WO2022248005A1

WO2022248005A1 - Furniture assembly and a furniture with such furniture assembly

Info

Publication number: WO2022248005A1
Application number: PCT/DK2022/050108
Authority: WO
Inventors: Gustav WENNEBERG
Original assignee: Wenneberg Gustav
Priority date: 2021-05-25
Filing date: 2022-05-24
Publication date: 2022-12-01
Also published as: DK202100546A1; DK181021B1

Abstract

The invention relates to a furniture assembly between a first furniture part and a second furniture part, the first furniture part intended to be assembled with the second furniture part, where the first furniture part has a hole and where the second furniture part has another conical hole of the second furniture part. A pointed end of a conical pin is intended for being passed through the one hole of the first furniture part and through the conical other hole of the second furniture part. When the conical pin is passed all through the holes and is in a tight fit with at least the conical hole through the second furniture part, the pointed end of the conical pin extends outside the holes. The invention also relates to a furniture with such furniture assembly.

Description

FURNITURE ASSEMBLY AND A FURNITURE WITH SUCH FURNITURE ASSEMBLY

FIELD OF THE INVENTION

The invention relates to a furniture assembly between a first furniture part and a second furniture part, the first furniture part intended to be assembled with the second furniture part. The first furniture part has one hole extending through the first furniture part and the second furniture part has another hole extending through the second furniture part.

A pin is intended for passing through both the first hole and the second hole to thereby maintain the first furniture part and the second furniture part assembled.

BACKGROUND OF THE INVENTION

Some furniture is delivered fully assembled to an end user of the furniture. Other furniture is delivered partly assembled, or not assembled, to an end user of the furniture. If furniture is delivered partly assembled or non-assembled, the end user has to perform the fully assembly of the furniture. Non-dependent on whether the furniture is delivered to the end user fully assembled, partly assembled or non-assembled, the furniture is intended for being used afterwards by the end user in a fully assembled state, without being dissembled at any time afterwards.

However, furniture exists that offers a possibility for the end user to dissemble the furniture. Such furniture makes a virtue in being assembled by elements which either are bulky, so that it is easy for the end user to grab the elements, or which requires a screwdriver or the like special tools to dissemble and assemble furniture parts.

US 2006/0228172 A1 shows and describes a furniture system with a furniture assembly between a so-called receptor 3 and a so-called secured member 4 by means of a so- called locking element 1 and a wedge-shaped so-called connector 2. The receptor 3 has a hole 7 which extends through the receptor. The hole 7 is cylindrical from an inlet in the hole to an outlet of the hole, so that the hole 7 has the same cross section at both inlet and outlet, and where the inlet is intended to receive a pointed end of the wedge-shaped connector 2 in the furniture assembly. Locking element 1 has a second hole 5 extending through locking element 1, where the second hole 5 may be internally wedge-shaped from an inlet to an outlet, so that the inlet of the wedge-shaped hole 5 has a larger cross-sectional area than at the outlet, and the inlet is intended to receive the pointed end of the wedge-shaped connector 2 on the furniture unit. The pointed end of the wedge-shaped connector 2 is intended to be passed through the hole 7 in the receptor 3 and through the second hole 5 in the locking element 1 when the receptor 3 is assembled with the locking element 1.

CN 210106330 U1 describes two pin-and-pin elements, a locking bolt 2 and a fixing screw 4. The two pin-and-pin elements have exactly the same size. Each of the pin-and- pin elements is provided with a number of pin heads 5 and grooves 6. The pin heads 5 and 6 are arranged at intervals and in the same number, each pin-and-pin member is provided with a fastening hole 8. The axial direction of the fastening hole 8 is the same as for the locking bolt 2. A locking bolt 2 includes a locking cap 9 and a locking rod 10. The locking rod 10 gradually tapers from the position of the locking cap to the tip. The pin 5 on the pin-and-pin elements is provided with a locking hole 7 which fits the locking bolt 2. The pointed end of the locking bolt is provided with a bolt screw hole 11, axially arranged. A fixing screw 4 is threadedly connected to the bolt screw hole 1.

US 4,890,953 A shows and describes a beam joint for connecting ends of two wooden beams. The beam ends have overlapping matching tongues to connect them to each other and provide angled mating surfaces to reinforce the joint. The collection is able to be supported by a post. A pin in the assembly receives a tap on the post. Means that hold the tongues together comprise a plurality of sets of holes 34, 36, 38 in the two tongues, with wooden pegs 44,46,48 being located in each set of respective holes.

US 6,357,194 B1 describes a first piece of furniture and a second piece of furniture, each with its own part of a dovetail assembly. A conical dowel can be passed through conical holes in the dovetail assembly to keep the two parts of the dovetail assembly interconnected, as an alternative to glue, nails or staples, which are also shown and described. The dowel has a length the same as or perhaps less than the total length of the holes through the first dovetail assembly and the second dovetail assembly.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide to an end user a furniture assembly, which is as discrete and non-bulky as possible, and which at the same time offers the end user assembling, and possibly dissembling, a furniture with only readily available tools.

It may also be an object of the present invention to provide to the end user a furniture with a furniture assembly allowing easy and quick assembling and dissembling, using only readily available tools and not requiring special skills to assemble and dissemble the furniture.

The object of the invention is obtained by a furniture assembly,

- the first furniture part having a tenon with a base and a tip, the tenon having one hole being conical between an inlet and an outlet of the conical hole, the conical hole of the first furniture part extending through the tenon between the base and the tip of the tenon, and the conical hole having a centre axis A,

- the second furniture part having a mortise extending from an inlet of the mortise, at an outer surface of the second furniture part, and into the second furniture part, and

- the second furniture part having another hole being conical between an inlet and an outlet of the conical hole, the conical hole of the second furniture part extending on opposite side of the mortise so that a centre axis B of the second hole extends through the mortise,

- the tenon of the first furniture part capable of being inserted into the mortise of the second furniture part so that the tip of the tenon extends inside the mortise and the base of the tenon abuts the outer surface of the second furniture part,

- the second hole through the second furniture part having a centre axis B of the second hole through the second furniture part extending through the mortise at a second distance D2 measured from the inlet of the mortise,

- where the first distance D1 of the first centre axis A of the conical hole through the tenon is the same as, alternatively less than, the second distance D2 of the centre axis B of the conical hole through the mortise, and

- the first conical hole being conical, from an inlet of the hole to an outlet of the conical hole so that the conical hole has a larger cross-sectional area at the inlet than at the outlet of the conical hole, the inlet intended for receiving a pointed end of a conical pin of the furniture assembly,

- the second hole being conical from an inlet of the conical hole to an outlet of the conical hole so that the conical hole has a larger cross-sectional area at the inlet than at the outlet of the conical hole, the inlet intended for receiving a pointed end of the conical pin of the furniture assembly,

- the pointed end of the conical pin intended for being passed through the first conical hole in the tenon of the first furniture part and through the second conical hole of the mortice of the second furniture part, when the first furniture part is assembled with the second furniture part, and

- the pointed end of the conical pin, when the pointed end of the conical pin is passed through the conical holes, being in a tight fit in both the conical hole of the tenon and the conical holes of the mortise by - an outside surface of the conical pin abutting both an inner surface of the conical hole of the tenon and abutting inner surfaces of the conical hole of the mortise, the pointed end of the conical pin extending outside the conical holes.

A conical pin inserted into conical holes has the advantage of establishing a tight fit between an outer surface of the conical pin and inner surfaces of the conical holes of the two furniture parts, by forcing a pointed end of the conical pin trough the conical holes.

Even if a strong force is applied to the conical pin, when inserting the conical pin into the conical holes, possibly by hand or preferably by hammering the conical pin into the conical holes, the conical pin is still possible to extract from the conical holes by pushing the pointed end of the conical pin the opposite way as when inserting the conical pin, by firstly pushing the pointed end of the conical pin towards the conical holes and then pulling the blunt end of the conical pin away from the conical holes. Extraction of the pin may possibly be performed without tools, however, preferably be performed by using the same hammer as possibly used when inserting the conical pin into the conical holes.

The furniture parts may thereby be assembled easily by hand by inserting the pointed end of the conical pin into the conical holes and pushing, possibly by hammering, the blunt end of the conical pin towards the conical holes so that the pointed end of the conical pin extends outside the conical holes. Furthermore, the furniture parts may also be dissembled easily by hand by pushing the pointed end of the conical pin, possibly by hammering, towards the conical holes and then pulling the blunt end of the conical pin away from the conical holes. Both during assembling and during dissembling, no tools, other than possibly a hammer, are needed.

Despite the fact that the close abutment and the resulting friction maintains the conical pin between the outer surface of the conical pin and the inner surfaces of the conical holes, it is still easy to dissemble the furniture assembly. Pushing, possibly by hammering, the pointed end of the pin in a direction opposite to when inserting the conical pin results in the abutment between the outer surface of the conical pin and the inner surfaces of the conical holes, and thereby the friction, being eliminated at once, when the conical pin has been displaced just a little distance. There is no friction along the entire displacement of the conical trough the conical holes in the tenon and in the mortice. As soon as the conical pin has been displaced only a very little distance, abutment between the outer surface of the conical pin and the inner surfaces of the conical holes is ended, and the friction is ended, and the pin may be extracted by hand for the most of the displacement through the conical holes. A possible embodiment of the invention according to the invention is characterised by the first distance D1 of the first centre axis of the hole through the tenon is the between 0.1 mm and 5.0 mm less than, possibly between 0.1 and 2.5 mm less than, the second distance D2 of the centre axis of the conical hole through the mortise,

The first distance D1 being smaller than the second distance D2 results in the two furniture parts being forced towards each other by a larger force, resulting in a tighter fit between the two furniture parts, than if the first distance D1 is the same as the second distance D2, and the conical pin is inserted through the conical holes of the furniture parts.

A possible embodiment of the invention according to the invention is characterised by another part of the conical hole extending through the second furniture part from the mortise towards a distal outer surface and is conical towards the distal outer surface, the other part having a cross-sectional area at the distal outer surface, said cross-sectional area being larger than a cross-sectional area of the pointed end of the conical pin.

The pointed end of the conical pin must extend outside the conical holes in the mortice, when having been inserted into the conical holes, in order for the conical pin to be pushed, possibly by hammering, out of the conical holes when the furniture assembly is to be dissembled. Therefore, the cross-sectional area at the distal outer surface of the other part of the conical hole must be larger than a cross-sectional area of the pointed end of the conical pin.

A possible embodiment of the invention according to the invention is characterised by one part of the conical hole extending through the second furniture part from a proximal outer surface towards the mortise and being conical towards the mortise, the one part having a cross-sectional area at the proximal outer surface, said cross-sectional area being smaller than a cross-sectional area of the blunt end of the conical pin.

The blunt end of the conical pin may extend outside the conical holes in the mortice, when having been inserted into the conical holes, in order for the conical pin to be pulled, possibly by hand, out of the conical holes when the furniture assembly is to be dissembled. Therefore, the cross-sectional area at the proximal outer surface of the one part of the conical hole may be smaller than a cross-sectional area of the blunt end of the conical pin. A possible embodiment of the invention according to the invention is characterised by a length of the conical pin being larger than an extension of the one hole through the tenon of the first furniture part added an extension of the one part of the conical hole extending through the second furniture part on one side of the mortise and an extension of the other part of the conical hole extending through the second furniture part on another side of the mortise.

In order for the pointed end of the conical pin extending outside the conical holes and possibly also the blunt end of the conical pin extending outside the conical holes, the length of the conical pin must be larger than the accumulated length of the conical holes through which the conical pin is extending when constituting part of the furniture assembly.

A possible embodiment of the invention according to the invention is characterised by a cross-sectional shape of the conical pin, perpendicular to a longitudinal extension of the conical pin, is a circle, an equilateral square, an equilateral triangle, an equilateral hexagon.

The conical pin may exhibit various cross-sectional shapes, but all of the shapes mentioned being equilateral so that the conical pin may be inserted without the user having to consider a rotational orientation of the conical pin around the length of the conical pin, that is, any possible insertion of the conical pin being a correct insertion.

A furniture according to the invention is characterised by a furniture assembly according to the invention.

A furniture with a furniture assembly according to the invention may be used for many types and sizes of furniture. Especially modular furniture and so-called knock-down furniture are well suited for the furniture assembly according to the invention.

Modular furniture is standardized units designed according to the need and design requirements of a user. Often, modular furniture is shipped fiat packed. Flat packed eases transportation and packaging, saving packing material and reducing overall cost. Knock down furniture is packed and transported in parts and assembled at site.

A preferred embodiment of a furniture according to the invention is characterised by the furniture having one state, where a first furniture part and a second furniture part are dissembled, and the furniture having another state, where a first furniture part and a second furniture part are assembled, and where the furniture, when assembled, has the pointed end of the conical pin extending outside a hole of on or the other furniture part, and where disassembly of the furniture is performed by the pointed end of the conical pin being displaced towards the furniture part, thereby displacing the blunt end of the conical pin away from one or the other furniture part.

Assembling, and subsequent dissembling, of furniture with a furniture assembly according to the invention, is easy, fast and may possibly be performed by hand.

BRIEF DESCRIPTION OF THE DRAWING

Fig. 1 is a photograph of various elements of a preferred embodiment of a furniture assembly according to the invention,

Fig. 2 is a photograph of a partially assembled state of the preferred furniture assembly according to the invention,

Fig. 3 is a photograph of another partially assembled state of the preferred furniture assembly according to the invention,

Fig. 4 is a photograph of an almost fully assembled state of the preferred furniture assembly according to the invention,

Fig. 5 is a photograph of a one fully assembled state of the preferred furniture assembly according to the invention,

Fig. 6 is a photograph of another fully assembled state of the preferred furniture assembly according to the invention,

Fig. 7 is a photograph of various elements of a possible other embodiment of a furniture assembly according to the invention,

Fig. 8 is a drawing of a cross-sectional view of an assembled state, without conical pin, of the preferred furniture assembly according to the invention, and Fig. 9 is a drawing of a cross-sectional view of a fully assembled state, with conical pin, of the preferred furniture assembly according to the invention.

DETAILED DESCRIPTION OF AN EMBODIMENT OF THE INVENTION

Fig. 1 shows a first furniture part 1, a second furniture part 2 and a pin 3, all constituting a furniture assembly. A hammer 4 is also shown, for hammering and fastening the pin 3 into conical holes (see Fig. 2-4) of the first furniture part 1 and of the second furniture part 2, respectively. The first furniture part 1 is provided with a tenon 5 constituting a first joint member and the second furniture part 2 with a mortise 6 constituting a second joint member. The tenon 5 and the mortice 6 are intended for mutually joining the two furniture parts 1,2 (see Fig. 2-6). The first furniture part 1 has a conical hole 7 passing through the tenon 5. The second furniture part 2 has a conical hole 8 passing through the second furniture part 2 and extending on each side of the mortise 6.

The conical pin 3 is conical so that a pointed end 9 of the conical pin 3 has a smaller cross-sectional area than a cross-sectional area of an opposite blunt end 10 of the conical pin 3. In the embodiment shown, the conical pin 3 has circular cross-sectional shape. In the alternative, the conical pin 3 may have a square, a triangular, or a polygonal, such as hexagonal, cross-sectional shape. The conical pin 3 has an outer surface 11 extending between the pointed end 9 and the blunt end 10 of the conical pin 3

Fig. 2 shows the tenon 5 of the first furniture part 1 partly inserted into the mortise 6 of the second furniture part 2. The conical hole 7 through the first furniture part 1 has a centre axis A extending at a distance D1 from a base 12 of the first furniture part 1. The base 12 defines a surface, from which the tenon 5 extends. The conical hole 7 through the first furniture part 1 has an inner surface 13 intended for abutting the outer surface 11 of the conical pin 3, when inserted into the conical hole 7.

The conical hole 8 through the second furniture part 2 has a centre axis B extending at a distance D2 from an outer surface 14 of the second furniture part 2. The outer surface 14 of the second furniture part 2 is intended for abutting the base 12 of the first furniture part 1, when the tenon 5 is fully inserted into the mortise 6, see Fig. 5. The conical hole 8 through the second furniture part 1 has an inner surface 15 intended for abutting the outer surface 11 of the conical pin 3, when the conical pin 3 is fully inserted into the hole 8.

In the embodiment shown, the distance D1 is the same as the distance D2 so that the centre axis A of the first furniture part 1 is aligned with the centre axis B of the second furniture part 2, when the furniture parts 1,2 are fully assembled (see Fig. 4), by the tenon 5 being fully inserted into the mortise 6. The conical pin 3 will maintain the furniture parts 1,2 tightly together, while the conical pin 3 at the same time being maintained in the conical holes 7,8 by a tight fit between the outer surface 11 of the conical pin 3 and inner surfaces 13,15 of the conical holes 7,8 (see Fig. 7), but while the conical pin 3 is still able to extract easily by firstly pushing, possibly by hammering, the pointed end 9 of the conical pin 3 towards the conical holes 7,8 and secondly pulling the blunt end 10 of the conical pin 3 away from the conical holes 7,8 (see Fig. 5-7).

In an alternative embodiment, the distance D1 of the first furniture part 1 is a little smaller than the distance D2 of the second furniture part 2. The distance D1 may be between 0.1 mm and 0.5 mm smaller than the distance D2, so that the centre axis A of the first furniture part 1 is not aligned with the centre axis B of the second furniture part 2, when the furniture parts are fully assembled. The force holding the first furniture part 1 to the second furniture part 2, when the conical pin 3 is inserted through the conical holes 7,8 of the furniture parts 1,2, is thereby stronger, than of the centre axis A is aligned with the centre axis B.

Any difference between the distance D1 and the distance D2 depends on the size of the first furniture part 1 and the second furniture part 2, and depends on a cross-sectional area of the conical pin 3, and depend of the conical holes 7,8 through the first furniture part 1 and through the second furniture part 2, respectively. The larger the sizes of the various elements, the larger a difference between the distance D1 and the distance D2 may be.

In the embodiment show, the cross-sectional shape of the conical hole 7 through the tenon 5 of the first furniture part 1 is circular. In alternative embodiment the cross- sectional shape of the conical hole 7 through the tenon 5 may be oblong, or square, or polygonal, as long as the important feature of the distance D1 being the same as, or smaller than, the distance D2 is maintained.

In the embodiment shown, the cross-sectional shape of the conical hole 7 extending through the tenon 5 of the first furniture part 1 and the cross-sectional shape of the conical hole 8 through the second furniture part 2 are circular. In alternative embodiments, the cross-sectional shape of the conical hole 7 through the tenon 5 of the first furniture part 1 and the cross-sectional shape of the conical hole 8 through the second furniture part 2 may be polygonal or may be rounded with another cross-section than circular, depending on the cross-sectional shape of the conical pin 3, and as long as the important feature of the distance D1 being the same as, or smaller than, the distance D2 is maintained.

Fig. 3 shows the tenon 5 of the first furniture part 1 almost fully inserted into the mortise 6 of the second furniture part 2. Part of the conical hole 7 extending through the tenon 5 of the first furniture part 1 is visible through the conical hole 8 of the second furniture part 2.

Fig. 4 shows the tenon 5 of the first furniture part 1 fully inserted into the mortise 6 of the second furniture part 2. All of the conical hole 7 extending through the tenon 5 of the first furniture part 1 is visible through the conical hole 8 of the second furniture part 2. The base 12 of the first furniture part 1 is abutting the outer surface 14 of second furniture part 2. An outer end 16 of the tenon 5 extends past another outer surface 17 of the second furniture part 2. Alternatively, the outer end 16 of the tenon 5 does not extend past the other outer surface 17 of the second furniture part 2.

In the embodiment shown, the mortise 6 of the second furniture part 2 extends fully through the second furniture part 2, from the one outer surface 14, into the second furniture part 2, to the other outer surface 16 of the second furniture part 2. In an alternative embodiment, the mortise 6 of the second furniture part 2 extends only partly through the second furniture part 2, from the one outer surface 14, into the second furniture part 2, but not to the other outer surface 16 of the second furniture part 2.

Fig. 5 shows, that when the conical pin 3 is inserted into the conical holes 7,8 of the first and second furniture parts 1,2, the pointed end 9 of the conical pin 3 is capable of extending all way through the conical hole 8 in the second furniture part 2.

However, the blunt end 10 of the conical pin 3 is not capable of extending through the conical hole 7 in the tenon 5. When the conical pin 3 is fully inserted through the conical holes 7,8, the pointed end 9 of the conical pin 3 extends through and past a distal surface 19 (see Fig. 6) of the conical hole 8 of the second furniture part 2. In order to obtain this, 16 the hole 8 at the distal surface 19 of the second furniture part 2 has a cross-sectional area being larger than a cross-sectional are of the pointed end 9 of the conical pin 3.

The blunt end 10 of the conical pin 3 is capable of extending through only the proximal surface 18, but not the distal surface 19 of the conical hole 8 of the second furniture part 2. The blunt end 10 of the conical pin 3 may extend flush with the proximal surface 18 of the conical hole 8 of the second furniture part 2, or blunt end 10 of the conical pin 3 may extend outside the proximal surface 18 of the second furniture part 2.

Fig. 6 shows the blunt end 10 of the conical pin 3 not being capable of extending through the proximal surface 18 of the conical hole 8 of the second furniture part 2 and the blunt end 10 of the conical pin 3 therefore extends outside the proximal surface 18 of the conical hole 8 of the second furniture part 2. In order to obtain this, the hole 8 at the proximal surface 18 of the second furniture part 2 has a cross-section area being smaller than a cross-sectional are of the blunt end 10 of the conical pin 3.

Fig. 6 shows the first furniture part 1 and the second furniture part 2 fully assembled, and the conical pin 3 extending into the conical hole 8 of the second furniture part 2 and extending through the conical hole 7 the tenon 5 of the first furniture part 1. The pointed end 9 of the conical pin 3, having the smaller cross-sectional area, extends outside the distal surface 19 of the second furniture part 2 and the blunt end 10 of the conical pin 3 extends outside the proximal surface 18 of the second furniture part 2.

In the embodiment shown, the dimensions of the conical hole 8 through the second furniture part 2 is so that an extension of the pointed end 9 of the conical pin 3 from and outside the distal surface 19 of the second furniture part 2 is approximately the same as an extension of the blunt end 10 of the conical pin 3 from and outside the proximal surface 18 of the second furniture part 2. This is visually pleasing.

In an alternative embodiment, the dimensions of the conical hole 8 through the second furniture part 2 is so that the pointed end 9 of the conical pin 3 extend from and outside the distal surface 19 of the second furniture part 2, but the blunt end 10 of the conical pin 3 extends flush with the proximal surface 18 of the second furniture part 2, that is, the blunt end 10 of the conical pin 3 is fully embedded in the conical hole 8.

At least the conical hole 8 through the second furniture part 2 is conical, congruent with the tapering of the conical pin 3. Depending on whether the conical pin 3, when inserted into the conical hole 8 of the second furniture part 2, is to extend both with the pointed end 9 outside the distal surface 19 and with the blunt end 10 outside the proximal surface 18, or is to extend with the pointed end 9 outside the distal surface 19 and the blunt end 10 flush with the proximal surface 18, the dimensions and a possible tapering of the conical hole 8 selected to be congruent with the dimension and tapering of the pointed end 9 of the conical pin 3 and the blunt end 10 of the conical pin 3.

The hole 7 through the tenon 5 of the first furniture part 1 is also conical, congruent with the tapering of the conical pin 3. Depending on whether the conical pin 3, when inserted into the conical hole 7, is to extend both with the pointed end 9 outside the distal surface 19 and with the other, opposite end outside the proximal surface 18, or is to extend with the pointed end 9 outside the distal surface 19 and the other, opposite end flush with the proximal surface 18, the dimensions and a possible tapering of the conical hole 7 is selected congruent with the dimension and tapering of the pointed end 9 of the conical pin 3 and the blunt end 10 of the conical pin 3.

Alternatively, the conical hole 7 through the tenon 5 of the first furniture part 1 is cylindrical with a cross-sectional area of the conical hole 7 being the same as, possibly being larger than, a cross-sectional area of the pin 3 along an extension of the pin 3 passing through the conical hole 7 of the tenon 5. If the conical hole 7 through the tenon 5 of the first furniture part 1 is cylindrical, the distance D1 is possibly a little shorter than the distance D2.

The distance D1 is possible between 0.1 mm and 0.3 mm shorter than the distance D2, depending on the size of the furniture parts 1,2, the size of the conical holes 7,8 and the size of the pin 3. Thereby, the tenon 5, when the pin 3 is inserted, is pulled further into the mortise 8, and any slack or play is eliminated, when the conical pin 3 is inserted.

Fig. 7 shows an alternative furniture assembly, A first furniture part 1 extends through a hole (not shown) in a second furniture part 2. The hole in the second furniture part 1 has a cross-section corresponding to a cross-section of the first furniture art 1. Thereby, the first furniture part 1 and the second furniture part 2 are mutually joined and fitted. The fit between the furniture parts 1,2 is only so tight that a user is capable of inserting and extracting the first furniture part 1 from the second furniture part 2 by hand.

The first furniture part 1 has a hole (not shown) for the pin 3, similar to the conical hole 7 through the tenon 5 of the other embodiments shown (as example, see Fig. 9). The second furniture part 2 has a hole (not shown) for the pin, similar to the hole 8 through the mortice 6 of the other embodiments shown (as example, see Fig. 9).

The pin 3 extends through the hole in the first furniture part 1 and the hole in the second furniture part 2, so that the pointed end 9 extends outside the conical holes 7,8 and so that the blunt end 10 extends outside the conical holes 7,8. In an alternative embodiment, the bunt end 10 of the pin 3 may extends flush with the outside surface of the second furniture part 2.

Fig. 8 is a cross-section of the furniture assembly when fully assembled as shown in Fig. 4, without the pin yet inserted through the conical holes 7,8. The tenon 5 of the first furniture part 1 is fully inserted into the mortise 6 of the second furniture part 2. The centre axis A of the one conical hole 7 is aligned with the centre axis B of the second conical hole 8.

The conical hole 8 in the mortice 6 extends from the proximal surface 18 to one side of the tenon 5 and further from another side of the tenon 5 to the distal surface 19. The inner surface 13 of the hole 8 through the mortise 6 is aligned with the inner surface 15 of the conical hole 7 through the tenon 5, ready to fit the outer surface 11 of the conical pin 3.

Fig. 9 is a cross-section of the furniture assembly when fully assembled as shown in Fig. 4, and with the conical pin 3 inserted through the conical holes 7,8. The conical pin 3 extends through the conical hole 7 of the tenon 5 and through the conical hole 8 of the second furniture part 2. The pointed end 9 of the conical pin 3 extends outside the distal surface 19 of the second furniture part 2, and the blunt end 10 of the conical pin 3 extends outside the proximal surface 18 of the second furniture part 2.

The conical pin 3 is inserted into the conical holes 7,8 by the pointed end 9 of the conical pin 3 being passed through the conical hole 8 with an inlet at the proximal surface 18, then through the conical hole 7 in the tenon 5 and then through the conical hole 8 with an outlet at the distal surface 19. The conical pin 3 is pushed into the holes 7,8 with a force ensuring a tight fit between the outer surface 11 of the conical pin 3 and the inside surfaces 13,15 of the conical holes 7,8.

The tight fit prevents the conical pin 3 from falling out of the conical holes 7,8, but the tight fit still ensures that the conical pin 3 can be extracted from the conical holes 7,8 by firstly pushing the pointed end 9 of the conical pin 3 towards the outlet of the conical hole 8 at the distal surface 19 and secondly pulling the blunt end 10 of the conical pin 3 away from the inlet of the conical hole 8 at the proximal surface 18. A soon as the conical pin 3 is displaced just a little, without the conical pin 3 having been fully extracted from the conical holes 7,8, the tight fit is released between the outer surface 11 of the conical 3 and the inner surfaces 13,15 of the conical holes 7,8. Then the conical pin 3 can easily be fully extracted, by hand. When the conical pin 3 is fully extracted from the conical holes 7,8, the tenon 5 can be pulled out from the mortise 6.

In the embodiment shown, the conical pin is used to assemble a first furniture part and a second furniture part, ether via a tenon and mortise assembly as shown in Fig. 1-6 and fig. 8-9, or by the first furniture part extending through a hole in the second furniture part as shown in Fig. 7. Other furniture assemblies are possible while still using a conical pin and at least one conical hole of one furniture part and a hole of another furniture part to assemble the furniture parts and to maintain the furniture assembly in an assembled state. Also, more furniture parts than the first furniture part and the second furniture part may be part of the furniture assembly, all furniture parts being assembled by a conical pin extending though at least two holes in at least two of the furniture parts.

Claims

1. Furniture assembly between a first furniture part (1) and a second furniture part (2), the first furniture part (1) intended to be assembled with the second furniture part (2),

- the first furniture part (1) having a tenon (5) with a base and a tip, the tenon (5) having one hole (7) being conical between an inlet and an outlet of the conical hole (7), the conical hole (7) of the first furniture part (1) extending through the tenon (5) between the base and the tip of the tenon (5), and the conical hole (7) having a centre axis (A),

- the second furniture part (2) having a mortise (6) extending from an inlet of the mortise (6), at an outer surface of the second furniture part (2), and into the second furniture part (2), and

- the second furniture part (2) having another hole (8) being conical between an inlet and an outlet of the conical hole (8), the conical hole (8) of the second furniture part (2) extending on opposite side of the mortise (6) so that a centre axis (B) of the second hole

(8) extends through the mortise (6),

- the tenon (5) of the first furniture part (1) capable of being inserted into the mortise (6) of the second furniture part (2) so that the tip of the tenon (5) extends inside the mortise (6) and the base of the tenon (5) abuts the outer surface of the second furniture part (2),

- the second hole (8) through the second furniture part (2) having a centre axis (B) of the second hole (8) through the second furniture part (2) extending through the mortise (6) at a second distance (D2) measured from the inlet of the mortise (6),

- where the first distance (Dl) of the first centre axis (A) of the conical hole (7) through the tenon (5) is the same as, alternatively less than, the second distance (D2) of the centre axis (B) of the conical hole (8) through the mortise (6), and

- the first conical hole (7) being conical, from an inlet of the hole to an outlet of the conical hole (7) so that the conical hole (7) has a larger cross-sectional area at the inlet than at the outlet of the conical hole (7), the inlet intended for receiving a pointed end

(9) of a conical pin (3) of the furniture assembly,

- the second hole (8) being conical from an inlet of the conical hole to an outlet of the conical hole (8) so that the conical hole (8) has a larger cross-sectional area at the inlet than at the outlet of the conical hole (8), the inlet intended for receiving a pointed end (9) of the conical pin (3) of the furniture assembly,

- the pointed end (9) of the conical pin (3) intended for being passed through the first conical hole (7) in the tenon (5) of the first furniture part (1) and through the second conical hole (8) of the mortice (6) of the second furniture part (2), when the first furniture part (1) is assembled with the second furniture part (2), and - the pointed end (9) of the conical pin (3), when the pointed end (9) of the conical pin (3) is passed through the conical holes (7,8), being in a tight fit in both the conical hole (7) of the tenon (5) and the conical holes (8) of the mortise (6) by

- an outside surface (11) of the conical pin (3) abutting both an inner surface (14) of the conical hole (7) of the tenon (5) and abutting inner surfaces (13) of the conical hole (8) of the mortise (6), the pointed end (9) of the conical pin (3) extending outside the conical holes (7,8).

2. Furniture assembly according to claim 1, where the first distance (Dl) of the first centre axis (A) of the conical hole (7) through the tenon (5) is the between 0.1 mm and 0.5 mm less than, possibly between 0.1 and 0.25 mm less than, the second distance (D2) of the centre axis (B) of the conical hole (8) through the mortise (6),

3. Furniture assembly according to any of the preceding claims, where another part of the conical hole (8) extends through the second furniture part (2) on from the mortise (6) towards a distal surface (19) and is conical towards the distal surface (19), having a cross-sectional area at the distal surface (19), said cross-sectional area being larger than a cross-sectional area of the pointed end (10) of the conical pin (3).

4. Furniture assembly according to any of the preceding claims, where one part of the conical hole (8) extends through the second furniture part (2) from a proximal surface (18) towards the mortise (6) and is conical towards the mortise (6), having a cross- sectional area at the proximal outer surface (18), said cross-sectional area being smaller than a cross-sectional area of the blunt end 10 of the conical pin (3).

5. Furniture assembly according to any of the preceding claims, where a length of the conical pin (3) is larger than an extension of the one conical hole (7) through the tenon (5) of the first furniture part added an extension of the one part of the conical hole (8) extending through the second furniture part (2) on one side of the mortise (6) and an extension of the other part of the conical hole (8) extending through the second furniture part (2) on another side of the mortise (6).

6. Furniture assembly according to any of the preceding claims, where a cross-sectional shape of the conical pin (3), perpendicular to a longitudinal extension of the conical pin (3), is a circle, an equilateral square, an equilateral triangle, an equilateral hexagon.

7. Furniture with a furniture assembly according to any of claim 1-6.

8. Furniture according to claim 7, the furniture having one state where a first furniture part and a second furniture part are dissembled, and the furniture having another state, where a first furniture part and a second furniture part are assembled, where the furniture, when assembled, has the pointed end (9) of the conical pin (3) extending outside the outlet of the conical hole (8), and where disassembly of the furniture is performed by the pointed end (9) of the conical pin (3) being displaced towards the outlet of the conical hole (8), thereby displacing the blunt end (10) of the conical pin (3) away from the inlet of the conical hole (8).