Footing adjusting system and household appliance

Abstract

The utility model discloses a footing adjusting system and a household electrical appliance, the footing adjusting system comprises a first footing, a second footing and a third footing, the first footing and the second footing are arranged at an interval along a first direction, the third footing is arranged at an interval along a second direction perpendicular to the first direction, and the third footing is arranged at an interval along the first direction. The third bottom foot is located between the first bottom foot and the second bottom foot, and the first bottom foot, the second bottom foot and the third bottom foot all comprise lifting mechanisms; the first bottom foot and the second bottom foot are connected through the first transmission mechanism, and the first transmission mechanism comprises a transmission belt and a twisting assembly connected with the transmission belt; the second transmission mechanism comprises a transmission rod, one end of the transmission rod is connected with the third bottom foot, and the other end of the transmission rod is selectively connected with the twisting assembly.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a foot adjustment system and a household appliance. Background Technology

[0002] For existing household appliances such as washing machines, refrigerators, and dishwashers, especially dishwashers, whether freestanding or built-in, height adjustment is a necessity for customers. To accommodate cabinets of varying heights, current dishwashers have threaded feet at each corner. However, lacking an external transmission mechanism, this makes integration into the foot adjustment system inconvenient. During installation, installers must adjust each foot individually, resulting in inefficient overall installation and significant difficulty in achieving the desired effect within limited space. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a foot adjustment system and a household appliance.

[0004] Firstly, this utility model proposes a foot adjustment system, comprising:

[0005] The first base, the second base, and the third base are provided. The first base and the second base are spaced apart along a first direction. The third base is spaced apart along a second direction perpendicular to the first direction. Along the first direction, the third base is located between the first base and the second base. The first base, the second base, and the third base all include a lifting mechanism.

[0006] A first transmission mechanism is provided, wherein the first base foot and the second base foot are connected by the first transmission mechanism, and the first transmission mechanism includes a transmission belt and a rotating assembly connected to the transmission belt;

[0007] The second transmission mechanism includes a transmission rod, one end of which is connected to the third base, and the other end of which is optionally connected to the turning assembly.

[0008] Preferably, the first foot, the second foot, and the third foot all include a support foot, and the support foot includes a threaded portion and a support portion disposed at the lower end of the threaded portion and fixedly connected to the threaded portion;

[0009] The lifting mechanism includes a first bevel gear and a second bevel gear that mesh with each other. The first bevel gear is sleeved on the outside of the threaded portion and threadedly connected to the threaded portion. The second bevel gears of the first base and the second base are connected by the transmission belt. The second bevel gear of the third base is connected to the transmission rod. The lifting mechanism also includes a transmission cylinder, which is sleeved on the outside of the threaded portion and cooperates with the first bevel gear. The first bevel gear rotates to drive the transmission cylinder to move vertically relative to the threaded portion. The transmission cylinder is also used to connect to the base plate of the household appliance.

[0010] Preferably, the second bevel gear includes a first gear portion and a second gear portion coaxially arranged, the first gear portion meshing with the first bevel gear, and the second gear portion meshing with the transmission belt; a mounting post is provided on the side of the second gear portion away from the first gear portion, and a first insertion hole is provided at the end of the mounting post away from the second gear portion, and the transmission rod is inserted into the first insertion hole.

[0011] Preferably, the transmission cylinder has a first bevel gear mounting groove inside, and the first bevel gear is rotatably mounted inside the first bevel gear mounting groove. The first bevel gear includes a gear part and a platform part located above the gear part, and the platform part can abut against the inner side of the upper wall of the transmission cylinder.

[0012] Preferably, the transmission cylinder also cooperates with the second bevel gear, and the transmission cylinder has a second bevel gear mounting groove inside, the first gear part of the second bevel gear is rotatably mounted inside the second bevel gear mounting groove, and the mounting post passes through the transmission cylinder and extends to the outside of the transmission cylinder;

[0013] The side wall of the transmission cylinder is provided with a connecting groove for connecting an external transmission belt at the position corresponding to the second gear.

[0014] Preferably, the turning assembly includes a base plate, a side plate, and a turning part. The side plate is connected to the base plate and is arranged perpendicular to the base plate. The turning part includes a turning gear, which is rotatably engaged with the side plate and the axis of the turning gear is perpendicular to the side plate. Both sides of the turning gear in the vertical direction are engaged with the transmission belt.

[0015] The side plate has a gear mounting hole, and the transmission rod is connected to the turning gear through the gear mounting hole.

[0016] Preferably, a gear mounting groove is formed on the side of the side plate away from the third foot, the gear mounting hole is disposed on the bottom wall of the gear mounting groove, the turning gear is placed in the gear mounting groove, and belt limiting plates are connected to the two side walls of the gear mounting groove in the vertical direction. The belt limiting plates are disposed parallel to the bottom wall, and the transmission belt is placed between the belt limiting plates and the bottom wall.

[0017] Preferably, the rotating gear has a rotating ring on the side away from the bottom wall, and the rotating ring has a handle on the side away from the rotating gear. Arc-shaped grooves are opened on the two adjacent sides of the two belt limiting plates, and the rotating ring is rotatably installed between the two arc-shaped grooves.

[0018] The rotating gear has a second insertion hole on the side near the third base, and the transmission rod is inserted into the second insertion hole.

[0019] Preferably, the turning assembly further includes a connecting plate, which is fixed to the side of the base plate away from the side plate, and the two ends of the connecting plate are respectively connected to the transmission cylinders of the first base foot and the second base foot.

[0020] Secondly, this utility model proposes a household appliance that includes any one of the above-mentioned foot adjustment systems.

[0021] The beneficial effects of this utility model are:

[0022] The foot adjustment system provided by this utility model includes three feet. The first and second feet are spaced apart along a first direction (the length direction of the appliance), and the second and third feet are spaced apart along a second direction (the width direction of the appliance). When applied to a appliance, two feet are positioned at the front and one foot at the rear, achieving height adjustment and leveling through a two-point-one-line or three-point-one-plane approach. The first and second feet are raised and lowered via a first transmission mechanism, and the third foot via a second transmission mechanism. Since the transmission rod in the second transmission mechanism is selectively connected to the rotating component, when the transmission rod is connected, the user rotates the rotating component, causing the first and second feet to rise and fall simultaneously, while the third foot is raised and lowered synchronously via the transmission rod, achieving synchronous adjustment of all three feet. When the transmission rod is not connected to the rotating component, the user can raise and lower the first and second feet by rotating the rotating component, allowing for individual adjustment of the first and second feet, improving the efficiency and flexibility of foot adjustment.

[0023] In addition, the screw-on assembly can be installed at the front of the household appliance, allowing adjustment of all three feet. The adjustment position faces the installer, and adjustments can be made using standard tools to meet the needs of different scenarios. The installation height is adjustable to accommodate different types of household appliances, making it convenient for users. Attached Figure Description

[0024] In the attached diagram:

[0025] Figure 1 This is a schematic diagram of the foot adjustment system proposed in this utility model;

[0026] Figure 2 This is an exploded view of the base proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the internal assembly structure of the base proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the second bevel gear proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the transmission cylinder proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the screwing assembly proposed in this utility model;

[0031] Figure 7 This is an exploded view of the screwing assembly proposed in this utility model;

[0032] Figure 8 This is a schematic diagram of the transmission rod portion proposed in this utility model;

[0033] Figure 9 This is a schematic diagram of the transmission belt proposed in this utility model.

[0034] In the diagram: 1-First base, 2-Transmission belt, 3-Turning assembly, 4-Second base, 5-Transmission rod, 6-Third base;

[0035] 11-Support part, 12-Threaded part, 13-First bevel gear, 14-Second bevel gear, 15-Transmission cylinder;

[0036] 141-Mounting post, 142-First gear section, 143-Second gear section, 144-First insertion hole;

[0037] 151-Cylinder body, 152-First bevel gear mounting groove, 153-Limiting ring, 154-Second bevel gear mounting groove, 155-Front panel, 156-Mounting post mounting groove, 157-Connecting groove;

[0038] 21-Belt body, 22-Gear groove;

[0039] 31-Base plate, 32-Side plate, 33-Twisting part;

[0040] 311-Base plate body, 312-Slide groove;

[0041] 321-Side panel body, 322-Belt limiting plate;

[0042] 331 - Twisting gear, 332 - Handle, 333 - Rotating ring. Detailed Implementation

[0043] Reference Figure 1 This utility model proposes a foot adjustment system, comprising:

[0044] The first base 1, the second base 4, and the third base 6 are arranged at intervals along the first direction, and the third base 6 is arranged at intervals along the second direction perpendicular to the first direction. Along the first direction, the third base 6 is located between the first base 1 and the second base 4. The first base 1, the second base 4, and the third base 6 all include a lifting mechanism.

[0045] The first transmission mechanism is connected to the first base 1 and the second base 4. The first transmission mechanism includes a transmission belt 2 and a rotating assembly 3 connected to the transmission belt 2.

[0046] The second transmission mechanism includes a transmission rod 5, one end of which is connected to the third base 6, and the other end of which is optionally connected to the turning assembly 3.

[0047] Obviously, based on the above, this embodiment achieves the adjustment of the installation height of the front and rear ends of the foot adjustment system by using the first foot 1 and the second foot 4 set at the front end, the third foot 6 set at the rear end, and applying force by the screwing component 3.

[0048] In some embodiments, the other end of the transmission rod 5 is not connected to the rotating assembly 3. Based on the above, in this embodiment, the installation height of the first base 1 and the second base 4 is adjusted by applying force through the rotating assembly 3. When the user adjusts the rotating assembly 3, since the transmission rod 5 is not connected to the rotating assembly 3, the third base 6 does not move up or down, thus realizing the independent adjustment of the height of the first base 1 and the second base 4.

[0049] In other embodiments, the other end of the transmission rod 5 is connected to the rotating assembly 3. When the user rotates the rotating assembly 3, the rotating assembly 3 drives the first foot 1 and the second foot 4 to rise and fall, and at the same time drives the third foot 6 to rise and fall synchronously through the transmission rod 5, so as to realize the synchronous adjustment of the three feet.

[0050] In this embodiment, refer to Figure 2 and Figure 3 The first base foot 1, the second base foot 4 and the third base foot 6 all include support feet. The support feet include threaded portions 12 and support portions 11 disposed at the lower end of the threaded portions 12 and fixedly connected to the threaded portions 12.

[0051] The lifting mechanism includes a first bevel gear 13 and a second bevel gear 14 that mesh with each other. The first bevel gear 13 is sleeved on the outside of the threaded portion 12 and threadedly connected to the threaded portion 12. The second bevel gear 14 of the first base 1 and the second base 4 are connected by a transmission belt. The second bevel gear 14 of the third base 6 is connected to the transmission rod 5. The lifting mechanism also includes a transmission cylinder 15, which is sleeved on the outside of the threaded portion 12 and cooperates with the first bevel gear 13. The first bevel gear 13 rotates to drive the transmission cylinder 15 to move vertically relative to the threaded portion 12. The transmission cylinder 15 is also used to connect to the base plate of the household appliance.

[0052] Obviously, based on the above, this embodiment can realize that the rotation of the second bevel gear 14 drives the transmission cylinder 15 to move along the threaded part 12, thereby achieving the purpose of adjusting the height of the foot.

[0053] In this embodiment, refer to Figure 3 and Figure 4 The second bevel gear 14 includes a first gear part 142 and a second gear part 143 arranged coaxially. The first gear part 142 meshes with the first bevel gear 13, and the second gear part 143 meshes with the transmission belt 2. A mounting post 141 is provided on the side of the second gear part 143 away from the first gear part 142. A first insertion hole 144 is provided at the end of the mounting post 141 away from the second gear part 143. The transmission rod 5 is inserted into the first insertion hole 144.

[0054] Obviously, based on the above, in this embodiment, the second bevel gear 14 can drive the second gear part 143 to rotate via the transmission belt 2 or drive the second bevel gear 14 to rotate via the transmission rod 5 inserted into the first insertion hole 144.

[0055] In this embodiment, refer to Figure 3 and Figure 5 The transmission cylinder 15 has a first bevel gear mounting groove 152 inside. The first bevel gear 13 is rotatably mounted inside the first bevel gear mounting groove 152. The first bevel gear 13 includes a gear part and a platform part located above the gear part. The platform part can abut against the inner side of the upper wall of the transmission cylinder 15.

[0056] Obviously, based on the above, in this embodiment, the first bevel gear 13 is installed inside the first bevel gear mounting groove 152, and the rotation of the first bevel gear 13 drives the transmission cylinder 15 to move along the threaded part 12.

[0057] In this embodiment, refer to Figure 3 and Figure 5 The transmission cylinder 15 also cooperates with the second bevel gear 14. The transmission cylinder 15 has a second bevel gear mounting groove 154 inside. The first gear part 142 of the second bevel gear 14 is rotatably mounted inside the second bevel gear mounting groove 154. The mounting post 141 passes through the transmission cylinder 15 and extends to the outside of the transmission cylinder 15.

[0058] A connecting groove 157 for connecting an external transmission belt 2 is provided on the side wall of the transmission cylinder 15 at the position corresponding to the second gear part 143.

[0059] Obviously, based on the above, in this embodiment, the second bevel gear 14 is installed inside the second bevel gear mounting groove 154, and the rotation of the second bevel gear 14 drives the first bevel gear 13 to rotate.

[0060] In this embodiment, refer to Figure 1 and Figure 6 The twisting assembly 3 includes a base plate 31, a side plate 32, and a twisting part 33. The side plate 32 is connected to the base plate 31 and is arranged perpendicular to the base plate 31. The twisting part 33 includes a twisting gear 331. The twisting gear 331 is rotatably engaged with the side plate 32 and the axis of the twisting gear 331 is perpendicular to the side plate 32. Both sides of the twisting gear 331 in the vertical direction are engaged with the transmission belt 2.

[0061] A gear mounting hole is provided on the side plate 32, and the transmission rod 5 is connected to the turning gear 331 through the gear mounting hole.

[0062] Obviously, based on the above, in this embodiment, by twisting the twisting part 33, the transmission belt 2 drives the first foot 1 and the second foot 4 to adjust the installation height synchronously.

[0063] In this embodiment, refer to Figure 1 , Figure 6 and Figure 7 A gear mounting groove is formed on the side of the side plate 32 away from the third foot 6. A gear mounting hole is set on the bottom wall of the gear mounting groove. The gear 331 is rotated and placed in the gear mounting groove. A belt limiting plate 322 is connected to the two side walls of the gear mounting groove in the vertical direction. The belt limiting plate 322 is set parallel to the bottom wall. The transmission belt 2 is placed between the belt limiting plate 322 and the bottom wall.

[0064] Obviously, based on the above, in this embodiment, the belt is limited by the belt limiting plate 322 to prevent the belt from disengaging from the second gear part 143 during rotation.

[0065] In this embodiment, refer to Figure 6 and Figure 7A rotating ring 333 is provided on the side of the rotating gear 331 away from the bottom wall, and a handle 332 is provided on the side of the rotating ring 333 away from the rotating gear 331. Arc-shaped grooves are provided on the two sides of the two belt limiting plates 322 that are close to each other, and the rotating ring 333 is rotatably installed between the two arc-shaped grooves.

[0066] A second insertion hole is provided on the side of the rotating gear 331 near the third base 6. The transmission rod 5 is inserted into the second insertion hole. When the transmission rod 5 is inserted into the second insertion hole, the rotating component 3 is connected to the transmission rod 5. When the transmission rod 5 is pulled out of the second insertion hole, that is, when the transmission rod 5 is not inserted into the second insertion hole, the rotating component 3 is not connected to the transmission rod 5. The user can switch the connection state between the transmission rod 5 and the rotating component 3 through a simple pull-out action.

[0067] Obviously, based on the above, in this embodiment, the transmission rod 5 is inserted into the second insertion hole, and the installation height is adjusted by turning the turning part 33 to drive the third base 6 connected to the transmission rod 5.

[0068] In this embodiment, refer to Figure 1 The rotating assembly 3 also includes a connecting plate, which is fixed to the side of the base plate 31 away from the side plate 32. The two ends of the connecting plate are respectively connected to the transmission cylinder 15 of the first base foot 1 and the second base foot 4.

[0069] Obviously, based on the above, when the rotating assembly 3 rotates in this embodiment, since the transmission cylinder 15 of the first base 1 and the second base 4 and the rotating assembly 3 are both connected by a connecting plate, the installation height of the rotating assembly 3 is adjusted along with the adjustment of the installation height of the first base 1 and the second base 4.

[0070] In some embodiments, the first foot 1 and the second foot 4 are spaced apart along a first direction, and the third foot 6 is spaced apart along a second direction perpendicular to the first direction. Along the first direction, the third foot 6 is located between the first foot 1 and the second foot 4, meaning the line connecting the first foot 1, the second foot 4, and the third foot 6 can form a triangle. Further, the line connecting the first foot 1, the second foot 4, and the third foot 6 can also form an isosceles triangle. The first direction can be the length direction of the household appliance when the foot adjustment system is installed, and correspondingly, the second direction can be the width direction of the household appliance; or, the first direction can be the width direction of the household appliance, and the second direction can be the length direction of the household appliance.

[0071] In this embodiment, refer to Figure 7 The base plate 31 includes a base plate body 311, and the upper end of the base plate body 311 is provided with a sliding groove 312 arranged in a direction perpendicular to the base of the triangle. The side plate 32 is slidably connected to the sliding groove 312.

[0072] Obviously, based on the above, in this embodiment, when it is necessary to adjust the installation height of the third foot 6, the side plate 32 is pushed towards the third foot 6, so that one end of the transmission rod 5 is connected to the insertion hole 144 of the third foot 6. When the rotating part 33 is rotated, the installation heights of the first foot 1, the second foot 4 and the third foot 6 are adjusted synchronously. When it is not necessary to adjust the installation height of the third foot 6, the side plate 32 is pushed away from the third foot 6, so that one end of the transmission rod 5 is separated from the insertion hole 144 of the third foot 6. When the rotating part 33 is rotated, the installation heights of the first foot 1 and the second foot 4 are adjusted synchronously.

[0073] To more clearly illustrate the implementation plan and its effects, we will use the attached diagram as an example:

[0074] like Figures 1-9 As shown:

[0075] The installation height of the first base foot 1, the second base foot 4, and the third base foot 6 can be adjusted synchronously.

[0076] Push the side plate 32 toward the third foot 6 so that one end of the transmission rod 5 is connected to the insertion hole 144 of the third foot 6. Rotate the twisting part 33, and the rotating assembly 14 of the first foot 1, the second foot 4 and the third foot 6 will rotate simultaneously, driving the transmission cylinder 15 of the first foot 1, the second foot 4 and the third foot 6 to move.

[0077] The installation height of the first base 1 and the second base 4 is adjusted synchronously, while the installation height of the third base 6 is not adjusted.

[0078] Push the side plate 32 away from the third foot 6 so that one end of the transmission rod 5 is separated from the insertion hole 144 of the third foot 6. Rotate the twisting part 33, and the second bevel gear 14 of the first foot 1 and the second foot 4 will rotate simultaneously, driving the transmission cylinder 15 of the first foot 1 and the second foot 4 to move, while the transmission cylinder 15 of the third foot 6 remains stationary.

[0079] Secondly, this utility model proposes a household appliance that includes any one of the above-mentioned foot adjustment systems.

[0080] Obviously, based on the above, in this embodiment, the installation height of the base structure is adjustable when applied to household appliances, making it convenient for users.

Claims

1. A foot adjustment system, characterized in that, include: The first base (1), the second base (4), and the third base (6) are provided. The first base (1) and the second base (4) are spaced apart along a first direction. The third base (6) is spaced apart along a second direction perpendicular to the first direction. Along the first direction, the third base (6) is located between the first base (1) and the second base (4). The first base (1), the second base (4), and the third base (6) all include a lifting mechanism. A first transmission mechanism is provided, wherein the first base (1) and the second base (4) are connected through the first transmission mechanism, and the first transmission mechanism includes a transmission belt (2) and a turning assembly (3) connected to the transmission belt (2); The second transmission mechanism includes a transmission rod (5), one end of which is connected to the third base (6), and the other end of which is optionally connected to the rotating assembly (3).

2. The foot adjustment system according to claim 1, characterized in that: The first foot (1), the second foot (4) and the third foot (6) all include a support foot, and the support foot includes a threaded part (12) and a support part (11) disposed at the lower end of the threaded part (12) and fixedly connected to the threaded part (12); The lifting mechanism includes a first bevel gear (13) and a second bevel gear (14) meshing with each other. The first bevel gear (13) is sleeved on the outside of the threaded part (12) and threadedly connected to the threaded part (12). The second bevel gears (14) of the first foot (1) and the second foot (4) are connected by the transmission belt. The second bevel gear (14) of the third foot (6) is connected to the transmission rod (5). The lifting mechanism also includes a transmission cylinder (15). The transmission cylinder (15) is sleeved on the outside of the threaded part (12) and cooperates with the first bevel gear (13). The first bevel gear (13) rotates to drive the transmission cylinder (15) to move vertically relative to the threaded part (12). The transmission cylinder (15) is also used to connect to the base plate of the household appliance.

3. The foot adjustment system according to claim 2, characterized in that: The second bevel gear (14) includes a first gear part (142) and a second gear part (143) arranged coaxially. The first gear part (142) meshes with the first bevel gear (13), and the second gear part (143) meshes with the transmission belt (2). A mounting post (141) is provided on the side of the second gear part (143) away from the first gear part (142). A first insertion hole (144) is opened at the end of the mounting post (141) away from the second gear part (143). The transmission rod (5) is inserted into the first insertion hole (144).

4. The foot adjustment system according to claim 2, characterized in that: The transmission cylinder (15) has a first bevel gear mounting groove (152) inside. The first bevel gear (13) is rotatably mounted inside the first bevel gear mounting groove (152). The first bevel gear (13) includes a gear part and a platform part located above the gear part. The platform part can abut against the inner side of the upper wall of the transmission cylinder (15).

5. The foot adjustment system according to claim 3, characterized in that: The transmission cylinder (15) also cooperates with the second bevel gear (14). The transmission cylinder (15) has a second bevel gear mounting groove (154) inside. The first gear part (142) of the second bevel gear (14) is rotatably mounted inside the second bevel gear mounting groove (154). The mounting post (141) passes through the transmission cylinder (15) and extends to the outside of the transmission cylinder (15). The transmission cylinder (15) has a connecting groove (157) for connecting an external transmission belt (2) at the position corresponding to the second gear part (143) on its side wall.

6. The foot adjustment system according to claim 2, characterized in that: The twisting assembly (3) includes a base plate (31), a side plate (32), and a twisting part (33). The side plate (32) is connected to the base plate (31) and is arranged perpendicular to the base plate (31). The twisting part (33) includes a twisting gear (331). The twisting gear (331) is rotatably engaged with the side plate (32), and the axis of the twisting gear (331) is perpendicular to the side plate (32). The twisting gear (331) meshes with the transmission belt (2) on both sides in the vertical direction. The side plate (32) has a gear mounting hole, and the transmission rod (5) is connected to the turning gear (331) through the gear mounting hole.

7. The foot adjustment system according to claim 6, characterized in that: A gear mounting groove is formed on the side of the side plate (32) away from the third foot (6). The gear mounting hole is provided on the bottom wall of the gear mounting groove. The turning gear (331) is placed in the gear mounting groove. A belt limiting plate (322) is connected to the two side walls of the gear mounting groove in the vertical direction. The belt limiting plate (322) is set parallel to the bottom wall. The transmission belt (2) is placed between the belt limiting plate (322) and the bottom wall.

8. The foot adjustment system according to claim 7, characterized in that, The rotating gear (331) has a rotating ring (333) on the side away from the bottom wall, and the rotating ring (333) has a handle (332) on the side away from the rotating gear (331). The two belt limiting plates (322) have arc-shaped grooves on their adjacent sides, and the rotating ring (333) is rotatably installed between the two arc-shaped grooves. The rotating gear (331) has a second insertion hole on the side near the third base (6), and the transmission rod (5) is inserted into the second insertion hole.

9. The foot adjustment system according to claim 6, characterized in that, The twisting assembly (3) also includes a connecting plate, which is fixed to the side of the base plate (31) away from the side plate (32). The two ends of the connecting plate are respectively connected to the transmission cylinders (15) of the first foot (1) and the second foot (4).

10. A household appliance, characterized in that: It includes the foot adjustment system as described in any one of claims 1-9.

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