Side wing adjustment mechanism and adjustable passenger device

Abstract

A side wing adjusting mechanism and an adjustable passenger device, wherein the side wing adjusting mechanism comprises: a bolt arranged on a headrest; and a chute arranged on a side wing, at least a part of the chute gradually decreases in distance from a longitudinal center axis of the backrest in a direction extending from below to above along the longitudinal center axis of the backrest towards the headrest, and the bolt can slide up and down along the chute. According to the side wing adjusting mechanism and the adjustable passenger device comprising the same, the side wing can be arbitrarily folded and unfolded through the side wing adjusting mechanism, the structure is more inclusive, the headrest can be pulled or the side wing can be pushed more smoothly and labor-savingly during the unfolding and folding of the side wing, the side wing can be prevented from being skewed and stuck during the unfolding and folding, and the unfolding and folding of the side wing is more smooth.

Description

Technical Field

[0001] This application relates to a side wing adjustment mechanism and an adjustable passenger device including the side wing adjustment mechanism. Background Technology

[0002] Child safety seats are devices designed specifically for children of different sizes and ages. While riding in a car, children are restrained in the safety seat, which reduces the impact force on the child and restricts the child's body movement in the event of a car collision or sudden deceleration, thereby reducing the risk of injury and effectively improving the safety of children riding in cars.

[0003] The main structure of a child safety seat typically includes a headrest to support the child's head, a backrest to support the child's back, and the seat itself. Generally, the headrest can slide up and down relative to the backrest to accommodate different children's needs. Furthermore, with market demand and technological innovation, and also to reduce the impact on children in traffic accidents and improve the safety and comfort of child safety seats, more and more child safety seats are beginning to incorporate side wings on both sides of the backrest to create a safer and more comfortable enclosed space.

[0004] However, the side wings in existing technologies are usually fixed and cannot be adjusted with the headrest height. This means that for children of different ages and sizes, the fixed side wings cannot provide a more comfortable fit, thus reducing safety. Furthermore, when the child safety seat is not in use and needs to be stored, or during transportation, the outward-extending side wings take up more space, causing inconvenience. Moreover, the side wings need to be folded during pre-shipment testing, making it essential to improve existing child safety seats where the side wings cannot be easily folded and unfolded. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a side wing adjustment mechanism and an adjustable passenger vehicle including the side wing adjustment mechanism, wherein the side wings can be folded and opened at will by means of the side wing adjustment mechanism to meet the requirements of the adjustable passenger vehicle in terms of safety, comfort and testing.

[0006] Therefore, according to one aspect of this application, a side wing adjustment mechanism is provided for adjusting the height of the headrest relative to the backrest and the opening distance of the side wing. The side wing adjustment mechanism includes: a pin disposed on the headrest; and a groove disposed on the side wing. In a direction extending from bottom to top toward the headrest along the longitudinal central axis of the backrest, at least a portion of the groove is gradually spaced away from the longitudinal central axis, and the pin can slide up and down along the groove.

[0007] Preferably, a straight sliding groove is provided below the inclined groove, and the lower part of the inclined groove is connected to the straight sliding groove, and the pin can slide up and down in the straight sliding groove.

[0008] Preferably, the side wing adjustment mechanism further includes a return member, which is pivotally connected to the side wing.

[0009] Preferably, the return member is U-shaped in general, with the bottom end of the U-shape being the first end, the pin being sleeved on the first end and able to slide along the U-shape of the return member, the open end of the U being the second end, and the second end being pivotally connected to the side wing.

[0010] Preferably, the side wing adjustment mechanism further includes a spring connected between the side wing and the return member.

[0011] Preferably, the side wing adjustment mechanism further includes a spring positioning element disposed on the side wing for positioning the spring.

[0012] Preferably, there are two pins, and correspondingly, there are also two inclined slots and two return components. The two pins, the two inclined slots, and the two return components are symmetrically distributed with respect to the longitudinal central axis.

[0013] Preferably, the side wing adjustment mechanism further includes a drive rod, which is used to actuate the two pins.

[0014] Preferably, the drive rod is U-shaped, with its two ends connected to the two pins respectively.

[0015] According to another aspect of this application, an adjustable passenger device is provided, comprising: a headrest; a backrest, the headrest being slidably disposed on the backrest; side wings connected to the backrest; and a side wing adjustment mechanism as described above.

[0016] Preferably, the backrest is provided with an upper slider, and the side wing is provided with an upper sliding groove, and the upper slider can slide in the upper sliding groove.

[0017] Preferably, there are two upper sliders and two upper sliding grooves, and they are symmetrically arranged along the longitudinal central axis of the back.

[0018] Preferably, the backrest is further provided with a sliding block, and the side wing is further provided with a sliding groove, and the sliding block can slide in the sliding groove.

[0019] Preferably, a sliding block is provided on the backrest, and a sliding groove is provided on the side wing, wherein the sliding block is slidably disposed in the sliding groove.

[0020] Preferably, there are two lower sliders and two lower grooves, and they are symmetrically arranged along the longitudinal central axis of the back.

[0021] Preferably, the lower slider is in the form of a connecting rivet, and the lower groove is in the form of a connecting elongated groove.

[0022] According to the side wing adjustment mechanism of this application and the adjustable passenger device including the side wing adjustment mechanism, the side wings can be folded and opened at will through the side wing adjustment mechanism. Moreover, the structure of this application is more inclusive. During the opening and folding of the side wings, the headrest or side wings can be pulled more smoothly and effortlessly, which can avoid the side wings from tilting and getting stuck during the opening and folding process, making the opening and folding process of the side wings smoother. Attached Figure Description

[0023] The accompanying drawings are included herein to provide a further understanding of the invention and are incorporated in and form a part of this specification. The drawings illustrate embodiments of the invention and, together with the following description, serve to illustrate the concept of the invention.

[0024] In the attached diagram:

[0025] Figure 1 This is a frontal schematic diagram showing the structure of the child safety seat according to this application;

[0026] Figure 2 This is a schematic diagram showing the rear of the structure of the child safety seat according to this application, wherein the headrest is in the unraised state and the side wings are in the undeployed state;

[0027] Figure 3 This is a schematic diagram showing the rear of the structure of the child safety seat according to this application, wherein the headrest is in the raised position and the side wings are in the deployed position; and

[0028] Figure 4 and Figure 5 This is a schematic diagram showing the specific structure of the side wing adjustment mechanism of the child safety seat according to this application. Figure 4 and Figure 5 The different adjustment positions are shown in the diagram.

[0029] List of reference numerals in the attached diagram:

[0030] 1: Child safety seat

[0031] 10: Headrest

[0032] 20: Backrest

[0033] Upper slider 22, lower slider 26, longitudinal center axis S

[0034] 30: Flanking

[0035] Upper groove 32 Lower groove 36

[0036] 40: Side wing adjustment mechanism

[0037] Pin 42

[0038] Inclined groove 44

[0039] Straight Slide 43

[0040] Return piece 45 first end 451 second end 452

[0041] Spring 47

[0042] Spring positioning component 48

[0043] Drive lever 49

[0044] 50: Seating section Detailed Implementation

[0045] In the following, exemplary embodiments will be described in detail with reference to the accompanying drawings. Although this disclosure is open to various modifications and alternatives, specific embodiments thereof are shown by way of example in the drawings. However, this disclosure should not be construed as limiting itself to the embodiments set forth herein, but rather, this disclosure is intended to cover all modifications, equivalents, and alternatives that fall within the spirit and scope of the embodiments.

[0046] The detailed description below primarily refers to child safety seats; however, the side wing adjustment mechanism of this application can also be applied to other applications, such as various strollers and high chairs. The side wing adjustment mechanism of this application allows for smooth and effortless adjustment of the side wing width, avoiding tilting and jamming during adjustment.

[0047] The side wing adjustment mechanism and adjustable passenger device according to this application will be described in detail below with reference to the accompanying drawings. The following embodiments are illustrated using a child safety seat as an example of an adjustable passenger device, but this structure can also be applied to other passenger devices, such as sofas, seat cushions, office chairs, etc.

[0048] First refer to Figure 1 As shown, the Figure 1 This is a frontal schematic diagram showing the structure of a child safety seat 1 according to this application. The child safety seat 1 mainly includes a headrest 10 and a backrest 20, wherein the headrest 10 is slidably disposed on the backrest 20. In addition, side wings 30 are connected to both sides of the backrest 20. The lower end of the backrest 20 is connected to the seat portion 50. The headrest 10, backrest 20, seat portion 50 and the side wings 30 form a space for the user to sit in, so as to provide the user with safety and comfort while riding in the vehicle.

[0049] As mentioned above, in order to meet the comfort and safety needs of users of different body types and to meet the requirements of pre-shipment testing of child safety seats, the side wings 30 of the child safety seat 1 according to this application can be folded and unfolded as needed. Please refer to [link / reference] for details. Figure 2 and Figure 3 As shown, where, Figure 2 This is a schematic diagram showing the rear of the structure of the child safety seat 1 according to this application, wherein the headrest 10 is in the unraised state and the side wings 30 are in the undeployed state, at which point the child safety seat 1 has the smallest volume; while Figure 3 This is a schematic diagram showing the rear of the structure of the child safety seat 1 according to this application, wherein the headrest 10 is in the raised state, and as the headrest 10 is raised, the side wings 30 are correspondingly deployed, at which time the child safety seat 1 is at its largest volume. An upper slider 22 is provided above the back of the backrest 20, such as... Figure 2 and Figure 3 As shown, the upper slider 22 is arranged symmetrically with respect to the longitudinal central axis S of the back 20. Correspondingly, an upper sliding groove 32 is provided on the upper side of the side wing 30 at a position corresponding to the upper slider 22. The upper sliding groove 32 is also preferably arranged symmetrically with respect to the longitudinal central axis S of the back 20. Of course, other arrangements are also feasible.

[0050] The following explanation uses one side of the central axis S as an example. During the unfolding process of the side wing 30 in response to the raising of the headrest 10, the upper slider 22 slides within the upper groove 32 to guide the opening movement of the side wing 30. Figure 2 In the folded state of the side wing 30 shown in the diagram, the upper slider 22 is located at the leftmost end of the upper groove 32, while... Figure 3 With the side wing 30 in the open state shown, the upper slider 22 is located at the rightmost end of the upper slide groove 32.

[0051] In addition, a sliding block 26 is also provided on the backrest 20, in Figure 3 In the example shown, the sliding block 26 is positioned on the lower side of the backrest 20. Correspondingly, the side wing 30 is provided with a sliding groove 36, in which the sliding block 26 can slide slidably, thereby guiding the folding and opening of the side wing 30 and making its movement smoother. Based on the illustrated embodiment, both the sliding block 26 and the sliding groove 36 are provided in pairs, and both are symmetrically arranged along the longitudinal central axis S of the backrest 20. In the preferred embodiment shown in the attached figures, the sliding block 26 can be in the form of a connecting rivet 26, and correspondingly, the sliding groove 36 can be in the form of a connecting elongated groove, so that the connecting rivet can slide in the connecting elongated groove, thereby guiding the opening and folding movement of the side wing 30. Of course, other forms of sliding blocks and sliding grooves are also feasible.

[0052] The following sections will be referenced. Figure 4 and Figure 5 Specifically, according to the structure of the flank adjustment mechanism 40 in this application, wherein... Figure 4 and Figure 5 This is a schematic diagram showing the specific structure of the side wing adjustment mechanism 40 of the child safety seat 1 according to this application. Figure 4 and Figure 5 Different adjustment positions are shown in the figure. The side wing adjustment mechanism 40 according to this application mainly includes a pin 42 disposed on the headrest 10 and a groove 44 disposed on the side wing 30. In a direction extending upwards towards the headrest 10 along the longitudinal central axis S of the backrest 20, at least a portion of the groove 44 gradually decreases in distance from the longitudinal central axis S, and the pin 42 can slide up and down along the groove 44. In the embodiment shown in the figure, a straight slide 43 is connected to the lower portion of the groove 44, and the straight slide 43 communicates with the lower portion of the groove 44. The upper portion or all of the groove 44 is inclined relative to the longitudinal central axis S; that is, the closer to the headrest 10 in the direction along the longitudinal central axis S, the smaller the distance between that portion of the groove 44 and the longitudinal central axis S. In the preferred embodiment shown in the accompanying drawings, there are two pins 42 and two inclined slots 44, and the two pins 42 and the two inclined slots 44 are symmetrically distributed with respect to the longitudinal central axis S.

[0053] Based on the aforementioned side wing adjustment mechanism 40, when the headrest 10 is in the retracted state, the pin 42 is located at the bottom of the straight slide groove 43. When the headrest 10 is pulled upward, the pin 42 connected to the headrest 10 moves upward along with the headrest 10. Therefore, it is driven by the headrest 10 to slide upward along the straight slide groove 43 first. Then, as the headrest 10 continues to be pulled upward, the pin 42 enters the inclined groove 44 and continues to slide upward. As the pin 42 moves upward, the inclined groove 44 is gradually pushed open, so that the side wing 30 is also gradually pushed open. Therefore, as the headrest 10 moves upward, the side wing 30 is opened. Conversely, when it is necessary to fold the side wing 30, the headrest 10 can be pressed downward, or the side wing 30 can be pushed inward directly. Whether the headrest 10 moves downward or the side wing 30 moves inward, the sliding of the pin 42 in the inclined groove 44 allows the headrest 10 to be pressed against the backrest 20 while the side wing 30 is folded up.

[0054] To ensure smooth movement during the opening and folding of the side wings 30 and prevent mismatches in movement between the two side wings 30 that could lead to skewness or jamming, the side wing adjustment mechanism 40 according to this application also includes a drive rod 49, in conjunction with reference to... Figure 1As shown, the drive rod 49 is located on the front of the child safety seat 1. In this embodiment, the drive rod has a U-shaped structure, but the invention is not limited to this; other alternative structures can also be used, such as a straight horizontal bar structure. The drive rod 49 is connected to the left and right pins 42 respectively, thereby enabling the drive rod 49 to coordinate the movement of the two pins 42. During the upward or downward movement of the headrest 10, the drive rod 49 can coordinate the movement of the two pins 42, keeping the movement of the two pins 42 synchronized. This effectively avoids skewing and jamming caused by mismatch and imbalance in the movement of the side wings 30.

[0055] Furthermore, the flank adjustment mechanism 40 according to this application also includes a return member 45, in conjunction with reference to... Figure 4 and Figure 5 As shown, a return member 45 is disposed on the back of the child safety seat 1, and the return member 45 is pivotally connected to the side wing 40. Specifically, as shown in the figure, the return member 45 is generally U-shaped, with the bottom end of the U-shape being the first end 451. The pin 42 is fitted onto the first end 451 and can slide along the U-shape of the return member 45. The open end of the U-shape is the second end 452, which is pivotally connected to the side wing 30. However, those skilled in the art will understand that the return member 45 is not limited to the U-shaped structure shown herein, and other alternative structures may be used. The return element 45 guides the up-and-down sliding of the pin 42. Since the return element 45 is pivotally connected to the side wing 30 and the pin 42 passes through it, even if the dimensions of the inclined groove 44 are incorrect (e.g., the groove 44 is too large), the movement of the pin 42 can still be guided by the return element 45, allowing for smooth and unobstructed sliding. This reduces the machining requirements of the inclined groove 44 and lowers machining costs. Figure 4 and Figure 5 As shown, there are two return members 45, and the two return members 45 are symmetrically distributed with respect to the longitudinal central axis S. Of course, other arrangements are also feasible. The return member 45 is pivotally connected to the side wing 30. When the headrest 10 is pulled upward, the pin 42 enters the interior of the return member 45 at the same time as entering the inclined groove 44. Therefore, the upward sliding of the pin 42 will pull the return member 45 to pivot, pushing open the side wing 30 and putting it in the unfolded state. On the other hand, when the headrest 10 is retracted downward, the pin 42 will slide downward along the return member 45 and the inclined groove 44. At this time, the return member 45 pivots inward, and the movement of the pin 42 drives the folding of the side wing 30.

[0056] Furthermore, the wing adjustment mechanism 40 according to this application also includes a spring 47, such as Figure 4 and 5As shown, spring 47 connects the side wing 30 of the connecting seat and the return member 45. The arrangement of spring 47 ensures that the side wing 30 can be folded back without adjusting the headrest 10. Specifically, after the pin 42 returns from the inclined groove 44 to the straight slide groove 43, spring 47 ensures that the side wing 30 is pulled back to its original position. Alternatively, the side wing 30 can be pushed, and under the action of spring 47, the pin 42 returns to the straight slide groove 43 in the opposite direction by pushing the side wing 30, thereby allowing the side wing 30 to retract to its original position. In addition, to prevent spring 47 from falling out, the side wing adjustment mechanism 40 according to this application also includes a spring positioning member 48, which is disposed on the side wing 30 for positioning spring 47.

[0057] According to the side wing adjustment mechanism 40 of this application and the child safety seat 1 including the side wing adjustment mechanism 40, the side wing 30 can be folded and opened at will through the side wing adjustment mechanism 40. Moreover, the structure of this application is more inclusive. During the opening and folding of the side wing 30, the headrest 10 can be pulled or the side wing 30 can be pushed more smoothly and effortlessly. This can avoid the side wing 30 from tilting or getting stuck during the opening and folding process, making the opening and folding process of the side wing 30 smoother.

[0058] Since the features of the invention can be embodied in various forms without departing from the nature of the invention, it should also be understood that the above embodiments are not limited to any of the details described above, unless otherwise stated, and should be broadly interpreted as falling within the scope defined by the appended claims. Therefore, all modifications and alterations falling within the scope and limits of the claims or equivalents thereof should be covered by the appended claims.

Claims

1. A side wing adjustment mechanism (40) for adjusting the height of the headrest (10) relative to the backrest (20) and the opening distance of the side wings (30), the side wing adjustment mechanism (40) comprising: A latch (42) is provided on the headrest (10); as well as A sloping groove (44) is provided on the side wing (30). In the direction extending from bottom to top toward the headrest (10) along the longitudinal central axis (S) of the backrest (20), at least a portion of the sloping groove (44) is gradually distanced from the longitudinal central axis (S), and the pin (42) can slide up and down along the sloping groove (44). as well as The return member (45) is pivotally connected to the side wing (30). The return member (45) has an overall U-shaped structure. The pin (42) enters the interior of the return member (45) at the same time as entering the inclined groove (44). The pin (42) can enter and slide along the U-shaped structure of the return member (45) during the adjustment of the headrest (10).

2. The wing adjustment mechanism (40) as described in claim 1, wherein, A straight slide groove (43) is provided below the inclined groove (44), and the lower part of the inclined groove (44) is connected to the straight slide groove (43). The pin (42) can slide up and down in the straight slide groove (43).

3. The wing adjustment mechanism (40) as described in claim 1, wherein, The bottom end of the U-shape is the first end (451), the pin (42) is sleeved on the first end (451) and can slide along the U-shape of the return member (45), the open end of the U-shape is the second end (452), and the second end is pivotally connected to the side wing (30).

4. The wing adjustment mechanism (40) as described in claim 1, wherein, The side wing adjustment mechanism (40) also includes a spring (47) connected between the side wing (30) and the return member (45).

5. The wing adjustment mechanism (40) as described in claim 4, wherein, The side wing adjustment mechanism (40) further includes a spring positioning element (48), which is disposed on the side wing (30) for positioning the spring (47).

6. The wing adjustment mechanism (40) as described in claim 1, wherein, Two pins (42) are provided, and correspondingly two inclined slots (44) and two return pieces (45) are also provided. The two pins (42), the two inclined slots (44) and the two return pieces (45) are symmetrically distributed relative to the longitudinal central axis (S).

7. The wing adjustment mechanism (40) as described in claim 6, wherein, The side wing adjustment mechanism (40) also includes a drive rod (49), which is used to link the two pins (42).

8. The wing adjustment mechanism (40) as described in claim 7, wherein, The drive rod (49) is U-shaped, and its two ends are respectively connected to the two pins (42).

9. An adjustable passenger vehicle, comprising: Headrest (10); The backrest (20) and the headrest (10) are slidably disposed on the backrest (20). Side wings (30), connected to the backrest (20); and The wing adjustment mechanism (40) as described in any one of claims 1-8.

10. The adjustable passenger device as claimed in claim 9, wherein, An upper slider (22) is provided on the backrest (20), and an upper sliding groove (32) is provided on the side wing (30). The upper slider (22) can slide in the upper sliding groove (32).

11. The adjustable passenger device as claimed in claim 10, wherein, The upper slider (22) and the upper groove (32) are both provided in pairs and are symmetrically arranged along the longitudinal central axis (S) of the backrest (20).

12. The adjustable passenger device as claimed in claim 10, wherein, The backrest (20) is also provided with a sliding block, and the side wing (30) is also provided with a sliding groove, and the sliding block can slide in the sliding groove.

13. The adjustable passenger device as claimed in claim 9, wherein, A sliding block (26) is provided on the backrest (20), and a sliding groove (36) is provided on the side wing (30). The sliding block (26) is slidably disposed in the sliding groove (36).

14. The adjustable passenger device as claimed in claim 13, wherein, The lower slider (26) and the lower groove (36) are both provided in pairs and are symmetrically arranged along the longitudinal central axis (S) of the backrest (20).

15. The adjustable passenger device as claimed in claim 14, wherein, The lower slider (26) is in the form of a connecting rivet, and the lower groove (36) is in the form of a connecting long groove.

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