Bed guardrails

Abstract

The present invention provides a bed guard rail which is independent of the thickness of a mattress, and which can suppress a gap from being generated between the mattress and a partition even when a baby or a child touches it. A bed guard rail 11 of the present invention, which is installed to a mattress M of a bed main body B, has four supports 12, 13, 14, 15, upper brackets 16 and lower brackets 17 which are connected to each of the supports, and a partition 18. The four supports 12, 13, 14, 15 have upper engaging portions 12a, 13a, 14a, 15a which are engaged to the upper surface of the mattress M in such a manner that the lower brackets 17 coincide with the side surface of the mattress M when viewed from the side surface of the mattress M, and are connected to the upper brackets 16 and the lower brackets 17 in such a manner that they are respectively positioned at the corner portions of the mattress M.

Description

Technical Field

[0001] This invention relates to a bed safety rail. Background Technology

[0002] When infants and toddlers sleep in a bed, they frequently roll over and change their body position in order to distribute their weight on the contact surface with the bedding, regulate their body temperature, and develop their muscles and motor functions. When infants and toddlers sleep in an adult bed, bed rails should be installed to limit the range of their rolling over and movement, or to prevent the bedding from slipping off.

[0003] The bed guardrail has a protective section that stands upright in the vertical direction and an insertion section connected to the protective section. The bed guardrail is held in place by the mattress by inserting the insertion section between the bed body and the mattress placed on the bed body. However, since the bed guardrail is merely sandwiched between the bed body and the mattress, it can sometimes become misaligned due to contact between a rolling infant and the protective section. Therefore, bed guardrails that prevent misalignment relative to the mattress are known.

[0004] Patent Document 1 discloses a mattress cover anti-shift device with an upwardly protruding locking protrusion at the end of the insertion part. In addition to the locking protrusion embedded in the lower surface of the mattress, the mattress cover anti-shift device is also secured to the bed body by a fastening strap that passes through the lower part of the mattress and hangs on the bed body, making it difficult to move relative to the mattress. Therefore, even if an infant or toddler comes into contact with the mattress due to rolling over, the mattress cover anti-shift device can prevent misalignment relative to the mattress.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Invention Patent Publication No. 2012-217676 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] Patent Document 1 describes a mattress cover anti-shift device in which a protective bracket rises upwards from the lower surface of the mattress. An insertion portion is connected to the lower end of the protective bracket. Furthermore, a protective cover with a mesh structure is stretched onto the protective bracket. In this mattress cover anti-shift device, if an infant or toddler comes into contact with the protective cover due to rolling over, the protective portion is maintained in position relative to the mattress, so only the fabric protective cover elastically deforms. Therefore, even though the mattress cover anti-shift device prevents misalignment relative to the mattress, as the mattress becomes thicker, a gap will form between the protective cover and the mattress, which serves as a separator for the mattress cover anti-shift device. The body may become trapped between the protective cover and the mattress, or the bedding may fall between the protective cover and the mattress. Furthermore, the fixing straps of the mattress cover anti-shift device may loosen during use, potentially creating a gap between the protective cover and the mattress.

[0010] The purpose of this invention is to provide a bed guardrail that is independent of the thickness of the mattress and can suppress the formation of gaps between the mattress and the guardrail even if a portion of the divider is elastically deformed.

[0011] Methods for solving problems

[0012] The inventors have researched a bed rail that, regardless of mattress thickness, can suppress gaps between the mattress and the divider even when in contact with infants and young children. Through in-depth research, the inventors conceived of the following structure.

[0013] An embodiment of the present invention provides a bed guardrail, which is installed on a mattress. The bed guardrail includes: at least four posts extending vertically; an upper support connecting the upper ends of adjacent posts; a lower support connecting the lower ends of adjacent posts; and a divider supported by the upper and lower supports. Each of the four posts has an upper engaging portion that engages with the upper surface of the mattress such that, when viewed from the side of the mattress, the lower support overlaps with the side of the mattress. The four posts are also connected to the upper and lower supports at the corners of the mattress.

[0014] In the above structure, four support pillars, interconnected by the upper and lower supports, are positioned at the four corners of the mattress. Furthermore, the four support pillars are engaged with the upper surface of the mattress via the upper engaging portion. In this configuration, the bed rails are positioned such that the lower support contacts at least three sides of the mattress, thus preventing movement of the bed rails in two directions perpendicular to the sides of the mattress.

[0015] Viewed from the side of the mattress, the depth of the gap between the mattress and the divider is proportional to the vertical width of the divider, which coincides with the side of the mattress. Since the bed rail engages with the upper surface of the mattress, the lower support can be positioned near the upper surface of the mattress regardless of the mattress's thickness. Thus, by positioning the lower support near the upper surface of the mattress and engaging it with the side of the mattress, the bed rail suppresses movement of the bed rail relative to the mattress in both the lateral and longitudinal directions, thereby reducing the depth of the gap between the mattress and the divider. Therefore, regardless of the mattress's thickness, even if an infant comes into contact with the divider, a gap between the mattress and the divider can be suppressed.

[0016] According to other aspects, the bed rail of the present invention may include the following structure: It also includes: a lower engaging portion that engages with the lower surface of the mattress; a support post connector that connects the lower end of the support post and the lower engaging portion, and allows the lower engaging portion to move vertically relative to the support post. The support post connector adjusts the spacing between the upper engaging portion and the lower engaging portion in such a way that the mattress is sandwiched between the upper engaging portion and the lower engaging portion.

[0017] In the above structure, by adjusting the position of the lower engaging portion relative to the support column via the support column connector, the upper engaging portion and the lower engaging portion located at the lower end of the support column can be engaged with the mattress. That is, the bed rail can clamp a mattress of any thickness via the upper and lower engaging portions. By clamping the mattress from above and below, the bed rail can suppress vertical movement of the support column relative to the mattress. Therefore, regardless of the mattress thickness, even if an infant comes into contact with the mattress, gaps between the mattress and the separator can be suppressed.

[0018] According to other aspects, the bed guardrail of the present invention may include the following structure: the support post connector is configured to be detachable from the support post.

[0019] According to the above structure, in the bed rail, by separating the support post connector from the posts, the four posts, the upper support and the lower support connected to the four posts, and the divider can be removed from the mattress while the lower locking part is engaged with the lower surface of the mattress. The bed rail can be removed from the mattress without disassembling it. Therefore, the bed rail installed on the mattress can be moved to the floor or other surfaces while maintaining its shape, thus enabling its use as a playpen.

[0020] According to other aspects, the bed guardrail of the present invention may include the following structure: It has a lower engaging member connecting the lower engaging portions to each other. With the lower engaging portions located diagonally opposite each other engaged with the lower surface of the mattress, the lower engaging member connects the lower engaging portions to each other.

[0021] In the above structure, the lower locking portions located diagonally on the lower surface of the mattress are connected to each other to fix the position of the lower locking portions relative to the mattress and the relative position of the lower locking portions to each other. This suppresses movement of the bed rails relative to the mattress in the vertical, horizontal, and front-back directions. Therefore, regardless of the thickness of the mattress, gaps between the mattress and the divider can be suppressed even if an infant comes into contact with it.

[0022] According to other aspects, the bed guardrail of the present invention may include the following structure: Of the four support posts, a portion of the upper support, lower support, and partition located between adjacent support posts constitutes a door.

[0023] In the above structure, even if the bed rail is configured as a fence without openings when viewed from the side of the mattress, access to the inside of the fence can be easily achieved through a closable door. Furthermore, the bed rail has, for example, the door between two posts, the upper and lower supports connecting to one post, and the upper and lower supports connecting to the other post. In this case, the two posts suppress their swaying relative to the mattress through the upper and lower supports connected to them respectively. With this configuration, the bed rail can suppress the formation of gaps between the mattress and the divider even with the door.

[0024] According to other aspects, the bed guardrail of the present invention may include the following structure. The bed guardrail further includes a reinforcing member connected to the lower surface of the upper engaging portion. The reinforcing member is configured such that the difference between the lower surface of the reinforcing member connected to the lower surface of the upper engaging portion and the lower end of the lower support is within a predetermined range.

[0025] In the above structure, the bed guardrail is constructed by installing the reinforcing member on the lower surface of the upper engaging portion, ensuring that the difference between the lower surface of the four support pillars (which serve as the lower surface of the reinforcing member) and the lower end of the lower support is within a specified range. Therefore, when the bed guardrail is installed on the floor or similar surface as a playpen, the reinforcing member can stabilize the posture of the four support pillars.

[0026] The technical terms used in this specification are for the purpose of defining specific embodiments only and are not intended to limit the invention.

[0027] In this specification, the terms “including,” “comprising,” or “having,” and variations thereof, are used to identify the presence of the described features, processes, operations, elements, components, and / or their equivalents, which may include one or more steps, actions, elements, components, and / or groups thereof.

[0028] In this specification, the terms "installation," "connection," "coupling," and / or their equivalents are used in a broad sense to include both "direct and indirect" installation, connection, and coupling. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but may include direct or indirect electrical connections or couplings. Additionally, in this specification, "rotation" means rotation in at least one direction or another within a specified angular range.

[0029] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0030] The effects of the invention

[0031] According to one embodiment of the present invention, the bed rail is mounted on the upper surface of the mattress with its lower support located near the upper surface of the mattress and coinciding with the four sides of the mattress when viewed from the side. Therefore, regardless of the thickness of the mattress, gaps between the mattress and the divider can be suppressed even if an infant comes into contact with it. Attached Figure Description

[0032] Figure 1 This is a perspective view of a bed guardrail according to an embodiment of the present invention.

[0033] Figure 2 This is a top view of the lower locking part of the bed guardrail according to an embodiment of the present invention.

[0034] Figure 3 This is a side view of the bed guardrail, illustrating the step of arranging the bed guardrail according to an embodiment of the present invention on the mattress.

[0035] Figure 4 This is a side view showing the step of fixing the bed guardrail of the embodiment of the present invention to the mattress.

[0036] Figure 5This is a side view showing the state in which the bed guardrail of an embodiment of the present invention is installed on the mattress.

[0037] Figure 6 yes Figure 5 VV sectional view in the image.

[0038] Figure 7 This is a side view of a bed guardrail with a door, according to a modified example 1 of the embodiments of the present invention.

[0039] Figure 8 This is a partially enlarged cross-sectional view of the support pillar of the bed guardrail, which is a modified example 2 of the embodiments of the present invention.

[0040] Figure 9 This is a perspective view of the bed guardrail of a modified embodiment 3 of the present invention.

[0041] Symbol Explanation

[0042] 11, 11A, 11B, 11C: Bed safety rails;

[0043] 12: The First Pillar;

[0044] 12a: First upper locking part;

[0045] 13: The Second Pillar;

[0046] 13a: Second upper locking part;

[0047] 14: The Third Pillar;

[0048] 14a: Third upper locking part;

[0049] 15: The Fourth Pillar;

[0050] 15a: Fourth upper locking part;

[0051] 16, 16a, 16b: Upper support structure;

[0052] 17: Lower support;

[0053] 18: Separator;

[0054] 19: First support connector;

[0055] 20: Second pillar connector;

[0056] 21: Third pillar connector;

[0057] 22: Fourth pillar connector;

[0058] 23: First lower card section;

[0059] 24: Second lower locking part;

[0060] 25: Third lower card part;

[0061] 26: Fourth lower card section;

[0062] 27: First lower locking part connector;

[0063] 28: Second lower locking part connector;

[0064] 29: Door;

[0065] 29a: Frame;

[0066] 29b: Door partition;

[0067] 29c: Hinge;

[0068] B: Bed body;

[0069] M: Mattress. Detailed Implementation

[0070] Hereinafter, the bed guardrail 11, which is an embodiment of the bed guardrail of the present invention, will be described with reference to the accompanying drawings. In each drawing, the same symbol is used to mark the same part, and the same part will not be described repeatedly. The dimensions of the structural components in each drawing do not faithfully represent the actual dimensions of the constituent components or the dimensional ratios of each structural component.

[0071] <Implementation Method>

[0072] <Overall Structure>

[0073] use Figure 1 and Figure 2 The bed guardrail 11, which is an embodiment 1 of the present invention, will be described. Figure 1 This is a perspective view of the bed guardrail 11 according to an embodiment of the present invention. Figure 2 This is a top view of the lower locking parts 23, 24, 25, and 26 of the bed guardrail 11.

[0074] like Figure 1As shown, the bed guardrail 11 is a divider that restricts the range of movement of infants and young children. The bed guardrail 11 is installed on the mattress M, which is placed on the mounting surface of the bed body B. The bed guardrail 11 includes: a first support post 12, a second support post 13, a third support post 14, a fourth support post 15, four upper supports 16, four lower supports 17, a divider 18, a first support post connector 19, a second support post connector 20, a third support post connector 21, a fourth support post connector 22, a first lower locking part 23, a second lower locking part 24, a third lower locking part 25, a fourth lower locking part 26, a first lower locking part connector 27, and a second lower locking part connector 28. The bed guardrail 11 is configured such that the first support post 12, the second support post 13, the third support post 14, and the fourth support post 15 can be arranged at the corners of the mattress M.

[0075] First pillar 12, second pillar 13, third pillar 14, and fourth pillar 15 support the upper support 16 and the lower support 17. First pillar 12, second pillar 13, third pillar 14, and fourth pillar 15 are pillars of the same height. First pillar 12, second pillar 13, third pillar 14, and fourth pillar 15 have a shape in which the plate-like members are bent approximately vertically when viewed from the axial direction. First pillar 12, second pillar 13, third pillar 14, and fourth pillar 15 are, for example, made of resin.

[0076] The first support post 12, the second support post 13, the third support post 14, and the fourth support post 15 are arranged in a positional relationship that allows them to be installed at the corners of the mattress M. The first support post 12 is arranged adjacent to the second support post 13 and the fourth support post 15. The third support post 14 is arranged adjacent to the second support post 13 and the fourth support post 15. The bed guardrail 11 is arranged in a rectangular shape, for example, with the first support post 12 as a reference, in a clockwise order of the second support post 13, the third support post 14, and the fourth support post 15. The first support post 12 and the third support post 14 are located on the diagonal of the rectangle. The second support post 13 and the fourth support post 15 are located on the diagonal of the rectangle.

[0077] Four upper supports 16 are respectively connected to the first pillar 12, the second pillar 13, the third pillar 14, and the fourth pillar 15. The two ends of one upper support 16 are connected to the upper ends of the first pillar 12 and the second pillar 13, respectively. The two ends of another upper support 16 are connected to the upper ends of the second pillar 13 and the third pillar 14, respectively. The two ends of yet another upper support 16 are connected to the upper ends of the third pillar 14 and the fourth pillar 15, respectively. The two ends of yet another upper support 16 are connected to the upper ends of the fourth pillar 15 and the first pillar 12, respectively. The upper supports 16 are made of, for example, resin or aluminum alloy. The upper ends of spacers 18 are mounted on the four upper supports 16. Therefore, the four upper supports 16 are arranged in a ring shape by the four pillars.

[0078] Four lower supports 17 are respectively connected to the first pillar 12, the second pillar 13, the third pillar 14, and the fourth pillar 15. The two ends of one lower support 17 are connected to the lower ends of the first pillar 12 and the second pillar 13, respectively. The two ends of another lower support 17 are connected to the lower ends of the second pillar 13 and the third pillar 14, respectively. The two ends of yet another lower support 17 are connected to the lower ends of the third pillar 14 and the fourth pillar 15, respectively. The two ends of yet another lower support 17 are connected to the lower ends of the fourth pillar 15 and the first pillar 12, respectively. The lower supports 17 are made of, for example, resin or aluminum alloy. The lower ends of spacers 18 are respectively installed on the four lower supports 17. Thus, the four lower supports 17 are arranged in a ring shape by the four pillars.

[0079] The separator 18 separates the upper support 16 from the lower support 17, and the first pillar 12 from the second pillar 13, the second pillar 13 from the third pillar 14, the third pillar 14 from the fourth pillar 15, and the fourth pillar 15 from the first pillar 12. The upper end of the separator 18 is installed on the upper support 16. The lower end of the separator 18 is installed on the lower support 17.

[0080] A first upper engaging portion 12a is provided at the lower end of the first pillar 12, engaging with the upper surface of the mattress M. A second upper engaging portion 13a is provided at the lower end of the second pillar 13, engaging with the upper surface of the mattress M. A third upper engaging portion 14a is provided at the lower end of the third pillar 14, engaging with the upper surface of the mattress M. A fourth upper engaging portion 15a is provided at the lower end of the fourth pillar 15, engaging with the upper surface of the mattress M. The first upper engaging portion 12a, the second upper engaging portion 13a, the third upper engaging portion 14a, and the fourth upper engaging portion 15a are, for example, plate-like members extending in the direction perpendicular to the corresponding pillars 12, 13, 14, and 15 and in the direction of the mattress M. In each of the support pillars 12, 13, 14, and 15, a recess for corner insertion of the mattress M is formed by the lower surfaces of the first upper engaging portion 12a, the second upper engaging portion 13a, the third upper engaging portion 14a, and the fourth upper engaging portion 15a, and the side surfaces of each support pillar 12, 13, 14, and 15. Each support pillar 12, 13, 14, and 15 is positioned relative to the mattress M by inserting the corner of the mattress M into the recess.

[0081] The first upper engaging portion 12a, the second upper engaging portion 13a, the third upper engaging portion 14a, and the fourth upper engaging portion 15a are arranged on each of the pillars 12, 13, 14, and 15 such that, when viewed from the side of the mattress M, the lower supports 17 connecting to each pillar 12, 13, 14, and 15 overlap with the side of the mattress M. In this embodiment, the first upper engaging portion 12a, the second upper engaging portion 13a, the third upper engaging portion 14a, and the fourth upper engaging portion 15a are arranged on each of the pillars 12, 13, 14, and 15 such that the upper end of each lower support 17 is at the same height (vertical position) as the upper surface of the mattress M.

[0082] The first support member 19 connects the first support 12 and the first lower engagement portion 23. The second support member 20 connects the second support 13 and the second lower engagement portion 24. The third support member 21 connects the third support 14 and the third lower engagement portion 25. The fourth support member 22 connects the fourth support 15 and the fourth lower engagement portion 26. The first support member 19, the second support member 20, the third support member 21, and the fourth support member 22 are, for example, composed of a belt member with adjustable length. The first support member 19, the second support member 20, the third support member 21, and the fourth support member 22 are configured to allow adjustment of the vertical position of each lower engagement portion 23, 24, 25, 26 relative to each support 12, 13, 14, 15. Furthermore, the first pillar connector 19, the second pillar connector 20, the third pillar connector 21, and the fourth pillar connector 22 are configured to be directly connected to the lower ends of each pillar 12, 13, 14, and 15.

[0083] like Figure 2 As shown, the first lower engaging portion 23, the second lower engaging portion 24, the third lower engaging portion 25, and the fourth lower engaging portion 26 are components that engage with the lower surface of the mattress M. The first lower engaging portion 23, the second lower engaging portion 24, the third lower engaging portion 25, and the fourth lower engaging portion 26 are, for example, plate-shaped components. Each lower engaging portion 23, 24, 25, and 26 has: a lower engaging surface 23a, 24a, 25a, and 26a that contacts the lower surface of the mattress M; a first side engaging surface 23b, 24b, 25b, and 26b that contacts one side of a corner of the mattress M; and a second side engaging surface 23c, 24c, 25c, and 26c that contacts the other side of a corner of the mattress M. The first side engagement surfaces 23b, 24b, 25b, 26b and the second side engagement surfaces 23c, 24c, 25c, 26c extend in a direction substantially perpendicular to the lower engagement surfaces 23a, 24a, 25a, 26a. Furthermore, each lower engagement surface 23a, 24a, 25a, 26a is configured to connect the support connecting members 19, 20, 21, 22 to the first lower engagement part connecting member 27 or the second lower engagement part connecting member 28.

[0084] The first lower engaging portion 23 is adjusted in vertical position relative to the first upper engaging portion 12a via the first support connecting member 19. The second lower engaging portion 24 is adjusted in vertical position relative to the second upper engaging portion 13a via the second support connecting member 20. The third lower engaging portion 25 is adjusted in vertical position relative to the third upper engaging portion 14a via the third support connecting member 21. The fourth lower engaging portion 26 is adjusted in vertical position relative to the fourth upper engaging portion 15a via the fourth support connecting member 22.

[0085] Install on the bed

[0086] Next, use Figures 1 to 6 Instructions on how to install the bed guardrail 11 onto the mattress M. Figure 3 This is a side view of the bed guardrail 11, showing the steps of configuring the bed guardrail 11 on the mattress M. Figure 4 This is a side view showing the steps of fixing the bed guardrail 11 to the mattress M. Figure 5 This is a side view showing the bed guardrail 11 installed on the mattress M. Figure 6 yes Figure 5 The image shows a VV sectional view. Mattress M is placed on the mounting surface of bed body B. The thickness of mattress M is t.

[0087] like Figure 3 As shown, in the bed guardrail 11, before installation onto the mattress M, the vertical positions of the first lower locking part 23, the second lower locking part 24, the third lower locking part 25, and the fourth lower locking part 26 are adjusted. The first support connector 19 is adjusted so that the gap between the first lower locking part 23 and the first upper locking part 12a is a length t1 greater than the thickness t of the mattress M. The second support connector 20 is adjusted so that the gap between the second lower locking part 24 and the second upper locking part 13a is a length t1 greater than the thickness t of the mattress M. The third support connector 21 is adjusted so that the gap between the third lower locking part 25 and the third upper locking part 14a is a length t1 greater than the thickness t of the mattress M. The fourth support connector 22 is adjusted so that the gap between the fourth lower locking part 26 and the fourth upper locking part 15a is a length t1 greater than the thickness t of the mattress M.

[0088] Next, the first support column 12, the second support column 13, the third support column 14, and the fourth support column 15 are respectively positioned at the corners of the mattress M. The first support column 12 engages the first upper engagement portion 12a with the upper surface of one corner of the mattress M. The second support column 13 engages the second upper engagement portion 13a with the upper surface of one corner of the mattress M. The third support column 14 engages the third upper engagement portion 14a with the upper surface of one corner of the mattress M. The fourth support column 15 engages the fourth upper engagement portion 15a with the upper surface of one corner of the mattress M (see reference). Figure 1Then, the first lower locking part 23, the second lower locking part 24, the third lower locking part 25, and the fourth lower locking part 26 are inserted between the lower surface of each corner of the mattress M and the mounting surface of the bed body B.

[0089] like Figure 6 As shown, the first pillar 12, the second pillar 13, the third pillar 14, and the fourth pillar 15 are arranged in the corners of the bed guardrail 11 of the mattress M, forming four ring-shaped lower supports 17 that contact the four sides of the mattress M respectively. That is, the bed guardrail 11 clamps the mattress M from the left and right and front and back directions through the four lower supports 17. Thus, the four lower supports 17 restrict the movement of the bed guardrail 11 relative to the mattress M in the left and right and front and back directions.

[0090] like Figure 4 As shown, the first pillar connector 19 is adjusted so that the gap between the first lower engaging portion 23 and the first upper engaging portion 12a is less than the thickness t of the mattress M. The second pillar connector 20 is adjusted so that the gap between the second lower engaging portion 24 and the second upper engaging portion 13a is less than the thickness t of the mattress M. The third pillar connector 21 is adjusted so that the gap between the third lower engaging portion 25 and the third upper engaging portion 14a is less than the thickness t of the mattress M. The fourth pillar connector 22 is adjusted so that the gap between the fourth lower engaging portion 26 and the fourth upper engaging portion 15a is less than the thickness t of the mattress M.

[0091] In the bed guardrail 11 disposed on the upper surface of the mattress M, four upper engaging portions 12a, 13a, 14a, 15a and four lower engaging portions 23, 24, 25, 26 contact the upper and lower surfaces of the four corners of the mattress M. That is, the bed guardrail 11 clamps the mattress M from above and below through the four upper engaging portions 12a, 13a, 14a, 15a and the four lower engaging portions 23, 24, 25, 26. The recesses of each upper engaging portion 12a, 13a, 14a, 15a engage with the upper surface of the mattress M and the two sides constituting the corners of the mattress M. Furthermore, the lower engaging surfaces 23a, 24a, 25a, and 26a of each of the lower engaging portions 23, 24, 25, and 26 engage with the lower surface of the mattress M, and the first side engaging surfaces 23b, 24b, 25b, and 26b and the second side engaging surfaces 23c, 24c, 25c, and 26c engage with the two sides constituting the corners of the mattress M. Thus, the four upper engaging portions 12a, 13a, 14a, and 15a and the four lower engaging portions restrict the movement of the bed guardrail 11 relative to the mattress M in the left-right, front-back, and up-down directions.

[0092] In addition, such as Figure 1As shown, the first lower engaging portion 23 and the third lower engaging portion 25 can also be connected between the lower surface of the mattress M and the mounting surface of the bed body B via the first lower engaging portion connector 27. Alternatively, the second lower engaging portion 24 and the fourth lower engaging portion 26 can be connected between the lower surface of the mattress M and the mounting surface of the bed body B via the second lower engaging portion connector 28. Thus, the relative movement of the first lower engaging portion 23 and the third lower engaging portion 25, as well as their vertical movement relative to the mattress M, is limited by the first lower engaging portion connector 27. The relative movement of the second lower engaging portion 24 and the fourth lower engaging portion 26, as well as their vertical movement relative to the mattress M, is limited by the second lower engaging portion connector 28.

[0093] The bed guardrail 11 is positioned relative to the upper surface of the mattress M by means of the first support member 19, the second support member 20, the third support member 21, and the fourth support member 22, which are engaged with the upper engagement parts 12a, 13a, 14a, and 15a. The lower support member 17 is located near the upper surface of the mattress M. In this embodiment, the bed guardrail 11 is positioned on the mattress M such that the upper end of the lower support member 17 coincides with the upper surface of the mattress M when viewed from the side.

[0094] Thus, by placing the supports 12, 13, 14, and 15 on the upper surface of the mattress M, the lower support 17 can be positioned near the upper surface of the mattress M and on the side of the mattress M, regardless of the thickness t of the mattress M. That is, the lower support 17 of the bed rail 11 engages with the mattress M in a manner that minimizes the overlap between the divider 18 and the side of the mattress M as viewed from the side. Consequently, the bed rail 11 can be installed on the mattress M in a way that reduces the depth of the gap between the mattress M and the divider 18. Furthermore, the four lower supports 17 located in the four directions of the bed rail 11 engage with the four sides of the mattress M in the four directions, respectively. Thus, the movement of the bed rail 11 relative to the mattress M in the four directions—left-right and front-back—is restricted by the four lower supports 17. In other words, the four lower supports 17 of the bed rail 11 do not separate from the mattress M.

[0095] Furthermore, the bed rail 11 can clamp a mattress M of any thickness via the upper engaging portions 12a, 13a, 14a, 15a and the lower engaging portions 23, 24, 25, 26. Thus, the upper engaging portions 12a, 13a, 14a, 15a and the lower engaging portions 23, 24, 25, 26 restrict the vertical movement of the bed rail 11 relative to the mattress M. Moreover, when the lower engaging portions 23, 24, 25, 26 are connected via the first lower engaging portion connector 27 and the second lower engaging portion connector 28, the vertical movement of the bed rail relative to the mattress M is further restricted. Therefore, the bed rail 11 is difficult to move relative to the mattress M in the vertical, front-back, and left-right directions.

[0096] Furthermore, the divider 18 is supported by an upper support 16 and a lower support 17. Therefore, when an infant comes into contact with the divider 18, it elastically deforms between the upper support 16 and the lower support 17. However, even if the divider 18 elastically deforms due to the infant rolling over, the lower end of the divider 18 remains near the upper surface of the mattress M where the lower support 17 is located. Therefore, regardless of the thickness of the mattress M, even if part of the divider 18 elastically deforms, a gap between the mattress M and the divider 18 can be suppressed. Thus, regardless of the thickness of the mattress M, even when an infant comes into contact with the divider, a gap between the mattress M and the divider 18 can be suppressed.

[0097] <Modification 1 of the Implementation Method>

[0098] use Figure 7 The bed guardrail 11A, a modified example of the bed guardrail 11, will be described. Figure 7 This is a side view of a modified example 1 of the present invention, showing a bed guardrail 11A with a door 29.

[0099] like Figure 7 As shown, the bed guardrail 11A has a door 29. The door 29 is located between at least one of the following: between the first support 12 and the second support 13; between the second support 13 and the third support 14; between the third support 14 and the fourth support 15; or between the fourth support 15 and the first support 12. In this embodiment, the door 29 is located between the first support 12 and the second support 13. The door 29 is composed of a frame 29a and a door divider 29b. The door divider 29b is provided on the frame 29a of the door 29.

[0100] The upper support 16 connecting the first pillar 12 and the second pillar 13 is divided into an upper support 16a connected to the first pillar 12 and an upper support 16b connected to the second pillar 13. Furthermore, partitions 18 are respectively provided in the upper support 16 and the lower support 17. A door 29 is located between the upper support 16a connected to the first pillar 12 and the upper support 16b connected to the second pillar 13. The door 29 is supported by hinges 29c between the upper support 16b connected to the second pillar 13 and the lower support 17. The door 29 is configured to open and close between the first pillar 12 and the second pillar 13.

[0101] The bed rail 11A, constructed in this way, even if it is configured as a railing without an opening when viewed from the side of the mattress M, allows easy access to the inside of the railing through the openable and closable door 29. This improves user convenience. Furthermore, the first support post 12 is connected to an upper support 16a and a lower support 17, and the second support post 13 is connected to an upper support 16b and a lower support 17. Thus, the first and second supports 12 and 13, respectively connected to the upper and lower supports 16 and 17, suppress their swaying relative to the mattress M. With this configuration, the bed rail 11A, even with the door 29, can suppress the formation of a gap between the mattress M and the divider 18.

[0102] <Modification 2 of the Implementation Method>

[0103] use Figure 8 The bed guardrail 11B, a variation of the bed guardrail 11, will be described. Figure 8 This is a partially enlarged cross-sectional view of the support column of the bed guardrail 11B, which is a modified example 2 of the present invention.

[0104] The bed guardrail 11B can be used as a play fence to enclose the play area for infants and toddlers. The bed guardrail 11B also has a reinforcement 30 that connects to the lower surface of each of the upper engaging parts 12a, 13a, 14a, 15a.

[0105] The reinforcement member 30 is a component that stabilizes each of the supports 12, 13, 14, and 15. The reinforcement member 30 is configured such that, when viewed along the axial direction of each of the supports 12, 13, 14, and 15, it overlaps with each of the upper engaging portions 12a, 13a, 14a, and 15a, respectively. The reinforcement member 30 is configured to be installed in a recess in each of the supports 12, 13, 14, and 15, surrounded by the lower surfaces of each of the upper engaging portions 12a, 13a, 14a, and 15a and the sides of each of the supports 12, 13, 14, and 15. The reinforcement member 30 is, for example, shaped to fit into the recess. The reinforcement member 30 is configured such that, when installed on the lower surface of each of the upper engaging portions 12a, 13a, 14a, and 15a, the height difference between the lower surface of the reinforcement member 30 and the lower end of the lower support 17 is within a specified range. Therefore, the reinforcement member 30 can stabilize the posture of each of the supports 12, 13, 14, and 15. In addition, the reinforcement 30 may also have an anti-slip part on the lower surface.

[0106] <Modification 3 of the Implementation>

[0107] use Figure 9 The bed guardrail 11C, a variation of the bed guardrail 11, will be described. Figure 9 This is a perspective view of the bed guardrail 11C of a modified embodiment 3 of the present invention.

[0108] The bed guardrail 11C is a structure consisting of four supports 12, 13, 14, and 15 located at the four corners of the mattress M, connected by three upper supports 16 and four lower supports 17. The bed guardrail 11C surrounds three sides of the mattress M with dividers 18. In this embodiment, the bed guardrail 11C does not have an upper support 16 or divider 18 on one side along the length of the mattress M. That is, when viewed from the side of the mattress M, the bed guardrail 11C has an opening. Furthermore, the bed guardrail 11C engages with the four lower supports 17 on the four sides of the mattress M. This restricts the movement of the bed guardrail 11C relative to the mattress M in the left-right, front-back, and up-down directions.

[0109] <Other Implementation Methods>

[0110] In the above embodiments, a mesh fabric divider 18 is provided between the upper support 16 and the lower support 17 of the bed guardrails 11, 11A, and 11B. However, the divider can be made of any soft fabric.

[0111] In the above embodiments, in the bed guardrails 11, 11A, and 11B, a first lower locking part 23, a second lower locking part 24, a third lower locking part 25, and a fourth lower locking part 26 are connected to each of the supports 12, 13, 14, and 15 via a first support member 19, a second support member 20, a third support member 21, and a fourth support member 22. However, the first support member 19, the second support member 20, the third support member 21, and the fourth support member 22 can also be configured to be detachable from each of the supports 12, 13, 14, and 15. Therefore, with the first lower locking part 23, the second lower locking part 24, the third lower locking part 25, and the fourth lower locking part 26 engaged with the lower surface of the mattress M, the bed guardrails 11, 11A, and 11B can be removed from the mattress M.

[0112] In the above embodiments, in the bed guardrails 11, 11A, and 11B, the first lower engaging portion 23, the second lower engaging portion 24, the third lower engaging portion 25, and the fourth lower engaging portion 26 are inserted between the mounting surface of the bed body B and the mattress M. Each lower engaging portion 23, 24, 25, and 26 may also have protrusions or recesses that increase friction relative to the mattress M.

[0113] In a variation of embodiment 2 described above, door 29 is configured to be openable and closable at any time. However, the door may also have a locking mechanism. The locking mechanism may be, for example, a push-button type, a sliding type, or a bolt type. In bed safety rails, the locking mechanism can prevent young children from opening the door.

[0114] In the bed rails 11, 11A, and 11B of the above embodiments, the upper support 16 and the lower support 17 are configured to be assembled by the user onto each of the supports 12, 13, 14, and 15. Furthermore, the divider 18 is configured to be assembled by the user onto the upper support 16 and the lower support 17. Additionally, the upper support 16 and the lower support 17 can also be configured to be interchangeable with lengths matching the size of the mattress M.

[0115] The embodiments of the present invention have been described above, but these embodiments are merely illustrative examples for implementing the present invention. Therefore, the present invention is not limited to the above embodiments, and can be implemented by appropriate modifications without departing from its spirit.

Claims

1. A bed safety rail, installed on the mattress of a bed, wherein the bed safety rail has: At least four pillars, extending vertically; The upper support connects to the upper ends of the adjacent pillars respectively; The lower support connects to the lower ends of the adjacent pillars respectively; The separator is supported by the upper bracket and the lower bracket; characterized in that, The four pillars have upper engaging portions that engage with the upper surface of the mattress such that, when viewed from the side of the mattress, the lower support overlaps with the side of the mattress; the four pillars are also connected to the upper support and the lower support in a manner that they are respectively located at the corners of the mattress.

2. The bed guardrail according to claim 1, characterized in that, It also has: The lower locking part engages with the lower surface of the mattress; A support column connector connects the lower end of the support column and the lower engaging portion, and allows the lower engaging portion to move relative to the support column in the vertical direction; The support connector adjusts the spacing between the upper and lower locking portions by clamping the mattress between them.

3. The bed guardrail according to claim 2, characterized in that, The support connector is configured to be detachable from the support.

4. The bed guardrail according to any one of claims 1 to 3, characterized in that, It has a lower engaging portion connecting member, which connects the lower engaging portions to each other; With the lower engaging portions located diagonally opposite each other engaged with the lower surface of the mattress, the lower engaging portion connector links the lower engaging portions together.

5. The bed guardrail according to claim 1, characterized in that, Of the four pillars, a portion of the upper support, lower support, and partition between adjacent pillars constitutes a door.

6. The bed guardrail according to claim 1, characterized in that, It also has a reinforcing member, which is connected to the lower surface of the upper engaging portion; The reinforcement is configured such that the difference between the lower surface of the reinforcement, which is connected to the lower surface of the upper engagement portion, and the lower end of the lower bracket is within a specified range.

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