JP7461641B2 - Storage bed - Google Patents

Description

The present invention relates to a storage bed that can be stored when not in use.

A storage bed is known that can be stored in an upright position inside a cabinet (Patent Document 1: Japanese Utility Model Application Publication No. 62-78150). This storage bed has rotatable leg plates that are perpendicular to the bed body when the bed is pulled out, forming the legs. When the bed is stored, a large interior space can be secured.

Japanese Utility Model Application Publication No. 62-78150

Though a stowable bed has the advantage of being able to secure a large interior space, the bed body must rotate when storing or pulling out the bed. For this reason, careful attention must be paid to its design in order to prevent accidents.

Therefore, the object of the present invention is to provide a storage bed whose ladder section does not easily fall off when in use.

The above problems are solved by the present invention. That is, the storage bed of the present invention (1) is:
A support portion;
a bed body supported by the support portion so as to be rotatable between a first position standing vertically and a second position extending horizontally;
a ladder portion that is detachable from the bed body in the second position;
A first engagement portion provided on the bed body, the first engagement portion being rod-shaped and having a first tip portion;
A second engagement portion provided on the ladder portion and capable of engaging with the first tip portion;
Equipped with
The second engagement portion is
a first smooth surface that abuts against the first tip portion to allow the first tip portion to move laterally;
a first recess provided adjacent to the first smooth surface and into which the first tip portion is recessed;
a first step portion formed around the first recess portion, the first step portion restricting the first tip portion located within the first recess portion from moving in the lateral direction;
a first groove extending upward from the first recess and allowing the first tip located within the first recess to move upward;
has.

The storage bed of the present invention (2) is the storage bed according to (1),
The first tip portion is movable forward and backward along an axial direction of the first engagement portion,
The first tip of the first engagement portion is biased by a spring in a direction to fall into the first recess.

The storage bed of the present invention (3) is the storage bed according to (2),
The first engagement portion has a rod portion having a rod shape and the first tip portion that protrudes outward from the rod portion and is stored within the rod portion,
The first smooth surface is angled so as to approach the rod portion as it approaches the first recess.

The storage bed of the present invention (4) is the storage bed according to any one of (1) to (3),
The bed body has a fence member extending in the lateral direction,
The second engagement portion is provided on the tip side of the ladder portion,
The ladder portion has a hook that is capable of being hooked onto the fence member and is located further toward the tip side than the second engagement portion.

The storage bed of the present invention (5) is the storage bed according to any one of (1) to (4),
The first engagement portion is provided on the bottom of the bed body and also serves as an operating handle for moving the bed body between a first position and a second position.

A storage bed according to the present invention (6) is a storage bed according to any one of (1) to (5),
An operating rod is provided that is suspended from the first engagement portion and extends in the lateral direction.

A storage bed according to the present invention (7) is a storage bed according to any one of (1) to (6),
The first engagement portion has a second tip portion provided on an opposite side to the first tip portion,
The second engagement portion is
a second smooth surface that abuts against the second tip portion to allow the second tip portion to move laterally;
a second recess provided adjacent to the second smooth surface, into which the second tip portion is recessed and which restricts the recessed second tip portion from moving in the lateral direction;
a second groove extending upward from the second recess and allowing the second tip located within the second recess to move upward;
has.

The storage bed of the present invention (8) is the storage bed according to (7),
The second tip portion is movable forward and backward along an axial direction of the first engagement portion,
The second tip of the first engagement portion is biased by a spring in a direction to drop into the second recess.

The storage bed of the present invention (9) is the storage bed according to (8),
The first engagement portion has a rod portion having a rod shape and the second tip portion that protrudes outward from the rod portion and is stored within the rod portion,
The second smooth surface is angled so as to approach the rod portion as it approaches the second recess.

In addition, the storage bed of the present invention (10) is
A support portion;
a bed body supported by the support portion so as to be rotatable between a first position standing vertically and a second position extending horizontally;
a ladder portion that is detachable from the bed body in the second position;
A third engagement portion provided on the bed body;
a fourth engaging portion provided on the ladder portion, the fourth engaging portion being rod-shaped and having a first tip portion engageable with the third engaging portion;
Equipped with
The third engagement portion is
a first smooth surface that abuts against a first tip portion of the fourth engagement portion to allow the first tip portion to move in a lateral direction;
a first recess provided adjacent to the first smooth surface, into which the first tip portion is recessed and which restricts the recessed first tip portion from moving in the lateral direction;
a first groove extending downward from the first recess and allowing the first tip located within the first recess to move downward;
has.

The storage bed of the present invention (11) is the storage bed according to (10),
The first tip portion is movable forward and backward along an axial direction of the fourth engagement portion,
The first tip of the fourth engagement portion is biased by a spring in a direction to drop into the first recess.

The storage bed of the present invention (12) is the storage bed according to (11),
The fourth engagement portion has a rod portion having a rod shape and the first tip portion that protrudes outward from the rod portion and is stored within the rod portion,
The first smooth surface is angled so as to approach the rod portion as it approaches the first recess.

A storage bed according to the present invention (13) is a storage bed according to any one of (10) to (12),
The bed body has a fence member extending in the lateral direction,
The fourth engagement portion is provided on the tip side of the ladder portion,
The ladder portion has a hook that is capable of being hooked onto the fence member and is located further toward the tip side than the fourth engagement portion.

A storage bed according to the present invention (14) is a storage bed according to any one of (10) to (13),
the fourth engagement portion has a second tip portion provided on an opposite side to the first tip portion,
The third engagement portion is
a second smooth surface that abuts against the second tip portion to allow the second tip portion to move laterally;
a second recess provided adjacent to the second smooth surface into which the second tip portion falls and which restricts the second tip portion from moving in the lateral direction;
a second groove extending downward from the second recess and allowing the second tip located within the second recess to move downward;
has.

The storage bed of the present invention (15) is the storage bed according to (14),
The second tip portion is movable forward and backward along an axial direction of the fourth engagement portion,
The second tip of the fourth engagement portion is biased by a spring in a direction to drop into the second recess.

The storage bed of the present invention (16) is the storage bed according to (15),
The fourth engagement portion has a rod portion having a rod shape and the second tip portion that protrudes outward from the rod portion and is stored within the rod portion,
The second smooth surface is angled so as to approach the rod portion as it approaches the second recess.

The present invention provides a storage bed whose ladder section does not easily fall off when in use.

FIG. 2 is a perspective view showing the storage bed of the first embodiment with the bed body in a second position. 2 is a perspective view showing the storage bed shown in FIG. 1 in a state where the bed body is in a first position. 2 is a cross-sectional view showing a first engagement portion of the storage bed shown in FIG. 1 with a part cut away. 2 is a front view of the ladder portion of the storage bed shown in FIG. 1 . FIG. 5 is a cross-sectional view taken along the F5-F5 position of the ladder section shown in FIG. 4. 2 is a top view showing a first engagement portion on the bed body side and a second engagement portion on the ladder portion side of the storage bed shown in FIG. 1 . FIG. 7 is a top view showing the left member of the second engagement portion shown in FIG. 6 from above. FIG. 8 is a side view showing a left member of the second engagement portion shown in FIG. 7 from the side. FIG. 7 is a front view showing a left member of the second engagement portion shown in FIG. 6 . FIG. 9 is a cross-sectional view taken along the line F10-F10 of the left member shown in FIG. 8. 7 is a side view showing a right member of the second engagement portion shown in FIG. 6 from the side. FIG. 3 is a perspective view showing a state in which the bed body of the storage bed shown in FIG. 2 is being moved from a first position to a second position. FIG. 13 is a side view showing a process of hanging a hook on a fence member with the storage bed shown in FIG. 12 in the second position. FIG. 14 is a perspective view showing a process of rotating the ladder section around the hook and fence member as a fulcrum with the hook of the storage bed shown in FIG. 13 hooked onto the fence member. FIG. 15 is a side view showing the ladder portion of the storage bed shown in FIG. 14 in a state where the ladder portion has been further rotated so that the first engagement portion and the second engagement portion are engaged with each other. 16 is a perspective view showing a state in which the first engagement portion and the second engagement portion of the storage bed shown in FIG. 15 are engaged. 1 , a perspective view showing a process of rotating the bed body from the second position toward the first position and rotating the ladder portion toward the front. FIG. 18 is a perspective view showing details of a process of rotating the bed body from the second position toward the first position and rotating the ladder portion toward the front in the storage bed shown in FIG. 17. 13 is a top view showing a third engagement portion on the bed body side and a fourth engagement portion on the ladder portion side of the storage bed of the second embodiment. FIG. 20 is a top view showing the left member of the fourth engagement portion shown in FIG. 19 from above. 21 is a side view showing a left member of the fourth engagement portion shown in FIG. 20 from the side. FIG. 20 is a side view showing a right member of the fourth engagement portion shown in FIG. 19 from the side. FIG.

An embodiment of a storage bed of the present invention will be described below with reference to the drawings. The storage bed is installed, for example, in a hotel guest room, and the user, that is, the guest, can unfold and retract the storage bed, thereby making appropriate use of the space in the guest room. The storage bed of the following embodiment is installed at a relatively high position in the room, and has a storage space below it. In this storage space, a sofa, other furniture, home appliances, etc. can be placed directly below the storage bed. Therefore, the present invention makes it possible to make effective use of the space in the room.
[First embodiment]

The storage bed 11 of the first embodiment will be described with reference to Figures 1 to 18. As shown in Figures 1 and 2, the storage bed 11 includes a support section 12, a bed body 13 rotatably fixed to the support section 12, a ladder section 14 configured to be detachable from the bed body 13 in a second position P2 described below, a first engagement section 15 (see Figure 3) provided on the bed body 13 and shaped like a rod and having a first tip section 21 and a second tip section 22, a second engagement section 16 provided on the ladder section 14 and engageable with the first tip section 21 and the second tip section 22, and an operating rod 17 suspended from the first engagement section 15.

The support section 12 has a frame 23 made of metal such as steel, and a pivot 24 that rotatably supports the bed body 13. The frame 23 is fixed to the floor and side walls of the room via bolts and nuts. The pivot 24 is formed into a cylindrical shape from a metal material such as steel. The frame 23 is provided with a lock lever 25 that prohibits the bed body 13 from rotating between the second position P2 and the first position P1.

The bed body 13 has a metal frame body 31 that is rectangular when viewed from above, a flat bottom plate 32 that is placed over the top of the frame body 31, a fence member 33 that is provided to stand upward from the frame body 31, a decorative plate 34 that is provided on the underside of the frame body 31, and a cushion 26 that is provided on the underside of the frame body 31. The bottom plate 32 is formed into a flat plate by combining multiple steel wires in a mesh pattern. The decorative plate 34 is made of a board or a wood grain panel. The fence member 33 is formed by welding a hollow bar made of a metal material such as steel into a frame. The cushion 26 can absorb impact when the user hits his/her head against the bed body 13.

The operating rod 17 has a belt-shaped hanging sheet 35 suspended from the rod-shaped first engagement part 15, and a rod-shaped rod body 36 fixed to the lower end of the hanging sheet 35. The hanging sheet 35 is made of leather or synthetic leather. The rod body 36 is made of, for example, a cylindrical steel material. The hanging sheet 35 has an opening 37 (an opening formed between a pair of slits) through which the hand can be inserted when gripping the rod body 36. The user can insert their hand into the opening 37 to rotate the bed body 13. In addition, the user may rotate the bed body 13 by using the first engagement part 15 itself as an operating handle, depending on the circumstances.

The ladder section 14 has a structure similar to that of a typical bed ladder. As shown in Figs. 4 to 6, the ladder section 14 has a pair of pillars 41, a pair of legs 42 provided at the lower ends of the pair of pillars 41, and a crossbar 43 extending between the pair of pillars 41. The second engagement section 16 is provided at the tip side of the pair of pillars 41. The ladder section 14 has a pair of hooks 44 further toward the tip side than the second engagement section 16. Each of the pair of hooks 44 is provided to correspond to each of the pair of pillars 41. The hooks 44 are formed into a substantially "L" shape by a metal plate. The hooks 44 can be hooked onto the fence member 33 of the bed body 13. Using the hooks 44 hooked onto the fence member 33 as a fulcrum, the user can align and engage the second engagement section 16 on the ladder section 14 side with the first engagement section 15 on the bed body 13 side.

As shown in FIG. 3, the first engagement part 15 is fixed to the underside of the frame 31 of the bed body 13 via bolts and nuts. The first engagement part 15 has a rod part 45, a first tip part 21 provided at one end of the rod part 45, a second tip part 22 provided at the other end of the rod part 45 (opposite the first tip part 21), a spring 46 that urges the first tip part 21 in a direction that protrudes outward from the rod part 45 (in a direction that falls into the first recess 56), and a spring 46 that urges the second tip part 22 in a direction that protrudes outward from the rod part 45 (in a direction that falls into the second recess 66).

The first tip 21 has a shaft 21A that is configured to be able to advance and retreat in the axial direction of the rod 45, and a pin 21B that is provided at the end of the shaft 21A inside the rod 45. The shaft 21A is in the form of a piston. The head located at the tip of the shaft 21A is cylindrical. The shaft 21A can be stored inside the rod 45 or protrude outward from the rod 45 by the action of the spring 46. The pin 21B can prevent the shaft 21A from protruding beyond a predetermined length from the rod 45. The second tip 22 has a similar configuration to the first tip 21, and can operate in the same way as the first tip 21.

As shown in Figures 4 to 6, the second engagement parts 16 are formed in a pair on the left and right. The second engagement parts 16 have a left member 51 and a right member 52. The left member 51 is fixed to one of the pair of pillar parts 41 via a metal bracket. The right member 52 is fixed to the other of the pair of pillar parts 41 via a metal bracket.

As shown in Figures 7 to 10, the left member 51 is made of a metal material and is formed into an "L" shape when viewed from above.

The left member 51 has a horizontal plate portion 53, a vertical plate portion 54 standing from the horizontal plate portion 53, a first bent portion 55 provided on the tip side of the vertical plate portion 54 (the side facing the bed body 13) and formed at an angle to the vertical plate portion 54, a first smooth surface 56 provided on the surface of the first bent portion 55 that abuts against the first engaging portion 15, a first recess 57 provided on the surface of the vertical plate portion 54 that abuts against the first engaging portion 15, a first step portion 58 formed around the first recess 57, and a first groove portion 61 extending upward from the first recess 57.

The vertical plate portion 54 is integrally formed by welding two metal plates together. A first recess 57, a first step portion 58, and a first groove portion 61 are formed in the metal plate on the side that contacts the first engagement portion 15.

The first bent portion 55 is inclined so as to expand outward as it moves away from the vertical plate portion 54. Therefore, the first smooth surface 56 provided on the first bent portion 55 is inclined so as to approach the rod portion 45 of the first engagement portion 15 that abuts against it as it approaches the first recess 57 (see FIG. 6). The first smooth surface 56 abuts against the first tip portion 21 of the first engagement portion 15, and is able to allow the first tip portion 21 to move laterally (relative movement).

The first recess 57 is recessed in a circular (semicircular) shape to match the shape of the first tip 21 (shaft 21A) of the first engagement part 15. The first step 58 is formed around the first recess 57 and defines the outer edge of the first recess 57. The first step 58 can restrict the first tip 21 of the first engagement part 15 located inside the first recess 57 from moving laterally and downwardly.

The first groove 61 is formed integrally with the first recess 57 and is formed to extend upward from the first recess 57. The first groove 61 is recessed from the surroundings by the same depth as the first recess 57. The width of the first groove 61 is formed to be the same as the diameter of the first recess 57 and is formed with a dimension slightly larger than the diameter of the first tip 21 (shaft 21A). Therefore, the first tip 21 of the first engagement part 15 can move inside the first groove 61. Therefore, the first groove 61 can allow the first tip 21 of the first engagement part 15 held inside the first recess 57 to move upward (relative movement).

As shown in Figures 4 and 6, the right member 52 has a shape that is bilaterally symmetrical to the left member 51. The right member 52 is made of a metal material and is formed in an "L" shape when viewed from above.

As shown in FIG. 11, the right member 52 has a second horizontal plate portion 62, a second vertical plate portion 63 standing up from the second horizontal plate portion 62, a second bent portion 64 provided on the tip side of the second vertical plate portion 63 (the side facing the bed body 13) and formed at an angle to the second vertical plate portion 63, a second smooth surface 65 provided on the surface of the second bent portion 64 on the side that abuts against the first engagement portion 15, a second recess 66 provided on the surface of the second vertical plate portion 63 on the side that abuts against the first engagement portion 15, a second step portion 67 formed around the second recess 66, and a second groove portion 68 extending upward from the second recess 66.

The second vertical plate portion 63 is integrally formed by welding two metal plates together. A second recess 66, a second step portion 67, and a second groove portion 68 are formed in the metal plate on the side that contacts the first engagement portion 15.

The second bent portion 64 is inclined so as to expand outward as it moves away from the second vertical plate portion 63. Therefore, the second smooth surface 65 provided on the second bent portion 64 is inclined so as to approach the rod portion 45 of the first engagement portion 15 that abuts against it as it approaches the second recess 66 (see FIG. 6). The second smooth surface 65 abuts against the second tip portion 22 of the first engagement portion 15, and is able to allow the second tip portion 22 to move laterally (relative movement).

The second recess 66 is recessed in a circular (semicircular) shape to match the shape of the second tip 22 (shaft 21A) of the first engagement part 15. The second step 67 is formed around the second recess 66 and defines the outer edge of the second recess 66. The second step 67 can restrict the second tip 22 of the first engagement part 15 located inside the second recess 66 from moving laterally and downwardly.

The second groove 68 is formed integrally with the second recess 66 and is formed to extend upward from the second recess 66. The second groove 68 is recessed from the surroundings by the same depth as the second recess 66. The width of the second groove 68 is formed to be the same as the diameter of the second recess 66 and is formed with a dimension slightly larger than the diameter of the second tip 22 (shaft 21A). Therefore, the second tip 22 of the first engagement part 15 can move inside the second groove 68. Therefore, the second groove 68 can allow the second tip 22 of the first engagement part 15 held inside the second recess 66 to move upward (relative movement).

The extension and storage operations of the storage bed 11 will be described with reference to Figures 1, 2, and 12 to 18.

The following describes the operation of pulling out the device from the first position P1 in the upright state shown in FIG. 2 to the second position P2 in the horizontal state (usage state) shown in FIG. 1.

The user releases the safety lock (not shown) provided on the frame 23 to make the bed body 13 rotatable. As shown in FIG. 12, the user pulls the operating rod 17 provided on the bed body 13 downward to rotate the bed body 13 from the first position P1 to the second position P2. The user then operates the lock lever 25 provided on the frame 23 of the support part 12 to fix the bed body 13 in the second position P2.

As shown in FIG. 13, the user hooks the hook 44 of the ladder section 14 onto the fence member 33 of the bed body 13 in the second position P2. The user rotates the ladder section 14 around the fence member 33 and hook 44 as shown in FIG. 14, positioning the first engagement section 15 between the left member 51 and the right member 52 of the second engagement section 16. As a result, the first tip 21 of the first engagement section 15 abuts against the first smooth surface 56 of the left member 51 of the second engagement section 16, and the second tip 22 of the first engagement section 15 abuts against the second smooth surface 65 of the right member 52 of the second engagement section 16. As a result, the first tip 21 is pushed into the rod section 45, and the second tip 22 is pushed into the rod section 45. In addition, when the position of the first engagement part 15 is misaligned with respect to the second engagement part 16, the rod part 45 of the first engagement part 15 abuts against the first sliding surface 56 and the second sliding surface 65, and the ladder part 14 is moved by a small distance, so that the position of the ladder part 14 in the left-right direction is finely adjusted. If the user continues to rotate the ladder part 14 around the fence member 33 and the hook 44 as a fulcrum, the first tip part 21 of the first engagement part 15 falls into the inside of the first recess 57, and the second tip part 22 of the first engagement part 15 falls into the inside of the second recess 66, as shown in Figs. 15 and 16. This brings the second engagement part 16 into engagement with the first engagement part 15. This prevents the ladder part 14 from coming off the bed body 13 when the bed body 13 is in the second position P2. In this state, the user can use the bed by placing bedding or the like on the bed body 13. In the storage bed 11 of this embodiment, the ladder section 14 does not come off from the bed body 13 under normal use conditions. In other words, the ladder section 14 will not come off from the bed body 13 unless the bed body 13 is lifted upward, ensuring the safety of the user.

When the user wants to store the bed body 13, he or she removes bedding from the bed body 13. The user releases the lock lever 25 to allow the bed body 13 to rotate from the second position P2 to the first position P1. As shown in Figs. 17 and 18, the user lifts the bed body 13 with one hand so as to rotate it from the second position P2 to the first position P1. This causes the first tip 21 of the first engagement part 15 to move upward through the first groove 61 of the second engagement part 16, and the second tip 22 of the first engagement part 15 to move upward through the second groove 68 of the second engagement part 16. This releases the engagement between the first engagement part 15 and the second engagement part 16. Therefore, the user can pull the ladder part 14 away from the bed body 13 with the other hand, as shown in Fig. 18.

The user can then rotate the bed body 13 upward and engage the safety lock (not shown) to fix the bed body 13 in the first position P1.

According to the first embodiment, the following can be said. The storage bed 11 comprises a support part 12, a bed body 13 supported by the support part 12 so as to be rotatable between a first position P1 standing vertically and a second position P2 extending horizontally, a ladder part 14 that is detachable from the bed body 13 in the second position P2, a first engagement part 15 that is rod-shaped and has a first tip part 21 provided on the bed body 13, and a second engagement part 16 that is provided on the ladder part 14 and can engage with the first tip part 21, The engagement portion 16 has a first sliding surface 56 that contacts the first tip 21 to allow the first tip 21 to move laterally, a first recess 57 that is provided adjacent to the first sliding surface 56 and into which the first tip 21 falls and restricts the first tip 21 from moving laterally when it falls, and a first groove 61 that extends upward from the first recess 57 and allows the first tip 21 located within the first recess 57 to move upward.

According to this configuration, the first tip 21 of the first engagement part 15 is restricted from moving laterally by the first recess 57, so that when the bed body 13 is in the second position P2, the first tip 21 of the first engagement part 15 does not come off the first recess 57 via the first sliding surface 56. Therefore, a structure can be realized in which the ladder part 14 does not easily come off the bed body 13 in the second position P2, which is the use state. This prevents the ladder part 14 from falling off the bed body 13 when the bed is in use, which can prevent the user from getting off the bed body 13. In addition, when the bed body 13 is returned from the second position P2 to the first position P1, the bed body 13 rotates upward, so that the first tip 21 can be semi-automatically released from the first recess 57 via the first groove part 61 as the bed body 13 rotates. Therefore, the user can easily separate the ladder part 14 from the bed body 13.

The first tip 21 can move back and forth along the axial direction of the first engagement part 15, and the first tip 21 of the first engagement part 15 is biased by the spring 46 in a direction to fall into the first recess 57.

This configuration makes it possible to realize a configuration in which the first tip 21 does not easily fall off the first recess 57. In addition, when the user tries to move the bed body 13 from the first position P1 to the second position P2 to put it into use, a clicking sensation can be imparted to the hand of the user when the first tip 21 of the first engagement part 15 falls into the first recess 57. This allows the user to recognize that the ladder part 14 is correctly fixed to the bed body 13.

The first engagement part 15 has a rod-shaped rod part 45 and a first tip part 21 that protrudes outward from the rod part 45 and is stored within the rod part 45, and the first sliding surface 56 is inclined so that it approaches the rod part 45 as it approaches the first recess 57.

With this configuration, the ladder section 14 can be guided to the correct position relative to the bed body 13 through the abutment between the first sliding surface 56 and the first engagement section 15. Also, as the first engagement section 15 approaches the first recess 57, the first tip section 21 can be pushed into the rod section 45 against the repulsive force of the spring 46. This allows the first tip section 21 to easily climb over the steps around the first recess 57.

The bed body 13 has a fence member 33 extending in the horizontal direction, the second engagement part 16 is provided at the tip side of the ladder part 14, and the ladder part 14 has a hook 44 further towards the tip side than the second engagement part 16 that can be hooked onto the fence member 33.

With this configuration, the second engagement portion 16 can be aligned with the first engagement portion 15, with the hook 44 and the fence member 33 as fulcrums. This allows the user to engage the second engagement portion 16 with the first engagement portion 15 while the weight of the ladder portion 14 is borne by the fence member 33 and hook 44 when attaching the ladder portion 14 to the bed body 13. This reduces the workload on the user, making it easier to attach the ladder portion 14.

The first engagement portion 15 is provided at the bottom of the bed body 13 and also serves as an operating handle for moving the bed body 13 between the first position P1 and the second position P2. This configuration reduces the number of parts and manufacturing costs compared to when a separate operating handle is provided.

The bed is equipped with an operating rod 17 that is suspended from the first engagement part 15 and extends in the horizontal direction. When the bed body 13 is rotated to the upright first position P1, the first engagement part 15 may move to a higher position. With this configuration, even a small woman or child can easily rotate the bed body 13 between the first position P1 and the second position P2.

The storage bed 11 has a first engagement portion 15 having a second tip portion 22 provided on the opposite side to the first tip portion 21, and a second engagement portion 16 having a second sliding surface 65 that abuts against the second tip portion 22 to allow the second tip portion 22 to move laterally, a second recess 66 that is provided adjacent to the second sliding surface 65 and into which the second tip portion 22 falls and restricts the second tip portion 22 from moving laterally when it falls, and a second groove portion 68 that extends upward from the second recess 66 and allows the second tip portion 22 located within the second recess 66 to move upward.

According to this configuration, the second recess 66 also restricts the second tip 22 of the first engagement part 15 from moving laterally, so that when the bed body 13 is in the second position P2, the ladder part 14 does not come off the second recess 66 via the second sliding surface 65. Therefore, a structure can be realized in which the ladder part 14 does not easily come off the bed body 13 in the second position P2, which is the use state. This prevents the ladder part 14 from falling off the bed body 13 when the bed is in use, which can prevent the user from getting off the bed body 13. In addition, when the bed body 13 is returned from the second position P2 to the first position P1, the bed body 13 rotates upward, so that the second tip 22 can be semi-automatically released from the second recess 66 via the second groove part 68 as the bed body 13 rotates. Therefore, the user can easily separate the ladder part 14 from the bed body 13.

The second tip 22 can move back and forth along the axial direction of the first engagement part 15, and the second tip 22 of the first engagement part 15 is biased by the spring 46 in a direction to fall into the second recess 66.

This configuration makes it possible to realize a configuration in which the second tip 22 does not easily fall off the second recess 66. In addition, when the user tries to move the bed body 13 from the first position P1 to the second position P2 to put it into use, a clicking sensation can be imparted to the hand of the user when the second tip 22 of the first engagement part 15 falls into the second recess 66. This allows the user to recognize that the ladder part 14 is correctly fixed to the bed body 13.

The first engagement part 15 has a rod-shaped rod part 45 and a second tip part 22 that protrudes outward from the rod part 45 and is stored within the rod part 45, and the second smooth surface 65 is inclined so that it approaches the rod part 45 as it approaches the second recess 66.

This allows the ladder section 14 to be guided to the correct position relative to the bed body 13 through the abutment between the second sliding surface 65 and the second tip 22. Also, as the first engagement section 15 approaches the second recess 66, the second tip 22 can be pushed into the rod section 45 against the repulsive force of the spring 46. This allows the second tip 22 to easily climb over the steps around the second recess 66.

In the following embodiment, differences from the first embodiment will be mainly described, and illustrations or descriptions of parts common to the first embodiment will be omitted.
[Second embodiment]

The storage bed 11 of the second embodiment will be described with reference to Figures 19 to 22. In the storage bed 11 of this embodiment, the arrangement of the third engagement portion 71 and the fourth engagement portion 72 is reversed from the corresponding first engagement portion 15 and second engagement portion 16 in the first embodiment.

The storage bed 11 comprises a support part 12, a bed body 13 rotatably fixed to the support part 12, a ladder part 14 configured to be detachable from the bed body 13 in the second position P2 described below, a third engagement part 71 provided on the bed body 13, and a fourth engagement part 72 provided on the ladder part 14, which is rod-shaped and can engage with the third engagement part 71.

The fourth engagement portion 72 has a configuration similar to that of the first engagement portion 15 of the first embodiment. As shown in FIG. 19, the fourth engagement portion 72 is fixed to the tip side of the ladder portion 14. The ladder portion 14 has a hook 44 that can be hooked onto the fence member 33 further tip side than the fourth engagement portion 72. The fourth engagement portion 72 has a rod portion 45, a first tip portion 21 provided at one end of the rod portion 45, a second tip portion 22 provided at the other end of the rod portion 45 (opposite the first tip portion 21), a spring 46 that urges the first tip portion 21 in a direction that protrudes outward from the rod portion 45 (in a direction that falls into the first recess 57), and a spring 46 that urges the second tip portion 22 in a direction that protrudes outward from the rod portion 45 (in a direction that falls into the second recess 66).

The first tip 21 has a shaft 21A configured to be able to advance and retreat in the axial direction of the rod 45, and a pin 21B provided at the end of the shaft 21A inside the rod 45. The shaft 21A can be stored inside the rod 45 or protrude outward from the rod 45 by the action of the spring 46. The second tip 22 has a similar configuration to the first tip 21, and can operate in the same way as the first tip 21.

The third engagement portion 71 has a configuration substantially similar to that of the second engagement portion 16 of the first embodiment. The third engagement portion 71 is formed in a pair on the left and right. The third engagement portion 71 has a left member 51 and a right member 52. The third engagement portion 71 is fixed to the bed body 13 via a fixing plate 73. The third engagement portion 71 is fixed to the fixing plate 73 via bolts and nuts at the positions shown by the dashed lines in Figures 20 to 22.

As shown in Figures 20 and 21, the left member 51 is made of a metal material and is formed in an "L" shape when viewed from above.

The left member 51 has a horizontal plate portion 53, a vertical plate portion 54 standing from the horizontal plate portion 53, a first bent portion 55 provided on the tip side of the vertical plate portion 54 (the side facing the bed body 13) and formed at an angle to the vertical plate portion 54, a first smooth surface 56 provided on the surface of the first bent portion 55 that abuts against the first engaging portion 15, a first recess 57 provided on the surface of the vertical plate portion 54 that abuts against the first engaging portion 15, a first step portion 58 formed around the first recess 57, and a first groove portion 61 extending downward from the first recess 57.

The vertical plate portion 54 is integrally formed by welding two metal plates together. The metal plate on the side that contacts the fourth engagement portion 72 is formed with a first recess 57, a first step portion 58, and a first groove portion 61.

The first bent portion 55 is inclined so as to expand outward as it moves away from the vertical plate portion 54. Therefore, the first smooth surface 56 provided on the first bent portion 55 is inclined so as to approach the rod portion 45 of the fourth engagement portion 72 that abuts against it as it approaches the first recess 57 (see FIG. 19). The first smooth surface 56 abuts against the first tip portion 21 of the fourth engagement portion 72, and is able to allow the first tip portion 21 to move laterally (relative movement).

The first recess 57 is recessed in a circular (semicircular) shape to match the shape of the first tip 21 (shaft 21A) of the first engagement part 15. The first step 58 is formed around the first recess 57 and defines the outer edge of the first recess 57. The first step 58 can restrict the first tip 21 of the first engagement part 15 located inside the first recess 57 from moving sideways and upwards.

The first groove 61 is formed integrally with the first recess 57 and extends downward from the first recess 57. The first groove 61 is recessed from the surroundings by the same depth as the first recess 57. The width of the first groove 61 is formed to be the same as the diameter of the first recess 57 and is formed with a dimension slightly larger than the diameter of the first tip 21 (shaft 21A). Therefore, the first tip 21 of the first engagement part 15 can move inside the first groove 61. Therefore, the first groove 61 can allow the first tip 21 of the first engagement part 15 held inside the first recess 57 to move downward (relative movement).

As shown in FIG. 22, the right member 52 has a bilaterally symmetrical shape with the left member 51. The right member 52 is made of a metal material and is formed in an "L" shape when viewed from above.

The right member 52 has a second horizontal plate portion 62, a second vertical plate portion 63 standing up from the second horizontal plate portion 62, a second bent portion 64 provided on the tip side of the second vertical plate portion 63 (the side facing the bed body 13) and formed at an angle to the second vertical plate portion 63, a second smooth surface 65 provided on the surface of the second bent portion 64 that abuts against the first engagement portion 15, a second recess 66 provided on the surface of the second vertical plate portion 63 that abuts against the first engagement portion 15, a second step portion 67 formed around the second recess 66, and a second groove portion 68 extending downward from the second recess 66.

The second vertical plate portion 63 is integrally formed by welding two metal plates together. A second recess 66, a second step portion 67, and a second groove portion 68 are formed in the metal plate on the side that contacts the first engagement portion 15.

The second bent portion 64 is inclined so as to expand outward as it moves away from the second vertical plate portion 63. Therefore, the second smooth surface 65 provided on the second bent portion 64 can be said to be inclined so as to approach the rod portion 45 of the fourth engagement portion 72 that abuts against it as it approaches the second recess 66 (see FIG. 19). The second smooth surface 65 abuts against the second tip portion 22 of the fourth engagement portion 72, and is able to allow the second tip portion 22 to move laterally (relative movement).

The second recess 66 is recessed in a circular (semicircular) shape to match the shape of the second tip 22 (shaft 21A) of the fourth engagement portion 72. The second step 67 is formed around the second recess 66 and defines the outer edge of the second recess 66. The second step 67 can restrict the second tip 22 of the fourth engagement portion 72, which is located inside the second recess 66, from moving laterally and upwards.

The second groove 68 is formed integrally with the second recess 66 and extends downward from the second recess 66. The second groove 68 is recessed from the surroundings by the same depth as the second recess 66. The width of the second groove 68 is formed to be the same as the diameter of the second recess 66 and is formed with a dimension slightly larger than the diameter of the second tip 22 (shaft 21A). Therefore, the second tip 22 of the first engagement part 15 can move inside the second groove 68. Therefore, the second groove 68 can allow the second tip 22 of the fourth engagement part 72 held inside the second recess 66 to move downward (relative movement).

The extension and storage operations of the storage bed 11 will be described with reference to Figures 1, 2, and 19 to 22.

The following describes the operation of pulling out the device from the first position P1 in the upright state shown in FIG. 2 to the second position P2 in the horizontal state (usage state) shown in FIG. 1.

The user releases a safety lock (not shown) provided on the frame 23 to make the bed body 13 rotatable. The user places their hands on the bed body 13 to rotate it from the first position P1 to the second position P2. The user then operates the lock lever 25 provided on the frame 23 of the support section 12 to fix the bed body 13 in the second position P2.

The user hooks the hook 44 of the ladder section 14 onto the fence member 33 of the bed body 13 in the second position P2. The user rotates the ladder section 14 around the fence member 33 and hook 44 as a fulcrum, and positions the first engagement section 15 between the left member 51 and the right member 52 of the second engagement section 16. As a result, the first tip 21 of the fourth engagement section 72 abuts against the first smooth surface 56 of the left member 51 of the third engagement section 71, and the second tip 22 of the fourth engagement section 72 abuts against the second smooth surface 65 of the right member 52 of the third engagement section 71. As a result, the first tip 21 is pushed into the rod section 45, and the second tip 22 is pushed into the rod section 45. In addition, if the position of the fourth engagement part 72 is misaligned with respect to the third engagement part 71, the rod part 45 of the fourth engagement part 72 abuts against the first sliding surface 56 and the second sliding surface 65, and the position of the ladder part 14 in the left-right direction is finely adjusted. If the user continues to rotate the ladder part 14 around the fence member 33 and the hook 44 as a fulcrum, the first tip part 21 of the fourth engagement part 72 falls inside the first recess 57, and the second tip part 22 of the fourth engagement part 72 falls inside the second recess 66. This causes the fourth engagement part 72 to be engaged with the third engagement part 71. This prevents the ladder part 14 from coming off the bed body 13 when the bed body 13 is in the second position P2. In this state, the user can use the bed by placing bedding or the like on the bed body 13.

When the user wants to store the bed body 13, he or she removes bedding and the like from the bed body 13. The user releases the lock lever 25 to allow the bed body 13 to rotate from the second position P2 to the first position P1. The user lifts the bed body 13 with one hand so as to rotate it from the second position P2 to the first position P1. As a result, the first tip 21 of the fourth engagement part 72 moves downward relative to the third engagement part 71 through the first groove part 61 (actually, the third engagement part 71 moves upward), and the second tip 22 of the fourth engagement part 72 moves downward relative to the third engagement part 71 through the second groove part 68 (actually, the third engagement part 71 moves upward). This releases the engagement between the third engagement part 71 and the fourth engagement part 72. Therefore, the user can pull the ladder part 14 toward himself or herself with the other hand to separate it from the bed body 13.

The user can then rotate the bed body 13 upward and engage the safety lock (not shown) to fix the bed body 13 in the first position P1.

According to the second embodiment, the following can be said. The storage bed 11 comprises a support part 12, a bed body 13 supported by the support part 12 so as to be rotatable between a first position P1 that stands vertically and a second position P2 that extends horizontally, a ladder part 14 that is detachable from the bed body 13 in the second position P2, a third engagement part 71 provided on the bed body 13, and a fourth engagement part 72 provided on the ladder part 14, which is rod-shaped and has a first tip part 21 that can engage with the third engagement part 71. 1 has a first sliding surface 56 that abuts against the first tip 21 of the fourth engagement portion 72 to allow the first tip 21 to move laterally, a first recess 57 that is provided adjacent to the first sliding surface 56 and into which the first tip 21 falls and restricts the first tip 21 from moving laterally when it falls, and a first groove 61 that extends downward from the first recess 57 and allows the first tip 21 located within the first recess 57 to move downward.

According to this configuration, the first tip 21 of the fourth engagement part 72 is restricted from moving laterally by the first recess 57, so that the ladder part 14 does not come off the first recess 57 via the first sliding surface 56. Therefore, a structure can be realized in which the ladder part 14 does not easily come off the bed body 13 in the second position P2, which is the use state. This prevents the ladder part 14 from falling off the bed body 13 when the bed is in use, which can prevent the user from getting off the bed body 13. In addition, when the bed body 13 is returned from the second position P2 to the first position P1, the bed body 13 rotates upward, so that the first tip 21 can be semi-automatically released from the first recess 57 via the first groove 61 in accordance with the movement of the bed body 13. Therefore, the user can easily separate the ladder part 14 from the bed body 13.

The first tip 21 can move back and forth along the axial direction of the fourth engagement part 72, and the first tip 21 of the fourth engagement part 72 is biased by the spring 46 in a direction to fall into the first recess 57.

This makes it possible to realize a configuration in which the first tip 21 does not easily fall off the first recess 57. In addition, when the user tries to move the bed body 13 from the first position P1 to the second position P2 to put it into use, a clicking sensation can be imparted to the hand of the user when the first tip 21 of the fourth engagement portion 72 falls into the first recess 57. This allows the user to recognize that the ladder portion 14 is correctly fixed to the bed body 13.

The fourth engagement part 72 has a rod-shaped rod part 45 and a first tip part 21 that protrudes outward from the rod part 45 and is stored within the rod part 45, and the first sliding surface 56 is inclined so as to approach the rod part 45 as it approaches the first recess 57.

This allows the ladder section 14 to be guided to the correct position relative to the bed body 13 through the abutment between the first sliding surface 56 and the fourth engagement section 72.

The bed body 13 has a fence member 33 extending in the horizontal direction, the fourth engagement portion 72 is provided at the tip side of the ladder portion 14, and the ladder portion 14 has a hook 44 further toward the tip side than the fourth engagement portion 72 that can be hooked onto the fence member 33.

With this configuration, the fourth engagement portion 72 can be aligned with the third engagement portion 71, with the hook 44 and the fence member 33 as fulcrums. This allows the user to engage the fourth engagement portion 72 with the third engagement portion 71 while the weight of the ladder portion 14 is borne by the fence member 33 and the hook 44 when attaching the ladder portion 14 to the bed body 13. This reduces the workload on the user, making it easier to attach the ladder portion 14.

The fourth engagement portion 72 has a second tip portion 22 provided on the opposite side to the first tip portion 21, and the third engagement portion 71 has a second smooth surface 65 that abuts against the second tip portion 22 to allow the second tip portion 22 to move laterally, a second recess 66 that is provided adjacent to the second smooth surface 65 and into which the second tip portion 22 falls and restricts the second tip portion 22 from moving laterally, and a second groove portion 68 that extends downward from the second recess 66 and allows the second tip portion 22 located within the second recess 66 to move downward.

According to this configuration, the second recess 66 also restricts the second tip 22 of the fourth engagement part 72 from moving laterally, so that when the bed body 13 is in the second position P2, the ladder part 14 does not come off the second recess 66 via the second sliding surface 65. Therefore, a structure can be realized in which the ladder part 14 does not easily come off the bed body 13 in the second position P2, which is the use state. This prevents the ladder part 14 from falling off the bed body 13 when the bed is in use, which can prevent the user from getting off the bed body 13. In addition, when the bed body 13 is returned from the second position P2 to the first position P1, the bed body 13 rotates upward, so that the second tip 22 can be semi-automatically released from the second recess 66 via the second groove part 68 as the bed body 13 rotates. Therefore, the user can easily separate the ladder part 14 from the bed body 13.

The second tip 22 can move back and forth along the axial direction of the fourth engagement part 72, and the second tip 22 of the fourth engagement part 72 is biased by the spring 46 in a direction to fall into the second recess 66.

This makes it possible to realize a configuration in which the second tip 22 does not easily fall off the second recess 66. In addition, when the user tries to move the bed body 13 from the first position P1 to the second position P2 to put it into use, a clicking sensation can be imparted to the hand of the user when the second tip 22 of the fourth engagement portion 72 falls into the second recess 66. This allows the user to recognize that the ladder portion 14 is correctly fixed to the bed body 13.

The fourth engagement portion 72 has a rod-shaped rod portion 45 and a second tip portion 22 that protrudes outward from the rod portion 45 and is stored within the rod portion 45, and the second smooth surface 65 is inclined so that it approaches the rod portion 45 as it approaches the second recess 66.

As a result, the ladder section 14 can be guided to the correct position relative to the bed body 13 through the abutment between the second sliding surface 65 and the fourth engagement section 72. Also, as the fourth engagement section 72 approaches the second recess 66, the second tip section 22 can be pushed into the rod section 45 against the repulsive force of the spring 46. This allows the second tip section 22 to easily climb over the steps around the second recess 66.

The above-described embodiment can be implemented with various substitutions and modifications. That is, in the above-described embodiment, the tip portions of the first and fourth engagement portions are formed as a pair, and the second and third engagement portions are formed as a pair, but the embodiment of the present invention is not limited to this. In the present invention, the tip portions of the first and fourth engagement portions may be formed as one piece rather than a pair, and the second and third engagement portions may be formed as one piece rather than a pair.

11 Storage bed 12 Support portion 13 Bed body 14 Ladder portion 15 First engagement portion 16 Second engagement portion 17 Operating rod 21 First tip portion 22 Second tip portion 33 Fence member 44 Hook 45 Rod portion 46 Spring 51 Left member 52 Right member 56 First sliding surface 57 First recess 61 First groove portion 65 Second sliding surface 66 Second recess 68 Second groove portion 71 Third engagement portion 72 Fourth engagement portion P1 First position P2 Second position

Claims (16)

A support portion;
a bed body supported by the support portion so as to be rotatable between a first position standing vertically and a second position extending horizontally;
a ladder portion that is detachable from the bed body in the second position;
A first engagement portion provided on the bed body, the first engagement portion being rod-shaped and having a first tip portion;
A second engagement portion provided on the ladder portion and capable of engaging with the first tip portion;
Equipped with
The second engagement portion is
a first smooth surface that abuts against the first tip portion to allow the first tip portion to move laterally;
a first recess provided adjacent to the first smooth surface, into which the first tip portion is recessed and which restricts the recessed first tip portion from moving in the lateral direction;
a first groove extending upward from the first recess and allowing the first tip located within the first recess to move upward;
A storage bed having: The first tip portion is movable forward and backward along an axial direction of the first engagement portion,
The storage bed according to claim 1 , wherein the first tip of the first engagement portion is biased by a spring in a direction to fall into the first recess. The first engagement portion has a rod portion having a rod shape and the first tip portion that protrudes outward from the rod portion and is stored within the rod portion,
The storage bed according to claim 2 , wherein the first sliding surface is inclined so as to approach the rod portion as it approaches the first recess. The bed body has a fence member extending in the lateral direction,
The second engagement portion is provided on the tip side of the ladder portion,
A storage bed according to any one of claims 1 to 3, wherein the ladder portion has a hook further towards the tip side than the second engagement portion, the hook being capable of being hung on the fence member. The storage bed according to any one of claims 1 to 4, wherein the first engagement portion is provided on the bottom of the bed body and also serves as an operating handle for moving the bed body between the first position and the second position. A storage bed according to any one of claims 1 to 5, comprising an operating rod suspended from the first engagement portion and extending in the lateral direction. The first engagement portion has a second tip portion provided on an opposite side to the first tip portion,
The second engagement portion is
a second smooth surface that abuts against the second tip portion to allow the second tip portion to move laterally;
a second recess provided adjacent to the second smooth surface, into which the second tip portion is recessed and which restricts the recessed second tip portion from moving in the lateral direction;
a second groove extending upward from the second recess and allowing the second tip located within the second recess to move upward;
The storage bed according to any one of claims 1 to 6, comprising: The second tip portion is movable forward and backward along an axial direction of the first engagement portion,
The storage bed according to claim 7 , wherein the second tip of the first engagement portion is biased by a spring in a direction to drop into the second recess. The first engagement portion has a rod portion having a rod shape and the second tip portion that protrudes outward from the rod portion and is stored within the rod portion,
The storage bed according to claim 8 , wherein the second sliding surface is inclined so as to approach the rod portion as it approaches the second recess. A support portion;
a bed body supported by the support portion so as to be rotatable between a first position standing vertically and a second position extending horizontally;
a ladder portion that is detachable from the bed body in the second position;
A third engagement portion provided on the bed body;
a fourth engaging portion provided on the ladder portion, the fourth engaging portion being rod-shaped and having a first tip portion engageable with the third engaging portion;
Equipped with
The third engagement portion is
a first smooth surface that abuts against a first tip portion of the fourth engagement portion to allow the first tip portion to move in a lateral direction;
a first recess provided adjacent to the first smooth surface, into which the first tip portion is recessed and which restricts the recessed first tip portion from moving in the lateral direction;
a first groove extending downward from the first recess and allowing the first tip located within the first recess to move downward;
A storage bed having: The first tip portion is movable forward and backward along an axial direction of the fourth engagement portion,
The storage bed according to claim 10, wherein the first tip of the fourth engagement portion is biased by a spring in a direction to drop into the first recess. The fourth engagement portion has a rod portion having a rod shape and the first tip portion that protrudes outward from the rod portion and is stored within the rod portion,
The storage bed of claim 11, wherein the first slide surface is inclined so as to approach the rod portion as it approaches the first recess. The bed body has a fence member extending in the lateral direction,
The fourth engagement portion is provided on the tip side of the ladder portion,
The storage bed according to any one of claims 10 to 12, wherein the ladder portion has a hook further toward the tip side than the fourth engagement portion, the hook being capable of being hung on the fence member. the fourth engagement portion has a second tip portion provided on an opposite side to the first tip portion,
The third engagement portion is
a second smooth surface that abuts against the second tip portion to allow the second tip portion to move laterally;
a second recess provided adjacent to the second smooth surface into which the second tip portion falls and which restricts the second tip portion from moving in the lateral direction;
a second groove extending downward from the second recess and allowing the second tip located within the second recess to move downward;
The storage bed according to any one of claims 10 to 13, comprising: The second tip portion is movable forward and backward along an axial direction of the fourth engagement portion,
The storage bed according to claim 14, wherein the second tip of the fourth engagement portion is biased by a spring in a direction to drop into the second recess. The fourth engagement portion has a rod portion having a rod shape and the second tip portion that protrudes outward from the rod portion and is stored within the rod portion,
The storage bed of claim 15, wherein the second slide surface is inclined so as to approach the rod portion as it approaches the second recess.

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