the unit from sheet plywood, and the axles from wood with lower hardness, leads to rapid wear of the created unit. The main disadvantages of the presented technical solution are low reliability and, as it should be, a small resource of the connection, due to its use as a connecting element as an axis in the absence of a rigid attachment of the resulting node to the finished mechanical model.
[0005] The closest to the claimed technical solution is the method of connecting the elements of the designer (patent of Ukraine No. 119137, IPC A63H 33 / 00, A63H 33 / 08, published in bulletin No. 17, dated 11.09.2017), according to which two flat connected elements of the first group create a shaft, on which a transverse element in the form of a gear of the second group is put on, the protrusions in the elements of the first group are inserted into the holes of the gear, after which special protrusions are bent to firmly connect the gear to the shaft, then they also put transverse elements in the form of gears on the shaft, bending the protrusions to hold the specified gears on the shaft and creating a connection node of the designer elements, holes around the central hole of the parts of the second group, which causes difficulties in the manufacture and assembly of the unit by the user in case of a small error or displacement of the protrusions and / or holes; insufficient reliability of the connection, rapid loss of elastic and / or mechanical properties by the axis, occurrence of backlashes, malfunctions of the axis of the parts, due to insufficient fixation of the parts of the second group by stops and / or protrusions, which are made with the possibility of bending in the direction of the axis.
[0006] The basis of a useful model is the task of obtaining a connection node in which, due to the mutual arrangement of elements and their fastening, the resulting connection node allows for quick, easy and at the same time strong connection of parts with each other in all directions and ensuring reliable fixation of parts in the process assembly of node elements.
[0007] The given task is solved as follows, a node of connection of elements consisting of at least two connecting elements is proposed. Each of the connecting elements, in turn, consists of at least two identical flat parts. The formation of each of the connecting elements from two parts allows for easy and at the same time strong fixation of the structural elements. One of the connecting elements on one side contains a central projection and at least two symmetrically located projections, on the opposite side the connecting element has a central longitudinal groove which forms two symmetrical longitudinal projections. The second of the connecting elements on one side has a central longitudinal groove and at least two symmetrically located protrusions. On the other side, the second connecting element has a central projection.
[0008] The central longitudinal grooves of both connecting elements provide the possibility of connecting the connecting elements one to one and forming a crossshaped junction of the connecting elements at its intersection.
[0009] Moreover, the protrusions of both connecting elements are made with the possibility of bending to fix the elements on the connection nodes.
[0010] In addition, the parts from which the connecting elements are formed, which in turn make up the element connection node, are made of sheet material, which allows you to repeatedly bend the protrusions of the connecting elements to ensure the possibility of collecting and disassembling the structural elements. Metal can be used as such material. The essence of the invention is explained by the drawings, which show the most convenient for understanding and implementation of the fixing element. Note that the presented drawings do not limit the implementation of the declared useful model, but are directed to the explanation of the technical solution.
[0011] Fig. 1. Details of connecting elements.
[0012] Fig. 2. The first connecting element.
[0013] Fig. 3. The second connecting element.
[0014] Fig. 4. The element connection node is formed.
[0015] Fig. 5. Fixation of structural elements at the junction of the elements.
[0016] Fig. 6. Fixation of structural elements at the junction of the elements.
[0017] Fig. 7. Fixation of structural elements at the junction of the elements.
[0018] The proposed element connection node consists of two connecting elements. Each of the connecting elements, in turn, consists of at least two identical flat parts (marked on the drawings with numbers 1 , 2, 3, 4). One of the connecting elements (5) on one side contains a central protrusion (7) and at least two symmetrically located protrusions (8), on the opposite side the connecting element has a central longitudinal groove (9) which forms two symmetrical longitudinal protrusions (10 ). The second of the connecting elements (6) on one side has a central longitudinal groove (11) and at least two symmetrically located protrusions (12). On the other side, the second connecting element has a central protrusion (13).
[0019] Form the element connection node as follows. The central longitudinal groove (11) of the second connecting element (6) is inserted into the central longitudinal groove (9) of the first of the connecting elements (5). The central longitudinal grooves of both connecting elements form a cross-shaped junction of the elements.
[0020] We will consider the use of the element connection node on an example.
[0021] The unit of connection of elements is formed from two connecting elements (5, 6), each of which, in turn, consists of two flat parts (1 , 2, 3, 4). One of the connecting elements (5) on one side contains a central protrusion (7) and at least two symmetrically located protrusions (8), on the opposite side the connecting element has a central longitudinal groove (9) which forms two symmetrical longitudinal protrusions (10 ). The second of the connecting elements (6) on one side has a central longitudinal groove (11) and at least two symmetrically located protrusions (12). On the other side, the second connecting element has a central protrusion (13).
[0022] The central longitudinal groove (11) of the second connecting element (6) is inserted into the central longitudinal groove (9) of the first of the connecting elements (5). The central longitudinal grooves of both connecting elements form a cross-shaped junction of the elements.
[0023] Two gears of different sizes (14, 15) were selected as structural elements. The holes on the gears ensure the entry of the protrusions of the connecting elements, namely, the larger gear (14) ensures the entry of the protrusions (8, 7, 12) of the resulting assembly of the connecting elements from the front side. The smaller gear (15) ensures the entry of the protrusions (10, 13) of the obtained unit of connection of elements from the opposite side.
[0024] After that, the structural elements (in our example, these are two gears) are fixed on the node of the connected elements by bending the protrusions (8, 12) from both the front side and the protrusion (10) from the opposite side.
[0025] The structural element formed in this way allows for fast, easy and at the same time strong connection of parts to each other in all directions and to ensure reliable fixation of parts in the process of assembly of assembly elements.
Claims
CLAIMS1. The unit of connection of elements having a cross-shaped cross-section, consisting of at least two connecting elements, which is characterized by the fact that one of the connecting elements on one side contains a central protrusion and at least two symmetrically located protrusions on the opposite side sides, the connecting element has a central longitudinal groove which forms two symmetrical longitudinal protrusions, the second of the connecting elements on one side has a central longitudinal groove and at least two symmetrically located protrusions, on the other hand, the second connecting element has a central protrusion, additionally each of the connecting elements consists of at least two identical flat parts.
2. The unit of connection of elements according to item 1 , which differs in that the parts from which the connecting elements are formed are made of sheet material, which allows for repeated bending of the protrusions of the connecting elements.
3. Node of connection of elements according to clause 2. which differs in that metal is used as the material from which the parts of the connecting elements are made.
Citation Information
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