Vertically swinging base

Abstract

To provide a vertically swinging base having a simple structure, facilitating maintenance, having high safety, usable for a wide range of applications, and being compact, lightweight and easy to move.SOLUTION: A vertically swinging base 10 supports a swinging object member 12 in such a manner as to be swingable in a vertically direction. The vertically swinging base includes a fixed base 16 installed on a floor, and a movable mounting part 14 disposed outside the fixed base 16, fitted to cover a side surface 20, and vertically swinging relative to the fixed base 16 via a spring member 32. The movable mounting part 14 has a plate-like side face, and includes, on a top surface side of the movable mounting part, an engaging / fixing part 38 for attaching the swinging object member 12. The top surface of the movable mounting part 14 includes a planar plate member 36 for mounting the swinging object member 12, and the swinging object member 12 is held on the movable mounting part 14 by the engaging / fixing part 38. The side surface 20 of the fixed base 16 includes a vertically long through-hole 24 through which a swinging-side spring mounting part 22 is vertically movably inserted.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vertically swingable base on which a baby bed or the like used for putting an infant to sleep is placed. [Background technology]

[0002] Conventionally, there have been rocking cribs that induce sleep by providing a comfortable rocking motion to lull an infant to sleep. Rocking cribs are divided into manual rocking types and motor-driven rocking types. For example, Patent Document 1 discloses a bed in which a motor rocks the base of the bed up and down.

[0003] However, when rocking automatically with a motor, it is difficult to make fine adjustments according to the baby's condition and the device becomes complicated, so a manual rocking is preferable because it allows for fine adjustments while watching the baby's facial expression. For example, the hanging bed type baby bed disclosed in Patent Document 2 is provided with an outer frame having a certain enclosed space, a lifting frame that is installed within the outer frame and can be raised and lowered, a sleeping sheet laid in the opening of the lifting frame, a lifting mechanism that stops the lateral rocking of the lifting frame within the outer frame and allows linear lifting movement, and an elastic member that elastically connects the outer frame and the lifting frame and cushions the lifting and lowering movement of the lifting frame.

[0004] Furthermore, the swing-type infant bed disclosed in Patent Document 3 is composed of a bed body framed by a rectangular fence with floorboards inside, and a rectangular outer frame suspended at the four corners by coil springs. Vertical guide grooves are provided in the vertical frames at each of the four corners of either the bed body or the outer frame, and guide wheels that engage with the guide grooves are attached to the other four corners.

[0005] However, as disclosed in Patent Documents 2 and 3, in a crib with a lattice-shaped lifting frame or bed body attached to the inside of a fixed outer frame that swings up and down, the outer frame and the inner lattice-shaped lifting frame or bed body slide against each other around the perimeter of the baby's bed, posing a safety risk, as objects can become caught between the two sliding components and break, or fingers can become trapped and injured. In particular, when the outer frame has a lattice structure, fingers or objects can easily become trapped in the gap. Furthermore, the bed disclosed in Patent Document 1 has a fixed inner frame and an outer top surface that can move up and down. However, since the sides of the outer frame are fixed and the top surface moves up and down, there is a risk of fingers becoming trapped in the gap, creating the same problem as above. Therefore, as disclosed in Patent Document 4, a rocking crib has been proposed in which a cover is provided on the bed body to cover the movable upper frame member. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] USP4969451 publication [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-313254 [Patent Document 3] Japanese Patent Application Laid-Open No. 2005-192771 [Patent Document 4] Japanese Patent Application Publication No. 2018-68411 Summary of the Invention [Problem to be solved by the invention]

[0007] In the case of the beds disclosed in Patent Documents 1 to 3 in the background art, there is a risk that an object may be caught in the gap between the movable and fixed parts, causing breakage, or that a finger or other object may be caught and injured. Furthermore, in the case of the bed disclosed in Patent Document 4, a cover that covers the movable upper frame member is provided on the bed body, which complicates the structure, making maintenance of the movable part difficult and increasing the overall size and weight. Furthermore, in the case of the beds disclosed in Patent Documents 1 to 4, the bed body and the oscillating movable part are assembled as a single unit, making the entire device large and heavy, making it difficult to replace the bed body or use it for other purposes instead of a bed. Moreover, because the bed and base are configured as a single device, cleaning dust and the like inside the base is also difficult.

[0008] The present invention has been made in consideration of the problems of the above-mentioned background art, and aims to provide an up-and-down swingable base that has a simple structure, is easy to maintain, is highly safe, can be used for a wide range of applications, is small, lightweight, and easy to move. [Means for solving the problem]

[0009] The present invention provides a vertically swingable base on which a swingable member such as a baby bed body is placed and which supports the swingable member in a state in which the swingable member can swing in the vertical direction, The base is provided with a fixed base portion installed on the floor, and a movable mounting portion that is arranged outside the fixed base portion and fits to cover the side surface of the fixed base portion, and is installed so as to be swingable up and down relative to the fixed base portion via a spring member; The movable mounting portion is an up-and-down swingable base having plate-shaped side surfaces formed on all four sides that fit into the fixed base portion, and an engaging and fixing portion on the top surface of the movable mounting portion that attaches the swingable member to the movable mounting portion.

[0010] A flat plate member on which the oscillating member is placed is provided on the top surface of the movable mounting portion, and the oscillating member is held on the movable mounting portion by the engaging and fixing portion via the plate member.

[0011] The fixed base is formed in the shape of a square tube placed on the floor, and a fixed side spring mounting portion is provided on the upper part of the fixed base, and the movable mounting portion is a square tube-shaped body that fits comfortably on the outside of the fixed base, and a swinging side spring mounting portion is provided on the lower part of the movable mounting portion, located below and facing the fixed side spring mounting portion of the fixed base, and a vertically long through hole is formed on the side of the fixed base, through which the swinging side spring mounting portion can be inserted so as to be movable up and down, and the spring member is attached between the fixed side spring mounting portion and the swinging side spring mounting portion, and the spring member expands when the swinging side spring mounting portion descends and is compressed when the swinging side spring mounting portion ascends.

[0012] The fixed side spring mounting portion is installed at two locations across the opening on the upper surface of the fixed base portion, and the oscillating side spring mounting portion is installed at two locations across the opening on the lower surface of the movable support portion, the fixed side spring mounting portion and the oscillating side spring mounting portion are positioned opposite each other, and the spring member, a coil spring, is suspended between the fixed side spring mounting portion and the oscillating side spring mounting portion.

[0013] The engaging and fixing portion is composed of an engaging portion consisting of a convex or concave portion provided on the movable mounting portion, and an engaged portion consisting of a concave or convex portion provided on the oscillating member, and fixes the oscillating member in the front-to-back, left-to-right and horizontal directions.

[0014] The swingable member is a baby bed, and a fence of a certain height is provided on the baby bed or the movable placing portion, and the engaging and fixing portion is equipped with a holding member that holds the baby bed, so that the fence and the movable placing portion move up and down together.

[0015] A roller is provided on the side of the fixed base portion facing the movable loading portion, and when the movable loading portion oscillates relative to the fixed base portion, the roller is rotatably arranged in contact with the side of the movable loading portion. [Effects of the Invention]

[0016] The vertically swinging base of the present invention can be easily swung with a weak force to easily create vertical swinging. For example, when a baby cot is placed on it to put an infant to sleep, the comfortable vertical swinging motion can be given to the infant, making them feel safe and making it easy to put them to sleep. Furthermore, no extra covering members are required, and the entire device is simple and compact, making it suitable for a wide range of applications. The swingable member of the baby cot, etc., can be replaced with a commercially available one as needed, allowing the swingable member to be changed depending on the usage situation. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view of a state in which a bed body is placed on a vertically swinging base according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the vertically swingable base of this embodiment. [Figure 3] 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a right side view of the fixed base part of the vertically swingable base of this embodiment. [Figure 4] 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a right side view of the movable placement portion of the vertically swinging base of this embodiment. [Figure 5] 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a right side view showing a state in which a movable placement part is fitted into a fixed base part of a vertically swinging base of this embodiment. [Figure 6] FIG. 2 is a perspective view showing the inside of the fixed base portion and the movable placement portion of the vertically swinging base of this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 6 show one embodiment of the present invention, in which a vertically swinging base 10 of this embodiment is used to place a bed body 12, which is a swingable member such as a baby bed for putting an infant to sleep, on the base. The vertically swinging base 10 comprises a fixed base part 16 that is installed on the floor, and a movable placement part 14 that is supported relative to the fixed base part 16 so as to be swingable up and down.

[0019] The movable support portion 14 is a rectangular tube formed by four side surfaces 18 that fits snugly around the outside of the rectangular tube formed by the side surfaces 20 of the fixed base portion 16. Of the four side surfaces 18 of the movable support portion 14, a pair of parallel side surfaces 18a are longer in the horizontal direction than the other perpendicular side surfaces 18b, resulting in a horizontal cross-sectional shape of the rectangular tube that is slightly longer in one direction. The upper and lower end portions 14a and 14b of the movable support portion 14 are open, and a pair of rod-shaped swing-side spring mounting portions 22 are attached to the opening edge of the lower end portion 14b, parallel to the lower end of the shorter side surface 18b. The swing-side spring mounting portions 22 are arranged horizontally and, as described below, pass through four elongated, narrow through-holes 24 in the pair of side surfaces 20a of the fixed base portion 16. Their longitudinal ends reach the pair of side surfaces 18a and are secured with screws or the like.

[0020] The fixed base 16 is also assembled with four side surfaces 20 and is a rectangular cylinder with an open upper end 16a and a lower end 16b. Of the side surfaces 20 of the fixed base 16, a pair of parallel side surfaces 20a are longer in the horizontal direction than the other perpendicular side surfaces 20b, resulting in a horizontal cross-sectional shape of the rectangular cylinder that is slightly longer in one direction. The pair of side surfaces 20a and the pair of side surfaces 20b of the fixed base 16 are slightly shorter in the horizontal direction than the side surfaces 18a, 18b of the movable support portion 14, so that the movable support portion 14 is fitted to the outside of the fixed base 16 with a small gap between them, allowing it to move up and down. Two pairs of elongated, vertically elongated through-holes 24 are formed in the pair of side surfaces 20a of the fixed base 16 in the vertical direction, through which the swing-side spring mounting portion 22 of the movable support portion 14 passes. Furthermore, casters 30 are attached to the four corners of the lower end 16b of the fixed base 16, allowing it to be installed movably on the floor.

[0021] Two long, plate-shaped fixed-side spring mounting portions 28 are provided on the upper end portion 16a of the fixed base portion 16. The sides of the fixed-side spring mounting portions 28 are positioned horizontally, and both longitudinal ends of the fixed-side spring mounting portions 28 reach the pair of side surfaces 20a and are fixed thereto with screws or the like. The longitudinal direction of the fixed-side spring mounting portions 28 is parallel to the side surfaces 20b, and they are provided slightly spaced horizontally inward from each of the pair of side surfaces 20b, crossing the opening in the upper end portion 16a.

[0022] In this state, the pair of fixed-side spring mounting portions 28 are provided at positions corresponding to the through-holes 24 on the pair of side surfaces 18a of the fixed base portion 16. The pair of fixed-side spring mounting portions 28 are located above the respective swing-side spring mounting portions 22 of the movable support portion 14 and are mounted opposite the respective swing-side spring mounting portions 22. This allows the movable support portion 14 to move up and down between a position where each swing-side spring mounting portion 22 abuts against the upper edge 24a and a position where each swing-side spring mounting portion 22 abuts against the lower edge 24b of the through-hole 24, but prevents any further movement.

[0023] Coil springs 32, which are spring members positioned in the space inside the fixed base 16, hang down from the underside of the fixed-side spring mounting portions 28, with their lower ends connected to the upper side of the swing-side spring mounting portions 22. For example, two coil springs 32 are provided on each fixed-side spring mounting portion 28, spaced equally apart along the longitudinal direction of the fixed-side spring mounting portion 28. Thus, two coil springs 32 are attached to each of the two fixed-side spring mounting portions 28, for a total of four. An additional coil spring 32 may be added, for example, in the center. Multiple coil springs 32 may be detachably provided to allow for adjustable elastic force. The length of the coil springs 32 is determined so that each swing-side spring mounting portion 22 is positioned inside the through-hole 24 and close to the upper edge 24a of the through-hole 24 when the movable support portion 14 is not being pressed from above.

[0024] Small holes 33 are formed in each side surface 20a, 20b of the fixed base 16, and rollers 34 with horizontal axes are provided inside the holes 33. As shown in Figures 3, 5, and 6, when the movable support member 14 is free, a pair of rollers 34 are provided vertically, one located slightly below the upper end 16a of the fixed base 16 and the other located below the upper end 16a. A total of 12 rollers 34 are provided, with one pair on each side surface 20b and another pair on the side of the through-hole 24 on the side surface 20a. Each roller 34 protrudes from the outer surface of the side surfaces 20a, 20b and rolls against elongated groove-shaped guide portions 35 provided in the vertical direction on the inner surfaces of the side surfaces 18a, 18b of the movable support member 14, which is fitted to the outside of the fixed base 16. This frictionlessly guides the vertical movement of the movable support member 14. A stopper member 44 is provided on one side surface 20a of the fixed base portion 16 so as to be protruding or retracting or detachable, with which the movable placing portion 14 comes into contact and stops its descent when swinging is not required.

[0025] A flat plate member 36 on which the oscillating member is placed is provided in the opening 26 on the top surface of the movable placement part 14. The plate member 36 covers the opening 26 and is the part on which the bed body 12, which is the oscillating member, is placed, and the bed body 12 is fixed to the movable placement part 14 by an engaging and fixing part 38 via the plate member 36. The engaging and fixing part 38 is made up of an engaging part consisting of a convex or concave part provided on the movable placement part 14 and an engaged part consisting of a concave or convex part provided on the bed body 12, which is the oscillating member, and it is sufficient if it can fix the oscillating member in the front-rear and left-right directions in the horizontal direction.

[0026] Next, an example of a bed body 12 placed on the vertically swingable base 10 will be described. The bed body 12 is provided with a rectangular mounting engagement portion 40 that is placed on the plate member 36 of the movable mounting portion 14. The mounting engagement portion 40 has a rectangular outer shape similar to that of the plate member 36 at the top of the movable mounting portion 14, and a fence 42 is provided around the periphery of the mounting engagement portion 40 at a certain height above the mounting engagement portion 40. A portion of the fence 42 serves as a fence door 42a that can be opened and closed by sliding or swinging up and down. The bed body 12 may be a commercially available baby bed, and a commercially available baby bed may be stored inside the fence 42. When a commercially available baby bed is placed on the plate member 36 of the movable mounting portion 14, a holding member such as a hook for holding the baby bed is provided as the engagement and fixing portion. The outer shape of the mounting engagement portion 40 and the fence 42 may be larger than the outer shape of the fixed base portion 16, and may be set to match the bed body 12 and other swingable members.

[0027] Next, a method of using the vertically swingable base 10 will be described. As shown in FIG. 1 , the bed body 12 is placed on the vertically swingable base 10 and secured by the engaging and securing member 38. An infant is then laid down in the bed body 12. The stopper member 44, which stops the swinging of the movable base 14, is then released, freeing the movable base 14. The caregiver accompanying the infant gently pushes down on the bed body 12. This expands the coil springs 32 of the vertically swingable base 10, causing the bed body 12 to descend. Because two coil springs 32 are evenly spaced at each end of the movable base 14 in the longitudinal direction, the bed body 12 descends while remaining horizontal without tilting. When the force is released, the coil springs 32 contract and rise. When the swinging operation is stopped, the bed body 12 repeatedly swings up and down due to the elastic force of the coil springs 32 for a while, until the swinging gradually converges and the bed body 12 comes to rest in its original position. Furthermore, the bed body 12 can be easily pushed in accordance with the rocking cycle to continue rocking. At this time, the coil spring 32 repeatedly expands and contracts, causing the bed to rock periodically, so rocking can be continued with a small force. The rollers 34 on the side of the fixed base 16 of the movable support part 14 slide while rolling in contact with the guide parts 35 on the inner surface, so the movable support part 14 is guided to rock linearly, and slides smoothly and stably without resistance.

[0028] This allows the baby to feel a comfortable vertical rocking motion. In addition, the sound generated when the rollers 34 roll along the guide parts 35 and the bed body 12 moves up and down can be set to a frequency close to the sound heard in the human womb, providing comfort to the baby's ears as well. If the baby is light, the elasticity or number of coil springs 32 may be reduced. The elastic force of the coil springs 32 is preferably set to a low level so that a caregiver can easily vibrate the bed body 12 by placing their hand on it.

[0029] When putting the baby in or taking it out, the openable fence door 42a is opened. When rocking is not necessary, such as after the baby has fallen asleep, the stopper member 44 is projected or inserted into the insertion hole to lock the movable placing part 14, stopping the descent of the movable placing part 14 and preventing rocking.

[0030] The vertically swinging base 10 of this embodiment can be stably swung up and down with little force, providing a comfortable vertical swing for the baby, reassuring it. There are no sliding parts around the baby, and even when the bed body 12 swings up and down due to the coil springs 32, the movable base part 14 with its plate-like side faces overlaps the fixed base part 16 with its plate-like side faces, preventing accidents such as fingers or objects getting caught between the two sliding parts like a fence, ensuring high safety. Moreover, the movable base part 14 is fitted to the fixed base part 16, resulting in a small external shape and space-saving design. In particular, the movable support portion 14 is a square cylindrical body that fits comfortably around the outside of the fixed base portion 16, and is fixed to and suspended from the swing-side spring mounting portion 22, which is inserted into a long, narrow through-hole 24 formed in the side of the fixed base portion 16 and is provided so as to be movable up and down, so that the movable support portion 14 can move up and down safely while covering the fixed base portion 16, eliminating the need for extra covering members and making the entire device simple and compact. No extra covering members are required, and any bed body 12 can be placed on the up-and-down swing-type base 10 and moved up and down, allowing for a wide range of uses regardless of the object to be placed on it, such as a bed.

[0031] The vertically swinging base of this invention is not limited to the above embodiment, and the shapes of each component can be freely modified, and the positions and widths of the fixed-side spring mounting portion and the swing-side spring mounting portion for mounting the coil springs can be changed as needed. The number of coil springs can also be modified as needed, and the spring member can include elastic rubber and be replaced with a rubber member. The roller can also be provided on either of the opposing sides of the movable mounting portion and the fixed base portion, and can be configured so that the roller contacts the side surface when the movable mounting portion protrudes and retracts relative to the fixed base portion, allowing smooth vertical movement. The stopper member can be any means for stopping the swing, and can be a movable stopper member such as a pin, lever, or protrusion. [Explanation of symbols]

[0032] 10. Up and down swing base 12 Bed body 14 Movable platform 16 Fixed base 18,20 Side 22 Swing side spring mounting part 24 Through hole 26 Opening 28 Fixed side spring mounting part 32 coil spring 34 Laura 36 Plate members 38 Engagement fixing part 40 Mounting engagement portion 42 Fence 44 Stopper member

Claims

1. A vertically swingable base on which a swingable member is placed and which supports the swingable member in a state in which the swingable member can swing in the vertical direction, The base is provided with a fixed base portion installed on the floor, and a movable mounting portion that is arranged outside the fixed base portion and fits to cover the side surface of the fixed base portion, and is installed so as to be swingable up and down relative to the fixed base portion via a spring member; The movable support portion has four plate-shaped sides that fit into the fixed base portion, and the top surface of the movable support portion is provided with an engaging and fixing portion that attaches the oscillating member to the movable support portion.

2. The vertically oscillating base according to claim 1, wherein a flat plate member on which the oscillating member is placed is provided on the top surface of the movable mounting portion, and the oscillating member is held on the movable mounting portion by the engaging and fixing portion via the plate member.

3. The fixed base is formed in a rectangular cylindrical shape and placed on the floor, and a fixed-side spring mounting portion is provided on an upper portion of the fixed base, the movable mounting portion is a rectangular tubular body that is fitted to the outside of the fixed base portion with a certain clearance, and a swing-side spring mounting portion is provided at the bottom of the movable mounting portion so as to face the fixed-side spring mounting portion of the fixed base portion, A vertically long through-hole is formed on a side surface of the fixed base portion, through which the swing-side spring attachment portion is inserted so as to be movable up and down, 3. The vertically oscillating base according to claim 1 or 2, wherein the spring member is attached between the fixed side spring mounting portion and the oscillating side spring mounting portion, and the spring member expands when the oscillating side spring mounting portion descends and compresses when the oscillating side spring mounting portion ascends.

4. The fixed-side spring attachment portions are installed at two locations across the opening on the top surface of the fixed base portion, The swing-side spring attachment portion is installed at two locations across the opening on the lower surface of the movable placement portion, 4. The vertically swingable base according to claim 3, wherein the fixed side spring mounting portion and the swing side spring mounting portion are positioned opposite each other, and the spring member, a coil spring, is suspended between the fixed side spring mounting portion and the swing side spring mounting portion.

5. The vertically oscillating base according to claim 1 or 2, wherein the engaging and fixing portion is composed of a locking portion consisting of a convex or concave portion provided on the movable mounting portion and a locked portion consisting of a concave or convex portion provided on the oscillating member, and fixes the oscillating member in the front-to-back and left-to-right directions in the horizontal direction.

6. The swingable base of claim 4, wherein the swingable member is a baby bed, the baby bed or the movable support portion is provided with a fence of a certain height, the engaging and fixing portion is provided with a holding member that holds the baby bed, and the fence and the movable support portion move up and down together.

7. A vertically oscillating base as described in claim 4, wherein a roller is provided on the side of the fixed base portion facing the movable support portion, and when the movable support portion oscillates relative to the fixed base portion, the roller is rotatably arranged in contact with the side of the movable support portion.

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