Sofa bag closing-up structure
By installing the L-shaped hard foam support module at the corners of the bottom frame of the sofa, the problem of difficulty in flattening the packaging cloth at the corners of the base is solved, and the effect of simplifying production and reducing costs is achieved.
Patent Information
- Application Number
- CN202422219740.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In the production of existing sofas, it is difficult to keep the packaging cloth flat at the corners of the base, the workers have high technical requirements, the manufacturing process is cumbersome, and it is prone to irregular situations.
The L-shaped support module is installed at the corners of the bottom frame of the sofa. The vertical part of the support module is fitted with the vertical edge, the horizontal part is fitted with the horizontal edge, and a countersunk hole slot is set at the lower end of the horizontal part, which is fixed with fixing nails. The support module is made of hard foam, which is suitable for the thickness of the sponge. The support module is set with an arc-shaped mounting surface on the support module to facilitate folding of the packaging cloth.
It improves the flatness of the packaging cloth, reduces the technical requirements of workers, simplifies the production process, and reduces production costs.
Smart Images

Figure CN223111326U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sofas, in particular to a sofa wrapping and closing structure. Background Art
[0002] A sofa is a common soft furniture in daily life at present. When manufacturing a sofa, usually a wooden frame of the sofa is made of wood, sponge blocks are laid on the frame, and finally a layer of wrapping cloth is wrapped outside the sponge blocks. At present, when packaging and processing the wooden base of the sofa, its structure is as Figure 1 shown. The sponge 2' is directly laid on the vertical surface of the base 1', and then the wrapping cloth 3' is directly wrapped outside the sponge 2'. After the lower end of the wrapping cloth 3' finishes wrapping the sponge 2', it needs to be folded to the bottom surface of the base 1' and fixed with nails 4'. This manufacturing method has great defects. First, the sofa production has relatively high requirements for the proficiency of workers; second, since the wrapping cloth 3' is directly folded at the corner of the base 1', and the sponge 2' is a soft material, it is very difficult for the wrapping cloth 3' to keep the whole sponge flat at its folding position. For the sofa manufactured in this way, the wrapping cloth 3' is very likely to be uneven at the corner of its base; third, after the wrapping cloth 3' is wrapped outside the sponge 2', it is necessary to continuously pull the wrapping cloth 3' to make the wrapping cloth 3' as flat as possible after the wrapping is completed, and the manufacturing process is very cumbersome. Content of the Utility Model
[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a sofa wrapping and closing structure, so as to effectively solve the deficiencies existing in the prior art.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a sofa wrapping and closing structure, including an L-shaped support module installed at the corners of the bottom frame of the sofa. The support module is wrapped and installed at the corners of the frame. The vertical part of the support module is attached to the vertical edge of the bottom frame of the sofa, and the horizontal part of the support module is attached to the horizontal edge of the bottom frame of the sofa.
[0005] Further, a horizontal countersunk hole groove is arranged on the lower end surface of the horizontal part of the support module.
[0006] Further, the inner and outer corners of the support module are both rounded.
[0007] Further, the thickness of the vertical part of the support module is adapted to the thickness of the sponge filled on the sofa.
[0008] Further, the material of the support module is rigid foam.
[0009] Further, an arc-shaped mounting surface is provided at the end of the horizontal portion of the support module, and the mounting surface is located on the side of the horizontal portion away from the sofa frame.
[0010] The above technical solution of the present utility model has the following beneficial effects: By providing a support module at the corner of the wooden frame at the bottom of the sofa, the sponge is laid on the vertical surface of the bottom frame, and the upper end of the support module supports the lower end of the sponge. When the packaging cloth is used for wrapping, the packaging cloth can be directly folded and fixed along the support module. When the packaging cloth is folded, the sponge will not be squeezed, which facilitates the staff to align the packaging cloth. The sofa produced in this way has a more flat packaging cloth at the bottom, improving the appearance quality of the sofa. Moreover, when producing the sofa in this way, the technical requirements for workers are lower, and the workers can quickly complete the production of the sofa, saving time and effort and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic cross-sectional structure diagram of the prior art of the present utility model;
[0012] Figure 2 is a schematic main structure diagram of an embodiment of the present utility model;
[0013] Figure 3 is a schematic installation cross-sectional diagram of an embodiment of the present utility model;
[0014] Figure 4 is a schematic installation cross-sectional diagram of the second embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] In order to more clearly understand the above objects, features, and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0016] Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.
[0017] As Figure 2-3 shown, the sofa wrapping and closing structure in this embodiment includes an L-shaped support module 2 installed at the corner of the bottom frame 1 of the sofa. The support module 2 is wrapped and installed at the corner of the frame 1. The vertical portion of the support module 2 is attached to the vertical side of the bottom frame 1 of the sofa, and the horizontal portion of the support module 2 is attached to the horizontal side of the bottom frame 1 of the sofa.
[0018] Preferably, the support module 2 is provided with a transverse countersunk hole groove 21 on the lower end surface of its transverse portion. The countersunk hole groove 21 is used to drive in the first fixing nail 5. The first fixing nails 5 are evenly driven in along the countersunk hole groove 21, so as to fix the support module 2 on the bottom frame 1 of the sofa.
[0019] Preferably, the inner and outer angles of the support module 2 are both rounded. After the rounding treatment, the edges and corners of the support module 2 become smooth, thereby preventing the packaging cloth 4 from being excessively worn at the edges and corners of the support module 2.
[0020] Preferably, the thickness of the vertical portion of the support module 2 is adapted to the thickness of the sponge 3 filled on the sofa. As shown in the figure, the sponge 3 is attached to the vertical surface of the bottom frame 1, and the lower end of the sponge 3 is located at the vertical portion of the support module 2. Since its vertical portion is of the same thickness as the sponge 3, when the packaging cloth 4 is wrapped, it can be directly pulled and folded. When the packaging cloth 4 is folded towards the bottom surface of the bottom frame 1, the sponge 3 will not be deformed.
[0021] Preferably, the material of the support module 2 is rigid foam. The rigid foam makes the support module 2 have a certain hardness by itself. When placed naturally, the support module 2 will not be deformed, thus playing a good supporting role. When pressure is applied to the surface of the support module 2, the support module 2 will have a slight deformation like a foam product, thus playing a buffering role and avoiding wear caused by the hard contact between the packaging cloth 4 and the support module 2.
[0022] As Figure 3 shown, in the second embodiment, an arc-shaped mounting surface 22 is provided at the end of the transverse portion of the support module 2. The mounting surface 22 is located on the side of the transverse portion away from the bottom frame 1 of the sofa. The setting of the arc-shaped mounting surface 22 enables the packaging cloth 4 to be arranged along the arc surface in a fitting manner, so that there will be no excessive gap between the packaging cloth 4 and the bottom frame 1 of the sofa.
[0023] When the utility model is processed and manufactured, first place the support module 2 at the corner of the bottom frame 1 of the sofa. The included angle on the support module 2 just fits with the corner of the bottom frame 1. Then use a nail gun to drive the first fixing nail 5 along the countersunk hole groove 21, so as to fixedly connect the support module 2 and the bottom frame 1. The nail head of the first fixing nail 5 is located inside the countersunk hole groove 21 and will not be exposed, thus preventing the nail head from contacting the packaging cloth 4 and causing wear. Then place the sponge on the vertical surface of the bottom frame 1, and the end of the sponge abuts against the end face of the vertical part of the support module 2, so as to wrap the packaging cloth 4 along the outside of the sponge and the support module 2. The packaging cloth 4 is folded at the included angle of the support module 2, so that the packaging cloth 4 extends towards the lower end face of the bottom frame 1. After the packaging cloth 4 is folded, the pulling force generated by its wrapping acts on the support module 2 and will not squeeze the sponge 3, thus ensuring the flatness of the processing of the packaging cloth 4 at the sofa base. Finally, use a nail gun to drive the second fixing nail 6 through the packaging cloth 4 and the lower end face of the bottom frame 1 to fix the packaging cloth 4, and thus the processing and manufacturing of the sofa base are completed.
[0024] The support module 2 in the utility model can also be used for installation at the included angle positions such as the side vertical surface of the overall sofa frame.
[0025] The embodiments of the utility model are given for the purposes of illustration and description, and are not exhaustive or limit the utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the utility model and its practical application, and to enable those of ordinary skill in the art to understand the utility model and design various embodiments with various modifications suitable for specific purposes.
Claims
1. A sofa bag-making closing structure, characterized in that: It includes an L-shaped support module installed at the corners of the bottom frame of the sofa. The support module is wrapped and installed at the corners of the frame. The vertical part of the support module fits against the vertical edge of the bottom frame of the sofa, and the horizontal part of the support module fits against the horizontal edge of the bottom frame of the sofa.
2. The closing structure for sofa covering according to claim 1, wherein: The support module is provided with a transverse countersunk hole groove on the lower end surface of its horizontal part.
3. The mouth-closing structure for sofa covering according to claim 2, characterized in that: The support module is rounded at both its inner and outer angles.
4. The mouth-closing structure of the sofa wrapping according to claim 3, characterized in that: The thickness of the vertical part of the support module is adapted to the thickness of the sponge filled on the sofa.
5. The closing structure for sofa covering according to claim 4, wherein: The material of the support module is rigid foam.
6. The closing structure for wrapping a sofa according to claim 1, wherein: An arc-shaped mounting surface is provided at the end of the horizontal part of the support module, and the mounting surface is located on the side of the horizontal part away from the sofa frame.