CN210563949U

CN210563949U - Armrest box hinge mechanism for vehicle and armrest box thereof

Info

Publication number: CN210563949U
Application number: CN201921108533.6U
Authority: CN
Inventors: 汤震宇
Original assignee: Jiangyin Enroyuan Metal Products Co Ltd
Current assignee: Jiangyin Jiangnan Kaiser Molding Co., Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-05-19
Anticipated expiration: 2029-07-15

Abstract

The utility model relates to a handrail box hinge mechanism for vehicle and handrail box thereof, wherein the hinge mechanism comprises an elbow pillow mounting rack and a handrail box mounting rack, the elbow pillow mounting rack and the handrail box mounting rack are hinged together through a damping rotating shaft part and a torsional spring rotating shaft part, the damping rotating shaft part is positioned at the hinged side of the elbow pillow mounting rack and the handrail box mounting rack, and the torsional spring rotating shaft part is positioned at the hinged other side of the elbow pillow mounting rack and the handrail box mounting rack; the elbow pillow mounting bracket can wind damping pivot part reaches the axis of torsional spring pivot part is relative handrail case mounting bracket rotates. Through setting up damping pivot part torsional spring pivot part, both mutually support, when making the elbow pillow open, can be earlier by a small-angle of bounce, expose the terminal surface, then further control the tip of elbow pillow by the passenger again, realize opening of arbitrary angle.

Description

Armrest box hinge mechanism for vehicle and armrest box thereof

Technical Field

The utility model relates to a hinge mechanism, especially be used in the hinge mechanism at the position that the hand pillow of vehicle handrail case opened and shut to and contain the vehicle handrail case of this hinge mechanism.

Background

The handrail case is the accessory that present vehicle generally equipped with, and its installation is fixed in the middle of two seats of main driver's cabin, provides a storing space, installs an elbow pillow simultaneously in storing space's top, is as storing space's apron promptly, drives the in-process for a long time for vehicle driver again, provides one and places the elbow and carry out the structure of relaxing.

The elbow pillow is as the apron, and its mode of opening divide into and rotate to open or slide and open, but adopts more mode at present and open for rotating, and the elbow pillow is articulated through a hinge mechanism and fixes in one side of handrail case promptly, and operating personnel opens the elbow pillow through lifting one side of elbow pillow, exposes the storing space of below, carries out taking or depositing of article.

The hinge mechanism for the armrest box elbow pillow looks like a conventional and mature mechanism, but with the continuous progress of vehicle technology and the development of vehicle interior design, the hinge mechanism for the armrest box for the vehicle is also improved so as to meet more complex market requirements. For example, the hinge mechanism of the automobile armrest box capable of hovering disclosed in chinese patent publication No. CN208830851U, the friction type hinge hovering structure and the armrest box hinge disclosed in chinese patent publication No. CN208416239U, and the automobile armrest box structure capable of hovering at will disclosed in chinese patent publication No. CN208915078U all adopt damping mechanisms to enable the elbow pillow armrest box cover to hover at any position after being opened. The hinge unit of the armrest box for the vehicle with Chinese patent publication No. CN107914649A is characterized in that a spring is added in the hinge mechanism, and the opening speed of the elbow pillow armrest box cover is adjusted through the spring, so that better customer use experience is provided.

The elbow pillow armrest box cover hinge mechanisms disclosed in the existing market all need to unlock the end part of the elbow pillow armrest box cover, then the hand stretches into the end part of the elbow pillow armrest box cover, holds one end of the elbow pillow and then lifts up to open. However, with the development of vehicle interior technology, a central armrest area in a flat state appears in vehicle design, and the upper surface of the elbow pillow of the armrest box is flush with a central operating area (such as an electronic handbrake, a gear knob and other control panels) in a closed state, i.e. a normal state. This results in no space between the elbow rest and the central operating area for the hand to reach in, and the elbow rest needs to be able to automatically spring up after the elbow rest is unlocked. The conventional unlocked toggle pillow bouncing mechanism adopts a torsion spring mechanism; when the elbow pillow is covered, the torsion spring stores energy, and when the elbow pillow is unlocked, the torsion spring is directly released, so that the elbow pillow is directly opened in place; this bounce opening mode, because opening angle is great, and the torsional spring energy storage is great promptly, needs great power to push down it when closing, and during the unblock, the bounce power is also very big, causes unexpected injury to the passenger easily, and it is fast to bounce opening speed, causes the elbow pillow hinge mechanism to become flexible easily, damages even.

Aiming at the armrest box structure with the elbow pillow being level, according to the use habits of passengers and in combination with the safety requirement, the elbow pillow needs to be bounced by a certain angle (20-30 degrees) after being unlocked, and a space for holding the armrest is exposed; then the passenger continues to operate, the elbow pillow is opened, the armrest box is further opened, and articles are taken and placed in the armrest box; in view of the use requirements, it is necessary to improve the connecting mechanism of the elbow pillow and the armrest box, and particularly, the hinge mechanism for installing the elbow pillow is improved so as to meet the use requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handrail case the hinge mechanism for vehicle and handrail case thereof to can provide certain angle bounce-force to the elbow pillow in the hope, open the in-process at subsequent elbow pillow simultaneously and provide damping frictional force again, make the elbow pillow can arbitrary angle stop.

The utility model discloses a first aspect provides a handrail case hinge mechanism for vehicle, including elbow pillow mounting bracket, handrail case mounting bracket, its characterized in that, elbow pillow mounting bracket with handrail case mounting bracket passes through damping pivot part, reaches torsional spring pivot part and articulates together, damping pivot part is located elbow pillow mounting bracket with the articulated one side of handrail case mounting bracket, torsional spring pivot part is located the articulated opposite side of elbow pillow mounting bracket with handrail case mounting bracket;

the axis of rotation of damping pivot part with the axis of rotation of torsional spring pivot part coincides mutually, the elbow rest mounting bracket can wind damping pivot part reaches the axis of torsional spring pivot part is relative handrail case mounting bracket rotates.

As a further improvement of the utility model, the elbow pillow mounting rack comprises an elbow pillow mounting plane and a first hinged panel; the first hinged panel is vertically arranged on two sides of the elbow pillow mounting plane; the first hinge panel on one side is provided with a mounting hole of the damping rotating shaft part, namely a damping rotating shaft mounting hole; the first hinge panel on the other side is provided with a mounting hole of the torsion spring rotating shaft component, namely a torsion spring rotating shaft mounting hole;

the handrail box mounting frame comprises a handrail box mounting plane and a second hinged panel; the second hinged panels are vertically arranged on two sides of the mounting plane of the armrest box; the second hinged panel on one side is provided with a mounting hole of the damping rotating shaft part, namely a damping rotating shaft through-shaft hole; the second hinged panel on the other side is provided with a mounting hole of the torsion spring rotating shaft part, namely the torsion spring rotating shaft passes through the shaft hole;

the damping rotating shaft part comprises a damping shaft, a disc reed, a limiting convex chuck and a limiting concave chuck; the damping shaft penetrates through the disc spring plate, penetrates through the damping rotating shaft through shaft hole and is fixed on the inner side of the second hinged panel; a limiting convex chuck and a limiting concave chuck are arranged between the second hinged panel and the first hinged panel; the limiting convex chuck body is fixed on the outer side of the second hinge panel, and the limiting concave chuck body is fixed on the inner side of the first hinge panel; the damping shaft penetrates through the first hinged panel and is riveted to form a damping shaft riveting head;

the limiting bulge chuck body is in a ring shape, the middle of the limiting bulge chuck body is provided with a hole penetrating through the damping shaft, one side of the limiting bulge chuck body is a bulge ring surface, a pressing bulge is arranged on the limiting bulge chuck body, and the included angle of two sides of the pressing bulge relative to the center of the bulge ring surface is alpha;

the limiting groove chuck body is also in a ring shape, the middle of the limiting groove chuck body is also provided with a hole penetrating through the damping shaft, one side of the limiting groove chuck body is a groove ring surface, a yielding groove is arranged on the groove ring surface, and the included angle of the two sides of the yielding groove relative to the center of the groove ring surface is β;

β>α；90°>α>0°；

the limiting groove chuck can rotate around the damping shaft relative to the limiting protrusion chuck, and then the ring surface formed by the abdicating groove and the groove ring surface moves relative to the position of the pressing protrusion; when the abdicating groove is coincided with the pressing bulge, the distance between the limiting groove chuck and the limiting bulge chuck is relatively small, and the compression amount of the disc reed is small, namely the elasticity is small; when the groove ring surface is coincided with the pressing bulge, the spacing between the limiting groove chuck and the limiting bulge chuck is relatively larger, and the compression amount of the disc reed is larger, namely the elasticity is larger;

the torsion spring rotating shaft component comprises a torsion spring pin shaft and a torsion spring; the torsion spring is sleeved outside the torsion spring pin shaft, and one end of the torsion spring is fixed on the torsion spring pin shaft; the other end of the torsion spring pin shaft penetrates through a torsion spring rotating shaft through-shaft hole in the second hinged panel and a torsion spring rotating shaft mounting hole in the first hinged panel, and the tail end of the torsion spring pin shaft is fixed on the first hinged panel; the other end of the torsion spring is fixed on the second hinged panel.

As a further improvement of the present invention, a first positioning slot is provided on the first hinge panel on the side where the damping rotating shaft component is located; a second positioning clamping groove is also formed in the second hinge panel on one side of the damping rotating shaft component;

the outer edge of the limiting convex chuck is provided with a first positioning jaw, and the outer edge of the limiting concave chuck is provided with a second positioning jaw; the first positioning clamping jaw is clamped and fixed in the second positioning clamping groove, and the second positioning clamping jaw is clamped and fixed in the first positioning clamping groove.

The number of the first positioning clamping grooves is 2, and the first positioning clamping grooves are symmetrically arranged on two sides of the damping rotating shaft mounting hole; the number of the second positioning clamping jaws is 2, and the second positioning clamping jaws are respectively clamped and fixed in the 2 first positioning clamping grooves;

the number of the second positioning clamping grooves is 2, and the second positioning clamping grooves are symmetrically arranged on two sides of the damping rotating shaft through shaft hole; the first positioning clamping jaws are clamped and arranged at 2 positions, and are respectively clamped and fixed in the 2 second positioning clamping grooves.

As a further improvement of the utility model, 2 compression bulges are arranged and are respectively and symmetrically positioned at two sides of the bulge ring surface; the abdication groove is provided with 2, and the symmetry is located respectively the both sides of recess anchor ring face.

preferably, β - α is 5 ° to 60 ° and α is 10 ° to 30 °.

Preferably, the two sides of the pressing protrusion are provided with chamfers, and the two sides of the yielding groove are also provided with chamfers.

As a further improvement of the utility model, torsional spring pivot part place one side be equipped with second positioning groove on the articulated panel of second, the one end of torsional spring is equipped with fixed gib head, fixed gib head is fixed in the second positioning groove.

Furthermore, one end of the torsion spring pin shaft is provided with a torsion spring fixing flat body, one end of the torsion spring is twisted and flattened to form a torsion spring flat sleeve, and the torsion spring flat sleeve is sleeved on the torsion spring fixing flat body;

the other end of the torsion spring hinge pin is provided with a hinge pin fixing flat body, a torsion spring rotating shaft mounting hole in the first hinged panel is a flat hole matched with the torsion spring rotating shaft mounting hole, and the hinge pin fixing flat body is fixedly inserted into the torsion spring rotating shaft mounting hole; and riveting and punching the tail end of the pin shaft fixing flat body of the torsion spring pin shaft to form a torsion spring pin shaft riveting head.

Furthermore, a limit stop is arranged at the outer edge of the second hinged panel, and a first limit block and a second limit block are arranged at the outer edge of the first hinged panel; the limit stop is positioned between the first limit block and the second limit block.

Preferably, the outer side of the limit stop is wrapped with a rubber sleeve.

Furthermore, a first nylon gasket and a first nylon bushing are arranged on two sides of the disc reed, the first nylon bushing is provided with a first shaft sleeve, and the first shaft sleeve is arranged between the damping shaft and the damping rotating shaft through shaft hole; the torsional spring pivot both sides of crossing the shaft hole of torsional spring pivot part place one side the articulated panel of second are equipped with second nylon bush, second nylon gasket, second nylon bush is equipped with the secondary shaft cover, the secondary shaft cover sets up the torsional spring round pin axle with the torsional spring pivot crosses between the shaft hole.

The utility model provides a handrail box, which comprises a box body and an elbow pillow, and is characterized in that the box body is connected with the elbow pillow through the handrail box hinge mechanism for the vehicle; the handrail box mounting frame is fixed on the box body through a fastener; the elbow pillow mounting rack is fixed on the elbow pillow through a fastener.

When the utility model is used, when the elbow pillow is closed, the elbow pillow mounting plane is basically in a horizontal state, at the moment, the pressing bulge of the damping rotating shaft part is positioned in the abdicating groove and positioned at one side of the abdicating groove; meanwhile, the torsion spring is twisted and compressed; in this state, the open end of the elbow pillow needs to be fixed by the locking member. When the locking piece releases, the torsional spring is released, drives first articulated panel rotates, finally drives the elbow pillow mounting bracket upwards bounces together with the elbow pillow.

when the elbow pillow is bounced by a distance, the pressing protrusion rotates in the abdicating groove at the moment, and turns to the other side from one side of the abdicating groove, at the moment, the pressing protrusion rotates by a beta- α angle, and because the torsion spring is released by rotating by a certain angle, the torsion spring is reduced, and under the action of the bouncing force of the elbow pillow, the pressing protrusion is slightly pressed into the chamfered surface of the abdicating groove, the disc spring leaf is further compressed, so that the friction force between the protruding ring surface and the groove ring surface is increased, and the elbow pillow is stopped after being bounced by about the beta- α angle.

After the elbow pillow is bounced, a passenger holds the end face of the elbow pillow by a handle, then breaks the elbow pillow to further rotate, at the moment, the pressing protrusion slides onto the annular surface of the groove, the disc spring sheet is fully compressed to provide large elastic force, the friction force between the pressing protrusion and the annular surface of the groove is greatly improved, and large enough damping friction force is generated; when the hands of the passenger are removed, the elbow pillow can stay at any angle under the action of the damping friction force.

The utility model discloses handrail case the hinge mechanism for vehicle, through setting up damping pivot part torsional spring pivot part, both mutually support, when making the elbow pillow open, can be earlier by a low-angle of bounce, expose the terminal surface, then further control the tip of elbow pillow by the passenger, realize opening of arbitrary angle.

The hinge mechanism of the armrest box for the vehicle has the innovation points that the elasticity of a disc reed is adjusted by adjusting the distance between two planes of the limiting convex chuck and the limiting concave chuck, so as to adjust the friction force between each part, in particular the friction force between the limiting convex chuck and the limiting concave chuck, thereby realizing that the friction force torque and the elbow pillow gravity torque are smaller than the torsional spring compression torque in a specific angle, and realizing automatic bouncing; besides, the friction torque is larger than the torsion of the torsion spring and the gravity torque of the elbow pillow, so that the elbow pillow can stay at any angle.

Compared with the prior art, the utility model has the following advantage:

(1) the elastic force can be provided on the same hinge mechanism in the initial stage, and the damping friction force can be provided in the later stage;

(2) the hinge mechanism has simple integral structure, realizes damping friction force and torsional elasticity respectively, and is easy to assemble; (3) the improved hinge mechanism has the advantages that the hinge mechanism is improved on the basis of the existing hinge mechanism, the universality of parts is high, the manufacturing cost is reduced, and the later maintenance cost is reduced.

Drawings

Fig. 1 is a schematic view 1 of the overall structure of the hinge mechanism of the armrest box for a vehicle according to the present invention in an assembled state;

FIG. 2 is a schematic view of the overall structure of the hinge mechanism of the armrest box for a vehicle according to the present invention in an assembled state 2;

FIG. 3 is an exploded view of the hinge mechanism of the armrest box for a vehicle according to the present invention, schematically illustrated in FIG. 1;

FIG. 4 is an exploded view of the components of the hinge mechanism of the armrest box for a vehicle according to the present invention, as shown in FIG. 2;

FIG. 5 is a schematic view of the assembly of the damping shaft component of the hinge mechanism of the present invention, schematically shown in FIG. 1;

FIG. 6 is a schematic view of the assembly of the damping shaft component of the hinge mechanism of the present invention, as shown in FIG. 2;

FIG. 7 is a schematic view of the structure of a limiting convex chuck of the hinge mechanism of the present invention;

FIG. 8 is a schematic view of the structure of a limiting groove chuck of the hinge mechanism of the present invention;

fig. 9 is a schematic structural view of the assembly of the limiting protrusion chuck and the limiting groove chuck of the present invention in a loose state;

fig. 10 is a schematic structural view of the limiting protrusion chuck and limiting groove chuck assembly of the present invention in a compressed state;

fig. 11 is a front view of the assembly of the limiting protrusion chuck and the limiting groove chuck of the present invention in a loose state;

fig. 12 is a front view of the limiting protrusion chuck and limiting groove chuck assembly of the present invention in a compressed state;

FIG. 13 is a cross-sectional view showing the variation of the damping shaft of the hinge mechanism of the present invention;

FIG. 14 is a schematic view of the variation process of the disc spring of the present invention;

FIG. 15 is an exploded view of the torsion spring shaft assembly of the present invention;

FIG. 16 is a schematic view of the assembled state of the components of the torsion spring shaft of the present invention;

fig. 17 is an assembled cross-sectional view of the components of the torsion spring rotating shaft component of the present invention;

FIG. 18 is a schematic structural view of the armrest box of the present invention;

reference numerals: the elbow pillow comprises an elbow pillow mounting rack 1, an armrest box mounting rack 2, a damping rotating shaft component 3 and a torsion spring rotating shaft component 4; a box body 5 and an elbow pillow 6;

the elbow pillow mounting plane 11, the elbow pillow fixing hole 111 and the elbow pillow positioning hole 112;

the first hinge panel 12, a damping rotating shaft mounting hole 121, a torsion spring rotating shaft mounting hole 122, a first positioning clamping groove 123, a first limiting block 124 and a second limiting block 125;

a handrail box mounting plane 21, handrail box fixing holes 211 and handrail box positioning holes 212;

the second hinged panel 22, the damping rotating shaft through-shaft hole 221, the torsion spring rotating shaft through-shaft hole 222, the second positioning clamping groove 223 and the limit stop 224;

the damping shaft 31, the disc spring 32, the first nylon gasket 33, the first nylon bush 34, the limiting protrusion chuck 35 and the limiting groove chuck 36;

a cap 311, a thick shaft 312, a thin shaft 313 and a damping shaft rivet 314;

a first annular shim face 341, a first bushing 342;

the device comprises a convex ring surface 351, a pressing convex 352 and a first positioning claw 353; a groove ring surface 361, a yielding groove 362 and a second positioning claw 363;

a torsion spring pin shaft 41, a torsion spring 42, a second nylon bushing 43 and a second nylon gasket 44;

a torsion spring storage body 411, a torsion spring fixing flat body 412, a pin shaft fixing flat body 413 and a torsion spring pin shaft riveting head 414;

a torsion spring cylindrical part 421, a torsion spring flat sleeve 422 and a fixed hook 423.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the armrest box hinge mechanism for vehicle of the present invention is an overall structure schematic diagram of the assembled state of the armrest box hinge mechanism for vehicle, and the armrest box hinge mechanism for vehicle of the present invention is mainly composed of 4 large components, including an elbow pillow mounting bracket 1, an armrest box mounting bracket 2, a damping rotating shaft component 3, and a torsion spring rotating shaft component 4; the elbow pillow mounting rack 1 and the armrest box mounting rack 2 are hinged together through the damping rotating shaft part 3 and the torsion spring rotating shaft part 4; the axis of rotation of damping pivot part 3 with the axis of rotation of torsional spring pivot part 4 coincides mutually, makes elbow pillow mounting bracket 1 can wind damping pivot part 3, and the axis of torsional spring pivot part 4 is relative handrail case mounting bracket 2 rotates.

As shown in fig. 3 and 4, the exploded view of the parts of the armrest box hinge mechanism for vehicle according to the present invention is shown in fig. 3 and 4, and the detailed conditions of the parts of the armrest box hinge mechanism for vehicle according to the present invention are described with reference to fig. 3 and 4.

Elbow pillow mounting bracket 1, including an elbow pillow mounting plane 11, seted up a plurality of elbow pillow fixed orificess 111 on it, and elbow pillow locating hole 112, during the installation of elbow pillow, aim at the boss setting element earlier elbow pillow locating hole 112 inserts, then passes fastening screw in elbow pillow fixed orificess 111 twists the elbow pillow, fixes the elbow pillow on elbow pillow mounting plane 11. Symmetrical first hinged panels 12 are respectively vertically arranged on two sides of the elbow pillow mounting plane 11; the first hinged panel 12 is hook-shaped in view of the equipment running space; the first hinged panel 12 on one side is provided with a mounting hole of the damping rotating shaft component 3, namely a damping rotating shaft mounting hole 121; the first hinge panel 12 on the other side is provided with a mounting hole of the torsion spring rotating shaft part 4, namely a torsion spring rotating shaft mounting hole 122; the damping rotating shaft mounting hole 121 and the torsion spring rotating shaft mounting hole 122 are located at the tail end of the first hinged panel 12; a first positioning clamping groove 123 is further formed in the first hinge panel 12 along the damping rotating shaft mounting hole 121, and preferably, 2 first positioning clamping grooves 123 are symmetrically formed in two sides of the damping rotating shaft mounting hole 121; further, a first stopper 124 and a second stopper 125 are further disposed on the outer edge of the first hinged panel 12.

The handrail box mounting frame 2 comprises a handrail box mounting plane 21, a plurality of handrail box fixing holes 211 and handrail box positioning holes 212 are formed in the handrail box mounting plane; when installing on the handrail case, will handrail case mounting panel 2 will earlier handrail case mounting plane 21 will handrail case locating hole 212 aims at the setting element on the handrail case and inserts, then passes fastening screw handrail case fixed orifices 211 twists into in the handrail case, realizes fixedly. Two symmetrical second hinged panels 22 are respectively and vertically arranged on two sides of the armrest box mounting plane 21; the second hinged panel 22 on the 2 side is provided with mounting holes of the damping rotating shaft component 3 and the torsion spring rotating shaft component 4, namely a damping rotating shaft through-shaft hole 221 and a torsion spring rotating shaft through-shaft hole 222; second positioning clamping grooves 223 are further formed in the second hinge panel 22 on one side of the damping rotating shaft through-shaft hole 221, preferably, 2 second positioning clamping grooves 223 are symmetrically formed in two sides of the damping rotating shaft through-shaft hole 221; a second positioning clamping groove 223 is also formed in the second hinged panel 22 on one side of the torsion spring rotating shaft through-shaft hole 222; further, a limit stop 224 is further disposed at an outer edge of the second hinged panel 22, and preferably, a rubber sleeve is wrapped outside the limit stop 224.

The damping rotating shaft component 3 comprises a damping shaft 31, a disc spring 32, a first nylon gasket 33, a first nylon bushing 34, a limiting protrusion chuck 35 and a limiting groove chuck 36.

The torsion spring rotating shaft component 4, a torsion spring pin shaft 41, a torsion spring 42, a second nylon bushing 43 and a second nylon gasket 44.

The damping shaft part 3 is further described with reference to fig. 5 and 6. The damping shaft 31 comprises a cap head 311, a thick shaft body 312 and a thin shaft body 313; a first nylon gasket 33, a disc spring 32 and a first nylon bush 34 are sequentially sleeved on the damping shaft 31 in a penetrating manner; the first nylon bush 34 has a first annular gasket surface 341 and a first shaft sleeve 342, the first annular gasket surface 341 and the first nylon gasket 33 are clamped at two sides of the disc spring 32, the inner wall of the first shaft sleeve 342 is sleeved on the thick shaft body 312 of the damping shaft 31, and the outer wall of the first shaft sleeve 342 is sleeved in the damping shaft through-shaft hole 221; the damping shaft 31 is sleeved with a first nylon gasket 33, a disc spring 32 and a first nylon bush 34 and fixed on the inner side of the second hinged panel 22 of the handrail box mounting frame 2; the damping shaft 31 passes through the damping rotating shaft through-shaft hole 221 and extends to the outer side of the second hinged panel 22; a limiting convex chuck 35 and a limiting concave chuck 36 are sleeved on the outer damping shaft 31 of the second hinged panel 22, and then the damping shaft 31 penetrates through the damping rotating shaft mounting hole 121 of the elbow pillow mounting frame 1 and exceeds the outer side surface of the first hinged panel 12 of the elbow pillow mounting frame 1 to form a riveting part; the limiting protrusion chuck 35 is provided with a protruding first positioning claw 353, and the first positioning claw 353 is clamped in the second positioning clamping groove 223 of the second hinged panel 22, so that 2 preferable first positioning claws 353 are preferably arranged and are all clamped in 2 second positioning clamping grooves 223 of the second hinged panel 22; the limiting groove chuck 36 is also provided with a second protruding positioning claw 363, the second positioning claw 363 is clamped into the first positioning clamping groove 123 of the first hinged panel 12, and preferably, 2 second positioning claws 363 are provided; the limiting protrusion chuck 35 is in contact with the limiting groove chuck 36.

As an important improvement of the present invention, the structure of the limiting protrusion chuck 35 and the limiting groove chuck 36 is described with reference to fig. 7 to 12.

the limiting protrusion chuck 35 is structurally shown in fig. 7, a main body of the limiting protrusion chuck 35 is circular, a hole penetrating through the damping shaft 31 is formed in the middle of the limiting protrusion chuck, a protrusion ring surface 351 is formed in one side of the limiting protrusion chuck, pressing protrusions 352 are arranged on the protrusion ring surface 351, the pressing protrusions 352 are arranged in 2 numbers and are symmetrically located on two sides of the protrusion ring surface 351, an included angle formed by two sides of each pressing protrusion 352 relative to the center of the protrusion ring surface 351 is α, 2 protruding first positioning clamping jaws 353 are further arranged on the limiting protrusion chuck 35, and the first positioning clamping jaws 353 are located on the other side of the protrusion ring surface 351.

the structure of the limiting groove chuck 36 is shown in fig. 8, the main body of the limiting groove chuck 36 is also in a circular shape, the middle of the limiting groove chuck is also provided with a hole penetrating through the damping shaft 31, one side of the limiting groove chuck is provided with a groove ring surface 361, a yielding groove 362 is arranged on the

groove ring surface

361, 2 yielding grooves 362 are symmetrically arranged on two sides of the groove ring surface 361, an included angle between two sides of the yielding groove 362 and the center of the groove ring surface 361 is β, the limiting groove chuck 36 is further provided with 2 raised second positioning claws 363, and the second positioning claws 363 are arranged on the other side of the groove ring surface 361.

β>α；90°>α>0°。

As shown in fig. 9-12, the stop protrusion chuck 35 and the stop groove chuck 36 are in contact, resulting in 2 states, a relaxed state and a compressed state, respectively. In the relaxed state, the pressing protrusion 352 is located in the receding groove 362, and at this time, the plane of the protrusion ring surface 351 is in contact with the plane of the groove ring surface 361. The compression state is that the compression protrusion 352 is located outside the abdicating groove 362, at this time, the plane of the protrusion ring surface 351 is not in contact with the plane of the groove ring surface 361, and the compression protrusion 352 is located on the plane of the groove ring surface 361. The limiting protrusion chuck 35 and the limiting groove chuck 36 can be made of thin plates through stamping, the thin plates are made of steel plates with the thickness of delta being 1mm, the stamping height of the pressing protrusions 352 is 0.4-0.6mm, and the stamping depth of the abdicating grooves 362 is larger than or equal to epsilon. The spacing between the limiting protrusion chuck 35 and the two outer side surfaces of the limiting groove chuck 36 is changed from 2 delta to 2 delta + epsilon by relatively positioning the pressing protrusions 352 at different positions on the limiting groove chuck 36.

Fig. 13 is a cross-sectional view showing a variation process of the damping shaft member of the hinge mechanism of the present invention, and fig. 14 is a schematic view showing a variation process of the disc spring 32 of the present invention.

The disc spring 32 is initially disc-shaped, and has an overall thickness d1, as shown in fig. 14 (a).

After the damping rotating shaft components are installed in place on the first hinge panel 12 and the second hinge panel 22, the ends of the damping shaft 31 are riveted to form a damping shaft rivet 314, so that the gap between the damping shaft rivet 314 and the cap 311 is fixed, as shown in fig. 13 (a), the pressing protrusion 352 is located in the position groove 362 (as shown in fig. 9 and 11), at this time, the disc spring 32 is in a first compression state and is in a shallow disc shape, as shown in fig. 14(b), and the whole thickness is compressed to d 2.

The utility model discloses in the use of handrail case hinge mechanism for vehicle, the elbow pillow mounting bracket 1 is rotated, makes spacing protruding chuck 35 with the relative position of spacing recess chuck 36 changes, works as it moves to compress tightly protruding 352 on the recess anchor ring 361 (as shown in fig. 10, 12), as shown in fig. 13(b), the dish reed 32 is further compressed this moment, as shown in fig. 14(c), its whole thickness is compressed into d 3.

d2-d3≈ε。

When the disc spring 32 is at d2 thickness, it generates a certain elastic force to eliminate the gap between the whole damping spindle components and provides a certain pressure, so that a certain friction force is generated between the convex ring surface 351 and the concave ring surface 361, the friction force is equivalent to the damping force, and the torque around the axis of the damping spindle component 3 is T1. T1<2 Nm.

When the disc spring 32 is compressed from d2 to d3, it generates a large elastic force, pressing the pressing protrusion 352 tightly against the surface of the concave ring 361, so that a large frictional force is generated between the two, the torque around the axis of the damping rotating shaft member 3 is T2, thereby enabling the relative position of the first hinge panel 12 and the second hinge panel 22 to be locked by the frictional force, and finally generating a resistance frictional force between the toggle pillow mounting bracket 1 and the armrest box mounting bracket 2, so as to realize the locking at any angle. T2-5-7 Nm.

Preferably, the two sides of the pressing protrusion 352 are provided with chamfers, the two sides of the abdicating groove 362 are also provided with chamfers, so that the pressing protrusion 352 can enter and exit the abdicating groove 362 conveniently.

The key point of the utility model is that the elastic force of the disc spring 32 is adjusted by adjusting the distance between the two planes of the limiting convex chuck 35 and the limiting concave chuck 36, so as to adjust the friction force between each component, in particular to the friction force between the limiting convex chuck 35 and the limiting concave chuck 36, in the above embodiment, the adjustment of the distance is realized by adjusting the relative position between the pressing protrusion 352 and the abdicating concave groove 362; in the actual design, the distance can be adjusted by arranging other bosses or inclined plane mechanisms; in practical production, the pressing protrusion 352 and the abdicating groove 362 are punched on the circular metal sheet, which is relatively easy to implement, so only the structure will be described in detail in this embodiment.

The structure of the torsion spring shaft member 4 will be further described with reference to fig. 15 to 17. As shown in fig. 15, the torsion spring pin 41 includes a cylindrical torsion spring storage 411, on which a torsion spring cylindrical portion 421 of the torsion spring 42 is sleeved; one end of the torsion spring 42 is fixed on the torsion spring pin shaft 41, specifically, one end of the torsion spring pin shaft 41 is provided with a torsion spring fixing flat body 412, one end of the torsion spring 42 is twisted and flattened to form a torsion spring flat sleeve 422, and the torsion spring flat sleeve 422 is sleeved on the torsion spring fixing flat body 412, so that one end of the torsion spring 42 is fixed with the torsion spring pin shaft 41. The other end of the torsion spring pin 41 is provided with a pin fixing flat body 413, a second nylon bush 43 is sleeved on the pin fixing flat body, the second nylon bush passes through the torsion spring rotating shaft through-shaft hole 222 on the second hinged panel 22, then a second nylon gasket 44 is sleeved on the second nylon bush, the second nylon bush finally passes through the torsion spring rotating shaft mounting hole 122 on the first hinged panel 12, and riveting is carried out on the outer side of the torsion spring rotating shaft mounting hole 122 to form a torsion spring pin shaft rivet head 414; the other end of the torsion spring 42 is provided with a fixed hook 423 hooked into the second positioning slot 223 of the second hinged panel 22, so that the other end of the torsion spring 42 is fixed to the second hinged panel 22. Because the pin fixing flat body 413 of the torsion spring pin 41 is clamped in the torsion spring rotating shaft mounting hole 122, the flat surfaces are directly and tightly sleeved with each other, so that the end 422 of the torsion spring 42 and the first hinged panel 12 rotate synchronously. A torsional spring force is generated between the first hinge panel 12 and the second hinge panel 22 due to the torsion spring 42. The second nylon bush 43 is identical to the first nylon bush 34 in structure, and also includes a second annular gasket surface and a second shaft sleeve, wherein the second annular gasket surface is padded between the torsion spring storage body 411 and the second hinge panel 22, and the second shaft sleeve is sleeved between the pin shaft fixing flat body 413 and the torsion spring rotating shaft through-shaft hole 222.

Fig. 18 is a schematic structural view of the armrest box of the present invention, which includes a box body 5 and an elbow pillow 6, which are connected to each other by the hinge mechanism of the armrest box for vehicle; the handrail box mounting frame 2 fixes the handrail box mounting plane 21 on the box body 5 through a fastener; the elbow pillow mounting rack 1 fixes the elbow pillow mounting plane 11 on the elbow pillow 6 through a fastener.

When the elbow pillow 6 is closed, the elbow pillow installation plane 11 is basically in a horizontal state, and at the moment, the limit stop 224 is blocked by the first limit block 124; the pressing bulge 352 of the damping rotating shaft component 3 is positioned in the abdicating groove 362 and is positioned on one side of the abdicating groove 362; meanwhile, the torsion spring 42 is torsionally compressed, and the torque around the axis of the torsion spring rotating shaft part 4 is T3; the torque of the gravity of the elbow pillow 6 around the axis of the torsion spring rotating shaft part 4 is T4; t3> T4+ T1. In this state, the open end of the toggle pillow 6 needs to be fixed by a locking member. When the locking member is released, the torsion spring 42 is released, which drives the first hinged panel 12 to rotate, and finally drives the toggle pillow mounting bracket 1 and the toggle pillow 6 to bounce upward.

when the elbow pillow 6 is bounced by a distance, the pressing protrusion 352 rotates in the abdicating groove 362, and the elbow pillow rotates from one side of the abdicating groove 362 to the other side, and then the pressing protrusion 352 rotates by an angle of beta- α, because the torsion spring 42 is released after rotating by a certain angle, the torque is reduced, and the torque generated by the gravity of the elbow pillow 6 is also reduced, under the action of the bouncing force of the elbow pillow 6, the pressing protrusion 352 is slightly pressed into the chamfered surface of the abdicating groove 362, the disc spring plate 32 is further compressed, so that the friction force between the protrusion ring surface 351 and the groove ring surface 361 is increased, and the elbow pillow 6 stops after bouncing by an angle of beta- α.

After the elbow pillow 6 is bounced up, a passenger holds the end surface of the elbow pillow 6 by a handle, then breaks the elbow pillow 6 to further rotate, at the moment, the torsion spring 42 is further released, the torque is further reduced, and the torque generated by the gravity of the elbow pillow 6 is also reduced; the pressing protrusion 352 slides onto the groove ring surface 361, the torque is T2, and the elbow pillow 6 can be opened by overcoming T2 (the torque of a small amount of the torsion spring 42 and the gravity torque of the elbow pillow 6); when the hands of the passenger are removed, the elbow pillow 6 can stay at any angle under the action of the torque T2. Finally, the limit stopper 224 is blocked by the second limit block 125, so as to prevent the angle from being large and causing damage to the components.

The utility model discloses handrail case the hinge mechanism for vehicle, through setting up damping pivot part 3 torsional spring pivot part 4, both mutually support, when making elbow pillow 6 open, can be earlier by a low-angle of bounce, expose the terminal surface, then further control the tip of elbow pillow 6 by the passenger, realize opening of arbitrary angle.

preferably, the angle β - α is 5 ° to 60 °, α is 10 ° to 30 °, when the angle β - α is too small, the bounce space of the elbow pillow 6 is insufficient, and the finger of the passenger cannot sufficiently contact the end of the elbow pillow 6, and when the angle β - α is too large, the bounce space of the elbow pillow 6 is too large, on the one hand, the damping friction force is insufficient, the usable angle of the elbow pillow 6 at any angle after opening is insufficient, or the bounce of the elbow pillow 6 is automatically too high, which affects the safety of the passenger.

Through the torsion of reasonable regulation torsional spring 42, the elasticity of dish reed 32, and spacing protruding chuck 35 with spacing interval change size, the angle scope between two planes of spacing recess chuck 36 satisfy different design demands, the angle scope, the application of force size that can open and shut of the angle scope, dynamics of bouncing off of elbow pillow 6 promptly, and back end.

The utility model discloses handrail case the hinge mechanism for vehicle, wherein, first nylon gasket 33, first nylon bush 34, second nylon bush 43, second nylon gasket 44 set up between the metalwork, reduce the friction noise between the metalwork, improve passenger's use comfort.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. The armrest box hinge mechanism for the vehicle comprises an elbow pillow mounting frame and an armrest box mounting frame, and is characterized in that the elbow pillow mounting frame and the armrest box mounting frame are hinged together through a damping rotating shaft part and a torsional spring rotating shaft part, the damping rotating shaft part is positioned on one hinged side of the elbow pillow mounting frame and the armrest box mounting frame, and the torsional spring rotating shaft part is positioned on the other hinged side of the elbow pillow mounting frame and the armrest box mounting frame;

2. The console box hinge mechanism for vehicles as claimed in claim 1, wherein the toggle pillow mounting bracket comprises a toggle pillow mounting plane, a first hinge panel; the first hinged panel is vertically arranged on two sides of the elbow pillow mounting plane; the first hinge panel on one side is provided with a mounting hole of the damping rotating shaft part, namely a damping rotating shaft mounting hole; the first hinge panel on the other side is provided with a mounting hole of the torsion spring rotating shaft component, namely a torsion spring rotating shaft mounting hole;

β>α；90°>α>0°；

the limiting groove chuck can rotate around the damping shaft relative to the limiting protrusion chuck, and then the ring surface formed by the abdicating groove and the groove ring surface moves relative to the position of the pressing protrusion;

3. The armrest box hinge mechanism for vehicles as claimed in claim 2, wherein a first positioning notch is provided on the first hinge panel on the side where the damping rotary shaft member is located; a second positioning clamping groove is also formed in the second hinge panel on one side of the damping rotating shaft component;

4. The vehicle armrest box hinge mechanism according to claim 3, wherein 2 first positioning slots are symmetrically arranged on both sides of the damping rotating shaft mounting hole; the number of the second positioning clamping jaws is 2, and the second positioning clamping jaws are respectively clamped and fixed in the 2 first positioning clamping grooves;

5. The vehicle armrest box hinge mechanism according to claim 2, wherein the number of the pressing protrusions is 2, and the pressing protrusions are symmetrically arranged on two sides of the surface of the protrusion ring; the abdication groove is provided with 2, and the symmetry is located respectively the both sides of recess anchor ring face.

6. the hinge mechanism of armrest box for vehicle as claimed in claim 5, wherein β - α is 5 ° -60 °, α is 10 ° -30 °.

7. The vehicle armrest box hinge mechanism according to claim 2, wherein one end of the torsion spring pin is provided with a torsion spring fixing flat body, one end of the torsion spring is twisted and flattened to form a torsion spring flat sleeve, and the torsion spring flat sleeve is sleeved on the torsion spring fixing flat body;

8. The armrest box hinge mechanism for vehicles as claimed in claim 2, wherein the outer edge of the second hinged panel is provided with a limit stop, and the outer edge of the first hinged panel is provided with a first limit block and a second limit block; the limit stop is positioned between the first limit block and the second limit block.

9. The vehicle armrest box hinge mechanism according to claim 2, wherein a first nylon gasket and a first nylon bushing are arranged on two sides of the disc spring, the first nylon bushing is provided with a first shaft sleeve, and the first shaft sleeve is arranged between the damping shaft and the damping rotating shaft through-shaft hole; the torsional spring pivot both sides of crossing the shaft hole of torsional spring pivot part place one side the articulated panel of second are equipped with second nylon bush, second nylon gasket, second nylon bush is equipped with the secondary shaft cover, the secondary shaft cover sets up the torsional spring round pin axle with the torsional spring pivot crosses between the shaft hole.

10. The armrest box comprises a box body and an elbow pillow, and is characterized in that the box body and the elbow pillow are connected through the armrest box hinge mechanism for the vehicle according to any one of claims 1-9; the handrail box mounting frame is fixed on the box body through a fastener; the elbow pillow mounting rack is fixed on the elbow pillow through a fastener.