A vehicle body reinforcement structure and a vehicle

Abstract

The present application relates to a kind of vehicle body reinforcement structure and car, and the vehicle body reinforcement structure includes: front pillar reinforcement assembly, front pillar reinforcement assembly includes first reinforcement and support piece;First reinforcement, first reinforcement includes first mounting portion and second mounting portion, first mounting portion is located in the end of second mounting portion, and first mounting portion extends along first direction (Z), second mounting portion extends along second direction (X), wherein, first direction (Z) and second direction (X) are two directions of intersection, first direction (Z) is the direction perpendicular to the ground;Support piece, support piece is the shell structure with inner cavity, support piece is fixed in first mounting portion, and a box structure is formed between support piece and first reinforcement.It is thus that the front pillar reinforcement assembly provided in the present application embodiment can not only improve the overall strength, realize the performance improvement of crash, while, the weight of front pillar reinforcement assembly overall can be reduced, meet the lightweight design demand of front pillar reinforcement assembly.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to a body reinforcement structure and an automobile. Background Technology

[0002] The lower section of the A-pillar reinforcement structure is a crucial vehicle body component subject to collision safety regulations. It directly affects the overall strength of the vehicle and protects the safety of occupants in the event of a collision.

[0003] Currently, the lower section reinforcement structure of the A-pillar is a right-angle structure, mainly to meet strength requirements and protect the front door frame. However, the strength of the joint between the lower end and the door sill beam has not been fully considered. As a result, the lower section reinforcement structure of the A-pillar has low strength and cannot take into account the strength of the lower end of the front door frame and the rigidity of the whole vehicle after a collision. Summary of the Invention

[0004] One objective of this invention is to provide a vehicle body reinforcement structure to solve the problem of low strength in the lower section reinforcement structure of the A-pillar in the prior art; another objective is to provide a vehicle.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, embodiments of the present invention provide a vehicle body reinforcement structure, the vehicle body reinforcement structure comprising:

[0007] A front pillar reinforcement assembly, the front pillar reinforcement assembly including a first reinforcement member and a support member;

[0008] The first reinforcing member includes a first mounting portion and a second mounting portion. The first mounting portion is located at the end of the second mounting portion, and the first mounting portion extends along a first direction (Z), while the second mounting portion extends along a second direction (X). The first direction (Z) and the second direction (X) are two intersecting directions, and the first direction (Z) is a direction perpendicular to the ground.

[0009] The support member is a shell structure with an inner cavity. The support member is fixed to the first mounting part, and a box structure is formed between the support member and the first reinforcing member.

[0010] Optionally, the first reinforcing member includes a first overlapping surface, a second overlapping surface, and a third overlapping surface;

[0011] The first overlapping surface is located at the skirt structure formed by the first reinforcing member in the second direction (X) after the second mounting part and the support member are connected;

[0012] The second overlapping surface is located at the skirt structure formed by the first reinforcing member in the first direction (Z) after the first mounting part and the support member are connected;

[0013] The third overlapping surface is located at the skirt structure formed in the second direction (X) of the first reinforcing member after the first mounting part and the support member are connected.

[0014] Optionally, the front pillar reinforcement assembly further includes a sill beam extending along the second direction (X) and connected to the first lap joint.

[0015] Optionally, the front pillar reinforcement assembly further includes a second reinforcement member, which extends along the first direction (Z) and is connected to the second overlapping surface.

[0016] Optionally, the vehicle body reinforcement structure also includes a lower inner front pillar panel, which is connected to the third overlapping surface.

[0017] Optionally, the first reinforcing member has an L-shaped cross-section in the first direction (Z).

[0018] Optionally, the cross-section of the first reinforcing member in the first direction (Z) includes a long side and a short side;

[0019] The short side of the cross section is located at the end of the long side of the cross section. The long side of the cross section extends along the first direction (Z), and the short side of the cross section extends along a third direction (Y), wherein the third direction (Y) is a direction that intersects both the first direction (Z) and the second direction (X).

[0020] Optionally, the cross-section of the support member in the first direction (Z) includes a first support arm, a second support arm, and a support member body;

[0021] The first support arm and the second support arm are located at both ends of the support body, and a U-shaped structure is formed between the first support arm, the second support arm and the support body. The cavity formed by the U-shaped structure extends along the third direction (Y), wherein the third direction (Y) is a direction that intersects with both the first direction (Z) and the second direction (X).

[0022] Optionally, the support member has multiple cavity structures.

[0023] Secondly, embodiments of the present invention provide an automobile, the automobile including the body reinforcement structure described in any embodiment of the first aspect.

[0024] The beneficial effects of this invention are:

[0025] As can be seen from the above embodiments, in this embodiment of the invention, since the first reinforcing member includes a first mounting portion and a second mounting portion, with the first mounting portion located at the end of the second mounting portion and extending along a first direction (Z) and the second mounting portion extending along a second direction (X), the force on the first mounting portion can be dispersed to the second mounting portion, causing the direction of the force to change on the second mounting portion, thereby dispersing the force on the first reinforcing member and avoiding stress concentration. Furthermore, since the support member is a shell structure with an inner cavity, and the support member is fixed to the first mounting portion, a box structure is formed between the support member and the first reinforcing member. Therefore, some of the stress generated by the impact can be absorbed through the inner cavity formed by this box structure. Moreover, since a closed cavity structure is formed between the support member and the first reinforcing member, the overall weight of the front pillar reinforcement assembly can be reduced, which is beneficial for the lightweight design of the front pillar reinforcement assembly. In summary, the front pillar reinforcement assembly provided by this embodiment of the invention can not only improve the overall strength and achieve improved collision performance, but also reduce the overall weight of the front pillar reinforcement assembly, meeting the lightweight design requirements of the front pillar reinforcement assembly. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 One of the schematic diagrams of the front pillar reinforcement assembly provided in the embodiments of the present invention;

[0028] Figure 2 A second schematic diagram of the front pillar reinforcement assembly structure provided for an embodiment of the present invention;

[0029] Figure 3 The front pillar reinforcement assembly provided in the embodiments of the present invention is along Figure 2 A schematic diagram of the cross-sectional structure along the AA direction;

[0030] Figure 4 The front pillar reinforcement assembly provided in the embodiments of the present invention is along Figure 2 A schematic diagram of the cross-sectional structure in the BB direction.

[0031] Among them, 1-front pillar reinforcement assembly; 11-first reinforcement; 12-support; 13-sill beam; 14-second reinforcement; 15-lower inner panel of front pillar; 101-first mounting part; 102-second mounting part; 111-first overlapping surface; 112-second overlapping surface; 113-third overlapping surface; 114-long side of cross section; 115-short side of cross section; 121-first support arm; 122-second support arm; 123-main body of support. Detailed Implementation

[0032] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0033] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0034] This embodiment proposes a vehicle body reinforcement structure, which includes a front pillar reinforcement assembly 1. Figure 1 This is one of the schematic diagrams of the front pillar reinforcement assembly structure provided in the embodiments of the present invention. Figure 2 A second schematic diagram of the front pillar reinforcement assembly structure provided for an embodiment of the present invention, as shown below. Figure 1 and Figure 2 As shown, the vehicle body reinforcement structure includes a front pillar reinforcement assembly 1, which includes a first reinforcement member 11 and a support member 12. The first reinforcement member 11 includes a first mounting portion 101 and a second mounting portion 102. The first mounting portion 101 is located at the end of the second mounting portion 102, and the first mounting portion 101 extends along a first direction (Z), while the second mounting portion 102 extends along a second direction (X). The first direction (Z) and the second direction (X) are two intersecting directions, and the first direction (Z) is a direction perpendicular to the ground. The support member 12 is a shell structure with an inner cavity. The support member 12 is fixed to the first mounting portion 101, and a box structure is formed between the support member 12 and the first reinforcement member 11.

[0035] Among them, the front pillar reinforcement assembly 1 is part of the car body. The front pillar reinforcement assembly 1 is the connecting pillar connecting the roof and the front compartment at the left and right front of the car body. It is located between the engine compartment and the driver's compartment. It is mainly used to withstand the impact force of the car, which can fully ensure the safety of the driver and passengers, and at the same time play a role in supporting the vehicle structure.

[0036] In this embodiment of the invention, the front pillar reinforcement assembly 1 includes a first reinforcement member 11 and a support member 12. The first reinforcement member 11 is a plate-like structure, including a first mounting portion 101 and a second mounting portion 102. The first mounting portion 101 extends along a first direction (Z), that is, the first mounting portion 101 is a plate-like structure perpendicular to the direction of the ground. The second mounting portion 102 extends along a second direction (X), that is, the first mounting portion 101 and the second mounting portion 102 form an "L"-shaped integral structure. In this way, the force on the first mounting portion 101 can be distributed to the second mounting portion 102, causing the direction of the force to change on the second mounting portion 102, thereby dispersing the force on the first reinforcement member 11, which is beneficial for stress dispersion. The first direction is as follows: Figure 1 and Figure 2 The direction indicated by Z in the diagram, and the second direction as shown in the diagram. Figure 1 and Figure 2 The direction indicated by X in the diagram.

[0037] Furthermore, the front pillar reinforcement assembly 1 includes a support member 12, which is a shell structure. Specifically, the support member 12 has an internal cavity; that is, it is bent away from the first reinforcement member 11 to form a groove structure. In other words, the edge of the support member 12 is bent towards the first reinforcement member 11 to form a one-way open shell structure. Then, the support member 12 is fastened to the first mounting part 101, forming a box structure between the support member 12 and the first reinforcement member 11. It should be noted that the support member 12 and the first reinforcement member 11 can be connected by resistance welding, forming a closed cavity structure between them. Thus, because the support member 12 and the first reinforcement member 11 form a box structure, when the front pillar reinforcement assembly 1 is impacted, some of the impact stress can be absorbed through the internal cavity formed by this box structure. Furthermore, because the support member 12 and the first reinforcement member 11 form a closed cavity structure, the overall weight of the front pillar reinforcement assembly 1 can be reduced, which is beneficial for the lightweight design of the front pillar reinforcement assembly 1.

[0038] As can be seen from the above embodiments, in this embodiment of the invention, since the first reinforcing member 11 includes a first mounting portion 101 and a second mounting portion 102, with the first mounting portion 101 located at the end of the second mounting portion 102 and extending along a first direction (Z) and the second mounting portion 102 extending along a second direction (X), the force on the first mounting portion 101 can be dispersed to the second mounting portion 102, causing the direction of the force to change on the second mounting portion 102, thereby dispersing the force on the first reinforcing member 11 and avoiding stress concentration. Furthermore, since the support member 12 is a shell structure with an inner cavity, and the support member 12 is fixed to the first mounting portion 101, a box structure is formed between the support member 12 and the first reinforcing member 11. Therefore, the inner cavity formed by this box structure can absorb some of the stress generated by the impact. Also, since a closed cavity structure is formed between the support member 12 and the first reinforcing member 11, the overall weight of the front pillar reinforcement assembly 1 can be reduced, which is beneficial for the lightweight design of the front pillar reinforcement assembly 1. In summary, the front pillar reinforcement component 1 provided by the embodiments of the present invention can not only improve the overall strength and improve the collision performance, but also reduce the overall weight of the front pillar reinforcement component 1, thus meeting the lightweight design requirements of the front pillar reinforcement component 1.

[0039] Next, we will introduce the structure of the front pillar reinforcement assembly 1 and the assembly relationship between the components:

[0040] In some embodiments, the first reinforcing member 11 includes a first overlapping surface 111, a second overlapping surface 112, and a third overlapping surface 113; the first overlapping surface 111 is located at the skirt structure formed on the first reinforcing member 11 in the second direction (X) after the second mounting portion 102 and the support member 12 are connected; the second overlapping surface 112 is located at the skirt structure formed on the first reinforcing member 11 in the first direction (Z) after the first mounting portion 101 and the support member 12 are connected; and the third overlapping surface 113 is located at the skirt structure formed on the first reinforcing member 11 in the second direction (X) after the first mounting portion 101 and the support member 12 are connected.

[0041] It should be noted that the first overlapping surface 111, the second overlapping surface 112, and the third overlapping surface 113 are the reserved spaces on the first reinforcing member 11 after the support member 12 and the first reinforcing member 11 are connected. That is, the first overlapping surface 111 is the skirt structure formed by the first reinforcing member 11 in the second direction (X) after the support member 12 is installed in the second mounting part 102; the second overlapping surface 112 is the skirt structure formed by the first reinforcing member 11 in the first direction (Z) after the support member 12 is installed in the first mounting part 101; and the third overlapping surface 113 is the skirt structure formed by the first reinforcing member 11 in the first direction (Z) after the support member 12 is installed in the first mounting part 101.

[0042] It should also be noted that since the first overlapping surface 111, the second overlapping surface 112, and the third overlapping surface 113 are located at different parts of the first reinforcing member 11, when the first overlapping surface 111, the second overlapping surface 112, and the third overlapping surface 113 are connected to other components of the vehicle body reinforcing structure, the other components connected to the first reinforcing member 11 are located in different directions. This is beneficial for dispersing stress from the first reinforcing member 11 to other components and for improving the strength of the vehicle body reinforcing structure.

[0043] Furthermore, the front pillar reinforcement assembly 1 also includes a sill beam 13, which extends along a second direction (X) and is connected to the first lap surface 111.

[0044] It should be noted that the sill beam 13 can be a square frame column structure or other structures. When the sill beam 13 is a square frame column structure, it can be filled with materials such as carbon fiber foam, aluminum-reinforced polycarbonate, and composite elastic materials to enhance the energy and load of the sill beam 13 during a collision, thereby absorbing collision energy. Since the sill beam 13 extends along the second direction (X) and is connected at the first overlapping surface 111, its position is relatively stable under the combined restraint of the first reinforcing member 11 and the supporting member 12. In other words, the sill beam 13 is covered by the first reinforcing member 11 and the supporting member 12 in the third direction (Y). When the sill beam 13 is subjected to an impact force in the third direction (Y), it will not roll over or deform. This improves the collision performance of the vehicle body reinforcement structure while meeting the requirements of front-end weight reduction.

[0045] The further front pillar reinforcement assembly 1 also includes a second reinforcement member 14, which extends along a first direction (Z) and is connected at a second overlapping surface 112. Thus, the second reinforcement member 14 is connected via the second overlapping surface 112 to form an integral front pillar reinforcement assembly 1, thereby providing installation space for the second reinforcement member 14 and ensuring that the installation of the support member 12 does not affect the connection of the second reinforcement member 14. It should be noted that in this embodiment of the invention, the first reinforcement member 11 is an upper A-pillar reinforcement member of the vehicle, and the second reinforcement member 14 is a lower A-pillar reinforcement member.

[0046] Furthermore, the vehicle body reinforcement structure also includes a lower front pillar inner panel 15, which is connected at the third overlapping surface 113. It should be noted that the connection between the lower front pillar inner panel 15 and the first reinforcing member 11 at the third overlapping surface 113 allows the lower front pillar inner panel 15 and the first reinforcing member 11 to form an integral structure, further enhancing the overall strength of the vehicle body reinforcement structure. In addition, it should be noted that the lower front pillar inner panel 15 can be a relatively flat longitudinal straight plate, or it can be a shell structure with a certain accommodating cavity, that is, the lower front pillar inner panel 15 and the first reinforcing member 11 form a certain accommodating cavity to accommodate wiring harnesses and sound insulation cotton.

[0047] In some embodiments, such as Figure 3 As shown, the first reinforcing member 11 has an L-shaped cross-section in the first direction (Z). It should be noted that because the first reinforcing member 11 has an L-shaped cross-section in the first direction (Z), a limiting protrusion structure is present at the location of the first overlapping surface 111 of the first reinforcing member 11, away from the first overlapping surface 111. Thus, after the sill beam 13 is fixed to the first overlapping surface 111, the limiting protrusion structure away from the first overlapping surface 111 and the support member 12 jointly limit its movement, ensuring that the sill beam 13 is covered by the first reinforcing member 11 and the support member 12 in the third direction (Y). When the sill beam 13 is subjected to an impact force in the third direction (Y), it will not roll over or deform, thus improving the collision performance of the vehicle body reinforcement structure while meeting the requirements of front-end weight reduction.

[0048] Optional, such as Figure 3 As shown, the first reinforcing member 11 has a cross-section in the first direction (Z) including a long side 114 and a short side 115; the short side 115 is located at the end of the long side 114, the long side 114 extends along the first direction (Z), and the short side 115 extends along a third direction (Y), wherein the third direction (Y) is a direction that intersects both the first direction (Z) and the second direction (X).

[0049] It should be noted that, since the first reinforcing member 11 has a cross-section in the first direction (Z) consisting of a long side 114 and a short side 115, with the short side 115 located at the end of the long side 114, and the long side 114 extending along the first direction (Z) and the short side 115 extending along the third direction (Y), the extension direction of the long side 114 intersects with the force direction (third direction) of the side impact test of the whole vehicle. That is, the long side 114 is located in the impact direction (third direction) of the side impact test, and the short side 115 is consistent with the force direction (third direction) of the side impact test. In other words, the short side 115 is located in the non-force direction of the side impact test. Furthermore, since the sill beam 13 is connected to the first overlapping surface 111, which is located at the skirt structure formed by the second reinforcing member 11 in the second direction (X) after the second mounting part 102 and the support member 12 are connected, the sill beam 13 is positioned at the location of the short side 115. In this way, the first reinforcing member 11 and the supporting member 12 at the short side 115 of the cross section together limit the sill beam 13, thus preventing rollover or deformation when the sill beam 13 is subjected to a third-direction (Y) impact force. This improves the collision performance of the vehicle body reinforcement structure while meeting the requirements of front-end weight reduction. At the same time, the sill beam 13 will not deflect in the third-direction (Y) when subjected to a third-direction (Y) impact force, further enhancing the safety of the occupants.

[0050] In some embodiments, such as Figure 4 As shown, the cross-section of the support member 12 in the first direction (Z) includes a first support arm 121, a second support arm 122, and a support member body 123; the first support arm 121 and the second support arm 122 are located at the two ends of the support member body 123 respectively, and a U-shaped structure is formed between the first support arm 121, the second support arm 122 and the support member body 123. The cavity formed by the U-shaped structure extends along a third direction (Y), wherein the third direction (Y) is a direction that intersects with both the first direction (Z) and the second direction (X).

[0051] It should be noted that the first support arm 121, the second support arm 122, and the main support body 123 form a U-shaped structure. After the support member 12 and the first reinforcing member 11 are connected, a box-like structure with a cavity is formed. This allows the box-like structure formed by the support member 12 and the first reinforcing member 11 to effectively absorb energy and provide cushioning, further strengthening the structure of the door hinge area. This ensures that the door hinge mounting structure will not be damaged during a collision, preventing secondary injuries to the occupants and improving collision performance. Furthermore, the cavity formed by the U-shaped structure extends along the third direction (Y), meaning that the cavity formed by the U-shaped structure is aligned with the force direction of the side impact test. This facilitates the absorption of energy generated during the collision and provides a certain degree of cushioning.

[0052] In some embodiments, the support member 12 has multiple cavity structures. These cavity structures not only create multiple stress dispersion points but also reduce the overall weight of the support member 12. In summary, the vehicle body reinforcement structure provided by the embodiments of the present invention is simple in structure, has good stress distribution, can improve the overall strength of the vehicle body reinforcement structure, and is lighter and safer while meeting the same performance requirements.

[0053] As can be seen from the above embodiments, in this embodiment of the invention, since the first reinforcing member 11 includes a first mounting portion 101 and a second mounting portion 102, with the first mounting portion 101 located at the end of the second mounting portion 102 and extending along a first direction (Z) and the second mounting portion 102 extending along a second direction (X), the force on the first mounting portion 101 can be dispersed to the second mounting portion 102, causing the direction of the force to change on the second mounting portion 102, thereby dispersing the force on the first reinforcing member 11 and avoiding stress concentration. Furthermore, since the support member 12 is a shell structure with an inner cavity, and the support member 12 is fixed to the first mounting portion 101, a box structure is formed between the support member 12 and the first reinforcing member 11. Therefore, the inner cavity formed by this box structure can absorb some of the stress generated by the impact. Also, since a closed cavity structure is formed between the support member 12 and the first reinforcing member 11, the overall weight of the front pillar reinforcement assembly 1 can be reduced, which is beneficial for the lightweight design of the front pillar reinforcement assembly 1. In summary, the front pillar reinforcement component 1 provided by the embodiments of the present invention can not only improve the overall strength and improve the collision performance, but also reduce the overall weight of the front pillar reinforcement component 1, thus meeting the lightweight design requirements of the front pillar reinforcement component 1.

[0054] This embodiment also proposes a car, including a car body, on which a body reinforcement structure as described in any of the above embodiments is provided.

[0055] This invention improves the overall strength of the vehicle body by installing a body reinforcement structure, resulting in a lighter vehicle body and enhanced safety while meeting the same performance requirements.

[0056] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention.

Claims

1. A vehicle body reinforcement structure, characterized in that, The vehicle body reinforcement structure includes: A front pillar reinforcement assembly, comprising a first reinforcement member, a door sill beam, and a support member; The first reinforcing member includes a first mounting portion and a second mounting portion. The first mounting portion is located at the end of the second mounting portion, and the first mounting portion extends along a first direction (Z), while the second mounting portion extends along a second direction (X). The first direction (Z) and the second direction (X) are two intersecting directions, and the first direction (Z) is a direction perpendicular to the ground. The support member is a shell structure with an inner cavity. The support member is fixed to the first mounting part, and a box structure is formed between the support member and the first reinforcing member. The first reinforcing member includes a first overlapping surface, a second overlapping surface, and a third overlapping surface; The first overlapping surface is located at the skirt structure formed by the first reinforcing member in the second direction (X) after the second mounting part and the support member are connected; The second overlapping surface is located at the skirt structure formed by the first reinforcing member in the first direction (Z) after the first mounting part and the support member are connected; The third overlapping surface is located at the skirt structure formed in the second direction (X) of the first reinforcing member after the first mounting part and the support member are connected; The first reinforcing member has an L-shaped cross-section in the first direction (Z); The first reinforcing member has a cross-section in the first direction (Z) including a long side and a short side; The short side of the cross section is located at the end of the long side of the cross section. The long side of the cross section extends along the first direction (Z), and the short side of the cross section extends along the third direction (Y), wherein the third direction (Y) is a direction that intersects both the first direction (Z) and the second direction (X); the threshold beam is located at the position of the short side of the cross section. The cross-section of the support member in the first direction (Z) includes a first support arm, a second support arm, and a support member body; The first support arm and the second support arm are located at both ends of the support body, and a U-shaped structure is formed between the first support arm, the second support arm and the support body. The cavity formed by the U-shaped structure extends along the third direction (Y).

2. The vehicle body reinforcement structure according to claim 1, characterized in that, The threshold beam extends along the second direction (X) and is connected to the first overlapping surface.

3. The vehicle body reinforcement structure according to claim 1, characterized in that, The front pillar reinforcement assembly further includes a second reinforcement member, which extends along the first direction (Z) and is connected to the second overlapping surface.

4. The vehicle body reinforcement structure according to claim 1, characterized in that, The vehicle body reinforcement structure also includes a lower inner front pillar panel, which is connected to the third overlapping surface.

5. The vehicle body reinforcement structure according to claim 1, characterized in that, The support member has multiple cavity structures.

6. An automobile, comprising a vehicle body, characterized in that: The vehicle body is provided with a body reinforcement structure as described in any one of claims 1-5.

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