End fastener for sofa seat surface material

Abstract

The utility model belongs to the technical field of furniture accessories, and particularly relates to an end fastener for a sofa seat surface material. The structure of the end fastener comprises an insertion strip used for being connected with the end of a surface material, and a cavity providing strip which is arranged on the insertion strip in a sleeving mode and used for pressing and fixing the insertion strip in a surface material extrusion mode. The end part fastener at least has the beneficial effects that the end part fastener has a self-locking function, the surface material directly extrudes the cavity providing strip and indirectly presses, fixes and inserts the strip, so that the buckling strength is higher, and the durability is better.

Description

Technical Field

[0001] This application belongs to the field of furniture accessories technology, and in particular relates to an end fastener for the surface material of sofa seats. Background Technology

[0002] The surface materials of furniture such as sofas and chairs include leather and fabrics. The installation method of the above surface materials on the main body of the sofa / chair is generally end fixing, that is, after the elastic material is covered in the middle area of ​​the surface material, it is fixed around the edge to obtain a stable sofa / chair upholstery.

[0003] Generally, the aforementioned end-fixing methods are mainly divided into detachable and non-detachable types. The former requires the use of the aforementioned end fasteners, while the latter mainly refers to methods such as nailing and gluing.

[0004] Furthermore, the aforementioned end fasteners can be further subdivided into strip fasteners and point fasteners. Common strip fasteners include Velcro and snap fastener strips, while common point fasteners include buttons and snap buttons.

[0005] For example, Chinese utility model patent with authorization announcement number CN207617575U and authorization announcement date of July 17, 2018 discloses a face mask bracket fastening assembly, the structure of which includes a mating body, an anti-slip boss, a curved part, an inward part, a reverse curved part, an insertion body, a fastening tongue, and an outward part, etc.

[0006] The advantages of the snap-fit ​​component in this utility model patent are that it enables quick assembly of car seat covers and ensures that the car seat covers are fixed in place, making it less likely for the seat covers to fall off.

[0007] However, in actual use, this fastening assembly still has at least the following problems: insufficient fastening strength and easy accidental separation, specifically:

[0008] Once the curved part is pulled outward and deformed, it will no longer press the insert inward, which will eventually cause the latch and the anti-slip boss to easily separate, making the fastening effect not stable enough, or rather, difficult to be stable for a long time. Utility Model Content

[0009] This application provides an end fastener for sofa seat surface material, and the technical problem to be solved is: how to make the end fastener have a long-term stable fastening effect.

[0010] The technical solution adopted by this application to solve the above problems is: an end fastener for sofa seat surface material, the structure of which includes an insert strip for connecting the end of the surface material, and a cavity supply strip sleeved on the insert strip and used to press and fix the insert strip by means of surface material extrusion.

[0011] A further preferred technical solution is that the insertion strip includes an end on one side for connecting to the surface material and a main body on the other side for inserting into the cavity supply strip.

[0012] A further preferred technical solution is that the cavity providing strip includes an installation part for connecting the surface material and / or the main body of the sofa seat, a transition part disposed on the installation part, and a pressure plate part disposed on the transition part, which is pressed by the surface material and used to press and fix the main body part.

[0013] A further preferred technical solution is that: the insertion strip further includes a protrusion disposed on the main body and located on the same side as the end of the surface material; the cavity providing strip further includes a sealing portion disposed on the mounting portion and used to support the protrusion.

[0014] A further preferred technical solution is that: the insertion strip further includes a first folded plate portion disposed on the insertion end of the main body; the cavity providing strip further includes a first blocking strip portion disposed on the mounting portion and used to prevent the first folded plate portion from falling off and fixing it.

[0015] A further preferred technical solution is that: the insertion strip further includes a second folded plate portion disposed on the first folded plate portion; the cavity providing strip further includes a second blocking strip portion disposed on the transition portion and used to prevent the second folded plate portion from falling off and fixing it.

[0016] A further preferred technical solution is that the distance between the side of the pressure plate that connects to the transition portion and the mounting portion is greater than the distance between the other symmetrical side and the mounting portion.

[0017] A further preferred technical solution is that: the connection between the first folding plate section and the second folding plate section is provided with an outer chamfer for engaging the first blocking strip section.

[0018] A further preferred technical solution is that the cavity providing strip also includes glue receiving grooves respectively disposed on two sides of the mounting part and used to increase the bonding strength.

[0019] A further preferred technical solution is that the insertion strip further includes an adhesive reinforcement groove disposed on the main body and located on the same side as the protrusion.

[0020] The beneficial effects of this application include at least the following four points.

[0021] First, the end fastener has a self-locking function. The surface material directly presses against the cavity to provide the strip and indirectly presses against the fixed insertion strip, resulting in greater fastening strength and better durability.

[0022] Secondly, in the composition of the end fastener itself, the insert strip and the cavity providing strip have a strong abutting effect and a strong anti-detachment fixing effect, so the basic fastening strength is relatively large.

[0023] Third, the end fastener is flexible and versatile enough to connect the two ends of one surface material, two surface materials, and one surface material and the main body of the sofa seat.

[0024] Fourth, this end fastener can provide a stronger bonding and fixing effect to the surface material and the main body of the sofa seat. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating one possible use of this application.

[0026] Figure 2 A schematic diagram of the structure of the cavity provided in this application.

[0027] Figure 3 This is a schematic diagram of the structure of the insertion strip in this application.

[0028] Figure 4 This is a schematic diagram of the first transitional state of the fastening process in this application.

[0029] Figure 5 This is a schematic diagram of the second transitional state of the fastening process in this application.

[0030] Figure 6 This is a schematic diagram of the third transitional state of the fastening process in this application.

[0031] Figure 7 This is a schematic diagram of the fourth transitional state of the fastening process in this application.

[0032] Figure 8 This is a schematic diagram of one possible usage location for this application.

[0033] Figure 9 This is a schematic diagram illustrating another use of this application.

[0034] Figure 10 This is a schematic diagram showing the location and shape of the glue receiving tank in this application.

[0035] The meanings of the markings in the diagram are as follows.

[0036] Surface materials: a) Sofa and seat body; b) Seat board; c) Fastener adhesive layer; d)

[0037] Insertion bar 1, cavity supply bar 2;

[0038] Main body 101, protrusion 102, first folded plate section 103, second folded plate section 104, adhesive reinforcing groove 105;

[0039] Mounting section 201, transition section 202, pressure plate section 203, sealing section 204, first blocking strip section 205, second blocking strip section 206, and glue receiving tank 207. Detailed Implementation

[0040] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.

[0041] like Figures 1-10 As shown, an end fastener for a sofa seat surface material includes an insert strip 1 for connecting the end of the surface material a, and a cavity supply strip 2 that is sleeved on the insert strip 1 and pressed by the surface material a to press and fix the insert strip 1.

[0042] In this embodiment, both the insertion strip 1 and the cavity providing strip 2 are made of rubber, and both have the same cross-sectional shape and size.

[0043] Generally, this end fastener is used without bending, as bending it results in relatively low stability of the fastening between the insert strip 1 and the cavity providing strip 2. This end fastener can be used on the seat, backrest, and armrest of sofas and chairs, and the surface material a can be leather, velvet, or fabric.

[0044] In this configuration, the insertion strip 1 and the cavity supply strip 2 are installed in a mutually inserted and interlocked state, and the retraction direction of the surface material a is exactly opposite to the direction of disengagement. Therefore, the interlocking structure of the insertion strip 1 and the cavity supply strip 2 itself already possesses relatively sufficient stability, i.e., the aforementioned self-locking state.

[0045] Furthermore, in the installation state of the insertion strip 1 and the cavity providing strip 2, the surface material a directly presses the cavity providing strip 2, thereby causing the cavity providing strip 2 to press and fix the insertion strip 1, further enhancing the strength of the above self-locking state and ensuring that the end fastener has a stable fastening function with high strength and good durability.

[0046] The insertion strip 1 includes a main body 101 with one end for connecting to the surface material a and the other end for inserting into the cavity supply strip 2.

[0047] In this embodiment, the main body 101 is bonded to the surface material a. The two actions of inserting the main body 101 into the cavity supply strip 2 and pulling it out of the cavity supply strip 2 both require appropriate further stretching of the surface material a.

[0048] When the main body 101 is correctly inserted into the cavity supply strip 2 and the two are stably installed, the surface material a is stretched relatively slightly. The retraction force of this stretched state can fully and appropriately strengthen the stability of the insertion and fastening of the main body 101 and the cavity supply strip 2.

[0049] The cavity providing strip 2 includes a mounting portion 201 for connecting surface material a and / or sofa seat body b, a transition portion 202 disposed on the mounting portion 201, and a pressure plate portion 203 disposed on the transition portion 202, pressed by the surface material a, and used to press and fix the body portion 101.

[0050] In this embodiment, the installation and use of the end fastener are specifically carried out in the following three ways.

[0051] First, the main body 101 is bonded to the first piece of surface material a, and the mounting part 201 is bonded to the second piece of surface material a. The end fastener is used to connect two pieces of leather fabric, one above the other or one inside and one outside.

[0052] Second, the main body 101 is bonded to surface material a, and the mounting part 201 is bonded to the sofa seat body b. This method is mostly used for the seat board of sofa seats because the lower surface of the seat board generally does not need to be covered with fabric.

[0053] Third, the main body 101 and the mounting part 201 are respectively bonded to the two ends of the same surface material a, so as to completely wrap the sofa seat body b and elastic materials such as sponge inside.

[0054] The cavity provides a U-shaped cross-section for the strip 2, and the length of the mounting portion 201 is greater than that of the pressure plate portion 203.

[0055] The insertion strip 1 further includes a protrusion 102 disposed on the main body 101 and located on the same side as the end of the surface material a; the cavity providing strip 2 further includes a sealing part 204 disposed on the mounting part 201 and used to support the protrusion 102.

[0056] In this embodiment, since the hardness, coefficient of friction and other parameters of the surface material a are uncontrollable, applying the final pressing and closing effect of the end fastener to the end fastener made of rubber material with relatively high hardness and coefficient of friction is a relatively stable and safe choice.

[0057] Therefore, the taut surface material a ultimately presses the protrusion 102 and the sealing part 204 together, so that the two protrusions are fully pressed together, thereby improving the stability of the fastening state of the end fastener.

[0058] Please refer to the appendix for details. Figure 1Even if the surface material a is relatively thin and cannot abut or clamp against each other, it does not affect the fastening stability of the end fastener.

[0059] Finally, the protrusion 102 and the sealing part 204 are respectively the effective bonding depth indicators of the surface material a on the insertion strip 1 and the cavity providing strip 2. If the end side of the surface material a does not touch the protrusion 102 or the sealing part 204, it indicates that the bonding area is too small and the surface material a is easy to fall off, which is not allowed.

[0060] The insertion strip 1 further includes a first folded plate portion 103 disposed on the insertion end of the main body portion 101; the cavity providing strip 2 further includes a first blocking strip portion 205 disposed on the mounting portion 201 and used to prevent the first folded plate portion 103 from falling off and fixing it.

[0061] As attached Figure 1 and 9 As shown, if the insertion strip 1 detaches from the cavity supply strip 2, the first folded plate portion 103 must extend outward past the first blocking strip portion 205. Therefore, the blocking effect of the first blocking strip portion 205 on the first folded plate portion 103 can improve the fastening strength of the end fastener.

[0062] Correspondingly, when installing the end fastener, the insertion strip 1 needs to be inserted with appropriate force so that the first folded plate portion 103 passes inward over the first blocking strip portion 205.

[0063] The term "outward" refers to the movement of the first folding plate 103 toward the opening of the cavity providing strip 2. This is reflected in the attached... Figure 1 and 9 In the middle, the direction is downward in the diagram. Conversely, the "inward" direction mentioned above corresponds to the upward direction in the diagram.

[0064] The insertion strip 1 also includes a second folded plate portion 104 disposed on the first folded plate portion 103; the cavity providing strip 2 also includes a second blocking strip portion 206 disposed on the transition portion 202 and used to prevent the second folded plate portion 104 from falling off and fixing it.

[0065] In this embodiment, the interaction and assembly / disassembly method between the second folding plate portion 104 and the second blocking strip portion 206 are consistent with the usage of the first folding plate portion 103 and the first blocking strip portion 205.

[0066] The included angle between the main body 101 and the first folding plate 103 is an obtuse angle, while the included angle between the first folding plate 103 and the second folding plate 104 is an acute angle. Both the insert strip 1 and the cavity supply strip 2 are manufactured using a one-time extrusion molding process.

[0067] The distance between the side of the pressure plate portion 203 connected to the transition portion 202 and the mounting portion 201 is greater than the distance between the other symmetrical side and the mounting portion 201.

[0068] In this embodiment, the U-shaped opening of the cavity providing the strip 2 is a "recessed" style, that is, the "cavity" for inserting the insertion strip 1 is larger inside and smaller outside. The advantage of this specific shape is that the pressure plate part 203 can properly press and fix the main body part 101 even without the surface material a pressing, ensuring that the end fastener has basic, relatively high strength fastening stability.

[0069] The connection between the first folding plate portion 103 and the second folding plate portion 104 is provided with an outer chamfer for engaging the first blocking strip portion 205.

[0070] In this embodiment, the aforementioned outer chamfer shape can provide a larger effective engagement size in the mutual engagement state of the first folding plate portion 103 and the first blocking strip portion 205, ensuring that the engagement state is more stable.

[0071] The cavity providing strip 2 also includes glue receiving grooves 207 respectively disposed on two sides of the mounting part 201 and used to increase the bonding strength.

[0072] In this embodiment, the cross-sectional shape of the glue receiving groove 207 is rectangular, semi-circular, or triangular, and it is also extruded together with the entire cavity providing strip 2.

[0073] Wherein, the glue receiving groove 207 does not need to be provided on the inner side of the sealing part 204, because the bonding position of the surface material a is only on the outer side of the sealing part 204.

[0074] The insert 1 also includes an adhesive reinforcement groove 105 disposed on the main body 101 and located on the same side as the protrusion 102.

[0075] In this embodiment, the shape, molding method and usage method of the adhesive reinforcement groove 105 are the same as those of the glue receiving groove 207, and both can include 3-10 parallel channels.

[0076] Finally, the installation method for this end fastener can be found in the appendix. Figure 4 , 56, 7, and 1 correspond to the following four transition states and one completion state, respectively:

[0077] Hook, rotate, enter, squeeze over, and snap.

[0078] In the aforementioned “squeezing over” process, the first section of the folded plate 103 first passes over the first blocking strip 205, and then the second section of the folded plate 104 passes over the second blocking strip 206.

[0079] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. An end fastener for a sofa seat surface material, characterized in that: The structure includes an insert (1) for connecting the end of the surface material (a) and a cavity supply strip (2) sleeved on the insert (1) and pressed by the surface material (a) to press and fix the insert (1).

2. The end fastener for a sofa seat surface material according to claim 1, characterized in that: The insertion strip (1) includes an end on one side for connecting to the surface material (a) and a main body (101) on the other side for inserting into the cavity supply strip (2).

3. The end fastener for a sofa seat surface material according to claim 2, characterized in that: The cavity providing strip (2) includes a mounting part (201) for connecting the surface material (a) and / or the sofa seat body (b), a transition part (202) provided on the mounting part (201), and a pressure plate part (203) provided on the transition part (202), which is pressed by the surface material (a) and used to press and fix the body part (101).

4. The end fastener for a sofa seat surface material according to claim 3, characterized in that: The insert (1) further includes a protrusion (102) disposed on the main body (101) and located on the same side as the end of the surface material (a); the cavity providing strip (2) further includes a sealing portion (204) disposed on the mounting portion (201) and used to support the protrusion (102).

5. The end fastener for a sofa seat surface material according to claim 3, characterized in that: The insertion strip (1) further includes a first folded plate section (103) disposed on the insertion end of the main body (101); the cavity providing strip (2) further includes a first blocking strip section (205) disposed on the mounting part (201) and used to prevent the first folded plate section (103) from falling off and fixing it.

6. The end fastener for a sofa seat surface material according to claim 5, characterized in that: The insertion strip (1) further includes a second folded plate section (104) disposed on the first folded plate section (103); the cavity providing strip (2) further includes a second blocking strip section (206) disposed on the transition section (202) and used to prevent the second folded plate section (104) from falling off and fixing it.

7. The end fastener for a sofa seat surface material according to claim 3, characterized in that: The distance between the side of the pressure plate (203) connected to the transition part (202) and the mounting part (201) is greater than the distance between the other symmetrical side and the mounting part (201).

8. An end fastener for a sofa seat surface material according to claim 6, characterized in that: The connection between the first folding plate portion (103) and the second folding plate portion (104) is provided with an outer chamfer for engaging the first blocking strip portion (205).

9. An end fastener for a sofa seat surface material according to claim 3, characterized in that: The cavity supply strip (2) also includes glue receiving grooves (207) respectively disposed on two sides of the mounting part (201) for increasing the bonding strength.

10. An end fastener for a sofa seat surface material according to claim 4, characterized in that: The insert (1) also includes an adhesive reinforcement groove (105) disposed on the main body (101) and located on the same side as the protrusion (102).

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