JP2010068967A - Reversed insertion-preventing mechanism for side rail device inserted into bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a risky gap which can catch a body from being left between a side rail and a board or between a pair of side rails inserted and supported on both sides of a bed by providing a mechanism which disables insertion and support of the side rail in a reversed state opposite to the original insert and support direction. <P>SOLUTION: The reversed insertion preventing mechanism for side rail device inserted into a bed includes a pair of support bars 8 protruded from the lower side of a side rail 7, and an insert support portion 9 provided on the bed 1 side and having a pair of insert ports 10 for inserting and supporting the support bars, the pair of support bars having circular circumferential sectional shapes having the same diameter. Reversed insertion preventing means 12 and 13 are provided in a position between the support bars of the side rail and a corresponding position between the insert ports. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a reverse insertion preventing mechanism for making it impossible to insert and support a side rail in an inverted state from the original insertion support side orientation in a bed insertion side rail device of a bed. It is.

  Various types of side rails for beds used in medical facilities and home-care facilities have been provided in the past. Of these, a support bar is provided on the lower side of the side rail. The plug-in side rail that supports the plug by inserting it into the insertion support provided on the bed side is widely used because it is not complicated in configuration and easy to handle.

  Such plug-in side rails generally have gaps around them, so depending on the physical ability of the bed user, a part of the body may be caught in the gaps. Since the gap generated between the headboard and the headboard exists on the head side, there is a high risk of a serious accident.

  For this reason, in the side rail, in order to be able to use it safely, the dimension of each part etc. are prescribed by standard, for example, IEC standard. That is, in the current IEC standard, when the side rail has a closed space, for example, when the side rail is configured in a lattice shape, the size of the space is set so that the user's head does not enter. It is defined to be 120 mm or less. In addition, when there is a space that is opened by a gap, such as a gap between the end of the side rail and the headboard or footboard, or a gap between the ends of the side rail, the size of the gap is determined by the user. It is specified to be 60 mm or less in order to prevent the head from entering, or to be 235 mm or more in order to prevent the head from being caught. These dimensions are defined in the revised IEC standard as, for example, less than 60 mm or greater than 318 mm between the side rails and between the side rails and the board.

  By the way, in general, the pair of support rods of the plug-in side rail is composed of a round pipe or the like, and the outer cross-sectional shape is a circular shape of the same diameter, so from the original plug support side orientation, Insertion support can be performed even in an inverted state, that is, reverse insertion is possible.

  However, as will be described later with reference to the drawings, since the recent insertion-type side rails are often asymmetrical, the above-mentioned dangerous gap does not occur on the original insertion support side. In many cases, reverse gaps can create dangerous gaps. And since the plug-in side rails are inserted and removed relatively frequently, there is a high risk of inadvertently inserting them back and forth.

Conventionally, as a mechanism for preventing reverse insertion in a device that performs insertion / removal, for example, Patent Document 1 discloses a reverse insertion prevention mechanism in a connector such as an interface cable connector used in an exchange or a transmitter. A reverse insertion preventing mechanism for a connector for a card such as an IC card has been proposed.
JP 2001-297828 A JP 2004-63093 A

  Conventional plug-in side rails do not have a reverse insertion prevention mechanism. Instead, they are alerted by instruction manuals or warning labels to prevent reverse insertion, but the effect is limited. was there.

  The present invention was devised in view of such a point. First, the insertion support in a state where the side rail is turned over from the original insertion support side is described in the above-mentioned patent documents. Like the reverse insertion prevention mechanism, it is mechanically impossible, so there is a gap between the side rail and the board, or between a pair of side rails that are inserted and supported side by side on the left and right sides, and there is a risk that the body may be pinched. One of the purposes is to avoid it.

  In addition, the present invention regulates the compatibility of the plug-in side rail for the new type of bed and the plug-in side rail for the old type of bed, and the plug-in side rail for the old type of bed Another object of the present invention is to prevent the above-mentioned dangerous gaps from occurring by making the beds unusable or mutually unusable.

  In order to solve the above-described problem, in the present invention, first, a pair of support rods project from the lower side of the side rail, and a pair of insertion holes for inserting and supporting the support rods on the bed side are provided. A pair of support rods have a circular cross-section with the same diameter as the pair of support rods, preventing reverse insertion between the support rods of the side rails and the corresponding insertion ports A reverse insertion prevention mechanism in a bed side rail device with a means is proposed.

  Further, in the present invention, in the above configuration, the reverse insertion preventing means includes a convex portion provided at a biased position between the support rods of the side rail, and a space between the insertion port of the insertion support portion corresponding to the convex portion. It is proposed to be composed of the receiving part provided in

  Further, in the present invention, in the above configuration, the reverse insertion preventing means includes a convex portion provided at a biased position between the insertion ports of the insertion support portion, and between the support rods of the side rail corresponding to the convex portion. It is proposed to be composed of the receiving part provided in

  Further, in the present invention, in the above configuration, the reverse insertion preventing means includes a convex portion provided on the outer side of one of the side rail support rods, and a corresponding insertion portion of the insertion support portion corresponding to the convex portion. Proposed to consist of a receiving part provided outside the mouth.

  And in this invention, in the above structure, it is proposed that a receiving part is comprised by a recessed part, or is comprised by a step part, or is comprised by the notch part of the edge part of an insertion support part.

  Next, in the present invention, on the lower side of the side rail, a pair of support rods are provided and an insertion support part having a pair of insertion ports for inserting and supporting the support rods on the bed side is provided, A pair of support rods in a configuration in which the outer peripheral cross-sectional shape is a circular shape with the same diameter, in a bed insertion-type side rail device in which any one of the support rods and a corresponding insertion port is provided with a reverse insertion prevention means A reverse insertion prevention mechanism is proposed.

  In the present invention, in the above configuration, the reverse insertion preventing means is formed on a part of the outer periphery of the support bar and on a part of the inner periphery of the insertion port corresponding to the protrusion. Or a concave portion formed on a part of the outer periphery of the support bar, and a convex portion formed on a part of the inner periphery of the insertion port corresponding to the concave portion. Or a convex part and a concave part formed on a part of the outer periphery of the support bar, and a convex part and a concave part formed on a part of the inner periphery of the insertion port corresponding to the convex part and the concave part. Suggest to do.

  Further, in the present invention, in the above configuration, the reverse insertion preventing means includes a short support rod body formed on one side and an insertion port formed correspondingly with a short insertion support length. suggest. Also, in this configuration, it is proposed to shorten the insertion support length by inserting a spacer into the insertion port.

  Next, in the present invention, a pair of support rods are provided on the lower side of the side rail, and an insertion support portion having a pair of insertion ports for inserting and supporting the support rods on the bed side is provided. In the configuration, the pair of support rods have different outer cross-sectional shapes, and each includes the cross-sectional shape of the inner periphery of the insertion port of the insertion support portion corresponding to each support bar. We propose a reverse insertion prevention mechanism for bed side rail devices with different shapes.

  Next, in the present invention, a configuration is provided in which a pair of support rods project from the lower side of the side rail and an insertion support portion having a pair of insertion ports for inserting and supporting the support rods on the bed side. In the original insertion support side, a first guide rod protrudes outward from one end portion of the side rail located on the board side of the bed, and a hook-shaped portion is formed at the tip of the first guide rod so as to go around the outside of the board. In addition, the second guide rod protrudes outward from the other end portion of the side rail, and a reverse portion of the bed side rail device in which the hook-shaped portion is formed at the end portion in a direction away from the bed. We propose a prevention mechanism.

  Between the support rods of the side rail and between the corresponding insertion ports, a convex portion provided at a biased position between the support rods of the side rail, and the difference between the insertion support portion corresponding to this convex portion A reverse insertion preventing means comprising a receiving portion provided between the insertion ports, or a convex portion provided at an offset position between the insertion ports of the insertion support portion, and a side rail support rod corresponding to the convex portion A reverse insertion preventing means comprising a receiving portion provided between the bodies, or a convex portion provided on the outside of one of the side rail support rods, and a corresponding difference in the insertion support portion corresponding to the convex portion In the reverse insertion prevention mechanism provided with the reverse insertion prevention means composed of the receiving part provided outside the insertion port, the convex part and the receiving part correspond when the side rail faces the original insertion support side Therefore, the insertion support can be performed without any restriction. However, in an inverted state from the original orientation of the insertion support side, the convex portion and the receiving portion do not correspond, and the normal insertion is hindered by the convex portion. Can be recognized, thus preventing reverse insertion.

  In the configuration in which the pair of support rods has a circular shape with the same cross-sectional shape on the outer periphery, any one of the support rods, and a protrusion formed on a part of the outer periphery of the support rod at the corresponding insertion port, A reverse insertion preventing means comprising a recess formed in a part of the inner periphery of the insertion slot corresponding to the protrusion, or a recess formed in a part of the outer periphery of the support bar, and Correspondingly, a reverse insertion preventing means comprising a convex part formed on a part of the inner periphery of the insertion port, or a convex part and a concave part formed on a part of the outer periphery of the support bar, and this convex part and A reverse insertion prevention means comprising a convex part and a concave part formed on a part of the inner periphery of the insertion port corresponding to the concave part, or a short support bar on one side, and a corresponding insertion In the reverse insertion prevention mechanism provided with the reverse insertion prevention means consisting of the insertion port formed with a short support length, the side rail is the original insertion When facing the holding side, the support bar on one side provided with the reverse insertion prevention means corresponds to the insertion port provided with the reverse insertion prevention means. The body can also be inserted normally into the corresponding outlet and can be inserted and supported without any restrictions. However, in an inverted state from the original orientation of the insertion support side, the support bar on one side provided with the reverse insertion prevention means does not correspond to the insertion port provided with the reverse insertion prevention means. The support bar on the one side is not normally inserted into the insertion slot, so that the operator can recognize that the side rail is on the reverse side, thus preventing reverse insertion.

  Next, the pair of support rods have different outer cross-sectional shapes, and the inner cross-sectional shapes of the insertion ports of the insertion support portion corresponding to the respective support rods are mutually included. In the reverse insertion prevention mechanism configured in a different shape, each support bar is inserted into the corresponding insertion port only when the side rail faces the original insertion support side, so there are no restrictions Insertion support can be performed without receiving. However, in the state of being turned upside down from the original insertion support side, the cross-sectional shape of the support bar and the insertion port do not match and are not included, so that normal insertion is hindered. It can be recognized that the rail is on the opposite side, and thus reverse insertion can be prevented.

  The pair of support rods has a circular cross-section with the same diameter on the outer periphery, and a reverse insertion prevention mechanism provided with a reverse insertion prevention means at one of the support rods and a corresponding insertion port. A concave portion formed in a part of this, and a convex portion formed in a part of the inner periphery of the insertion port corresponding to this concave portion as an element of the reverse insertion prevention means, or one side formed short In the case where the support rod body and the corresponding insertion port formed with a short insertion support length are used as elements of the reverse insertion prevention means, these support rods are formed with convex portions on a part of the inner periphery. Can be inserted into the insertion port that has not been shortened, or the insertion support length has not been shortened, but the support bar that does not have a recess formed on a part of the outer periphery is projected to a part of the inner periphery. Insert the support rod body that is not formed short into the insertion port formed with a short insertion support length It can not always be plugged.

  Therefore, in such a reverse insertion prevention mechanism, a safer side rail for the new type bed to which the present invention is applied can be inserted into and supported by the old type bed. The side rails can be used for a new bed, so-called backward compatibility can be provided.

  On the other hand, in the reverse insertion prevention mechanism in which the pair of support rods has a circular shape with the same outer diameter in the outer periphery, and a reverse insertion prevention means is provided at one of the support rods and the corresponding insertion port, the support rod The convex part and the concave part formed on a part of the outer periphery of the outer periphery and the convex part and the concave part formed on a part of the inner periphery of the insertion port corresponding to the convex part and the concave part are used as elements of the reverse insertion preventing means. And the pair of support rods have different cross-sectional shapes on the outer periphery, and include the cross-sectional shape of the inner periphery of each insertion port of the insertion support portion corresponding to each support rod. In the reverse insertion preventing mechanism configured in a different shape, the side rail for the new type bed to which the present invention is applied cannot be inserted and supported in the old type bed. Therefore, in this case, it is possible to prevent a decrease in safety due to the use of the side rail for the old type bed in the new type bed, and it is assumed that the new type side rail according to the present invention is originally used. By making it possible to use it only for the new type of bed, the original safety can be surely exhibited.

  A first guide rod protrudes outward from one end of the side rail located on the board side of the bed on the original insertion support side, and a hook-shaped portion that wraps around the outside of the board is formed at the tip. In the reverse insertion prevention mechanism in which the second guide rod protrudes outward from the other end portion of the side rail and the hook-shaped portion that extends in the direction away from the bed is formed at the end portion, In the state where it is turned upside down from the insertion support position or the original insertion support side direction, the hook portion of the first guide rod or the hook portion of the second guide rod becomes an obstacle, and the support rod body is inserted. This makes it possible for the operator to recognize that the side rail is on the opposite side, thus preventing the reverse insertion and supporting it in another position. Can do.

Next, an embodiment of a reverse insertion preventing mechanism in the bed side rail apparatus of the present invention will be described with reference to the accompanying drawings.
1 to 4 show the configuration and operation of the first embodiment of the reverse insertion preventing mechanism in the plug-in side rail device to which the present invention is applied, and FIGS. 5 and 6 illustrate the present invention. It is explanatory drawing for showing the operation | movement when not applying and contrasting.
1 to 4, reference numeral 1 denotes a bed, 2 denotes a base frame, 3 denotes a bottom support frame supported on the base frame 2 so as to be movable up and down, and 4 denotes a bottom support frame 3 which is divided into a plurality of parts and can be raised and lowered. The bottom is supported by 5, 5 is a headboard, and 6 is a footboard.

  Reference numerals 7h and 7f are side rails supported on the headboard 5 side and the footboard 6 side of the bed 1, respectively. These side rails 7h and 7f project a pair of support rods 8a and 8b on the lower side. ing. Reference numeral 9 denotes an accessory receiver supported by the bottom support frame 3, and these accessory receivers 9 are provided with a pair of insertion ports 10a and 10b for inserting and supporting the pair of support rods 8a and 8b. It constitutes the insertion support part. As described above, in the first embodiment, the insertion support portion is configured in the accessory receiver 9, but may be provided in the bottom support frame 3 itself as is well known. Hereinafter, the insertion support portion and the accessory receiver are similarly denoted by reference numeral 9.

  The side rails 7h and 7f are configured such that the shape of the main body is asymmetric with respect to the support rods 8a and 8b. That is, in this embodiment, the main body of the side rail 7h on the headboard 5 side is arranged so as to protrude outwardly from the support rods 8a and 8b on the left and right sides, but the left end protrusion. The length is shorter than the protruding length at the right end. The body of the side rail 7f on the footboard 6 side is arranged so that the right end protrudes outside the right support bar 8b, but the left end is located on the right side of the left support bar 8a. Is arranged.

  As shown in FIG. 3 or FIG. 5, these side rails 7h and 7f are close to the headboard 5 and the footboard 6 at the end of the board side when originally used, and the gap L2 between them is very small. The gap between the side rails 7h and 7f is designed to be a size defined by the above-mentioned IEC standard, for example, 469 mm.

  Therefore, considering the case where the side rails 7h and 7f are inserted and supported when the operator accidentally turns them over, first, in the side rails 7h on the headboard 5 side, the left end of the side rails 7h is turned to the head. Since it protrudes greatly outside the board 5, the operator does not mistake the front and back. However, in the side rail 7f on the footboard 6 side, the state of being supported upside down is a state in which the gap L1 ′ with the side rail 7h on the headboard 5 side is narrowed and the gap L2 ′ with the footboard 6 is widened. Therefore, this state may be inadvertently mistaken as the original support state. In this support state, the gap L1 ′ is narrower than the safe dimension, and the gap L2 ′ is wider than the safe dimension, for example, 60 mm or more. There is a risk of becoming 318mm or less.

  Therefore, in this embodiment of the present invention, as shown in FIGS. 1 to 4, the front and back sides are misaligned to the left and right sides between the support rods 8a and 8b of the side rail 7f on the side of the footboard 6. In this case, the projecting piece 12 protrudes downward from a portion of the lower crosspiece member 11 of the side rail 7f near the right support bar 8b. And the insertion port 13 which can insert the convex piece 12 in the location near the insertion port 10b between the insertion ports 10a and 10b of the insertion support part 9 corresponding to the position of this convex piece 12 is provided. ing. Therefore, the convex piece 12 corresponds to the convex portion described above, and the insertion port 13 corresponds to the receiving portion described above.

  In such a configuration, as shown in FIG. 1, when the side rail 7f faces the original insertion support side, the support rods 8a and 8b correspond to the insertion ports 10a and 10b, and the convex piece. 12 and the insertion port 13 correspond to each other, so that the support rods 8a and 8b of the side rail 7f are inserted into the insertion ports 10a and 10b of the insertion support portion 9 as shown in FIG. Support can be done with.

  However, in an inverted state from the original orientation of the insertion support side, the convex piece 12 and the insertion port 13 do not correspond as shown in FIG. Therefore, the operator can recognize that the side rail 7f is reverse to the front and back sides, and thus prevent reverse insertion.

  In the first embodiment described above, the side rail 7f on the footboard 6 side has been described, but the first embodiment can of course be applied to the side rail 7h on the headboard 5 side. . Further, the configuration of the main body of the side rail 7f may be configured by a plate shape or a combination thereof instead of the lattice frame shape as shown in the figure.

Next, FIG. 7 to FIG. 9 show the configuration and operation of the second embodiment of the reverse insertion prevention mechanism in the plug-in side rail device to which the present invention is applied.
In the second embodiment, as in the first embodiment, the main body of the side rail 7f is arranged so that the right end protrudes outside the right support bar 8b, but the left end is The insertion support portion 9 is disposed so as to be positioned on the right side of the left support bar 8a and provided with a pair of insertion ports 10a and 10b for inserting and supporting the support bars 8a and 8b. Consists of receiving. In this way, the constituent elements corresponding to the constituent elements of the first embodiment are denoted by the same reference numerals.

  In the second embodiment, the protrusion 14 is provided on the biased position between the insertion ports 10a and 10b of the insertion support portion 9, that is, on the upper surface close to 10b, and the lower crosspiece member 11 of the side rail 7f. Is provided with a step portion 15, and the right side of the step portion 15 in the figure of the lower horizontal cross member 11 is recessed upward. Accordingly, the protrusion 14 provided on the insertion support portion 9 corresponds to the above-described convex portion, and the portion of the lower horizontal beam member 11 that is recessed by the step portion 15 corresponds to the above-described receiving portion.

  In such a configuration, as shown in FIG. 7, when the side rail 7f faces the original insertion support side, the support rods 8a and 8b correspond to the insertion ports 10a and 10b, and the insertion is performed. Since the protrusion 14 of the support portion 9 corresponds to the recessed portion by the step portion 15 of the lower crosspiece member 11, the support bars 8a and 8b of the side rail 7f can be attached without any limitation as shown in FIG. It can be supported by being inserted into the insertion ports 10a, 10b of the insertion support portion 9.

  However, in an inverted state from the original insertion support side, as shown in FIG. 9, the projection 14 and the recessed portion of the lower horizontal beam member 11 do not correspond to each other, and the projection 14 does not correspond to the lower horizontal beam member 11 of the side rail 7f. Therefore, the operator can recognize that the side rail 7f is reverse to the front and back sides, thus preventing reverse insertion.

  The second embodiment described above has been described with respect to the side rail 7f on the footboard 6 side, but it can of course be applied to the side rail 7h on the headboard 5 side as in the first embodiment. It is. Further, the configuration of the main body of the side rail 7f may be configured by a plate shape or a combination thereof instead of the lattice frame shape as shown in the figure. Further, the receiving portion can be configured as a portion of the lower horizontal beam member 11 that is recessed by the step portion 15, and can be configured such that only a portion corresponding to the protrusion 14 is a concave portion.

Next, FIG. 10, FIG. 11 shows the structure and operation | movement of 3rd Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus to which this invention is applied.
In the third embodiment, as in the first embodiment, the main body of the side rail 7f is arranged so that the right end protrudes outside the right support bar 8b, but the left end is The insertion support portion 9 is provided so as to be positioned on the right side of the left support rod 8a and provided with a pair of insertion ports 10a and 10b for inserting and supporting the support rods 8a and 8b. Consists of receiving. In this way, the constituent elements corresponding to the constituent elements of the first embodiment are denoted by the same reference numerals.

  In the third embodiment, a hook-shaped convex piece 16 with a tip suspended is provided outside the left side support rod 8a in the drawing, and the insertion support portion 9 corresponding to the convex piece 16 is provided. The left end side is cut out to form a cutout portion 17. Therefore, the convex piece 16 corresponds to the convex portion described above, and the cutout portion 17 on the left end side of the insertion support portion 9 corresponds to the receiving portion described above.

  In such a configuration, as shown in FIG. 10, when the side rail 7f faces the original insertion support side, the support bar bodies 8a and 8b correspond to the insertion ports 10a and 10b, and the support bar Since the convex piece 16 projecting outside the body 8a corresponds to the outside of the cutout portion 17 of the insertion support portion 9, the side rail 7f can be supported by a support rod as shown in FIG. The bodies 8a, 8b can be supported by being inserted into the insertion ports 10a, 10b of the insertion support portion 9.

  However, in a state where the original insertion support side is turned upside down, the illustration is omitted, but the convex piece 16 protruding from the outside of the support bar 8a is the upper surface portion on the right side of the insertion support portion 9 in the drawing. Therefore, the convex piece 16 abuts on the upper surface of the insertion support portion 9 and normal insertion is hindered, so that the operator can recognize that the side rail 7f is reverse to the front and back sides. Thus, reverse insertion can be prevented.

  The third embodiment described above is also described with respect to the side rail 7f on the footboard 6 side. However, it can be applied to the side rail 7h on the headboard 5 side as well as the first embodiment. is there. Further, the configuration of the main body of the side rail 7f may be configured by a plate shape or a combination thereof instead of the lattice frame shape as shown in the figure.

Next, FIG. 12 shows the configuration of the fourth embodiment of the reverse insertion preventing mechanism in the plug-in side rail device to which the present invention is applied.
In the fourth embodiment, as in the first embodiment, the main body of the side rail 7f is arranged so that the right end protrudes outside the right support bar 8b, but the left end is The insertion support portion 9 is provided so as to be positioned on the right side of the left support rod 8a and provided with a pair of insertion ports 10a and 10b for inserting and supporting the support rods 8a and 8b. Consists of receiving. In this way, the constituent elements corresponding to the constituent elements of the first embodiment are denoted by the same reference numerals.

  Since the pair of support rods 8a and 8b have a circular cross-sectional shape with the same diameter, the support rods 8a and 8b themselves are inserted and supported in either of the insertion ports 10a and 10b as shown in FIG. Is possible. Therefore, in the fourth embodiment, a convex portion 18 is provided on one side, in this case, a part of the outer periphery of the support rod body 8b on the right side in the drawing, and inserted corresponding to the convex portion 18. A concave portion 19 is provided in a part of the inner periphery of the insertion port 10b of the support portion 9. Accordingly, the convex portion 18 and the concave portion 19 constitute the above-described reverse insertion preventing means.

  In this configuration, as shown in FIG. 12, when the side rail 7f faces the original insertion support side, the support bar bodies 8a and 8b correspond to the insertion ports 10a and 10b, and the support bar body 8b. Since the convex part 18 provided on the outer side corresponds to the concave part 19 provided in the insertion port 10b, the side rail 7f does not receive any restriction, and the support rods 8a and 8b are inserted into the insertion support part. It can be supported by being inserted into the nine insertion ports 10a and 10b.

  However, in an inverted state from the original orientation of the insertion support side, the illustration is omitted, but the support bar 8b provided with the convex portion 18 on a part of the outer periphery has the insertion port 10a where the concave portion 19 is not provided. Therefore, since the convex portion 18 abuts on the upper surface of the insertion port 10a and normal insertion is inhibited, the operator can recognize that the side rail 7f is reverse to the front and back sides, Thus, reverse insertion can be prevented.

  The fourth embodiment described above has also been described with respect to the side rail 7f on the footboard 6 side. However, it can of course be applied to the side rail 7h on the headboard 5 side as in the first embodiment. is there. Further, the configuration of the main body of the side rail 7f may be configured by a plate shape or a combination thereof instead of the lattice frame shape as shown in the figure.

Next, FIG. 14 shows the configuration and operation of the fifth embodiment of the reverse insertion preventing mechanism in the plug-in side rail device to which the present invention is applied. In FIG. 14, a pair of support rods 8a and 8b is shown. Only the insertion support portion 9 provided with the insertion ports 10a and 10b is schematically shown.
In the fifth embodiment, the support bar 8a has a circular outer cross-sectional shape, and the inner cross-sectional shape of the insertion port 10a is correspondingly circular, but the other side support bar 8b. In this case, the cross-sectional shape is basically a circle having the same diameter as the support rod 8a, but a part of the outer periphery is cut out in a flat shape to form the recess 20, and an insertion port corresponding to this is formed. A part of the inner circumference of 10b is projected in a planar shape in a radial direction from a position on the circumference to form a convex portion 19.

  In this configuration, when the side rail faces the original insertion support side, the support bar bodies 8a and 8b correspond to the insertion ports 10a and 10b as shown in FIG. Even if the concave portion 20 and the convex portion 19 are formed in the insertion port 10b, the support rods 8a and 8b are inserted into the insertion ports 10a and 10b of the insertion support portion 9 without any limitation. The rail can be supported.

  However, in the state where it is turned upside down from the original insertion support side, the illustration is omitted, but the support rod 8a that does not have the recess 20 corresponds to the insertion port 10b that forms the projection 19. Then, since the normal insertion of the support rod 8a into the insertion port 10b is hindered, the operator can recognize that the side rail 7f is reverse to the front and back sides, thus preventing reverse insertion. can do.

Next, FIG. 15 shows the configuration and operation of the sixth embodiment of the reverse insertion preventing mechanism in the plug-in side rail device to which the present invention is applied. In FIG. Only the insertion support part 9 provided with the rods 8a and 8b and the insertion ports 10a and 10b is schematically shown.
Compared to the fifth embodiment, the sixth embodiment is different in the shape of the concave portion 20 formed in the support rod 8b and the convex portion 19 formed in the insertion port 10b. Only the triangular cross section is used, and the others are the same. Since the operation is obvious, the description of the operation is omitted. Thus, the shape of the recessed part 20 and the convex part 19 is appropriate.

  In the fifth embodiment and the sixth embodiment described above, as described above, the support bar 8a not formed with the recess 20 is inserted into the insertion port 10b forming the protrusion 19. On the contrary, it is possible to insert the support bar 8b in which the concave portion 20 is formed into the insertion port 10a in which the convex portion 19 is not formed.

  Therefore, it is possible to use the side rail of the safer configuration for the new type bed to which the present invention is applied by inserting it into the old type bed, but use the side rail for the old type bed for the new type bed. It is impossible to provide so-called backward compatibility.

Next, FIG. 16 shows the configuration and operation of the seventh embodiment of the reverse insertion preventing mechanism in the plug-in side rail device to which the present invention is applied. In FIG. Only the insertion support part 9 provided with the rods 8a and 8b and the insertion ports 10a and 10b is schematically shown.
In the seventh embodiment, the pair of support rods 8a and 8b are configured to have different cross-sectional shapes on the outer periphery, and at that time, the insertion support portion 9 of the insertion support portion 9 corresponds to each of the support rods 8a and 8b. The cross-sectional shapes of the inner peripheries of the insertion ports 10a and 10b are configured in different shapes that are not included in each other. In other words, in this embodiment, specifically, the support bar 8b has a recess 20 formed by cutting out a part of a circular shape whose outer cross-sectional shape is larger than the outer diameter of the support bar 8a. Correspondingly, a part of the inner periphery of the insertion port 10b is projected in a planar shape in a radial direction from a position on the circumference having an inner diameter larger than the inner diameter of the insertion port 10a to form a convex portion 19. Thus, the cross-sectional shapes of the inner peripheries of the insertion ports 10a and 10b of the insertion support portion 9 are different from each other in correspondence with different cross-sectional shapes of the pair of support rods 8a and 8b. It is configured in a shape.

  In such a configuration, in the original orientation of the insertion support side, as shown in FIG. 16, each of the pair of support rods 8a and 8b is smoothly inserted into the corresponding insertion ports 10a and 10b, and the side rails are inserted. Although the illustration is omitted in a state in which it is turned upside down from the original insertion support side, both of the pair of support rods 8a and 8b are connected to the opposite insertion port 10b. , 10a, the operator can recognize that the side rail is reverse to the front and back sides, thus preventing reverse insertion.

Next, FIG. 17 shows the configuration and operation of the eighth embodiment of the reverse insertion preventing mechanism in the plug-in side rail device to which the present invention is applied. In FIG. Only the insertion support part 9 provided with the rods 8a and 8b and the insertion ports 10a and 10b is schematically shown.
In the eighth embodiment, the concave portion 20 is formed on a part of the outer periphery of the support rod 8b on one side in the same manner as the sixth embodiment, and the convex portion 22 is also formed. In 10b, corresponding to these concave portions 20 and convex portions 22, a convex portion 19 and a concave portion 21 are formed on a part of the inner periphery in the same manner as in the sixth embodiment.

  Also in the eighth embodiment, in the original orientation of the insertion support side, as shown in FIG. 17, each of the pair of support bars 8a and 8b is smoothly inserted into the corresponding insertion ports 10a and 10b. Although the side rail can be supported, but not shown in the state of being turned upside down from the original insertion support side, both of the pair of support bars 8a and 8b are inserted on the opposite side. Since it cannot be inserted into the mouths 10b and 10a, the operator can recognize that the side rail is reverse to the front and back sides, and thus can prevent reverse insertion.

  In the seventh embodiment and the eighth embodiment described above, as described above, the support rod body 8b is inserted into the insertion port 10a on the opposite side in the state of being reversed from the original insertion support side. In addition, the support bar 8a cannot be inserted into the insertion port 10b on the opposite side. Therefore, as described above, it is possible to prevent reverse insertion, as well as to prevent a decrease in safety due to the use of the old bed side rails in the new bed, and the new side rail according to the present invention, By making it possible to use it only for a new bed that is supposed to be used, the original safety can be surely exhibited.

Next, FIGS. 18 to 20 show the configuration and operation of a ninth embodiment of the reverse insertion prevention mechanism in the plug-in side rail device to which the present invention is applied.
In the ninth embodiment, as in the first embodiment, the main body of the side rail 7f is arranged so that the right end protrudes outside the right support bar 8b, but the left end is The insertion support portion 9 is provided so as to be positioned on the right side of the left support rod 8a and provided with a pair of insertion ports 10a and 10b for inserting and supporting the support rods 8a and 8b. Consists of receiving. In this way, the constituent elements corresponding to the constituent elements of the first embodiment are denoted by the same reference numerals.

  That is, in the ninth embodiment, the support bar 8a on one side is formed shorter than the support bar 8b on the other side, and the insertion port 10a corresponds to the short support bar 8b. The insertion support length is shortened by inserting the spacer 23.

  In such a configuration, when the side rail 7f faces the original insertion support side as shown in FIG. 18, the support rods 8a and 8b are inserted into the insertion ports 10a and 10b as shown in FIG. Thus, the side rail 7f can be normally supported.

  However, in an inverted state from the original orientation of the insertion support side, as shown in FIG. 20, the support rod 8 b that is not formed to have a short length is inserted into the insertion port 10 a in which the insertion support length is shortened by the spacer 23. Therefore, the support bar 8b cannot be inserted normally over the spacer 23. Therefore, the operator can recognize that the side rail 7f is reverse to the front and back sides, and thus can prevent reverse insertion.

  Although the ninth embodiment described above has been described with respect to the side rail 7f on the footboard 6 side, it can be applied to the side rail 7h on the headboard 5 side as in the first embodiment. is there. Further, the configuration of the main body of the side rail 7f may be configured by a plate shape or a combination thereof instead of the lattice frame shape as shown in the figure. The insertion port 10a may be formed shallow in advance without using the spacer 23 because the insertion support length may be shortened so as to correspond to the support bar 8a formed short.

Next, FIGS. 21 to 27 show the configuration and operation of a tenth embodiment of the reverse insertion prevention mechanism in the plug-in side rail device to which the present invention is applied.
In the tenth embodiment, as in the first embodiment, the main body of the side rail 7f is arranged so that the right end protrudes outside the right support bar 8b, but the left end is The insertion support portion 9 is provided so as to be positioned on the right side of the left support rod 8a and provided with a pair of insertion ports 10a and 10b for inserting and supporting the support rods 8a and 8b. Consists of receiving. In this way, the constituent elements corresponding to the constituent elements of the first embodiment are denoted by the same reference numerals.

  In the tenth embodiment, on the original insertion support side, the board 1 of the bed 1, that is, the first side rail 7 (7h, 7f) located on the headboard 5 or footboard 6 side is outward from one end. A guide rod 24 is projected and a hook-shaped portion 25 is formed at the tip of the guide rod 24 so as to go outside the boards 5 and 6, and a second guide rod 26 is projected outward from the other end of the side rail 7. Then, a bowl-shaped portion 27 is formed at the end portion so as to go away from the bed 1. In this embodiment, the second guide bar 26 also serves as the lower horizontal cross member 11.

  As shown in FIG. 25, in this embodiment, in order to make the side rail 7 correspond to both sides of the bed 1 on the headboard 5 side and both sides of the footboard 6 side, the protruding directions of the above-described hook-like portions 25 and 27 are provided. Two types with the reverse are configured. That is, in FIG. 25, the side rails 7 arranged on the diagonal line are configured as the same type.

  In the above configuration, in the state where each side rail 7 is directed to the original insertion support side, as shown in FIG. 26, each smoothly inserts a pair of support rods 8a and 8b. Although it can be inserted and supported in the insertion ports 10a and 10b of the support portion 9, as shown in FIG. 27, the side rail 7 is turned upside down as shown by a two-dot chain line u in the figure. If the rod-shaped portion 27 protruding from the second guide rod 26 is caught by the bottom support frame 3 when trying to insert into the corresponding insertion support portion 9, the support rod bodies 8b and 8a are inserted into the insertion port. It cannot be inserted into 10a, 10b at all.

  Furthermore, as shown by the two-dot chain lines v and w in FIG. 26, the same orientation as the original insertion support side is applied to the lower left insertion support portion 9 which is not the lower right original insertion support portion 9 in the figure. In this case, the hook-like portion 25 protruding from the first guide rod 24 and the hook-like portion 27 protruding from the second guide rod 26 are caught in the bottom support frame 3 even if they are turned over. The support rods 8a and 8b cannot be inserted into the insertion ports 10a and 10b at all.

  Therefore, this allows the operator to recognize that the side rail is on the opposite side, thus preventing the reverse insertion and supporting it at another position.

  Since the present invention is as described above, since the insertion support in a state in which the side rail is turned over from the original insertion support side is mechanically impossible, the operator is not aware of it. It can always be used on the original insertion support side. In this way, a simple mechanism can be used to prevent a gap between the side rail and the board, or between the pair of side rails that are inserted and supported side by side, which may cause the body to be caught. It is possible to provide a reverse insertion prevention mechanism for plug-in side rails that has a great industrial applicability, such as not reducing the usability of plug-in side rails. it can.

It is a perspective view which shows notionally 1st Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention. It is a side view which shows notionally 1st Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention in the state before use. It is a side view which shows notionally 1st Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention in a use condition. It is a side view which shows notionally 1st Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention in incorrect operation. It is a side view which shows the use condition in case the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention is not applied. It is a side view which shows the incorrect use condition in the case of not applying the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is a principal part side view which shows conceptually 2nd Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is a principal part side view which shows notionally 2nd Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention in a use condition. It is a principal part side view which shows notionally the 2nd Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention in the incorrect operation state. It is a principal part perspective view which shows conceptually 3rd Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is a principal part side view which shows notionally 3rd Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention in a use condition. It is a principal part perspective view which shows conceptually 4th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is principal part explanatory sectional drawing which shows the use condition in case the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention is not applied. It is principal part explanatory sectional drawing which shows the use condition in 5th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is principal part explanatory sectional drawing which shows the use condition in 6th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is principal part explanatory sectional drawing which shows the use condition in 7th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is principal part explanatory sectional drawing which shows the use condition in 8th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is a principal part side view which shows notionally 9th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is a principal part side view which shows notionally 9th Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention in a use condition. It is a principal part side view which shows notionally 9th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention in the incorrect operation state. It is a perspective view which shows the side rail of 10th Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention. It is a top view which shows the side rail of 10th Embodiment of the reverse insertion prevention mechanism in the insertion type side rail apparatus of this invention. It is a side view which shows the side rail of 10th Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention. It is a top view of the bed which applies 10th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is a top view of the bed which shows the state before applying 10th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention. It is a top view of the bed which shows 10th Embodiment of the reverse insertion prevention mechanism in the insertion-type side rail apparatus of this invention in use condition. It is a top view of the bed which shows 10th Embodiment of the reverse insertion prevention mechanism in the plug-in type siderail apparatus of this invention in a misoperation state.

Explanation of symbols

1 Bed 2 Base frame 3 Bottom support frame 4 Bottom 5 Headboard 6 Footboard 7h, 7f Side rail 8a, 8b Support rod body 9 Accessory receiver (insertion support part)
10a, 10b Insertion slot 11 Lower crosspiece member 12 Convex piece 13 Insertion opening 14 Protrusion 15 Step part 16 Protrusion piece 17, 19, 22 Convex part 18, 20, 21 Concave part 23 Spacer 24 First guide rods 25, 27 The bowl-shaped part 26 2nd guide rod

Claims (15)

A pair of support rods project from the lower side of the side rails, and an insertion support portion having a pair of insertion ports for inserting and supporting the support rods on the bed side is provided. A bed insertion-type side characterized in that a reverse insertion prevention means is provided between the support rods of the side rail and between the corresponding insertion ports in a configuration in which the cross-sectional shape of the bed is a circular shape having the same diameter. Reverse insertion prevention mechanism for rail devices. The reverse insertion prevention means is composed of a convex portion provided at a biased position between the support rods of the side rail and a receiving portion provided between the insertion ports of the insertion support portion corresponding to the convex portion. The reverse insertion prevention mechanism in the bed side rail apparatus of the bed of Claim 1 characterized by these. The reverse insertion prevention means is composed of a convex portion provided at an offset position between the insertion ports of the insertion support portion and a receiving portion provided between the support rods of the side rail corresponding to this convex portion. The reverse insertion prevention mechanism in the bed side rail apparatus of the bed of Claim 1 characterized by these. The reverse insertion preventing means includes a convex portion attached to one of the side rail support rods and a receiving portion provided outside the corresponding insertion port of the insertion support portion corresponding to the convex portion. The reverse insertion prevention mechanism in the bed side rail apparatus of the bed according to claim 1, wherein the reverse insertion prevention mechanism is configured. The reverse insertion preventing mechanism in the bed side rail device for a bed according to any one of claims 2 to 4, wherein the receiving portion is constituted by a concave portion. The reverse insertion preventing mechanism in the bed side rail device according to claim 3, wherein the receiving portion is constituted by a stepped portion. 5. The reverse insertion prevention mechanism for a bed insertion-type side rail device according to claim 4, wherein the receiving portion is constituted by a cutout portion at an end of the insertion support portion. A pair of support rods are provided on the lower side of the side rails, and an insertion support portion having a pair of insertion ports for inserting and supporting the support rods on the bed side is provided. In the configuration in which the outer peripheral cross-sectional shape is a circular shape with the same diameter, the reverse difference in the bed insertion-type side rail device, characterized in that a reverse insertion preventing means is provided at any of the support rods and the corresponding insertion port. Prevention mechanism. The reverse insertion preventing means is composed of a convex portion formed on a part of the outer periphery of the support bar and a concave portion formed on a part of the inner periphery of the insertion port corresponding to the convex portion. The reverse insertion prevention mechanism in the bed insertion-type side rail device according to claim 8. The reverse insertion preventing means includes a concave portion formed on a part of the outer periphery of the support bar, and a convex portion formed on a part of the inner periphery of the insertion port corresponding to the concave portion. The reverse insertion prevention mechanism in the plug-in side rail device of the bed according to claim 8. The reverse insertion preventing means includes a convex part and a concave part formed on a part of the outer periphery of the support bar, and a convex part and a concave part formed on a part of the inner periphery of the insertion port corresponding to the convex part and the concave part. The reverse insertion prevention mechanism in the bed insertion-type side rail device according to claim 8, comprising: 9. The bed according to claim 8, wherein the reverse insertion preventing means comprises a short support rod body formed on one side and an insertion port formed correspondingly with a short insertion support length. Reverse insertion prevention mechanism for plug-in side rail devices. The reverse insertion preventing mechanism for a bed insertion side rail device according to claim 12, wherein the insertion support length is shortened by inserting a spacer into the insertion port. In a configuration in which a pair of support rods are provided on the lower side of the side rail, and an insertion support portion having a pair of insertion ports for inserting and supporting the support rods on the bed side is provided. The rod body has a configuration in which the cross-sectional shape of the outer periphery is different, and the cross-sectional shape of each inner periphery of the insertion port of the insertion support portion corresponding to each support rod body is configured in different shapes that are not included in each other A reverse insertion prevention mechanism for a bed plug-in type side rail device. In a configuration in which a pair of support rods project from the lower side of the side rail, and an insertion support portion having a pair of insertion ports for inserting and supporting the support rods on the bed side is provided, the original insertion On the support side, a first guide rod protrudes laterally from one end of the side rail located on the board side of the bed, and a hook-shaped portion that wraps around the outside of the board is formed at the tip of the first guide rod. A bed insertion-type side rail characterized in that a second guide rod protrudes laterally outward from the other end of the rail, and a hook-shaped portion extending in a direction away from the bed is formed at the end. Reverse insertion prevention mechanism in the device.

Images