Modular building system

Abstract

The present invention relates to a modular building system (100) comprising a set|of frame parts configured to be connected to each other so as to form a building (1 ).The set of frame parts comprises a plurality of body frame parts (110) having a longitudinal extension and a plurality of corner frame parts (120). The|modular building system (100) further comprises a plurality of connecting|members (130) and a plurality of assembly pins (140).

Description

[0001] MODULAR BUILDING SYSTEM

[0002] Field of the disclosure

[0003] The invention relates to a modular building system.

[0004] Technical Background

[0005] Today most buildings are constructed using large and bulky components, which are assembled either at the building site or in factories. To handle the material and assemble the building, it is most often necessary to use specially adapted transportation, lifting aids, and an assortment of tools.

[0006] Due to the bulkiness of the materials, transportation is often insufficient, resulting in inevitable transport of air. This leads to increased costs and non-eco-friendly practices.

[0007] Moreover, conventional buildings are assembled in such a way that it is impossible to reuse most of the building material when the structure is to be removed. This puts significant pressure on the environment.

[0008] Another critical concern revolves around temporary structures, which serve as immediate solutions during unfortunate events like natural disasters and conflict-driven migration. These structures are designed for temporary housing, service facilities, or storage. While they are intended to be easily transportable and quickly assembled, there’s a recurring issue: they tend to deteriorate rapidly and become substandard over time.

[0009] Furthermore, the building industry faces immense time and price pressures. While there is a need to reduce construction times, there is no room for compromise in terms of quality and safety. Given these considerations, there is a clear need for a building system that can be transported and assembled efficiently, while minimizing its environmental impact.

[0010] Summary of the disclosure

[0011] It is an object of the present disclosure to alleviate at least some of the aforementioned issues by providing a building system which: is robust, easy to handle during transportation and assembly, enables reuse of building material, and permits adaptivity.

[0012] This object has been achieved by a modular building system. The modular building system comprises: a set of frame parts configured to be connected to each other so as to form a building. The set of frame parts comprises a plurality of body frame parts having a longitudinal extension, and a plurality of corner frame parts. The modular building system further comprises a plurality of connecting members, each connecting member having an elongated body portion extending between two end portions, wherein each end portion comprises a first threaded portion extending in a direction being parallel to the extension of the elongated body portion. The building system comprises a plurality of assembly pins comprising at least one second threaded portion configured to be engaged with the first threaded portion of a respective connecting member. Each body frame part and corner frame part comprise a first and a second connecting portion, each connecting portion comprising at least one assembly groove, at least one assembly protrusion, and at least one assembly aperture. In an assembled state of the building system, for each body frame part and corner frame part, the assembly protrusion of a first body frame part or a first corner frame part is positioned in the assembly groove of a second body frame part or a second corner frame part , and the assembly protrusion of the second body frame part or a second corner frame part is positioned in the assembly groove of the first body frame part or the first corner frame part. The respective assembly pin is arranged in a respective assembly aperture of the first body frame part or the first corner frame part, and the second body frame part or the second corner frame part, and wherein the respective second treaded portion of the assembly pin is engaged with the first threaded portion of a respective connecting member such that the body frame parts and corner frame parts of the set of frame parts are locked to each other.

[0013] An advantage of the modular building system is that it is in fact modular. To specify, depending on how many frame parts the set of frame parts comprises and which type of frame parts that are used result in different building designs. As an example, the length and width of the building may be altered by adding, or removing, a number of body frame parts and corner frame parts. Consequently, the number of connecting members and assembly pins will also be altered. As another example, the design of the roof may be changed by replacing the corner frame parts of a first type which have a first angle to a second type of corner frame parts which have a second angle.

[0014] It is to be noted that a plurality of frame parts, i.e. , a plurality of body frame parts and a plurality of corner frame parts, may together form a first frame section. Thereafter, additional frame sections may be formed by the same number and types of frame parts as the first frame section.

[0015] The set of frame parts may together form at least two frame sections.

[0016] The frame sections are connected to each other by the connecting members. Put differently, in an assembled state of the building system, body frame parts and corner frame parts are assembled and locked together by having an assembly pin extending through two assembly apertures of two separate frame parts and wherein a respective connecting member is engaged with the second threaded portion of a respective assembly pin, thereby clamping the two frame parts together. As the connecting member comprises two threaded portions, it may be engaged with a respective assembly pin at each end portion thereof. In such a case, the connecting member is permitted to engage with a first and a second assembly pin so as to connect a first and a second frame section.

[0017] The term “locked” in the context of the present invention means that the respective frame parts are held in position relative to each other. To further specify, the frame parts are locked in relation to each other by placing the respective assembly protrusion in a respective assembly groove and thereafter clamping the frame parts together by engaging two connecting members with one assembly pin, arranged in the assembly apertures of the two frame parts. When the two connecting members are engaged with the assembly pin the two frame parts are sandwiched between two separate connecting members. The frame parts may be “unlocked” by disengaging the connecting members from the assembly pin and removing the assembly protrusion from the assembly groove of another frame part.

[0018] An advantage of the present invention is that the building system can be assembled without the need of any tools or additional fastening means such as screws and nails. The frame parts and the connecting members are prefabricated with the required assembly means, i.e., the assembly grooves, assembly protrusions, assembly apertures, and threaded portions. The assembly pin may be engaged with the first threaded portion of the connecting member by hand and inserted into the assembly apertures of two frame parts, thereafter a second connecting member may be engaged, by hand, with the assembly pin. Thus, no additional screws, nails or other fastening means are required to assemble the modular building system of the present invention. Due to this, the building system is relatively easy to assemble, and the user which is to assemble the building does not need to have any experience of construction to be able to assemble the building system of the present invention.

[0019] All the details of the frame parts may be fabricated by means of a Computer Numerical Control, CNC, machine. It is to be noted that the plurality of body frame parts of the set of frame parts may be of different types. To clarify, some of the plurality of body frame parts may be a first type of body frame parts having e.g., a first length and / or a first width, and some of the plurality of body frame parts may be of a second type of body frame parts having e.g., a second length and / or a second width.

[0020] It is to be understood that the set of frame parts may comprise a third, fourth, fifth, etc. type of frame parts, whereas the different type may have differentiation in e.g., dimensions or number of assembly apertures.

[0021] Similarly, the plurality of corner frame parts of the set of frame parts may be of different types. Some of the plurality of corner frame parts may be of a first type having e.g., a first angle and / or a first length, and some of the plurality of corner frame parts may be of a second type of corner frame parts having e.g., a second angle and / or a second length.

[0022] Similarly, the plurality of connecting members may be of different types. Some of the plurality of connecting members may be of a first type having e.g., a first length, and some of the plurality of connecting members may be of a second type of corner frame parts having e.g., a second length.

[0023] To further exemplify, in one alternative embodiment of the modular building system, the modular building may be designed with a triangularly shaped roof. The triangularly shaped roof may comprise a first type of corner frame parts which together form the ridge of the roof and a second type of corner frame parts which forms the corner between the roof and the wall of the building. The first type of corner frame parts may provide a corner having an angle of 110° and the second type of corner frame parts may provide a corner having an angle of 125°. If the roof instead is desired to be a flat roof, the first type of corner frame parts may be removed, and the second type of corner frame parts may be changed to a third type of corner frame parts having an angle of 90°. Each body frame part comprises a first and a second connecting portion. The first and second connecting portion of each of the body frame parts may be arranged on opposite ends of the body frame part.

[0024] Each corner frame part comprises a first and a second connecting portion. The first and second connecting portion may be arranged in an angle relative to each other such that e.g., a first and a second body frame part can be arranged in an angle relative to each other by being connected to a respective first or second connecting portion of one corner frame part.

[0025] The at least one corner frame part may comprise a first section and a second section being arranged at an angle relative each other. The first and second section may be elongated sections. The angle may be an acute or obtuse angle. Another type of corner frame parts may have an angle being 90°.

[0026] Having corner frame parts of different types provides the possibility of construction buildings with different corner portions.

[0027] Each corner frame part may comprise a third assembly aperture positioned at a corner portion of said corner frame part, the corner portion being located at an intersection between the first and second section of said corner frame part.

[0028] As specified, the first and second connecting portion of each body frame part has an assembly groove and an assembly protrusion. The assembly groove and the assembly protrusion may extend transversally relative to the longitudinal extension of the respective body frame part.

[0029] The first and second connecting portion of each corner frame part has an assembly groove and an assembly protrusion, the assembly groove and the assembly protrusion may extend transversally relative to the longitudinal extension of the corner frame part. Put in other words, the assembly groove and the assembly protrusion may extend transversally relative to the longitudinal extension of the respective first section or the respective second section.

[0030] The assembly groove of each connecting portion of each body frame part and corner frame part may have a transversal and longitudinal width extension being equal to or slightly greater than the transversal and longitudinal width extension of each assembly protrusion. The longitudinal width extension is to be understood as the width of the assembly groove and assembly protrusion which extends in parallel to the longitudinal extension of the body frame part or the respective first or second section of the respective corner frame part. Consequently, the transversal width extension of the respective assembly groove and the respective assembly protrusion is parallel to a transversal extension of the body frame part or the respective first or second section of the respective corner frame part.

[0031] By having the transversal and longitudinal width extension of the assembly grooves being equal to or, preferably, slightly greater than the transversal and longitudinal width extension of the assembly protrusions the assembly protrusions can be placed into the respective assembly groove with little force and preferably with as little play therebetween as possible. As a result, the assembly groove and the therein located assembly protrusion are locked in the x-direction, i.e. , restricted from motion along the x-axis.

[0032] The longitudinal width extension of the assembly groove of each body frame part and each corner frame part may be in the range of 10 mm to 50 mm. The longitudinal width extension of the assembly groove of each frame part may be slightly greater than the longitudinal width extension of the assembly protrusion in the range of 0,5 mm to 3 mm.

[0033] Each assembly groove may have a depth such that an assembly protrusion may be positioned in said assembly groove such that a first frame part and a second frame part are in flush alignment. The depth of the assembly groove is defined in an extension being perpendicular to the longitudinal and the transversal extension of the corresponding frame part. Thus, by having the depth of the assembly groove corresponding to a protrusion height of the assembly protrusion, it allows for precise alignment of the frame parts, resulting in a flush connection. The height of the assembly protrusion is defined in an extension being perpendicular to the longitudinal and the transversal extension of the corresponding frame part.

[0034] Preferably, each assembly groove and each assembly protrusion of a set of frame parts have the same dimensions, i.e., all assembly grooves have the same dimensions and all assembly protrusion have the same dimensions. As a result, any corner frame part or body frame part may be assembled with any other corner frame part or body frame part.

[0035] One type of body frame parts may comprise a third connecting portion arranged along the longitudinal extension of the body frame part, the third connecting portion comprising at least one assembly groove, at least one assembly protrusion, and at least one assembly aperture. As mentioned, the at least one assembly groove and the at least one assembly protrusion of the first and second connecting portion of the body frame part may extend in a first direction. The at least one assembly groove and the at least one assembly protrusion of the third connecting portion of the body frame part may extend in a second direction, the second direction being transverse to the first direction. It is to be noted that the third connecting portion permits the body frame part to be connected to three other frame parts. The type of body frame part having three connecting portions may be referred to a frame part being a combination of an elongated body frame part and a corner frame part.

[0036] The plurality of assembly pins may have an elongated extension, extending between a first and a second end portion of the assembly pin. In one alternative embodiment, the second threaded portion of the assembly pin may extend along the entire elongated extension. In another alternative embodiment, the second threaded portion extends partially along the elongated extension such that each first and second end portion of said plurality of assembly pins may comprise a second threaded portion configured to be engaged with a respective first threaded portion of a respective connecting member.

[0037] The at least one second threaded portion of the assembly pin may be arranged on the outside of a circumferential enveloping surface of the assembly pin. In this case, the assembly pin has a threaded section, similar to a screw, that wraps around the outer surface of the pin. Such a threaded portion allows the pin to engage with a corresponding threaded hole.

[0038] In another alternative embodiment, the assembly pin may have threaded receiving openings at both ends configured to receive a threaded portion of the connecting member.

[0039] The connecting member comprises a first threaded portion. The first threaded portion may be a threaded protruding portion or a threaded receiving opening.

[0040] The plurality of assembly pins may have an elongated extension which extends such that a second threaded portion of the first end portion of the assembly pin is engaged with a first threaded portion of a first connecting member and the pin thereafter extends through an assembly aperture of a first body frame part or a first corner frame part and through a assembly aperture of a second body frame part or a second corner frame part, thereafter the second threaded portion of the second end portion of the assembly pin is engaged with a first threaded potion of a second connecting member.

[0041] By having the assembly pin engaged in two separate connection members and extending through two assembly apertures of two separate frame parts, the two separate frame parts are sandwiched between the first and second connecting member and are thereby locked in placed in relation to each other. The plurality of assembly pins may have the same dimension. This is an advantage since all parts of the modular building system can be assembled with the same type of assembly pin. However, the assembly pin may have different dimensions, such as different length or different thread dimensions.

[0042] The plurality of assembly pins may be of the same material or be of different materials relive to each other.

[0043] The plurality of assembly pins may be made of e.g., metal, wood, or plastic, preferably metal.

[0044] The plurality of assembly pins may be made of e.g., galvanized steel.

[0045] The modular building system may further comprise a plurality of wall panels, wherein the wall panels are configured to be clamped between at least two body frame parts and / or at least two corner frame parts. The wall panels may be of a material suitable for constituting walls of a building, e.g., drywall, wood, or wood fiber. The wall panels may be made of plastic or glass. It is to be noted that the modular building system may comprise a first type of wall panels and a second type of wall panels. The first type of wall panels may be panels made of e.g., wood, and the second type of wall panels may be made of e.g., glass.

[0046] The term “clamped” intends to imply that when the modular building system is in an assembled state, the wall panels are positioned between two frame sections which are held together by a plurality of connecting members and the wall panels are thus exposed to a clamping force.

[0047] Each body frame part and / or corner frame part may comprise at least one panel assembly groove extending along the longitudinal extension of the body frame part and the corner frame part, wherein in an assembled state of the building system, each wall panel is arranged in at least two respective panel assembly grooves of at least two opposing body frame parts and / or corner frame parts. It is to be noted that the at least one panel assembly groove of a first body frame part and / or a first corner frame part may be aligned with a panel assembly groove of a second body frame part and / or second corner frame part which is assembled to the first body frame part and / or a first corner frame part such that the panel assembly grooves are linear in relation to each other.

[0048] By referring to that the wall panel may be arranged in at least two respective panel assembly grooves of at least two opposing body frame parts and / or corner frame parts means that the wall panel may have a longitudinal extension being greater than the longitudinal extension of the body frame panels or the corner frame panels. In such a case the wall panel can be arranged in aligning assembly grooves of several frame parts.

[0049] It is to be noted that the type of body frame parts having a third connecting portion may have an additional panel assembly groove which extends along the extension of the third connecting portion and is perpendicular the longitudinal extension of the body frame part.

[0050] The modular building system may further comprise a terminal connecting member comprising a threaded portion at one end portion thereof, the threaded portion of the terminal connecting member is configured to be engaged with the treaded portion of a respective assembly pin.

[0051] The terminal connecting member may be used at the outermost frame sections. To further specify, the terminal connecting member may be used together with a connecting member at a location where two frame parts are to be assembled and locked in relation to each other but where it is not desired, in one direction, to further have a connecting member engaging with a second assembly pin. Thus, the terminal connecting member has the same function as the connecting member, i.e. , to engage with an assembly pin to lock two frame parts together. However, the terminal connecting member does only have one threaded portion and can therefore not be engaged with two separate assembly pins. It is to be noted that any connecting member may be used as a terminal connecting member. In such a case, the connecting member is only engaged with one assembly pin at one of its threaded end portions.

[0052] An advantage of having the terminal connecting member is that the terminal connecting member allows for a more appealing design. Using the connecting members at the ends of the building structure would leave one of the threaded portions visible to the user, and thus impair the appearance and being subjected to dirt and moisture.

[0053] Each body frame part and corner frame part may comprise a first and a second main side, the first main side being opposite the second main side. The at least one assembly groove and the at least one assembly protrusion of the first connecting portion may be arranged on the first main side, and the at least one assembly groove and the at least one assembly protrusion of the second connecting portion may be arranged on the second main side. In such a case, the at least one assembly groove and the at least one assembly protrusion of the first connecting portion will face one direction, and the at least one assembly groove and the at least one assembly protrusion of the second connecting portion will face another direction being an opposite direction.

[0054] It is to be noted that the first and second main sides may also be referred to as main surfaces.

[0055] In an alternative embodiment, the at least one assembly groove and the at least one assembly protrusion of the first and second connecting portion may be arranged on the same main side, i.e. , either on the first main side or the second main side. In such a case, the at least one assembly groove and the at least one assembly protrusion of the first connecting portion and the at least one assembly groove and the at least one assembly protrusion of the second connecting portion will face the same direction. The first and / or the second main sides may have one or more panel assembly grooves.

[0056] The longitudinal extension or the transversal extension of each frame part of the set of frame parts is at most 1200 mm, and wherein the other dimension is at most 800 mm. By having the frame parts not exceeding these dimensions, the frame parts may be laid flat on to a standardized EUR-pallet, also referred to as a Euro-pallet. Having a building which is constructed by a building system consisting of parts that are of a size such that they fit onto a standardized pallet provides for easy handling of the parts during e.g., transportation. Additionally, by being able to stack the parts of the building system in a flat-laid state, the space usage is optimized and thereby enhances the transportation sufficiency.

[0057] It is to be noted that all frame parts and connecting members may be made out of wood. However, the frame parts and the connecting members may be made of any other suitable material, such as plastic or metal. It is to be understood that all frame parts and connecting members may be of the same material, or they may be made out of different materials.

[0058] It may be noted that the use of terms “first”, “second”, “third”, “fourth”, “fifth”, etc. are mainly to be seen as labels facilitating reading and that it does not necessarily mean that there need to be all the intervening numbers of portions present. It may e.g. be noted that it is contemplated to have a design where there is a first portion, a second portion, a third portion and a fifth portion, with the fourth portion being omitted. However, to facilitate reading, we have consistently used the numbering first, second, third, fourth, etc., as labels, and in a sense based on an embodiment including all conceivable portions.

[0059] Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a / an / the [element, device, component, means, step, etc]" are to be interpreted openly as referring to at least one instance of said element, device, component, means, step, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.

[0060] Brief description of the drawings

[0061] The disclosure will by way of example be described in more detail with reference to the appended schematic drawings, which shows exemplary embodiments of the disclosure, wherein:

[0062] Figure 1 discloses a schematic view of a building constructed of the modular building system.

[0063] Figure 2a discloses a schematic view of a first and a second body frame part which are assembled together.

[0064] Figure 2b-d discloses an exploded view of a first, second and third corner portion of the building as shown in Figure 1 .

[0065] Figure 3a discloses a top view and a perspective view of each type of body frame part having a first and a second connecting portion.

[0066] Figure 3b discloses a top view and a perspective view of each type of body frame part having a first, a second, and a third connecting portion.

[0067] Figure 3c discloses the dimensions of the assembly groove and assembly protrusion.

[0068] Figure 4a discloses a top view of each type of corner frame parts.

[0069] Figure 4b discloses a perspective view of each type of corner frame parts.

[0070] Figure 5 discloses a top view of each type of connecting member. Figure 6 discloses a top view and a side view of a wall panel.

[0071] Figure 7a-b discloses an exploded view of assembled frame parts and wall panels.

[0072] Figure 8a-b discloses a schematic view of two alternative buildings constructed of the modular building system.

[0073] Detailed description of embodiments

[0074] Fig. 1 discloses a modular building system 100 comprising a set of frame parts 110, 120 connected to each other by the use of a plurality of connecting members 130 and assembly pins 140. In an assembled state of the building system 100, as seen in Fig. 1 , for each body frame part 110 and corner frame part 120, the assembly protrusion 113a-b 123a-b of a first body frame part 110’ or a first corner frame part 120’ is positioned in the assembly groove 112a-b, 122a-b of a second body frame part 110” or a second corner frame part 120”, and the assembly protrusion 113a-b 123a-b of the second body frame part 110” or a second corner frame part 120” is positioned in the assembly groove 112a-b, 122a-b of the first body frame part 110’ or the first corner frame part 120’. The respective assembly pin 140 is arranged in a respective assembly aperture 114a-b, 124a-b of the first body frame part 110’ and the second body frame part 110” or the first corner frame part 120’, and wherein the respective treaded portion 141a-b of the assembly pin 140 is engaged with said threaded portion 133a-b of a respective connecting member 130 such that the body frame parts 110 and corner frame parts 120 of the set of frame parts are locked to each other and forms a building 1 .

[0075] As seen in Fig. 1 , a plurality of frame parts, i.e., a plurality of body frame parts 110 and a plurality of corner frame parts 120, together form a first frame section 101a. Thereafter, additional frame sections 101 b-i are formed by the same number and types of frame parts as the first frame section 101a. The frame sections 101a-i are connected to each other by a plurality of connecting members 130, as shown in Fig.1. With reference to Figs, 2a-d, it is disclosed in more detail how the frame parts are connected and locked to each other.

[0076] Fig. 2a discloses a first and a second body frame part 110’, 110” directly connected to each other. The assembly protrusion 113a-b of the first and second connecting portion 111 a-b of the first and a second body frame parts 110’, 110” are positioned in a respective assembly groove 112a-b of the other frame part.

[0077] The assembly pin 140, as shown in Fig. 2a, extends through the assembly aperture 114a-b of the first and second body frame parts 110’, 110”.

[0078] As clearly shown in Fig. 2a, the assembly groove 112a-b have a depth such that the assembly protrusion 113a-b can be positioned in said assembly groove 112a-b such that the first body frame part 110’ and the second body frame part 110” are in flush alignment. Thus, by having the depth of the assembly groove corresponding to a protrusion height of the assembly protrusion 113a-b, it allows for precise alignment of the frame parts, resulting in a flush connection. This is equally applicable when a body frame part 110 is to be assembled with a corner frame part 120.

[0079] Figs. 2b-d show exploded views of three different corner portions of the modular building system 100, i. e. the corner portions of the first frame section 101a. The exploded view shown in Fig. 2b, discloses a third type 120f of the corner frame part 120 which comprises a first and a second connecting portion 121 a-b being arranged in a 90° angle in relation to each other such that a right-angle corner is formed. Fig. 2c and Fig. 2d shown a second type 120d of the corner frame part 120 located at two different corner portions of the building 1 such that a roof section 102 has trusses formed as an isosceles triangle.

[0080] The corner frame parts 120, as shown in Figs. 2c-2d, are configured to be connected to a first and second body frame part 110’, 110” by having the assembly protrusion 123a-b of the first and second connecting portion 121a-b of the corner frame part 120 positioned in a respective assembly groove 112a-b of the first and second body frame part 110’, 110”. When the assembly protrusion 123a-b of the corner frame part 120 is positioned in the respective assembly groove 112a-b of the first and second body frame part 110’, 110” the assembly apertures 114a-b, 124a-b of the frame parts are aligned. When two separate respective assembly apertures 114a-b, 124a-b are aligned, an assembly pin 140 can be inserted into the e.g., the first assembly apertures 114a of the first body frame part 110’ and the first assembly apertures 124a of the corner frame part 120.

[0081] The respective assembly pin 140, as shown in Figs 2b-d, is configured to be arranged in the assembly aperture 124a-b of each connecting portion 121a-b of the corner frame part 120 and thereafter extend through either the assembly aperture 114a of the first connecting portion 111a of the first body frame part 110’ or through the assembly aperture 114b of the second connecting portion 111 b of the second frame part 110”. Thereafter are the assembly pins 140 configured to be engaged with a respective threaded portion 133a-b of two separate connecting members 130, or as shown in Fig. 2a-c, with a first threaded portion 133a of a connecting member 130 and a third threaded portion 161 of a terminal connecting member 160. When the assembly pin 140 is engaged with the first / third threaded portion 133a-b, 161 of two connecting members 130 or terminal connecting members 160, the two frame parts are sandwiched between the two separate connecting members 130, 160 and thereby clamped and locked together.

[0082] As the connecting member 130 comprises two first threaded portions 133a-b, as shown in Fig. 6, it is enabled to engaged with a respective assembly pin 140 at each end portion 132a-b thereof. In such a case, the connecting member 130 is permitted to engage with a first and a second assembly pin 140 so as to connect a first and a second frame section 101a-b. With reference to Fig. 3a, different types 110a-d of body frame parts 110 are shown. Common for all types of body frame parts is that they all comprise a first and a second connecting portion 111a-b, wherein the first and second connecting portion 111 a-b of each of the body frame parts 110 are arranged on opposite ends of the body frame part 110. The first and second connecting portion 111a-b of each body frame part 110, as shown in detail in Fig. 3, have an assembly groove 112a-b and an assembly protrusion 113a-b. The assembly groove 112a-b and an assembly protrusion 113a-b extend transversally relative to the longitudinal extension of the respective body frame part 110.

[0083] The different body frame types 110a-d, as shown in Fig.3a, differ in relation to each other in that they have different widths, lengths, numbers of assembly apertures 114a-b, and whether they comprise panel assembly groove 115a-b or not. It is to be noted that the plurality of body frame parts of the set of frame parts may be of different types. One type of body frame parts 110 may be a smooth body frame part 110a-b. In Fig. 3, the smooth body frame part is shown in two types, a wider smooth body frame part 110a having two assembly aperture 114a-b at each connecting portion 111a-b, and a narrower smooth body frame part 110b having one assembly aperture 114a-b at each connecting portion 111a-b.

[0084] Fig. 3a further discloses body frame part types 110c-d comprising panel assembly grooves 115a-b. The panel assembly grooves 115a-b extend along the longitudinal extension of the body frame part 110, wherein in an assembled state of the building system 100, each wall panel 150 is arranged in at least two respective panel assembly grooves 115a-b, 128a-b of at least two opposing body frame parts 110 and / or corner frame parts 120. As shown in Figs. 1 , 2a-d, and 9a-b, the panel assembly grooves 115a-b, 128a-b of a first body frame part 110 and / or a first corner frame part 120 are aligned with a panel assembly groove 115a-b, 128a-b of a second body frame part 110 and / or second corner frame part 120 which is assembled to the first body frame part 110 and / or a first corner frame part 120 such that the panel assembly grooves 115a-b, 128a-b are linear in relation to each other.

[0085] By referring to that the wall panel 150 may be arranged in at least two respective panel assembly grooves 115a-b, 128a-b of at least two opposing body frame parts 110 and / or corner frame parts 120 means that the wall panel 150 may have a longitudinal extension being greater than the longitudinal extension of the body frame panels 110 or the corner frame panels 120. In such a case the wall panel 150 can be arranged in aligning assembly grooves 115a-b, 128a-b of several frame parts.

[0086] With reference to Fig. 3b, other types 110e-h of body frame parts 110 are shown. The body frame parts shown in Fig. 3b comprise a third connecting portion 111c arranged along the longitudinal extension of the body frame part 110, the third connecting portion 111c comprising an assembly groove 112c, an assembly protrusion 113c, and an assembly aperture 114c. However, it is to be noted that the third connecting portion 111c, as well as the first and second connecting portion 111 a-b of a body frame part, can comprise more than one assembly groove 112a-c, assembly protrusion 113a- c, and assembly aperture 114a-c.

[0087] The assembly groove 112a-b and the assembly protrusion 113a-b of the first and second connecting portion 111 a-b of the body frame part 110 extend in a first direction, and wherein the assembly groove 112c and the assembly protrusion 113c of the third connecting portion 111c of the body frame part 110 extend in a second direction, the second direction being transverse to the first direction. It is to be noted that the third connecting portion 111c permits the body frame part 110 to be connected to three other frame parts. The type of body frame part 110e-h having three connecting portions may be referred to a frame part being a combination of an elongated body frame part 110 and a corner frame part 120. The body frame types 110e-h, as shown in Fig.3b, differ in relation to each other in that they have different widths, lengths, and numbers of assembly apertures 114a-b.

[0088] The type of body frame parts 110e-h having a third connecting portion 111c have an additional panel assembly groove 115c which extends along the extension of the third connecting portion 111c and is perpendicular the longitudinal extension of the body frame part 110, as shown in Fig.3b.

[0089] With reference to Fig. 3c, the dimensions of the assembly groove 112a-b and an assembly protrusion 113a-b of a body frame part 110 is shown. The dimensions as shown in Fig. 3c, relating to a body frame part 110, are equally applicable to the dimensions of the assembly grooves 122a- b and an assembly protrusions 123a-b of the corner frame parts 120. The assembly groove 112a-b, 122a-b of each connecting portion 111 a-b, 121a-b of each body frame part 110 and corner frame part 120 have a longitudinal width extension W1 being equal to or slightly greater than the longitudinal width extension W2 of each assembly protrusion 113a-b, 123a-b. The longitudinal width extension W1 , W2 is to be understood as the width of the assembly groove 112a-b, 122a-b and assembly protrusion 113a-b, 123a-b which extends in parallel to the longitudinal extension of the body frame part 110 or the respective first or second section 125a-b of the respective corner frame part 120. Consequently, the transversal width extension of the respective assembly groove 112a-b, 122a-b and the respective assembly protrusion 113a-b, 123a-b is parallel to a transversal extension of the body frame part 110 or the respective first or second section 125a-b of the respective corner frame part 120. As at least shown in Figs. 3a-4b, the transversal width extension of the respective assembly groove 112a-b, 122a- b and the respective assembly protrusion 113a-b, 123a-b of each frame part is equal to the transversal extension of the respective frame part.

[0090] The assembly groove 112a-b, 122a-b and assembly protrusion 113a-b, 123a-b of each frame part as shown in Figs. 3a-4b, have the same dimensions in the longitudinal width extension W1 , W2, i.e., all assembly grooves 112a-b, 122a-b have the same longitudinal width extension W1 , and all assembly protrusion 113a-b, 123a-b have the same longitudinal width extension W2. As a result, any corner frame part 120 or body frame part 110 may be assembled with any other corner frame part 120 or body frame part 110.

[0091] As above mentioned in relation to Fig. 2a, the assembly groove 112a-b have a depth such that the assembly protrusion 113a-b can be positioned in said assembly groove 112a-b such that the first body frame part 110’ and the second body frame part 110” are in flush alignment. To achieve flush alignment, the protrusion height D2 as shown in Fig. 3c is equal to the depth of the assembly groove 112a-b, 122a-b of the frame part.

[0092] Fig. 3c show the first and second connecting portion 111a-b of the body frame part 110. The total height D1 of the body frame part is the sum of a second and third height D2, D3. The total height D1 of the body frame part 110 may be in the range of 20 mm to 60 mm, preferably 30 mm to 50 mm. It is to be understood that the above discussed dimensions in relation to the body frame part 110 are equally applicable in relation to the corner frame part 120.

[0093] With reference to Figs. 4a-b, different types 120a-g of corner frame parts 120 are shown. Each type of corner frame part 120a-g comprises a first and a second connecting portion 121a-b. The first and second connecting portion 121a-b are arranged in an angle v relative to each other such that e.g., a first and a second body frame part 110’, 110” can be arranged in an angle relative to each other by being connected to a respective first or second connecting portion 121a-b of one corner frame part 120.

[0094] Commonly for all types of corner frame parts 120a-g, is that they comprise a first section 125a and a second section 125b being arranged at an angle v relative each other. The first and second section 125a-b being elongated sections. As shown in Fig. 5, the angle v can be an acute or an obtuse angle forming corner frame parts 120 of a first or a second type 120a- e. Another type 120f-g of corner frame parts 120, i.e., a third type, have an angle v being 90°.

[0095] By having corner frame parts 120 of different types 120a-g provides the possibility of construction buildings 1 , T, 1” with different corner portions.

[0096] Some of the corner frame part types 120a-g shown in Figs. 4a-b, comprise a third assembly aperture 124c positioned at a corner portion 126 of each corner frame part 120, the corner portion 126 being located at an intersection between the first and second section 125a-b of the corner frame part 120. The third assembly aperture 124c of the corner frame part 120 enables an additional connecting member 130 to be arranged between two frame sections 101 a-i at each corner portion of the modular building structure 100, as especially seen in Fig. 1 and Figs. 8a-b. The additional connecting member at each corner portion of the modular building structure 100 may enhance the stability of the structure.

[0097] Figs. 4a-b further disclose end frame parts 170. The end frame parts 170 are shown in two different types of end frame parts 170a-b. Common for both end frame parts is that they comprise one connecting portion 171. The connecting portion comprising an assembly groove 172, an assembly protrusion 173, and at least one assembly aperture 174.

[0098] Each body frame part 110 and corner frame part 120 comprises a first and a second main side 116a-b, 127a-b. The first and second main sides may also be referred to as main surfaces. The first main side 116a, 127a is opposite the second main side 116b, 127b. The at least one assembly groove 112a-b, 122a-b and the at least one assembly protrusion 113a-b 123a-b of the first connecting portion 111a, 121a is arranged on the first main side 116a, 127a, and the at least one assembly groove 112a-b, 122a-b and the at least one assembly protrusion 113a-b 123a-b of the second connecting portion 111 b, 121 b is arranged on the second main side 116b, 127b.

[0099] With reference to Fig. 5, different types of connecting members 130 are shown. The difference between the types of connecting members 130 is the length. Each connecting member 130 has an elongated body portion 131 extending between two end portions 132a-b, wherein each end portion 132a- b comprises a first threaded portion 133a-b extending in a direction being parallel to the extension of the elongated body portion 131 .

[0100] The different types of connecting members 130 as shown in Fig. 5 have a first threaded portion 133a-b being a threaded receiving portion.

[0101] The terminal connecting member 160 is showed in detail in Fig. 5. The terminal connecting member 160 comprises a third threaded portion 161 at one end portion 162 thereof, the third threaded portion 161 of the terminal connecting member 160 is configured to be engaged with the second treaded portion 141a-b of a respective assembly pin 140.

[0102] The terminal connecting member 160 may be used at the outermost frame sections, as shown in Fig. 1 and Figs. 2a-c. To further specify, the terminal connecting member 160 may be used together with a connecting member 130 at a location where two frame parts are to be assembled and locked in relation to each other but where it is not desired, in one direction, to further have a connecting member 130 engaging with a second assembly pin 140. Thus, the terminal connecting member 160 has the same function as the connecting member 130, i.e. , to engage with an assembly pin 140 to lock two frame parts together. However, the terminal connecting member 160 does only have one threaded portion and can therefore not be engaged with two separate assembly pins 140. It is to be noted that a connecting member 130 may be used as a terminal connecting member 160. In such a case, the connecting member is only engaged with one assembly pin at one of its threaded end portions. With reference to Fig. 6, the wall panels 150 of the modular building system 100 are shown. The wall panels 150 are configured to be clamped between at least two body frame parts 110 and / or at least two corner frame parts 120, as shown in Figs 7a-8b. The wall panels 150 may be of a material suitable for constituting walls of a building, e.g., drywall, wood, or wood fiber. The wall panels 150 may be made of plastic or glass. It is to be noted that the modular building system 100 may comprise a first type of wall panels 150 and a second type of wall panels 150. The first type of wall panels 150 may be panels made of e.g., wood, and the second type of wall panels 150 may be made of e.g., glass.

[0103] As shown in Fig. 6, the wall panel 150 comprises protruding edges 151 , 152 extending along the longitudinal and transversal extension of the wall panel 150. The protruding edges 151 , 152 are configured to be positioned in a respective panel assembly groove 115a-b, 128a-b and / or interlocking with a corresponding protruding edge 152 of another adjacent wall panel 150. The transversally extending protruding edge 152 is protruding from an upper portion 153 of the wall panel 150 at one transversally extending side and the transversally extending protruding edge 152 of the other transversally extending side of the end wall panel 150 protrudes from a lower portion 154 thereof. Due to this design, separate wall panels 150 can be brought into abutment such that the corresponding transversally extending protruding edges 152 can be positioned relative each other such that the upper and lower portion 153, 154 of two separate wall panels 150 are flush in relation to each other.

[0104] Fig. 7a-b discloses a detailed exploded view of how the wall panels 150 are clamped between at least two body frame parts 110. As seen in Fig. 7a, body frame parts 110 are arranged on opposite sides of the wall panels 150. The longitudinally extending protruding edges 151 of the end wall panel 150 are to be arranged in the panel assembly grooves 115a-b of the body frame parts 110, as shown in Figs. 7b. As the body frame parts 110 are assembled to each other by arranging the corresponding assembly grooves 112a-b and assembly protrusions 113a-b of the separate body frame parts 110 in relation to each other and by arranging the respective assembly pin 140 in the aligned assembly apertures 114a-b and engaging the respective threaded portions 133a-b, 141a-b of the connecting members 130 and assembly pins, the wall panels 150 are clamped between the body frame parts 110.

[0105] Fig. 7b discloses the wall panel 150 assembly viewed from the side. As at least shown in Figs. 3a-b, and 7b, the body frame part comprises two panel assembly grooves 115a-b on each main side 116a-b permitting the modular building system 100 to have a double wall structure, e.g., an inner wall and an outer wall 150’, 150”. The double wall structure is advantageous in relation to structural integrity. However, the modular building structure 100 is robust and stable with a single wall structure. The wall panels 150 of a single wall structure may function as both an inner and an outer wall 150’, 150”. Additionally, the double wall structure allows for an intermediate space where wall insulation may be placed.

[0106] Fig. 8a discloses an alternative embodiment of the modular building system 100. The modular building system 100 as shown in Fig. 8a, form a building T having a triangular shape. The isosceles triangle shaped building T is formed by connecting a plurality of frame sections 101a-g. The frame sections as shown in Fig. 8a comprises the same number and type of frame parts. The building T, as shown in Fig. 8a, comprises a double wall structure.

[0107] Fig. 8b discloses another alternative embodiment of the modular building system 100. Contrary to the buildings 1 , T, as shown in Figs. 1 and 8a, where the frame sections 101 a-i are arranged horizontally, the modular building system, as shown in Fig. 8b, form a building 1” where the frame sections 101a-d are arranged vertically. Consequently, the body frame parts 110 and the corner frame parts 120 are arranged in a flat laid state. The connecting members 130 locks and interconnects the frame parts vertically. The building 1”, as shown in Fig. 8b, comprises a single wall structure.

[0108] Although the present invention has been described with reference to various embodiments, those skilled in the art will recognize that changes may be made without departing from the scope of the invention. It is intended that the detailed description be regarded as illustrative and that the appended claims including all the equivalents are intended to define the scope of the invention.

Claims

CLAIMS1. A modular building system (100) comprising: a set of frame parts configured to be connected to each other so as to form a building (1 ), the set of frame parts comprising: a plurality of body frame parts (110) having a longitudinal extension, and a plurality of corner frame parts (120), a plurality of connecting members (130), each connecting member (130) having an elongated body portion (131 ) extending between two end portions (132a-b), wherein each end portion (132a-b) comprises a first threaded portion(133a-b) extending in a direction being parallel to the extension of the elongated body portion (131 ), and a plurality of assembly pins (140) comprising at least one second threaded portion (141a-b) configured to be engaged with the first threaded portion (133a-b) of a respective connecting member (130), wherein each body frame part (110) and corner frame part (120) comprises a first and a second connecting portion (111a-b, 121a-b), each connecting portion (111a-b, 121 a-b) comprising at least one assembly groove (112a-b, 122a-b), at least one assembly protrusion (113a-b 123a-b), and at least one assembly aperture (114a-b, 124a-b), wherein in an assembled state of the building system (100), for each body frame part (110) and corner frame part (120), the assembly protrusion (113a-b 123a-b) of a first body frame part (110’) or a first corner frame part (120’) is positioned in the assembly groove (112a-b, 122a-b) of a second body frame part (110”) or a second corner frame part (120”), and theassembly protrusion (113a-b 123a-b) of the second body frame part (110”) or a second corner frame part (120”) is positioned in the assembly groove (112a-b, 122a-b) of the first body frame part (110’) or the first corner frame part (120’), wherein the respective assembly pin (140) is arranged in a respective assembly aperture (114a-b, 124a-b) of the first body frame part (110’) or the first corner frame part (120') and the second body frame part (110”) or the second corner frame part (120”), and wherein the respective second treaded portion (141a-b) of the assembly pin (140) is engaged with said first threaded portion (133a-b) of a respective connecting member (130) such that the body frame parts (110) and corner frame parts (120) of the set of frame parts are locked to each other.

2. The modular building system (100) according to claim 1 , wherein the first and second connecting portion (111 a-b) of each of the body frame parts (110) are arranged on opposite ends of the body frame part (110).

3. The modular building system according to claims 1 or 2, wherein at least one of the body frame parts (110) comprises a third connecting portion (111c) arranged along the longitudinal extension of the body frame part (110), the third connecting portion (111c) comprising at least one assembly groove (112c), at least one assembly protrusion (113c), and at least one assembly aperture (114c), wherein the at least one assembly groove (112a-b) and the at least one assembly protrusion (113a-b) of the first and second connecting portion (111 a-b) of the body frame part (110) extends in a first direction, and wherein the at least one assembly groove (112c) and the at least one assembly protrusion (113c) of the third connecting portion (111c) of the bodyframe part (110) extend in a second direction, the second direction being transverse to the first direction.

4. The modular building system (100) according to claims 1-3, wherein the assembly groove (112a-b, 122a-b) and the assembly protrusion (113a-b, 123a-b) of the first and second connecting portion (111a-b, 121a-b) extends transversally relative to the longitudinal extension of the respective body frame part (110) or respective corner frame part (120).

5. The modular building system (100) according to claims 1-4, wherein the assembly groove (112a-b, 122a-b) of each connecting portion (111a-b, 121a-b) has a transversal and longitudinal width extension being equal to or slightly greater than a transversal and longitudinal width extension of each assembly protrusion (113a-b, 123a-b).

6. The modular building system (100) according to claims 1-5, wherein at least one corner frame part (120) comprises a first section (125a) and a second section (125b) being arranged at an angle (v) relative each other.

7. The modular building system (100) according to claim 6, wherein said angle (v) is an acute or obtuse angle.

8. The modular building system (100) according to claim 6, wherein said angle is 90°.

9. The modular building system (100) according to claim 6, wherein each corner frame part (120) comprises a third assembly aperture (124c) positioned at a corner portion (126) of said corner frame part (120), the corner portion (126) being located at an intersection between the first and second section (125a-b) of said corner frame part (120).

10. The modular building system (100) according to claims 1-9, wherein the modular building system (100) further comprises a plurality of wall panels (150), the wall panels (150) are configured to be clampedbetween at least two body frame parts (110) and / or at least two corner frame parts (120).

11. The modular building system (100) according to claim 10, wherein each body frame part (110) and / or corner frame part (120) comprises at least one panel assembly groove (115a-b, 128a-b) extending along the longitudinal extension of the body frame part (110) and the corner frame part (120), wherein in an assembled state of the building system (100), each wall panel (150) is arranged in at least two respective panel assembly grooves (115a-b, 128a-b) of at least two opposing body frame parts (110) and / or corner frame parts (120).

12. The modular building system (100) according to claims 1-11 , wherein the set of frame parts further comprises a terminal connecting member (160) comprising a third threaded portion (161 ) at one end portion (162) thereof, the third threaded portion (161 ) of the terminal connecting member (160) is configured to be engaged with the second treaded portion (141a-b) of a respective assembly pin (140).

13. The modular building system (100) according to claims 1-12, wherein each body frame part (110) and corner frame part (120) comprise a first and a second main side (116a-b, 127a-b), the first main side (116a, 127a) being opposite the second main side (116b, 127b), wherein the at least one assembly groove (112a-b, 122a-b) and the at least one assembly protrusion (113a-b 123a-b) of the first connecting portion (111a, 121 a) is arranged on the first main side (116a, 127a), and wherein the at least one assembly groove (112a-b, 122a-b) and the at least one assembly protrusion (113a-b 123a-b) of the second connecting portion (111 b, 121 b) is arranged on the second main side (116b, 127b).

14. The modular building system (100) according to claims 1-13, wherein the longitudinal extension or a transversal extension of each frame part (110, 120) of the set of frame parts is at most 1200 mm, and wherein the other dimension is at most 800 mm.

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