JP4184235B2 - Diaper changing bed - Google Patents

Description

  The present invention relates to a diaper changing bed used when changing a baby's diaper.

  In a department store, shopping center, etc., a diaper replacement bed that is attached to the wall of a washroom, toilet, etc., and used to change baby diapers, has a horizontal axis on the base part through the hinge to the base part. There is one in which it is pivotably attached around the bed and the bed portion is tilted substantially horizontally when used (Patent Document 1).

The bed portion of this type of diaper replacement bed conventionally includes a bed frame that is rectangular in plan view, and an upper cover and a lower cover that are disposed on both upper and lower sides of the bed frame. The upper cover has a recessed portion that fits into the bed frame from the upper side, and the upper cover and the lower cover are fixed to the bed frame by rivets on the outer peripheral side so as to cover the opposing edges of the upper cover and the lower cover. A strip-shaped gasket is attached in the circumferential direction. The rear portion of the bed frame is pivotally attached to the base frame of the base portion via a hinge, and a gas spring is provided between the base frame and the bed frame to urge the bed portion in the folding direction.
Japanese Utility Model Publication No. 6-34564

  The conventional diaper replacement bed has a drawback that the structure of the bed portion is very complicated, the number of parts and the number of assembling steps are increased, and the production cost is greatly increased. In other words, the conventional structure uses a bed frame that is structurally complex, and uses an upper cover, a lower cover, and a gasket. Therefore, the structure of the bed is extremely complicated and the number of parts increases. After individually fixing the cover and the lower cover to the upper and lower sides of the bed frame, it is necessary to cover the edge part of the upper cover and the lower cover with a gasket in the circumferential direction, so the assembly is complicated and the assembly man-hour increases significantly. There are drawbacks.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a diaper replacement bed that can reduce the number of parts and assembly man-hours and can be manufactured easily and inexpensively.

  The present invention includes a base portion 5 attached to a required portion such as a wall surface 1 and a bed portion 7 pivotally attached to the base portion 5 via a hinge 6 so as to be foldable around a horizontal axis. In the diaper replacement bed, the bed portion 7 includes a hollow bed 33 in which an insertion space 48 in the front-rear direction that opens to the rear side is formed, and a left-right direction inserted into the insertion space 48 from the rear opening. A bed frame 34 having a plurality of support members 38 and pivotally attached by the hinge 6.

  The bed body 33 includes an upper bottom wall portion 40 and a lower bottom wall portion 41 that are arranged at predetermined intervals in the vertical direction, an inner peripheral wall portion 42 that rises from the periphery of the upper bottom wall portion 40, and the lower bottom The outer peripheral wall 43 standing up from the periphery of the wall 41, the top wall 44 connecting the upper ends of the inner and outer peripheral walls 42, 43, the upper bottom wall 40 and the lower bottom wall 41 are connected. A plurality of reinforcing walls 45 may be integrally provided in the left-right direction, and the insertion space 48 may be provided between the adjacent reinforcing walls 45 on the lower side of the upper bottom wall portion 40.

  The bed frame 34 may include a left and right rear frame member 37 pivotally attached by the hinge 6 and the support member 38 projecting forward from the rear frame member 37. Further, the bed body 33 may be fixed to the support member 38 by a fixture 54 inserted through the upper bottom wall portion 40.

  Further, the inner peripheral wall portion 42, the outer peripheral wall portion 43, and the top wall portion 44 form a bank portion 46 of the bed body 33. On the base portion 5 side of the bank portion 46, left and right step portions 51 and 51 A recess 50 is formed between the step portion 51 and the opening 52 formed between the inner and outer peripheral wall portions 42 and 43 and the lower portion of the base portion 5 is fitted. The bed frame 34 can be inserted into the bed body 33.

  Further, the hinge shaft 6a of the hinge 6 is disposed in the vicinity of the rear of the inner peripheral wall portion 42, and a bent portion 55 that is bent rearward in the vicinity of the hinge shaft 6a is provided in the inner peripheral wall portion 42 on the concave portion 50 side. The tongue portion 30 is provided on the base portion 5 side, and the tongue portion 30 overlaps with the upright portion 56 from the front side above the bent portion 55 when the bed portion 7 is in the use posture D. May be.

  The base portion 5 includes a base frame 17 that supports the bed frame 34 via the hinge 6, and a base cover 18 that covers the base frame 17. The base cover 18 is a front side of the base frame 17. The front wall portion 24, the side wall portion 25 that is bent rearward from both the left and right sides of the front wall portion 24 and covers the base frame 17 from both the left and right sides, and the front wall portion 24 that protrudes obliquely downward from the front. A tongue piece 30, and each step 51 includes a left and right lower step 51 a corresponding to the lower end of each side wall 25 and an upper step 51 b close to the left and right outer sides of each side wall 25. good.

  In the present invention, the number of parts on the bed 7 side and the number of assembling steps can be reduced, and there is an advantage that it can be manufactured easily and inexpensively.

  Embodiments of the present invention will be described below in detail with reference to the drawings. 1-16 illustrate a first embodiment of the present invention. 1 to 5, reference numeral 1 denotes a wall surface such as a washroom, and 2 denotes a floor surface thereof. Reference numeral 3 denotes a diaper replacement bed, a stand part 4 detachably fixed to a required part such as the wall surface 1, a base part 5 detachably mounted on the upper front side of the stand part 4, A folding posture U (see the imaginary line in FIG. 3, FIG. 13) which is pivotally attached to the lower end portion by a hinge 6 so as to be foldable around a hinge shaft 6 a in the left-right direction and folded along the base portion 5 and forward from the base portion 5. A bed portion 7 whose posture can be changed to a use posture D (see solid lines in FIGS. 1 and 3) that protrudes substantially horizontally is provided, and a biasing means 8 that biases the bed portion 7 in the folding direction.

  As shown in FIG. 7, the stand portion 4 includes a flat vertically long stand frame 9, a stand cover 10 that protrudes in a semicircular cross-section toward the front side and covers the stand frame 9 below the bed portion 7. It has. An upper side of the stand frame 9 is fixed to the anchor on the wall surface 1 side by bolts 12, and a ground plate 13 at the lower end is fixed to the anchor on the floor surface 2 side by bolts 14. The stand frame 9 is formed by bending a sheet metal material, and the stand cover 10 is detachably fixed to the stand frame 9 with screws 16 or the like from both the left and right sides.

  The base unit 5 includes a base frame 17 that is detachably attached to an upper portion of the stand frame 9, and a base cover 18 that covers the base frame 17 and the urging means 8 from the front side. As shown in FIGS. 6 and 8 to 10, the base frame 17 includes a horizontal frame member 19 disposed on the upper side, and a pair of left and right vertical frame members 20 fixed to the back side of the horizontal frame member 19 and depending downward. 21 and a receiving frame 22 in the left-right direction fixed to the front surface on the lower end side of each pair of left and right vertical frame members 20, 21. The horizontal frame member 19, the vertical frame members 20, 21, and the receiving frame 22 are made of angle members. The left and right receiving frames 22 may be provided integrally so as not to interfere with the urging means 8. In the base frame 17, the stand frame 9 is inserted between the inner vertical frame members 20, and each vertical frame member 20 is fixed to the stand frame 9 by two upper and lower bolts 23. The receiving frame 22 protrudes to the front side, and the lower surface side is a receiving surface for the bed portion 7.

  The base cover 18 has a substantially horizontally long rectangular shape when viewed from the front, and as shown in FIGS. 9, 10, and 12, a front wall portion 24 that covers the base frame 17 and the urging means 8 from the front side, and a front wall portion 24. The side wall 25 in the vertical direction that is bent rearward from the left and right ends and the base frame 17 from both left and right sides, and the upper end of each side wall 25 is bent rearward from the upper end of the front wall 24 and the base frame 17. The upper wall portion 26 that covers the left and right sides, the receiving edge portion 27 that protrudes upward along the wall surface 1 from the rear end of the upper wall portion 26, and the front wall portion 24 that bends and projects obliquely downward from the lower end portion of the front wall portion 24. The tongue piece portion 30 is integrally formed. Each side wall 25 is detachably fixed to a vertical frame member 21 outside the base frame 17 by a fixing tool 28 such as a screw or a fixing pin.

  The base cover 18 is large enough to cover the front wall portion 24, the side wall portion 25, and the upper wall portion 26 with the bed portion 7 when the bed portion 7 is in the folded posture U as shown in FIGS. 13 and 14. And the front edge side of the bed part 7 at that time is received by the edge part 27. The receiving edge 27 has a shape in which the upper edge substantially coincides with the front edge side of the bed portion 7 when the bed portion 7 is folded. The receiving edge 27 is provided with buffer bodies 29 with which the bed 7 abuts on the left and right.

  The base cover 18 is a hollow body formed by blow molding, and the front wall portion 24, the side wall portion 25, the upper wall portion 26, and the tongue piece portion 30 are hollow. The receiving edge 27 is plate-shaped. The front wall portion 24 and the left and right side wall portions 25 have a frontal portal shape as a whole, the front wall portion 24 is formed on the front side thereof, and the inside communicates with each other.

  As shown in FIGS. 5, 6, and 12, the tongue piece portion 30 has a length that extends over substantially the entire length in the left-right direction of the front wall portion 24, projects downward from the lower end of the side wall portion 25, and the front wall portion 24. It is bent diagonally forward and downward from the lower end. And the tongue piece part 30 is a hollow shape thinner than the front wall part 24 except for the thin plate-shaped part 60 of the part corresponding to the hinge 6, and the lower end edge is a circular surface.

  The front wall 30a of the tongue piece 30 is flat as a whole including the thin plate-like portion 60 as shown in FIG. 15, and the rear wall 30b is a relief in which a portion corresponding to the thin plate-like portion 60 is recessed in the front side. It is a recess 61 and is connected to the rear wall 24 a side of the front wall portion 24 via a stepped portion 62 slightly above the lower end of the side wall portion 25. A plurality of reinforcing bulges 63 are formed between the rear wall 24a of the front wall part 24 and the rear wall 30b of the tongue piece part 30 in the left-right direction so as to obliquely cross the stepped part 62.

  As shown in FIG. 11, the urging means 8 is constituted by a gas spring 8a or the like, and is arranged in an up-and-down direction at an appropriate location such as the center in the left-right direction. The biasing means 8 is attached to a bracket 31 whose cylinder side is fixed to the left and right center of the horizontal frame member 19, and a rod side is attached to a bracket 32 on the base frame 17 side which will be described later. In the front wall portion 24, a concave portion 24b corresponding to the gas spring 8a is formed in the center portion in the left-right direction of the rear wall 24a.

  As shown in FIGS. 8 to 11, the bed portion 7 includes a bed body 33 formed in a substantially horizontally long rectangular shape so that an infant or the like can be laid in the left-right direction along the wall surface 1, and a base via a hinge 6. A bed frame 34 pivotally attached to the frame 17 and supporting the bed body 33 therein, a mat 35 laid in the bed portion 7, and a safety belt 36 for stopping an infant's body on the mat 35. ing.

  The bed frame 34 includes a rear frame member 37 such as a rectangular cylinder arranged in the left-right direction, and a plurality of, for example, a pair of left and right support members 38 arranged in the front-rear direction and projecting forward from the rear frame member 37. It has. The rear frame member 37 is connected to the receiving frame 22 by the hinge 6, and contacts the lower side of the receiving frame 22 when the bed portion 7 is in the use posture D. The hinge 6 is a hinge type, with one mounting plate 6b on the upper surface of the receiving frame 22 and the other mounting plate 6c on the front surface of the rear frame member 37 so that the hinge shaft 6a is located at the front end of the receiving frame 22. Attached to each.

  The bed 33 includes an upper bottom wall portion 40 and a lower bottom wall portion 41 that are arranged at predetermined intervals in the vertical direction, an inner peripheral wall portion 42 that stands up from the periphery of the upper bottom wall portion 40, and a lower bottom wall portion 41. An outer peripheral wall 43 standing up from the periphery of the inner wall, a top wall 44 connecting the upper ends of the inner and outer peripheral walls 42, 43, and a reinforcing wall 45 connecting the upper bottom wall 40 and the lower bottom wall 41. A bank portion 46 is formed over the entire circumference of the bed 33 by the inner and outer peripheral wall portions 42 and 43 and the top wall portion 44.

  As shown in FIG. 8, the reinforcing wall 45 is formed in a V-shape in the front-rear direction between the upper bottom wall portion 40 and the lower bottom wall portion 41, and a V-groove or the like in which the upper side of the reinforcing wall 45 opens upward. The front and rear grooves 47 are provided. Whereas the upper bottom wall portion 40 is substantially horizontal, the lower bottom wall portion 41 is curved in an arc shape when viewed from the front so that the central portion in the left-right direction swells slightly downward. For this reason, the reinforcing wall 45 and the front and rear grooves 47 are predetermined in the left-right direction so that the central portion where the distance between the upper bottom wall portion 40 and the lower bottom wall portion 41 is large is large in the vertical and horizontal directions, and both the left and right sides are small. A plurality are formed at intervals.

  An insertion space 48 in the front-rear direction that opens to the rear side is formed below the upper bottom wall portion 40, and a support member 38 is inserted into the insertion space 48 from the rear side. In the insertion space 48, the distance between a pair of adjacent reinforcing walls 45 arranged on both the left and right sides is made substantially the same as the width of the support member 38, and the pair of adjacent reinforcing walls 45 is used as the insertion space 48. In addition, as for the upper bottom wall part 40, between the pair of adjacent reinforcement walls 45 of a center, and between a pair of adjacent reinforcement walls 45 on either side is a little low compared with another part.

  As shown in FIG. 11, a gentle arc-shaped recessed portion 49 is formed on the front side of the bank portion 46 of the bed body 33, and the lower end side of the base portion 5 is located on the rear base portion 5 side. A recessed portion 50 to be fitted is formed. The recessed portion 49 is for placing a hand when the bed portion 7 in the folded posture U is brought down to the use posture D.

  The recess 50 has a step 51 on both the left and right sides, and an opening 52 formed between the inner and outer peripheral wall portions 42 and 43 between the step 51. The bed frame 34 has a frame member 37 that is slightly shorter than the left and right widths of the opening 52 and can be inserted into the bed 33 through the opening 52 from the rear, and each support member 38 is inserted through the opening 52 on the rear side. It is inserted into the space 48. Further, the rear frame member 37 is disposed in the bed body 33, and the standing edge 53 of the outer peripheral wall 43 is in contact with or close to the rear surface.

  The bed body 33 is fixed to the support member 38 by a fixing tool 54 such as a tapping screw inserted through the upper bottom wall portion 40 between the pair of reinforcing walls 45. If a tapping screw is used for the fixture 54, the support member 38 is inserted into the insertion space 48, and then the tapping screw is inserted into the support member 38 from above the upper bottom wall portion 40, so that the bed body 33 and the bed The frame 34 can be easily fixed.

  The hinge shaft 6 a of the hinge 6 is disposed in the vicinity of the rear of the inner peripheral wall portion 42. As shown in FIG. 15, the inner peripheral wall portion 42 on the concave portion 50 side has a bent portion 55 that bends to the rear side in the vicinity of the upper side of the hinge shaft 6 a and an upright portion 56 that stands upward from the bent portion 55. Except for the portion corresponding to the hinge 6, the opening 52 is formed over substantially the entire length. The portion corresponding to the hinge 6 is inclined at substantially the same angle as the lower side of the inner peripheral wall portion 42 so as not to interfere with the mounting plate 6b of the hinge 6 when the bed portion 7 is in the folded posture U, and the standing portion An escape portion 56 a that protrudes forward of 56 is provided.

  The bent portion 55 is curved substantially concentrically with respect to the hinge shaft 6 a of the hinge 6. When the bed portion 7 is in the use posture D, the bent portion 55 is near the upper side of the bent portion 55 and near the front side of the standing portion 56. The piece portion 30 is located, and the escape portion 56 a enters the escape recess 61 on the back side of the thin plate-like portion 60. Accordingly, the lower end portion of the base cover 18 and the upper end portion of the inner peripheral wall portion 42 of the bed portion 7 overlap each other at a slight interval when the bed portion 7 is in the use posture D, and the bed portion 7 is located on the upper side from the use posture D. Even when they are rotated vertically within a predetermined angle, it is possible to maintain a substantially constant gap therebetween. The predetermined angle is an angle at which the bed 7 on which the infant is placed may turn upward due to carelessness of the user or the like, for example, about 30 to 40 degrees.

  As shown in FIGS. 11 and 16, the left and right step portions 51 of the recess 50 include left and right lower step portions 51 a corresponding to the lower ends of the side wall portions 25 and upper step portions 51 b that are close to the left and right outer sides of the side wall portions 25. I have. The upper step portion 51b is closed on the inner and outer surfaces, the upper surface, and the base portion 5 side, and the lower step portion 51a is closed on the inner and outer surfaces and the upper surface.

  The safety belt 36 includes two belts 58 and 59 that can be connected by a connecting device 57. The base of each belt 58 and 59 is a screw or the like on the upper bottom wall portion 40 between a pair of adjacent reinforcing walls 45 in the center. It is fixed with. The base side of the belts 58 and 59 is covered with a mat 35.

  In the diaper replacement bed having the above-described configuration, the bed portion 7 is normally folded in the folding posture U along the base portion 5 and held in that state by the gas spring 8a.

  When used when changing an infant's diaper, first, a hand is placed on the recessed portion 49 formed on the front side of the bank portion 46 of the bed portion 7 to pull the bed portion 7 forward. Then, while resisting the gas spring 8a, the bed portion 7 is gently rotated forward around the hinge shaft 6a in the left-right direction of the hinge 6 and falls to the use posture D.

  In this use posture D, the rear frame member 37 of the bed frame 34 comes into contact with the receiving frame 22 of the base frame 17 from the lower side, and the bed portion 7 becomes substantially horizontal. The urging force of the gas spring 8a is set so as not to turn the bed portion 7 upward by itself.

  When the bed portion 7 is in the use posture D, the infant is then placed on the bed portion 7 and laid sideways, and the infant's body is stopped with the safety belt 36. In this state, the infant's diaper is changed. When the diaper replacement is completed, the bed portion 7 is rotated upward around the hinge shaft 6 a of the hinge 6, and the bed portion 7 is folded along the base portion 5. At this time, since the urging force of the gas spring 8a works in the folding direction of the bed portion 7, the bed portion 7 can be lightly folded.

  This embodiment has the following advantages. That is, the stand unit 4 includes a stand frame 9 fixed to the wall surface 1 and the like, and a stand cover 10 that covers the stand frame 9 below the bed unit 7, and the base unit 5 is mounted on the top of the stand frame 9. The base frame 17 and a base cover 18 covering the base frame 17 are provided, and the bed portion 7 is pivotally attached to the base frame 17 by the hollow molded body 33 and the hinge 6 and supports the bed body 33 from the inside. Therefore, there is an advantage that the number of parts in each part is small and the structure can be simplified.

  When the bed body 33 is manufactured, a hollow body without the opening 52 is first formed by blow molding or the like, and then the gaps 51 between the left and right sides of the concave portion 50 formed on the rear side of the bank 46 are cut off. Thus, the opening 52 is formed. For this reason, the bed body 33 having an integral structure can be easily manufactured. In addition, the rear bank portion 46 is formed in a shape substantially the same as the lower step portion 51a between the left and right lower step portions 51a, and then the left and right lower step portions 51a are cut to form the opening 52. A recess 50 having an opening 52 between the left and right step portions 51 can be easily formed.

  The bed 33 includes an upper bottom wall portion 40 and a lower bottom wall portion 41 that are arranged at predetermined intervals in the vertical direction, an inner peripheral wall portion 42 that rises from the periphery of the upper bottom wall portion 40, and a lower bottom wall portion. 41 in the left-right direction connecting the upper wall 40 and the lower bottom wall 41, the outer wall 43 standing up from the periphery 41, the top wall 44 connecting the upper ends of the inner and outer walls 42, 43. Since the reinforcing wall 45 is integrally provided, the strength can be sufficiently secured with a simple structure even though it is integrally formed by a hollow molding method such as blow molding.

  After the bed body 33 is manufactured, the bed body 33 is assembled by connecting the bed frame 34 to the bed body 33. In this case, the standing edge 53 formed on the outer peripheral wall 43 below the opening 52 is tilted backward by its elastic deformation, and in this state, the ends of the pair of support members 38 are placed in the opening 52. Then, the support member 38 is pushed into the insertion space 48. In this case, since the space between adjacent reinforcing walls 45 on the lower side of the upper bottom wall portion 40 is an insertion space 48, the supporting member 38 can be guided by the reinforcing wall 45, and a member for guiding the supporting member 38 needs to be provided separately. There is no.

  When the rear frame member 37 of the bed frame 34 passes through the standing edge 53 and the entire bed frame 34 is accommodated in the bed body 33, the standing edge 53 is returned and brought into contact with the back surface of the rear frame member 37. 33 and the bed frame 34 are adjusted to appropriate positions, and then the tapping screws are inserted into the support members 38 from the upper bottom wall portion 40 side at two positions in the front and rear directions to fix the bed body 33 and the bed frame 34. As a result, the man-hours for assembling on the bed portion 7 side can be significantly reduced, and the production cost of the bed portion 7 can be reduced as much as possible in combination with the reduction in the number of parts.

  The bed frame 34 may be pivotally attached in advance to the base frame 17 side via the hinge 6 before being incorporated into the bed body 33, but the hinge 6 is attached to the rear frame member 37 and attached to the bed body 33. The hinge 6 and the base frame 17 may be coupled after assembly.

  Further, since the bed frame 34 only needs to be inserted into the insertion space 48 on the bed body 33 side, the bed frame 34 has a left and right rear frame member 37 and a pair of left and right support members 38 projecting forward from the rear frame member 37. It is possible to use the one having a simple structure provided with the above, and in that respect, the manufacturing cost can be reduced. Moreover, the opening 52 is on the rear side of the bed body 33, and the rear frame member 37 of the bed body 33 is in the bed body 33, and the rising edge 53 of the outer peripheral wall 43 is in contact with the back surface thereof. Even though the structure is such that the bed frame 34 is inserted into the bed body 33 through the opening 52 and assembled because it is close, the appearance after assembly is not impaired, and There is no risk of injury by inserting a finger through the opening 52.

  When the bed portion 7 is tilted to the use posture D, the lower portion of the base portion 5 is fitted into the concave portion 50 of the bank portion 46, and the tongue piece portion 30 of the base cover 18 and the upright portion 56 of the inner peripheral wall portion 42 are vertically moved. It overlaps in the direction with a predetermined overlap amount. Therefore, when the bed portion 7 is brought down to the use posture D, the lower end portion of the base cover 18 and the upper end portion of the inner peripheral wall portion 42 on the concave portion 50 side are opposed to each other (Patent Document 1 or the like). And there is no fear of getting injured by inserting a finger through the gap.

  Further, an upright portion 56 is provided on the upper side of the inner peripheral wall portion 42 via a bent portion 55 that is bent rearward from the vicinity of the hinge shaft 6a adjacent to the inner peripheral wall portion 42, and the tongue piece portion 30 is configured in a flat hollow shape for use. Since the tongue piece 30 in the posture D is positioned above the bent portion 55 and in front of the upright portion 56, the strength of the upper side of the inner peripheral wall portion 42 and the tongue piece 30 increases, and the tongue Variation in the gap between the piece 30 and the inner peripheral wall 42 can be easily suppressed.

  That is, since the standing portion 56 is provided on the inner peripheral wall portion 42 via the bent portion 55, the strength of the upper side of the inner peripheral wall portion 42 is increased, and the tongue piece is placed on the bent portion 55 before the standing portion 56. A sufficient space for the portion 30 to be located can be secured. Further, since the tongue piece portion 30 is flat and hollow, the strength of the tongue piece portion 30 is increased as compared with a plate-like one, and the variation in gap due to deformation or the like is coupled with the increase in strength on the inner peripheral wall portion 42 side. It can be easily suppressed. Furthermore, even if the tongue piece 30 is flat and hollow, a space for the tongue piece 30 can be easily secured on the upper front side of the inner peripheral wall portion 42, so that the tongue piece 30 protrudes greatly into the bed portion 7. There is no such thing. The tongue piece 30 can be easily formed by forming the base cover into a hollow shape by blow molding or the like.

  Further, since the bent portion 55 is substantially concentric around the hinge shaft 6a, the tongue piece portion 30 and the bent portion 55 are also obtained when the bed portion 7 is rotated in the vertical direction within a predetermined range above the use posture D. It is possible to prevent a change in the gap between the two.

  Since the upper part of the inner peripheral wall part 42 is provided with a relief part 56a that projects forward from the upright part 56 so as not to interfere with the mounting plate 6b of the hinge 6 when the bed part 7 is in the folded posture U. The vertical length of the upright portion 56 can be increased to ensure a sufficient amount of vertical overlap with the tongue piece portion 30. In addition, the tongue piece 30 is provided with a relief recess 61 on the back side of the thin plate-like portion 60 so that the relief portion 56a of the inner peripheral wall portion 42 enters when the bed portion 7 is in the use posture D. The tongue piece part 30 can be made to approach the upright part 56, and the clearance gap can be made small.

  Further, the base cover 18 includes a front wall portion 24 that covers the base frame 17 from the front side, a side wall portion 25 that is bent rearward from the left and right sides of the front wall portion 24 and covers the base frame 17 from the left and right sides, and a front wall portion 24. Since the tongue piece portion 30 that protrudes obliquely downward from the lower end is provided, the structure is also simple. The base cover 18 has a hollow front wall portion 24, side wall portion 25, and tongue piece portion 30, but can be easily formed by blow molding or the like.

  In addition, the step portions 51 on both the left and right sides of the concave portion 50 include left and right lower step portions 51 a corresponding to the lower ends of the respective side wall portions 25 of the base cover 18 and upper step portions 51 b that are close to the left and right outer sides of the respective side wall portions 25. Therefore, the gap between the bed portion 7 in the usage posture D and each side wall portion 25 can be formed as a maze, and it is possible to prevent injuries by inserting a finger through the gap.

  17 to 19 illustrate a second embodiment of the present invention, and the base portion 5 is attached to a required portion such as the wall surface 1 via an attachment frame 70. The attachment frame 70 includes a pair of horizontal members 71 and 72 such as a pair of upper and lower strips and a pair of left and right vertical members 73 and 74 that connect the horizontal members 71 and 72 up and down. It is designed to be fixed to the wall 1 or the like. The vertical members 73 and 74 are formed of a rectangular tube or the like. The left and right inner vertical members 73 correspond to the left and right inner vertical frame members 20 of the base frame 17, and the left and right outer vertical members 74 correspond to the left and right outer vertical frame members 21 of the base frame 17, respectively. A bolt 23 for fixing the base frame 17 is fixed to the front surface of the vertical member 73. Thus, the mounting frame 70 may be used in place of the stand unit 4.

  As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to this Example, A various change is possible. For example, in the embodiment, the stand portion 4 and the mounting frame may have other shapes and structures. In short, a structure that can attach the base frame 17 of the base portion 5 to a required portion is sufficient.

  The base portion 5 is composed of a base frame 17 and a base cover 18, and the base frame 17 has a strength capable of reliably supporting the weight on the bed portion 7 side when attached to a required portion such as the wall surface 1. In addition, a structure that can pivotally attach the bed frame 34 via the hinge 6 is sufficient. The left and right receiving frames 22 of the base frame 17 may be constituted by a single member. The base cover 18 uses a hollow molded body in which a portion that does not interfere with the base frame 17, the urging means 8 and the like is formed in a hollow shape, but it is not necessary to have a hollow shape. Although the hinge 6 of the embodiment is a hinge type, a plurality of brackets can be provided on the base frame 17 and the bed frame 34 in the left-right direction, and a single hinge shaft 6a can be inserted into each bracket. It is.

  The bed body 33 has a bank portion 46 formed around it and a recess 50 formed in a portion corresponding to the base portion 5 on the rear side of the bank portion 46. The shape of the bank portion 46 and the recess 50 is other than that. But it ’s okay. There may be a plurality of support members 38 for the bed frame 34 in the left-right direction, and three or more support members 38 may be provided in the left-right direction. The insertion space 48 is formed inside the bed body 33 using the space between the left and right reinforcing walls 45, but the insertion space 48 may be formed in another part.

  The insertion space 48 may be any structure as long as the rear side is open and the support member 38 can be inserted from the opening 52 side. The interval between the reinforcing walls 45 and the left and right width of the insertion space 48 are made substantially the same as the left and right width of the support member 38, and in addition to the standing edge portion 53, a portion where the front surface of the rear frame member 37 abuts is provided. If the portion sandwiching the frame member 37 from the front and rear is provided on the bed body 33 side, it is not necessary to fix the bed body 33 to the support member 38 with the fixture 54.

  The safety belt 36 may be provided with a belt insertion / removal unit below the mat so that the two belts 58 and 59 can be inserted / removed freely by the belt insertion / removal unit. The biasing means 8 may be incorporated in the hinge 6 portion.

It is a perspective view of the use condition which shows the 1st Example of this invention. It is a front view of the use condition which shows the 1st Example of this invention. It is a side view of the use condition which shows the 1st Example of this invention. It is a partially broken rear view of the use condition which shows the 1st Example of this invention. It is a top view of the use condition which shows the 1st Example of this invention. FIG. 3 is an enlarged sectional view taken along line aa in FIG. 2. FIG. 3 is an enlarged sectional view taken along line bb in FIG. 2. FIG. 4 is an enlarged sectional view taken along line cc of FIG. 3. FIG. 3 is an enlarged sectional view taken along the line dd in FIG. 2. FIG. 3 is an enlarged sectional view taken along line ee in FIG. 2. 1 is an exploded perspective view showing a first embodiment of the present invention. It is a rear view of the base cover which shows the 1st Example of this invention. It is a perspective view of the folding state which shows the 1st Example of this invention. It is a front view of the folding state which shows the 1st Example of this invention. It is an expanded sectional view of the hinge periphery part which shows the 1st Example of this invention. It is an expanded sectional view of the step part periphery part which shows the 1st Example of this invention. It is a perspective view of the use condition which shows the 2nd Example of this invention. It is a top view of the use condition which shows the 2nd Example of this invention. It is a disassembled perspective view which shows the 2nd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wall surface 5 Base part 6 Hinge 6a Hinge shaft 7 Bed part 17 Base frame 18 Base cover 24 Front wall part 25 Side wall part 30 Tongue piece part 33 Bed body 34 Bed frame 37 Rear frame material 38 Support member 40 Upper bottom wall part 41 Bottom Bottom wall part 42 Inner peripheral wall part 43 Outer peripheral wall part 44 Top wall part 45 Reinforcement wall 46 Dyke part 48 Insertion space 50 Recessed part 51a Lower stage part 51b Upper stage part 52 Opening part 54 Fixing tool 55 Bending part 56 Standing part D Use posture

Claims (7)

  A base part (5) to be mounted on a required part such as a wall surface (1), and a bed part pivotably attached to the base part (5) via a hinge (6) so as to be foldable around a horizontal axis. 7), the bed portion (7) includes a hollow bed body (33) in which an insertion space (48) in the front-rear direction that opens to the rear side is formed, and the insertion space. (48) comprising a bed frame (34) having a plurality of support members (38) inserted in the left-right direction and inserted through the rear opening and pivotally attached by the hinge (6). Diaper change bed.   The bed body (33) has an upper bottom wall portion (40) and a lower bottom wall portion (41) that are arranged at predetermined intervals in the vertical direction, and an interior that stands up from the periphery of the upper bottom wall portion (40). A peripheral wall portion (42), an outer peripheral wall portion (43) rising from the periphery of the lower bottom wall portion (41), and a top wall portion (44) connecting upper ends of the inner and outer peripheral wall portions (42) and (43) ) And a plurality of reinforcing walls (45) in the left-right direction connecting the upper bottom wall portion (40) and the lower bottom wall portion (41). The diaper replacement bed according to claim 1, wherein the insertion space (48) is provided between the adjacent reinforcing walls (45) on the side.   The bed frame (34) includes a left and right rear frame member (37) pivotally attached by the hinge (6), and the support member (38) protruding forward from the rear frame member (37). The diaper replacement bed according to claim 1 or 2, wherein the bed is changed.   The diaper replacement bed according to claim 2, wherein the bed body (33) is fixed to the support member (38) by a fixture (54) inserted through the upper bottom wall (40).   A bank portion (46) of the bed body (33) is formed by the inner peripheral wall portion (42), the outer peripheral wall portion (43) and the top wall portion (44), and the base portion of the bank portion (46) is formed. (5) On the side, there are a step portion (51) on both the left and right sides and an opening (52) formed between the inner and outer peripheral wall portions (42) and (43) between the step portion (51) and A concave portion (50) into which a lower portion of the base portion (5) is fitted is formed, and the bed frame (34) is inserted into the bed body (33) from the opening (52). Item 5. The diaper replacement bed according to item 2 or 4.   The hinge shaft (6a) of the hinge (6) is disposed in the vicinity of the rear of the inner peripheral wall portion (42), and the inner peripheral wall portion (42) on the concave portion (50) side is connected to the hinge shaft (6a). An upright part (56) is provided via a bent part (55) that is bent rearward in the vicinity, and the bent part is provided on the base part (5) side when the bed part (7) is in a use posture (D). The diaper replacement bed according to claim 2, 3 or 5, wherein a tongue piece (30) is provided on the upper side of (55) so as to overlap the upright portion (56) from the front side.   The base portion (5) includes a base frame (17) that supports the bed frame (34) via the hinge (6), and a base cover (18) that covers the base frame (17), The base cover (18) is bent rearward from the front wall portion (24) on the front side of the base frame (17) and the left and right sides of the front wall portion (24), and the base frame (17) is bent from both the left and right sides. A side wall portion (25) for covering, and a tongue piece portion (30) projecting obliquely downward to the front from a lower end of the front wall portion (24), wherein each step portion (51) is each side wall portion (25). The diaper replacement bed according to claim 5, further comprising: a left and right lower step portion (51a) corresponding to the lower end of the left side portion; and an upper step portion (51b) adjacent to the left and right outer sides of each side wall portion (25). .

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