CARGO PACK FOR ATTACHMENT TO A BICYCLE
20250121899 ยท 2025-04-17
Inventors
- Nicholas BROADBENT (Bristol, GB)
- Robert PHILLIPS (Bristol, GB)
- Olivia COWLEY (Axbridge, GB)
- Martyn LONG (Bristol, GB)
Cpc classification
B62J9/22
PERFORMING OPERATIONS; TRANSPORTING
International classification
Abstract
A cargo pack for attachment to a bicycle comprises an outer casing of a flexible material provided with an opening for loading the pack. The outer casing has oppositely disposed side walls and an attachment wall extending between the side walls and intended to lie adjacent a frame member of the bicycle. The attachment wall is provided with at least one mounting block having a surface for contact with the frame member and a securing flange situated within the outer casing and secured to the material of the outer casing. The outer casing is provided with a stiffening structure for enhancing the rigidity of the attachment wall, the stiffening structure comprising a pair of rods which extend along the attachment wall adjacent the respective side walls, the rods engaging the securing flanges to retain the rods with respect to the mounting blocks.
Claims
1. A cargo pack for attachment to a bicycle, the pack comprising an outer casing of a flexible material provided with an opening for loading the pack, the outer casing having oppositely disposed side walls and an attachment wall extending between the side walls and intended to lie adjacent a frame member of the bicycle, the attachment wall being provided with at least one mounting block having a surface for contact with the frame member and a securing flange secured to the material of the outer casing, the outer casing being provided with a stiffening structure for enhancing the rigidity of the attachment wall, the stiffening structure comprising a pair of rods which extend along the attachment wall adjacent the respective side walls, the rods engaging the securing flange to retain the rods with respect to the mounting block.
2. A cargo pack as claimed in claim 1, wherein the pack is elongate and the rods extend in the lengthwise direction of the pack.
3. A cargo pack as claimed in claim 2, wherein the pack is tapered in the lengthwise direction, the rods being inclined to each other so as to converge in the direction of taper.
4. A cargo pack as claimed in claim 1, wherein the outer casing has oppositely disposed end walls closing opposite ends of the pack.
5. A cargo pack as claimed in claim 4, wherein at least one of the end walls is provided with an aperture for the passage of a flexible supply element.
6. A cargo pack as claimed in claim 5, wherein the aperture is provided with a closure.
7. A cargo pack as claimed in claim 1, wherein the securing flange of the mounting block is welded to the material of the attachment wall.
8. A cargo pack as claimed in claim 1, wherein the attachment wall is provided with at least two of the mounting blocks provided with respective securing flanges, the rods extending between the mounting blocks and engaging the securing flanges.
9. A cargo pack as claimed in claim 1, wherein the securing flange or at least one of the securing flanges extends within the pack and is provided with channels which receive the respective rods, thereby to secure the rods to the securing flange.
10. A cargo pack as claimed in claim 9, wherein each channel of the securing flange, or of at least one of the securing flanges, has a respective slot along its length whereby the rod is insertable into the channel through the slot.
11. A cargo pack as claimed in claim 10, wherein the width of the slot is less than the transverse dimension of the rod whereby the rod is insertable into the channel with a snap action.
12. A cargo pack as claimed in claim 9, wherein the channels of the securing flange, or of at least one of the securing flanges is tubular whereby the rod is insertable into the channel by lengthwise sliding.
13. A cargo pack as claimed in claim 8, wherein a guide element is secured to the attachment wall between the mounting blocks.
14. A cargo pack as claimed in claim 13, wherein the guide element comprises a flexible material having passages through which the rods extend.
15. A cargo pack as claimed in claim 14, wherein the flexible material is welded to the material of the attachment wall.
16. A cargo pack as claimed in claim 1, wherein the opening is an elongate opening provided in one of the side walls.
17. A cargo pack as claimed in claim 16, wherein the pack is elongate and the rods and the opening extend in the lengthwise direction of the pack.
18. A cargo pack as claimed in claim 16, wherein an elongate reinforcing element is provided on the respective side wall adjacent the opening.
19. A cargo pack as claimed in claim 18, wherein the elongate reinforcing element is situated in an elongate pocket provided on the internal side of the respective side wall.
20. A cargo pack as claimed in claim 1, wherein a closure means is provided for closing the opening.
21. A method of assembling a cargo pack for attachment to a bicycle, the pack comprising an outer casing of a flexible material provided with an opening for loading the pack, the outer casing having oppositely disposed side walls and an attachment wall extending between the side walls and intended to lie adjacent a frame member of the bicycle, the attachment wall being provided with at least one mounting block having a surface for contact with the frame member and a securing flange secured to the material of the outer casing, the outer casing being provided with a stiffening structure for enhancing the rigidity of the attachment wall, the stiffening structure comprising a pair of rods which extend along the attachment wall adjacent the respective side walls, the rods engaging the securing flange to retain the rods with respect to the mounting block, wherein the outer casing is provided with an aperture for the passage of a flexible supply element, the method comprising inserting the rods through the aperture into engagement with the securing flange.
22. A method as claimed in claim 21 of assembling a cargo pack wherein the securing flange or at least one of the securing flanges extends within the pack and is provided with channels which receive the respective rods, thereby to secure the rods to the securing flange, in which method the rods are inserted through the aperture into the respective channels.
23. A method as claimed in claim 22 of assembling a cargo pack wherein each channel of the securing flange, or of at least one of the securing flanges, has a respective slot along its length whereby the rod is insertable into the channel through the slot, in which method the rods are positioned adjacent the respective channels and are displaced into the respective channel through the slot.
24. A method as claimed in claim 22 of assembling a cargo pack wherein the channels of the securing flange, or of at least one of the securing flanges, is tubular whereby the rod is insertable into the channel by lengthwise sliding, in which method the rods are inserted into one end of the respective channels and displaced into the respective channels by linear sliding.
25. A method as claimed in claim 22 of assembling a cargo pack wherein the guide element comprises a flexible material having passages through which the rods extend, in which method the rods are passed through the passages provided in the guide element.
Description
[0023] For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which:
[0024]
[0025]
[0026]
[0027]
[0028]
[0029]
[0030]
[0031]
[0032]
[0033]
[0034] Although the bicycle shown in
[0035] Although not shown, the bicycle may be provided with one or more luggage racks, panniers and other accessories for carrying the equipment needed for multi-day touring.
[0036] The bike of
[0037] Some frame members of the frame 2 are provided with brazed-in tapped inserts (not shown) to which accessories such as cargo packs can be fixed. The tapped inserts can also be used to secure other accessories such as a water bottle or a pump.
[0038] It is sometimes desirable to carry additional cargo packs on the frame at locations where there are no tapped inserts, or where existing tapped inserts are not suitable. For example, as shown in
[0039]
[0040] The bag 32 has four sides comprising an attachment wall 40, two side walls 42 (only one visible in
[0041] As shown in
[0042] As shown in
[0043] The front wall 46 is also provided with a front mount 110 for engagement with the down tube 24.
[0044] The bag is provided with mounting blocks 56 for use in securing the cargo pack 32 to a frame member, such as the top tube 22, of the bike. The mounting blocks 56 are generally of the form of those disclosed in GB2617256, to which reference is directed. One or more of the mounting blocks 56 can be fitted with a strap 34, as appropriate, to secure the cargo pack. Referring to
[0045]
[0046] Each mounting block 56 comprises a mount 63 and a securing flange 64. The securing flange 64 is disposed against the inner surface of the attachment wall 40 and secured to the attachment wall 40, for example by RF welding. The securing flange 64 may be formed integrally with the mount 63, or alternatively may be formed separately and bonded or otherwise secured to the mount 63. The mount 63 projects from the securing flange 64 through an opening 66 formed in the attachment wall 40 so that its top surface, which is provided with a pad 67 of resilient material, is presented for positioning against the top tube 22.
[0047] In the embodiment shown in the drawings, there are three mounting blocks 56, although two, or more than three, mounting blocks may be provided.
[0048] Referring to
[0049] At the corners of the mount 63 there are ribs 112 which project upwardly from the securing flange 64. These ribs served to align the mounting blocks 56 within the openings 66 in the attachment wall 40 of the pack 32.
[0050]
[0051] The mounting blocks 56B and 56C are generally similar to each other, although differ in some details and in dimensions, because the pack 32 tapers slightly from front to rear, which means that the rear mounting block 56C is slightly narrower than the intermediate mounting block 56B.
[0052] The weldable mounting blocks 56 are preferably made from a very hard grade of TPU which can be welded to the material of the attachment wall 40. The harder the grade the stiffer the pack is to stop it ballooning. The stiffening structure 60 thus comprises stiff blocks 56 connecting to the stiff carbon rods 62 creating a rigid structure 60. The resilient pad 67 conforms well to the frame so it remains in place without the danger of scratching the frame tube.
[0053] If the block and pad 56, 67 were formed as an integral component it either wouldn't be stiff enough to create a sufficiently rigid structure 60 or it would be too stiff to attach nicely without scratching the frame tube.
[0054]
[0055]
[0056]
[0057]
[0058] For use, the mounting blocks 56 and the end piece 84 are fixed to the inner surface of the attachment wall 40 of the cargo pack 32, for example by radio-frequency (RF) welding of the securing flanges 64 to the material of the attachment wall 40. In addition, guide elements 94 (see
[0059] The guide elements 94 have a central securing region 96, optionally provided with apertures 98, and lateral passages 100, similar in form to the channels 68 of the securing flanges 64, for receiving the rods 62. The central regions 96 are secured to the inner surface of the attachment wall 40, for example by bonding or RF welding.
[0060] As shown in
[0061] The battens 104 are made from any suitable stiff and lightweight material, for example metal alloy, or a plastics material (such as a fibre reinforced plastics material). In a preferred embodiment, the battens 104 are made from a carbon reinforced plastics material. The battens 104 are dimensioned to provide the side walls 42 with sufficient stiffness to reduce bulging of the material of the bag 32 outwardly when the bag 32 is packed with cargo. This avoids contact of the side walls 42 with the rider's legs. The battens 104 have the additional effect of providing greater rigidity to the bag 32 so as to avoid overstressing of the zipper or other closure mechanism which closes the opening 54, when the bag 32 is packed with cargo.
[0062] The battens 104 may be fitted within the pockets 102 in a variety of ways, but one particularly advantageous arrangement is for the pockets 102 to be open at the ends nearer the end wall 46. This measure enables the battens 104 to be inserted through the aperture 108 and then passed into the open ends of the pockets 102 until they are fully positioned within the pockets 106.
[0063] The stiffening structure 60 is assembled within the bag as follows. The mounting blocks 56 are fixed at the openings 66 in the attachment wall 40. The securing flanges 64 are fixed to the inside surface of the attachment wall 40 so that the mounts 63 project through the openings. The ribs 112 engage the corners of the openings 66 to align the mounting blocks 56 with the openings 66 during the attachment process. The guide elements 94 are similarly secured to the inside surface of the attachment wall 40.
[0064] Referring to
[0065]
[0066] A similar procedure is adopted for the rod 62 on the opposite side of the pack 32 to form the completed stiffening structure 60.
[0067] Although the process illustrated in
[0068] It will be appreciated that the number and spacing of mounting blocks 56 can be adjusted to suit the dimensions of any particular configuration of the pack 32. For example, a shorter pack may require only two mounting blocks 56, with a single guide element 94 situated between them. For a longer pack 32, three mounting blocks 56 may be sufficient, but the spacer piece 82 may be employed between two of the mounting blocks 56 in order to enhance the rigidity of the attachment wall 14. Guide elements 94 may be provided on each side of the spacer piece 82. Consequently, the modular construction of the stiffening structure 60 enables common parts, such as the mounting blocks 56, the guide elements 94 and the end piece 84 to be combined in various configurations to provide stiffening structures 60 suitable for a variety of sizes and shapes of cargo packs 32. The carbon rods 62 can be cut to length to suit the cargo pack in question.
[0069] For the avoidance of doubt, the present application extends to the subject-matter described in the following numbered Statements:
[0070] Statement 1. A cargo pack for attachment to a bicycle, the pack comprising an outer casing of a flexible material provided with an opening for loading the pack, the outer casing having oppositely disposed side walls and an attachment wall extending between the side walls and intended to lie adjacent a frame member of the bicycle, the attachment wall being provided with at least one mounting block having a surface for contact with the frame member and a securing flange secured to the material of the outer casing, the outer casing being provided with a stiffening structure for enhancing the rigidity of the attachment wall, the stiffening structure comprising a pair of rods which extend along the attachment wall adjacent the respective side walls, the rods engaging the securing flange to retain the rods with respect to the mounting block.
[0071] Statement 2. A cargo pack as in Statement 1, in which the pack is elongate and the rods extend in the lengthwise direction of the pack.
[0072] Statement 3. A cargo pack as in Statement 2, in which the pack is tapered in the lengthwise direction, the rods being inclined to each other so as to converge in the direction of taper.
[0073] Statement 4. A cargo pack as in any one of Statements 1 to 3, in which the outer casing has oppositely disposed end walls closing opposite ends of the pack.
[0074] Statement 5. A cargo pack as in Statement 4, in which at least one of the end walls is provided with an aperture for the passage of a flexible supply element.
[0075] Statement 6. A cargo pack as in Statement 5, in which the aperture is provided with a closure.
[0076] Statement 7. A cargo pack as in any one of the preceding Statements, in which the securing flange of the mounting block is welded to the material of the attachment wall.
[0077] Statement 8. A cargo pack as in any one of the preceding Statements, in which the attachment wall is provided with at least two of the mounting blocks provided with respective securing flanges, the rods extending between the mounting blocks and engaging the securing flanges.
[0078] Statement 9. A cargo pack as in any one of the preceding Statements, in which the securing flange or at least one of the securing flanges extends within the pack is provided with channels which receive the respective rods, thereby to secure the rods to the securing flange.
[0079] Statement 10. A cargo pack as in Statement 9, in which each channel of the securing flange, or of at least one of the securing flanges, has a respective slot along its length whereby the rod is insertable into the channel through the slot.
[0080] Statement 11. A cargo pack as in Statement 10, in which the width of the slot is less than the transverse dimension of the rod whereby the rod is insertable into the channel with a snap action.
[0081] Statement 12. A cargo pack as in any one of Statements 9 to 11, in which the channels of the securing flange, or of at least one of the securing flanges is tubular whereby the rod is insertable into the channel by lengthwise sliding.
[0082] Statement 13. A cargo pack as in Statement 8 or in any one of Statements 9 to 12 when appendant to Statement 8, in which a guide element is secured to the attachment wall between the mounting blocks.
[0083] Statement 14. A cargo pack as in Statement 13, in which the guide element comprises a flexible material having passages through which the rods extend.
[0084] Statement 15. A cargo pack as in Statement 14, in which the flexible material is welded to the material of the attachment wall.
[0085] Statement 16. A cargo pack as in any one of the preceding Statements, in which the opening is an elongate opening provided in one of the side walls.
[0086] Statement 17. A cargo pack as in Statement 16 when appendant to Statement 2, in which the opening extends in the lengthwise direction of the pack.
[0087] Statement 18. A cargo pack as in Statement 16 or 17, in which an elongate reinforcing element is provided on the respective side wall adjacent the opening.
[0088] Statement 19. A cargo pack as in Statement 18, in which the elongate reinforcing element is situated in an elongate pocket provided on the internal side of the respective side wall.
[0089] Statement 20. A cargo pack as in any one of the preceding Statements, in which a closure means is provided for closing the opening.
[0090] Statement 21. A method of assembling a cargo pack as in Statement 5 or any one of Statements is 6 to 20 when appendant to Statement 5, the method comprising inserting the rods through the aperture into engagement with the securing flange.
[0091] Statement 22. A method as in Statement 21 of assembling a cargo pack in accordance with Statement 9, in which the rods are inserted through the aperture into the respective channels.
[0092] Statement 23. A method as in Statement 22 of assembling a cargo pack in accordance with Statement 10, in which the rods are positioned adjacent the respective channels and are displaced into the respective channel through the slot.
[0093] Statement 24. A method as in Statement 22 of assembling a cargo pack in accordance with Statement 12, in which the rods are inserted into one end of the respective channels and displaced into the respective channels by linear sliding.
[0094] Statement 25. A method as in Statement 22 of assembling a cargo pack in accordance with Statement 14, in which the rods are passed through the passages provided in the guide element.