Pre-assembled assembly having pre-mounted fastener

Abstract

A pre-assembled assembly having a pre-mounted fastener, comprising a pre-positioning member (1) and a fastener (3) fastened in the pre-positioning member (1), wherein the pre-positioning member (1) comprises a main body (11), a snap (12) and deformable members, the snap (12) extends from the outer surface of the main body (11), a member to be mounted comprises an abutting portion (21) mating with the snap (12), the pre-positioning member (1) is fastened and limited to the member to be mounted by means of the snap (12), the deformable members of the pre-positioning member (1) extend inwards from the inner surface of the main body (11) to clamp a head portion (31) of the fastener (3), and the deformable members deform under a first external force so as to disengage the fastener (3). According to the pre-assembled assembly, the fastener (3) is fastened in the pre-positioning member for modular design, for example, a bolt and a slide rail are delivered together, so that a client does not need to be separately provided with the fastener (3), thereby greatly shortening the mounting time of the client.

Description

A preassembly assembly preassembled with fasteners TECHNICAL FIELD

[0001] The present application relates to a vehicle, and more particularly to a preassembly assembly preassembled with fasteners. BACKGROUND

[0002] Referring to FIG. 10, the installation process of the prior art slide rail body bolt at the client side includes: preassembling the slide rail 100 (i.e. inserting the positioning pin into the hole of the vehicle body floor) to ensure that the slide rail 100 will not be displaced during the installation process, then placing the vehicle body bolt 400 into the vehicle body hole 200 after the plastic trim covering the vehicle body hole 200 is pushed away, and finally tightening the vehicle body bolt 400 using the tool 500. In this process, the operator needs to push away the trim with one hand, hold a vehicle body bolt 400 with the other hand, and then screw a few threads into the vehicle body hole 200, and finally tighten it with the tool 500. Due to the narrow space of the vehicle body, the client is not only inconvenient but also consumes a long time to install the vehicle body bolt 400 in the vehicle body environment. In addition, due to the current variety and non-uniformity of vehicle body bolts 400, different clients are equipped with different vehicle body bolts, and different vehicle body bolt holes are required for slide rail design. Further, in the process of tightening the vehicle body bolt 400 using the tool 500, the tool 500 is easily tilted during rotation, causing the tool 500 or the vehicle body bolt 400 to scratch the adjacent lead screw 600, resulting in abnormal noise. SUMMARY

[0003] In order to solve the problem of long time consumption in the installation of the client in the prior art, the present application provides a preassembly assembly preassembled with fasteners.

[0004] The preassembly assembly preassembled with fasteners according to the present application comprises a pre-positioning member and a fastener clamped in the pre-positioning member, wherein the pre-positioning member comprises a main body, a clasp and a deformation member, the clasp extends from the outer surface of the main body, the to-be-installed member comprises an abutting portion matched with the clasp, the pre-positioning member is clamped to the to-be-installed member through the clasp, and the deformation member of the pre-positioning member extends inward from the inner surface of the main body to clamp the head of the fastener, and the deformation member is deformed under a first external force to release the clamping of the fastener on the abutting portion.

[0005] In a preferred embodiment, the clasp comprises a spring piece and an extension piece, wherein the spring piece extends obliquely from the outer surface of the main body, the free end surface of the spring piece is formed as an abutting surface for clamping and limiting with the abutting portion, and the extension piece extends from the side adjacent to the main body of the abutting surface.

[0006] In a preferred embodiment, the part of the main body adjacent to the clasp continues to extend to form an extension portion, the extension portion is arranged in parallel with and spaced from the extension piece, and the extension portion and the extension piece are deformed under a second external force to release the clamping of the clasp on the abutting portion.

[0007] In a preferred embodiment, the abutting portion has a side end surface, and the pre-positioning member further comprises a support arm protruding from the outer surface of the main body, the support arm being in contact with the side end surface to further limit the pre-positioning member.

[0008] In a preferred embodiment, the pre-positioning member further comprises an open slot, and the main body of the pre-positioning member is in contact with the open slot to further limit the pre-positioning member.

[0009] In a preferred embodiment, the deforming member comprises an upper leaf and a lower leaf protruding inwardly from different heights of the inner surface of the main body.

[0010] In a preferred embodiment, the upper leaf and the lower leaf each comprise a plurality of discrete deformable leaves staggered distributed to facilitate the fastener to fall down under the first external force.

[0011] In a preferred embodiment, the pre-assembly further comprises a lead screw located outside the main body of the pre-positioning member.

[0012] In a preferred embodiment, the pre-positioning member is a plastic member.

[0013] In a preferred embodiment, the pre-assembly further comprises a lower rail, the abutting portion is an abutting plate, the fastener is a vehicle body bolt, and the head portion is a bolt head.

[0014] The pre-assembly with a pre-installed fastener according to the present application is modularly designed with the fastener being clamped in the pre-positioning member, such as a bolt and a slide rail being shipped together, so that the client does not need to separately equip the fastener, and the installation time of the client is greatly shortened. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a whole sectional view of a pre-assembly with a pre-installed fastener according to a preferred embodiment of the present application.

[0016] Fig. 2 is a structural schematic view of the pre-positioning member of Fig. 1.

[0017] Fig. 3 shows the clamping of the pre-positioning member of Fig. 2 and a lower rail in xy direction.

[0018] Fig. 4 is a sectional view of the pre-positioning member of Fig. 2.

[0019] Fig. 5 is a top view of the pre-positioning member of Fig. 2.

[0020] Fig. 6 shows the completed state of the pre-assembly with a pre-installed fastener similar to Fig. 1.

[0021] Fig. 7 shows the pre-positioning member of another embodiment similar to Fig. 5.

[0022] Fig. 8 shows the pre-positioning member of yet another embodiment similar to Fig. 5.

[0023] Figure 9 shows the installation process of the pre-assembled assembly with fasteners similar to figure 6.

[0024] Figure 10 shows the installation process of the slide rail car body bolt at the customer site according to prior art. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application will be described in detail below with reference to the drawings.

[0026] As shown in figure 1, the pre-assembled assembly with fasteners according to a preferred embodiment of the present application is a slide rail assembly, which comprises a pre-positioning member 1, a lower rail 2 and fasteners 3, wherein the pre-positioning member 1 is clamped in the lower rail 2 and the fasteners 3 are clamped in the pre-positioning member 1. In this embodiment, the fasteners 3 are car body bolts.

[0027] As shown in figure 2, the pre-positioning member 1 comprises a main body 11 and a clasp 12, wherein the main body 11 is a cylindrical tube and the clasp 12 extends radially outward and upward from the outer surface of the main body 11. The cylindrical shape of the main body 11 is only an example and not a limitation, other circumferentially closed shapes such as square tube can also be used here. The clasp 12 is shown as extending obliquely in the figure, which is only an example and not a limitation. In this embodiment, the part of the wall of the main body 11 adjacent to the clasp 12 continues to extend upward to form an extension 111. The clasp 12 comprises a spring piece 121 and an extension piece 122, wherein the spring piece 121 extends obliquely from the outer surface of the main body 11, the free end of the spring piece 121 is formed as an abutting surface 121a, and the extension piece 122 extends upward from the side of the abutting surface 121a adjacent to the main body 11. The abutting surface 121a is substantially perpendicular to the extension direction of the spring piece 121. In this embodiment, the abutting surface 121a and the extension direction of the spring piece 121 form an included angle of about 80°. It should be understood that this angle is only an example and not a limitation, and an included angle of 70°-100° is preferred. The extension piece 122 is arranged substantially parallel to and spaced apart from the extension 111.

[0028] As shown in figure 1, the lower rail 2 comprises a horizontal abutting portion 21, which is shown as an abutting plate in the figure. It should be understood that the abutting portion 21 directly defines the opening of the lower rail 2. The clasp 12 of the pre-positioning member 1 is clamped on the abutting portion 21, so that the pre-positioning member 1 is limited in the z direction, ensuring that the pre-positioning member 1 will not fall out during transportation.

[0029] The installation and clamping process of the buckle 12 of the pre-positioning member 1 on the lower rail 2 is briefly described below. During the process of clamping the pre-positioning member 1 into the lower rail 2, the elastic sheet 121 and the abutting portion 21 start to contact, and as the pre-positioning member 1 is pressed downward, the buckle 12 also goes down, the elastic sheet 121 is pressed and shrinks inward under the action of the abutting portion 21, until the abutting surface 121a is completely placed below the abutting portion 21, the buckle 12 rebounds, the abutting surface 121a clamps the abutting portion 21, so that the pre-positioning member 1 cannot move up and down.

[0030] Returning to FIG. 2, the pre-positioning member 1 further includes two support arms 13, which respectively extend radially outward and horizontally from the outer surface of the main body 11 on both sides of the buckle 12. As shown in FIG. 3, the abutting portion 21 has a straightly extending side end surface 211, the support arms 13 of the pre-positioning member 1 are in contact with the side end surface 211, and the lower rail 2 further includes a circular arc-shaped open groove 22, the main body 11 of the pre-positioning member 1 is in contact with the open groove 22, so that the pre-positioning member 1 is limited in the x direction and the y direction. The shapes of the side end surface 211 of the lower rail 2 and the open groove 22 are only examples of the shape of the opening of the lower rail and are not limited, and the corresponding profile of the pre-positioning member 1 is also only an example and is not limited, as long as the interface between the pre-positioning member 1 and the lower rail 2 satisfies the mutual clamping and limiting.

[0031] As shown in FIG. 4, the pre-positioning member 1 further includes upper and lower blades 14 and 15 as deformation members, which respectively extend radially inward from different heights of the main body 11, for clamping the head 31 of the fastener 3 (see FIG. 1). In this embodiment, the head 31 is a bolt head. As shown in FIG. 5, the upper and lower blades 14 and 15 are staggered. The staggered upper and lower blades 14 and 15 can avoid the installation path of the fastener 3, allowing the fastener 3 to fall smoothly under the action of the tightening force, and the upper and lower blades 14 and 15 are deformed under the action of the tightening force and cannot support the head 31, so that the fastener 3 is tightened downward, as shown in FIG. 6. When the fastener 3 is tightened to the lower rail 2, the extension 111 and the extension sheet 122 are pressed, the buckle 12 is shrunk inward, and the pre-positioning member 1 can be pinched out of the lower rail 2. In this embodiment, the upper and lower blades 14 and 15 each include three blades. The number of blades here is only an example and is not limited. In this embodiment, the blades of the upper and lower blades 14 and 15 are each semicircular. The semicircular shape of the blades here is only an example and is not limited, for example, the long strip waist circle shape of FIG. 7 or the triangular shape of FIG. 8 can be used, as long as the head 31 can be clamped. It should be understood that the double-layer blade design of the upper and lower blades 14 and 15 here is only an example of the deformation member and is not limited, and in fact, single-layer blades, single / double-layer elastic sheets / flanges / bumps, etc. can also be used.

[0032] The pre-positioning piece 1 can effectively protect the lead screw 4 from being scratched by the operator when installing the fastener 3. As shown in FIG. 9, the main body 11 of the pre-positioning piece 1 can effectively isolate the fastener 3 and the lead screw 4, avoiding the installation tool from being tilted during rotation, causing the installation tool or the fastener 3 to touch the lead screw 4.

[0033] The present application is directly shipped in the form of a slide rail assembly, i.e. the pre-positioning piece 1 with the fastener 3 is pre-installed in the lower rail 2. The installation at the customer end includes: after the plastic decorative strip covering the pre-positioning piece 1 is pushed away along the arrow A, the fastener 3 is tightened so that the fastener 3 is attached to the pre-positioning piece 1 and the lower rail 2 under the action of the tightening force, and finally the pre-positioning piece 1 is removed. In this process, there is no need to put the bolt into the body hole and screw in several threads, greatly shortening the time and labor cost.

[0034] The present application is directly shipped in the form of a slide rail assembly, which can reduce the installation cost at the customer end, and the steps of taking the bolt and positioning the bolt at the customer end are transferred to the upstream, so that the slide rail supplier can install the body bolt 3 in the pre-positioning piece 1 in batches, and then the pre-positioning piece 1 is clamped into the lower rail 2, so that the body bolt 3 can be shipped at the installation position. This way of shipping the slide rail with the bolt makes the slide rail end uniform in the body bolt 3, without the need to design different body bolt holes, and the customer end does not need to be equipped with bolts, simplifying the customer's parts list.

[0035] The pre-positioning piece 1 of the present application is a plastic part, which is molded by common plastic molding process, and has low cost. The pre-positioning piece 1 can be applied to various slide rails, as long as the lower rail 2 can be designed to install the positioning features of the pre-positioning piece 1. The present application is not only suitable for the installation of the slide rail body bolt, but also can be applied to other types of applications that need to be shipped with bolts, pre-installed bolts or have positioning fastener requirements.

[0036] The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. The above-described embodiments of the present application can be variously changed. Any simple, equivalent changes and modifications made in accordance with the content of the claims and the description of the present application fall within the scope of protection of the present application. The present application does not describe all the details.

Claims

1. A pre-assembled assembly with pre-installed fasteners, characterized in that, The pre-assembled assembly includes a pre-positioning component and a fastener that is engaged in the pre-positioning component. The pre-positioning component includes a body, a snap-fit, and a deformable component. The snap-fit ​​extends from the outer surface of the body. The part to be installed includes an abutment portion that engages with the snap-fit. The pre-positioning component is positioned on the part to be installed by snap-fit. The deformable component of the pre-positioning component extends inward from the inner surface of the body to hold the head of the fastener. The deformable component deforms under a first external force, causing the fastener to disengage.

2. The pre-assembled assembly according to claim 1, characterized in that, The buckle includes a spring and an extension piece, wherein the spring extends obliquely from the outer surface of the body, the free end face of the spring is formed as an abutment surface for engaging and limiting the abutment portion, and the extension piece extends from the abutment surface to the side of the body adjacent to the body.

3. The pre-assembled assembly according to claim 2, characterized in that, The wall surface of the main body adjacent to the buckle continues to extend to form an extension. The extension is parallel to and spaced apart from the extension piece. The extension and the extension piece deform under the second external force to release the buckle from the abutment.

4. The pre-assembled assembly according to claim 1, characterized in that, The abutting part has a side end face, and the prepositioning member also includes a support arm extending from the outer surface of the main body. The support arm contacts and engages with the side end face to further limit the prepositioning member.

5. The pre-assembled assembly according to claim 1, characterized in that, The component to be installed also includes an opening groove, and the body of the prepositioning component makes a contoured contact with the opening groove to further limit the prepositioning component.

6. The pre-assembled assembly according to claim 1, characterized in that, The deformable components include upper and lower blades that extend inward from different heights on the inner surface of the main body.

7. The pre-assembled assembly according to claim 6, characterized in that, The upper and lower blades each include multiple discrete deformable blades that are staggered to allow the fastener to fall smoothly under the first external force.

8. The pre-assembled assembly according to claim 1, characterized in that, The pre-assembled assembly also includes a lead screw located outside the body of the pre-positioning component.

9. The pre-assembled assembly according to claim 1, characterized in that, The pre-positioning component is made of plastic.

10. The pre-assembled assembly according to claim 1, characterized in that, The component to be installed is the lower rail, the abutting part is the abutting plate, the fastener is the body bolt, and the head is the bolt head.

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