Sofa bed combining strength and operation

Abstract

The utility model belongs to the technical field of sofa bed, specifically related to sofa bed of giving consideration to strength and operation. In view of the insufficient of the sofa bed with the pull activity assembly or the structural strength is lower or the operation is more laborsaving, the utility model adopts the following technical scheme: sofa bed of giving consideration to strength and operation includes: fixed assembly, including bed frame, the bed frame includes the length direction's bottom support spare, and the bottom support spare is located the front side edge of sofa bed, activity assembly, including pull frame and the bottom's gyro wheel subassembly, wherein, the bottom support spare forms the avoidance slot along the pull direction through, and the position of avoidance slot corresponds with the position of gyro wheel subassembly, and the opening of avoidance slot faces upwards. The utility model discloses sofa bed of giving consideration to strength and operation, and the bottom support spare of fixed assembly forms the avoidance slot along the pull direction through, and the gyro wheel subassembly can pass from the avoidance slot of bottom support spare, and the height that gyro wheel subassembly needs to cross is lower, and the operation is more relaxed, and still can guarantee better structural strength.

Description

Technical Field

[0001] This utility model belongs to the field of sofa bed technology, specifically relating to a sofa bed that balances strength and operability. Background Technology

[0002] A sofa bed combines the functions of a sofa and a bed, transforming into a bed when needed. One type of existing sofa bed uses a pull-out design, where the seat assembly is pulled out (potentially followed by other operations such as flipping). The seat assembly typically includes multiple casters at the bottom. During the pull-out process, the casters must pass over the base plate (or base tube) along the length of the bed frame. While a thinner base plate facilitates this process, it also reduces structural strength and makes connections to other components more difficult. Conversely, a thicker base plate provides better structural strength but makes the process more strenuous and requires more effort from the casters. Summary of the Invention

[0003] This invention addresses the shortcomings of existing sofa beds with pull-out assemblies, which either have low structural strength or are difficult to operate, by providing a sofa bed that balances strength and ease of use.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a sofa bed that balances strength and operability, comprising:

[0005] The fixed assembly includes a bed frame, the bed frame including a bottom support member in the longitudinal direction, the bottom support member being located at the front edge of the sofa bed;

[0006] The activity assembly includes a pull-out drawer and a bottom caster assembly;

[0007] The bottom support has a relief groove that runs through the pull-out direction. The position of the relief groove corresponds to the position of the roller assembly, and the opening of the relief groove faces upward.

[0008] This utility model provides a sofa bed that balances strength and ease of use. The bottom support of the fixed assembly has a relief groove that runs through the pull-out direction. The position of the relief groove corresponds to the position of the roller assembly. When the movable assembly is pulled out, the roller assembly can pass through the relief groove of the bottom support. The roller assembly needs to pass through a lower height, making operation easier, while still ensuring good structural strength.

[0009] As an improvement, the bottom support is made of a square tube, which has a flattened portion and forms the aforementioned clearance groove.

[0010] As an improvement, the square tube also has a square section and a transition section, with the transition section located between the square section and the flattened section. The height of the transition section decreases from the square section to the flattened section, while the width gradually increases. The height of the square section of the square tube is less than its width.

[0011] As an improvement, the flattened part has a horizontal upper surface.

[0012] As an improvement, the bottom support is flat.

[0013] As an improvement, the bottom support component is made of plastic.

[0014] As an improvement, the two sides and the top surface of the clearance groove are smoothly transitioned along the pulling direction.

[0015] As an improvement, the roller assembly includes two front rollers and two rear rollers.

[0016] As an improvement, the two front wheels and two rear wheels are staggered along the length of the sofa bed, and the four wheels are distributed in an isosceles trapezoidal shape.

[0017] As an improvement, two clearance grooves are formed on the bottom support member that run through the pull-out direction, and the positions of the two clearance grooves correspond to a set of front and rear rollers respectively.

[0018] As an improvement, the sum of the lengths of the two clearance slots is less than 1 / 2 of the total length of the bottom support.

[0019] The advantages of this sofa bed, which balances strength and operability, are as follows: a clearance groove is formed on the bottom support of the fixed assembly, which runs through the pull-out direction. The position of the clearance groove corresponds to the position of the roller assembly. When the movable assembly is pulled out, the roller assembly can pass through the clearance groove of the bottom support. The roller assembly needs to cross a lower height, making operation easier, while still ensuring good structural strength. Attached Figure Description

[0020] Figure 1 and Figure 2 This is a structural diagram of a sofa bed that balances strength and operability from different angles, according to Embodiment 1 of this utility model.

[0021] Figure 3 and Figure 4 This is a schematic diagram of the bottom support component of a sofa bed that balances strength and operability at different angles, according to Embodiment 1 of this utility model.

[0022] In the diagram, 01 is the fixed assembly; 02 is the movable assembly.

[0023] 1. Bottom support component; 11. Square section; 12. Transition section; 13. Flattened section; 14. Clearance groove;

[0024] 21. Front roller; 22. Rear roller. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be explained and described below. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0026] See Figures 1 to 4 The sofa bed of this utility model, which balances strength and operability, includes:

[0027] The fixed assembly includes a bed frame, the bed frame including a bottom support member in the longitudinal direction, the bottom support member being located at the front edge of the sofa bed;

[0028] The activity assembly includes a pull-out drawer and a bottom caster assembly;

[0029] The bottom support has a relief groove that runs through the pull-out direction. The position of the relief groove corresponds to the position of the roller assembly, and the opening of the relief groove faces upward.

[0030] This utility model provides a sofa bed that balances strength and ease of use. The bottom support of the fixed assembly has a relief groove that runs through the pull-out direction. The position of the relief groove corresponds to the position of the roller assembly. When the movable assembly is pulled out, the roller assembly can pass through the relief groove of the bottom support. The roller assembly needs to pass through a lower height, making operation easier, while still ensuring good structural strength.

[0031] Example 1

[0032] See Figures 1 to 4 The sofa bed of this utility model embodiment one, which balances strength and operability, includes:

[0033] The fixed assembly 01 includes a bed frame, the bed frame including a bottom support 1 in the longitudinal direction, the bottom support 1 being located at the front edge of the sofa bed;

[0034] Activity assembly 02 includes a pull-out bracket and a bottom caster assembly;

[0035] Among them, the bottom support member 1 has a relief groove 14 that runs through the pull-out direction. The position of the relief groove 14 corresponds to the position of the roller assembly, and the opening of the relief groove 14 faces upward.

[0036] In this embodiment, the bottom support member 1 is made of a square tube, which has a flattened portion 13 and forms the aforementioned clearance groove 14.

[0037] In this embodiment, the square tube also has a square portion 11 and a transition portion 12. The transition portion 12 is located between the square portion 11 and the flattened portion 13. The height of the transition portion 12 decreases from the square portion 11 to the flattened portion 13, while the width gradually increases. The height of the square portion 11 of the square tube is less than its width.

[0038] In this embodiment, the flattened portion 13 has a horizontal upper surface.

[0039] In other embodiments, the bottom support 1 is flat, such as being cut from sheet metal.

[0040] In other embodiments, the bottom support 1 may also be a plastic part, which directly forms the clearance groove 14 during molding.

[0041] In this embodiment, the two sides and the upper surface of the relief groove 14 along the pulling direction are smoothly transitioned.

[0042] In this embodiment, the roller assembly includes two front rollers 21 and two rear rollers 22.

[0043] In this embodiment, the two front rollers 21 and the two rear rollers 22 are staggered along the length of the sofa bed, and the four rollers are distributed in an isosceles trapezoidal shape.

[0044] In this embodiment, two clearance grooves 14 are formed on the bottom support member 1, which extend through the pull-out direction. The positions of the two clearance grooves 14 correspond to a set of front and rear rollers 22, respectively.

[0045] In this embodiment, the sum of the lengths of the two clearance grooves 14 is less than 1 / 2 of the total length of the bottom support member 1.

[0046] In this embodiment, to ensure that the pull-out assembly does not deviate or deviates almost completely during the process of moving in and out, an additional guide structure can be provided.

[0047] The beneficial effects of the sofa bed in Embodiment 1 of this utility model, which balances strength and operability, are as follows: A relief groove 14 is formed on the bottom support member 1 of the fixed assembly 01, which runs through the pull-out direction. The position of the relief groove 14 corresponds to the position of the roller assembly. When the movable assembly 02 is pulled out, the roller assembly can pass through the relief groove 14 of the bottom support member 1. The height that the roller assembly needs to cross is lower, making the operation easier, while still ensuring good structural strength.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the content described in the above specific embodiments. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A sofa bed that balances strength and ease of use, characterized by: Sofa beds that balance strength and ease of use include: The fixed assembly (01) includes a bed frame, the bed frame including a bottom support (1) in the longitudinal direction, the bottom support (1) being located at the front edge of the sofa bed; The active assembly (02) includes a pull-out bracket and a bottom caster assembly; Among them, a relief groove (14) is formed on the bottom support member (1) through the pulling direction. The position of the relief groove (14) corresponds to the position of the roller assembly, and the opening of the relief groove (14) faces upward.

2. The sofa bed that balances strength and operability according to claim 1, characterized in that: The bottom support member (1) is made of square tube, which has a flattened portion (13) and forms the aforementioned clearance groove (14).

3. The sofa bed that balances strength and operability according to claim 2, characterized in that: The square tube also has a square portion (11) and a transition portion (12), the transition portion (12) being located between the square portion (11) and the flattened portion (13). The height of the transition portion (12) decreases from the square portion (11) to the flattened portion (13), and the width gradually increases. The height of the square portion (11) of the square tube is less than its width.

4. The sofa bed that balances strength and operability according to claim 2, characterized in that: The flattened part (13) has a horizontal upper surface.

5. The sofa bed that balances strength and operability according to claim 1, characterized in that: The bottom support (1) is flat; the bottom support (1) is made of plastic.

6. The sofa bed that balances strength and operability according to any one of claims 1 to 5, characterized in that: The two sides and the top surface of the relief groove (14) are smoothly transitioned along the pulling direction.

7. The sofa bed that balances strength and operability according to any one of claims 1 to 5, characterized in that: The roller assembly includes two front rollers (21) and two rear rollers (22).

8. The sofa bed that balances strength and operability according to claim 7, characterized in that: Two front rollers (21) and two rear rollers (22) are staggered along the length of the sofa bed, and the four rollers are distributed in an isosceles trapezoidal shape.

9. The sofa bed that balances strength and operability according to claim 7, characterized in that: Two clearance grooves (14) are formed on the bottom support member (1) through the pulling direction, and the positions of the two clearance grooves (14) correspond to a set of front and rear rollers (22).

10. The sofa bed that balances strength and operability according to claim 9, characterized in that: The sum of the lengths of the two clearance slots (14) is less than 1 / 2 of the total length of the bottom support (1).

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