CN219831519U

CN219831519U - Adjustable wearing device and head-mounted display equipment

Info

Publication number: CN219831519U
Application number: CN202320627902.2U
Authority: CN
Inventors: 胡颉
Original assignee: Weifang Goertek Electronics Co Ltd
Current assignee: Weifang Goertek Electronics Co Ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-10-13
Anticipated expiration: 2033-03-23

Abstract

The utility model discloses an adjustable wearing device, which is suitable for head-mounted display equipment and comprises: a headband for securing a head-mounted display device to a user's head, comprising a rack element; a driven wheel engaged with the rack member, the driven wheel being configured with a radial guide groove extending radially thereof; a driving wheel capable of driving the driven wheel to rotate, wherein a rotation guide groove is formed on the driving wheel; the driven wheel is arranged in the fixed wheel, and the inner peripheral edge of the fixed wheel is provided with limiting teeth; the locking block is arranged in the radial guide groove and can slide along the radial guide groove, and the end part of the locking block is provided with a limiting protrusion which can be meshed with the limiting teeth; the side surface of the locking block is provided with a guide protrusion which extends into the rotary guide groove and can slide along the rotary guide groove. A head mounted display device is also provided. The adjustable wearing device provided by the utility model has no obvious continuous impact of hard parts in the adjusting process, so that the noise in the adjusting process can be ensured to be minimized.

Description

Adjustable wearing device and head-mounted display equipment

Technical Field

The utility model belongs to the technical field of electronic equipment, and particularly relates to an adjustable wearing device and head-mounted display equipment.

Background

A Head-mounted display device, also called a Head-mounted display (HMD) for short, is a device for displaying images and colors. The common head-mounted display device is in the form of an eye shield or helmet, the display screen is close to eyes of a user, and the focal length is adjusted through an optical path so as to project pictures to the eyes in a short distance.

Common head-mounted display devices are worn on the head by a headband. The weight of the main stream products on the market is more than 300 g, and the headband of the commercially available head-mounted display device has an adjusting function in order to avoid sliding and falling. The existing adjusting mechanism is generally realized by adopting gears, ratchets and other parts, the hard transmission part can collide in the adjusting process, and the similar click sound can appear in the adjusting process, so that the use experience of a user is affected.

Disclosure of Invention

Aiming at the problems that in the prior art, a hard transmission part is easy to collide in the length adjustment process of a head band, noise can occur during adjustment, and the use experience of a user is affected, the first aspect of the utility model designs and provides an adjustable wearing device.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

an adjustable wear apparatus adapted for use with a head mounted display device, comprising: a headband for securing the head mounted display device to a user's head; the headband includes a rack element; a driven wheel engaged with the rack element; the driven wheel is provided with a radial guide groove extending along the radial direction of the driven wheel; the driving wheel can drive the driven wheel to rotate, and a rotation guide groove is formed in the driving wheel; the driven wheel is arranged in the fixed wheel, and limiting teeth are formed on the inner peripheral edge of the fixed wheel; the locking block is arranged in the radial guide groove and can slide along the radial guide groove, and the end part of the locking block is provided with a limiting protrusion which can be meshed with the limiting tooth; the side surface of the locking block is provided with a guide protrusion which extends into the rotation guide groove and can slide along the rotation guide groove.

In some alternative embodiments of the present utility model, the locking blocks are symmetrically arranged in groups; the adjustable wear device further comprises: an elastic element disposed along a radial direction of the driven wheel; the other end of the locking block opposite to the limiting protrusion is provided with a connecting column, and two ends of the elastic element are respectively connected with a connecting column arranged on the locking block.

In some alternative embodiments of the utility model, the driven wheel has: a first end face on which a protruding portion is configured, the outer peripheral edge of the protruding portion being configured with a drive tooth that meshes with the rack element; the second end face is opposite to the first end face, and a driven limiting element protruding outwards is constructed on the second end face; the drive wheel has: the driving limiting element extends along the radial direction of the driving wheel, and the driving wheel rotates to enable the driving limiting element to be in contact with the driven limiting element to drive the driven wheel to rotate.

In some alternative embodiments of the utility model, the driven wheel has: a guide portion provided to the second end face, in which a receiving cavity is formed, in which the elastic member is provided; the two ends of the guiding part are respectively provided with one radial guiding groove.

In some alternative embodiments of the present utility model, the driven limiting elements are symmetrically arranged in groups and extend outwards from the side wall of the guiding portion, and an included angle between any group of driven limiting elements is greater than 90 degrees and less than 180 degrees.

In some optional embodiments of the present utility model, the driving limiting elements are symmetrically arranged in groups, and any one driving limiting element is located between two groups of driven limiting elements.

In some alternative embodiments of the present utility model, the driving wheel has a circular groove concavely provided inward, the rotation guide groove is formed at the bottom of the circular groove, and the rotation guide groove is formed in an arc shape.

In some alternative embodiments of the utility model, the adjustable wear device further comprises: the fixed end plate and the fixed wheel are integrally formed and arranged around the fixed wheel; the fixed end plate is detachably and fixedly connected with the headband shell

In some alternative embodiments of the utility model, the headband housing has an opening therein, and the capstan extends at least partially through the opening.

A second aspect of the utility model provides a head mounted display device comprising an adjustable wear arrangement comprising a headband for securing the head mounted display device to a user's head; the headband includes a rack element; a driven wheel engaged with the rack element; the driven wheel is provided with a radial guide groove extending along the radial direction of the driven wheel; the driving wheel can drive the driven wheel to rotate, and a rotation guide groove is formed in the driving wheel; the driven wheel is arranged in the fixed wheel, and limiting teeth are formed on the inner peripheral edge of the fixed wheel; the locking block is arranged in the radial guide groove and can slide along the radial guide groove, and the end part of the locking block is provided with a limiting protrusion which can be meshed with the limiting tooth; the side surface of the locking block is provided with a guide protrusion which extends into the rotation guide groove and can slide along the rotation guide groove.

Compared with the prior art, the utility model has the advantages and positive effects that:

the adjustable wearing device provided by the utility model has no obvious continuous impact of hard parts in the adjusting process, so that the noise in the adjusting process can be ensured to be minimized.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an adjustable wearable device according to some embodiments of the present utility model;

FIG. 2 is a schematic view of an alternative view of an adjustable wearable device according to some embodiments of the present utility model;

FIG. 3 is an exploded view of an adjustable wear device provided in some embodiments of the present utility model;

FIG. 4 is a schematic view of the structure of the driven wheel, fixed wheel and locking block of the adjustable wearable device according to some embodiments of the present utility model;

FIG. 5 is a schematic view of the structure of the driven wheel, rack member and locking block of the adjustable wear device according to some embodiments of the present utility model;

fig. 6 is a schematic structural view of a driving wheel and a locking block in an adjustable wearable device according to some embodiments of the present utility model;

FIG. 7 is a schematic view of a locking block in an adjustable wearable apparatus according to some embodiments of the present utility model;

fig. 8 is a schematic view of an adjustable wearable device according to some embodiments of the present utility model.

Description of the embodiments

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples.

Examples of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Aiming at the problems that in the prior art, a hard transmission part is easy to collide in the length adjustment process of a headband, noise can occur during adjustment, and the use experience of a user is affected, as shown in figures, an adjustable wearing device is designed and provided. The adjustable wearing device is suitable for a head-mounted display device. The head-mounted display device is a near-to-eye device for displaying images and colors. In use, a display screen and associated optical components in the head mounted display device are positioned near the eyes of a user, providing a user immersive experience in which the user can view and interact with the virtual environment.

From a hardware structural perspective, the head mounted display apparatus includes at least an outer housing, a seal assembly, an adjustable wear device, a processor, a memory, a communication interface, a sensor assembly, a power source, and an optical assembly.

The outer housing of the head mounted display device is typically made of a hard material configured to house at least a portion of the sensor elements, power supply and optical components of the processor, memory, communication interface, sensor assembly. The housing is typically designed in the form of an eye mask. The seal assembly is generally fixedly attached to the edge of the outer housing and is configured to contact the face of the user, and is made of soft and opaque materials, so that the head-mounted display device is prevented from sliding in a wearing state, wearing comfort is improved, and the observation experience is prevented from being influenced by gap light transmission.

The adjustable wearing device is fixedly connected with the outer cover shell and is used for fixing the outer cover shell at a proper position of the head of a user. In this embodiment, the adjustable wear device includes a set of headgear that may be made of a rigid or elastic material. The specific structure of the adjustable wear device will be described in further detail below.

The processor is typically implemented as a Central Processing Unit (CPU) or as a dedicated processor.

The memory may include volatile memory and/or non-volatile memory configured to store instructions or data associated with at least one component of the head mounted display device, such as storing an application program. By way of example, the application may be at least one image data displayed via a display screen. The processor may access the memory to execute instructions stored in the memory to perform associated functions.

The communication interface may be a serial communication interface, but also an interface supporting different wireless communication protocols, such as Wi-Fi, bluetooth, near field communication, etc.

The sensor assembly includes, but is not limited to, a camera, an infrared sensor, a gyroscope, an acceleration sensor, and the like. The power supply includes a battery and also includes a corresponding power circuit that can be charged either wired or wirelessly.

The optical assembly includes a lens and also includes a display screen. The display screen may be an LED display, an LCD display, an OLED display, or the like. The lens may include one or more lenses, and the lenses may constitute a well-established light path design in the art.

The adjustable wear device is described in further detail with reference to fig. 1 to 8. In the present utility model, the headband includes rack elements 10, and the rack elements 10 are provided in pairs, for example, 2; the overall length of the headband is adjusted by the telescoping of the rack member 10. Specifically, the adjustable wear device includes several main parts, a driven wheel 12, a driving wheel 14, a fixed wheel 16, and a locking block 18. The driven pulley 12 is engaged with the two rack elements 10, respectively, and radial guide grooves 20 extending radially along the driven pulley 12 are formed on the driven pulley 12. The driving wheel 14 is a part capable of being manually operated, namely, a user can adjust the expansion and contraction of the headband by rotating the driving wheel 14 in different directions, so as to achieve the effect of tightening or loosening. The driving wheel 14 can drive the driven wheel 12 to rotate. The driving wheel 14 is constructed with a rotation guide groove 22. The driven wheel 12 is disposed in the fixed wheel 16, and the inner peripheral edge of the fixed wheel 16 is configured with a spacing tooth 52. The lock block 18 is disposed in the radial guide groove 20 and is slidable along the radial guide groove 20. The end of the locking block 18 is configured with a limit projection 30, and the limit projection 30 of the end of the locking block 18 can be engaged with the limit tooth 52 of the inner peripheral edge of the fixed sheave 16. The side surface of the locking block 18 is configured with a guide projection 26, and the guide projection 26 protrudes into the rotation guide groove 22 and is slidable along the rotation guide groove 22.

Describing the exemplary adjustment process, in the initial state, the limit projection 30 at the end of the locking block 18 engages with one of the limit teeth 52 on the inner peripheral edge of the fixed sheave 16, and the driven sheave 12 is in the locked state; when the user rotates the driver 14 in a first direction (e.g., clockwise as viewed in fig. 1), the position of the rotation guide groove 22 changes at a stage where the rotation angle is relatively small, e.g., about 20 °, the rotation guide groove 22 contacts the guide projection 26, a radial external force is applied to the guide projection 26 so that the lock block 18 moves in the radial direction of the driven wheel 12 toward the center of the circle, and the limit projection 30 at the end of the lock block 18 is disengaged from the limit teeth 52 at the inner peripheral edge of the fixed wheel 16, and at this stage, the lock block 18 does not collide with any other member, and thus no impact sound occurs. The driving wheel 14 continues to rotate, the driving wheel 14 drives the driven wheel 12 to rotate, and the driven wheel 12 drives the rack element 10 to move, so that the headband is tightened, and at the stage, the locking block 18 does not collide with any other part, and no impact sound occurs. After the rotation is in place, the external force acting on the driving wheel 14 disappears, the locking block 18 is reset, and moves along the radial direction away from the circle center, the limit protrusion 30 at the end part of the locking block 18 is meshed with the other limit tooth 52 again, so that the locking of the driven wheel 12 is realized, in the process, the locking block 18 is only contacted with the limit tooth 52 once, no sound caused by continuous collision can occur, and the adjustment noise is minimized. When the user rotates the capstan 14 in a second direction (e.g., counterclockwise in fig. 1), the components act similarly to the locking process described above, i.e., the adjustment process of releasing the headband. Of course, it is also possible to design the operation of loosening the headband when rotating in the first direction and the operation of tightening the headband when rotating in the second direction.

By means of the structure, no obvious continuous impact of the hard parts is generated in the adjusting process, and therefore noise in the adjusting process can be minimized.

As shown in fig. 3 to 5, the locking blocks 18 are arranged symmetrically in groups, for example also in 2 groups, to be adapted to the rack elements 10 arranged in pairs. The adjustable wearing device further comprises an elastic element 24, and the elastic element 24 is used for driving the locking block 18 to reset after the adjustment is finished, so that locking is realized. The elastic element 24 is radially arranged along the driven wheel 12, the other end of the locking block 18 opposite to the limiting protrusion 30 is provided with a connecting column 28, two ends of the elastic element 24 are respectively connected with one connecting column 28 arranged on the locking block 18, and the two locking blocks 18 are driven to move in a direction deviating from the circle center in the radial direction, so that the state of meshing with the limiting teeth 52 is restored.

The driven wheel 12, the driving wheel 14 and the fixed wheel 16 are arranged concentrically. Driven wheel 12 has a first end surface 54 and a second end surface 32. The first end surface 54 is provided with a projection 34, and the outer peripheral edge of the projection 34 is provided with a gear tooth which engages with the rack element 10. The second end face 32 is opposite the first end face 54, and the second end face 32 is configured with an outwardly projecting driven stop member 36. On the contrary, a driving limiting element 42 is disposed on one side of the driving wheel 14, the driving limiting element 42 extends along the radial direction of the driving wheel 14, and the driving wheel 14 rotates to make the driving limiting element 42 contact with the driven limiting element 36 to drive the driven wheel 12 to rotate, so as to realize force transmission.

The second end surface 32 of the driven wheel 12 is further provided with a guide portion 38, and the guide portion 38 extends along the diameter direction of the driven wheel 12 as a whole. The guide portion 38 has a receiving cavity 40 formed therein, and the elastic member 24 is disposed in the receiving cavity 40, and the guide portion 38 has a radial guide groove 20 formed at both ends thereof for sliding movement of the locking block 18.

In an alternative embodiment of the present utility model, the driven limiting elements 36 are symmetrically arranged in groups, with a total of two groups of four. The driven limiting elements 36 extend radially outward from the side walls of the guide 38, with any set of driven limiting elements 36 having an included angle greater than 90 degrees and less than 180 degrees.

As shown in fig. 6, the driving limiting elements 42 corresponding to the driven limiting elements 36 are also symmetrically arranged in groups. The capstan 14 has a circular recess 44 recessed inwardly. Any one of the driving spacing elements 42 is located between two sets of driven spacing elements 36. The driving limiting element 42 is disposed separately in the diameter direction of the driving wheel 14, i.e. extends in a direction away from the bottom surface of the circular groove 44, so as to further interfere with the driven limiting element 36 in the assembled condition, thereby realizing force transmission.

The rotary guide slot 22 is configured at the bottom of the circular recess 44. In some alternative embodiments of the utility model, the rotary guide slot 22 is configured in an arc shape, and in the assembled state, the rotary guide slot 22 is positioned between a set of driven stop elements 36 to provide an allowable adjustment travel. In alternative embodiments of the utility model, the rotary guide slot 22 can also be designed in other shapes.

In some embodiments of the present utility model, the rack member 10 is disposed in the headgear housing 46. The adjustable wear device is removably and fixedly coupled to headband housing 46 by a fixed endplate 50. The fixed end plate 50 is preferably rectangular plate-shaped, and the fixed end plate 50 is integrally formed with the fixed sheave 16 and disposed around the fixed sheave 16. Illustratively, the securing end plate 50 is removably secured to the headgear shell 46 by bolts. The headband housing 46 has an opening 48 therein and the capstan 14 extends at least partially through the opening 48 for ease of operation by a user.

A second aspect of the utility model provides a head mounted display device, which may be a virtual reality display device (VR device) or an augmented reality display device (AR device). The head-mounted display device is provided with an adjustable wearing device, and the specific structure of the adjustable wearing device is described in detail in the above embodiments and in the drawings of the specification, which are not repeated here. The same technical effects can be achieved with the head-mounted display device provided with the adjustable wearing device.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An adjustable wear apparatus adapted for use with a head mounted display device, comprising:

a headband for securing the head mounted display device to a user's head; the headband includes a rack element;

a driven wheel engaged with the rack element; the driven wheel is provided with a radial guide groove extending along the radial direction of the driven wheel;

the driving wheel can drive the driven wheel to rotate, and a rotation guide groove is formed in the driving wheel;

the driven wheel is arranged in the fixed wheel, and limiting teeth are formed on the inner peripheral edge of the fixed wheel; and

the locking block is arranged in the radial guide groove and can slide along the radial guide groove, and the end part of the locking block is provided with a limiting protrusion which can be meshed with the limiting tooth; the side surface of the locking block is provided with a guide protrusion which extends into the rotation guide groove and can slide along the rotation guide groove.

2. The adjustable wear device of claim 1, wherein,

the locking blocks are symmetrically arranged in groups;

the adjustable wear device further comprises:

an elastic element disposed along a radial direction of the driven wheel;

the other end of the locking block opposite to the limiting protrusion is provided with a connecting column, and two ends of the elastic element are respectively connected with a connecting column arranged on the locking block.

3. The adjustable wear device of claim 2, wherein,

the driven wheel has:

a first end face on which a protruding portion is configured, the outer peripheral edge of the protruding portion being configured with a drive tooth that meshes with the rack element; and

the second end face is opposite to the first end face, and a driven limiting element protruding outwards is constructed on the second end face;

the drive wheel has:

the driving limiting element extends along the radial direction of the driving wheel, and the driving wheel rotates to enable the driving limiting element to be in contact with the driven limiting element to drive the driven wheel to rotate.

4. The adjustable wear device of claim 3, wherein,

the driven wheel has:

a guide portion provided to the second end face, in which a receiving cavity is formed, in which the elastic member is provided; the two ends of the guiding part are respectively provided with one radial guiding groove.

5. The adjustable wear device of claim 4, wherein,

the driven limiting elements are symmetrically arranged in groups and extend outwards from the side wall of the guide part, and the included angle between any two groups of driven limiting elements is larger than 90 degrees and smaller than 180 degrees.

6. The adjustable wear device of claim 4, wherein,

the driving limiting elements are symmetrically arranged in groups, and any one driving limiting element is positioned between the two groups of driven limiting elements.

7. The adjustable wear device of claim 5, wherein,

the driving wheel is provided with a circular groove which is concavely arranged inwards, the rotating guide groove is constructed at the bottom of the circular groove, and the rotating guide groove is constructed into an arc shape.

8. The adjustable wear device of any one of claims 1-7, wherein,

the adjustable wear device further comprises:

the fixed end plate and the fixed wheel are integrally formed and arranged around the fixed wheel; the fixed end plate is detachably and fixedly connected with the headband shell.

9. The adjustable wear device of claim 8, wherein,

the headband housing has an opening therein, and the capstan extends at least partially through the opening.

10. A head mounted display device comprising the adjustable wear arrangement of any one of claims 1 to 9.