adjusting device

Abstract

An adjustment device includes a base, a ratchet assembly, and a fixing rod. The base includes a receiving groove and a plurality of ratchet teeth disposed on the inner sidewall of the receiving groove. The ratchet assembly is rotatably received in the receiving groove and includes a body, a spring arm, and a pawl. The spring arm is disposed on one side of the body and includes a first connecting section and a second connecting section. The first connecting section is connected to the body. The second connecting section is connected to the pawl, which is adapted to engage one of the plurality of ratchet teeth. The fixing rod is movably disposed between the body and the spring arm of the ratchet assembly. When the fixing rod is located between the second connecting section and the body, the pawl is fixed to the ratchet teeth, causing the ratchet assembly to be positioned on the base. When the fixing rod is located between the first connecting section and the body, the ratchet assembly is adapted to rotate relative to the base. Thus, the adjustment device of this embodiment can move the fixing rod to allow the ratchet assembly to be in a rotatable or positioned state.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an adjusting device, and in particular, to an adjusting device that can be used to adjust tightness and locking. BACKGROUND

[0002] Currently, head-mounted display devices are becoming increasingly popular, and various types of wearing structures are becoming more diversified. For example, a band-shaped structure of an elastic band is used to stretch the elasticity of the elastic band itself to adapt to different head sizes. There is also a fixed band without elasticity, which uses an adjusting device to adjust the fixed band to adapt to different head sizes. For example, the adjusting structure is connected to both ends of the fixed band, and the adjusting device is adjusted to tighten or loosen the distance between the fixed bands to adjust the tightness of the fixed band when worn, so as to meet the tightness required for more different sizes of head or more different wearing positions.

[0003] However, most adjusting devices use tight fitting or complex gear assemblies to achieve the effect of limiting and fixing. However, this method will make the entire structure larger or thicker, and will also increase the weight of the overall structure, so that when applied to a head-mounted display device, the weight of the device worn on the head is increased, or the entire device becomes too large. SUMMARY

[0004] According to the purpose of the present disclosure, an adjusting device is provided to solve at least one of the above problems.

[0005] In view of the above, in one embodiment of the present disclosure, an adjusting device includes a base, a ratchet assembly, and a fixing rod. The base includes a receiving groove and a plurality of ratchet teeth, and the plurality of ratchet teeth are arranged on the inner side wall of the receiving groove. The ratchet assembly is rotatably received in the receiving groove and includes a body, a spring arm, and a pawl. The spring arm is arranged on one side of the body and includes a first connecting segment and a second connecting segment connected to each other. The first connecting segment is connected to the body. The second connecting segment is connected to the pawl, and the pawl is adapted to engage the plurality of ratchet teeth. The fixing rod is movably arranged between the body and the spring arm of the ratchet assembly. When the fixing rod is located between the second connecting segment and the body, the pawl is fixed to one of the plurality of ratchet teeth, so that the ratchet assembly is positioned on the base. When the fixing rod is located between the first connecting segment and the body, the ratchet assembly is adapted to rotate relative to the base.

[0006] According to one embodiment of the present disclosure, the adjusting device further includes a knob connected to the base and connected to the ratchet assembly. The knob includes a guide hole having a first end and a second end. The fixing rod is movably arranged in the guide hole. When the fixing rod moves between the second connecting segment and the body, the fixing rod is located at the first end of the guide hole. When the fixing rod moves between the first connecting segment and the body, the fixing rod is located at the second end of the guide hole.

[0007] According to one of the embodiments of the present disclosure, the guide hole has at least one curved portion between the first end and the second end.

[0008] According to one of the embodiments of the present disclosure, the fixing rod further comprises a ring protrusion, which is arranged adjacent to the knob, and the diameter of the ring protrusion is greater than the width of the guide hole.

[0009] According to one of the embodiments of the present disclosure, the adjusting device further comprises an elastic element, one end of which is connected to the knob and the other end of which is connected to the fixing rod.

[0010] According to one of the embodiments of the present disclosure, the adjusting device further comprises a stopper, which is fixed to the knob, and the elastic element is clamped between the knob and the stopper.

[0011] According to one of the embodiments of the present disclosure, the stopper comprises a limiting hole, and the fixing rod further passes through the limiting hole.

[0012] According to one of the embodiments of the present disclosure, the fixing rod further comprises a protrusion, which is located between the knob and the stopper, and the other end of the elastic element is located between the protrusion and the knob.

[0013] According to one of the embodiments of the present disclosure, the first connecting section has a first spacing with the body, and the second connecting section has a second spacing with the body, and the first spacing is greater than the second spacing.

[0014] According to one of the embodiments of the present disclosure, the ratchet assembly further comprises a gear, which is connected to the body and protrudes from the base through the accommodating groove.

[0015] Therefore, the adjusting device of the embodiment of the present disclosure can make the ratchet assembly in a rotatable state or a positioning state by moving the fixing rod. When the fixing rod is moved to be located between the first connecting section and the body, the ratchet assembly is in the rotatable state. When the fixing rod is moved from between the first connecting section and the body to between the second connecting section and the body, the pawl is fixed to the ratchet tooth, so that the ratchet assembly is positioned on the base and cannot be driven, and the ratchet assembly is in a locked state. In this way, by using the fixing rod that can pass through the ratchet assembly, the original structure space can be used, and the overall structure thickness does not need to be increased for the anti-rotation structure. Moreover, the fixing rod is simpler than the complex gear assembly and is convenient to operate, so that the user can intuitively and simply operate the anti-rotation structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a schematic view of the adjusting device and the fixing belt of the embodiment of the present disclosure.

[0017] Figure 2 The figure is an exploded schematic view of the adjusting device of the embodiment of the present disclosure.

[0018] Figure 3Front view of an adjustment device for fixing a rod in a rotational position and omitting part of the components for an embodiment of the present disclosure.

[0019] Figure 4 Schematic view of an adjustment device for fixing a rod in a rotational position and omitting a knob for an embodiment of the present disclosure.

[0020] Figure 5 Schematic view of an adjustment device for fixing a rod in a rotational position and a fixing band for an embodiment of the present disclosure.

[0021] Figure 6 Front view of an adjustment device for fixing a rod in a rotational position and omitting part of the components for an embodiment of the present disclosure.

[0022] Figure 7 Schematic view of an adjustment device for fixing a rod in a rotational position and omitting a knob for an embodiment of the present disclosure.

[0023] Reference signs are as follows:

[0024] 100: adjustment device

[0025] 10: base

[0026] 11: accommodating groove

[0027] 111: inner side wall

[0028] 112: perforation

[0029] 12: ratchet

[0030] 20: ratchet assembly

[0031] 21: body

[0032] 211: convex stop

[0033] 22: elastic arm

[0034] 221: first connecting section

[0035] 222: second connecting section

[0036] 23: pawl

[0037] 24: gear

[0038] 30: knob

[0039] 31: guide hole

[0040] 311: first end portion

[0041] 312: second end portion

[0042] 313: curved portion

[0043] 32: convex post

[0044] 40: Fixed rod

[0045] 41: First end

[0046] 42: Second end

[0047] 43: Ring protrusion

[0048] 44: Bump

[0049] 50: Elastic element

[0050] 60: Stop plate

[0051] 61: Limiting hole

[0052] 90: Fixing strap

[0053] D1: First spacing

[0054] D2: Second spacing Detailed Implementation

[0055] The following embodiments are described in detail; however, these embodiments are merely illustrative and do not limit the scope of protection intended by this disclosure. Furthermore, some elements are omitted from the accompanying drawings in the embodiments to clearly show the technical features of this disclosure. The same reference numerals will be used to denote the same or similar elements in all the drawings.

[0056] Figure 1 This is a schematic diagram of an adjustment device and a fixing strap for fixing the rod in a rotating position according to an embodiment of the present disclosure. Figure 2 This is an exploded view of an adjustment device according to an embodiment of the present disclosure. Figure 3 This is a front view of an adjustment device with a fixed rod in a rotating position according to an embodiment of the present disclosure, with some components omitted. Figure 4 This is a schematic diagram of an adjustment device that fixes the rod in a rotating position and omits the knob, according to an embodiment of the present disclosure. Figure 5 This is a schematic diagram of an adjustment device and a fixing strap for fixing the rod in the anti-rotation position according to an embodiment of the present disclosure. Figure 6 This is a front view of an adjustment device according to an embodiment of the present disclosure, in which the rod is fixed in the anti-rotation position and some components are omitted. Figure 7 This is a schematic diagram of an adjustment device in which the rod is fixed in the anti-rotation position and the knob is omitted, according to an embodiment of the present disclosure.

[0057] Please see Figures 1-2 In this embodiment, the adjustment device 100 includes a base 10, a ratchet assembly 20, and a fixing rod 40. Figure 1 As can be seen, the two fixing straps 90 can be inserted into the base 10 of the adjusting device 100. By rotating the ratchet assembly 20, the relative position between the two fixing straps 90 can be adjusted, so that the two fixing straps 90 are closer to or further apart from each other.

[0058] The base 10 includes a receiving groove 11 and a plurality of ratchet teeth 12, the ratchet teeth 12 being disposed on the inner sidewall 111 of the receiving groove 11. The ratchet assembly 20 is rotatably received in the receiving groove 11 of the base 10. Figures 2-7 As can be seen, the ratchet assembly 20 includes a body 21, two spring arms 22, and two pawls 23. Each spring arm 22 is disposed on one side of the body 21; in this embodiment, the two spring arms 22 are located on opposite sides of the body 21. Each spring arm 22 includes a first connecting segment 221 and a second connecting segment 222 connected together. The first connecting segment 221 connects the body 21 and the second connecting segment 222. The second connecting segment 222 connects the first connecting segment 221 and the pawls 23. The pawls 23 are adapted to engage with a plurality of ratchet teeth 12.

[0059] In this embodiment, the ratchet assembly 20 is exemplified by having two spring arms 22 and two pawls 23 located on opposite sides of the body 21. In other embodiments, only one spring arm 22 and one pawl 23 may be provided on one side of the body 21, which can also achieve the operation of the ratchet assembly 20. The pawl 23 connected to the second connecting section 222 of the spring arm 22 can move along the ratchet 12 and engage with the ratchet 12 through the elastic force of the spring arm 22, so as to provide temporary positioning and operation feel. In detail, the pawl 23 and the multiple ratchet 12 can provide the operation feel of the user during operation through the ratchet actuation principle, and provide the function of temporary positioning when the two fixing straps 90 are brought closer or further apart. This makes it convenient for the user to move the fixing rod 40 to the ratchet assembly 20 in a rotatable or fixed state. There is no need to worry that once the fixing rod 40 is moved to the rotatable state of the ratchet assembly 20, the two fixing straps 90 will immediately move away from each other.

[0060] Depend on Figure 1 and Figure 3 As can be seen, the fixing rod 40 is movably inserted between the body 21 of the ratchet assembly 20 and the spring arm 22. For example... Figures 5-7 As shown, when the fixing rod 40 is located between the second connecting section 222 and the body 21, the pawl 23 is fixed to one of the ratchet teeth 12, causing the ratchet assembly 20 to be positioned on the base 10, thus locking the ratchet assembly 20. For example... Figures 1-4 As shown, when the fixing rod 40 is located between the first connecting section 221 and the body 21, the ratchet assembly 20 is adapted to rotate relative to the base 10, so that the ratchet assembly 20 is in a rotatable state.

[0061] Thus, the adjusting device 100 can move the fixed rod 40 to make the ratchet assembly 20 in the rotatable state or the locked state. When the adjustment of the fixing belt 90 is needed, the fixed rod 40 is only needed to be moved to the first connecting section 221 and the body 21, and the ratchet assembly 20 is in the rotatable state. When the fixing belt 90 is adjusted to the required tightness, the fixed rod 40 is moved to the second connecting section 222 and the body 21, and the ratchet assembly 20 is in the locked state. Thus, the relative movement of the fixing belt 90 in the use process after the adjustment of the relative position can be avoided. Furthermore, the fixed rod 40 can be used to wear the ratchet assembly 20, and the original structure space can be used without increasing the overall structure thickness for increasing the rotation stopping structure. Moreover, the fixed rod 40 is simpler and more convenient to operate than the complicated gear assembly for locking, and the user is more intuitive and simple to operate the rotation stopping.

[0062] As shown in Figure 1 and Figure 2 , in the embodiment, the adjusting device 100 further includes a knob 30 arranged to the base 10 and connected to the body 21 of the ratchet assembly 20 to drive the ratchet assembly 20. The fixed rod 40 includes opposite first and second ends 41 and 42, the first end 41 passes through and protrudes out of the knob 30, and the second end 42 passes through the ratchet assembly 20. Figure 1 It can be seen that the first end 41 of the fixed rod protrudes out of the outer surface of the knob 30 to facilitate the user to move the fixed rod 40. In addition, as can be seen from Figure 1 , the knob 30 includes a guide hole 31. The guide hole 31 has first and second end portions 311 and 312. In the embodiment, the guide hole 31 is hook-shaped, that is, the guide hole 31 has two bending portions 313 between the first and second end portions 311 and 312, as shown in Figure 5 . In other embodiments, the guide hole 31 can have only one bending portion 313 between the first and second end portions 311 and 312, and be in the shape of an inverted L. The first end 41 of the fixed rod 40 is movably arranged in the guide hole 31. In detail, as shown in Figure 1 , when the second end 42 of the fixed rod 40 is located between the first connecting section 221 and the body 21, the first end 41 of the fixed rod 40 is located at the second end portion 312 of the guide hole 31. As shown in Figure 4 and Figure 5 , when the second end 42 of the fixed rod 40 is moved to the second connecting section 222 and the body 21, the first end 41 of the fixed rod 40 is located at the first end portion 311 of the guide hole 31.

[0063] Thus, when the fixing rod 40 is operated to move, through the one or more bending portions 313, the fixing rod 40 can be prevented from being moved to another position by accident during use. For example, when the fixing rod 40 is moved to the second end portion 312, the user rotates the knob 30 to drive the ratchet assembly 20, the fixing rod 40 can be limited by the bending portion 313, so that the fixing rod 40 cannot be easily moved from the second end portion 312 to the first end portion 311.

[0064] In addition, the fixing rod 40 further includes a ring protrusion 43 located between the first end 41 and the second end 42 and adjacent to the knob 30, and the diameter of the ring protrusion 43 is greater than the width of the guide hole 31. The ring protrusion 43 can abut against the inner surface of the knob 30 to prevent the user from accidentally pulling out the fixing rod 40 during operation. Figure 2

[0065] In the embodiment, as shown in Figure 2 , Figure 3 the inner side of the knob 30 has a plurality of protrusions 32 arranged on the outer circumference of the body 21 to drive the body 21. Taking the upper arm 22 as an example, two protrusions 32 are arranged on the outer side of the first connecting section 221 and the second connecting section 222 of the upper arm 22, respectively. When the knob 30 is rotated counterclockwise, the protrusion 32 on the outer side of the first connecting section 221 pushes the first connecting section 221, and the protrusion 32 on the outer side of the second connecting section 222 pushes the second connecting section 222 to move downward in the drawing.

[0066] In addition, the body 21 can have a protrusion 211 adjacent to the first connecting section 221. When the knob 30 is rotated clockwise, the protrusion 32 on the outer side of the first connecting section 221 will move to abut against the protrusion 211, thereby driving the body 21 to rotate clockwise. At this time, since the first connecting section 221 and the body 21 do not have the fixing rod 40 therebetween, the second connecting section 222 can move downward smoothly, so that the pawl 23 can smoothly pass through the more protruding part of the ratchet tooth 12 and fall into another ratchet tooth 12.

[0067] Next, as shown in Figure 2 , Figure 3 , Figure 6 the adjusting device 100 of the embodiment can further include a resilient element 50 connected to one end of the knob 30 and to the other end of the fixing rod 40. In the embodiment, the resilient element 50 is a tension spring. As shown in Figure 1 , 3 ​As shown, when the first end 41 of the fixing rod 40 is located at the second end portion 312 of the guide hole 31, the elastic element 50 will be pulled open to generate a restoring force, thereby causing the first end 41 of the fixing rod 40 to be fastened against the second end portion 312 of the guide hole 31, so as to prevent the fixing rod 40 from moving away from the second end portion 312 of the guide hole 31 during the rotation of the knob 30. Once the fixing rod 40 is operated to move through all the curved portions 313 and enter the straight segment, the fixing rod 40 will be pulled to the first end portion 311 of the guide hole 31 under the action of the restoring force of the elastic element 50, and quickly enter the stop rotation position as shown. Figure 6 As shown, the second end portion 312 of the guide hole 31 is provided with a stop rotation position.

[0068] In addition, as shown in the figure, the adjusting device 100 can further include a stop piece 60 fixed to the knob 30, and the elastic element 50 is clamped between the knob 30 and the stop piece 60. Figure 2 It can be seen that the adjusting device 100 of the embodiment can further include a stop piece 60 fixed to the knob 30, and the elastic element 50 is clamped between the knob 30 and the stop piece 60. The stop piece 60 can be assembled to the knob 30 after the fixing rod 40 and the elastic element 50 are assembled to the knob 30. The stop piece 60 can be further adhered to the knob 30 by heat welding or adhesive, etc. Alternatively, a structure capable of being buckled relative to each other can be provided on the knob 30 and the stop piece 60, so that the stop piece 60 can be detached when needed. The stop piece 60 can limit the movement possibility of the elastic element 50 in the vertical direction of the paper, so as to prevent the elastic element 50 from being separated from the knob 30.

[0069] In the embodiment, the stop piece 60 includes a limiting hole 61, and the fixing rod 40 is further provided through the limiting hole 61. Figures 1-4 It can be seen that the shape of the limiting hole 61 is the same as that of the guide hole 31, and the limiting hole 61 is arranged parallel to the guide hole 31. The fixing rod 40 is provided through the guide hole 31 and the limiting hole 61, and the movement of the fixing rod 40 can be more stable through the limiting of the guide hole 31 and the limiting hole 61, and excessive inclination or rotation can be avoided.

[0070] In addition, as shown in the figure, the adjusting device 100 can further include a stop piece 60 fixed to the knob 30, and the elastic element 50 is clamped between the knob 30 and the stop piece 60. Figure 2 It can be seen that the adjusting device 100 of the embodiment can further include a stop piece 60 fixed to the knob 30, and the elastic element 50 is clamped between the knob 30 and the stop piece 60. The stop piece 60 can be assembled to the knob 30 after the fixing rod 40 and the elastic element 50 are assembled to the knob 30. The stop piece 60 can be further adhered to the knob 30 by heat welding or adhesive, etc. Alternatively, a structure capable of being buckled relative to each other can be provided on the knob 30 and the stop piece 60, so that the stop piece 60 can be detached when needed. The stop piece 60 can limit the movement possibility of the elastic element 50 in the vertical direction of the paper, so as to prevent the elastic element 50 from being separated from the knob 30.

[0071] In the embodiment, as shown in the figure, the second connecting segment 222 has a second spacing D2 with the body 21. Figure 3 As shown in the figure, the first connecting segment 221 has a first spacing D1 with the body 21, and the first spacing D1 is greater than the second spacing D2. Figure 6 As shown in the figure, the first connecting segment 221 has a first spacing D1 with the body 21, and the first spacing D1 is greater than the second spacing D2.

[0072] As shown in the figure, the first connecting segment 221 has a first spacing D1 with the body 21, and the first spacing D1 is greater than the second spacing D2. Figure 3and Figure 4 As can be seen, when the second end 42 of the fixing rod 40 is located at the first distance D1, the spring arm 22 will not be stopped during movement, allowing the ratchet assembly 20 to be in a rotatable state. Figures 5-7 As can be seen, when the second end 42 of the fixing rod 40 is located at the second distance D2, the spring arm 22 will be stopped by the fixing rod 40 during the movement, so that the ratchet assembly 20 is in a locked state.

[0073] Additionally, please see Figure 2 The ratchet assembly 20 may also include a gear 24 connected to the body 21 and protruding from the base 10 through the receiving groove 11. In this embodiment, the gear 24 passes through the through hole 112 in the middle of the receiving groove 11 and is attached to the two fixing straps 90. Thus, when the body 21 is driven to rotate, the gear 24 is also driven to rotate simultaneously. By rotating clockwise or counterclockwise, the ends of the two fixing straps 90 are moved closer or further away, thereby adjusting the tension of the fixing straps 90.

[0074] Therefore, the adjustment device 100 of this embodiment can move the fixed rod 40 to put the ratchet assembly 20 into a rotatable or fixed state. When adjusting the fixing strap 90 that passes through the base 10, it is only necessary to move the fixed rod 40 to a position between the first connecting section 221 and the body 21, and the ratchet assembly 20 will be in a rotatable state. After the fixing strap 90 has been adjusted to the required tightness, the fixed rod 40 can be moved to a position between the second connecting section 222 and the body 21, and the pawl 23 is fixed to the ratchet tooth 12, so that the ratchet assembly 20 is positioned in the base 10 and cannot be driven, thus locking the ratchet assembly 20. In this way, the fixing strap 90 can be prevented from coming loose during use after the tightness adjustment is completed. Furthermore, by using the fixed rod 40 that can pass through the ratchet assembly 20, the original structural space can be utilized without increasing the overall structural thickness to add an anti-rotation structure, and the operation of the anti-rotation structure is more intuitive and convenient for the user.

Claims

1. An adjustment device, characterized in that, include: A base includes a receiving groove and a plurality of ratchet teeth, wherein the plurality of ratchet teeth are disposed on an inner sidewall of the receiving groove; A ratchet assembly is rotatably housed in the receiving slot and includes a body, a spring arm, and a pawl. The spring arm is disposed on one side of the body and includes a first connecting segment and a second connecting segment connected to each other. The first connecting segment is connected to the body, and the second connecting segment is connected to the pawl. The pawl is adapted to engage with a plurality of said ratchet teeth. as well as A fixed rod is movably inserted between the body and the spring arm of the ratchet assembly. When the fixed rod is located between the second connecting section and the body, the pawl is fixed to one of the plurality of ratchet teeth, causing the ratchet assembly to be positioned on the base. When the fixed rod is located between the first connecting section and the body, the ratchet assembly is adapted to rotate relative to the base. The device also includes a knob, which is assembled to the base and connected to the ratchet assembly. The knob includes a guide hole having a first end and a second end. A fixing rod is movably inserted into the guide hole. When the fixing rod moves between the second connecting section and the body, the fixing rod is located at the first end of the guide hole. When the fixing rod moves between the first connecting section and the body, the fixing rod is located at the second end of the guide hole.

2. The adjustment device as described in claim 1, characterized in that, The guide hole has at least one bend between its first end and its second end.

3. The adjustment device as described in claim 1, characterized in that, The fixing rod also includes a ring protrusion, which is disposed adjacent to the knob, and the diameter of the ring protrusion is larger than the width of the guide hole.

4. The adjustment device as described in claim 1, characterized in that, It also includes an elastic element, one end of which is connected to the knob and the other end of which is connected to the fixing rod.

5. The adjustment device as described in claim 4, characterized in that, It also includes a stop plate fixed to the knob, and the elastic element is sandwiched between the knob and the stop plate.

6. The adjustment device as described in claim 5, characterized in that, The stop plate includes a limiting hole through which the fixing rod passes.

7. The adjustment device as described in claim 5, characterized in that, The fixing rod also includes a protrusion located between the knob and the stop plate, and the other end of the elastic element is located between the protrusion and the knob.

8. The adjustment device as described in claim 1, characterized in that, The first connecting segment has a first gap with the body, and the second connecting segment has a second gap with the body. The first gap is greater than the second gap.

9. The adjusting device as described in claim 1, characterized in that, The ratchet assembly also includes a gear that connects to the body and protrudes from the base through the receiving groove.

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