Telescopic mechanism and baby bed

Abstract

The present application discloses an extension mechanism including a first housing, a second housing fitted within the first housing and movable relative to the first housing between an extended position and a retracted position, and an engagement member disposed at least partially within the second housing and engageable with the second housing in the extended position. The present application also discloses a baby bed.

Description

[Technical Field]

[0001] The present application relates to an extension mechanism, in particular an extension mechanism having an engagement device, and also to a baby bed equipped with an extension mechanism. [Background technology]

[0002] Cribs are common children's items, and a crib placed next to an adult bed is called a bedside bed. Bedside beds offer great convenience when caring for infants and young children. Caregivers typically purchase bedside beds of the same height as adult beds. To facilitate care during nighttime sleep, the bedside bed is placed near the adult bed. However, to ensure the stability of the bedside bed when used alone, the foot of the bedside bed is usually configured to extend outside the bed body. Typically, the foot of the bedside bed can extend into the bottom of the adult bed, thereby bringing the bedside bed closer to the adult bed and facilitating care of the child. However, if the bedside bed is used close to the adult bed and there is no gap between the bottom of the adult bed and the ground, the foot will interfere with the adult bed, creating a gap between the bedside bed and the adult bed, making it inconvenient to care for the child using the bedside bed. Summary of the Invention

[0003] An extension mechanism according to the present application includes a first housing, a second housing fitted within the first housing and movable relative to the first housing between an extended position and a retracted position, and an engagement member at least partially disposed within the second housing and engageable with the second housing in the extended position.

[0004] In one embodiment, the engagement member includes a first protrusion that mates with an engagement hole in the first housing when the second housing is in an extended position.

[0005] In one embodiment, the telescopic mechanism further includes an operating member that is operated to act on the engagement member, thereby disengaging the first protrusion from the engagement hole, and the operating member is releasable to allow the first protrusion to bounce back into the engagement hole.

[0006] In one embodiment, the engagement member includes an engagement portion engageable with the first housing, and the first protrusion is disposed at a free end of the engagement portion.

[0007] In one embodiment, the operating member is provided on the first housing and can be pressed, and the engagement portion is provided as an elastic sheet that springs outward from the first housing, and when the second housing is in an extended position, the engagement portion is pressed by the operating member to release engagement with the first housing.

[0008] In one embodiment, the engagement member includes a limiting portion that extends from the second housing to the first housing and engages with the first housing to limit the range of movement of the second housing.

[0009] In one embodiment, the limiting portion extends toward the inside of the first housing, a limiting groove is provided in the limiting portion, and a guide pin is provided in the first housing, and the guide pin is inserted into the limiting groove to guide the movement of the second housing.

[0010] In one embodiment, the engagement member includes at least one sleeve extending from the end of the second housing that is inserted into the first housing toward the outside of the first housing, and at least one column is provided inside the first housing, the column being insertable into the sleeve and guiding movement of the second housing.

[0011] In one embodiment, the intermediate portion is disposed at an end of the second housing that is inserted into the first housing, and the engaging portion extends from the intermediate portion toward the outside of the first housing.

[0012] In one embodiment, the sleeve includes a first sleeve and a second sleeve, the first sleeve and the second sleeve each extending from the intermediate portion toward the outside of the first housing, the column includes a first column and a second column, and when the second housing is in the retracted position, the first column and the second column are at least partially inserted into the first sleeve and the second sleeve, respectively.

[0013] In one embodiment, the length of the first column is greater than the length of the second column, and when the second housing is in the extended position, at least a portion of the first column is located within the first sleeve.

[0014] In one embodiment, the telescoping mechanism further includes an elastic member that is sleeved onto the second column and inserted into the second sleeve, thereby biasing the second housing toward the extended position.

[0015] In one embodiment, the engaging member is further provided with a second protrusion, the second protrusion being arranged to be inserted into an opening in a wall of the second housing to connect the engaging member to the second housing.

[0016] The baby bed according to the present application includes a bed body, a support foot arranged below the bed body, and an extension mechanism according to the present application, wherein the first housing is connected to the lower end of the support foot, and two second housings are fitted into both vertical ends of the first housing, respectively. [Brief explanation of the drawings]

[0017] [Figure 1]1 is a perspective view of a crib according to the present application; [Figure 2] FIG. 10 is a perspective view of the support foot and telescoping mechanism with the second housing in the extended position. [Figure 3] FIG. 10 is a perspective view of the support feet and the telescoping mechanism with one second housing in a retracted position and the other second housing in an extended position. [Figure 4] FIG. [Figure 5A] 2 is a cross-sectional view taken along line A-A of FIG. 1, with the second housing in an extended position. [Figure 5B] FIG. 5B is a partial enlarged view of the frame portion of FIG. 5A. [Figure 6A] 2 is a cross-sectional view taken along line A-A of FIG. 1, with one second housing in a retracted position and the other second housing in an extended position. [Figure 6B] FIG. 6B is a partial enlarged view of the frame portion of FIG. 6A. [Figure 7] 2 is a cross-sectional view taken along line B-B of FIG. 1, with the second housing in an extended position. [Figure 8] 2 is a cross-sectional view taken along line B-B of FIG. 1, with one second housing in a retracted position. DETAILED DESCRIPTION OF THE INVENTION

[0018] Although the present application is illustrated and described herein with reference to specific embodiments, the present application should not be limited to the details shown, and in particular, various changes can be made to these details within the scope of the equivalent solutions of the claims and without departing from the present application.

[0019] The descriptions of "front," "rear," "upper," "lower," and other directions described herein are merely for ease of understanding. The present application is not limited to these directions and can be adjusted according to actual circumstances. Although the present application has been described in exemplary embodiments, the terms used are for the purposes of explanation and illustration, not limitation.

[0020] A baby bed 100 according to the present application will be described in brief with reference to FIGS.

[0021] The crib 100 includes a crib body and a support foot 160 disposed below the crib body. The lower end of the support foot 160 is connected to a telescoping mechanism according to the present application. The telescoping mechanism generally includes a first housing 110, a second housing 120, an engagement member 130 (as shown in FIGS. 4, 5B, 6B, 7, and 8, the engagement member 130 is at least partially fixed within the second housing 120), and an operating member 140.

[0022] The first housing 110 is connected to the lower end of the support foot 160 and extends vertically. The two second housings 120 are fitted to both ends of the first housing 110 in the vertical direction and can independently move vertically relative to the first housing 110 between an extended position and a retracted position. Here, the term "retracted position" refers not only to the position of the second housing 120 shown in FIG. 3 but also to all positions in the process of the second housing 120 retracting from the extended position shown in FIG. 2 toward the first housing 110. In other words, any position reached by the second housing 200 retracting any distance is called a "retracted position." FIG. 3 shows the retracted position with the longest retracted distance.

[0023] Both the first housing 110 and the second housing 120 are hollow, with the cross section of the second housing 120 being slightly smaller than the cross section of the first housing 110 and sleeved inside the first housing 110. One end of each second housing 120 is inserted into the first housing 110 and the other end is connected to a roller or support foot (the illustration shows a roller).

[0024] In this embodiment, the first housing 110 and the second housing 120 both extend substantially along the vertical direction, and the second housing 120 moves along the vertical direction. Therefore, the first housing 110 and the second housing 120 have a simple and easy-to-manufacture structure. It should be understood that in other embodiments, the first housing 110 and the second housing 120 can be installed to extend, for example, diagonally or curvedly, and the second housing 120 moves correspondingly diagonally or curvedly.

[0025] In this embodiment, the first housing 110 and the second housing 120 each have a substantially rectangular cross section perpendicular to the longitudinal direction. In other embodiments, the first housing 110 and the second housing 120 may have different cross-sectional shapes.

[0026] 2 shows both second housings 120 in the extended position, and FIG. 3 shows the left second housing 120 in the retracted position and the right second housing 120 in the extended position. Engagement members 130 are used to guide the longitudinal movement of the second housings 120 and can maintain the second housings 120 in the extended position, as described in detail below. An operating member 140 is disposed on the outer surface of the first housing 110 and can be operated to act on the engagement members 130 to disengage them from the second housing 120.

[0027] The specific structure of the engaging member 130 will be described with reference to FIG.

[0028] The engaging member 130 includes a limiting portion 131, a limiting groove 132, a first sleeve 133, a second sleeve 134, an engaging portion 135, a first protrusion 136, a second protrusion 137, and an intermediate portion 138. In terms of the structure and operation of the engaging member 130, it may be considered as a holder or a clamping member.

[0029] Intermediate portion 138 extends vertically and corresponds to the cross-sectional shape of second housing 120, and is fixed to the end of second housing 120 that is inserted into first housing 110. In one embodiment, the end of second housing 120 that is inserted into first housing 110 is an open end, and intermediate portion 138 surrounds the open end.

[0030] The engaging portion 135, the first sleeve 133, the second sleeve 134, and the limiting portion 131 extend vertically from the intermediate portion 138, and the extending direction of the limiting portion 131 is opposite to the extending direction of the engaging portion 135, the first sleeve 133, and the second sleeve 134. Because the intermediate portion 138 is located at the end of the second housing 120, the engaging portion 135, the first sleeve 133, and the second sleeve 134 are inserted into the interior of the second housing 120, in other words, they extend toward the outside of the first housing 110 (the lower left of FIG. 4 ).

[0031] Because the intermediate portion 138 is disposed at the end of the second housing 120 and the second engaging portion 135, the first sleeve 133, and the second sleeve 134 are inserted into the second housing 120, the engaging member 130 is stably fixed to the second housing 120. Furthermore, the extending direction of the limiting portion 131 is opposite to the extending direction of the engaging portion 135, the first sleeve 133, and the second sleeve 134. Therefore, the limiting portion 131 does not occupy space within the second housing 120.

[0032] In this embodiment, the engagement member 130 is fixedly connected to the second housing 120. It should be understood that in other embodiments, the engagement member 130 may be configured to be movably connected to the second housing 120, for example, by an adjustable bolt to allow adjustment of the position of the engagement member 130 relative to the second housing 120.

[0033] The engagement portion 135 engages the second housing 120 with the first housing 110. When the second housing 120 is in the extended position, the engagement portion 135 engages with the first housing 110. The first sleeve 133 and the second sleeve 134 engage with the first column 111 and the second column 112 inside the first housing 110 to guide the vertical movement of the second housing 120 (FIGS. 7 and 8). Furthermore, the engagement between the first sleeve 133 and the first column 111 is intended to prevent the second housing 120 from rapidly extending or retracting, which could cause excessive impact noise, while the engagement between the second sleeve 134 and the second column 112 is intended to position and guide the spring 150, as will be described in detail below. The limiter 131 engages with the guide pin 113 of the first housing 110 to limit the range of movement of the second housing 120.

[0034] More specifically, the end of the engaging portion 135 away from the intermediate portion 138 is a free end and includes a first protrusion 136. The first protrusion 136 extends in a horizontal direction perpendicular to the vertical direction. When the second housing 120 is in the extended position, the first protrusion 136 fits into the engaging hole 114 of the second housing 120. The engaging portion 135 is provided as an elastic sheet that springs outward in the horizontal direction from the first housing 110, and when the second housing 120 is in the extended position, the engaging portion 135 can be pushed by the operating member 140 to release the engagement with the first housing 110.

[0035] In this embodiment, the first protrusion 136 is provided at the free end of the engagement portion 135, and the engagement portion 135 has a simple structure and ideal elasticity. The first protrusion 136 can be accurately clamped within the engagement hole 114. In other embodiments, the engagement portion 135 may have other forms, for example, a slider that can be ejected laterally.

[0036] The engaging portion 135 is located between the first sleeve 133 and the second sleeve 134 in the vertical direction, and is located on one side of the first sleeve 133 and the second sleeve 134 in the horizontal direction.

[0037] The engaging member 130 may further be provided with a second protrusion 137, which is provided as an elastic locking protrusion structure connected to the second housing 120, i.e., the second protrusion 137 is inserted into the opening 121 in the wall of the second housing 120 so as to connect the engaging member 130 to the second housing 120 (see Figures 5B and 6B).

[0038] The first sleeve 133 and the second sleeve 134 each extend from the intermediate portion 138 toward the outside of the first housing 110 and are arranged along the vertical direction. The first sleeve 133 and the second sleeve 134 are each a hollow cylindrical tube, and the length of the first sleeve 133 is slightly longer than the length of the second sleeve 134. The number of sleeves is not limited to two as in this embodiment, but may be one or two or more, and the lengths of the multiple sleeves may be the same or different.

[0039] The operation of the telescopic structure according to the present application will be described with reference to FIGS. 5A to 6B.

[0040] 5A and 5B, the second housing 120 is in the extended position. The first protrusion 136 of the engagement portion 135 penetrates the second housing 120 and engages with the engagement hole 114 of the first housing 110. Therefore, the engagement portion 135 prevents the second housing 120 from moving vertically relative to the first housing 110.

[0041] 5B, operating member 140 is located at an end of first housing 110 and is arranged so as to be able to be pressed laterally. Operating member 140 includes fixed end 141 and operating end 142. Fixed end 141 is fixed to the outside of first housing 110, and operating end 142 corresponds to the position of engagement hole 114. Operating member 140 is provided as an elastic sheet, which allows operating end 142 to be held in close contact with first protrusion 136 without receiving any force.

[0042] In this embodiment, the telescopic structure is designed so that the first protrusion 136 is located near the end of the first housing 110 when the second housing 120 is in the extended position, thereby increasing the stroke of the second housing 120. It should be understood that in other embodiments, the telescopic structure may be designed so that the engagement portion 135 has not yet moved near the end of the first housing 110 (e.g., still remains within the first housing 110) when the second housing 120 is in the extended position. In this case, the operating member 140 can be installed at a position corresponding to the engagement portion 135.

[0043] When a user needs to retract the second housing 120, the user presses the operating end 142 of the operating member 140, thereby applying pressure to the first protrusion 136. The pressure causes the first protrusion 136 to disengage from the engagement hole 114 and retract into the first housing 110, thereby no longer blocking relative movement between the first housing 110 and the second housing 120. Therefore, the user can move the second housing 120 to a retracted position, for example, by abutting the end of the second housing 120 exposed outside the first housing 110 against the side of an adult bed and retracting the second housing 120. At this time, the telescopic structure reaches the state shown in FIGS. 6A and 6B .

[0044] When the user needs to return the second housing 120 to the extended position, the user simply releases the second housing 120, and the second housing 120 returns to the extended position under the action of the elastic member 150. At this time, the engaging portion 135 is pushed out laterally by its own elastic action, and the first protrusion 136 is inserted into the engaging hole 114, thereby locking the relative movement between the first housing 110 and the second housing 120 and returning to the state shown in FIGS. 5A and 5B.

[0045] In this embodiment, the telescopic structure has a smaller horizontal dimension and a larger vertical dimension. Therefore, when the engaging portion 135 is configured to move in the horizontal direction, the pressing contact surface of the engaging portion 135 can extend along the vertical direction and have a large contact area. It should be understood that in other embodiments, the telescopic structure may have a different shape, for example, different horizontal and vertical dimensions, and the engaging portion 135 may be configured to move along correspondingly other directions.

[0046] It should be understood that a locking device can be provided between the first housing 110 and the second housing 120 to lock the second housing 120 in any retracted position. In this way, if a user needs to move the second housing 120 from the retracted position to the extended position, the locking device can be first unlocked. That is, the locking device prevents the second housing 120 from moving toward the extended position.

[0047] 7 and 8, the operation of the telescopic structure will be further explained, and the arrangement of the first sleeve 133, the second sleeve 134, the first column 111, the second column 112, the elastic member 150, and the restrictor 131 will also be explained.

[0048] The first column 111 and the second column 112 are fixedly disposed within the first housing 110 and extend vertically, and can be inserted into the first sleeve 133 and the second sleeve 134, respectively, to guide the vertical movement of the second housing 120. It should be understood that there can be one column or two or more columns, and the number of columns corresponds to the number of sleeves.

[0049] As shown in FIG. 8, when the second housing 120 is in the retracted position, the first column 111 and the second column 112 are at least partially inserted into the first sleeve 133 and the second sleeve 134, respectively. As shown in FIG. 7, the length of the first column 111 is longer than the length of the second column 112. Therefore, when the second housing 120 is in the extended position, at least a portion of the first column 111 is located within the first sleeve 133, and the second column 112 is separated from the second sleeve 134. More specifically, a plug 115 is provided at the end of the first column 111. The plug 115 is used to provide a buffering effect. Specifically, the plug 115 seals the first sleeve 133 into a sealed space, and a vent hole 133a is provided at the sealed end of the first sleeve 133. When the second housing 120 extends from the first housing 110, the plug 115 exits the first sleeve 133, creating a negative pressure within the first sleeve 133, which can slow down the rate of extension of the second housing 120. Similarly, when the second housing 120 retracts into the first housing 110, the plug 115 can also slow down the rate of retraction of the second housing 120. A resilient member 150 in the form of a coil spring is sleeved onto the second column 112 and inserted within the second sleeve 134, thereby biasing the second housing 120 toward the extended position.

[0050] Limiting portion 131 extends in the vertical direction from second housing 120 to first housing 110 and is engaged with first housing 110 to guide the vertical movement range of second housing 120. More specifically, limiting portion 131 extends in the vertical direction from intermediate portion 138 toward the inside of first housing 110, and limiting portion 131 is provided with limiting groove 132 extending in the vertical direction. Guide pin 113 extending in the horizontal direction is fixedly provided on first housing 110, and guide pin 113 is inserted into limiting groove 132, thereby guiding the vertical movement of second housing 120.

[0051] 7 and 8, it can be seen that when the second housings 120 are in the retracted position, the limiting portions 131 of the two second housings 120 can overlap each other, i.e., they are laterally misaligned. This allows the two second housings 120 to overlap each other to a certain extent without interfering with each other, thereby increasing the range of movement of the second housings 120.

[0052] Therefore, the present application provides a baby crib with a telescoping foot structure for changing the foot length. Furthermore, the telescoping foot structure can lock the foot in an extended position, and the telescoping foot structure must be manually unlocked to change the foot length, thereby avoiding safety issues caused by the baby crib's telescoping foot accidentally retracting.

[0053] Because the present application can be embodied in various forms without departing from the spirit and essence of the present application, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be construed in the broadest scope within the scope of the claims. Accordingly, all changes that come within the scope of the claims or equivalents thereof are intended to be embraced by the claims. [Explanation of symbols]

[0054] 100 Cribs 110 First Housing 111 First Column 112 Second Column 113 Guide pin 114 Engagement hole 115 Plug 120 Second Housing 121 Opening 130 Engagement member 131 Restricted Section 132 Restriction groove 133 First Sleeve 133a Ventilation hole 134 Second Sleeve 135 Engagement part 136 First protrusion 137 Second protrusion 138 Middle 140 Operating member 141 Fixed end 142 Control end 150 Elastic member 160 Support Foot

Claims

1. An extension mechanism, a first housing; a second housing fitted within the first housing and movable relative to the first housing between an extended position and a retracted position; an engagement member at least partially disposed within the second housing and engageable with the second housing in the extended position. An extension mechanism characterized by:

2. the engaging member includes a first protrusion; The first protrusion is aligned with an engagement hole of the first housing when the second housing is in the extended position. The telescopic mechanism according to claim 1 .

3. Further including an operating member, the operating member is operated to act on the engaging member, thereby disengaging the first protrusion from the engaging hole; The operating member is releasable to allow the first protrusion to rebound into the engagement hole. The telescopic mechanism according to claim 2 .

4. The engaging member includes an engaging portion that is engageable with the first housing, and the first protrusion is disposed at a free end of the engaging portion.

4. The telescopic mechanism according to claim 2 or 3.

5. the operating member is provided on the first housing and can be pressed; The engaging portion is provided as an elastic sheet that springs outward from the first housing, and when the second housing is in the extended position, the engaging portion is pushed by the operating member to release the engagement with the first housing. The telescoping mechanism of claim 4 in combination with claim 3.

6. the engaging member includes a limiting portion; The limiting portion extends from the second housing to the first housing and is engaged with the first housing to limit the range of movement of the second housing. The telescopic mechanism according to any one of claims 1 to 5.

7. The limiting portion extends toward the inside of the first housing, and a limiting groove is provided in the limiting portion. The first housing is provided with a guide pin, which is inserted into the limiting groove to guide the movement of the second housing. The telescoping mechanism according to claim 6 .

8. the engaging member includes at least one sleeve, the sleeve extending from an end of the second housing that is inserted into the first housing toward an exterior of the first housing; At least one column is provided inside the first housing, and the column is insertable into the sleeve and guides the movement of the second housing. The telescopic mechanism according to any one of claims 1 to 7.

9. the engaging member further includes an intermediate portion; the intermediate portion is disposed at an end of the second housing that is inserted into the first housing; The engaging portion extends from the intermediate portion toward the outside of the first housing. The telescoping mechanism according to claim 4, optionally in combination with any one of claims 5 to 8.

10. the at least one sleeve includes a first sleeve and a second sleeve, the first sleeve and the second sleeve each extending from the intermediate portion toward an exterior of the first housing; The at least one column includes a first column and a second column, and when the second housing is in the retracted position, the first column and the second column are at least partially inserted within the first sleeve and the second sleeve, respectively. The telescoping mechanism of claim 9 in combination with claim 8.

11. The length of the first column is greater than the length of the second column, and when the second housing is in the extended position, at least a portion of the first column is located within the first sleeve. The telescoping mechanism according to claim 10.

12. further comprising an elastic member; The resilient member is sleeved onto the second column and inserted into the second sleeve, thereby biasing the second housing to the extended position. The telescopic mechanism according to claim 10 or 11.

13. The engaging member is further provided with a second protrusion, The second protrusion is positioned to be inserted into an opening in a wall of the second housing to connect the engaging member to the second housing. The telescopic mechanism according to any one of claims 1 to 12.

14. A baby bed, The bed itself, A support foot disposed below the bed body; The telescopic mechanism according to any one of claims 1 to 13, The first housing is connected to the lower end of the support foot, and the two second housings are fitted to both ends of the first housing in the vertical direction. A baby bed that features:

Images