CN212073816U - Practice thrift assembly space's car seat front wing skeleton assembly with pivot of moulding plastics - Google Patents

Abstract

The utility model provides a use a practice thrift pivot of moulding plastics for assembly of car seat front wing skeleton in assembly space. The injection molding rotating shaft comprises a rotating shaft and a shaft sleeve, an opening is formed in the shaft sleeve along the axial direction of the rotating shaft, an injection molding panel which is bent upwards or downwards once or bent twice continuously is arranged on the edge of the opening face on one side of the shaft sleeve, the injection molding panel is bent in the area outside the side face of the shaft sleeve, and the bending angle of each time is larger than 0 degree and smaller than or equal to 90 degrees; the injection molding panel is characterized in that one or two or more injection molding slotted holes are formed in the bending area of the injection molding panel, the injection molding slotted holes are distributed along the bending direction of the injection molding panel, and one or two or more injection molding holes are formed in the injection molding panel. The utility model discloses axle simple structure does not occupy the space of other structures in the injection molding to can be connected closely with the injection molding, be difficult for droing, can realize just, the reversal moment of torsion is different and the same, and joint strength and rigidity are all guaranteed, have reduced manufacturing cost.

Description

Practice thrift assembly space's car seat front wing skeleton assembly with pivot of moulding plastics

Technical Field

The utility model relates to a car headrest accessory specifically is a practice thrift pivot of moulding plastics for assembly of car seat front wing skeleton in assembly space.

Background

In the car seat accessory, the headrest skeleton is mainly used for the support to the head, in order to make the person of taking more comfortable to can sleep at the trip in-process comfortablely, the sleep headrest has appeared in the market, and its sleep headrest is mainly through improving preceding wing skeleton, makes the preceding wing of headrest can turn up and control the adjustment, can give the effectual support of passenger's head, and can provide perfect sleep for the passenger and experience. However, the existing connecting component of the front wing framework usually adopts a foreign imported hinge, the friction plate group adopted in the hinge is generally formed by stacking a plurality of circular friction plates, meanwhile, an extension strip is embedded in the shell of the hinge on the outer side of each annular friction plate to prevent the friction plates from rotating, the friction plate group and the main shaft are in surface contact, although the friction force generated by a surface contact lock is very large, the friction force is not beneficial to adding lubricating oil, the rotating shaft is required to rotate continuously after the rotating shaft is installed, the lubricating oil can be filled between the whole rotating shaft and the friction plate group, the imported hinge is not only very time-consuming in production and assembly, but also is expensive.

Except adopting import hinged joint, some producers also can adopt ordinary damping pivot, be equipped with a plastic sheath or metal covering in the outside, during the installation, put into the mould with the damping pivot, install on the headrest fixed part through the plastic sheath, the end of its main shaft corresponds headrest rotating part hookup location, later form the headrest skeleton through injection molding machine injection moulding, whole headrest skeleton integrated into one piece, wherein the end of main shaft is lived in headrest rotating part hookup location parcel, avoid it to drop, but this connected mode is more complicated, the cost is higher.

Patent number 201920380728X discloses a pivot of moulding plastics for assembly of automobile seat front wing skeleton, and the axle sleeve of this pivot is equipped with the panel of moulding plastics of a horizontal extension, can put into injection mold with this pivot when the assembly and mould plastics together, and its panel of moulding plastics just imbeds in the skeleton of moulding plastics after the completion of moulding plastics, can with skeleton zonulae occludens, is difficult for droing, realizes just, the reaction torque is different and the same. Because the injection molding panel of the rotating shaft extends horizontally, if the middle injection molding part needs to be arranged for other structural time horizontally, no space is available for the injection molding panel of the shaft sleeve to extend horizontally, and the injection molding rotating shaft cannot be normally installed.

In the lower drawing, if the middle plastic part is arranged in the Y direction (transversely) due to other structures, no space is provided for the shaft sleeve sheet metal part to transversely extend, the shaft sleeve sheet metal part is upwards extended according to the plastic structure so as to ensure that the sheet metal embedded plastic part has certain size and space for ensuring the fixed strength of the rotating shaft and the plastic part.

Disclosure of Invention

The utility model discloses not enough according to prior art provides a practice thrift pivot of moulding plastics for assembly of car seat front wing skeleton in assembly space, should mould plastics the pivot and can solve and arrange other structures to needs because of the injection molding level, and do not have the space to let the panel level of moulding plastics extend and lead to the problem of the unable installation of pivot of moulding plastics, and do not need construction bolt and other accessories during this pivot assembly, can mould plastics with the skeleton of moulding plastics an organic whole to can with the skeleton zonulae occludens of moulding plastics, ensure its joint strength.

In order to solve the above problem, the utility model provides a technical scheme does: the utility model provides a practice thrift pivot of moulding plastics for assembly of car seat front wing skeleton in assembly space, including pivot and the axle sleeve of setting in pivot central point, be equipped with assembly portion at the both ends of pivot, the axle sleeve is equipped with opening, its characterized in that along the axial of pivot: the edge of an opening face at one side of the shaft sleeve is provided with an injection molding panel which is bent upwards or downwards once or bent twice continuously or more than twice, the injection molding panel is bent at the area outside the side face of the shaft sleeve, the bending angle of each time is more than 0 degree and less than or equal to 90 degrees, and the bent injection molding panel does not exceed a connecting line of the shaft sleeve and the injection molding panel; the injection molding panel is also provided with one or two or more injection molding slotted holes, the injection molding slotted holes are distributed along the bending direction of the injection molding panel, and the injection molding panel is also provided with one or two or more injection molding holes.

The utility model discloses better technical scheme: the injection molding panel is bent for one time to form a bending plate with an L-shaped or arc-shaped cross section, and the injection molding panel is bent for two times or more to form a bending plate with a concave-convex or saw-tooth or wave-shaped cross section; the injection molding slotted hole is a strip-shaped slotted hole, the opening direction of the injection molding slotted hole is consistent with the bending direction of the injection molding panel, and the wall surface of the injection molding slotted hole is provided with a wavy or zigzag concave-convex surface.

The utility model discloses better technical scheme: when two or more than two injection molding holes are formed, the injection molding holes are uniformly distributed in the unbent area and the bent area of the injection molding panel, the injection molding holes are circular, elliptical, polygonal or quincunx through holes, and the hole walls of the injection molding holes are provided with wavy or zigzag concave-convex surfaces.

The utility model discloses further technical scheme: the shaft sleeve is provided with or not provided with an annular gap, when the shaft sleeve is provided with the annular gap, the annular gap is arranged in the central part of the shaft sleeve and divides the shaft sleeve into two parts, openings on the shaft sleeve of the two parts are arranged on the same side or the opposite side of the injection molding panel, a clamp spring is arranged or not arranged at the position of the annular gap, and the torque between the shaft sleeve and the rotating shaft is 0-10 Nm.

The utility model discloses better technical scheme: the injection molding panel is a square, circular, elliptic, triangular or polygonal horizontal plate body in an unfolded state, the length of the injection molding panel is 1-10 times of the diameter of the shaft sleeve, and a plurality of injection molding grooves are distributed on the surface of the injection molding panel; the injection molding grooves are circular, square, oval, polygonal or irregular grooves, and the injection molding grooves are uniformly distributed on the inner surface and the outer surface of the injection molding panel.

The utility model discloses better technical scheme: an inner convex plane is arranged on the inner side surface of the opening edge of the side, not provided with the injection molding panel, of the shaft sleeve, and the inner convex plane is an inner convex surface formed by bending the opening edge of the shaft sleeve inwards in an inclined manner; the part of the rotating shaft corresponding to the inner convex plane is provided with a cutting plane matched with the rotating shaft, the cutting plane is an inclined plane formed by longitudinally cutting an arc-shaped surface of the rotating shaft, and the cutting depth is 1-20% of the diameter length of the rotating part of the rotating shaft; when the inner convex plane on the shaft sleeve rotates to the cutting plane, the two planes are mutually clamped and limited.

The utility model discloses better technical scheme: the diameter of the middle part of the rotating shaft, which is overlapped with the shaft sleeve, is larger than that of the assembling parts at the two ends, and strip-shaped groove-shaped twisting flowers are uniformly arranged on the surfaces of the assembling parts at the two ends.

The utility model discloses better technical scheme: the injection molding panel and the injection molding part are provided with injection molding holes or injection molding slotted holes at the overlapped parts of other structures.

The utility model discloses better technical scheme: the shapes and sizes of a plurality of concave parts and convex parts of the concave-convex hole walls of the same injection molding slot hole and the same injection molding hole are the same, the radius R of a fillet formed by any one of the concave parts or the convex parts is 0-10 mm, and the included angle b between two adjacent concave-convex inclined planes is larger than 0 degrees and smaller than or equal to 165 degrees.

The utility model discloses better technical scheme: when the annular gap is provided with the clamp spring, an annular clamping groove or two annular clamping grooves with the same width as the clamp spring is formed in the annular gap; the thickness of the clamp spring is greater than the depth of the annular clamping groove on the rotating shaft and less than the sum of the thicknesses of the annular clamping groove and the shaft sleeve; when the annular clamping groove and the annular gap which are formed in the rotating shaft are equal in width, the width of the annular clamping groove and the width of the annular gap are the width of one or more clamp springs, the one or more clamp springs are correspondingly arranged at the annular gap of the shaft sleeve, and the inner side edge of the one or more clamp springs is embedded into the annular clamping groove in the rotating shaft; when two annular clamping grooves with the same width as the clamp springs are formed in the rotating shaft, the two annular clamping grooves are formed in the positions close to the edges of the two sides of the annular notch respectively, the two clamp springs are correspondingly installed on the two sides of the annular notch of the shaft sleeve, and the inner edges of the two clamp springs are embedded into the two annular clamping grooves respectively.

The utility model has the advantages that:

(1) the injection molding panel of the utility model is bent upwards, the bending angle and the bending times can be determined according to the structural distribution in the injection molding piece, the injection molding piece can adapt to the structure, the space slotting of other parts is not occupied, and the installation space is saved;

(2) the utility model discloses set up the bar injection hole in the bending region of the panel of moulding plastics, and set up a plurality of injection holes of different shapes such as quincunx, circular, oval, bar, multilateral type in other regions of the panel of moulding plastics, the injection molding material can fill up bar injection hole and injection hole of other shapes in the course of moulding plastics, guarantee its bending region and better connection of injection molding in the course of moulding plastics, and increased the upper and lower position joint strength of axle sleeve plastic panel opening;

(3) the strip-shaped injection molding holes on the injection molding panel and the hole walls of the injection molding holes with other shapes are all arranged into wave-shaped concave-convex shapes or saw-toothed shapes, so that the injection molding panel can be fully combined with a plastic part, and after the slotted holes are formed, the injection molding part can not have obvious gaps between all directions and the metal injection molding panel due to shrinkage after the injection molding is finished, can limit all directions, can not move, and ensures the connection tightness;

(4) the opening is arranged at the same side of the shaft sleeve of the injection molding rotating shaft, so that the difference of forward torque and reverse torque is realized, the notch is arranged or not arranged at the central position of the shaft sleeve, if the torque is required to be increased, the notch can be reduced or not arranged, if the torque is required to be reduced, the notch can be increased, the snap spring can be added according to the requirement when the notch is arranged, but the notch and the snap spring are both arranged in the middle of the shaft sleeve, so that the axial direction of the shaft sleeve is ensured not to fall off;

(5) the utility model discloses set up the recess of a plurality of different shapes on the surface of panel of moulding plastics, increased with the frictional force of dress bundle of working of plastics, make the assembly inseparabler, be difficult for droing.

The utility model discloses axle simple structure, the axle sleeve is connected stably with the pivot, can change along with the structural distribution of injection molding, do not occupy the space of other structures in the injection molding, convenient assembly, and need not use bolt and other auxiliary assembly during the assembly, can directly install on injection mold and mould plastics with injection molding is integrative, and can be connected closely with the injection molding, be difficult for droing, can realize just, the reversal moment of torsion is different and the same, joint strength and rigidity are all guaranteed, manufacturing cost is reduced.

Drawings

Fig. 1 and 2 are schematic structural views of the rotating shaft sleeve of the present invention without an annular notch;

FIG. 3 is a schematic structural view of the rotating shaft sleeve of the present invention with an annular gap;

FIG. 4 is a schematic view of the structure of FIG. 1;

FIG. 5 is a schematic view of the structure in the direction B of FIG. 1;

FIG. 6 is a schematic view of the structure of FIG. 1 in the direction C;

FIGS. 7-10 are schematic views of different bent states of the injection-molded panel;

FIG. 11 is a schematic view of the structure of the middle shaft of the present invention;

FIG. 12 is a schematic structural view of the present invention with a circlip in the annular gap;

fig. 13 is a usage state diagram of the present invention.

In the figure: the novel structure comprises a rotating shaft, a mounting portion, a shaft sleeve, an inner convex plane, an opening, an injection molding panel, a 400 injection molding groove, an injection molding groove hole, a 5 injection molding groove hole, a 6 injection molding hole, a 7 annular gap, a 8 clamp spring, a 9 front wing framework body, a 10 left side wing framework and a 11 right side wing framework.

Detailed Description

The present invention will be further explained with reference to the drawings and examples. Embodiments are particularly shown in fig. 1-13, and thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The embodiment provides an injection molding rotating shaft for assembling a front wing framework of an automobile seat, which saves an assembling space, and as shown in fig. 1 to 10, the injection molding rotating shaft comprises a rotating shaft 1 and shaft sleeves 2 arranged at the central position of the rotating shaft, assembling parts 100 are arranged at two ends of the rotating shaft 1, the diameter of the middle part of the rotating shaft 1, which is overlapped with the shaft sleeves 2, is larger than that of the assembling parts 1-1 at the two ends, and strip-shaped groove-shaped knurling is uniformly arranged on the surfaces of the assembling parts 1-1 at the two ends. The axial of axle sleeve 2 along pivot 1 is equipped with opening 3, is equipped with the panel 4 of moulding plastics of upwards or bending once or bending twice more continuously in one side opening face edge in axle sleeve 2 wherein, the panel 4 of moulding plastics is bent in the region outside axle sleeve 2 side, and the angle of bending each time is greater than 0 and is less than or equal to 90, and the panel 4 of moulding plastics after bending is no longer than the connecting line of axle sleeve 2 and panel 4 of moulding plastics, and the panel 4 of moulding plastics is embedded in the injection molding in the assembly process, and pivot 1 and axle sleeve 2 part are arranged outside the injection molding. The panel 4 that moulds plastics expandes the state for square horizontal plate body, and the width equals with the width of axle sleeve 2, or is longer than the axle sleeve width, or is shorter than the axle sleeve width, and whole length is 2 ~ 8 times of axle sleeve 2 diameter, can confirm the length of plate body according to the needs of buckling, ensures joint strength.

In order to ensure that the injection molding panel 4 in a bent state can be tightly connected with an injection molding part, in the embodiment, the injection molding rotating shaft for assembling the front wing framework of the automobile seat, which saves the assembling space, is provided, as shown in fig. 1 to 10, two or more injection molding slotted holes 5 are formed in the bending area of the injection molding panel 4, the injection molding slotted holes 5 are strip-shaped slotted holes, the opening direction of the injection molding slotted holes 5 is consistent with the bending direction of the injection molding panel 4, and the wall surface of each injection molding slotted hole 5 is provided with a wavy concave-convex surface. The injection molding panel 4 is also provided with more than two injection molding holes 6, the injection molding holes 6 in the embodiment are quincunx through holes, and can also be circular, oval, polygonal or quincunx through holes, and then the hole walls form wavy concave-convex surfaces. A plurality of injection molding grooves 400 are distributed on the surface of the injection molding panel 4; the injection molding grooves 400 are circular, square, elliptical, polygonal or irregular grooves, and the injection molding grooves 400 are uniformly distributed on the inner and outer surfaces of the injection molding panel 4. As shown in FIG. 4, the shapes and sizes of a plurality of concave parts and convex parts of the wavy concave-convex surface hole walls of the same injection molding slot hole 5 and the same injection molding hole 6 are the same, the fillet radius R formed by any one concave part or any one convex part is 3mm, and the included angle b between two adjacent concave-convex inclined surfaces is larger than 60.

In the embodiment of the utility model, the shaft sleeve 2 is not provided with the annular gap with the largest torque; in order to reduce the torque of the rotating shaft, as shown in fig. 3, an annular notch 7 is arranged on the shaft sleeve 2, the annular notch 7 is arranged in the central part of the shaft sleeve and divides the shaft sleeve 2 into two parts, and the openings 3 on the two parts of the shaft sleeve divided by the annular notch 7 can be arranged on the same side of the injection molding panel 4, so that the forward and reverse torques can be different, or can be arranged on different sides, and the forward and reverse torques can be the same. When the annular gap is small, a clamp spring does not need to be arranged; if the annular gap is large, a clamp spring can be arranged at the annular gap, specifically, an annular clamping groove with the same width as the annular gap 7 or two annular clamping grooves with the same width as the clamp spring 8 are arranged at the position of the rotating shaft 1 corresponding to the annular gap 7; when the annular clamping groove formed in the rotating shaft 1 is as wide as the annular gap 7, the annular clamping groove and the annular gap 7 are as wide as one or more clamp springs 8, the one or more clamp springs 8 are correspondingly arranged at the annular gap 7 of the shaft sleeve 2, and the inner side edge of the one or more clamp springs 8 is embedded into the annular clamping groove formed in the rotating shaft 1; when two annular clamping grooves with the same width as the clamp springs 8 are formed in the rotating shaft 1, as shown in fig. 11, the two annular clamping grooves are formed in the positions close to the edges of the two sides of the annular gap 7 respectively, the two clamp springs 8 are correspondingly installed on the two sides of the annular gap of the shaft sleeve 2, and the inner edges of the two clamp grooves are embedded into the two annular clamping grooves respectively. The thickness of the clamp spring 8 is larger than the depth of the annular clamping groove in the rotating shaft and smaller than the sum of the thicknesses of the annular clamping groove and the shaft sleeve 2.

In the injection molding rotating shaft for assembling the front wing framework of the automobile seat, which saves the assembling space, an inner convex plane 200 may be provided on the inner side surface of the opening edge of the shaft sleeve 2 on the side where the injection molding panel 4 is not provided, as shown in fig. 6 and 11, the inner convex plane 200 is an inner convex plane formed by bending the opening edge of the shaft sleeve 2 obliquely inwards; a cutting plane 101 matched with the rotating shaft 1 is arranged at the part of the rotating shaft 1 corresponding to the inner convex plane 200, the cutting plane 101 is an inclined plane formed by longitudinally cutting an arc-shaped surface of the rotating shaft 1, and the cutting depth is 1-20% of the diameter length of the rotating part of the rotating shaft 1; when the inner convex plane 200 on the shaft sleeve 2 rotates to the cutting plane 101, the two planes are mutually clamped and limited. Most products are not provided with the inner convex plane 200 and the cutting plane 101, and only special products are provided.

The bending state of the present invention will be further explained with reference to the drawings of different embodiments.

In the first embodiment, as shown in fig. 1, the injection molded panel 4 is bent upward to form a bent plate with an L-shaped cross section, the bent angle a is 90 degrees, and the injection molded panel 4 is perpendicular to the shaft housing 2 after bending.

In the injection molding rotating shaft provided by the second embodiment, as shown in fig. 2, the injection molding panel 4 is bent upward once to form a bending plate with an arc-shaped cross section, the bending angle a is about 45 °, and a curved arc is formed between the injection molding panel 4 and the shaft sleeve 2 after bending.

In the third embodiment, as shown in fig. 3, the injection molded panel 4 is bent downward to form a bent plate with an L-shaped cross section, the bent angle a is 90 degrees, and the injection molded panel 4 and the shaft housing 2 are in a downward vertical state after bending.

In the injection molding rotating shaft provided in the fourth embodiment, as shown in fig. 8, the injection molding panel 4 is bent three times, first bent vertically upwards by 90 °, then bent horizontally, and then bent vertically downwards by 90 °, so as to form a concave-convex bending plate.

In the fifth embodiment, as shown in fig. 8, the injection molded panel 4 is bent twice, and is bent vertically and upwardly for the first time by 90 °, and then is bent horizontally to form a concave-type bent plate, and if the horizontal portion of the concave-type bent plate extends toward the direction of the rotation shaft, the edge of the concave-type bent plate does not exceed the connecting line between the shaft sleeve 2 and the injection molded panel 4.

In the sixth embodiment, as shown in fig. 9, the injection molded panel 4 is bent in a wave shape for a plurality of times, and the angle of each bending is smaller than 90 °, so as to form a bending plate with a wave-shaped cross section.

In addition to the above embodiments, the injection-molded panel 4 can be bent at will according to the structural distribution of the injection-molded part, and in the area where the injection-molded panel collides with the structure on the injection-molded part, the injection-molded hole 6 or the injection-molded slot 5 is formed, so that the area can be left free, and the assembly of other structures is prevented from being influenced.

The utility model discloses during the use, directly install it on headrest skeleton injection mold, two pivots of moulding plastics of every headrest skeleton injection mold installation, the mounted position of two pivots of moulding plastics is the same with the mounted position of pivot on the current injection mold, as shown in fig. 13, two installed pivots of moulding plastics, the pivot cover position of moulding plastics of flank skeleton is arranged in to its pivot part, it is connected the position with left and right side wing skeleton 10, 11 that the corresponding front wing skeleton body 9 both sides of arranging in of panel 4 that moulds plastics, after left and right side pivot installation of moulding plastics targets in place, alright mould plastics with adopting three rifle head of moulding plastics simultaneously and moulding plastics front wing skeleton body 9 and left and right side wing skeleton 10, 11 triplex, after the completion of moulding plastics, left and right side wing skeleton 10, 11 arrange the position of the pivot tip of the pivot of moulding plastics respectively and form a pivot injection molding cover, and through this pivot injection molding cover will mould plastics, The right wing frameworks 10 and 11 are connected into a whole, and the connection strength of the rotating shaft 1 can be improved due to the fact that the rotating part is provided with the rubbing; when the front wing framework body 9 is injection-molded, the injection-molded panel 9 is directly wrapped inside the front wing framework body 9, the bending angle and the bending state of the injection-molded panel 4 are matched with the structural distribution of the front wing framework body 9, the distribution of other structures on the front wing framework body 9 is not influenced, the connection strength between the injection-molded rotating shaft and the front wing framework body 9 can be ensured, and the plastic passes through the injection holes 6 and the injection slots 5 on the injection-molded panel 4 and the injection grooves 400 on the surface of the injection-molded panel, so that the connection between the injection-molded panel and the front wing framework body 9 is firmer, after the integral injection molding is completed, the front wing framework body 9 and the left and right wing frameworks 10 and 11 are connected into a whole through the injection-molded rotating shaft, the headrest can be adjusted left and right through the rotating shaft, and the matching concave-convex surfaces are arranged at the sleeving part of the rotating shaft 1 and the shaft sleeve 2, so, can temporarily block when the optimal state is adjusted, and remind a user that the optimal angle is adjusted.

The utility model discloses a pivot of moulding plastics also can pour into lubricating oil into in the clearance between axle sleeve 2 and pivot 1 as required before the installation.

The above description is only for the purpose of illustrating a few embodiments of the present invention, and the description is specific and detailed, but not intended to limit the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a practice thrift pivot of moulding plastics for assembly of car seat front wing skeleton in assembly space, includes pivot (1) and sets up axle sleeve (2) at pivot central point position, is equipped with assembly portion (1-1) at the both ends of pivot (1), axle sleeve (2) are equipped with opening (3), its characterized in that along the axial of pivot (1): the edge of an opening face at one side of the shaft sleeve (2) is provided with an injection molding panel (4) which is bent upwards or downwards once or bent twice continuously or more than twice continuously, the injection molding panel (4) is bent at the area outside the side face of the shaft sleeve (2), the bending angle of each time is more than 0 degree and less than or equal to 90 degrees, and the bent injection molding panel (4) does not exceed the connecting line of the shaft sleeve (2) and the injection molding panel (4); one or two or more than two injection molding slotted holes (5) are formed in the bending area of the injection molding panel (4), the injection molding slotted holes (5) are distributed along the bending direction of the injection molding panel (4), and one or two or more than two injection molding holes (6) are formed in the injection molding panel (4).

2. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 1, is characterized in that: the injection molding panel (4) is bent once to form a bending plate with an L-shaped or arc-shaped cross section, and the injection molding panel (4) is bent twice or more to form a bending plate with a concave-convex or saw-tooth or wave-shaped cross section; the injection molding slotted hole (5) is a strip-shaped slotted hole, the opening direction of the injection molding slotted hole is consistent with the bending direction of the injection molding panel (4), and the wall surface of the injection molding slotted hole (5) is provided with a wavy or zigzag concave-convex surface.

3. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 1, is characterized in that: when two or more than two injection molding holes (6) are arranged, the injection molding holes are uniformly distributed in the unbent area and the bent area of the injection molding panel (4), the injection molding holes (6) are circular, elliptic, polygonal or quincunx through holes, and the hole walls of the injection molding holes (6) are arranged into wavy or zigzag concave-convex surfaces.

4. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 1, the 2 or the 3, characterized in that: be equipped with or not be equipped with annular breach (7) on axle sleeve (2), when having seted up annular breach (7) on axle sleeve (2), annular breach (7) set up the central part at the axle sleeve to separate into two parts with axle sleeve (2), and opening (3) on the axle sleeve of two parts are placed in and are moulded plastics panel (4) homonymy or contralateral, are equipped with or not be equipped with jump ring (8) in the position of annular breach (7), the moment of torsion between axle sleeve (2) and pivot (1) is 0-10 Nm.

5. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 1, the 2 or the 3, characterized in that: the injection molding panel (4) is a square, circular, elliptic, triangular or polygonal horizontal plate body in an unfolded state, the length of the injection molding panel is 1-10 times of the diameter of the shaft sleeve (2), and a plurality of injection molding grooves (400) are distributed on the surface of the injection molding panel (4); the injection molding grooves (400) are circular, square, oval, polygonal or irregular grooves, and the injection molding grooves (400) are uniformly distributed on the inner surface and the outer surface of the injection molding panel (4).

6. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 1, the 2 or the 3, characterized in that: an inner convex plane (200) is arranged on the inner side surface of the opening edge of the side, which is not provided with the injection panel (4), of the shaft sleeve (2), and the inner convex plane (200) is an inner convex surface formed by bending the opening edge of the shaft sleeve (2) inwards in an inclined way; a cutting plane (101) matched with the rotating shaft (1) is arranged at the part of the rotating shaft (1) corresponding to the inner convex plane (200), the cutting plane (101) is an inclined plane formed by longitudinally cutting an arc-shaped surface of the rotating shaft (1), and the cutting depth is 1-20% of the diameter length of the rotating part of the rotating shaft (1); when the inner convex plane (200) on the shaft sleeve (2) rotates to the cutting plane (101), the two planes are mutually clamped and limited.

7. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 1, the 2 or the 3, characterized in that: the diameter of the overlapped part of the middle of the rotating shaft (1) and the shaft sleeve (2) is larger than that of the assembling parts at the two ends, and strip-shaped groove-shaped twisting patterns are uniformly arranged on the surfaces of the assembling parts at the two ends.

8. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 1 or 2, characterized in that: the injection molding panel (4) and the injection molding part are provided with injection molding holes (6) or injection molding slotted holes (5) at the overlapped parts of other structures.

9. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 2 or 3, characterized in that: the shapes and sizes of a plurality of concave parts and convex parts of the concave-convex hole walls of the same injection molding slotted hole (5) and the same injection molding hole (6) are the same, the radius R of a fillet formed by any one of the concave parts or the convex parts is 0-10 mm, and the included angle b between two adjacent concave-convex inclined planes is larger than 0 degrees and smaller than or equal to 165 degrees.

10. The injection molding rotating shaft for assembling the front wing framework of the automobile seat capable of saving the assembling space according to the claim 4, is characterized in that: when the annular gap (7) is provided with the clamp spring, an annular clamping groove with the same width as the annular gap (7) or two annular clamping grooves with the same width as the clamp spring (8) are formed in the annular gap (7); the thickness of the clamp spring (8) is greater than the depth of the annular clamping groove in the rotating shaft and less than the sum of the thicknesses of the annular clamping groove and the shaft sleeve (2); when the annular clamping groove and the annular gap (7) which are formed in the rotating shaft (1) are equal in width, the width of the annular clamping groove and the width of the annular gap (7) are the width of one or more clamp springs (8), the one or more clamp springs (8) are correspondingly arranged at the annular gap (7) of the shaft sleeve (2), and the inner side edge of the one or more clamp springs is embedded into the annular clamping groove in the rotating shaft (1); when two annular clamping grooves with the same width as the clamp springs (8) are formed in the rotating shaft (1), the two annular clamping grooves are formed in the positions close to the edges of the two sides of the annular notch (7) respectively, the two clamp springs (8) are arranged and correspondingly installed on the two sides of the annular notch of the shaft sleeve (2), and the inner edges of the two clamp grooves are embedded into the two annular clamping grooves respectively.

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