RU2114461C1 - Joint of three mutually perpendicular plates - Google Patents

Abstract

FIELD: visual aids, solid and folding furniture, entertainment games for three-dimensional imagination, solid and folding packing with walls, articles which require connection of three mutually perpendicular plates. SUBSTANCE: device has plates 1, 2, 3 and unit for their relative movement with respect to each other, which has hole and cut in plates 1 and 2. EFFECT: increased functional capabilities. 8 dwg

Description

 The invention relates to compounds of three mutually perpendicular plates, in particular in visual aids that can be used in the educational process in the design of products, in the manufacture of toys, in the furniture industry (non-separable and folding furniture), in the production of folding containers.

 It is known the connection of three mutually perpendicular plates used in furniture - collapsible shelving (see ed. St. USSR N 1606756, CL F 16 B 12/42, A 47 B 47/03, 1990). The connection contains three mutually perpendicular plates (two walls of the rack and shelf) and a connecting element. A disadvantage of the known compound is the impossibility of its use in folding products. In addition, when disassembling the connection, the connecting element is disassembled into individual parts, which creates inconvenience during use.

 It is known the connection of three mutually perpendicular plates, used in visual aids on descriptive geometry and described in ed. USSR N 1541657, class G 09 B 23/04, 1990, which consists of three mutually perpendicular plates folding on one plane, thanks to external slots made on the opposite sides of one of the plates, and on the other - a figured hole in the form of two sectors opposite to the center of the plate while the diameter of the figured hole is made equal to or greater than the distance between the slots of the first plate. The above connection of three mutually perpendicular plates taken as a prototype.

 In addition to the above-mentioned slots, each plate connecting three mutually perpendicular plates has a slot, one end of which is connected to the edge of the plate by a slit, and the other end of the slot is not closer to the center of the plate from this edge.

 In the known joint, all three plates each have through slots on the corresponding edge. When assembling the compound, the edges of the plates formed by these slots are folded. This leads to a decrease in the reliability of the connection and to inconvenience of use, since the plates are deformed, with frequent assembly and disassembly, the plates are destroyed along the mating line, and plates made of flexible material do not retain flatness.

 In addition, the impossibility of making plates of rigid material, as well as the low reliability of the connection, limit the scope of use of the known compound.

 The proposed device solves the following problem: it ensures the reliability of the connection of three mutually perpendicular plates, ease of use, expanding the scope of use by reducing the number of external slots.

 The proposed connection of three mutually perpendicular plates differs from the prototype in that three mutually perpendicular plates divide the space into 4 octants, when two mutually perpendicular plates are located on one side of the third plate, and by means of mutual movement.

 These differences ensure the performance of plates of various materials, provide flatness of the plates or reduce deviation from flatness, and eliminate or reduce the deformation of the plates during assembly.

 In turn, this extends the use of the connection. The proposed connection can be used in products where it is necessary to fold three mutually perpendicular plates, for example, in visual aids, in folding toys, furniture, containers.

 Moreover, the proposed connection ensures the achievement of the technical result indicated above, and if it is necessary to divide the space into 8 octants, a similar connection is made of three mutually perpendicular plates on the other side of the third plate common to the two connections.

 The above allows us to conclude that the proposed compounds meet the criteria of the invention of "novelty."

 The proposed solution meets the condition of "inventive step", since no solutions have been found that have features that match the distinctive features of the proposed compounds, identified in comparison with the prototype, and ensure the achievement of the technical result indicated by the applicant.

 In FIG. 1 shows the connection of three mutually perpendicular plates, in axonometric projection; in FIG. 2 is a view A in FIG. 1 to the first plate (plates two and three are not shown); in FIG. 3 is a view B in FIG. 1 to the second plate (plates one and three are not shown); in FIG. 4 - axonometric projection of the connection of three mutually perpendicular plates with the faces of the cube; in FIG. 5 is a perspective view of a device with one proposed connection; in FIG. 6 is a perspective view of a device with two connections of three mutually perpendicular plates; in FIG. 7 is a perspective view of a device with two connections; in FIG. 8 is a perspective view of a device with multiple connections.

 The connection of three mutually perpendicular plates contains three mutually perpendicular plates 1, 2 and 3 and means for their mutual movement. The means for mutual movement of the plates is made in the form of an external slot 4 (see Fig. 2) on the plate 1 and a figured hole 5 (see Fig. 3) on the plate 2. Each plate 1 and 2 has its own side adjacent to the mutually perpendicular plate 3 connected to the latter with the possibility of rotation by connecting elements, for example, rings 6 (see Fig. 1) inserted into the holes 7 (see Fig. 2, 3) made in the plates 1-3.

 The figured hole on the plate 2 is made in the form of a sector, the intersection point of the radii of which is located at the intersection of the plates 1-3. The radius of the sector is made equal to or greater than the distance from the interface line of the first and third plates to the above-mentioned outer slot of the first plate, while the outer slot passes through the edge of the first plate remote from the above-mentioned interface line.

 For a better fit of the plates during their mutual movement of the plate 1 and 2 have grooves 8 (see Fig. 2, 3), which include the connecting ring 6.

 In FIG. 4, positions 9-11 show auxiliary plates, which, like parts of the plates 1-3, represent the faces of the cube, and the plates 1-3 are connected to each other by connecting elements 12 with glue.

 In FIG. 5-7, devices of flexible plates with one or two connections of three mutually perpendicular plates are shown and reamers are shown, where a dash-dot line with two points shows fold lines. The scans show plates 1-3, and positions 13-15 show the connecting elements of plates 1-3. Positions 16-18 show the slots that allow, during assembly of the joint, to place the first plate between the third and second plate.

 In FIG. 8 shows a device with rigid plates, where several connections of three mutually perpendicular plates are used, when the plates 1 and 3 are connected by flexible elements 19 made integrally with the plates 1 and 3, and the plates 2 and 3 are connected by half rings 20.

 The connection of three mutually perpendicular plates is assembled and folded as follows. The plate 1 is combined with the plate 3 along the horizontal interface line of the plates 1 and 3. Align the holes 7 on the plates 1 and 3 and insert the connecting rings 6. Then, the plates 2 and 3 are aligned along the vertical interface line of the plates 2 and 3 so that the sector is under the horizontal interface line. Then the holes 7 are combined on the plates 2 and 3 and the connecting rings 6 are inserted into the holes. Next, the plate 2 is moved perpendicular to the plate 3, then the plate 1 is perpendicular to the plate 3. In this case, the plate 2 enters the slot 4 of the plate 1. The connection is assembled.

 The connection develops as follows. The plate 1 is moved clockwise to align with the plate 3, then the plate 2 is moved clockwise or counterclockwise to align with the plates 1 and 3.

 The sequence of assembly and folding of plates of flexible material is similar to the assembly and folding of plates of rigid material. Thus, the assembled connection acquires the rigidity of a bulk product, which ensures reliable connections during operation. In addition, the operations involved in assembling and folding the joints are simple, and the folded joint is compact, which provides ease of use.

 When using the connection of three mutually perpendicular plates in a visual drawing aid, the object is placed inside the cube (see Fig. 4) and marked on its faces of the projection of the object, and then the faces of the cube are moved to align with plate 3 and get a drawing of the object, consisting of six images.

 When using the connection of three mutually perpendicular plates in a visual aid for descriptive geometry before assembly, the plates (see Fig. 7) are marked with the horizontal, frontal and profile planes, the origin and coordinate axes. For the frontal (V) plane, use plate 3 to connect three mutually perpendicular plates, for horizontal (H) - plate 1, for profile (W) - plate 2. It is allowed to use plate 2 for the horizontal plane, and for profile - plate 1.

 Having placed an object in one of the octant plates formed by the plates, they are marked on the projection plates, and then, having removed the object, the plates are moved on one plane: horizontal plates 1 are moved clockwise to the front plate 3, and the profile plates 2 are moved counterclockwise to the front plate 3, converting the spatial image into a flat drawing.

 The offered visual aids are compact, accessible to each student. They are easily converted from volumetric to planar and vice versa.

Claims (1)

 The connection of three mutually perpendicular plates, consisting of three mutually perpendicular plates relative to the lines of their conjugation and a means of their mutual movement for the possibility of rotation of the plates in one plane, including an external slot made on the first of the plates, an opening in the form of a sector, made on the second plate, placed perpendicular to said outer slot of the first plate, characterized in that the first and second plates perpendicular to each other protrude on one side relative to with the formation of four octants and connected to the latter with the possibility of rotation relative to their conjugation lines, the radius of the sector is equal to or greater than the distance from the conjugation line of the first and third plates to the specified external slot passing through the edge of the first plate remote from the said conjugation line, this center of the sector is located at the intersection of the interface lines of the plates.

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