Mattress slip prevention device and bed equipped with same

Abstract

To provide a mattress deviation stopper capable of facilitating removing while preventing unnecessary removal.SOLUTION: There are provided: a base part 25 to be attached to a bed 1 side; and a stopper part 27 raised from the base part 25, and suppressing deviation of a mattress 9 at the bed 1 side. The base part 25 comprises: an upper engaging part 29 inserted into an upper engaged part 17 comprising an opening at the bed 1 side, and engaged with a marginal part 17a of the upper engaged part 17 from a lower side so as to resist outward force acting on the stopper part 27; a lower engaging part 31 engaged with a lower engaged part 19 at the bed 1 side, and holding an engagement state of the upper engaging part 29; and a bending part 33 disposed between the upper engaging part 29 and the lower engaging part 31, and capable of releasing engagement of the lower engaging part 31 by bending.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a mattress slippage prevention device that prevents a mattress from slipping, and a bed equipped with the same. [Background technology]

[0002] A conventional mattress slippage prevention device is described, for example, in Patent Document 1. This mattress slippage prevention device has an attachment part for attachment to the bed side and a stop plate erected from the attachment part, and prevents the mattress from slipping by contacting the stop plate.

[0003] Such a mattress slippage prevention device has mounting parts that engage with the bed side at the top and bottom, and has an opening between these upper and lower engaging parts, making it possible to easily remove the device by applying an outward force to the stop plate.

[0004] However, the conventional mattress stopper has the risk of accidentally coming off the bed when an outward force is applied from the mattress to the stop plate during use of the bed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2012-70866 Summary of the Invention [Problem to be solved by the invention]

[0006] The problem to be solved is that there is a risk that the mattress stopper, which is easily removable, may come off accidentally. [Means for solving the problem]

[0007] The present invention comprises a base portion to be attached to the bed side, and a stopper portion erected from the base portion to suppress displacement of the mattress on the bed side, the base portion being an upper engaging portion that is inserted into an upper engaged portion formed by an opening on the bed side and engaging with an edge of the upper engaged portion from below to resist an outward force acting on the stopper portion, and Located below the upper engaged portion Lower side engaged Department a lower engaging portion that engages with the upper engaging portion to maintain the engaged state of the upper engaging portion, and a flexible portion that is provided between the upper engaging portion and the lower engaging portion and that can release the engagement of the lower engaging portion by being flexible. The upper engaging portion has a main body portion extending in the width direction of the bed and a claw portion disposed at the tip of the main body portion and displaced downward relative to the main body portion, and inserted into the upper engaged portion, and the claw portion has a tip portion abutted from below against an edge portion located on the inside in the width direction of the upper engaged portion, and a base end portion abutted from the inside in the width direction against an edge portion located on the outside in the width direction of the upper engaged portion. To provide a mattress stopper.

[0008] The present invention also provides a bed equipped with the mattress slippage prevention device. [Effects of the Invention]

[0009] According to the present invention, the mattress slippage prevention device can be easily removed while preventing the mattress slippage prevention device from accidentally coming off. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing a bed having a mattress slippage prevention device (Example 1). [Figure 2] FIG. 2 is a perspective view of the main part of the bed of FIG. 1 (Embodiment 1). [Figure 3] FIG. 3 is a cross-sectional view of a main part of the bed of FIG. 2 (Example 1). [Figure 4] 1A and 1B are perspective views of the attachment portion of the mattress fastener, where (A) shows the front side and (B) shows the back side (Example 1). [Figure 5] FIG. 1 is a perspective view showing a mattress fastener (Example 1). [Figure 6] FIG. 1 is a cross-sectional view of a main part of a bed showing removal of a mattress fastener (Embodiment 1). DETAILED DESCRIPTION OF THE INVENTION

[0011] The purpose of preventing the mattress slippage prevention device from coming off accidentally and facilitating its removal is achieved by having the upper engaging part resist the outward force acting on the stopper part.

[0012] That is, the mattress slippage prevention device (13) comprises a base portion (25) for attachment to the bed (1) side, and a stopper portion (27) erected from the base portion (25) for preventing slippage of the mattress (9) on the bed (1) side.

[0013] The base portion (25) has an upper engaging portion (29), a lower engaging portion (31), and a flexible portion (33). The upper engaging portion (29) is inserted into the upper engaged portion (17) formed by an opening on the bed (1) side and engages with the edge portion (17a) of the upper engaged portion (17) from below, thereby resisting outward forces acting on the stopper portion (27). The lower engaging portion (31) engages with the lower engaged portion (19) on the bed (1) side to maintain the engaged state of the upper engaging portion (29). The flexible portion (33) is provided between the upper engaging portion (29) and the lower engaging portion (31) and allows the engagement of the lower engaging portion (31) to be released by its flexibility.

[0014] The flexible portion (33) may be thin-walled, have an opening, or be bellows-shaped, as long as it is more flexible than the other portions of the base portion (25).

[0015] The base portion (25) may be provided with a protrusion (35) that protrudes downward from the lower engagement portion (31) along the flexible portion (33) and is used for operation when the flexible portion (33) is bent. [Example]

[0016] FIG. 1 is a perspective view showing a bed having a mattress slippage prevention device according to a first embodiment of the present invention.

[0017] The bed 1 of this embodiment is a nursing bed used in, for example, nursing homes, hospitals, etc. The bed 1 has a bed frame 5 supported on a support surface such as a floor via legs 3 so that the bed frame 5 can be raised and lowered in the vertical direction. A bottom 7 is attached to the bed frame 5, and a mattress 9 is placed on the bottom 7.

[0018] A headboard 11a and a footboard 11b are erected from the bed frame 5 on both longitudinal sides of the bed 1. Mattress slippage prevention devices 13 are attached to both widthwise sides of the bed 1. The longitudinal direction and width direction refer to the longitudinal direction and width direction of the bed 1 in a plan view (the same applies hereinafter). Note that the bed 1 is an example of a bed to which a mattress slippage prevention device 13 can be attached, and is not limited to this.

[0019] Fig. 2 is a perspective view of a main part of the bed 1 in Fig. 1. Fig. 3 is a cross-sectional view of a main part of the bed 1 in Fig. 2. Fig. 4 is a perspective view of the attachment part 15 of the mattress stopper 13, Fig. 4(A) showing the front side and Fig. 4(B) showing the back side.

[0020] The mattress slip prevention device 13 of this embodiment is attached to the attachment portion 15 of the bottom 7. The bottom 7 is formed into a plate shape from resin or the like. The attachment portion 15 is provided on the edge of this plate-shaped bottom 7 in the width direction. Note that the attachment portion 15 only needs to be provided on the bed 1 side, and may also be provided on the bed frame 5 or the like other than the bottom 7.

[0021] The mounting portion 15 is a plate-like member that is formed in a concave shape relative to the front surface 7a, the side surface 7b, and the back surface 7c of the bottom 7. The mounting portion 15 includes an upper engaged portion 17 and a lower engaged portion 19. Note that the mounting portion 15 does not need to be concave as long as it includes the upper engaged portion 17 and the lower engaged portion 19.

[0022] The upper engaged portion 17 is provided on the surface 15a of the mounting portion 15. The surface 15a of the mounting portion 15 is generally flat and has a recess corresponding to the shape of the bottom 7. Note that the surface 15a of the mounting portion 15 may have a shape that does not have a recess.

[0023] In this embodiment, a pair of upper engaged portions 17 are provided on the inside of the width direction on both longitudinal sides of the mounting portion 15. Each upper engaged portion 17 consists of an opening having a rectangular planar shape. The planar shape of the upper engaged portions 17 can be set appropriately depending on the shape of the upper engaging portions 29 of the mattress slippage prevention device 13, which will be described later. The number of upper engaged portions 17 can also be set appropriately depending on the upper engaging portions 29 of the mattress slippage prevention device 13.

[0024] The upper engaged portion 17 is formed by a through-hole 23 that penetrates between the front surface 15a and the back surface 15b of the mounting portion 15 and opens on the front surface 15a of the mounting portion 15. The upper engaged portion 17 can also be formed by a groove that does not reach the back surface 15b.

[0025] The through hole 23 is formed in the up-down direction. The through hole 23 has a bulging hole portion 23a that bulges inward in the width direction below the upper engaged portion 17. Therefore, the bulging hole portion 23a has a shape in which the inner edge portion 17a of the upper engaged portion 17 in the width direction overhangs (projects) above the through hole 23 toward the outside in the width direction.

[0026] The bulging hole 23a extends in the vertical direction from the edge 17a of the upper engaged portion 17 to the back surface 15b of the attachment portion 15. However, if the edge 17a of the upper engaged portion 17 can be shaped to protrude above the through hole 23 toward the outside in the width direction, the bulging hole 23a may be formed up to the middle of the through hole 23 in the vertical direction.

[0027] Furthermore, the upper end of the bulging hole portion 23a is located on the same plane as the upper engaged portion 17, but the upper end may be located on a plane that is vertically shifted from the upper engaged portion 17, for example.

[0028] The lower engaged portions 19 are provided on the back surface 15b of the mounting portion 15. In this embodiment, a pair of lower engaged portions 19 are provided on both longitudinal sides of the mounting portion 15. The lower engaged portions 19 are located outward in the width direction than the upper engaged portions 17.

[0029] The lower engaged portion 19 consists of an opening having a rectangular planar shape. The planar shape of the lower engaged portion 19 can be set appropriately depending on the shape of the lower engaging portion 31 of the mattress slippage prevention device 13. The number of lower engaged portions 19 can also be set appropriately depending on the lower engaging portions 31 of the mattress slippage prevention device 13. The lower engaged portions 19 may also be protrusions, claws, etc. provided on the back surface 15b of the attachment portion 15.

[0030] FIG. 5 is a perspective view showing the mattress stopper 13. As shown in FIG.

[0031] The mattress slippage prevention device 13 includes a base portion 25 and a stopper portion 27, as shown in FIGS.

[0032] The base portion 25 is a channel member made of resin or the like, and is open in the width direction. The base portion 25 includes an upper engaging portion 29, a lower engaging portion 31, a flexible portion 33, and a protruding portion 35.

[0033] The upper engaging portion 29 is inserted into the upper engaged portion 17 on the bed 1 side and engages with the edge 17a of the upper engaged portion 17 from below, resisting the outward force acting on the stopper portion 27. Here, "outside" refers to the outside when the mattress 9 side, separated by the stopper portion 27, is considered the inside, and in this embodiment, it means the outside in the width direction. Note that if the mattress slippage prevention device 13 is provided on one side in the longitudinal direction, the outside becomes the outside in the longitudinal direction.

[0034] The upper engaging portion 29 of this embodiment has a rectangular plate-shaped main body 37 provided along the surface 15a of the mounting portion 15. The surface 37a of the main body 37 is substantially flush with the surface 7a of the bottom 7. The tip of the main body 37, which is located on the inside in the width direction, faces the edge 17a of the upper engaged portion 17 with a gap G in the width direction. The upper engaging portion 29 has a claw portion 39 at the tip of the main body 37.

[0035] The claw portion 39 is disposed so as to be displaced downward relative to the main body portion 37 of the upper engaging portion 29, and is positioned as a whole within the upper engaged portion 17. The planar shape of the claw portion 39 is a rectangle that is longer in the width direction of the bottom 7 than the upper engaging portion 29. Note that the upper engaging portion 29 may be configured not to be displaced downward.

[0036] In the width direction, the base end 39a of the claw portion 39 located on the outer side abuts against the edge portion 17b of the upper engaged portion 17 in the width direction, and the tip end 39b of the claw portion 39 located on the inner side faces the side wall portion 23b of the through hole 23 with a gap g therebetween. Tip part 39b The edge 17 of the upper engaged portion 17 a is being thrust against it from below.

[0037] As a result, the upper surfaces 39c of the claw portions 39 abut against the lower surfaces 17aa of the edge portions 17a of the upper engaged portions 17. The upper surfaces 39c of the claw portions 39 and the lower surfaces 17aa of the edge portions 17a are flat surfaces along the width direction, but may also be inclined surfaces relative to the width direction. Furthermore, the upper surfaces 39c of the claw portions 39 and the lower surfaces 17aa of the edge portions 17a may also be wavy surfaces, etc.

[0038] The lower engaging portion 31 engages with the lower engaged portion 19 on the bed 1 side, and maintains the engaged state of the upper engaging portion 29. The lower engaging portion 31 is provided integrally with the upper engaging portion 29 via a flexible portion 33, which will be described later.

[0039] The lower engaging portion 31 has a main body portion 41 that protrudes inward in the width direction from the flexible portion 33. The main body portion 41 is a rectangular plate-like portion provided along the lower surface 15b of the mounting portion 15, and extends to cover the lower engaged portion 19 of the mounting portion 15. The main body portion 41 is provided with a protrusion portion 43 that corresponds to the lower engaged portion 19.

[0040] The protrusion 43 protrudes upward from the main body 41 of the lower engaging portion 31 and enters into and engages with the lower engaged portion 19 of the mounting portion 15. This allows the lower engaging portion 31 to maintain the engaged state of the upper engaging portion 29 via the flexible portion 33.

[0041] Note that, for example, when the lower engaged portion 19 of the mounting portion 15 is a protrusion, the lower engaging portion 31 may be an opening provided in the main body portion 41. Alternatively, the lower engaging portion 31 may be configured such that the protrusion 43 is omitted and the main body portion 41 has a C-shaped cross section or the like, with its tip entering and engaging with the lower engaged portion 19.

[0042] The flexible portion 33 is provided between the upper engagement portion 29 and the lower engagement portion 31, and can disengage the lower engagement portion 31 by bending. In this embodiment, the flexible portion 33 is plate-shaped and formed to match the side surface 7b of the bottom 7, with the surface 33a being substantially flush with the side surface 7a of the bottom 7. A space S is defined between the flexible portion 33 and the side surface 15c of the mounting portion 15.

[0043] In this embodiment, the flexible portion 33 is thinner and more flexible than the other portions of the base portion 25. The flexible portion 33 is deflected by bending outward when the lower engaging portion 31 is released from engagement.

[0044] The flexible portion 33 does not necessarily have to be thin, as long as it is more flexible than other portions of the base portion 25. For example, the flexible portion 33 may not be thin, but may be a plate-like portion with openings or slits, or may be bellows-like.

[0045] The protrusion 35 protrudes downward beyond the lower engagement portion 31 along the flexible portion 33 and is used for operation when bending the flexible portion 33. The protrusion 35 is formed in a plate shape, and is formed to follow the side surface 7b of the bottom 7, with the surface 35a being flush with the side surface 7b of the bottom 7. The tip of the protrusion 35 is located on the same plane as the back surface 7c of the bottom 7.

[0046] As a result, the protrusion 35 covers the lower engaging portion 31, preventing the engagement of the lower engaging portion 31 from being inadvertently released, and also allowing an operator to hook their finger thereon for operation.

[0047] The stopper portion 27 stands upright from the base portion 25 and prevents the mattress 9 on the bed 1 side from shifting. In this embodiment, the stopper portion 27 is a plate-like body extending in the vertical direction, with the upper end curved inward in the width direction. This stopper portion 27 has an opening 27a in the middle portion in the longitudinal direction of the bottom 7 and is flexible. The stopper portion 27 abuts against the end face 9a of the mattress 9 in the width direction, preventing the mattress 9 from shifting in the width direction.

[0048] At this time, even if a force acting outward in the width direction from the mattress 9 acts on the stopper portion 27, the mattress slippage prevention device 13 can resist the outward force acting on the stopper portion 27.

[0049] In other words, when an outward force acts on the stopper portion 27, the force is transmitted from the lower end of the stopper portion 27 to the base portion 25, and the mattress slip prevention device 13 attempts to rotate around the lower engagement portion 31 of the base portion 25 as a fulcrum.

[0050] At this time, in the mattress slippage prevention device 13 of this embodiment, rotation is prevented by the upper engaging portion 29 of the base portion 25 engaging from below with the edge portion 17a of the upper engaged portion 17. Therefore, the mattress slippage prevention device 13 can resist the outward force acting on the stopper portion 27, making it possible to reliably prevent slippage of the mattress 9.

[0051] Even when configured in this manner, the mattress slip prevention device 13 of this embodiment can be easily removed from the bottom 7 side by bending the flexible portion 33 and rotating the stopper portion 27 so that it tilts inward in the width direction, as shown in Figure 6.

[0052] The flexible portion 33 is not positioned between the stopper portion 27 and the upper engaging portion 29 of the base portion 25, and therefore does not hinder the stopper portion 27 from resisting the outward force acting on the stopper portion 27.

[0053] Rotation when removing the mattress slippage prevention device 13 is permitted by the widthwise gap G between the tip of the upper engaging portion 29 and the edge 17a of the upper engaged portion 17, so there is no strain in removing the mattress slippage prevention device 13. This removal can be done easily and reliably by the worker placing his or her finger on the operating protrusion 35. [Explanation of symbols]

[0054] 1 bed 9 Mattress 13 Mattress stopper 15 Mounting part 17 Upper engaged part 17a Edge 19 Lower engaged part 25 Base 27 Stopper part 29 Upper engagement part 31 Lower engaging part 33 Flexure 35 Protrusion

Claims

1. A base for attaching to the bed side, a stopper portion erected from the base portion to prevent the mattress on the bed side from slipping; The base portion includes an upper engaging portion that is inserted into an upper engaged portion formed by an opening on the bed side and engages with an edge of the upper engaged portion from below to resist an outward force acting on the stopper portion, a lower engaging portion that engages with the lower engaged portion on the bed side to maintain the engaged state of the upper engaging portion, and a flexible portion that is provided between the upper engaging portion and the lower engaging portion and that can release the engagement of the lower engaging portion by flexing, the upper engaging portion has a main body portion extending in the width direction of the bed and a claw portion disposed at a tip of the main body portion and displaced downward relative to the main body portion and inserted into the upper engaged portion, The claw portion has a tip end portion that abuts from below against an edge portion that is located on the inside in the width direction of the upper engaged portion, and a base end portion that abuts from the inside in the width direction against an edge portion that is located on the outside in the width direction of the upper engaged portion. Mattress stopper.

2. The mattress stopper of claim 1, The flexible portion is formed thinner than the other portion of the base portion. Mattress stopper.

3. The mattress slippage prevention device according to claim 1 or 2, The base portion includes a protrusion that protrudes downward from the lower engagement portion along the flexible portion and is used for operation when the flexible portion is bent. Mattress stopper.

4. A bed equipped with the mattress slippage prevention device according to any one of claims 1 to 3.

Images