JP2012096714A - Carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrier capable of preventing flipping-up of a floor panel and improving workability when a locked state is released to flip up the floor panel.SOLUTION: The carrier 1 includes: a pair of fist frame 3 and a second frame 4 having casters 6 attached to the respective lower surface sides; a connection frame 5 for interconnecting the first and second frames 3 and 4; a second side surface panel 8 erected on the second frame 4; and a floor panel 9 rotatably connected to the second side surface panel 8. In the first frame 3, a stick body 62 is formed to extend from near one end in a longitudinal direction to near the other end of the first frame 3, and operation parts 64 are arranged at both ends of the stick body 62 in a longitudinal direction. The stick body 62 is disposed to rotate around the longitudinal central part, and displaceable to an engaging position for engagement with an engaging part 35 disposed in the floor panel 9 and a releasing position for releasing the engaged state of the engaging part 35.

Description

  The present invention relates to a transport vehicle used for transporting articles and the like.

  Conventionally, as a transport vehicle used for transporting articles, etc., a substantially rectangular floor panel having a placement surface on which articles are placed and casters provided corresponding to the vicinity of four corners of the floor panel are provided. What you have is known. In addition, the transport vehicle extends in parallel with each other, and a pair of first and second frames each having a caster attached to the lower surface thereof, and a connecting frame that connects between the first and second frames. And a first side panel and a second side panel standing above the first and second frames, and the floor panel is rotatable with respect to the second frame or the second side panel. Some are connected (see, for example, Patent Documents 1 and 2). In such a transport vehicle, an article can be placed on the upper surface of the floor panel by setting the floor panel to a use position supported by the upper surfaces of the first and second frames. In addition, since the floor panel is separated from the first frame and is in an upright position extending along the second side panel, another transport is provided in the gap between the first frame and the second frame of the transport vehicle. The first frame or the second frame of the car can be entered. Thereby, it becomes possible to store a plurality of transport vehicles in a compact manner.

  In addition, the transport vehicle generally includes a lock mechanism for preventing inadvertent jumping of the floor panel in the use position. For example, Patent Document 1 discloses a technique of providing a lock member that is slidable along the longitudinal direction of the first frame on one end side in the longitudinal direction of the first frame in the floor panel. In this case, when the floor panel is tilted to the use position, the tip of the lock member is inserted into the lock hole formed in the support frame, and the floor panel is prevented from jumping up. Further, by pulling a portion protruding from the side surface of the floor panel of the lock member inserted through the lock hole, the lock member comes out of the lock hole, and the floor panel can be flipped up.

  Furthermore, in Patent Document 2, an operation bar is provided that extends along the longitudinal direction of the first frame with respect to the floor panel and is rotatable with the longitudinal direction of the first frame as the axial direction. A technique is disclosed in which the locking claws are connected. When the floor panel is tilted to the use position, the locking claws are locked to the periphery of the locking holes formed in the support frame corresponding to the locking portions, and the floor panel is prevented from jumping up. In addition, an operation opening is formed on the upper surface of the floor panel at the use position to enable operation to the bent portion formed at the center in the longitudinal direction of the operation rod, and the bent portion of the operation rod is formed through the operation opening. By rotating the operating rod by operating the, the locked state between the locking claw and the locking hole periphery is released, and the floor panel can be flipped up.

Japanese Patent Laid-Open No. 9-11906 Japanese Patent Laid-Open No. 2004-196042

  However, in the technique described in the cited document 1, the lock member is provided only on one end side in the longitudinal direction of the first frame. For this reason, if the operator who wants to flip up the floor panel is located on the other end side in the longitudinal direction of the first frame, the locked state of the lock member cannot be released and the floor panel cannot be flipped up. In this case, it may be necessary to rotate the transport vehicle or the operator himself / herself turns around to the opposite side of the transport vehicle, which may cause a decrease in workability.

  Moreover, in the technique described in Patent Document 2, two floor panels are provided in one transport vehicle, and a lock mechanism such as an operating rod is provided for each floor panel. Therefore, in order to jump up both floor panels to the standing position, the operation rods of the floor panels must be operated individually, which may cause a reduction in workability.

  The present invention has been made to solve the above-described problems, and its object is to improve workability when lifting the floor panel by releasing the lock state in a transport vehicle capable of preventing the floor panel from jumping up. It is in providing the conveyance vehicle which can aim at improvement of.

  In the following, each means suitable for solving the above-mentioned purpose will be described in terms of items. In addition, the effect etc. peculiar to a corresponding means are added as needed.

Means 1. A pair of first and second frames that extend in parallel to each other and each has a caster attached to the lower surface thereof;
A connecting frame connecting the first frame and the second frame;
A standing body erected upward from the second frame;
A use position that is pivotally connected to the standing body or the second frame via a hinge member, and is supported by the upper surfaces of the first frame and the second frame so that an article can be placed thereon; A floor panel displaceable from the first frame to a standing position extending along the upright body apart from the first frame;
A transporting vehicle provided with locking means for restricting displacement of the floor panel to the standing position side when the floor panel is in the use position;
The locking means is
A housing that is provided on either one of the first frame or the portion of the floor panel that faces the first frame, and has a substantially rod shape;
Engagement means provided on the other side of the first frame or the portion of the floor panel facing the first frame, and engageable with the housing when the floor panel is in the use position; With
The casing extends from the vicinity of one end in the longitudinal direction of the first frame to the vicinity of the other end, and the engagement position is engaged with the engagement means in a state where the floor panel is in the use position. , And is configured to be displaceable to a release position where the engagement state with the engagement means is released,
Biasing means for biasing the housing toward the engagement position;
A pair of operation means that are provided so as to be able to be operated by an operator, corresponding to both longitudinal ends of the casing, and interlocked with the casing,
A shaft support means for supporting an intermediate position in the longitudinal direction of the housing,
In any of the operations of the pair of operation means, the casing can be displaced to the release position by rotating in a fixed direction around the shaft support means. Carrying vehicle.

  According to the means 1, the first frame or the floor panel has a pair of operations so as to correspond to both ends in the longitudinal direction of the casing extending from the vicinity of one end in the longitudinal direction of the first frame to the vicinity of the other end. Means are provided, and if either one of the operation means is operated, the housing can be displaced to the unwinding position. Therefore, regardless of whether the worker who wants to raise the floor panel to the standing position is located on one end side or the other end side in the longitudinal direction of the first frame, one operation means can reach the operator's hand. Since it is in the position, for example, the workability can be improved as compared with the case where the operating means is only on one end side of the first frame.

  The casing is a relatively long one extending from the vicinity of one end in the longitudinal direction of the first frame to the vicinity of the other end. The intermediate position in the longitudinal direction is supported by the shaft support means and rotated. By doing so, it is configured to be displaced to the unwinding position. For this reason, the whole housing can be displaced to the unwinding position with a relatively small force. Therefore, for example, the operability of the operating means can be improved as compared with a configuration in which a long casing is slid without changing its longitudinal direction.

  In addition, since the housing extends from the vicinity of one end portion in the longitudinal direction of the first frame to the vicinity of the other end portion, the engaging means can be provided in the vicinity of one end portion in the longitudinal direction of the first frame and in the vicinity of the other end portion. it can. Thus, the pair of engaging means can be arranged in a well-balanced manner so that the engaged state with the casing is stable, and the engagement with the engaging means can be achieved without rotating the casing at the engaging position so much. The combined state can be released. Therefore, for example, as in the case where the housing and the engaging means are provided only on one end side in the longitudinal direction of the first frame, the floor panel is easily lifted on the other end side, and the floor panel vibrates during transportation of the transport vehicle. Or abnormal noise due to vibrations can be prevented.

  Mean 2. The means, the biasing means, the operating means, and the pivot support means are provided in the first frame, and the engaging means is provided in the floor panel. Transport vehicle.

  According to the means 2, since the first frame is provided with the casing, the urging means, the operating means, and the pivot support means, the degree of freedom in designing the floor panel is improved as compared with the case where these are provided on the floor panel. be able to. In addition, when providing a frame or the like on the floor panel, the floor panel rotation workability is reduced due to an increase in weight, or the vertical direction of the frame or the like changes with the rotation of the floor panel. There is a risk of various problems such as relatively difficult positioning of the housing. In contrast, by providing the first frame with the housing, the biasing means, the operating means, and the shaft supporting means, it is possible to eliminate these problems and improve the rotating workability and durability of the floor panel. be able to.

  Means 3. The operation means is configured to be operable from the outer peripheral surface side of the first frame or the floor panel, and is provided on the inner peripheral side from the outer peripheral surface of the first frame or the floor panel. The transport vehicle according to means 1 or 2.

  According to the means 3, the operation means is located on the inner peripheral side with respect to the outer peripheral surface of the first frame or the floor panel. For this reason, it is possible to avoid problems such as the operation means being caught by an operator or various existing facilities when the transport vehicle is moved, or an extra storage space for the transport vehicle. Further, the operation means can be operated from the outer peripheral surface side of the first frame or the floor panel. For this reason, when performing the work of standing the floor panel, it is possible to avoid a situation in which the operator's hand operating the operating means is positioned on the upper surface side of the floor panel, and to improve workability. Can do.

It is a perspective view of a conveyance vehicle. It is a perspective view of a conveyance vehicle. It is a perspective view of a conveyance vehicle. It is an expansion partial perspective view of a conveyance vehicle. It is a perspective view which shows a lower frame, a locking member, etc. It is a perspective view of an upper frame. It is a top view including the partial cross section which shows the internal structure of a 1st flame | frame. It is a top view including the partial cross section which shows the internal structure of a 1st flame | frame. It is a perspective view containing partial cross sections, such as a 1st frame. It is a perspective view containing partial cross sections, such as a 1st frame. It is a perspective view containing partial cross sections, such as a 1st frame. It is a perspective view containing partial cross sections, such as a 1st frame. It is a perspective view which shows the nesting conveyance vehicle. It is a perspective view of a conveyance vehicle.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIGS. 1 to 3, the transport vehicle 1 extends in parallel with each other, and a pair of first frames 3 and second frames 4 to which a pair of casters 6 are attached on the lower surface side. And a support frame 2 including a connecting frame 5 that connects both the frames 3 and 4. In addition, the first side panel 7 and the first side panel 7 as the standing body that is erected upward from the first and second frames 3 and 4 along the outer long sides of the first frame 3 and the second frame 4, respectively. Two side panels 8 are provided. Furthermore, it is connected to the second side panel 8 via a hinge member 11 so as to be rotatable, and is used to be supported on the upper surfaces of the first frame 3 and the second frame 4, and away from the first frame 3. A floor panel 9 that is displaceable to an upright position extending along the second side panel 8 is provided.

  The support frame 2 is made of metal, and as shown in FIGS. 2, 3, etc., the longitudinal center portion of the upper surface of the first frame 3 and the second frame 4 and both longitudinal end portions of the lower surface of the connecting frame 5 By welding and joining, it has a substantially H shape in plan view. In addition, the first and second frames 3 and 4 are formed with a rectangular tube-shaped first side plate connecting portion 12 and second side plate connecting portion 13 projecting upward at the center portion in the longitudinal direction and at one end portion in the longitudinal direction. ing. Further, the second side plate connecting portion 13 of the first frame 3 and the second side plate connecting portion 13 of the second frame 4 are formed at point-symmetric positions with the center portion of the connecting frame 5 as the center. The first and second frames 3 and 4 have side plate connection holes 14 penetrating vertically so as to be continuous with the inner peripheral surface of each first side plate connection portion 12 (FIGS. 5 and 6). The bottom surface of the first and second frames 3 and 4 has a bottomed cylindrical shape protruding downward from the peripheral edge of the side plate connection hole 14, and is lower than the bottom surfaces of the first and second frames 3 and 4. A plate receiving portion 15 capable of supporting the first and second side panels 7 and 8 is provided at the lower position.

  In addition, as shown in FIG. 2 and the like, a substantially cylindrical fork insertion portion 16 penetrating in the short direction of the first and second frames 3 and 4 is formed on the lower surface side of the first and second frames 3 and 4. And the transport vehicle 1 can be lifted and transported by a forklift (not shown). Furthermore, resin (or rubber) corner covers 17 are provided at the four corners of the support frame 2 to protect the corner portions.

  The first and second side panels 7 and 8 include a frame body 21 having a rectangular frame shape that is long in the vertical direction, and a column body 22 that connects between the upper and lower sides of the frame body 21, and these are metal. Are integrally formed. The frame body 21 has a lateral width substantially the same as the width in the longitudinal direction of the first and second frames 3 and 4.

  Further, the first and second side panels 7 and 8 are formed so as to extend the column body 22 downward, and the first connection protrusion 23 inserted into the first side plate connection portion 12, A second connection protrusion 24 that protrudes downward from the lower side of the frame body 21 on one side of the second side panels 7 and 8 and is fitted into the second side plate connection part 13 is formed. Then, the first and second connection projections 23 and 24 of the first side panel 7 are fitted into the first and second side plate connection parts 12 and 13 of the first frame 3 so that the first side panel 7 is the first. The second side panel is connected to the frame 3 and the first and second connection projections 23 and 24 of the second side panel 8 are fitted into the first and second side plate connection parts 12 and 13 of the second frame 4. 8 is connected to the second frame 4.

  In the present embodiment, the lower surfaces of the first and second side panels 7 and 8 erected on the first and second frames 3 and 4 are located above the upper surface of the connection frame 5. The first connection protrusion 23 is thicker and longer than the second connection protrusion 24, and is inserted into the first side plate connection portion 12, so that the side plate formed on the first or second frame 3, 4. The first or second frame 3, 4 passes through the connection hole 14 and is in contact with and supported by the bottom surface of the plate receiving portion 15. Further, the second side plate connecting portion 13 and the second connecting projection 24 can be omitted, but by providing these, it is possible to suppress rattling or deformation of the first and second side panels 7 and 8. Is planned.

  Furthermore, the first and second side panels 7, 8 are provided with a handle 25 that horizontally connects the intermediate position between the column body 22 and the frame body 21. The transport vehicle 1 can be transported by placing a hand on. In addition, a connection reinforcing member 26 that connects the central portions of the upper sides of the first and second side panels 7 and 8 is mounted, thereby suppressing the backlash and the like of the side panels 7 and 8. It has been.

  As shown in FIGS. 3 and 4, the columnar body 22 of the second side panel 8 can be relatively displaced by a hook-shaped locking piece 27 that can lock the upper side of the floor panel 9 in an upright state. Is provided. By locking the floor panel 9 with the locking piece 27, the floor panel 9 can be held in the standing position. In the present embodiment, the hinge member 11 is connected to the lower portion of the frame body 21 of the second side panel 8.

  In addition, as shown in FIG. 14, a locking hole 30 capable of locking the locking portion 29 of the plate member 28 configured as a separate body is formed in the side portion of the frame body 21 and the column body 22. ing. The plate member 28 has an area that is half that of the floor panel 9 described later, and is appropriately locked to the side panels 7, 8, so that the shelves and the side portions of the side panels 7, 8 in the transport vehicle 1 are disposed. Side walls and partitions can be formed, and the unused plate member 28 can be hung on the outer surface side of the side panels 7 and 8. Further, the side panels 7 and 8 are provided with a protection plate 31 that closes an opening surrounded by the frame body 21 and the column body 22. However, a gap through which the operator's finger can be inserted is formed between the protection plate 31 and the handle 25.

  As shown in FIG. 1, FIG. 3, etc., the floor panel 9 has a rectangular plate shape in which the direction spanning the first frame 3 and the second frame 4 is the longitudinal direction, and is formed of polypropylene. The width in the longitudinal direction of the floor panel 9 is slightly shorter than the distance between the first side panel 7 and the second side panel 8, and the width in the short direction is the longitudinal direction of the first and second frames 3 and 4. It is almost the same as the length of. In addition, the floor panel 9 extends in the horizontal direction by being in the use position, and an article can be placed on the upper surface thereof. On the other hand, the floor panel 9 extends in a substantially vertical direction by being in the standing position, and is in a state of being substantially in contact with the inner surface of the second side panel 8.

  Further, as shown in FIGS. 3 and 4, an insertion recess 33 into which the connecting frame 5 can be inserted is formed on the lower surface of the floor panel 9. By setting the floor panel 9 to the use position, the connecting frame 5 is inserted inside the insertion recess 33, whereby the floor panel 9 is positioned in the short direction, the lower surface of the floor panel 9, and the first The upper surfaces of the second frames 3 and 4 can be brought into contact with each other. In addition, as shown in FIG. 3, a hinge connecting portion 34 to which the hinge member 11 is connected is provided on the lower surface of the floor panel 9. The hinge connecting portion 34 is formed in a concave shape so that the hinge member 11 does not contact the second frame 4 when the floor panel 9 is in the use position.

  Further, when the floor panel 9 is in the standing position, the floor panel 9 is located above the lower surface of the second side panel 8, and the lower end portion of the hinge member 11 is also the lower surface of the second side panel 8. The height is almost the same. Further, the lower surfaces of the first and second side panels 7 and 8 erected on the first and second frames 3 and 4 are located above the upper surface of the connection frame 5, and the second side plate connecting portion. 13 is provided only on one end side of the first and second frames 3 and 4. For this reason, by setting the floor panel 9 to the standing position, the floor panel 9 and the second side panel 8 and the second frame 4 that are in the standing position are located between the first side panel 7 and the first frame 3. The connecting frame 5 of another transport vehicle 1 can be inserted into the gap formed therebetween from the end side of the first and second frames 3 and 4 where the second side plate connecting portion 13 is not formed. It can be done. For this reason, when the transport vehicle 1 is not used, the inner surfaces of the first and second frames 3 and 4 of the predetermined transport vehicle 1 and the first and second frames 3 and 4 of another transport vehicle 1 are removed. A plurality of transport vehicles 1 can be stored in a compact manner so that the side surfaces face each other (the side surfaces of the connecting frame 5 are in contact with each other), and the space required to store the transport vehicles 1 is minimized. can do. In particular, in the present embodiment, the second side plate connecting portion 13 of the first frame 3 and the second side plate connecting portion 13 of the second frame 4 are provided at point-symmetric positions with the central portion of the connecting frame 5 as the center. Therefore, as shown in FIG. 13, the plurality of transport vehicles 1 can be stored in the same direction and more compactly.

  Now, as shown in FIG. 4, on the lower surface of the mounting portion 10, which is a portion of the floor panel 9 that faces the first frame 3 (positioned above the first frame 3) in the use position. The metal engagement parts 35 are attached in pairs. The pair of engaging parts 35 are provided in the vicinity of both ends in the longitudinal direction of the open side portion 9b (mounting portion 10) so as to be symmetrical with respect to the insertion recess 33. Each engagement part 35 includes a fixing portion 36 that is screwed and fixed to the lower surface of the floor panel 9, a support portion 37 that extends in a direction orthogonal to the substantially center of the fixing portion 36, and a tip of the support portion 37. And a locking claw 38 protruding in a direction perpendicular to the portion. One engagement part 35 (in FIG. 4, the engagement part 35 on the left rear side of the drawing) is also connected to the hinge member 11 of the floor panel 9 by the locking claw 38. The other engagement part 35 (the engagement part 35 on the right front side in FIG. 4) is attached so as to protrude toward the open side 9b (upward in FIG. 4) opposite to the connected side 9a. Hereinafter, the second engaging part 35b) is attached so that the locking claw 38 protrudes toward the connecting side portion 9a (downward in FIG. 4). In the present embodiment, the pair of engaging parts 35 constitute an engaging means.

  As shown in FIGS. 5, 6, 11, etc., the first frame 3 has a box-like lower frame 41 (FIG. 5) that opens upward, and a box-like opening that opens downward. And an upper frame 45 (FIG. 6). The lower frame 41 includes a substantially rectangular plate-shaped lower base portion 42 and a lower peripheral wall portion 43 that extends upward from the outer peripheral edge of the lower base portion 42. The upper frame 45 includes a substantially rectangular upper base portion 46 and an upper peripheral wall portion 47 extending downward from the outer peripheral edge of the upper base portion 46. The upper frame 45 is slightly larger than the lower frame 41, and when the lower frame 41 and the upper frame 45 are assembled, the outer peripheral surface of the lower peripheral wall portion 43 and the inner peripheral surface of the upper peripheral wall portion 47 are in contact with each other. The upper edge portion of the lower peripheral wall portion 43 and the lower surface of the upper base portion 46 are brought into contact with each other, and the lower edge portion of the upper peripheral wall portion 47 and the lower surface of the lower base portion 42 are substantially flush with each other ( Refer to FIG. In addition, the lower base portion 42 is formed with caster mounting holes 49 for mounting the casters 6 in the vicinity of both ends in the longitudinal direction. 5, illustration of the fork insertion portion 16 welded to the lower frame 41 is omitted, and illustration of the corner cover 17 attached to the upper frame 45 is omitted in FIG. 6.

  Hereinafter, for convenience of explanation, a portion of the lower peripheral wall portion 43 of the lower frame 41 that extends from the opposed long side portion of the lower base portion 42 is referred to as a long side wall portion 51 and the opposed short side of the lower base portion 42. A portion extending from the portion is referred to as a short side wall portion 52. In particular, the long side wall part 51 (the long side wall part 51 on the right front side in FIG. 5) located on the inner peripheral side of the support frame 2 is referred to as a first long side wall part 51a, and the other long side wall part 51 is This is referred to as a second long side wall 51b. Further, of the pair of short side wall portions 52, the short side wall portion 52 on the side where the connecting frame 5 of another transport vehicle 1 can be inserted between the first side surface panel 7 (in FIG. The short side wall 52) is referred to as a first short side wall 52a, and the other short side wall 52 is referred to as a second short side wall 52b.

  Inside the lower frame 41, it is configured as a straight rod-like body, and extends from the vicinity of one end (first short side wall 52a) in the longitudinal direction of the lower frame 41 to the vicinity of the other end (second short side wall 52b). A lock member 61 is provided, which includes a housing 62 to be provided, a shaft portion 63 provided at a longitudinal center portion of the housing 62, and operating portions 64 as operating means respectively provided at both longitudinal ends of the housing 62. Has been. In addition, although the housing 62 of the present embodiment has a substantially circular cross section, the cross sectional shape is not particularly limited, and may be configured to have a substantially rectangular cross section, for example.

  Further, the first frame 3 includes a guide rail that extends along the short direction of the first frame 3 and positions the housing 62 in the vertical direction. The guide rails of the present embodiment are provided in total of five, and are formed in the vicinity of the central guide rail 55 formed in the longitudinal center of the first frame 3 and the short sides of the first frame 3. A pair of side guide rails 56 and a pair of intermediate guide rails 57 formed between the central guide rail 55 and each side guide rail 56 exist. Furthermore, each guide rail 55, 56, 57 includes a lower guide portion 58 protruding upward from the lower base portion 42 along the short direction of the lower frame 41, and an upper base portion along the short direction of the upper frame 45. The upper guide portion 59 protrudes downward from 46. In addition, a gap slightly wider than the vertical width of the housing 62 is formed between the upper and lower guide portions 58 and the upper guide portion 59.

  The casing 62 is installed so as to straddle all the guide rails 55, 56, and 57, so that the casing 62 is supported at a position separated from the lower base portion 42 and the upper base portion 46. In this embodiment, each guide rail 55, 56, 57 is a set of a lower guide portion 58 and an upper guide portion 59. When the lower frame 41 and the upper frame 45 are assembled, the lower guide portion 58 is assembled. The upper guide portion 59 and the upper guide portion 59 are opposed to each other, but are not necessarily arranged to face each other.

  The upper frame 45 is formed with a locking opening 71 that exposes the casing 62 upward at an intermediate portion between each side guide rail 56 and each intermediate guide rail 57 (see FIGS. 2 and 6). As shown in FIG. 11, when the floor panel 9 is in the use position, the support portions 37 of the pair of engagement parts 35 provided on the floor panel 9 are respectively inserted into the locking openings 71, and The pawl 38 is locked to the lower surface side of the housing 62. As a result, the displacement of the floor panel 9 in the use position toward the standing position is restricted.

  The extension length of the lower guide portion 58 from the lower base portion 42 is longer than the vertical width of the locking claw 38 of the engaging part 35. As a result, even if no opening is formed in the lower base portion 42, the locking claw 38 can be inserted into the lower portion of the casing 62 and locked to the lower surface side of the casing 62.

  As shown in FIGS. 5, 9, etc., the shaft portion 63 has a columnar shape extending in the vertical direction, and is connected to the surface of the housing 62 on the first long side wall portion 51 a side in the longitudinal center portion. Has been. Further, the shaft portion 63 protrudes below the housing 62.

  In addition, the lower frame 41 includes a boss 72 formed with a boss hole that opens upward in which the shaft portion 63 of the lock member 61 can be inserted, at an intermediate position in the longitudinal direction of the central guide rail 55. As shown in FIGS. 9 and 10, the shaft portion 63 of the lock member 61 is inserted into the boss 72, so that the lock member 61 (the housing 62) extends in the longitudinal direction of the housing 62 around the shaft portion 63. It is configured to be capable of rotational displacement with the up-down direction, which is a direction perpendicular to the vertical direction, as the axial direction. In the present embodiment, the shaft portion 63 and the boss 72 that pivotally support an intermediate position in the longitudinal direction of the casing 62 constitute the pivot support means.

  Furthermore, since the lock member 61 is configured to be rotatable about the shaft portion 63, the housing 62 and the engaging part 35 are engaged with the housing 62 in a state where the floor panel 9 is in the use position ( The engaging position (see FIG. 7 and FIG. 11) where the locking claw 38 is locked to the housing 62, and the housing 62 is disengaged from the track of the engaging part 35 when the floor panel 9 is rotated. It is configured to be displaceable to a release position (see FIGS. 8 and 12) where the engagement state with the engagement part 35 is released. In the present embodiment, when the longitudinal direction of the casing 62 and the longitudinal direction of the first frame 3 extend in parallel, the engaging part 35 and the casing 62 are engaged (the casing 62 becomes the engaging position). )

  As shown in FIGS. 4 and 7, of the pair of engaging parts 35, the first engaging part that is engaged with a portion closer to the first short side wall 52 a than the longitudinal center of the housing 62. 35a, the locking claw 38 protrudes from the support portion 37 to the open side 9b side (second long side wall portion 51b side), and in the engaged state with the housing 62, the support portion 37 is the housing 62. 1st long side wall part 51a side. On the other hand, in the second engagement part 35b that is engaged with the portion on the second short side wall portion 52b side with respect to the longitudinal center portion of the casing 62, the locking claw 38 is connected to the connecting side portion 9a side from the support portion 37 (first side). 1 side long side wall part 51 a side), and in the engaged state with the casing 62, the support part 37 is located on the second long side wall part 51 b side of the casing 62. For this reason, as shown in FIG. 8, the housing 62 in the engaged position has an end portion on the first short side wall portion 52a side close to the second long side wall portion 51b with the shaft portion 63 as the center, The end portion on the second short side wall portion 52b side is configured to be rotatable in a direction close to the first long side wall portion 51a. Then, the housing 62 is rotated and displaced until it comes to a position (release position) that is disengaged from the upper position of the locking claw 38 (on the track of the locking claw 38), and then the floor panel 9 is lifted, thereby It can be displaced to the standing position.

  As shown in FIGS. 5, 7, 9, and the like, each operation unit 64 includes a substantially rectangular plate-like slide plate 66 having a substantially central portion connected to an end of the housing 62, and a housing of the slide plate 66. There is provided a finger hook portion 67 protruding from the outer surface opposite to the surface to which 62 is connected.

  Further, as shown in FIG. 9 and the like, the operation part 64 is exposed to the outer peripheral side of the lower frame 41 on the lower peripheral wall part 43 (short side wall part 52) of the lower frame 41 and the upper peripheral wall part 47 of the upper frame 45, An operation opening 73 that allows operation from the outer peripheral surface side of the lower frame 41 to the operation unit 64 is formed.

  By operating the operation unit 64 through the operation opening 73, the lock member 61 (the casing 62) can be rotationally displaced about the shaft portion 63. Further, when the casing 62 is rotated, the lower side portion and the upper side portion of the slide plate 66 are substantially in sliding contact with the upper surface of the lower base portion 42 and the lower surface of the upper base portion 46. This prevents a situation in which a force that rotates the longitudinal direction of the casing 62 as the axial direction is applied to the casing 62. In addition, each operation portion 64 is arranged on the short side portion side of the first frame 3 with respect to the corresponding side guide rail 56, but in this embodiment, the housing 62 is also in the engaged position. The operation portion 64 is configured to be located on the inner peripheral side with respect to the upper peripheral wall portion 47 of the upper frame 45. Thereby, the operation unit 64 is configured not to protrude outward from the outer peripheral surface of the first frame 3.

  Further, the upper frame 45 extends from the end edge of each operation opening 73 toward the inner peripheral side of the upper peripheral wall portion 47 on the side in the moving direction of each operation portion 64 when the casing 62 is displaced to the unwinding position. A formed stopper portion 74 is formed. When the housing 62 is displaced to the unwinding position, the slide plate 66 of the operation portion 64 comes into contact with the stopper portion 74, and further rotational displacement of the housing 62 is restricted (see FIGS. 8 and 10). . The lower frame 41 is provided with a stopper reinforcing portion 75 extending from the edge of the operation opening 73 so as to be able to come into surface contact with the back surface side of the stopper portion 74.

  Further, as shown in FIGS. 6 and 9, the upper guide portion 59 of each side guide rail 56 has a reverse rotation prevention convex portion projecting downward from a portion opposite to the stopper portion 74 with the housing 62 interposed therebetween. 77 is formed. That is, even if the casing 62 in the engagement position is rotated to the opposite side to the unwinding position, the casing 62 abuts against the reverse rotation preventing convex portion 77 and the rotation in that direction is restricted. It becomes.

  Further, a coil spring 69 is provided on the inner peripheral side of the lower frame 41 as an urging means for urging the housing 62 toward the engagement position at a portion between each intermediate guide rail 57 and the central guide rail 55. It has been. Of the pair of coil springs 69, the coil spring 69 on the first short side wall portion 52 a side (the right side coil spring 69 in FIG. 7) is the surface on the first long side wall portion 51 a side of the housing 62 and the first long side. It is provided over the inner surface of the side wall 51a. On the other hand, of the pair of coil springs 69, the coil spring 69 on the second short side wall portion 52b side (the left side coil spring 69 in FIG. 7) has a surface on the second long side side wall portion 51b side of the housing 62 and a second side. It is provided over the inner side surface of the long side wall portion 51b. In the present embodiment, each coil spring 69 has its end portions locked by spring locking portions (not shown) provided on the casing 62 and the lower peripheral wall portion 43 (long side wall portion 51), so that both end portions Is fixed to the housing 62 and the lower peripheral wall 43, but it is also possible to fix both ends of the coil spring 69 by other methods (welding or the like).

  In addition, the coil spring 69 of the present embodiment is normally in a state of a displacement amount “0” that is not expanded and contracted. In this state, the longitudinal direction of the housing 62 is the same as the longitudinal direction of the first frame 3. The engaging position extends in parallel. On the other hand, when the operation unit 64 is operated to release the engagement state between the housing 62 and the engagement part 35 and the housing 62 is rotationally displaced to the release position, both coil springs 69 are extended. Thus, when the operation state on the operation portion 64 is released, the casing 62 is displaced to the engagement position by the biasing force of the coil spring 69.

  Further, the locking claw 38 of the engaging part 35 has a tapered shape that gradually tapers toward the distal end side in the protruding direction from the support portion 37, and the locking surface (upper surface) locked to the housing 62. Is extended so as to be orthogonal to the support portion 37, but the surface (lower surface) opposite to the locking surface is an inclined surface extending obliquely with respect to the locking surface. . For this reason, when the floor panel 9 in the standing position is tilted toward the use position, the lower surface of the locking claw 38 of the engaging part 35 and the upper surface of the housing 62 come into contact with each other. By tilting the floor panel 9, as shown in FIG. 12, the housing 62 is guided to the distal end side of the locking claw 38, that is, the release position side by the lower surface of the locking claw 38, and resists the biasing force of the coil spring 69. Thus, it will be displaced to the unwinding position. Thereafter, when the locking claw 38 is displaced below the casing 62, the casing 62 returns to the engagement position by the biasing force of the coil spring 69, and the engaging part 35 and the casing 62 are engaged, as shown in FIG. To do. That is, when the floor panel 9 in the upright position is displaced to the use position, the engaging part 35 and the casing 62 are engaged with each other without locking the operation unit 64 by simply tilting the floor panel 9 (locked). State).

  Further, when the floor panel 9 is in the use position, the engaging part 35 and the casing 62 are in the engaged state. Therefore, when the floor panel 9 is displaced to the standing position, the operation unit 64 is moved. An upward force is applied to the floor panel 9 after operating to displace the housing 62 to the unwinding position. In this embodiment, when either operation of the pair of operation units 64 is performed, the casing 62 is displaced to the release position by rotating in a certain direction around the shaft unit 63. In the present embodiment, the engagement means 35, the lock member 61, and the coil spring 69 constitute a lock means.

  As described above in detail, according to the present embodiment, a pair of operation portions 64 are provided at both longitudinal ends of the casing 62 extending from the vicinity of one end portion in the longitudinal direction of the first frame 3 to the vicinity of the other end portion. If either one of the operation parts 64 is operated, the housing 62 can be displaced to the unwinding position. Therefore, regardless of whether the operator who wants to flip up the floor panel 9 to the standing position is located on one end side or the other end side in the longitudinal direction of the first frame 3, either one of the operation portions 64 is operated. Therefore, the workability can be improved as compared with the case where the operation unit 64 is only on the one end side of the first frame 3, for example.

  The casing 62 has a relatively long shape extending from the vicinity of one end portion in the longitudinal direction of the first frame 3 to the vicinity of the other end portion, and the central portion in the longitudinal direction is the shaft portion 63 (and the boss 72). ) Is displaced to the unwinding position by being rotationally displaced. For this reason, the entire housing 62 can be displaced to the unwinding position with a relatively small force. Therefore, for example, the operability of the operation unit 64 can be improved compared to a configuration in which a long casing is slid without changing its longitudinal direction.

  In addition, since the housing 62 extends from the vicinity of one end portion in the longitudinal direction of the first frame 3 to the vicinity of the other end portion, the engaging part 35 is disposed in the vicinity of one end portion in the longitudinal direction of the first frame 3 and in the vicinity of the other end portion. Can be provided. As a result, the pair of engagement parts 35 can be arranged in a well-balanced manner so that the engagement state with the housing 62 is stable, and the engagement can be achieved without rotating the housing 62 at the engagement position so much. It can be set as the structure which can cancel | release the engagement state with the parts 35. FIG. Therefore, for example, the floor panel 9 is likely to float on the other end side as in the case where the casing 62 and the engaging part 35 exist only on one end side in the longitudinal direction of the first frame 3. It is possible to prevent a situation in which the panel 9 vibrates or abnormal noise occurs due to the vibration.

  In addition, since the first frame 3 is provided with the lock member 61 including the casing 62, the operation portion 64, and the shaft portion 63, and the coil spring 69, the floor panel 9 can be compared with the case where they are provided on the floor panel 9. The degree of freedom of design 9 can be improved. Further, when the lock member 61 and the coil spring 69 are provided on the floor panel 9, the rotating workability of the floor panel 9 is reduced due to the increase in weight, or the casing 62 and the like are accompanied by the rotation of the floor panel 9. Since the vertical direction and the like also change, there is a risk of causing various problems such as relatively difficult positioning of the housing 62 and the like. On the other hand, by providing the first frame 3 with the lock member 61 and the coil spring 69, these problems can be eliminated, and the rotating workability and durability of the floor panel 9 can be improved.

  Further, the pair of operation portions 64 provided on the lock member 61 are located on the inner peripheral side with respect to the outer peripheral surface of the first frame 3. For this reason, it is possible to avoid problems such as the operation unit 64 being caught by an operator or various existing facilities when the transport vehicle 1 is moved, or an extra storage space for the transport vehicle 1 being required. .

  Further, the operation unit 64 can be operated from the outer peripheral surface side of the first frame 3. For this reason, when performing the operation | work which stands up the floor panel 9, the situation where the operator's hand which operates the operation part 64 will be located in the upper surface side of the floor panel 9 can be avoided, and workability | operativity is improved. Can be achieved.

  In addition, a stopper portion 74 is provided in the first frame 3 (upper frame 45), and the amount of operation of the operation portion 64 when the casing 62 is displaced to the unwinding position is limited. Thereby, the situation that the housing 62 rotates more than necessary can be prevented, and the durability of the coil spring 69 can be improved.

  The first frame 3 is provided with guide rails 55, 56, and 57 that support the housing 62 at positions spaced from the lower base portion 42 and the upper base portion 46. Thereby, the contact area of the 1st flame | frame 3 and the housing 62 can be reduced, and the slidability at the time of rotation of the housing 62 can be improved. Further, since the housing 62 can be installed at a position separated from the lower base portion 42 and the upper base portion 46, a coil spring 69 having a diameter larger than the vertical width of the housing 62 is accurately placed on the inside of the lower frame 41 with respect to the housing 62. It can be suitably installed so that an urging force is applied. In addition, the guide rail is not only provided in the longitudinal center of the first frame 3 and in the vicinity of both ends in the longitudinal direction, but also between the central guide rail 55 and the side guide rail 56 and in the use position. An intermediate guide rail 57 is provided at a position opposite to the side guide rail 56 with the nine engagement parts 35 interposed therebetween. Therefore, the housing 62 that receives the pressing force from the engagement part 35 when the floor panel 9 is set to the use position can be suitably supported by the side guide rail 56 and the lower guide portion 58 of the intermediate guide rail 57. When the upward force is applied to the floor panel 9 in the use position without the operation unit 64 being operated, the upper guide portion 59 of the side guide rail 56 and the intermediate guide rail 57 is preferably used for the casing 62. Can be supported. Further, since the insertion recess 33 into which the connecting frame 5 is inserted is formed on the lower surface of the floor panel 9, the floor panel 9 is positioned in the short direction when the floor panel 9 is used. The engaging part 35 can be surely and smoothly inserted into the locking opening 71.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the lock member 61 and the coil spring 69 are provided on the first frame 3 side, and the engaging part 35 is provided on the floor panel 9 side. The joint part 35 may be protruded, and the lock member 61 and the coil spring 69 may be provided on the floor panel 9. However, from the viewpoint of the degree of freedom in the design of the floor panel 9, the rotational operability of the floor panel 9, the durability of the lock member 61 and the coil spring 69, etc., the lock member 61 and the coil spring 69 are provided on the first frame 3 side. It is desirable to provide it.

  Further, the number and arrangement of the engaging parts 35 are not particularly limited, but the engagement part 35 is configured to release the engagement state between the engaging parts 35 and the casing 62 by rotating the casing 62. It is desirable that the part 35 is engaged as much as possible in the vicinity of both ends in the longitudinal direction of the housing 62, and the engaging part 35 corresponds to the vicinity of both ends in the longitudinal direction of the housing 62 in order to stabilize the engagement state. It is desirable to provide a pair.

  (B) In the embodiment described above, the connecting frames 5 in which the longitudinal center portions of the first frame 3 and the second frame 4 extend in a direction orthogonal to the longitudinal directions of the first and second frames 3 and 4. The support frame 2 is substantially H-shaped in plan view, and is connected to the first frame 3 by, for example, the connection frame 5 extending obliquely with respect to the longitudinal direction of the first and second frames 3 and 4. And the second frame 4 may be connected, and the support frame 2 may be configured in a substantially N shape in plan view.

  Moreover, in the said embodiment, although the 1st and 2nd side surface panels 7 and 8 are standingly arranged above the support frame 2, when the floor panel 9 is made into the standing state at least, the 1st side panel 7 and 8 is supported. Two side panels 8 may be provided. Furthermore, it is good also as providing the side panel which obstruct | occludes between the one side parts of the 1st and 2nd side panels 7 and 8. FIG. Moreover, in the said embodiment, in the longitudinal direction of the 1st and 2nd frames 3 and 4, the width | variety of the 1st and 2nd side surface panels 7 and 8, the floor surface panel 9, and the 1st and 2nd frames 3 and 4 are used. The width is configured to be substantially the same, but is not particularly limited to such a configuration. For example, the floor panel 9 slightly extends from the short sides of the first and second side panels 7 and 8. It can be changed as appropriate, such as overhanging.

  In addition, in the above embodiment, the floor panel 9 is rotatably connected to the second side panel 8 via the hinge member 11, but the floor panel 9 is rotated to the second frame 4 via the hinge member 11. You may connect so that movement is possible. Even when the configuration is adopted, nesting can be performed by allowing the connecting frame 5 of another transport vehicle 1 to be inserted between the second side panel 8 and the floor panel 9 in the upright position and the second frame 4. Thus, for example, it is desirable to connect the second frame 4 and the floor panel 9 at the central portion in the longitudinal direction of the second frame 4 (and at one end side from the central portion in the longitudinal direction).

  (C) In the above-described embodiment, the housing 62 and the operation unit 64 are integrally configured. However, they may be configured to be linked to each other as separate bodies. For example, the casing 62 can be rotated by sliding the operation unit in parallel with the short side portion of the first frame 3, or the operation unit can be slid in a direction orthogonal to the short side portion of the first frame 3. It is good also as a structure which rotates the housing 62. FIG. In the above embodiment, the shaft portion 63 is provided integrally with the housing 62, but may be provided on the first frame 3 separately from the housing 62. When the shaft portion 63 is configured separately from the housing 62, the housing 62 can be displaced in the short direction of the first frame 3 as a whole, but the first short side wall portion 52a sandwiching the shaft portion 63. Even if the operation portion 64 is operated by urging the housing 62 by a pair of coil springs 69 provided on the side and the second short side wall portion 52b side, the housing 62 and the shaft portion 63 are connected to each other. The housing 62 can always be in a contact state, and the housing 62 can be rotationally displaced around the contact portion with the shaft portion 63.

  (D) In the above embodiment, the casing 62 is configured to be in the engaged position when the amount of deformation of the coil spring 69 is “0”. For example, when the casing 62 is in the engaged position, The casing 62 and the reverse rotation preventing convex portion 77 may be pressed against each other by the urging force of the coil spring 69. In this case, the housing 62 can be more reliably held at the engagement position.

  Moreover, in the said embodiment, the coil spring 69 is provided in a pair, the coil spring 69 of the 1st short side wall part 52a side is provided in the 1st long side wall part 51a side of the housing 62, and the 2nd short side wall part The coil spring 69 on the 52b side is provided on the second long side wall 51b side of the housing 62, but is not particularly limited to such a configuration. For example, the coil spring 69 on the first short side wall 52a side is provided on the second long side wall 51b side of the housing 62, and the coil spring 69 on the second short side wall 52b side is provided on the first long side wall of the housing 62. Instead of providing the coil spring 69 to be contracted when the housing 62 is displaced to the unwinding position, or providing the pair of coil springs 69 on the opposite side with the housing 62 interposed therebetween, It may be provided on the same side. Further, one or three or more coil springs 69 may be provided for biasing the housing 62, or the housing 62 may be biased toward the release position by a biasing means different from the coil spring 69. It is good as well.

  (E) In the embodiment described above, teaching means for teaching the operation direction of the operation unit 64 when displacing the housing 62 to the unwinding position may be provided on the periphery of the operation opening 73. In this case, the operation direction of the operation unit 64 can be grasped instantaneously, and operability can be improved. The teaching means includes, for example, an arrow, a “lock release” character, etc., and these characters may be printed on a sticker and attached to the periphery of the operation opening 73. It is good also as printing directly with respect to the frame 45, or performing uneven | corrugated shaping | molding.

  (F) In the above embodiment, the support frame 2, the first and second side panels 7, 8 and the engaging part 35 are basically made of metal (for example, steel or aluminum), and the floor panel 9 is made of polypropylene. Although it is configured, it may be configured by other materials. For example, the upper frame 45 covering the metal lower frame 41 may be made of resin, and the floor panel 9 may be made of other resin materials such as polyethylene, PET, polyamide, or metal.

  DESCRIPTION OF SYMBOLS 1 ... Conveyance vehicle, 2 ... Support frame, 3 ... 1st frame, 4 ... 2nd frame, 5 ... Connection frame, 6 ... Caster, 7 ... 1st side panel, 8 ... 2nd side panel, 9 ... Floor panel, DESCRIPTION OF SYMBOLS 11 ... Hinge member, 35 ... Engagement part, 61 ... Lock member, 62 ... Housing, 63 ... Shaft part, 64 ... Operation part, 69 ... Coil spring.

Claims (3)

A pair of first and second frames that extend in parallel to each other and each has a caster attached to the lower surface thereof;
A connecting frame connecting the first frame and the second frame;
A standing body erected upward from the second frame;
A use position that is pivotally connected to the standing body or the second frame via a hinge member, and is supported by the upper surfaces of the first frame and the second frame so that an article can be placed thereon; A floor panel displaceable from the first frame to a standing position extending along the upright body apart from the first frame;
A transporting vehicle provided with locking means for restricting displacement of the floor panel to the standing position side when the floor panel is in the use position;
The locking means is
A housing that is provided on either one of the first frame or the portion of the floor panel that faces the first frame, and has a substantially rod shape;
Engagement means provided on the other side of the first frame or the portion of the floor panel facing the first frame, and engageable with the housing when the floor panel is in the use position; With
The casing extends from the vicinity of one end in the longitudinal direction of the first frame to the vicinity of the other end, and the engagement position is engaged with the engagement means in a state where the floor panel is in the use position. , And is configured to be displaceable to a release position where the engagement state with the engagement means is released
Biasing means for biasing the housing toward the engagement position;
A pair of operation means that are provided so as to be able to be operated by an operator, corresponding to both longitudinal ends of the casing, and interlocked with the casing,
A shaft support means for supporting an intermediate position in the longitudinal direction of the housing,
In any of the operations of the pair of operation means, the casing can be displaced to the release position by rotating in a fixed direction around the shaft support means. Carrying vehicle.   The said housing, the said biasing means, the said operation means, and the said shaft support means are provided in the said 1st frame, The said engaging means is provided in the said floor panel, The Claim 1 characterized by the above-mentioned. The listed transport vehicle.   The operation means is configured to be operable from the outer peripheral surface side of the first frame or the floor panel, and is provided on the inner peripheral side from the outer peripheral surface of the first frame or the floor panel. The conveyance vehicle according to claim 1 or 2.

Images