AU2017203830B2

AU2017203830B2 - Handheld touch object

Info

Publication number: AU2017203830B2
Application number: AU2017203830A
Authority: AU
Inventors: Mark MCLACHLAN; Matthew Mclachlan
Original assignee: Antsy Labs LLC
Current assignee: Antsy Labs LLC
Priority date: 2016-09-13
Filing date: 2017-06-06
Publication date: 2022-10-27
Anticipated expiration: 2037-06-06
Also published as: AU2022246425A1; AU2017100659B4; AU2017100659B9; AU2017100659A4; AU2022246425B2; AU2017203830A1

Abstract

The invention relates to a handheld touch object that has a body with a plurality of faces. At each face there may be presented at least one tactile feature. The tactile features may be selected from one or more of a toggle switch, one or 5 more depressible buttons, a joystick that glides and pivots, one or more moveable gears and a rotatable dial presented substantially flush to a face. Preferably at least one tactile feature provides an audible and/or dynamically tactile feedback to a user, in use. 10 32 303 12 24 46 Fig. 1

Description

32 303

12

24

46

Fig. 1

HANDHELD TOUCH OBJECT

FIELD OFTHEINVENTION The present disclosure relates to a handheld touch object having a manually manipulated tactile feature extending from or formed into at least one surface thereof. The present disclosure relates particularly but not exclusively to a multifaceted handheld touch object that may be used fidget toy, a stress relief toy, a toy, or a hand therapy device or exerciser.

BACKGROUND In the modern lifestyle, people are accustomed to being busy and occupied for most of the time. This can be exacerbated by devices such as cell phones and other electronic devices and the widespread availability of the internet. Thus people may tend to fidget and get restless when they are not occupied. Some people are no longer accustomed to occupying themselves in a passive manner, e.g. by observing the world around them and engaging in thought. It may be beneficial if ways could be devised of responding to this need or modern habit and provide an outlet for energy that would otherwise be directed to fidgeting. Accordingly, it is an object of the present invention to provide an object to address at least of the needs described above or at least provide the public with a useful alternative.

SUMMARY OF THE INVENTION

In a first aspect the invention may broadly be said to be a handheld touch object comprising, a multi-faceted body defining a plurality of faces, a tactile feature presented at at least one of said plurality of faces, the tactile feature capable to being manipulated by a user in use. Preferably the tactile feature is capable of providing at least a tactile feedback to the user as it is manipulated by the user. Preferably the tactile feature is a dynamic tactile feature able to be moved by a user relative to the body. Preferably the tactile feature provides an audible and tactile feedback to the user as it is manipulated by the user.

Preferably the body is a multifaceted body, the body defines a plurality of faces and at least two faces present different tactile features thereon. Preferably the tactile feature is selected from one or more of: a) a toggle switch presented at a face, the toggle switch able to be moved between a first position and a second position, b) one or more depressible buttons presented at a face, c) a joystick that can glide and/or pivot relative to a face that the joystick is presented on, d) one or more moveable wheels (preferably in the form of a gear) presented at a face, e) a dial rotatably presented at a face, f) a ball that can be made to roll, g) a recess formed in a face of the plurality of faces.

Preferably the tactile feature is selected from one or more of: a) a toggle switch presented at a face, the toggle switch moveable between a first position and a second position, b) one or more depressible buttons presented at a face, c) a joystick that glides and pivots relative to a face the joystick is presented on, and a portion of the joystick positioned proud of the face presenting the joystick, d) one or more moveable gears presented at a face, e) a dial presented substantially flush to a face and the dial rotateable relative to a face the dial is presented at, f) a ball that rolls and is retained by the body and exposed at a face of the plurality of faces, g) a recess formed in a face of the plurality of faces.

Preferably body is a cube shaped body defining six faces, the body is a rigid body and a rounded surface transition is provided between all adjacent faces of the six faces.

Preferably at a first face of the body, there is presented a) a plurality of moveable gears arranged in a row, each of the plurality of gears being able to roll about a common axis, the common axis being parallel to the first face, and b) a ball that rolls and is retained by the body and exposed at the first face.

Preferably at a second face of the body there is presented a dial that rotates, the dial mounted substantially flush with the second face.

Preferably at a third face of the body there is presented a switch rotatable back and forth about an axis parallel the third face.

Preferably at a fourth face of the body there is presented a plurality of push buttons selected from at least one of: a) buttons that make a clicking sound when depressed, and b) buttons that make no sound when depressed.

Preferably at a fourth face of the body there is presented five push buttons, the five push buttons spaced apart from each other on the fourth face. Preferably the four of the five push buttons delimit a notional square and the fifth push buttons is located a center of the notional square. Preferably at a fifth face of the body there is presented a recess formed in the fifth face. Preferably the recess includes a base and a sounded surface transition region provided between the base and the fifth face. Preferably at a sixth face of the body there is presented a joystick that can be made to glide and/or pivot relative the body. In a second aspect the present invention may broadly be said to be a handheld touch object comprising; a cube shaped body defining six faces, at a first face of the six faces, there is presented a) a plurality of moveable gears arranged in a row, the plurality of gears being able to roll about a common axis, the common axis being parallel to the first face, b) a ball that rolls and is retained by the body and exposed at the first face, at a second face of the six faces there is presented a dial that rotates, the dial mounted substantially flush with the second face, at a third face of the six faces there is presented a switch rotatable back and forth about an axis parallel the third face, at a fourth face of the six faces there is presented five buttons selected from buttons that make a clicking sound and buttons that make no sound, when depressed, at a fifth face of the six faces there is presented a recess formed in the fifth face, at a sixth face of the six faces there is presented a joystick that glides and pivots. Preferably a rounded surface transition is provided between all adjacent faces. Preferably the first face is opposed to the second face, the third face is opposed to the fourth face, the fifth face is opposed the sixth face. Preferably the ball makes an audible clicking sound when the ball is depressed. Preferably the recess includes a base and a sounded surface transition region provided between the base and the fifth face. Preferably there are three moveable gears in the row. Preferably there are only three moveable gears in the row. In a further aspect the invention may broadly be said to be a handheld touch object comprising; a body comprising a plurality of faces, at each face of the plurality of faces there is presented at least one tactile feature, wherein at two opposing faces of the plurality of faces there is presented a different tactile feature, and; wherein the tactile features are any one or more of: a toggle switch presented at a face, the toggle switch moveable between a first position and a second position, one or more depressible buttons presented at a face, a joystick that glides and pivots relative to a face the joystick is presented on, and a portion of the joystick positioned proud of the face presenting the joystick, one or more moveable dials presented at a face, a dial that rotates relative to a face the dial is presented on.

Preferably at least one face of the plurality of faces presents a ball that rolls and is retained by the body and exposed at the face and the ball making a audible click when depressed. Preferably at least one or more of the tactile features provides both an audible and tactile feedback. Preferably the audible feedback is an audible sound that can be heard by a user. Preferably the body is a rigid body. Rigid means the body does not deform when squeezed or pressed by a user's hands. Preferably a rounded surface transition is provided between all adjacent faces Preferably the body comprises rounded corners. Preferably the tactile features further comprises a recess formed in a face of the body. Preferably the recess includes a base and a sounded surface transition region provided between the base and the face presenting the recess. In one aspect the invention may broadly be said to be a handheld touch object comprising: a multi-faceted body defining a plurality of faces, a tactile feature presented at at least one two of said plurality of faces, the tactile feature capable of being manipulated by a user in use, wherein the body is a cube shaped body defining six faces, the body is a rigid body and a rounded surface transition is provided between all adjacent faces of the six faces, and at least two faces present different tactile features thereon, wherein the body is sized such that it is capable of being grasped by the user's hand to manipulate the different tactile features presented at the at least two faces using different fingers of the user's hand. The term 'comprising' as used in this specification and claims means 'consisting at least in part of'. When interpreting statements in this specification and claims which include the term 'comprising', other features besides the features prefaced by this term in each statement can also be present. Related terms such as 'comprise' and 'comprised' are to be interpreted in a similar manner. This invention may also be said broadly to consist in the parts, elements and features referred to or indicated in the specification of the application, individually or collectively, and any or all combinations of any two or more said parts, elements or features, and where specific integers are mentioned herein which have known equivalents in the art to which this invention relates, such known equivalents are deemed to be incorporated herein as if individually set forth. As used herein the term 'and/or' means 'and' or 'or', or where the context allows both. The invention consists in the foregoing and also envisages constructions of which the following gives examples only. The term "axis" as used in this specification means the axis of revolution about which a line or a plane may be revolved to form a symmetrical shape. For example, a line revolved around and axis of revolution will form a surface, while a plane revolved around and axis of revolution will form a solid.

BRIEF DESCRIPTION OF DRAWINGS The present invention will now be described by way of example only and with reference to the accompanying drawings in which: Figure 1 is a perspective view of a handheld touch object in accordance with an embodiment of the present invention. Figure 2 shows a first face of the handheld touch object of Figure 1; Figure 3 shows a second face of the handheld touch object of Figure 1; Figure 4 shows a third face of the handheld touch object of Figure 1; Figure 5 shows a fourth face of the handheld touch object of Figure 1; Figure 6 shows a fifth face of the handheld touch object of Figurel; Figure 7 shows a sixth face of the handheld touch object of Figure 1; Figure 8 shows a partially exploded view of the handheld touch object in a simplified form to illustrate how it can be assembled from two shell parts and an internal chassis, some features removed and/or simplified in form for ease of interpretation, Figure 9 shows a sectional view through the assembled form of the touch object shown in figure 8.

DETAILED DESCRIPTIONOFTHE INVENTION In Figures 1 to 7, reference numeral 10 refers generally to a handheld touch object in accordance with the disclosure. The handheld touch object 10 comprises a body 12 in the form of a multifaceted block. The body 12 may be in the form of a substantially rectangular block, e.g. preferably a cube, forming six substantially planar faces 14, 16, 18, 20, 22 and 24 of identical perimeter shape.

In the illustrated embodiment, there is a different tactile feature or features for contact and/or manual manipulation (e.g. movement) presented at or on each of the six faces 14, 16, 18, 20, 22 and 24. Alternatively only some of the faces may present a tactile feature and some faces may present a flat face with no tactile feature. The body 12 may also comprise rounded edges and rounded corners. For example, each edge 60 located between two adjacent faces can be rounded (i.e. include a radius) to provide a rounded edge and smooth transition between two adjacent faces. The handheld touch object 10 can be grasped and manipulated in one hand or alternatively the handheld touch object can be grasped in one hand and manipulated by the other hand. The object may also be placed on a surface such as a table and then have one or more of its tactile features manipulated. As shown in Figure 2, the object 10 has a first substantially planar face 14 at which at least one tactile feature may be presented, including but not limited to one or more dials 30. The dial (preferably in the form of a gear having teeth presented at its perimeter) can be manually manipulated by the user. In the illustrated form shown in figure 2, for example, a plurality of dials 30, i.e. a set of dials thereon that can be manually moved by a user's fingers, are presented at the first face 14. The set of dials 30 can be similar to those found in mechanical devices such as combination locks. In the illustrated form, the three dials 30 are arranged in a row. Moreover, the dials 30 can be rotatable in one or two directions. In the illustrated form shown in figure 2, the dials 30 are arranged for dual direction movement (i.e. dual direction rotation). Alternatively the dials 30 may be constrained for a single direction movement (i.e. single direction rotation). The dials 30 may be arranged to rotate about an axis that is parallel to the face 14. The dials 30 may comprise one or more teeth to be like a gear. The teeth provide bearing features or bearing points for a user to push against as the user manipulates or interacts with the gear. The teeth on one gear may be equidistant and evenly spaced around the circumference of the gear. In one aspect all the gears 30 may be identical and include the same number of teeth. Alternatively at least one gear 30 may include more teeth than the other gears or at least one gear may include larger sized teeth than the other gears. The dials or gears 30 may also provide an audible click sound as one or more of the dials 30 are rotated. In an alternative form one or more dials may be silent when rotated or manipulated and may not provide an audible feedback.

The first face 14 may also have a ball or rollerball 32 mounted thereon capable of a rolling movement. The ball or rollerball 32 may be rolled by a user in any direction by manual manipulation by a user. In one aspect the rollerball 32 is preferably able to be subject to omnidirectional movement but alternatively may be constrained for unidirectional or bidirectional movement. In addition, the rollerball may also be pressed down, towards the center of the body 12 and when released it reverts to its original rest position. The rollerball 32 is preferably mounted on or coupled to a biasing member or members that bias the rollerball 32 back to its original rest position. The rollerball 32 may provide some audible feedback such as a sound when the ball is pressed. In the embodiment of the touch object 10 shown in FIGS. 1-7, the first planar face 14 can be subdivided into two halves, with the one or more dials or gears 30 being positioned on one half and the rollerball 32 being positioned on the other. This can allow a user to run a thumb or finger first over the rollerball 32 and then immediately onto the gears 30, thereby creating an interesting or pleasing tactile sensation of touching a smooth hard rolling surface immediately followed by a rough hard rolling surface, all in the same short movement. Moving a thumb or finger in the opposite direction can create a reversed sequence of tactile sensations. If positioned correctly, it may even possible for a user to touch and/or manipulate both tactile features 30, 32 presented on the first planar surface at the same time. Such a configuration can beneficially provide for a variety of tactile sensations and sequences that help maintain a user's interest in touching and manipulating the tactile features on the first face. Nevertheless, it will be appreciated that the one or more gears 30 and the rollerball 32 could be presented on different faces, either individually or in combination with different tactile features, as discussed in more detail below. As shown in Figure 3, a second face 16 of the body 12, preferably opposed to the first face 14, also has a tactile feature presented at the face 16. The tactile feature can be a turning disk (preferably in the form of a dial) 34 rotatably mounted thereon. In one aspect the turning disk 34 may be mounted substantially flush with the face 16 of the body 12 and is capable of being manually turned and rotated on the face by the finger of a user, wherein the finger could be any one of the user's five fingers. The rotation axis of the turning disk 34 is normal to the second face 16. Alternatively the turning disk or dial 34 may be mounted slightly proud of the face 16.

The turning disk 34 can further include a gripping tab in the form of a small protrusion 36 projecting up therefrom for assisting a user to grip the disk 34 and rotate it relative to the face 16. The protrusion 36 is generally located adjacent or near to the circumferential edge of the disk 34 but alternatively may be spaced from the circumferential edge and spaced away from the center of the disk 34. In an alternative form the turning disk 34 may include multiple gripping tabs positioned around the disk 34 and where gripping tabs are protrusions. The gripping tabs may be equally spaced around the circumference or may be randomly distributed around the disk or dial 34. As shown in Figure 4, a third face 18 of the body 12 preferably has another tactile feature that can be a switch 40. Preferably the switch 40 extends across the full side face 18. It may be a toggle switch. The switch 40 can be pivoted by manual manipulation by a user between two positions that mimics an equipment control switch being shifted between on and off positions. The axis of rotation of the switch 40 is parallel to the third face 18. The fourth face 20 of the body 12, opposed to the third face 18 in Figure 4, is shown in Figure 5. The fourth face 20 may present a tactile feature that can comprise a plurality of buttons 42. These are preferably arranged in the form of an array. In the illustrated embodiment, there are four buttons 42 delimiting 20 a notional square and a fifth button 42 positioned centrally within the notional square. The buttons 42 can be moveable inward toward the middle of the body 12 and while being biased outward toward the fourth face 20. One or more of the buttons 42 may provide a tactile feedback when pushed and/or may provide an audible feedback such as, for example, an audible click when pushed inward. In one aspect selected buttons from the five buttons 42 can make an audible click and while other selected buttons make no sound. At least two of the buttons 42 may provide an audible and tactile feedback when pushed or depressed by a user and at least two of the buttons 42 provide a tactile feedback and no audible feedback when pushed or depressed. The height of the buttons above the fourth face 20 after being pushed inward can also vary. One or more of the push buttons 42 may also provide a visual feedback when pushed or depressed. As shown in Figure 6, a fifth face 22 of the body 12 has another tactile feature that can be a shallow recess 44. The recess 44 may have an interesting or unique tactile feel or a surface finish that is different to the rest of the body. In one aspect the recess 44 may have a different tactile feel to the outer surfaces of the body 12, for example the recess may be smoother or rougher than the surface of the fifth face

22. The recess 44 can also include transition regions 48 extending between the fifth face 22 and a base 50 of the recess 44. The transition regions 48 may be rounded or provide a smooth transition from the face 22 to the base 50 of the recess 44. As noted above, the base 50 may include a surface finish that may be different to the surface finish of one or more faces of the body 12. For example the base 50 may be rougher or smoother than the fifth face 22, thereby providing a user with a different tactile sensation when the user touches (i.e. manipulates) the recess. This tactile feature 44 may mimic a worry stone. When fidgeting, a user can manually run their finger along and/or around the recess 44 in the same way that they would do for a worry stone, to calm and soothe the emotions. As shown in Figure 7, a sixth face 24 of the body 12 may have another tactile feature that can be a joystick 46. The joystick preferably comprises an axle 52 projecting outwardly from the sixth face 24 (as seen in figures 4 and 5) and at the end of which may be presented a disk 54. The disk 54 preferably sits proud of the sixth face 24. The disk may alternatively be of another shape that a user can touch and/or grasp. The joystick may be flexibly or rotationally mounted on the body 12, with the disk 54 spaced a small distance above the sixth face 24 of the body, which can be manually manipulated by a user. Typically a user might push back and forth or around in a circle using the flat surface of the disk 54 of the joystick 46. This fidget feature mimics joy sticks that are used in computer games and would be known to computer game users. In one aspect a user may also rotate the disk 54 slightly by twisting the circumference of the disk 54. In use, the handheld touch object 10 can be manually used by a user to occupy their hands. The user typically grasps the touch object 10 in their hand and uses their fingers to manipulate the tactile features that may be presented at the different faces. It will be appreciated that the handheld touch object 10 is shaped and capable of being gripped by the fingers of a hand. In addition, the area of one face of the touch object 10 may occupy between 1 / 6 th to 1 / 3 rd the area of an average user's palm, when the touch object 10 is placed flat on the palm. For example, in one aspect each face of the handheld touch object can have a width and a height ranging from about 2.5cm to about 4.5cm, and preferably a width and a height of about 3.3cm. The width of each face of the touch object 10 may be between 2 cm and 5 cm. More preferably each face of the touch object 10 has width that may be between 2.5cm and 4.5cm. Even more preferably each face of the touch object 10 has a width of between 2.8cm and 3.5cm. The illustrated embodiment, each face has a width of 3.3cm. Since the illustrated embodiment is preferably a cube shaped touch object each face has an equal height and width, and each face is identical in plan perimeter shape. The different tactile features can provide a wide variety of different user experiences, and a user can continuously manipulate or rotate the handheld touch object 10 to select a tactile feature that best fits his or her preference at that moment. For example, the shallow recess 44 with its tactile feel mimicking a worry stone, contrasts with the deliberate action of switching the toggle switch 40 on and off repeatedly. Further the user could conceivably interact with the tactile features on two opposed faces of the body at one time, with different fingers of one hand or different fingers of two hands. For example, in the illustrated embodiment, the user might interact with (or manipulate) with the push buttons on one face and the toggle switch on the opposed face simultaneously. Accordingly, one or more of the tactile features may provide a tactile (i.e. haptic feedback) when manipulated. In addition, one or more of the tactile features may provide an audible feedback when manipulated for example an audible click. Finally, one or more of the tactile features described herein may also provide a visual feedback when manipulated. One or more of the tactile features described herein may provide either one or two or all three of a tactile feedback, audible feedback and visual feedback. For example the recess 44 generally provides a tactile feedback. The toggle switch 40 can provide an audible feedback, tactile feedback and a visual feedback. Similarly the turning disk 34 can also provide a tactile, audible and visual feedback. The pushbuttons 42 preferably provide a tactile and audible feedback. Other combinations are also possible and considered to fall within the scope of the present disclosure. Furthermore, it will also be appreciated that a user can manipulate a plurality of the tactile features on different faces of the touch object body 12, either simultaneously or in a desired sequence, to achieve a desired feedback. This activity may be undertaken using either different fingers of one hand, different fingers of two hands, or both. For example, in the illustrated embodiment, the user might simultaneously interact with (or manipulate) with the push buttons 42 on onethe fourth face 20 using a thumb and the toggle switch 40 on the opposed third face 18 using the middle finger, while all the while stabilizing the object with the index finger pressed against the disk of the joystick 46 presented on the sixth face 24. The user could then rotate the touch object body by 90 degrees around two different axes so that the thumb could simultaneously interact with the rollerball 32 and gears 30 on the first face 16 while the index finger interacted with the toggle switch 40 on the third face 18 and the middle finger interacted with the turning disk 34 on the second face 18. A wide variety of additional simultaneous multi-tactile feature interactions are also possible. In addition to the above, one or more of the tactile features may also comprise different colours or coloured portions to provide a visual feedback as the tactile features are manipulated. For example the rotating risk 34 may have a spoke pattern disposed thereon, where the spokes are a different colour to the rotating disk 34, and the coloured spoked providing a visual feedback as the disk is rotated. In another example each dial 30 may include a colour portion, e.g. a coloured tooth or teeth that provide a visual feedback as the dials are manipulated by a user. The handheld touch object body 12 is formed from rigid material or materials. Preferably the material is a rigid, lightweight material such as for example a plastics material. Preferably the handheld touch object body 12 is moulded from a plastics material. Alternatively the body 12 may be vacuum formed or could be formed using any other suitable processing method. The tactile features are preferably made from a plastics material. The tactile features may be formed of the same plastics material as the body 12, or may be formed from a different plastics material. The tactile features are formed by a moulding process or other suitable process. In one exemplary configuration the tactile features may be of a different colour to the body 12. For example the tactile features are formed of a plastics material that has a different colour to the plastics material used to form the body 12. Alternatively the body 12 and the tactile features are formed of the same coloured material. The touch object 10 may be comprised of a multi part construction, where each part of the body is coupled to the other the other parts to form a complete body. For example the body 12 may be formed of a two part shell construction as seen in figure 8. A first shell 80 and a second shell 90 may be provided that can be connected together to form the outer shell of the body. Within the outer shell of the body a chassis member 95 can be retained. The outers shell may be formed of two equal parts with a split plane (i.e. part line) formed along multiple faces. The two shell parts 80 and 90 may be permanently connected at their interface 96. This may be achieved for example with a permanent snap fit connection or alternatively by adhesive or by a suitable plastic welding process such as for example ultrasonic welding. The chassis is an internal chassis for mounting and/or providing retention features to mount or retain one or more of the tactile features described above (save for the recess which may merely be provided by one of the shells 80/90). The mounting or retaining features retain may the tactile features in a manner that allows movement of the tactile features when manipulated by the user. Some examples of the mounting or retaining features are a recess 97 for the ball (i.e. rollerball) to seat into and be captured by the housing shell. Another example is a hole 98 to receive an axle of the turning disk 34. The shells 90 and 90 may have appropriate shaped opening for the tactile features held or retained by the chassis to protect through. The opening 81 is large enough for a part of the ball 32 to project through but is smaller than the diameter of the ball 32 to help retain the ball in its seated condition. The opening 91 is preferably of a diameter just bigger than the diameter of the disk 34 so that the disk can sit in the opening. For simplicity only two tactile features are shown, associated with the chassis. A skilled person will, based on the disclosure made, be able to design a chassis that provides for an ability to retain and/or mount other tactile features as herein described. The chassis 95 may be secured to one of both shells in a rigid manner. There may be mounts 83 provided at where the chassis and the shell 80 are connected together in a secure manner. Each of the shells are preferably formed from a plastics material. The body 12 is preferably formed of a rigid plastics material meaning the body 12 does not deform visually when squeezed or manipulated by a user's hands or fingers. The body 12 maintains its shape substantially in response to a force being applied to the body. To those skilled in the art to which the invention relates, many changes in construction and widely differing embodiments and applications of the invention will suggest themselves without departing from the scope of the invention as defined in the appended claims. The disclosures and the descriptions herein are purely illustrative and are not intended to be in any sense limiting.

Claims

1. A handheld touch object comprising; a cube shaped body defining six faces, at a first face of the six faces, there is presented a) a plurality of moveable gears arranged in a row, the plurality of gears being able to roll about a common axis, the common axis being parallel to the first face, b) a ball that rolls and is retained by the body and exposed at the first face, at a second face of the six faces there is presented a dial that rotates, the dial mounted substantially flush with the second face, at a third face of the six faces there is presented a switch rotatable back and forth about an axis parallel the third face, at a fourth face of the six faces there is presented five buttons selected from at least one of: a) buttons that make a clicking sound when depressed, and b) buttons that make no sound when depressed, at a fifth face of the six faces there is presented a recess formed in the fifth face, at a sixth face of the six faces there is presented a joystick that glides and pivots.

2. A handheld touch object as claimed in claim 1 wherein a rounded surface transition is provided between all adjacent faces of the six faces.

3. A handheld touch object as claimed in claim 1 or 2 wherein the first face is opposed to the second face, the third face is opposed to the fourth face, and the fifth face is opposed to the sixth face.

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