CN113325582B - Headband adjusting device and head-mounted equipment - Google Patents
Headband adjusting device and head-mounted equipment Download PDFInfo
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- CN113325582B CN113325582B CN202110480779.1A CN202110480779A CN113325582B CN 113325582 B CN113325582 B CN 113325582B CN 202110480779 A CN202110480779 A CN 202110480779A CN 113325582 B CN113325582 B CN 113325582B
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- headband
- adjusting gear
- shell
- knob
- circumferential
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a headband adjusting device and a head-wearing device; the headband adjusting device comprises a shell and a headband, wherein an adjusting gear is rotatably arranged in the shell; the rack part of the head band extends into the shell and is in meshed transmission with the adjusting gear; the device also comprises a knob, a toggle mechanism linked with the knob and a circumferential clasping brake mechanism used for applying brake torque to the adjusting gear; the knob is rotated, and the stirring mechanism forces the circumferential holding brake mechanism to release holding brake on the adjusting gear; and loosening the knob, resetting the circumferential holding brake mechanism and holding and braking the adjusting gear. The head-mounted equipment comprises the headband adjusting device. The invention does not generate large noise in the whole adjusting process.
Description
Technical Field
The invention belongs to the technical field of head-wearing equipment, and particularly relates to a noiseless headband adjusting device during adjustment and head-wearing equipment.
Background
In recent years, with the advancement of technology, Virtual Reality (VR) and Augmented Reality (AR) technologies are gradually accepted by users and markets, and become another engine for driving technological innovation and display technology innovation. In the prior art, VR and AR technologies are typically implemented on head-mounted devices.
At present, the wearing equipment generally adopts the ratchet structure (ratchet and pawl) and the adjustment gear (be connected with the ratchet) cooperation to carry out the bandage and adjust to the user wears and satisfies different head types user to wearing comfort level's demand. However, when the head strap is adjusted by adopting the ratchet structure, the meshing relationship between the pawl and the ratchet generates larger noise, which affects the experience of the user.
Disclosure of Invention
The invention aims to provide a headband adjusting device and a head-wearing device, aiming at overcoming the problem of high noise during adjustment in the prior art.
In order to solve the technical problems in the prior art, the embodiment of the invention provides a headband adjusting device, which comprises a shell and a headband, wherein an adjusting gear is rotatably arranged in the shell; the rack part of the head band extends into the shell and is in meshed transmission with the adjusting gear; the brake device also comprises a knob, a toggle mechanism linked with the knob and a circumferential clasping brake mechanism used for applying brake torque to the adjusting gear;
the knob is rotated, and the stirring mechanism forces the circumferential enclasping brake mechanism to release enclasping brake on the adjusting gear; and loosening the knob, resetting the circumferential enclasping brake mechanism and enclasping and braking the adjusting gear.
Preferably, the circumferential enclasping brake mechanism comprises an elastic enclasping ring sleeved outside the installation shaft part of the adjusting gear, and an opening is arranged on the elastic enclasping ring.
Preferably, a plurality of friction plates are circumferentially arranged on the inner wall of the elastic holding ring at intervals; the friction plate is made of rubber materials.
Preferably, the toggle mechanism comprises a connecting rod and a toggle block; the shifting block is rotatably arranged on the shell corresponding to the opening and is used for opening the elastic holding ring to release the holding brake of the adjusting gear; one end of the connecting rod is hinged with the knob, and the other end of the connecting rod is hinged with the shifting block.
Preferably, the shifting block is of an S-shaped structure, and a pivot mounting hole is formed in the center of the shifting block; and a pivot matched with the pivot mounting hole is arranged on the shell corresponding to the opening.
Preferably, the housing comprises a front housing and a rear housing fixedly connected; the mounting shaft part is rotatably mounted on the rear shell and extends out of the rear shell, and the tooth part of the adjusting gear is positioned in a cavity enclosed by the front shell and the rear shell; the poking mechanism and the circumferential enclasping brake mechanism are arranged on the rear side part of the rear shell.
Preferably, be equipped with first installation on the procapsid and dodge the hole, be equipped with on the adjusting gear axial link up and with the hole is dodged in the corresponding second installation of hole to first installation.
Preferably, the knob comprises a body, a central shaft is arranged on the body, and a plurality of axially extending elastic clamping hooks are circumferentially arranged at intervals at the end part of the central shaft; the elastic clamping hook sequentially penetrates through the second installation avoiding hole and the first installation avoiding hole, and the hook part of the elastic clamping hook is connected with the front side part of the front shell in a low mode; the body is provided with a hinged shaft used for being connected with the toggle mechanism.
Preferably, be equipped with on the body a plurality ofly be used for right the braking mechanism is held tightly to circumference carries out the spacing stopper of axial, and is a plurality of stopper circumference distributes the periphery of installation axle.
The embodiment of the invention also provides head-wearing equipment which comprises the headband adjusting device.
Due to the adoption of the technical scheme, the beneficial effects are as follows:
the headband adjusting device comprises a shell and a headband, wherein an adjusting gear is rotatably arranged in the shell; the rack part of the head band extends into the shell and is in meshed transmission with the adjusting gear; the brake device further comprises a knob, a toggle mechanism linked with the knob and a circumferential clasping brake mechanism used for applying brake torque to the adjusting gear. The head-mounted equipment comprises the headband adjusting device. The knob is rotated, the circumferential holding brake mechanism is forced by the toggle mechanism to release the holding brake of the adjusting gear, and the headband is adjusted; and when the knob is loosened, the circumferential holding brake mechanism resets and holds and brakes the adjusting gear, so that the locking after adjustment is realized.
In summary, compared with the ratchet structure in the prior art, the headband adjusting device of the present invention does not generate a loud noise in the whole adjusting process.
Drawings
FIG. 1 is an exploded view of the headband adjustment assembly of the present invention;
FIG. 2 is a schematic view of the mounting structure of the circumferential hugging brake mechanism and the toggle mechanism of FIG. 1;
FIG. 3 is a schematic view of the mounting structure of the circumferential hug brake mechanism, the toggle mechanism and the rear housing of FIG. 1;
FIG. 4 is an enlarged view of the construction of the circumferential hug brake mechanism and the toggle mechanism of FIG. 1;
FIG. 5 is a schematic view of the installation structure of the circumferential clasping brake mechanism, the toggle mechanism and the knob in FIG. 1
FIG. 6 is a schematic view of the knob of FIG. 5;
FIG. 7 is a schematic view of a mounting structure of the knob and the front case of FIG. 1
FIG. 8 is a cross-sectional view of the headband adjustment assembly of the present invention;
in the figure: 1-front housing, 11-first mounting relief hole, 2-rear housing, 21-support base, 22-pivot, 3-adjustment gear, 31-mounting shaft portion, 32-tooth portion, 33-second mounting relief hole, 4-rack portion, 5-knob, 51-body, 52-central shaft, 53-elastic hook, 531-elastic arm, 532-hook portion, 533-arc guide surface, 54-hinge shaft, 55-stopper, 6-toggle mechanism, 61-link, 62-toggle block, 621-pivot mounting hole, 7-circumferential clasping brake mechanism, 71-elastic clasping ring, 711-opening, 72-friction plate, 8-screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments of the present invention are merely for convenience of description and are not to be construed as limiting the present invention.
When the head-wearing equipment is worn normally, the head band adjusting device is positioned behind the head of a human body; to facilitate understanding of the solution, the side of the headband adjustment device away from the human head is defined as the back side, and the side adjacent to the human head is defined as the front side.
As shown collectively in fig. 1 to 5, the present embodiment discloses a headband adjusting device; comprises a shell and a head band, wherein an adjusting gear 3 is rotatably arranged in the shell; the rack part 4 of the headband extends into the shell and is meshed with the adjusting gear 3 for transmission. In some embodiments, the headband comprises a left headband and a right headband, and the rack portion 4 of the left headband and the rack portion 4 of the right headband are respectively positioned at the upper and lower sides of the adjusting gear 3; in other embodiments, the head band is an integrated head band, two rack parts 4 are arranged at two ends of the head band, and the two rack parts 4 are also respectively positioned at the upper side and the lower side of the adjusting gear 3; when the headband is pushed and pulled to adjust, the two rack parts 4 move back to back or relatively, and the moving rack parts 4 rotate the adjusting gear 3 due to the meshing relationship.
In order to realize noiseless adjustment of the headband and locking of any position after adjustment, the headband adjusting device in the embodiment further comprises a knob 5, a toggle mechanism 6 linked with the knob 5 and a circumferential clasping brake mechanism 7 for applying brake torque to the adjusting gear 3; the knob 5 is rotated, the toggle mechanism 6 forces the circumferential enclasping brake mechanism 7 to release enclasping brake on the adjusting gear 3, and the headband is freely drawn and pulled to be adjusted on the premise of not loosening the knob 5; when the knob 5 is loosened, the circumferential holding brake mechanism 7 resets and holds and brakes the adjusting gear 3, and the adjusting gear 3 cannot rotate during braking, so that the rack part 4 which is meshed with the adjusting gear cannot move, and the locking of the adjusted headband is realized. Compare current ratchet structure and gear structure complex regulation structure, the whole regulation process of this embodiment can not produce great noise. In short, in a normal state, the circumferential holding brake mechanism 7 holds and brakes the adjusting gear 3, that is, the headband is kept in a locked state; when in use, the knob 5 is rotated to release the holding brake, and the headband can be adjusted at will.
Wherein, the casing includes the procapsid 1 that is close to human head and the back casing 2 of keeping away from human head, procapsid 1 and back casing 2 pass through screw 8 fixed connection, and the rear side of back casing 2 is equipped with cylindric supporting seat 21. The mounting shaft part 31 of the adjusting gear 3 is rotatably mounted on the rear shell 2 and extends out of the supporting seat 21, and the tooth part 32 of the adjusting gear 3 is positioned in a cavity enclosed by the front shell 1 and the rear shell 2 and is meshed with the two rack parts 4; the toggle mechanism 6 and the circumferential enclasping brake mechanism 7 are arranged on the rear side part of the rear shell 2. The front shell 1 is provided with a first installation avoiding hole 11, and the adjusting gear 3 is provided with a second installation avoiding hole 33 which is axially communicated and corresponds to the first installation avoiding hole 11.
In some embodiments, the mounting shaft portion 31 of the adjusting gear 3 is rotatably mounted on the rear housing 2 only by means of a bearing; in this embodiment, the adjusting gear 3 is axially limited by the rear housing 2 and the front housing 1, and is rotatably mounted by the mounting hole of the rear housing 2.
In this embodiment, the circumferential clasping brake mechanism 7 includes an elastic clasping ring 71 which is sleeved outside the installation shaft portion 31 of the adjusting gear 3 and is located on the support seat 21, and an opening 711 is provided on the elastic clasping ring 71. In order to further reduce noise, in the embodiment, a plurality of friction plates 72 are circumferentially arranged on the inner wall of the elastic clasping ring 71 at intervals, the friction plates 72 are made of rubber materials (the elastic clasping ring 71 and the friction plates 72 can be integrated by an insert process), and the rubber materials have the characteristics of large friction force and small friction sound with a plastic part, so that silent braking can be realized.
In this embodiment, the toggle mechanism 6 includes a connecting rod 61 and a toggle block 62; the shifting block 62 is rotatably arranged on the supporting seat 21 corresponding to the opening 711 and is used for expanding the elastic clamping ring 71 to release clamping braking of the adjusting gear 3; one end of the connecting rod 61 is hinged with the knob 5, and the other end is hinged with the shifting block 62. Wherein, the shifting block 62 is in an S-shaped structure, and a pivot mounting hole 621 is arranged at the center of the shifting block 62; the support base 21 corresponding to the opening 711 is provided with a pivot 22 fitted to the pivot mounting hole 621.
As shown in fig. 6 to 8, the knob 5 in this embodiment includes a body 51 located at the rear side of the rear housing 2, a side of the body 51 facing the rear housing 2 is provided with a central shaft 52 and a hinge shaft 54 for being hinged to the link 61 of the toggle mechanism 6, an end of the central shaft 52 is provided with a plurality of elastic hooks 53 extending axially at intervals along the circumferential direction, each elastic hook 53 includes an elastic arm 531 and a hook 532 disposed at an end of the elastic arm 531 and extending radially outward, a front side surface of the hook 532 is an arc guide surface 533, and the elastic hooks 53 can smoothly enter the second installation avoiding hole 33 and the first installation avoiding hole 11 under the guide of the arc guide surface 533; the elastic hook 53 (the whole shrinks radially towards the center direction of the central shaft 52) sequentially passes through the second installation avoiding hole 33 and the first installation avoiding hole 11; when the hook 532 passes through the first installation avoiding hole 11, the elastic clamping hook 53 is wholly radially opened; the hook 532 is connected to the front side of the front case 1 in a low manner (i.e., the hook 532 hooks the front case 1), so that the knob 5 is not detached from the case after being mounted.
In order to prevent the elastic clasping ring 71 from moving in the axial direction of the adjusting gear 3, in this embodiment, a plurality of limiting blocks 55 for axially limiting the elastic clasping ring 71 in the circumferential clasping brake mechanism 7 are arranged on one side of the body 51 facing the rear housing 2, and the plurality of limiting blocks 55 are circumferentially distributed on the periphery of the central shaft 52.
The embodiment also discloses a head-mounted device; comprises a head-wearing main machine and the headband adjusting device. In some embodiments, the headband includes a left headband and a right headband; one ends of the left headband and the right headband, which are far away from the shell, are fixedly connected with the corresponding sides of the head-wearing main machine respectively. In other embodiments, the headband is an integrated headband, and the main head-wearing unit is fixed on the mounting part of the headband.
The adjustment process of the headband adjustment device is briefly described below based on the specific application of the headband adjustment device to the headgear:
when the headband is adjusted: when the knob 5 is rotated, the connecting rod 61 in the toggle mechanism 6 simultaneously pushes the shifting block 62 to rotate around the pivot 22 in the opening 711 (clockwise rotation in fig. 2), the two ends of the shifting block 62 open the elastic clasping ring 71, the friction plate 72 in the elastic clasping ring 71 is not abutted with the peripheral wall of the mounting shaft part 31 in the adjusting gear 3, so that friction force and braking torque are not generated, and clasping braking (braking torque is not generated) on the adjusting gear 3 is released; after the brake is released, the adjusting gear 3 returns to rotate, and the rack part 4 which is meshed with the adjusting gear can also move; on the premise that one hand does not loosen the knob 5, the other hand can freely push and pull the headband to adjust according to wearing requirements of different users.
Locking after headband adjustment: the knob 5 is loosened, the elastic holding ring 71 in the circumferential holding brake mechanism 7 is reset, the friction plate 72 is abutted with the peripheral wall of the installation shaft part 31 in the adjusting gear 3, and the adjusting gear 3 is held and braked by generating brake torque due to friction force; during braking, the adjusting gear 3 cannot rotate, so that the rack portion 4 meshed with the adjusting gear cannot move, locking of the headband after adjustment is achieved, the headband is not prone to being changed due to external force after locking, and the headband is more stable after adjustment.
In conclusion, the headband adjusting device and the head-mounted equipment provided by the invention have the advantages that the relatively large noise is not generated in the whole adjusting process, the structure is simple, the wearing operation is portable, and the headband is more stable and reliable after being adjusted; the user experience is greatly satisfied.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A headband adjusting device comprises a shell and a headband, wherein an adjusting gear is rotatably arranged in the shell; the rack part of the head band extends into the shell and is in meshed transmission with the adjusting gear; the brake device is characterized by further comprising a knob, a toggle mechanism linked with the knob and a circumferential clasping brake mechanism used for applying brake torque to the adjusting gear;
the knob is rotated, and the stirring mechanism forces the circumferential enclasping brake mechanism to release enclasping brake on the adjusting gear; loosening the knob, resetting the circumferential enclasping brake mechanism and enclasping and braking the adjusting gear;
the circumferential enclasping brake mechanism comprises an elastic enclasping ring sleeved outside the installation shaft part of the adjusting gear, and an opening is arranged on the elastic enclasping ring;
the toggle mechanism comprises a connecting rod and a toggle block; the shifting block is rotatably arranged on the shell corresponding to the opening and used for opening the elastic holding ring to release the holding brake of the adjusting gear; one end of the connecting rod is hinged with the knob, and the other end of the connecting rod is hinged with the shifting block.
2. The headband adjustment device according to claim 1, wherein the inner wall of the elastic hugging ring is provided with a plurality of friction plates at intervals in circumferential direction; the friction plate is made of rubber materials.
3. The headband adjustment device according to claim 1, wherein the shift block is of an S-shaped structure, and a pivot mounting hole is provided at the center of the shift block; and a pivot matched with the pivot mounting hole is arranged on the shell corresponding to the opening.
4. The headgear adjustment device of claim 1, wherein the housing includes a front housing and a rear housing fixedly connected; the mounting shaft part is rotatably mounted on the rear shell and extends out of the rear shell, and the tooth part of the adjusting gear is positioned in a cavity defined by the front shell and the rear shell; the poking mechanism and the circumferential enclasping brake mechanism are arranged on the rear side part of the rear shell.
5. The headband adjustment device according to claim 4, wherein the front housing is provided with a first mounting avoidance hole, and the adjustment gear is provided with a second mounting avoidance hole which is axially through and corresponds to the first mounting avoidance hole.
6. The headband adjustment device according to claim 5, wherein the knob comprises a body, the body is provided with a central shaft, and the end of the central shaft is provided with a plurality of axially extending elastic hooks at intervals along the circumferential direction; the elastic clamping hook sequentially penetrates through the second installation avoiding hole and the first installation avoiding hole, and the hook part of the elastic clamping hook is connected with the front side part of the front shell in a low mode; the body is provided with a hinged shaft used for being connected with the toggle mechanism.
7. The headband adjusting device according to claim 6, wherein the body is provided with a plurality of limiting blocks for axially limiting the circumferential clasping brake mechanism, and the limiting blocks are circumferentially distributed on the periphery of the central shaft.
8. A headgear comprising the headband adjustment apparatus of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110480779.1A CN113325582B (en) | 2021-04-30 | 2021-04-30 | Headband adjusting device and head-mounted equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110480779.1A CN113325582B (en) | 2021-04-30 | 2021-04-30 | Headband adjusting device and head-mounted equipment |
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| Publication Number | Publication Date |
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| CN113325582A CN113325582A (en) | 2021-08-31 |
| CN113325582B true CN113325582B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110480779.1A Active CN113325582B (en) | 2021-04-30 | 2021-04-30 | Headband adjusting device and head-mounted equipment |
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| CN (1) | CN113325582B (en) |
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| CN208805619U (en) * | 2018-08-27 | 2019-04-30 | 歌尔智能科技有限公司 | Wear elasticity adjusting mechanism |
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| CN112255792A (en) * | 2020-10-27 | 2021-01-22 | 歌尔光学科技有限公司 | Back bandage adjusting device, back bandage and head-mounted display equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576438B (en) * | 2015-09-30 | 2018-01-09 | 中航光电科技股份有限公司 | A kind of connector shell and connector |
| CN106405861A (en) * | 2016-11-11 | 2017-02-15 | 歌尔科技有限公司 | Adjustable head-mounted locking mechanism |
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2021
- 2021-04-30 CN CN202110480779.1A patent/CN113325582B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007107658A (en) * | 2005-10-14 | 2007-04-26 | Pentax Corp | Fixing structure of insertion member |
| CN106594491A (en) * | 2016-12-31 | 2017-04-26 | 歌尔科技有限公司 | VR head binding band adjusting mechanism |
| CN106979260A (en) * | 2017-04-10 | 2017-07-25 | 湖北中尔轮式制动车桥有限公司 | A kind of side-mounted circumferential hold tightly of truck brakes vehicle bridge |
| CN207516643U (en) * | 2017-11-27 | 2018-06-19 | 潍坊歌尔电子有限公司 | Wear regulating mechanism and helmet |
| CN208805619U (en) * | 2018-08-27 | 2019-04-30 | 歌尔智能科技有限公司 | Wear elasticity adjusting mechanism |
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| CN112255792A (en) * | 2020-10-27 | 2021-01-22 | 歌尔光学科技有限公司 | Back bandage adjusting device, back bandage and head-mounted display equipment |
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| CN113325582A (en) | 2021-08-31 |
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Effective date of registration: 20221124 Address after: 261031 No. 268 Dongfang Road, hi tech Industrial Development Zone, Shandong, Weifang Patentee after: GOERTEK Inc. Address before: 261031 workshop 1, phase III, Geer Photoelectric Industrial Park, 3999 Huixian Road, Yongchun community, Qingchi street, high tech Zone, Weifang City, Shandong Province Patentee before: GoerTek Optical Technology Co.,Ltd. |