Bottle frame mounting structure and refrigerator
By designing the bottle frame installation structure in the refrigerator, the bottle frame is used to interfere with the location of the bottle frame and the position interference of the limit board to achieve vertical limit, solve the problem of unstable bottle frames in the existing refrigerator, and improve the stability and user experience of assembly.
Patent Information
- Application Number
- CN202421234503.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The bottle frames in existing refrigerators are unstable when assembled by hooks, which are prone to shaking up and down due to longitudinal forces, hooks falling off and bottle frame falling, reducing user experience.
Design a bottle frame installation structure, including the installation bracket and bottle frame. The bottle frame hook hook the installation department by crossing the two limited -limited panels, and uses the location interference between the linked upper upper and the limit board to achieve the vertical direction. Limit the stable assembly of the bottle frame.
Through vertical limits, the assembly stability of the bottle frame and the installation bracket is improved, preventing the bottle frame from falling or shaking under the inadvertent vertical external force, which improves the user's experience.
Smart Images

Figure CN222418162U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to refrigerators, and particularly relates to a bottle frame installation structure and a refrigerator. Background Art
[0002] Bottle racks, also known as door dividers, are usually detachably mounted on the refrigerator door for storing items.
[0003] At present, the bottle frame in the existing refrigerator is usually equipped with a hook on the back of the bottle frame, and the hook is directly hung on the pre-embedded mounting bracket on the refrigerator door body, and the hook structure of the hook is used to realize free adjustment of different assembly positions on the mounting bracket. However, since the assembly state of the bottle frame when assembled to the mounting bracket of the refrigerator door body by the hook is free and unstable, when the user inadvertently applies longitudinal force to the bottom of the bottle frame during use, the bottle frame is in danger of shaking up and down, and the hook falls off and the bottle frame falls off, which will reduce the user's use experience. Utility Model Content
[0004] In view of this, it is necessary to provide a bottle frame installation structure and a refrigerator for solving the above-mentioned technical problems.
[0005] A bottle frame mounting structure is applied to a refrigerator. The bottle frame mounting structure comprises:
[0006] A mounting bracket is formed with at least one bottle frame mounting portion, wherein the bottle frame mounting portion includes two limiting plates, and the two limiting plates are arranged at intervals along the width direction of the mounting bracket;
[0007] A bottle frame, comprising a bottle frame body and a bottle frame hook, wherein the bottle frame hook is fixedly connected to the bottle frame body, and the bottle frame hook can hook the bottle frame mounting portion after passing through the two limiting plates, and enable the bottle frame to be assembled to the mounting bracket;
[0008] Wherein, a boss is arranged on the bottle frame hook, and when the bottle frame hook hooks the bottle frame mounting portion, the boss forms position interference with the lower bottom surface of one of the limiting plates in the height direction of the bottle frame body.
[0009] It can be understood that, while the bottle frame hook hooks the bottle frame mounting part, the position interference formed between the boss on the bottle frame hook and the lower bottom surface of the upper limit plate on the mounting bracket can be used to achieve longitudinal limitation between the bottle frame main body and the bottle frame mounting part when the two are assembled, so that the assembly state between the bottle frame and the mounting bracket is more secure and stable, so that when the bottle frame main body is inadvertently subjected to longitudinal external force, it can prevent the bottle frame from falling off the mounting bracket and shaking up and down.
[0010] In one of the embodiments, a first guiding inclined surface is formed on the boss, and the first guiding inclined surface can be slidably matched with the inner side surface of the corresponding limiting plate to guide the boss to pass through the two limiting plates.
[0011] It is understandable that the first guiding slope on the boss is used to guide the boss when passing through the two limiting plates, so that it is convenient for the bottle frame hook to drive the boss to pass through the two limiting plates, and it is also convenient to assemble the bottle frame hook on the bottle frame mounting part.
[0012] In one of the embodiments, a second guide slope is also formed on the boss, and the second guide slope can slide with the side end surface of the corresponding limiting plate to guide the boss passing through the two limiting plates to move below the lower bottom surface of the corresponding limiting plate, and enable the bottle frame hook to hook the bottle frame mounting portion.
[0013] It can be understood that the second guiding inclined surface on the boss is used to guide the downward movement of the boss after passing through the two limiting plates, so that it is convenient to assemble the bottle frame hook on the bottle frame mounting part in place.
[0014] In one embodiment, a third guiding slope is further formed on the boss, and the third guiding slope can be slidably matched with the inner side surface of the corresponding limiting plate to guide the boss to enter the position between the two limiting plates;
[0015] Wherein, position interference can be formed between the third guiding inclined surface and the corresponding lower bottom surface of the limiting plate.
[0016] It can be understood that the third guiding bevel on the boss forms position interference with the lower bottom surface of the corresponding limit plate, and the third guiding bevel is used to guide the boss to enter the position between the two limit plates, so that when the longitudinal external force of the bottle frame body accumulates to a certain extent, the bottle frame hook can be detached from the bottle frame mounting part, thereby facilitating the subsequent removal of the bottle frame hook from the bottle frame mounting part.
[0017] In one embodiment, the number of the bosses is two, and the two bosses are arranged on both sides of the bottle frame hook along the thickness direction of the bottle frame hook;
[0018] Wherein, the two bosses correspond one to one with the two limit plates.
[0019] It can be understood that two bosses are used to jointly realize the longitudinal limit between the bottle frame body and the mounting bracket, which can further improve the longitudinal limit between the bottle frame body and the bottle frame mounting part when they are assembled, so that the assembly reliability and stability between the bottle frame and the mounting bracket are better.
[0020] In one embodiment, the number of the bottle frame hooks corresponding to each mounting bracket is configured to be two, and the two bottle frame hooks are arranged at intervals along the height direction of the bottle frame body;
[0021] Wherein, the two bottle frame hooks can hook the two bottle frame mounting parts at the same time.
[0022] It is understandable that using two bottle frame hooks to hook two bottle frame mounting portions at the same time can further improve the reliability and stability of the bottle frame when it is assembled on the mounting bracket.
[0023] In one embodiment, the bottle frame further comprises a mounting plate, and the mounting plate is integrally connected with the two bottle frame hooks;
[0024] Wherein, the mounting plate is abutted against the bottle frame body and is detachably connected to the bottle frame body.
[0025] It is understandable that the two bottle frame hooks are integrated into the mounting plate, and the mounting plate is used to achieve a detachable connection on the bottle frame body, which can facilitate the assembly connection of the two bottle frame hooks on the bottle frame body.
[0026] In one embodiment, a buckle is formed on the mounting plate, and a mounting matching plate is formed on the bottle frame body, and the buckle can be engaged with the mounting matching plate;
[0027] Wherein, the bottle frame further comprises a connecting piece, and the connecting piece can pass through the mounting matching plate and be threadedly connected with the mounting plate.
[0028] It can be understood that, through the above-mentioned structural arrangement, it is easy to assemble the mounting plate to the bottle frame body.
[0029] In one embodiment, the limiting plate is configured as a flange formed on the bottle frame mounting portion;
[0030] Wherein, the limiting plate can be elastically deformed under the pushing of the corresponding boss.
[0031] It can be understood that, through the above-mentioned structural setting, it is easy to process and form the limiting plate on the mounting bracket, and meet the use requirements of the bottle frame hook passing through the two limiting plates.
[0032] The present application also seeks protection for a refrigerator comprising the bottle frame mounting structure described above.
[0033] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0034] The bottle frame mounting structure and refrigerator protected by the present application can realize longitudinal limitation between the bottle frame main body and the bottle frame mounting part when the two are assembled by utilizing the position interference formed between the boss on the bottle frame hook and the lower bottom surface of the upper limit plate of the mounting bracket while hooking the bottle frame mounting part, so that the assembly state between the bottle frame and the mounting bracket is more secure and stable, so that when the bottle frame main body is inadvertently subjected to longitudinal external force, it can prevent the bottle frame from falling off the mounting bracket and shaking up and down. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0036] Figure 1 This is a structural schematic diagram of a bottle frame installation structure provided in one embodiment of the present application.
[0037] Figure 2 for Figure 1 Enlarged view of the middle P part.
[0038] Figure 3 This is an exploded view of a bottle frame installation structure provided in one embodiment of the present application.
[0039] Figure 4 This is a schematic diagram of the structure when two bottle frame hooks and the mounting plate are connected as one in this application.
[0040] Figure 5 This is a structural schematic diagram from another perspective when two bottle frame hooks and a mounting plate are connected as one in this application.
[0041] Figure numerals: 100, bottle frame mounting structure; 10, mounting bracket; 110, mounting portion; 11, limiting plate; 111, lower bottom surface; 112, inner side surface; 113, side end surface; 12, through hole; 20, bottle frame; 21, bottle frame main body; 211, mounting matching plate; 22, bottle frame hook; 221, boss; 2211, first guide slope; 2212, second guide slope; 2213, third guide slope; 23, mounting plate; 231, buckle. DETAILED DESCRIPTION
[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0043] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.
[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0045] like Figures 1 to 3 As shown, the bottle frame mounting structure 100 provided in an embodiment of the present application includes a mounting bracket 10 and a bottle frame 20, the mounting bracket 10 is formed with at least one bottle frame mounting portion 110, the bottle frame mounting portion 110 includes two limiting plates 11, and the two limiting plates 11 are arranged at intervals along the width direction of the mounting bracket 10; the bottle frame 20 includes a bottle frame body 21 and a bottle frame hook 22, the bottle frame hook 22 is fixedly connected to the bottle frame body 21, and the bottle frame hook 22 can hook the bottle frame mounting portion 110 after passing through the two limiting plates 11, and the bottle frame 20 is assembled to the mounting bracket 10; wherein, a boss 221 is provided on the bottle frame hook 22, and when the bottle frame hook 22 hooks the bottle frame mounting portion 110, the boss 221 forms a position interference with the lower bottom surface 111 of one of the limiting plates 11 in the height direction of the bottle frame hook 22. Here, the position interference formed between the boss 221 on the bottle frame hook 22 and the lower bottom surface 111 of the limiting plate 11 specifically refers to the presence of a certain overlap margin between the boss 221 on the bottle frame hook 22 and the lower bottom surface 111 of the limiting plate 11, so that the bottle frame hook 22 can play a longitudinal limiting role when being assembled on the bottle frame mounting portion 110.
[0046] It can be understood that when the bottle frame 20 is assembled on the mounting bracket 10, the position interference formed between the boss 221 and the lower bottom surface 111 of the upper limit plate 11 on the mounting bracket 10 can be used to achieve longitudinal limitation between the bottle frame main body 21 and the bottle frame mounting part 110 when they are assembled, so that the assembly state between the bottle frame 20 and the mounting bracket 10 is more secure and stable. In this way, when the bottle frame main body 21 is inadvertently subjected to longitudinal external force, it can prevent the bottle frame 20 from falling off the mounting bracket 10 and shaking up and down.
[0047] like Figure 2 As shown, the limiting plate 11 is configured as a flange formed on the mounting bracket 10. That is to say, the two limiting plates 11 of the mounting bracket 10 on the bottle frame mounting portion 110 can be formed by folding, so that it is convenient to process and form the limiting plate 11 on the mounting bracket 10. Here, a through hole 12 is provided on the bottle frame mounting portion 110, and the through hole 12 can be passed through by the bottle frame hook 22, so that the bottle frame hook 22 can hook the bottle frame mounting portion 110 after passing through the through hole 12. It should be noted that the mounting bracket 10 is configured as a reinforcing iron, and the mounting bracket 10 is pre-embedded and assembled into the refrigerator door body (not shown). In order to improve the stability of the bottle frame 20 when assembled on the refrigerator door body, two mounting brackets 10 can be pre-installed in the refrigerator door body, and the two mounting brackets 10 are used to jointly support the bottle frame 20. Of course, in other embodiments, the mounting bracket 10 used to assemble and support the bottle frame 20 can also be configured as one, three, or even more.
[0048] It should be noted that the limiting plate 11 can be elastically deformed under the push of the corresponding boss 221 , so that the bottle frame hook 22 can pass through the positions of the two limiting plates 11 , and then the bottle frame hook 22 can hook the mounting bracket 10 .
[0049] like Figure 2 , Figure 4 and Figure 5As shown, the number of bottle frame hooks 22 corresponding to each mounting bracket 10 is configured as two, and the two bottle frame hooks 22 are arranged at intervals along the height direction of the bottle frame body 21; wherein, the two bottle frame hooks 22 can hook two bottle frame mounting parts 110 at the same time. In other words, the bottle frame body 21 can use two bottle frame hooks 22 to realize the assembly connection on a mounting bracket 10. Of course, in other embodiments, the number of bottle frame hooks 22 on the bottle frame body 21 for assembly connection with the mounting bracket 10 can also be configured as one, three, or even more. It should be noted that the number of bottle frame mounting parts 110 on the mounting bracket 10 is greater than the number of bottle frame hooks 22 in the bottle frame 20, and the plurality of bottle frame mounting parts 110 can be arranged in sequence at equal intervals along the height direction of the mounting bracket 10, so that the bottle frame 20 can select two of the bottle frame mounting parts 110 for assembly according to the use requirements, and the installation position of the bottle frame 20 on the mounting bracket 10 can be adjusted.
[0050] like Figure 2 , Figure 4 and Figure 5 As shown, the bottle frame 20 further includes a mounting plate 23, and the mounting plate 23 is connected to the two bottle frame hooks 22 as a whole; wherein the mounting plate 23 is attached to the bottle frame body 21 and is detachably connected to the bottle frame body 21. In this way, the assembly connection of the two bottle frame hooks 22 on the bottle frame body 21 is specifically realized, and the production and preparation of the bottle frame 20 is convenient. Of course, in other embodiments, the mounting plate 23 can also be connected to the bottle frame body 21 as a whole, or the two bottle frame hooks 22 can be directly connected to the bottle frame body 21 by ultrasonic welding, which will not be elaborated here.
[0051] like Figure 2 , Figure 4 and Figure 5 As shown, a buckle 231 is formed on the mounting plate 23, and a mounting matching plate 211 is formed on the bottle frame body 21. The buckle 231 can be engaged with the mounting matching plate 211, and the assembly connection between the mounting plate 23 and the mounting matching plate 211 is realized. Here, the number of the buckles 231 is configured as two, and the two buckles 231 are arranged at the diagonal positions of the mounting plate 23. It should be noted that the mounting matching plate 211 is protruded outwardly in the direction of the bottle frame 20 relative to the bottle frame body 21, and the shape of the mounting matching plate 211 matches the shape of the mounting plate 23, so that the bottle frame body 21 can be plugged and matched with the mounting plate 23 by the concave cavity formed by the protrusion of the mounting matching plate 211, so that the assembly positioning of the mounting plate 23 on the bottle frame body 21 can be realized, so that the mounting plate 23 can be easily assembled and connected with the mounting matching plate 211.
[0052] The bottle frame 20 further includes a connecting piece (not shown), which can pass through the mounting plate 211 and be threadedly connected to the mounting plate 23, and is used to lock the mounting plate 23 on the mounting plate 211, so as to improve the stability of the assembly connection between the mounting plate 23 and the mounting plate 211. Here, the number of the connecting pieces is configured as two, and the two connecting pieces are arranged on the left and right sides of the mounting plate 23, wherein the connecting piece can be specifically configured as a bolt or a screw.
[0053] like Figure 2 , Figure 4 and Figure 5 As shown, the number of bosses 221 is two, and the two bosses 221 correspond to the two limiting plates 11 one by one; the two bosses 221 are arranged on both sides of the bottle frame hook 22 along the thickness direction of the bottle frame hook 22. That is to say, when the bottle frame hook 22 hooks the bottle frame mounting portion 110, the two bosses 221 can be used to jointly realize the longitudinal limiting between the bottle frame body 21 and the bottle frame mounting portion 110 when the two are assembled, so that the reliability and stability of the bottle frame hook 22 when hooking the bottle frame mounting portion 110 can be further improved.
[0054] like Figure 5 As shown, a first guiding bevel 2211 is formed on the boss 221, and the first guiding bevel 2211 can slideably cooperate with the inner side surface 112 of the corresponding limiting plate 11, so as to guide the boss 221 to pass through the two limiting plates 11, and realize the guidance of the two bosses 221 when the bottle frame hook 22 drives the two limiting plates 11, so that it is convenient for the bottle frame hook 22 to drive the boss 221 to pass through the two limiting plates 11, thereby facilitating the assembly of the bottle frame hook 22 on the bottle frame mounting portion 110.
[0055] like Figure 4 , Figure 5 As shown, the boss 221 is also formed with a second guiding inclined surface 2212, which can be slidably matched with the side end surface 113 of the corresponding limiting plate 11, and is used to guide the boss 221 passing through the two limiting plates 11 to move below the lower bottom surface 111 of the corresponding limiting plate 11, and make the bottle frame hook 22 hook the bottle frame mounting portion 110. In this way, the second guiding inclined surface 2212 on the boss 221 can be used to guide the downward movement of the boss 221 after passing through the two limiting plates 11, so that the bottle frame hook 22 can be easily assembled in place when being assembled on the bottle frame mounting portion 110.
[0056] like Figure 4 , Figure 5As shown, a third guiding bevel 2213 is also formed on the boss 221, and the third guiding bevel 2213 can slide with the inner side surface 112 of the corresponding limiting plate 11 to guide the boss 221 to enter the position between the two limiting plates 11; wherein, a position interference can be formed between the third guiding bevel 2213 and the lower bottom surface 111 of the corresponding limiting plate 11, so that when the longitudinal external force of the bottle frame main body 21 accumulates to a certain extent, the bottle frame hook 22 can be detached from the bottle frame mounting part 110, thereby facilitating the subsequent removal of the bottle frame hook 22 from the bottle frame mounting part 110.
[0057] As can be seen from the above, when the bottle frame 20 of the present application is assembled on the mounting bracket 10, the boss 221 on the bottle frame hook 22 can be aligned with the gap between the two limit plates 11 on the mounting bracket 10 and inserted. In this process, the first guide inclined surface 2211 on the boss 221 and the inner side surface 112 on the limit plate 11 can be used as a guide to guide the boss 221 on the bottle frame hook 22 to pass through the two limit plates 11; then the bottle frame hook 22 is pushed down, and in this process , the second guide inclined surface 2212 on the boss 221 and the upper end surface 113 of the limiting plate 11 can be used as a guide to guide the bottle frame hook 22 to be assembled on the mounting bracket 10, and the bottle frame hook 22 is hooked on the bottle frame mounting portion 110. At this time, the third guide inclined surface 2213 of the boss 221 on the bottle frame hook 22 abuts against the upper and lower bottom surfaces 111 of the limiting plate 11, and the longitudinal position of the bottle frame hook 22 when assembled on the bottle frame mounting portion 110 is realized. When the bottle frame hook 22 needs to be detached from the corresponding bottle frame mounting portion 110, the bottle frame hook 22 can be driven by the direction, which will not be elaborated here.
[0058] In addition, the present application also provides a refrigerator, including the bottle frame mounting structure 100 described above.
[0059] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0060] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.
Claims
1. A bottle frame installation structure, used in a refrigerator, characterized in that: The bottle frame mounting structure (100) comprises: A mounting bracket (10) is formed with at least one bottle frame mounting portion (110), wherein the bottle frame mounting portion (110) comprises two limiting plates (11), and the two limiting plates (11) are arranged at intervals along the width direction of the mounting bracket (10); A bottle frame (20), comprising a bottle frame body (21) and a bottle frame hook (22), wherein the bottle frame hook (22) is fixedly connected to the bottle frame body (21), and the bottle frame hook (22) can hook the bottle frame mounting portion (110) after passing through the two limiting plates (11), so that the bottle frame (20) is assembled on the mounting bracket (10); The bottle frame hook (22) is provided with a boss (221), and when the bottle frame hook (22) is hooked on the bottle frame mounting portion (110), the boss (221) forms position interference with the lower bottom surface (111) of one of the limiting plates (11) in the height direction of the bottle frame body (21).
2. The bottle frame installation structure according to claim 1, characterized in that: A first guiding inclined surface (2211) is formed on the boss (221), and the first guiding inclined surface (2211) can be slidably matched with the inner side surface (112) of the corresponding limiting plate (11) to guide the boss (221) to pass through the two limiting plates (11).
3. The bottle frame installation structure according to claim 2, characterized in that: A second guiding inclined surface (2212) is also formed on the boss (221), and the second guiding inclined surface (2212) can be slidably matched with the side end surface (113) of the corresponding limiting plate (11), and is used to guide the boss (221) passing through the two limiting plates (11) to move below the lower bottom surface (111) of the corresponding limiting plate (11), and enable the bottle frame hook (22) to hook the bottle frame mounting portion (110).
4. The bottle frame installation structure according to claim 1, characterized in that: A third guiding inclined surface (2213) is also formed on the boss (221), and the third guiding inclined surface (2213) can be slidably matched with the inner side surface (112) of the corresponding limiting plate (11) to guide the boss (221) to enter the position between the two limiting plates (11); Wherein, position interference can be formed between the third guiding inclined surface (2213) and the corresponding lower bottom surface (111) of the limiting plate (11).
5. The bottle frame installation structure according to claim 1, characterized in that: The number of the bosses (221) is configured to be two, and the two bosses (221) are arranged on both sides of the bottle frame hook (22) along the thickness direction of the bottle frame hook (22); The two bosses (221) correspond to the two limit plates (11) in a one-to-one manner.
6. The bottle frame installation structure according to claim 1, characterized in that: The number of the bottle frame hooks (22) corresponding to each mounting bracket (10) is configured to be two, and the two bottle frame hooks (22) are arranged at intervals along the height direction of the bottle frame body (21); The two bottle frame hooks (22) are capable of hooking onto the two bottle frame mounting portions (110) at the same time.
7. The bottle frame installation structure according to claim 6, characterized in that: The bottle frame (20) further comprises a mounting plate (23), wherein the mounting plate (23) is integrally connected with the two bottle frame hooks (22); Wherein, the mounting plate (23) is abutted against the bottle frame body (21) and is detachably connected to the bottle frame body (21).
8. The bottle frame installation structure according to claim 7, characterized in that: A buckle (231) is formed on the mounting plate (23), and a mounting matching plate (211) is formed on the bottle frame body (21), and the buckle (231) can be snap-fitted with the mounting matching plate (211); Wherein, the bottle frame (20) further comprises a connecting piece, and the connecting piece can pass through the mounting matching plate (211) and be threadedly connected to the mounting plate (23).
9. The bottle frame installation structure according to claim 1, characterized in that: The limiting plate (11) is configured as a flange formed on the bottle frame mounting portion (110); Wherein, the limiting plate (11) can undergo elastic deformation under the pushing of the corresponding boss (221).
10. A refrigerator, characterized in that: It comprises the bottle frame mounting structure (100) as claimed in any one of claims 1 to 9.