TW201940089A - Adjusting mechanism and head mounted display - Google Patents

Abstract

An adjusting mechanism and a head mounted display are provided. The adjusting mechanism includes a band, a rotating shaft, a knob, a driving member, and a holder. The rotating shaft has a first ring teeth around a central axis. The band is driven by the rotating shaft to move relatively to the rotating shaft when the rotating shaft rotates around the central axis. The knob has a plurality of chutes. Each chute has a first section and a second section. The depth of each first section is deeper than the depth of each second section. The driving member has a second ring teeth, a plurality of guiding pins, and a plurality of pawls. The driving member is assembled to the knob, and these guiding pins are located in these chutes. The holder has a circular unidirectional teeth. The circular unidirectional teeth is used to couple with these pawls for limiting the rotations of the driving member in one direction relative to the holder.

Description

Adjustment mechanism and head-mounted display device

This disclosure relates to an adjustment mechanism and a head-mounted display device.

With the rapid development of technology, the application of virtual reality has begun to spread. How to use a simple and convenient method to fix the head-mounted display device on the user's head and easily adjust it has become an important issue.

However, the fixing mechanism of the head-mounted display device currently on the market is a bit too complicated, and it is inconvenient for users to operate.

The disclosure provides an adjustment mechanism and a head-mounted display device, which provide users with a quick and intuitive adjustment action.

The adjusting mechanism disclosed in the present disclosure includes a strap, a rotating shaft, a knob, a driving member, and a fixing base. The rotating shaft has a first annular tooth that surrounds the central shaft. When the rotating shaft rotates around the central axis, the belt is driven to move relative to the rotating shaft. The knob has multiple slots. Each chute has a first region and a second region, and the depth of each first region is greater than the depth of each second region. The driving member has a second annular tooth, a plurality of guide posts, and a plurality of detents. The driver is assembled to the knob, and the guide posts are located in the chute. When the guide posts are located in the first areas, the second annular teeth mesh with the first annular teeth. When the guide posts are located in the second areas, the second annular teeth are separated from the first annular teeth. The fixed seat has a ring-shaped unidirectional tooth. The lacing restricts the rotation of the fixed base relative to the lacing, and the ring-shaped unidirectional teeth are used to couple the pawls to limit the unidirectional rotation of the driving member relative to the fixed base.

In an embodiment of the present disclosure, the adjusting mechanism further includes an upper cover and an elastic member, and the upper cover is assembled on the knob. The driving member is limited between the upper cover and the knob, and the elastic member is located between the driving member and the upper cover and is used for applying an elastic force toward the rotating shaft to the driving member.

In an embodiment of the present disclosure, the above-mentioned tie is a rack.

In an embodiment of the present disclosure, when the above-mentioned guide posts are located in the first areas, a locked state is presented between the driving member and the fixing seat. When the knob is rotated to move the guide pillars toward the second areas, the sliding grooves push the driving member away from the fixed seat to release the locked state.

In an embodiment of the present disclosure, the knob is sleeved coaxially with the rotating shaft.

In an embodiment of the present disclosure, each of the slide grooves further includes a third region located between the first region and the second region. The depth of each second region is greater than the depth of each third region.

The head-mounted display device disclosed in the present disclosure includes a display portion and an adjustment mechanism. The adjusting mechanism includes a strap, a rotating shaft, a knob, a driving member, and a fixing seat. The display is connected to the strap. The rotating shaft has a first annular tooth that surrounds the central shaft. When the rotating shaft rotates around the central axis, the belt is driven to move relative to the rotating shaft. The knob has multiple slots. Each chute has a first region and a second region, and the depth of each first region is greater than the depth of each second region. The driving member has a second annular tooth, a plurality of guide posts, and a plurality of detents. The driver is assembled to the knob, and the guide posts are located in the chute. When the guide posts are located in the first areas, the second annular teeth mesh with the first annular teeth. When the guide posts are located in the second areas, the second annular teeth are separated from the first annular teeth. The fixed seat has a ring-shaped unidirectional tooth. The lacing restricts the rotation of the fixed base relative to the lacing, and the ring-shaped unidirectional teeth are used to couple the pawls to limit the unidirectional rotation of the driving member relative to the fixed base.

Based on the above, in the head-mounted display device and the adjustment mechanism disclosed in this disclosure, the driving member can rotate the rotating shaft around the central axis and drive the belt to move relative to the rotating shaft, so that the user can adjust the tightness of the belt. The user can adjust the tightness of the adjusting mechanism of the present disclosure in an adjusting manner close to other daily necessities. In addition, the strap can be quickly released after the driving member is detached from the rotating shaft, so that the user can easily and intuitively release the tension state of the strap.

In order to make the above-mentioned features and advantages of the present disclosure more comprehensible, embodiments are described below in detail with reference to the accompanying drawings.

FIG. 1a is an exploded view of an adjustment mechanism according to an embodiment of the disclosure. FIG. 1b is an exploded view of the adjustment mechanism according to another embodiment of the present disclosure from another perspective. Please refer to FIGS. 1 a and 1 b. In this embodiment, the adjusting mechanism 100 includes a strap 110, a rotating shaft 120, a knob 130, and a driving member 140. The strap 110 itself has, for example, foldability, so that the strap 110 can be bent and attached according to the shape of the attachment in the process of adjusting the tightness.

In this embodiment, the rotating shaft 120 has a first annular tooth 124 that surrounds the central axis C. When the rotating shaft 120 rotates about the central axis C, the tether 110 is moved relative to the rotating shaft 120. In this embodiment, the strap 110 is presented in the form of a rack and coupled with a third annular tooth 122 of the rotating shaft 120, and the strap 110 may also be presented in the form of a rope, an elastic band, or other forms. Disclosure is not limited here.

By the user providing a rotational force, the knob 130 can be rotated around the central axis C. The knob 130 has a plurality of slide grooves 132. In this embodiment, each chute 132 has a first region E1 and a second region E2, and a depth of each of the first regions E1 is greater than a depth of each of the second regions E2. That is, the bottom of the first region E1 of the chute 132 is closer to the rotating shaft 120 than the bottom of the second region E2 of the chute 132. Between each of the first regions E1 and each of the second regions E2, there is a manner in which there is a step difference. The knob 130 and the rotating shaft 120 are coaxially sleeved together, so that the knob 130 and the rotating shaft 120 can rotate along the same axis. In this embodiment, the above-mentioned axis is the central axis C.

The driving member 140 includes a second annular tooth 142, a plurality of guide posts P, and a plurality of pawls 144. The driving member 140 is assembled to the knob 130, and each guide post P is correspondingly disposed in each corresponding sliding slot 132. The number of the guide posts P and the chute 132 is not limited herein. For example, in this embodiment, the fixing member 140 includes three guide posts P and the knob 130 includes three slide grooves 132. In other embodiments, the number of the guide posts P and the slide grooves 132 may also be fixed pieces. Any number can be set on the circumference of 140 and knob 130. The number of the guide posts P and the chute 132 is, for example, equal. The first ring-shaped tooth 124 is coupled to the second ring-shaped tooth 142, so the driving member 140 can drive the rotating shaft 120 to rotate. In this embodiment, the step height between the first region E1 and the second region E2 of the chute 132 is a height capable of completely coupling and completely separating the second annular teeth 142 from the first annular teeth 124. The tooth shapes of the first annular tooth 124 and the second annular tooth 142 are substantially triangular, but the tooth shapes of the first annular tooth 124 and the second annular tooth 142 may be any other tooth shapes that can be coupled to each other. This disclosure is not limited herein. In this embodiment, the first ring-shaped tooth 124 is an external gear, and the second ring-shaped tooth 142 is an internal gear. In other embodiments, the first ring-shaped tooth 124 may be an internal gear, and the second ring-shaped tooth 142 may be an external gear, which is not limited herein.

In this embodiment, the adjusting mechanism 100 further includes an upper cover G and an elastic member S. The upper cover G is assembled on the knob 130. The driving member 140 is limited between the upper cover G and the knob 130, and the elastic member S is located between the driving member 140 and the upper cover G and is used to apply an elastic force toward the rotating shaft 130 to the driving member 140. In detail, the elastic member S provides a fixed elastic force to the driving member 140, so that each guide post P can abut the bottom of each slide slot 132, so that the guide post P does not deviate from the restriction of the slide slot 132, so that the driving member 140 The knob 130 moves up and down uncontrolled.

FIG. 2 is a schematic diagram of a sliding groove of an adjusting mechanism according to an embodiment of the disclosure. FIG. 3a is a schematic diagram of a guide post of an adjusting mechanism in a first area according to an embodiment of the disclosure. Fig. 3b is a sectional view of the adjustment mechanism of Fig. 3a. Please refer to FIG. 2, when the knob 130 is rotated in the clockwise direction in FIG. 1 b and the driving member 140 is rotated in the clockwise direction in FIG. 1 b, for example, these guide posts P can be in the first region E1 and the second region. Move between E2. Please refer to FIGS. 3a and 3b. When the guide posts P are located in the first regions E1, the second annular teeth 142 are engaged with the first annular teeth 124. At this time, the driving member 140 is coupled to the rotating shaft 120, and the rotational force provided by the user is transmitted to the rotating shaft 120 through the knob 130 and the driving member 140. The rotating shaft 120 drives the tether 110 to move relative to the rotating shaft 120 by a rotating force. By the relative movement of the above-mentioned strap 110, the user can adjust the tightness of the adjustment mechanism 100.

FIG. 4a is a schematic diagram of a guide post of an adjusting mechanism in an embodiment of the present disclosure in a second area. Fig. 4b is a sectional view of the adjustment mechanism of Fig. 4a. Please refer to FIGS. 4a and 4b. When the guide posts P are located in the second areas E2, the second ring-shaped tooth 142 is separated from the first ring-shaped tooth 124. At this time, the rotating shaft 120 is free from the restriction of the driving member 140 and can rotate freely. The strap 110 can move relative to the rotating shaft 120 without restriction when under tension. That is, when the user rotates the knob 130 counterclockwise in FIG. 1b, for example, when the driving member 140 rotates clockwise in FIG. 1b relative to the knob 130, these guide posts P move from the first region E1 to the second region. E2 moves. At this time, the rotating shaft 120 is released from the restriction of the driving member 140, so that the strap 110 can be quickly released without resistance when receiving tension.

FIG. 5 is a schematic diagram of a sliding groove of an adjusting mechanism according to another embodiment of the disclosure. Please refer to FIG. 5. In another embodiment, each chute 132 has a third region E3 in addition to the first region E1 and the second region E2. The third regions E3 are located between the first regions E1 and the second regions E2. The depth of each second region E2 is greater than the depth of each third region E3. That is, the bottom of the second region E2 of the chute 132 is closer to the rotating shaft 120 than the bottom of the third region E3 of the chute 132. By providing the third area E3, each chute 132 has a protrusion between each first area E1 and each second area E2. When the guide post P moves between the first zone E1 and the second zone E2, the user feels the ups and downs of the guide post P through the protrusion of the third zone E3, and can know that the driving member 140 is indeed in the first zone E1 and the first zone. Switch between the two areas E2. The protrusion of the third region E3 can also prevent the guide post P from arbitrarily moving between the first region E1 and the second region E2 due to the shaking or slight force of the driving member 140.

FIG. 6 is a schematic diagram illustrating coupling between a pawl and an annular unidirectional tooth of an adjusting mechanism according to an embodiment of the disclosure. Please refer to FIG. 6, the fixing base 160 has a ring-shaped unidirectional tooth 162. The strap 110 restricts the rotation of the fixing base 160 relative to the strap 110. That is, when the tether 110 moves relative to the rotating shaft 120, the tether 110 only moves relative to the fixed base 160 but does not rotate relative to the fixed base 160. The annular one-way teeth 162 are used to couple the pawls 144 to restrict the driving member 140 from rotating in one direction relative to the fixed seat 160. When the driving member 140 rotates unidirectionally with respect to the fixing base 160, for example, when the driving member 140 rotates counterclockwise in FIG. 1b, it is the direction in which the guide post P moves toward the first region E1.

When the guide posts P are located in the first regions E1, the driving member 140 and the fixing base 160 are in a locked state L. At this time, the driving member 140 can still rotate in a direction that the guide post P moves toward the first area E1, so that the user can continue to rotate the knob 130 to adjust the tightness of the strap 110. Please refer to FIGS. 3a and 3b again. When the guide post P is moved toward the second area E2 by turning the knob 130, the one-way ring tooth 162 is coupled with the pawl 144, and the driving member is restricted from being oriented so that the guide post P rotates in the direction in which the second zone E2 moves. The driving member 140 remains stationary through the rotation of the knob 130, and the sliding grooves 132 push the driving member 140 away from the rotating shaft 130 to release the locked state L. When the driving member 140 is unlocked, the user can quickly release the adjustment mechanism 100 by simply pulling the adjustment mechanism 100.

Other embodiments will be listed below for illustration. It must be noted here that the following embodiments follow the component numbers and parts of the previous embodiments. The same reference numerals are used to represent the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

FIG. 7 is a schematic diagram of a head-mounted display device according to an embodiment of the disclosure. Please refer to FIG. 7, this disclosure provides a head-mounted display device using the adjustment mechanism. The head-mounted display device 10 includes a display portion 150 and an adjustment mechanism 100. The adjustment mechanism 100 is, for example, connected to the display unit 150 in a pivotal manner. The user adjusts the tightness of the strap 110 by rotating the knob 130 to rotate the strap 110 relative to the rotating shaft 120. When the head-mounted display device 10 is worn by a user, the length of the strap 110 can be shortened by the user's adjustment knob 130 until the strap 110 is put on the user's head and stopped. The display portion 150 corresponds to the eyes of the user and is used to provide user image information. A liquid crystal display (Liquid-Crystal Display, LCD) is arranged inside the display unit 150, for example. The display unit 150 in this embodiment can be used as a virtual reality device, but the disclosure is not limited thereto. It is worth mentioning that the adjusting mechanism in the above embodiment can also be used on devices such as shoes, hard hats, or helmets, so as to adjust the tightness of the strap or headband.

To sum up, in the above-mentioned embodiment of the present disclosure, the user drives the tie belt through the driving member and the rotating shaft through the rotary knob, so that the tie belt can move relative to the rotating shaft until the tie belt can smoothly and comfortably bear the use Head. In addition, as long as the user rotates the knob in the opposite direction, the adjustment mechanism will be unlocked, so the strap can be loosened to increase the size of the strap. At this time, the user can remove the head-mounted display device.

Although the present disclosure has been disclosed as above by way of example, it is not intended to limit the present disclosure. Any person with ordinary knowledge in the technical field should make some changes and modifications without departing from the spirit and scope of the present disclosure. The scope of protection of this disclosure shall be determined by the scope of the attached patent application.

10‧‧‧ Head-mounted display device

100‧‧‧ adjustment agency

110‧‧‧ Lace

112‧‧‧ Band tooth

120‧‧‧ shaft

122‧‧‧The first ring tooth

124‧‧‧first ring tooth

130‧‧‧ knob

132‧‧‧Chute

140‧‧‧Driver

142‧‧‧Second ring tooth

144‧‧‧Pawl

150‧‧‧Display

160‧‧‧Fixed

162‧‧‧Ring One-way Teeth

C‧‧‧center axis

E1‧‧‧ District 1

E2‧‧‧Second District

E3‧‧‧ District III

P‧‧‧Guide Post

G‧‧‧ Upper cover

S‧‧‧elastic parts

L‧‧‧ Locked

FIG. 1a is an exploded view of an adjustment mechanism part according to an embodiment of the disclosure. FIG. 1b is an exploded view of another aspect of the adjusting mechanism according to an embodiment of the disclosure. FIG. 2 is a schematic diagram of a sliding groove of an adjusting mechanism according to an embodiment of the disclosure. FIG. 3a is a schematic diagram of a guide post of an adjusting mechanism in a first area according to an embodiment of the disclosure. Fig. 3b is a sectional view of the adjustment mechanism of Fig. 3a. FIG. 4a is a schematic diagram of a guide post of an adjusting mechanism in an embodiment of the present disclosure in a second area. Fig. 4b is a sectional view of the adjustment mechanism of Fig. 4a. FIG. 5 is a schematic diagram of a sliding groove of an adjusting mechanism according to another embodiment of the disclosure. FIG. 6 is a schematic diagram illustrating coupling between a pawl and an annular unidirectional tooth of an adjusting mechanism according to an embodiment of the disclosure. FIG. 7 is a schematic diagram of a head-mounted display device according to an embodiment of the disclosure.

Claims (12)

An adjusting mechanism includes: a tether; a rotary shaft having a first ring-shaped tooth surrounding a central axis, wherein the rotary shaft drives the tether to move relative to the rotary shaft when the rotary shaft rotates around the central axis; a knob having a plurality of A chute, wherein each of the chute has a first region and a second region, the depth of each of the first regions is greater than the depth of each of the second regions; a driving member having a second annular tooth, a plurality of guides And a plurality of detents, wherein the driving member is assembled to the knob, and the guide posts are located in the chute, and when the guide posts are located in the first areas, the second ring-shaped tooth engages with the first An annular tooth, when the guide posts are located in the second areas, the second annular tooth is detached from the first annular tooth; and a fixed seat having an annular unidirectional tooth, wherein the tie restricts the For the rotation of the fixing base relative to the strap, the ring-shaped one-way tooth is used for coupling the pawls, so as to restrict the driving member to rotate unidirectionally relative to the fixing base. The adjusting mechanism according to item 1 of the scope of patent application, further comprising: an upper cover assembled to the knob, wherein the driving member is limited between the upper cover and the knob; and an elastic member is located between the driving member and the knob. The upper cover is configured to apply an elastic force to the driving member toward the rotating shaft. The adjusting mechanism according to item 1 of the scope of patent application, wherein the strap is a rack. The adjustment mechanism according to item 1 of the scope of patent application, wherein when the guide posts are located in the first zones, the driving member and the fixed seat assume a locked state, and when the knob is rotated to make the guides When the column moves towards the second areas, the sliding grooves push the driving member away from the fixing seat to release the locked state. The adjustment mechanism according to item 1 of the scope of patent application, wherein the knob is sleeved coaxially with the rotating shaft. The adjusting mechanism according to item 1 of the scope of patent application, wherein each of the chute further has a third zone located between the first zone and the second zone, and the depth of each of the second zones is greater than that of each of the third zones. The depth of the zone. A head-mounted display device includes: a display portion; an adjustment mechanism including: a strap connected to the display portion; a rotating shaft having a first ring-shaped tooth surrounding a central shaft, wherein the rotating shaft is wound around the When the central axis rotates, the strap is moved relative to the rotation axis; a knob has a plurality of chute, wherein each of the chute has a first zone and a second zone, and the depth of each of the first zones is greater than that of each of the second zones; The depth of the zone; a drive member with a second ring-shaped tooth, a plurality of guide posts, and a plurality of detents, wherein the drive member is assembled to the knob, and the guide posts are located in the chute, the guides When the posts are located in the first areas, the second annular teeth mesh with the first annular teeth, and when the guide posts are located in the second areas, the second annular teeth disengage from the first annular teeth; And a fixing seat with a ring-shaped one-way tooth, wherein the strap restricts the rotation of the fixing seat relative to the strap, and the ring-shaped one-way tooth is used for coupling the pawls to limit the driving member relative to the The fixed seat rotates in one direction. The head-mounted display device according to item 7 of the scope of patent application, wherein the adjustment mechanism further comprises: an upper cover assembled on the knob, wherein the driving member is limited between the upper cover and the knob; and an elastic member , Located between the driving member and the upper cover and used to apply an elastic force toward the rotating shaft to the driving member. The head-mounted display device according to item 7 of the patent application scope, wherein the strap is a rack. The head-mounted display device according to item 7 of the scope of patent application, wherein when the guide posts are located in the first zones, the driving member and the fixing seat assume a locked state, and when the knob is rotated, the When the guide pillars move toward the second areas, the sliding grooves push the driving member away from the fixing seat to release the locked state. The head-mounted display device according to item 7 of the scope of patent application, wherein the knob is sleeved coaxially with the rotating shaft. The head-mounted display device according to item 7 of the scope of patent application, wherein each of the chute grooves further has a third region located between the first region and the second region, and each of the second regions has a depth greater than that of each The depth of the third zone.