CN109380817B

CN109380817B - Lace adjusting structure

Info

Publication number: CN109380817B
Application number: CN201710650213.2A
Authority: CN
Inventors: 林俐; 林克威; 凃智凯; 陈俊达; 陈俊宇
Original assignee: Acer Inc
Current assignee: Acer Inc
Priority date: 2017-08-02
Filing date: 2017-08-02
Publication date: 2021-05-04
Anticipated expiration: 2037-08-02
Also published as: CN109380817A

Abstract

The invention provides a lace adjusting structure, which comprises a lace, a rotating shaft and a knob. The lace has a band-shaped tooth. The shaft has a first annular tooth and a second annular tooth surrounding a shaft, wherein the first annular tooth is coupled to the band-shaped tooth such that the shaft moves on the lace by rotating along the shaft. The knob is rotatable along the axis and movably coupled to the shaft along the axis. The knob is provided with a third annular tooth, and the third annular tooth is coupled and meshed with or released from the second annular tooth along the movement of the knob along the shaft. When the third annular tooth is meshed with the second annular tooth, the knob is suitable for synchronously driving the rotating shaft to rotate under the action of external force.

Description

Lace adjusting structure

Technical Field

The invention relates to a strap adjusting structure and a head-mounted display device.

Background

It is common for wearable articles, such as respirators, masks, clothing, backpacks or even electronic devices, to be strapped to a user for easy use or to avoid falling off, and the strap structure is adapted to suit the shape of the various articles, the position of the articles on the user or the requirements of the user.

With the rapid development of technology, in recent years, products integrating a head-mounted device and an electronic module are developed so that the electronic module can be worn on the head of a user. For example, the display module is disposed on the head-mounted electronic device, so that the user can see the picture directly in front of the eyes.

In order to allow the user to adjust the display module to a proper angle, the display module can be arranged on the head-wearing device by a belt, so that the head-wearing device is convenient for the user to wear.

Disclosure of Invention

The invention provides a strap adjusting structure, which provides intuitive adjusting action for a user.

The invention relates to a lace adjusting structure, which comprises a lace, a rotating shaft and a knob. The lace has a band-shaped tooth. The shaft has a first annular tooth and a second annular tooth surrounding a shaft, wherein the first annular tooth is coupled to the band-shaped tooth such that the shaft moves on the lace by rotating along the shaft. The knob is rotatable along the axis and movably coupled to the shaft along the axis. The knob is provided with a third annular tooth, and the third annular tooth is coupled and meshed with or released from the second annular tooth along the movement of the knob along the shaft. When the third annular tooth is meshed with the second annular tooth, the knob is suitable for synchronously driving the rotating shaft to rotate under the action of external force.

Based on the above, in the strap adjusting structure of the present invention, the strap and the rotating shaft are coupled to each other through the strap-shaped teeth and the first ring-shaped teeth, so that the rotating action of the rotating shaft can cause the effect of moving along the strap-shaped teeth, thereby adjusting the position of the rotating shaft on the strap. That is, when the user applies force and drives the knob to rotate, the position of the knob on the lace can be changed, so that the user can control the movement of the lace to adjust the lace.

Moreover, the knob can further cause the third annular tooth and the second annular tooth to be meshed or not when moving along the rotating shaft, and when the knob is meshed with the rotating shaft, a user can achieve the mode of rotating the knob and the rotating shaft to adjust the lace.

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

FIG. 1 is a schematic diagram of a strap adjustment structure according to an embodiment of the invention;

FIG. 2 is a schematic view of the strap adjustment structure of FIG. 1 in another state;

FIG. 3 shows an exploded view of the strap adjusting structure of FIG. 1;

FIGS. 4 and 5 are schematic views of a portion of the strap adjusting structure shown in different views;

FIG. 6 is a partial schematic view of the strap adjustment structure from another perspective;

fig. 7A and 7B are schematic diagrams illustrating different states of the knob and the rotating shaft, respectively.

The reference numbers illustrate:

100: lace adjusting structure

110: outer casing

112: upper casing

114: lower casing

114 a: convex column

120A, 120B: tie strap

122A, 122B: band-shaped tooth

124A, 124B: fixing hole

130: rotary knob

132: fourth ring gear

134: third ring gear

140: rotating shaft

142: first annular tooth

144: second annular tooth

150: first elastic member

160A, 160B: locating piece

161A, 161B: clamping block

170: bearing seat

171: fastening part

172: convex column

173: bottom part

180A, 180B: second elastic member

200: ring belt body

300: article

F: external force

L1: shaft

Detailed Description

Fig. 1 is a schematic diagram of a strap adjusting structure according to an embodiment of the invention. Fig. 2 is a schematic view of the strap adjustment structure of fig. 1 in another state. Referring to fig. 1 and fig. 2, in the present embodiment, the lace adjusting structure 100 includes

laces

120A and 120B, a girdle 200, a shell 110 and a knob 130. Here, the ring body 200 is, for example, a head-mounted ring, and an article 300 is connected to the ring body away from the

straps

120A and 120B, and a user is adapted to unfold the article 300 in a related manner by fitting the ring body 200 on the head. The object 300 is, for example, an electronic device such as a display, a mask, etc., and the type of the object is not limited herein. Here, the

laces

120A, 120B are respectively connected to opposite ends of the band body 200 and cross and overlap in the outer shell 110. As shown in fig. 1 and 2, when the user adjusts the knob 130 exposed to the housing 110, the relative positions of the

laces

120A, 120B and the housing 110 can be adjusted, so that the portion of the

laces

120A, 120B exposed to the housing 100 can be extended or shortened, thereby adjusting the size of the

lace

120A, 120B and the lace ring 200 to fit the head of the user. In addition, the strap adjusting structure 100 is not limited to be used on the head, and may be applied to other wearing devices of the human body.

Fig. 3 shows an exploded view of the strap adjusting structure of fig. 1. Referring to fig. 1 to 3, in the present embodiment, the outer shell 110 includes an upper shell 112 and a lower shell 114, and the lace adjusting structure 100 further includes a rotating shaft 140 and a bearing seat 170, wherein the

laces

120A and 120B each have a counterbore and

belt teeth

122A and 122B in the counterbores. The bearing seat 170 is sleeved on the convex column 114a of the lower shell 114, and the

laces

120A, 120B are movably combined with the bottom 173 of the bearing seat 170, so that when the bearing seat 170 is assembled on the lower shell 114 through the buckling part 171, the

laces

120A, 120B substantially movably penetrate between the bearing seat 170 and the lower shell 114, i.e. the bearing seat 170 can be regarded as movably arranged on the

laces

120A, 120B.

Furthermore, the

straps

120A and 120B are flexible, so that the contours thereof can be changed according to the contours of the peripheral structures, in the embodiment, the

straps

120A and 120B can have arc-shaped contours in accordance with the contours of the upper shell 112, the lower shell 114 and the ring belt body 200, so that the closed contour formed by the outer shell 110, the

straps

120A and 120B and the ring belt body 200 can be smoothly worn on the head of the user, and the size of the closed contour can be in accordance with the head circumference of the user.

The shaft 140 passes through the opening of the bearing 170 and is sleeved on the boss 114a, and the shaft 140 has a first annular tooth 142 and a second annular tooth 144 surrounding the shaft L1, wherein the first annular tooth 142 is coupled with the belt-shaped

teeth

122A and 122B of the

laces

120A and 120B. Here, the

band teeth

122A and 122B are substantially coupled to two opposite sides of the first ring tooth 142. Thus, with the first annular tooth 142 and the

band teeth

122A, 122B engaged with each other, when the shaft 140 rotates about the axis L1, the ring teeth can move along the

band teeth

122A, 122B in the counterboring, i.e. the seat 170 and the housing 110, the shaft 140 can change the position on the

laces

120A, 120B accordingly. In contrast, if the rotating shaft 140 is in a fixed state (corresponding to the seat 170 and the housing 110 being in a fixed state), it means that the

belts

120A and 120B can be displaced relative to the rotating shaft 140 accordingly. That is, the

tethers

120A, 120B can thereby produce an effect of pulling out or retracting the outer shell 110. Referring to fig. 1 and 2, since the

fastening holes

124A and 124B are respectively formed on the

straps

120A and 120B and are coupled to the belt body 200, this means that when the

straps

120A and 120B are extended out of the shell 110, the relative distance between the shell 110 and the belt body 200 is increased, i.e., the dimension enclosed by the shell 110, the

straps

120A and 120B and the belt body 200 is increased, and when the

straps

120A and 120B are retracted into the shell 110, the relative distance between the shell 110 and the belt body 200 is shortened, i.e., the dimension enclosed by the shell 110, the

straps

120A and 120B and the belt body 200 is decreased. Accordingly, the size of the shell 110, the

straps

120A and 120B and the ring belt body 200 for covering the head of the user can be changed, thereby achieving the effect of tightness adjustment.

Fig. 4 and 5 are schematic views of a part of the components of the lace adjusting structure shown in different views. FIG. 6 is a partial schematic view of the strap adjustment structure from another perspective. Referring to fig. 6, as mentioned above, the

laces

120A, 120B are movably disposed through the bottom 173 of the seat 170, and the band-shaped

teeth

122A, 122B are coupled to the first ring-shaped teeth 142, so that the

laces

120A, 120B can move back and forth in the left and right directions in the figure, thereby achieving the effect of adjusting the

laces

120A, 120B.

However, it is a prerequisite that the adjustment action of the rotating shaft and the matching strap is performed, please refer to fig. 3 to 5, and it should be noted that the knob 130 in fig. 4 and 5 only shows a part of the structure to facilitate the matching description with the related components. In the present embodiment, the lace adjusting structure 100 further includes a first elastic element 150 abutting between the upper shell 112 of the outer shell 110 and the knob 130, and the knob 130 is movably disposed on the rotating shaft 140 along the axis L1 and rotatably sleeved on the axis L1, that is, the knob 130 can move along the rotating shaft 140 (the knob 130 and the rotating shaft 140 are coaxially sleeved with each other). Fig. 7A and 7B are schematic diagrams illustrating different states of the knob and the rotating shaft, respectively. Referring to fig. 4, fig. 7A and fig. 7B, it is noted that the knob 130 has a third annular tooth 134, which extends along the axis L1 and surrounds the axis L1 with the second annular tooth 144 of the rotating shaft 140, and the second annular tooth 144 and the third annular tooth 134 are opposite to each other. At the same time, the first elastic member 150 constantly drives the knob 130 to move toward the rotation shaft 140. In this way, the relative relationship between the knob 130 and the rotating shaft 140 can be represented in two modes as shown in fig. 7A and 7B.

In fig. 7A, the knob 130 is driven by the first elastic element 150 to move toward the rotating shaft 140, and the third annular teeth 134 and the second annular teeth 144 are engaged with each other, so that the user can rotate the knob 130 to drive the rotating shaft 140 to rotate about the axis L1, which is a prerequisite for the aforementioned adjustment operation. In fig. 7B, the knob 130 is moved by the external force F and moves the third annular tooth 134 away from the second annular tooth 144 to release each other, so that the rotating shaft 140 and the

laces

120A and 120B are in a free state, i.e. the rotating shaft 140 and the

laces

120A and 120B are adjusted to be in a relative relationship with each other by the external force.

Further, referring to fig. 2 and fig. 7B, the two can correspond to each other in the use state, as shown in the figure, when the user applies the external force F to drive the third ring gear 13 of the knob 130 to release from the second ring gear 144, since the direction of the external force F is away from the ring belt 200, that is, the user provides the external force F to the knob 130 and simultaneously applies a force to the housing 110 in a direction away from the ring belt 200, in the free state, the housing 110 can gradually move away from the ring belt 200 along with the applied external force F, and the action represents that the lace adjusting structure 100 is in a tendency of gradually increasing the size enclosed by the housing 110, the

laces

120A, 120B and the ring belt 200, so as to achieve the effect of loosening. Therefore, the user can increase the dimensions of the shell 110, the

laces

120A, 120B and the girdle 200 by only the external force F without performing an additional unbuckling operation, which is equivalent to that the shell 110, the

laces

120A, 120B and the girdle 200 can be instantly relaxed from the original state of fitting the head of the user by only the external force F.

In contrast, when the size enclosed by the housing 110, the

straps

120A, 120B and the belt body 200 is to be reduced, the applied force F needs to be removed (released), so the first elastic member 150 can drive the knob 130 to move toward the rotating shaft 140 again through the elastic force thereof, so that the third annular teeth 134 are engaged with the second annular teeth 144 again, thereby forming the aforementioned adjustment state. Here, the extending direction of the first annular tooth 142 is substantially orthogonal to the extending direction of the second annular tooth 144 and the extending direction of the third annular tooth 134, respectively.

Referring to fig. 4 to 6, it should be noted that the knob 130 further has a fourth annular tooth 132 surrounding the axis L1, and the lace adjusting structure 100 further includes

positioning members

160A and 160B movably disposed on the seat 170, wherein one end of the

positioning members

160A and 160B is pivotally connected to the seat 170 and the other end is free, so that the

positioning members

160A and 160B can rotate on the seat 170. The lace adjusting structure 100 further includes second

elastic members

180A and 180B respectively assembled on the bearing 170 (sleeved on the protruding pillar 172) and respectively abutted to the

positioning members

160A and 160B. Here, the second

elastic members

180A and 180B constantly drive the

positioning members

160A and 160B to rotate toward the knob 130, so that the latch blocks 161A and 161B of the

positioning members

160A and 160B abut against the fourth annular tooth 132. It is noted that the fourth annular tooth 132 is a one-way gear structure that surrounds the shaft L1. When the

positioning members

160A and 160B abut against the fourth annular tooth 132 (as shown in fig. 5), the fourth annular tooth 132 can rotate only in a single direction along the axis L1, and in the present embodiment, the knob 130 can rotate only in a clockwise direction due to the fourth annular tooth 132 in fig. 5. Here, the extending direction of the fourth annular tooth 132 is also orthogonal to the extending direction of the second annular tooth 144 and the extending direction of the third annular tooth 134, respectively.

Based on the above, when the knob 130 rotates clockwise in fig. 5, it drives the rotating shaft 140 to rotate clockwise, and further moves the

straps

120A and 120B and increases the overlapping area, so as to switch from the relaxed state in fig. 2 to the contracted state in fig. 1, that is, the

straps

120A and 120B are contracted into the housing 110, so as to reduce the size enclosed by the housing 110, the

straps

120A and 120B and the girdle 200, and the user can feel that the tightening operation is gradual. Accordingly, the ring belt body 200 can be smoothly sleeved and supported on the head of the user by the two operation modes of loosening and tightening of the lace adjusting structure 100. For example, the user firstly applies the external force F to loosen the dimension enclosed by the shell 110, the

straps

120A and 120B and the girdle 200, and after the user sleeves the head, the force F is released to engage the knob 130 with the rotating shaft 140, so that the shell 110, the

straps

120A and 120B and the girdle 200 can be gradually contracted by the action of rotating the knob 130, and finally the dimension enclosed by the shell 110, the

straps

120A and 120B and the girdle 200 is adapted to the head of the user.

In summary, in the above embodiments of the invention, the strap and the rotating shaft are coupled to each other through the belt-shaped teeth and the first ring-shaped teeth, so that the rotating action of the rotating shaft can cause the effect of moving along the belt-shaped teeth, thereby adjusting the position of the rotating shaft on the strap. That is, when the user applies force and drives the knob to rotate, the position of the knob on the lace can be changed, so that the user can control the movement of the lace to adjust the lace.

In other words, for the user, the external force is applied to release the knob and the ring-shaped teeth of the rotating shaft from each other, and the direction of the external force deviates from the ring-shaped belt body, so that the user can smoothly move the shell away from the ring-shaped belt body along the direction of the external force, and the size enclosed by the shell, the lace and the ring-shaped belt body is enlarged to achieve the state of being relaxed. In contrast, once the relaxed structure is fitted to the head of the user, the knob can be rotated by releasing the external force, and at this time, the knob can only be rotated in a single direction due to the unidirectional structure of the ring-shaped teeth of the knob and the positioning member, and the strap can be gradually increased in the overlapped portion due to the rotation in the single direction due to the belt-shaped teeth of the strap, so that the size surrounded by the housing, the strap and the belt body can be reduced, and the tightening state can be generated until the housing, the strap and the belt body can be smoothly supported on the head of the user to be used.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A strap adjustment structure, comprising:

a lace having a band-shaped tooth;

a shaft having a first annular tooth and a second annular tooth surrounding an axis, wherein the first annular tooth is coupled to the band-shaped teeth such that the shaft moves on the tether by rotating along the axis;

a knob rotatable along the shaft and movably coupled to the shaft along the shaft, the knob having a third annular tooth coupled to or released from the second annular tooth as the knob moves along the shaft, the knob adapted to be synchronously driven to rotate by an external force when the third annular tooth is engaged with the second annular tooth;

the bearing seat is movably arranged on the lacing belt, the rotating shaft and the knob are rotatably arranged on the bearing seat, and the position of the bearing seat on the lacing belt is changed by the rotation of the rotating shaft;

the rotating shaft and the knob are movably assembled in the shell, the bearing seat is assembled in the shell, a part of the knob is exposed out of the shell, the lace is movably arranged in the shell in a penetrating way, and the shell moves relative to the lace along with the bearing seat; and

the first elastic piece is abutted between the shell and the knob and constantly drives the knob to move towards the rotating shaft so that the third annular teeth are meshed with the second annular teeth.

2. The lace adjustment structure of claim 1 further comprising:

the positioning piece is movably arranged on the bearing seat; and

the second elastic piece is assembled on the bearing seat and abutted against the positioning piece, and constantly drives the positioning piece to move towards the knob and abutted against a fourth annular tooth of the knob.

3. The strap adjusting structure of claim 2 wherein the fourth annular tooth is a one-way gear structure that encircles the shaft, the fourth annular tooth only rotating in a single direction about the shaft when the positioning element abuts the fourth annular tooth.

4. The lace adjustment structure of claim 1 further comprising:

the bearing seat is arranged on the annular belt body, one end of the belt is fixed on the annular belt body, the belt-shaped teeth are arranged at the other end of the belt, and the position of the bearing seat on the belt-shaped teeth is changed by rotating the rotating shaft so as to adjust the relative distance between the shell and the annular belt body.

5. The strap adjustment structure of claim 4 wherein the knob is adapted to move along the shaft in a direction to release the third looped tooth from the second looped tooth, the direction facing away from the strap body.

6. The strap adjustment structure of claim 4 wherein said loop body is a headband.

7. The strap adjustment structure of claim 4 wherein said strap is flexible to conform to the contours of said strap body and said housing.

8. The strap adjustment structure of claim 1 wherein said knob is coaxially sleeved together with said spindle.