JP5559951B2 - Case device and carry cart suitable for use in the device - Google Patents

Description

  The present invention relates to a case device in which a plurality of case elements are fixed to a carry cart and transported by the cart, and a carry cart suitable for use in the device.

  A carry cart for carrying a load has a carriage on which the load is placed and an operation unit for moving the carriage. Here, in the case of a carry cart that carries a plurality of loads in a stacked state, the carriage typically has a loading platform portion having a plate-shaped loading surface on its upper surface, and a plurality of carriages that movably support the loading platform portion. With wheels or casters. The operation unit includes a handle that is gripped by an operator of the carry cart and a column that connects the handle and the carriage.

  As a technology for carrying a plurality of packages in a stacked state on a pedestal (also called a mounting table or a cart frame) as a loading platform, a technology for a cart that carries a bag consisting of bottle case frames such as beer bottle case frames is proposed. (Patent Document 1).

  In this patent document 1, the uppermost part of the lower bottle case frame and the lower end part of the upper bottle case frame are engaged with each other when stacked. It has been proposed that an engaging portion that engages with the lower end portion of the lower bottle case frame is formed on the upper surface of the loading platform (cart frame).

  However, in this proposed structure, the load on the upper portion of the stack is positioned by the load directly below, and there is no other means for fixing the load on the upper portion, so that the stack is relatively unstable and easily falls. Moreover, since it is necessary to form the shape engaged with the engaging part of the upper surface of a base (cart frame) in the lower end part of what should be stacked (a bottle case frame in this example), what should be stacked If it consists of a case such as a bag, it is difficult or unsuitable.

  When a plurality of carts are stacked, a vertical pillar is formed in the vicinity of the side edge of the carriage mounting table, and support columns (posts) are arranged in the through holes arranged in a row of the stacked carriages. It has also been proposed to form an operation part by connecting the upper ends of a plurality of support pillars with gripping parts serving as handles so that the whole can be integrated by inserting them and a plurality of support pillars can be erected (Patent Literature). 2)

  However, in the case of the technique disclosed in Patent Document 2, if the support pillar is inserted and fixed after stacking the carriages, it is troublesome that the lower end portion of the support pillar and the carriage need to be fixed near the floor. On the other hand, if the through hole of the carriage is fitted to the support column that is fixed in advance at the lower end of the carriage (loading platform) of the lowermost stage and extends upward, It may not be easy to place. In addition, when the item placed on the bottom cart is not a cart but a case such as a bag, there is a possibility that the mounting will be more troublesome and it may be difficult to provide an insertion hole in the main body of the case. .

  In the techniques disclosed in Patent Documents 1 and 2, when vertical vibration is applied, the stacked body may vibrate up and down or the support of the stacked body may become unstable (particularly in Patent Document 1). When the technique of Patent Document 2 is applied to stacking cases such as bags, there is a risk that what is housed in the case will be vertically damaged and damaged by vertical vibration.

  In the case of stacking a plurality of articles, it is also known to provide misalignment prevention means (for example, Patent Document 3). Note that the technique of Patent Document 3 has the same disadvantages as described above.

  On the other hand, it is known to apply a tensile force between the upper end and the lower end of the stacked packages in order to fix the packages stacked on the platform of the carriage (for example, Patent Document 4 and Patent Document 5). ).

  In Patent Document 4, the upper and lower ends of the fastening rod (杆) are engaged with the canopy and the engaged plate, and a downward biasing force is applied to the engaged plate on the lower side of the load by a coil spring. The upper canopy is pulled down by the fastening rod (杆) and pressed against the load.

  However, in the case of Patent Document 4, it is not only necessary to make the fastening rod approximately match the height of the load, but for example, it is necessary to provide engaging means on the top and bottom, and the fixing and releasing of the fixing are not necessarily performed. Not easy. In addition, if the member used for fixing falls apart after the fixing is released, there is a possibility that it may be troubled by the end (for example, the end of the fastening rod indicated by reference numeral 11).

  In Patent Document 5, a connecting means including a belt, a string, and a hooking belt is stretched between an upper frame made of a top plate or an angle frame and a lower frame member, and is fixed with a length adjusting bracket or the like. A technique for fixing a certain form of baggage formed by stacking boxes in multiple stages is disclosed.

  However, in the case of Patent Document 5, it is not always easy to fix or release the fixing, for example, it is necessary to provide an upper frame. For example, when fixing the upper frame with the connecting means, at least a pair of connecting means is provided on both sides (left and right or front and rear), and the tightening force is increased so that the degree of tightening of the connecting means on both sides is the same. Finally, it is necessary to complete the tightening and fixing is not easy. Further, for example, if the number of boxes is small or the height of the stacked body is low, there is a possibility that the way of movement itself changes.

  On the other hand, as a technique for stopping the cart at a desired height position, a technique for changing the height position of the handle of the carry cart (Patent Document 6) and a technique for adjusting the handle of the shopping cart steplessly (Patent Document 7) are proposed. Has been.

  Patent Document 6 also discloses that a carry cart is integrated into one case itself to facilitate carrying the case. However, this does not suggest a technique for stacking and carrying a plurality of cases (element bodies).

  A caster is attached to the case (storage box), and a handle-like extension called a stay is formed on the case so that the case with the caster is detachably attached to the carriage, and the stay can be removed. The engaged part to be attached to the carrier is formed on the carrier of the carriage, and a tightening band is provided for fixing the case to the carriage of the carriage (the fastening band is put around the case placed on the carrier). It has been proposed to fix the case to the carriage bed by tightening (Patent Document 8).

  In the technique of Patent Document 8, there are casters and stays in the case, and the case is intended to be fixed to the bed by tightening with a tightening band. Therefore, the technique of Patent Document 8 is also applied when a plurality of cases are stacked. hard.

JP-A-10-71955 Japanese Patent Laid-Open No. 11-105712 JP 2005-186656 A JP-A-8-175391 CD-ROM of Japanese Utility Model No. 3-42509 (Japanese Utility Model Laid-Open No. 5-56728) JP-A-6-329024 Japanese Patent Laid-Open No. 9-24834 Japanese Patent Laid-Open No. 11-152036

  The present invention has been made in view of the above-mentioned points, and the object of the present invention is not only a case device that can be easily and stably fixed in a state where a plurality of case element bodies are stacked, but also a case device that is easy to carry, And a carry cart suitable for use in the case device.

In order to achieve the above object, the case device of the present invention includes a cargo bed portion on which a load is placed, a cart portion including a caster that movably supports the cargo bed portion, and an operation unit extending upward from the cart portion. , A plurality of case bodies that are placed and stacked on the loading platform of the carry cart, and a locking mechanism that locks the plurality of case bodies stacked on the loading platform to the carriage Each case element body is provided with an engaged portion having the same shape on one side, and the operation portion includes a column portion extending upward from the carriage portion on one side of the cargo bed portion, and the A handle portion formed at the upper end portion of the support column, and the lock mechanism is mounted on the support column so as to be displaceable in the longitudinal direction of the support column. The loading platform with the side facing and facing the operating column Of the engagement mechanism main body portion and the engagement portion which protrudes from the engagement mechanism main body portion toward the plurality of case element bodies in a stacked state and can be engaged downward with respect to the engaged portion of each case element body. A plurality of case elements having a displacement restricting mechanism movable between a displacement prohibiting position for prohibiting displacement with respect to the column portion and a displacement allowing position for allowing displacement with respect to the column portion of the locking mechanism main body; In the state of being stacked on top, the engaging portion protruding from the locking mechanism main body portion that is displaced downward along the column portion is fitted to the engaged portion, and the downward surface of the engaging portion is engaged. A plurality of case elements are locked to the cart and are carried by the cart by being brought into contact with the upward surface of the joint portion .

  In the case device of the present invention, “a plurality of case bodies are locked in a state where they are stacked on the cart platform and are carried by the cart”, it is easy to carry a plurality of case bodies. It is. That is, in the case device of the present invention, a “carry cart having a cargo bed portion on which a load is placed, a cart portion having a caster that movably supports the cargo bed portion, and an operation portion extending upward from the cart portion. And a plurality of case elements that are placed and stacked as luggage on the cargo bed portion of the carry cart, and a locking mechanism that locks the plurality of case elements in a stacked state on the cargo bed portion to the carriage portion. Therefore, a plurality of case bodies are stacked as a load on the platform of the carriage part of the carry cart, and the stacks of the plurality of case bodies are locked to the carriage part by a locking mechanism to operate the carry cart. By operating the unit, a plurality of case bodies can be easily carried.

  In particular, in the case device of the present invention, “each case element has an engaged portion of the same shape on one side” and “the locking mechanism is displaceable in the longitudinal direction of the column portion. Locking mechanism toward the plurality of case elements in a stacked state on the loading platform in a state where the mounted locking mechanism main body part and the one side of each case element body are close to each other and face each other. A plurality of case elements that protrude from the main body and can be engaged downward with the engaged parts of each case element ”so that the one side is close to and faces the support column of the operation unit By engaging the engaging portion with the engaged portion, a plurality of case elements in a stacked state can be fixed to the carry cart. That is, in the case device of the present invention, the case body (stacked body) can be fixed to the carry cart only by performing fixing or locking operation in the vicinity of the operation part of the carry cart, and thus the fixing can be easily performed. . Further, in the case device of the present invention, the locking mechanism further includes a “displacement prohibiting position for prohibiting displacement of the locking mechanism main body portion with respect to the column portion and a displacement allowance for permitting displacement of the locking mechanism main body portion with respect to the column portion. Since the displacement restricting mechanism is movable between the position and the position of the displacement restricting mechanism is set to the allowable displacement position, the engaging mechanism is made movable with respect to the column by moving the locking mechanism main body to the case element. The engaged portion can be fixed at the engaged position by the engaging portion by engaging the corresponding engaged portion of the body and then setting the displacement restricting mechanism to the displacement prohibiting position. Fixing, in other words, fixing a plurality of case elements in a stacked state can be performed easily and reliably.

  In the case device of the present invention, when the case element volume stack is removed (separated) from the carry cart, the case element volume stack and the carry cart are divided into two, and the engaging means and the engaged means are the case. Since it is integrated with either the volume stack or the carry cart, post-processing such as fixing means after separation does not take time. Therefore, for example, in the case of repairing or other construction of air conditioning equipment, if the case device of the present invention is used to bring tools, measurement and other equipment to the repair or construction site, there will be no unsightly appearance. Therefore, tools and equipment can be brought into any place to repair equipment and perform other construction.

  In the above, typically, the engaging portion is provided in each of the engaged portion of the lowermost case element body and the engaged portion of the uppermost case element body among the plurality of case element bodies in the stacked state. When engaged and stacked in three or more stages, the engaged portion of the intermediate case body is typically not engaged by the engaging portion. However, if desired, they may be engaged at three or more locations. Moreover, even if it is a case where it fixes at two places, if desired, you may make it fix in two places other than the lowest stage and the highest stage.

  Here, in the case device of the present invention, the engaging portion protrudes from the locking mechanism main body portion, which is mounted on the support portion of the operation portion so as to be displaceable in the longitudinal direction, toward the plurality of case bodies in a stacked state. Then, since it engages with the engaged portion on one side of the case element body, it is engaged with the engaged portion on the near side of the plurality of case element bodies in the stacked state. That is, in the case device of the present invention, when fixing a plurality of case elements in a stacked state, unlike the normal fixing of a stacked body, a pressing force is not applied to the back side (in the case element) Since it is configured to exert a pressing force on a side edge adjacent to the support column of the operation unit of the carry cart, the fixing can be easily performed.

In case device of the present invention are typically, displacement restriction mechanism, and a pivotably connected displacement regulating member in the middle portion one end against the locking mechanism body portion is pressed against the support portion locking mechanism main body displacement prohibit you prohibit displacement relative strut pivot position and said one end of the displacement allowable rotational position you permit displacement with respect to strut the locking mechanism body portion away from the strut And an elastic biasing means that exerts a biasing force on the displacement regulating member to bias the member toward the displacement-inhibiting rotation position.

  In that case, the locking mechanism main body can be displaced with respect to the support column only by rotating the displacement restricting member to the displacement allowable rotation position, and the support of the displacement restricting member at the displacement allowable rotation position is released. Only by the elastic biasing means, the displacement restricting member can be rotated to the displacement prohibiting rotation position and pressed against the column portion, and the displacement of the locking mechanism main body can be prohibited. That is, simply by rotating the displacement restricting member to the displacement allowable rotation position, the engaging portion can be displaced with respect to the support column, and only by releasing the support of the displacement restricting member at the displacement allowable rotation position, Since the displacement regulating member is rotated to the displacement prohibition rotation position by the elastic biasing means and pressed against the support column, the engaged portion can be fixed by the engaging portion. Therefore, it is possible to easily fix and release the plurality of case elements in the stacked state.

  In the case device of the present invention, typically, the one end is frictionally engaged with the roughened surface of the column when the displacement restricting member is in the displacement prohibition rotation position.

  In that case, it is easy to be surely fixed by the engaging portion.

  In the case device of the present invention, typically, when the displacement restricting member is in the displacement prohibition rotation position, the one end is configured to be engaged with a convex portion of the concave and convex portions of the support column.

  In that case, the fixing by the engaging portion is easily performed firmly.

  In the case device of the present invention, typically, the displacement restricting mechanism includes a displacement prohibition control position and a displacement allowance control to displace the displacement restricting member between a displacement prohibition rotation position and a displacement allowance rotation position. A displacement restricting member operation control mechanism movable between the position and the displacement restricting member operation control mechanism. The displacement restricting member is configured to be able to apply a force to push down the displacement restricting member. When the displacement restricting control position is set, the engaging portion of the displacement restricting mechanism faces downward to the engaged portion of the case body. The displacement restricting mechanism is configured to be able to exert a downward force so as to be pressed against the displacement.

  In that case, “when the displacement restricting member operation control mechanism is set to the displacement permissible control position, the displacement restricting member is applied with a force for pulling up the displacement restricting member or a force for pushing down the displacement restricting member. When the displacement prohibition control position is set, a downward force is exerted on the displacement restriction mechanism so as to press the engagement portion of the displacement restriction mechanism downward against the engaged portion of the case body. `` It is configured to obtain '', so that the locking mechanism main body is displaced up and down so that the locked portions of a plurality of case elements in a stacked state are pushed downward, and the locked portions are stably fixed. Can do.

  In the case device of the present invention, typically, the operation unit has at least two parallel support columns, and each locking mechanism main body is fitted to each support column.

  In that case, the locked portions of the plurality of case bodies in the stacked state can be stably fixed.

  In the case device of the present invention, typically, the engaging portion that is engaged with the engaged portions of at least two case base bodies among the plurality of case base bodies that are placed and stacked on the carriage section. A plurality of displacement regulating mechanisms are provided.

  In that case, the locked portions of the plurality of case bodies in the stacked state can be stably fixed.

In the case device of the present invention, typically, one of the plurality of displacement restriction mechanisms is configured to lock the lowermost case element body among the plurality of case element bodies stacked on each other. Then, another displacement regulating mechanism among the plurality of displacement regulating mechanisms is configured to lock the uppermost case element body among the plurality of case element bodies stacked on each other.

  In that case, the locked portions of the plurality of case bodies in the stacked state can be fixed reliably and stably.

  In the case device of the present invention, typically, the cart includes a braking mechanism that brakes a front wheel on a side of the cart caster that is close to the support column.

  In this case, even if the case element is heavy, the cart can be tilted so that the upper portion of the cart support is tilted to the front side with the front wheel as a fulcrum by braking the front wheel by the braking mechanism. By releasing the braking in the state, the case device can be easily transported.

  Although the brake mechanism may be a manual type, if it is operated by a stepping type, the operation is easily performed so that the operation exerts a stable and strong force. Further, in the case of the stepping type, if the cart is tilted more than a predetermined amount so that the braking operation by the braking mechanism can be released, the braking can be easily released, and a large amount of heavy articles are accommodated in the case. Even when the case device is heavy for the reason described above, the conveyance can be performed more easily.

  In the case device of the present invention, typically, at least a part of the plurality of case elements has a thickness different from that of the other case elements.

  In that case, since a case body having a desired thickness can be used according to the contents to be stored, the case device can be used for a wide range of applications.

  In the case device of the present invention, typically, each case element body has an inter-fitting shape that fits in the stacking direction when stacked.

  In that case, the stability of the case elements constituting the plurality of case elements in the stacked state increases.

  The characteristics of the present invention are as follows from the viewpoint of a carry cart suitable for being applied to a case device. The technical significance of each feature is generally as described in the related part of the case device.

In order to achieve the above object, the carry cart of the present invention is a loading platform portion on which a plurality of case elements stacked as luggage and having engaged portions of the same shape on one side are placed. And a cart unit provided with a caster that movably supports the cargo bed part, a column part extending upward from the carriage part on one side of the cargo bed part, and an operation part provided with a handle part formed at the upper end of the pillar part And a locking mechanism for locking the plurality of case bodies in a stacked state on the loading platform to the carriage, the locking mechanism being displaceable in the longitudinal direction of the column. The locking mechanism main body part mounted on the part and the plurality of case element bodies stacked on the loading platform part protrude from the locking mechanism main body part and face downward with respect to the engaged parts of each case element body Engageable engaging part and locking mechanism Comprising a movable displacement restriction mechanism between a displacement permitting position for allowing the displacement with respect to strut displacement inhibition position and the locking mechanism body portion for prohibiting position, multiple cases body is stacked on the loading platform In this state, the engaging part protruding from the locking mechanism main body part displaced downward along the support part is fitted into the engaged part, and the downward surface of the engaging part is upward of the engaged part. It comprises a carry cart capable of fixing and transporting a plurality of case elements which are brought into contact with the surface so that the plurality of case elements are locked and carried.

The Carry cart of the present invention, typically, the displacement restriction mechanism, and a pivotably connected displacement regulating member in the middle portion one end against the locking mechanism body portion is pressed against the support portion locking mechanism main body displacement prohibit you prohibit displacement relative strut pivot position and said one end of the displacement allowable rotational position you permit displacement with respect to strut the locking mechanism body portion away from the strut And an elastic biasing means that exerts a biasing force on the displacement regulating member to bias the member toward the displacement-inhibiting rotation position.

In the carry cart of the present invention, typically, when the displacement restricting member is in the displacement prohibition rotation position, the one end is configured to be frictionally engaged with the roughened surface of the support column.

In the carry cart of the present invention, typically, when the displacement restricting member is in the displacement prohibition rotation position, the one end is configured to be locked to the convex portion of the concavo-convex portion of the support column.

  In the carry cart of the present invention, typically, the displacement restricting mechanism includes a displacement prohibition control position and a displacement allowance control so as to displace the displacement restricting member between a displacement prohibition rotation position and a displacement allowance rotation position. A displacement restricting member operation control mechanism movable between the position and the displacement restricting member operation control mechanism. The displacement restricting member is configured to be able to apply a force to push down the displacement restricting member. When the displacement restricting control position is set, the engaging portion of the displacement restricting mechanism faces downward to the engaged portion of the case body. It is comprised so that downward force may be exerted on a displacement control mechanism so that it may press on.

  In the carry cart of the present invention, typically, the operation unit has at least two parallel support columns, and each locking mechanism main body is fitted to each support column.

  In the carry cart of the present invention, typically, the engaging portion that is engaged with the engaged portions of at least two case base bodies among the plurality of case base bodies that are placed and stacked on the carriage section. A plurality of displacement regulating mechanisms are provided.

In the carry cart of the present invention, typically, one displacement restriction mechanism among the plurality of displacement restriction mechanisms is configured to lock the lowermost case element body among the plurality of case element bodies stacked on each other. Then, another displacement regulating mechanism among the plurality of displacement regulating mechanisms is configured to lock the uppermost case element body among the plurality of case element bodies stacked on each other.

The perspective explanatory view of the case device of one desirable example of the present invention. The partial cross section side explanatory view of the case apparatus of FIG. FIG. 3 is a partial cross-sectional side view of the case device of FIG. 1 in an assembly process. FIG. 3 is a perspective explanatory view of a locking mechanism of the case device of FIG. 1. 1 is an enlarged view of the operation of the locking mechanism of the case device of FIG. 1, (a) is an enlarged cross-sectional explanatory diagram of a restricted state (displacement prohibited state), and (b) is an unregulated state (displacement allowed state). FIG. FIG. 6 is a cross-sectional explanatory view of the locking mechanism of FIG. 5, where (a) is a cross-sectional explanatory view taken along the line VIA-VIA in FIG. 5A, and (b) is a cross-sectional explanatory view taken along the line VIB-VIB in FIG. FIG. 4C is a cross-sectional explanatory view similar to FIG. Explanatory sectional explanatory drawing about the latching | locking part of the latching mechanism of another modification. 1 is a perspective view of a case element volumetric stack, and FIG. 2B is a case of the case element volume stack. FIG. Exploded perspective view of an element body. FIG. 6 is a cross-sectional explanatory view similar to FIG. 5 for a modified example of the locking mechanism constituting the case device of a preferred embodiment of the present invention, wherein (a) is an enlarged cross-sectional explanatory view in a restricted state (displacement prohibited state); FIG. 4B is an enlarged cross-sectional explanatory diagram of a restriction release state (displacement allowable state). FIG. 6 is a cross-sectional explanatory view similar to FIG. 5 of another modified example of the locking mechanism constituting the case device of a preferred embodiment of the present invention, wherein (a) is an enlarged cross-sectional description of a restricted state (displacement prohibited state). FIG. 4B is an enlarged cross-sectional explanatory view in a restriction release state (displacement allowable state). The perspective explanatory view which showed a part (lower part) of the modification of the case apparatus of preferable one Example of this invention. 11A and 11B show the operation and operation of the brake mechanism of the case device of FIG. 11, wherein FIG. 11A is a side explanatory view showing a part of the case device in a normal transport state, and FIG. Side explanatory view showing a situation where a foot brake is applied to the front wheel, (c) is a side explanatory view showing a situation where the brake of the front wheel is released for the case device of (a), and (d) is (a) Side surface explanatory drawing which showed the condition which is releasing the brake by making it tilt in the case apparatus of). 11A and 11B show the operation and operation of the brake mechanism of the case device of FIG. 11, where FIG. 12A is an explanatory view showing the state of FIG. 12A from the front side, and FIG. An explanatory view showing the state from the front side, (c) is an explanatory view showing the state of FIG. 12 (c) from the front side, and (d) is an explanatory view showing the state of (d) of FIG. 12 from the front side. Figure.

  A preferred embodiment of the present invention will be described based on a preferred embodiment shown in the accompanying drawings.

  A case device 1 according to a preferred embodiment of the present invention includes a carry cart 2, a case element volume stack 3, and a locking mechanism 5.

  The carry cart 2 includes a cart unit 10 and an operation unit 20 extending upward from the cart unit 10.

  The carriage unit 10 includes a loading platform portion 11 on which the case volume stack 3 as a load is placed, and a caster 12 that supports the loading platform portion 11 in a movable manner. In the example shown in FIG. 1, four wheels are provided as the caster 12, but may be three or five or more if desired. If there are legs instead of wheels, there may be two wheels.

  The operation unit 20 includes support columns 21A and 21B extending upward from the cart unit 10 on one side 13 of the loading platform 11 (represented by reference numeral “21” when collectively referred to or not distinguished from each other), and the support column 21A. , 21B, and a handle portion 23 formed on upper end portions 22A and 22B (represented by reference numeral “22” when collectively referred to or when not distinguished from each other). The handle portion 23 has a U-shaped handle main body 27. The handle body 27 includes two “U” leg portions 27A and 27B and a “U” bottom portion 27C connecting the leg portions 27A and 27B. The leg portions 27A and 27B of the handle body 27 are extended with small-diameter columnar portions 28A and 28B (represented by reference numeral “28” when collectively referred to or when not distinguished from each other). Each of the columnar portions 28A, 28B has an E1 along the longitudinal direction E with respect to the holes 21aA, 21aB of the cylindrical columnar portions 21A, 21B (represented by reference numeral “21a” when collectively referred to or when not distinguished from each other). , E2 is slidable and can be locked. More specifically, the handle body 27 includes a push button 29 on the lower side of the bottom portion 27C that forms the grip portion. When the push button 29 is pressed, the columnar portions 28A and 28B are fitted to the support column portions 21A and 21A. In the state where the holes 21aA and 21aB of 21B are movable in the E1 and E2 directions and the push button is released, the columnar portions 28A and 28B are engaged with the support columns 21A and 21B in the holes 21aA and 21aB. It is stopped and fixed, and its relative displacement in the E1 and E2 directions is prohibited. The locking / fixing and release of the columnar portions 28A, 28B with respect to the column portions 21A, 21B can be elastically engaged with, for example, a recess formed at an interval on the inner peripheral surface of the column portions 21A, 21B. This is achieved by causing the engaging pieces to protrude from the rear end portions of the columnar portions 28A and 28B and pulling the engaging pieces into the non-projecting state by pressing the push button 29. However, the engagement and the release thereof may be achieved by other means.

  Typically, the carry cart 2 is used in the form of pulling with the handle portion 23 of the operation unit 20, but may be used to push with the handle portion 23 of the operation unit 20 if desired. . For example, in FIG. 1, a brake shoe (or brake pad) as indicated by an imaginary line 15 may be pressed against the caster or the wheel 12. In this case, for example, when the end of the lever 16 as shown by the imaginary line provided at the handle 23 is grasped, the lead 17 extending in the hollow columnar portions 28A and 28B according to the displacement of the lever 16 is obtained. Is pulled and the brake shoe 15 is pressed against the wheel 12 in the vicinity of the column 21 to apply the brake. When the lever 16 is released, the elastic force in the return direction is applied to the lead 17 by the elastic means (not shown) and the brake shoe or The brake pad 15 is released from the caster or wheel 12 and the brake is released. The wheel to which the brake is applied may be a wheel on one side in the vicinity of the column 21 or a pair of wheels on both sides, or one or a pair of wheels on the side away from the column 21.

  In addition, the support | pillar part 21 may consist of only one piece or three or more support | pillar parts instead of consisting of the two support | pillar parts 21A and 21B. In that case, the handle portion 23 also includes a number of columnar portions corresponding to the column portions so as to be locked.

  The case element volume stack 3 as a load is a plurality of case elements 30-i (ie, 30-1, 30-2,...) Placed and stacked as loads on the loading platform 11 of the carry cart 2. And a lid 39. The planar shape of each case element 30-i is the same, and is generally rectangular in this example. Each case element 30-i includes an engaged portion 40 having the same shape on one side 31a, that is, on one long side 31a of the long sides 31a and 31b of the rectangle.

  More specifically, as shown in FIGS. 8A and 8B, the case element volume stack 3 is formed by stacking a plurality of case elements 30-i, and the height of the case element 30-i. Hi can be different. In the example shown in FIG. 8, the case element volume stack 3 has four case element bodies 30-1, 30-2, 30-3 and 30-4 having different heights H 1, H 2, H 3 and H 4 (however, In the illustrated example, H1> H2> H3> H4). For example, when the case element 30i has a width of about 25 cm and a depth of about 35 cm, the heights H1, H2, H3, and H4 are, for example, about 22 cm, about 15 cm, about 12 cm, and about 7 cm, respectively. Is about 5 cm, for example. Each case element 30i is typically made of aluminum or an aluminum alloy, and has a lining having a thickness of about 3 to 5 mm. In this example, the higher the height Hi, the lower it is located, but the order may be different as desired. Of course, part or all of the height Hi may be the same. An uneven portion 32 having the same or common shape is formed on the top of each case element 30-i. Each case element 30-i includes a concave and convex part (not shown) complementary to the top concave and convex part 32 on the bottom surface 33, and when the case element bodies 30-i and 30-j are overlapped, The uneven portion 32 at the top of the case body 30-i on the side just fits with the uneven portion (not shown) of a complementary shape on the bottom surface 33 of the upper case body 30-j so that there is no backlash. After positioning, one or a plurality of case elements 30 are placed on the lowermost case element 30DL. The bottom surface 38 of the lid 39 is also formed with a concavo-convex portion having the same shape or the same shape as the concavo-convex portion of the bottom surface 33 of each case element 30-i and complementary to the concavo-convex portion 32. Then, the lid 39 is just fitted with the uneven portion 32 at the top of the case body 30UL where the complementary uneven portion of the lower end surface 38 is located at the uppermost end without any play. Each case element 30-i is sufficiently light and strong to carry without fear of deformation in a state in which heavy tools and measuring devices used for maintenance and repair of air conditioning equipment are stored, for example. .

  Further, as can be seen from (a) and (b) of FIG. 8, each case element 30 includes a lower end portion of the short sides 34 a and 34 b (represented by reference numeral “34” when both are collectively referred to or not distinguished), and Upper locking portions 35ua and 35ub and lower locking portions 35da and 35db which are locked to each other at the upper end portion are provided. As can be seen from FIG. 8 (a), in the state where the case bodies 30, 30 are stacked, the upper locking portion 36-i of the lower case body 30-i and the upper side placed immediately above it. The upper and lower case elements 30-j and 30-i can be fixed to each other by engaging and locking the lower locking portion 35-j of the case element 30-j. The locking portions 35ua, 35ub and 35da, 35db are in the center in the width direction of the short sides 34a, 34b on both sides of each case element 30i. In addition, the same shape or common locking portions 35 ua and 35 ub as the upper locking portions 35 ua and 35 ub are also formed at the center in the width direction of each short side of the lid 39.

  Further, lifting recesses 37a and 37b for lifting the case element 30 and the like by inserting a hand (four fingertips of the hand) into the surfaces of the short sides 34a and 34b of the case element 30-i. (When the two are collectively referred to or not distinguished, they are represented by reference numeral “37”). In addition, the grip for lifting may be a handle that can be swung up and down in the same manner as the top handle described below, instead of the recesses 37a and 37b, so that a larger force can be easily applied. Good.

  Ring-like hook portions 36a and 36b that can be swung up and down are formed on the portions of the short sides 34a and 34b of each case body 30-i that are closer to the right side than the central portion in the width direction. It can be lifted by hooking both ends of a shoulder belt (not shown) on the hooks 36a and 36b.

  A recess 39b is formed on the top surface 39a of the lid 39, and a handle 39c is disposed in the recess 39b. When the handle 39c is tilted as shown in FIGS. 8A and 8B, the handle 39c is positioned in the recess 39b so that its upper surface is flat, and can be gripped when it is rotated to stand up.

  The engaged portion 40 has a generally E-shape when viewed from above, and is fixed to the wall surface of the long side 31 a of the case body 30 at the tip of each arm portion 41, 42, 43 of “E”. ing. On the other hand, among the column portions 44 of “E”, the connecting portions 44A and 44B between the adjacent arm portions 41, 42 and 42, 43 are described later in cooperation with the adjacent arm portions 41, 42 and 42, 43. Receiving opening portions 45A and 45B of the engaging portion 60 are formed (represented by reference numeral “45” when both are collectively referred to or not distinguished).

  As long as each case element 30-i includes a common engaged portion 40, the case element 30-i and the case element volume stack 3 formed by stacking a plurality of the case elements 30-i have different shapes and shapes. The structure may be different from that illustrated.

  The locking mechanism 5 functions to lock the plurality of case base bodies 30, 30,..., That is, the case base volume stack 3, which are in a stacked state on the loading platform 11, to the cart section 10. As shown in FIGS. 1 to 5, the locking mechanism 5 includes a locking mechanism main body 50 that is mounted on the column portions 21 </ b> A and 21 </ b> B so as to be displaceable in the longitudinal direction E of the column portions 21 </ b> A and 21 </ b> B, 11 protrudes from the locking mechanism body 50 toward the case element volume stack 3 in which the one side 31a is close to and faces the support column 21 of the operation unit 20, and the case elements 30, 30 are stacked. ,... Along the longitudinal direction E with respect to the struts 21A and 21B of the engaging mechanism main body 50 and the engaging part 60 that can be engaged downward with respect to the engaged parts 40, 40,. A displacement restricting mechanism 70 (position PK1, position PK1, movable between a displacement prohibiting position PK1 that prohibits displacement in the vertical directions E1 and E2 and a displacement allowable position PK2 that allows displacement of the locking mechanism main body 50 with respect to the column portions 21A and 21B. For PK2, see Fig. 5) and A.

  In this case device 1, a plurality of case base bodies 30, 30,... Are stacked in the form of a case base volume stack 3 on the loading platform 11 of the cart 2. The cart 2 is engaged with the support column 21) connected to the carriage 10 and is carried by the cart 2.

  As shown in FIGS. 6A and 6B in addition to FIGS. 1, 2, 4, and 5, the locking mechanism main body 50 has a generally rectangular and thick plate-like sliding plate 51. And two pairs of bearing portions 52A, 52A and 52B, 52B protruding from one main surface side of the sliding plate portion 51. An engaging portion 60 is fixed to the other main surface side of the sliding plate portion 51. The sliding plate portion 51 includes two parallel through-holes 53A and 53B extending in the vertical direction E1 and E2 from the upper end surface to the lower end surface (represented by reference numeral “53” when both are collectively referred to or not distinguished), The through holes 53A and 53B are fitted to the columns 21A and 21B so as to be movable in the vertical directions E1 and E2. The sliding plate portion 51 also includes a groove portion 54 extending over the entire length in the width direction above the bearing portions 52A, 52A and 52B, 52B on the one main surface side, and the groove portion 54 includes the through holes 53A, Crossing a part of 53B, openings 55A and 55B (indicated by reference numeral "55" when both are collectively referred to or not distinguished) are formed at the intersections to expose the surfaces of the columns 21A and 21B. The sliding plate portion 51 further includes spring receiving portions 56A and 56B (represented by reference numeral “56” when both are collectively referred to or not distinguished) below the bearing portions 52A and 52A and 52B and 52B.

  The engaging portion 60 has a substantially “U” -shaped side surface shape. One leg 61 of the two legs 61, 62 constituting “U” is longer than the other leg 62, and the long leg 61 has the above-described sliding plate portion 51 of the locking mechanism main body 50. It is fixed to the other main surface. Of the engaging portions 50, one leg portion 61 constituting “U” and the bottom portion 63 of “U” extend substantially uniformly over the entire width direction. The other leg part 62 which comprises "U" among the engaging parts 50 consists of two leg part 62A, 62B located in the width direction at intervals, and each leg part 62A, 62B is each, The openings 45A and 45B of the engaged portion 40 can be inserted and engaged in the E2 direction.

  The engagement of the engaging portion 60 with the engaged portion 40 in the E2 direction is such that the leg portions 62A and 62B of the “U” of the engaging portion 60 enter the corresponding openings 45A and 45B of the engaged portion 40 in the E2 direction. And the bottom portion 63 of “U” of the engaging portion 60 is brought into contact with the columnar portions 44A and 44B of “E” of the engaged portion 40, thereby completing the operation. On the other hand, when the engagement portion 60 is disengaged from the engaged portion 40, the bottom portion 63 of the “U” of the engagement portion 60 moves from the columnar portions 44A and 44B of the “E” of the engaged portion 40 to the E1 direction. The end portions of the engaging portions 60 of the “U” leg portions 62A and 62B are separated from the corresponding openings 45A and 45B of the engaged portion 40 in the E1 direction.

  For example, when the engaged portion 40 has a “U” shape instead of an “E” shape, the leg portions 62A and 62B of the engaging portion 60 are, for example, a continuous leg portion 62. May be.

  Displacement restricting mechanisms 70A and 70B (represented by reference numeral “70” when collectively referring to both or not distinguished from each other) have displacement restricting members 72A and 72B rotatably connected to the locking mechanism main body 50. Displacement restricting members 72A and 72B (represented by reference numeral “72” when they are collectively referred to or not distinguished from each other) are coupled to the locking mechanism main body 50 via rotation center shafts 57A and 57B at intermediate portions 71A and 71B. The rotation center shafts 57A and 57B can be rotated around the central axes CA and CB. The central axes CA and CB are aligned on a straight line C. In addition, each rotation center axis | shaft 57A and 57B is supported by bearing part 52A, 52A and 52B, 52B, respectively. Even if the rotation center shafts 57A and 57B are relatively rotatable with respect to the bearing portions 52A, 52A and 52B and 52B, and are relatively rotatable with respect to the displacement regulating members 72A and 72B, both Relative rotation may be possible. The displacement restricting member 72 rotates around the central axis C between a displacement prohibition rotation position PR1 where one end 73 is pressed against the column 21 and a displacement allowable rotation position PR2 where the one end 73 separates from the column 21. It is dynamic.

  In addition to the displacement regulating members 72A and 72B, the displacement regulating mechanisms 70A and 70B serve as elastic biasing means that exerts a biasing force that biases the member 72 in the R1 direction toward the displacement prohibition rotation position PR1. Springs 75A and 75B (represented by reference numeral “75” when both are collectively referred to or not distinguished).

  Locking pieces 74A and 74B are attached to the one end portions 73A and 73B of the displacement regulating members 72A and 72B. The locking pieces 74A and 74B are made of a material having a high frictional engagement force under pressure, such as rubber. Accordingly, when the displacement restricting members 72A and 72B are rotated in the R1 direction under the action of the elastic displacement means 75A and 75B to take the displacement prohibiting rotation position PR1, the locking pieces 74A and 74B at the ends 73A and 73B are moved. The strut portions 21A and 21B are pressed against and frictionally engaged with the surface portions exposed through the openings 55A and 55B, and displacement of the locking mechanism main body 50 in the E1 and E2 directions with respect to the strut portions 21A and 21B is prohibited.

  When the displacement restricting member 72 is in the displacement prohibiting rotation position PR1, the locking pieces 74A and 74B of the one end 73 of the displacement restricting member 72 are frictionally engaged with the surfaces of the support pillars 21A and 21B, and are moved in the E direction. The surfaces 24 of the support columns 21A and 21B are roughened so that relative displacement can be prohibited.

  Further, the column 21 may have a quadrilateral or other polygonal shape as shown in FIG. 6C instead of the outer surface having a circular cross-sectional shape. In that case, by providing a flat friction engagement surface, the locking by the locking pieces 74A and 74B can be performed more reliably.

  Furthermore, if desired, when the displacement restricting member 72 is in the displacement prohibition rotation position PR1, the one end portion 73 is engaged with the convex portion 26 of the concavo-convex portion 25 of the column portion 21, as shown in FIG. It may be configured to be stopped. In that case, the locking pieces 74A and 74B of the one end portion 73 may be made of a hard material having a corner that can be reliably locked to the convex portion 26 of the concavo-convex portion 25 instead of a material such as rubber. Good.

  The locking mechanism 5 further includes an operating arm portion 80. The operating arm portion 80 is formed of a substantially “U” -shaped rigid structure, and includes two leg portions 81A and 81B and a gripping portion 82 that connects the leg portions 81A and 81B and forms the bottom of the “U”. The actuating arm portion 80 is fixed to the corresponding displacement regulating members 72A and 72B by the two “U” leg portions 81A and 81B. More specifically, the leg portions 81A and 81B of the operating arm portion 80 are substantially the same as the locking pieces 74A and 74B on the opposite side of the displacement regulating members 72A and 72B from the side facing the locking mechanism main body 50. It is fixed at a certain height.

  The use / operation of the case device 1 configured as described above is performed, for example, as follows.

  First, the support column 21 of the operation unit 20 of the carry cart 2 is set to a desired height according to the assumed amount (height) of the luggage.

  Next, the locking mechanism 5 is raised to a place higher than the height of the case body 30 to some extent.

For this purpose, the gripping portion 82 of the operating arm 80 is gripped and swung in the R2 direction, so that the position PR1 indicated by the solid line in FIG. 5A to the position indicated by the solid line in FIG. The displacement restricting member 72 is tilted to PR2 to separate the locking pieces 74A and 74B from the support columns 21A and 21B, and the operating arm 80 or the locking mechanism main body 50 and 50 connected to the operating arm 80 in the separated state is E1. Pull up in the direction. After the completion of the pulling, the operating arm 80 is released. As a result, the displacement regulating members 72 and 72 return to the displacement prohibition rotation position PR1, and the locking mechanism main body portions 50 and 50 return to the prohibition position PK1.

  Next, the lowermost case element 30 </ b> DL among the loads constituting the case element volume stack 3 is placed at a predetermined position on the loading part 11 of the carriage part 10 of the carry cart 2. This position may be defined by previously forming irregularities having a shape complementary to the irregularities at the bottom of the case body 30 on the surface of the loading platform 11.

  Next, the gripping portion 82 of the operating arm portion 80 is again gripped and swung in the R2 direction, so that the position PR1 indicated by the solid line in FIG. 5A is indicated by the solid line in FIG. 5B. The displacement restricting member 72 is tilted to the position PR2 to separate the locking pieces 74A and 74B from the support columns 21A and 21B, and the operating arm 80 or the locking mechanism main body 50 and 50 connected thereto is maintained in the separated state. By pushing down in the E2 direction, the engaging portion 60 of the locking mechanism 5 is brought into contact with and engaged with the engaged portion 50DL of the lowermost case body 30DL.

When this engagement is completed, the operating arm 80 is released. As a result, the displacement restricting members 72 and 72 return to the prohibition position PR1, and the displacement restricting mechanisms 70 and 70 return to the displacement prohibiting rotation position PK1. As a result, the lower locking mechanism 5 locks the lowermost case element body 30DL, and the fixing of the lowermost case element body 30DL to the carry cart 2 is completed. The state at this time corresponds to the state indicated by the solid line in FIG.

  In the case device 1, the engaging portion 60 is “a plurality of case bodies 30, 30, 30 that are stacked from the locking mechanism main body portion 50 that is mounted on the support column 21 of the operation portion 20 so as to be displaceable in the longitudinal direction. .. Projecting toward ”and engaging with the engaged portion 40 on one side 31a of the case body 30, so that the engaged parts on the near side of the plurality of case bodies 3 in a stacked state It will be engaged with the part 40. That is, in this case device, when fixing a plurality of case bodies 30, 30,... In a stacked state, unlike the normal fixing of the stacked body, a pressing force is not applied to the back side but a front side ( Since it is configured to exert a pressing force on the case body 30 on the side edge close to the support column 21 of the operation unit 20 of the carry cart 2, the fixing can be easily performed.

  Next, one or a plurality of desired case elements 30 are sequentially stacked on the lowermost case element 30DL. Even when one case element 30, 30,... Is stacked, even if the case element 30 is fixed by the engagement of the case element 30 locking portions 35u, 35d positioned below, After partial stacking is completed, fixing by engaging the locking portions 35u and 35d may be performed.

  When the formation of the case element volume stack 3 is completed by stacking desired case elements 30, 30,..., The engaging portion 40 of the other locking mechanism 5 that has been pulled up near the uppermost part is moved to the uppermost stage. The case body 30UL is engaged with the engaged portion 40UL. The operation for this is the same as the engagement operation of the locking mechanism 5 with respect to the lowermost case element body 30DL.

  In this way, after fixing the case element volume stack 3 to the carry cart 2, the case device 1 is formed by finally placing the lid 39 and fixing by the locking portions 35d and 35u.

  This case device 1 can be carried by grasping and pulling the handle portion 23 of the carry cart 2 by hand (it can also be carried by pushing if desired) as in the case with the conventional carry.

  When the desired place is reached, the case element volume stack 3 is released from the upper locking mechanism 5 and the upper case element bodies 30, 30,... Are lowered, and then the lower locking mechanism 5 is operated. The upper and lower locking mechanisms 5, 5 are released by the height required to unlock the lowermost case body 30 or to unlock the corresponding case bodies 30UL, 30DL by the upper and lower locking mechanisms 5, 5. Can be lowered from the carry cart 2 by displacing in the E1 direction. If desired, for example, the lowermost case body 30DL may remain fixed to the loading platform 11 of the carriage 10 of the carry cart 2. The lowered case element volume stack 3 can be further transported even when it cannot be transported by the carry cart 2 by hooking a shoulder belt (not shown) on the desired hook portions 36a and 36b, for example.

  In the case device 1, when the case element volume stack 3 is detached (separated) from the carry cart 2, the case element volume stack 3 is divided into the case element volume stack 3 and the carry cart 2, and the engagement means 60 and the like are engaged. Since the joining means 40 and the like are integrated with either the case element volume stack 3 or the carry cart 2, post-processing after the separation and the post-processing such as fixing means do not take time. Therefore, for example, in case of repairing air conditioning equipment or other work, if the case device 1 is used to bring tools, measurement and other equipment to the repair or construction site, there will be no unsightly appearance. You can bring tools and equipment to any location to repair equipment and do other work.

  In the above, it can be easily pushed down in the E2 direction while the operating arm 80 is rotated in the R2 direction. However, if the operating arm 80 is pulled up in the E1 direction, the operating arm 80 May be rotated in the R1 direction, or the displacement regulating mechanism 70 may be rotated in the R2 direction due to an impact, and the case element volume stack 3 may be incompletely locked. For example, as shown in FIGS. 9A and 9B, a rotation restriction control mechanism 90 as a displacement restriction member operation control mechanism for restricting the rotation of the displacement restriction mechanism 70 may be further provided.

  In the example of FIG. 9, the same members and elements as in FIGS. 1 to 6 are denoted by the same reference numerals, and those having differences are denoted by the suffix Q.

  The rotation restriction control mechanism 90 includes a rotation restriction control lever 92 that is rotatably supported in the F1 and F2 directions by a support portion 91 protruding from the sliding plate portion 51Q of the locking mechanism main body portion 50Q. It has a displacement restricting member 72Q provided with an engaging groove portion 93 and an engaging surface portion 94 that can engage with the restriction control lever 92.

  The rotation restriction control lever 92 includes a rotation restriction control lever main body 95 that is rotatably supported by the support portion 91 at the base end, and a tip engagement that extends in a direction intersecting with the front end of the rotation restriction control lever main body 95. And a joint portion 96.

  As shown by the solid line in FIG. 9A, when the displacement regulating member 72Q is at the locking position PR1 and the locking piece 74 is in contact with the surface 24 of the support column 21, the rotation regulating control lever 92 is When the displacement prohibition control position PC1 is set, the tip engagement portion 96 of the rotation restriction control lever 92 is just fitted into the engagement groove portion 93 of the displacement restriction member 72Q. Therefore, even if the spring force of the spring 75 is not so strong or an unexpected impact is received, the locking mechanism 5 is kept engaged with the engaged portion 40 in the engaging portion 60, and the case The element body 30 can be reliably maintained in a fixed state.

  As shown by the solid line in FIG. 9B, when the displacement restricting member 72Q is in the unlocking position PR2 and the engaging piece 74 is separated from the surface 24 of the support column 21, the rotation restricting control lever 92 is When the displacement allowable control position PC2 is set, the tip engagement portion 96 of the rotation restriction control lever 92 contacts the engagement surface portion 94 of the displacement restriction member 72Q at the outer surface 97 thereof. Accordingly, for example, even when the locking mechanism 5 is displaced in the E1 direction with respect to the column 21 by holding the gripping portion 82 of the operating member 80 in the E1 direction, the locking piece 74 of the column 21 There is no possibility of hitting the surface 24, and the locking mechanism 5 can be easily and reliably pulled up in the E1 direction.

  Instead of providing the rotation restriction control mechanism 90 as shown in FIGS. 9A and 9B, for example, the position of the rotation restriction mechanism is changed as shown in FIGS. 10A and 10B. A rotation restriction control mechanism 90S that can be directly controlled may be provided.

  In the example of FIG. 10, the same members and elements as in FIGS. 1 to 6 and FIG. 9 are denoted by the same reference numerals, and those having differences are suffixed with a suffix S. The last subscripts A and B represent left and right corresponding elements as described above.

  The rotation restriction control mechanism 90S as a displacement restriction member operation control mechanism is a cam member provided with an oval cam body part 97b supported rotatably by a shaft part 97a by a sliding plate part 51S of the locking mechanism main body part 50S. 97, a rotation restricting control lever 98 fixed at one end to the shaft portion 97a of the cam member 97 and protruding at the other end, and a cam follower 99 integral with the displacement restricting member 72S, and two curved convex portions 99a, 99b, and a recess 99c that smoothly connects between them.

  More specifically, for example, left and right cam followers 99A and 99B are formed on two displacement restricting members 72SA and 72SB, respectively, and correspond to the cam followers 99A and 99B of the respective displacement restricting members 72SA and 72SB. Cam body portions 97bA and 97bB are provided, and the shafts 97aA and 97aB of the cam members 97A and 97B are formed of a single body 97a aligned in a straight line, and one rotation restriction control lever 98 is attached to the shaft 97a. .

Therefore, as shown in FIG. 10A, the rotation restriction control lever 98 extends substantially horizontally, and the protruding portion 97c of the oval cam body portion 97b engages with the valley portion 99c of the cam follower 99. In the displacement prohibition control position or the displacement prohibition control state PC1, the displacement restricting member 72S extends in the vertical direction, and the locking piece 74 that forms the end portion 73 adopts the displacement prohibition rotation position PR1 where the engaging piece 74 engages the surface 24 of the column 21.

On the other hand, as shown in FIG. 10B, for example, the displacement allowable control position or the displacement allowable control state position inclined by rotating the rotation restriction control lever 98 in the J1 direction around the central axis of the shaft portion 97a, for example. When PC2 is set, the projecting portion 97c of the oval cam body portion 97b is engaged with the convex portion 99a of the cam follower 99, the displacement restricting member 72S is rotated in the R2 direction, and the locking piece 74 is A displacement allowable rotation position PR2 separated from the surface 24 is taken.

  In this state, by applying a force in the E1 direction or the E2 direction to the rotation restriction control lever 98 or the aforementioned operating arm portion 80, the displacement restriction member 72S is displaced in the E1 direction or the E2 direction with respect to the column portion 21, The engaging part 50 can be displaced in the E1 direction or the E2 direction. In this case, the operating arm 80 may not be provided.

  In the above example, for example, the lower ends of the displacement regulating members 72, 72Q, 72S which are rotated in the R2 direction and are in the displacement allowable position can be prevented from interfering with the spring receiver 56 of the spring 75. In FIG. 5, a stopper as indicated by an imaginary line 58 may be provided. A member that performs the same function as the stopper 58 may be provided at another desired location.

  It will be apparent that the structure of the displacement restricting mechanism and the structure of the displacement restricting member operation control mechanism exemplified above can be changed as desired.

  For example, when the manual brake 16 as shown in FIG. 1 or the like is used, by operating the manual brake 16, the front wheels (typically front wheels) 12A and 12B of the carry cart 2 of the case device 1 are controlled. A brake shoe 15 is preferably provided at both front wheels 12A and 12B so that both can be stopped. In that case, by stopping the front wheels 12A and 12B, the column portion 21 can be easily tilted so that the handle portion 23 on the upper end side of the column portion 21 is located on the near side, and the carry cart 2 is brought into a normal movement state. Easy to set.

  In order to stop the rotation of the front wheels 12A and 12B and tilt the column 21W in the M1 direction, the case device 1W includes, for example, the manual brake-related mechanisms 16, 17, and 15, instead of the manual brake related mechanisms 16, 17, and 15 for example. It is more preferable to provide the foot type brake mechanism 100 as shown. 11 to 13, the same elements as those shown in FIGS. 1 to 10 are denoted by the same reference numerals, and elements that are generally corresponding but different are denoted by the suffix “W” at the end of the same numerals. It is.

  The foot type brake mechanism 100 includes a foot type brake operation instruction lever 110, a lever position setting mechanism 120, and a brake main body 130 coupled to the lever 110.

  The foot-operated brake operation instruction lever 110 includes left and right end portions 111A and 111B (when the end portions are collectively referred to or indicated by reference numeral “111”), and the axles 112A and 112B of the front wheels 12A and 12B (the end portions are collectively referred to). And a stepping operation portion 113 extending in the width direction of the carry cart 2W between the end portions 111A and 111B. The foot-operated operation unit 113 includes a rising portion or a gate-like bent portion 114 into which the foot V can be inserted at the center thereof.

  In this case device 1W, the carriage unit 10W has a notch portion 11a or the like that allows displacement of the gate-like bent portion 114 of the stepping brake operation instruction lever 110 on the front end portion 13W side of the loading platform portion 11W.

  The foot-operated brake operation instruction lever 110 is in a non-actuated position PV1 as indicated by a solid line in FIGS. 12A and 12C and indicated by a broken line in FIG. 12B, and a solid line in FIG. And is movable in the N1 and N2 directions between the operation position PV2 as indicated by the broken line in FIG. In addition, (a)-(d) of FIG. 13 respond | corresponds to (a)-(d) of FIG. 12, respectively.

  For example, when the brake operation instruction lever 110 is in the non-operation position PV1, the brake main body 130 is set to the non-operation position PG1 corresponding to the brake operation instruction lever 110, and allows the front wheels 12A and 12B to rotate. When the lever 110 is in the operation position PV2, the position is set to the operation position (braking position) PG2 corresponding thereto, and the front wheels 12A and 12B are braked and their rotation is prohibited. The brake main body 130 is composed of, for example, a disc brake. However, other types of brakes may be used.

  Even if the lever position setting mechanism 120 is a mechanism (for example, a toggle mechanism) that stabilizes the brake operation instruction lever 110 at two positions of the non-operation position PV1 and the operation position PV2, for example, the brake position is arbitrarily increased. It may be possible to be positioned so as to remain metastable continuously at the position. In the latter case, for example, each of the rotation shafts of the front wheels 12A and 12B is supported by a U-shaped support portion, and is integrated with the lever 110 as the wheel brake operation instruction lever 110 rotates toward the operation position PV2. Such a portion may be configured such that the U-shaped support portion is pressed and frictionally engaged with both side surfaces of the front wheels 12A and 12B.

  In the case device 1W in which the brake mechanism 100 is configured as described above, as shown in FIGS. 12A and 13A, when the brake operation instruction lever 110 takes the position PV1 in which the brake operation instruction lever 110 jumps up in the N2 direction, The main body 130 takes the non-braking position PG1, and the front wheels 12A and 12B are in a non-braking state and are rotatable.

  On the other hand, when the stepping operation portion 113 of the brake operation instruction lever 110 of the brake mechanism 100 is stepped in the N1 direction with the foot V as shown in FIG. 110 is rotated in the N1 direction to move to the braking position PV2, and the brake main body 130 also moves from the non-braking state PG1 to the braking state PG2.

  In this braking state PG2, since the rotation of the front wheels 12A and 12B is prohibited, if the support column 21W is tilted in the M1 direction via a handle (not shown), the rotation disabled front wheels 12A and 12B are used as fulcrums. Thus, the case device 1W as a whole is tilted in the M1 direction. Therefore, even if the case device 1W is heavy by pulling the handle (not shown) in such a tilted state (after releasing the rotation inhibition (braking) of the front wheels 12A and 12B as described below), The case apparatus 1W can be transported in a stable state.

  In order to make the front wheels 12A and 12B of the case device 1W rotatable, for example, as shown in FIG. 12C and FIG. 13C, the brake operation instruction lever 110 is not moved from the braking position PV2. What is necessary is just to rotate to N2 direction to the braking position PV1. For this purpose, for example, the foot V is inserted under the portal portion 114 and pushed up by the back of the foot V (in FIG. 12C, the case device 1W is in a horizontal state with the rear wheel on the ground). Although an example is shown, it is the same even if it is tilted in the M1 direction).

  Further, in order to set the brake mechanism 100 from the braking state PV2, PG2 to the non-braking state PV1, PG1 with the case device 1W tilted in the M1 direction, as shown in FIG. For example, as shown in FIG. 12 (d), the entire operation of the carry cart 2W of the case device 1W is tilted further in the M1 direction, so that the brake operation instruction lever is The lower extension portion 116 of the stepping operation portion 110 of 110 is pressed against the ground, and a force in the N2 direction is applied to the extension portion 116, whereby the brake operation instruction lever 110 is moved from the braking position PV2 to the non-braking position ( (Braking release position) PV1 may be rotated in the N2 direction. In this case, braking can be released by simply tilting the carry cart 2W largely in the M1 direction without using the foot V or the like. In this manner, in order to set the brake operation instruction lever 110 from the braking position PV2 to the non-braking position PV1, typically, as the lever position setting mechanism 120, for example, a toggle mechanism is used. When the mechanism is provided and the brake operation instruction lever 110 is pivoted away from the braking position PV2 to some extent, thereafter, the lever position setting mechanism 120 forces the brake operation instruction lever 110 to the non-braking position PV1. It is sufficient to make it displace up to. However, depending on the case, the braking may be gradually released by turning.

1, 1W Case device 2, 2W Carry cart 3 Case element volume overlap body 5 Locking mechanism 10, 10W Carriage part 11, 11W Carriage part 11a Notch part 12, 12A, 12B Caster 13, 13W One side 15 Brake shoe 16 Brake Actuation Lever 17 Brake Guide 20 Operation Units 21, 21A, 21B, 21W Posts 21aA, 21aB Holes 22, 22A, 22B Upper End 23 Handle 24 Surface 25 Concave 26 Convex 27 Handle Main Body 27A, 27B Leg Part 27C Bottom (gripping part)
28, 28A, 28B Columnar part 29 Pushbutton 30,30-1,30-2,30-3,30-4,30-i, 30-j Case element 31,31a, 31b Long side 32 of case element Concave and convex portion 33 Bottom surface 34, 34a, 34b Short side 35da, 35db Lower locking portion 35ua, 35ub Upper locking portion 36, 36a, 36b Shoulder belt hooking portion 37, 37a, 37b Recess 38 Lower end surface 39 of lid 39 lid 39a Top surface 39b Concave portion 39c Handle 40 Engaged portions 41, 42, 43 Arm portions 44 Column portions 44A, 44B Connecting portions 45, 45A, 45B Receiving opening portions 50, 50Q, 50S Locking mechanism main body portions 51, 51Q, 51S Moving plate 52A, 52B Bearing 53, 53A, 53B Through hole 54 Groove 55, 55A, 55B Opening 56, 56A, 56B Spring receiving portion 58 Stopper 60 Engagement 61 "U" leg 62 "U" leg 62A, 62B Leg part 63 "U" bottom 70 Displacement restricting mechanism 71, 71A, 71B Intermediate part 72, 72A, 72B, 72Q Displacement restricting member 73 One end 74A, 74B Locking piece 75, 75A, 75B Spring 80 Actuating arm part 81 Leg part 82 Leg part 83 Holding part (bottom part of "U")
90, 90S Rotation restriction control mechanism 91 Support part 92 Rotation restriction control lever 93 Engaging groove part 94 Engaging surface part 95 Rotation restriction control lever body part 96 Tip engagement parts 97, 97A, 97B Cam members 97a, 97aA, 97aB Shaft 97b, 97bA, 97bB cam body part 97c Projection part 98 Rotation restriction control lever 99, 99A, 99B Cam follower 99a, 99b Convex part 99c Concave part 100 Foot type brake mechanism 110 Foot type brake operation instruction lever 111, 111A, 111B End part 112A , 112B Axle 113 Foot operation part 114 Portal bending part 116 Extension part 120 Lever position setting mechanism 130 Brake body part E, E1, E2 Stroke longitudinal direction F1, F2 Rotation direction H1, H2, H3, H4, Hi Height M1, M2 Rotation direction N1, N2 Rotation direction PC1 (Displacement restriction controller Of) the displacement inhibiting control position PC2 () displacement permitting control position PG1 non-braking position of the displacement regulation control mechanism (non-braking state)
PG2 Braking position (braking state)
PK1 (a displacement restriction mechanism) (displacement restriction mechanism) displacement forbidden location PK2 displacement permitting position PR1 Displacement prohibiting rotational position PR2 Displacement allowable rotational position PV1 of non-braking position PV2 braking position R, R1, R2 displacement-regulating member Rotation direction

Claims (20)

A carry cart having a cargo bed portion on which a load is placed, a cart portion having a caster that movably supports the cargo bed portion, and an operation portion extending upward from the cart portion;
A plurality of case elements that are placed and stacked as luggage on the loading platform of the carry cart;
A case device comprising: a locking mechanism for locking a plurality of case elements in a stacked state on the loading platform to the carriage,
Each case element has an engaged portion of the same shape on one side,
The operation unit includes a column part extending upward from the carriage part on one side of the cargo bed part and a handle part formed at an upper end part of the column part,
The locking mechanism is
A locking mechanism main body mounted on the column so as to be displaceable in the longitudinal direction of the column;
The one side of each case element protrudes from the locking mechanism main body toward the plurality of case elements in a stacked state on the loading platform in a state where the one side is close to and faces the support column of the operation unit. An engagement portion that can be engaged downward with respect to the engaged portion, a displacement prohibition position that prohibits displacement of the locking mechanism main body portion with respect to the column portion, and a displacement allowable position that allows displacement of the locking mechanism main body portion with respect to the column portion. And a displacement regulating mechanism movable between
In a state where a plurality of case bodies are stacked on the cart platform, the engaging portion protruding from the locking mechanism main body portion displaced downward along the support column is fitted to the engaged portion and is engaged. A case device in which a downward surface of a joint portion is brought into contact with an upward surface of an engaged portion, whereby a plurality of case elements are locked to a cart and carried by the cart. The displacement regulation mechanism
Locking mechanism body displacement prohibiting one end a pivotably connected displacement regulating member at an intermediate portion you prohibit displacement against strut engaging mechanism main body is pressed against the support portion with respect to unit dose as a pivot between the displacement permitting rotational position you permit displacement with respect to strut the locking mechanism body portion turned position and said one end away from the support portion,
The case device according to claim 1, further comprising: an elastic biasing unit that exerts a biasing force on the displacement restricting member to bias the member toward the displacement-inhibiting rotation position. The case device according to claim 2, wherein the one end is frictionally engaged with the roughened surface of the support column when the displacement restricting member is in the displacement prohibition rotation position. The case device according to claim 2, wherein when the displacement restricting member is in a displacement prohibiting rotation position, the one end is configured to be locked to a convex portion of the concave and convex portions of the support column. The displacement restricting mechanism is a displacement restricting member operation control movable between a displacement prohibiting control position and a displacement allowing control position so as to displace the displacement restricting member between a displacement prohibiting turning position and a displacement allowing turning position. Further having a mechanism,
When the displacement restricting member operation control mechanism is set to the displacement permissible control position, the displacement restricting member operation control mechanism can apply a force for pulling up the displacement restricting member or a force for pushing down the displacement restricting member to the displacement restricting member. Configured,
When the displacement prohibition control position is set, a downward force can be applied to the displacement restricting mechanism so as to press the engaging portion of the displacement restricting mechanism downward against the engaged portion of the case body. The case device according to any one of claims 1 to 4. The case device according to any one of claims 1 to 5, wherein the operation unit includes at least two parallel support columns, and each locking mechanism main body is fitted to each support column. 2. A plurality of displacement regulating mechanisms including the engaging portions engaged with engaged portions of at least two case element bodies among a plurality of case element bodies placed and stacked on the carriage part. The case device according to any one of items 6 to 6. One of the displacement restriction mechanism of the plurality of displacement restriction mechanism is configured to lock the bottom of the case body of the plurality of cases body stacked on one another, the different ones of the plurality of displacement restriction mechanism The case according to any one of claims 1 to 7, wherein the one displacement regulating mechanism is configured to lock an uppermost case element among a plurality of case elements stacked on top of each other. apparatus. The case device according to any one of claims 1 to 8, wherein the cart includes a braking mechanism that brakes a front wheel on a side of the cart caster adjacent to the support column. The case device according to any one of claims 1 to 9, wherein at least a part of the plurality of case elements has a thickness different from that of the other case elements. The case device according to any one of claims 1 to 10, wherein each case element body includes an inter-fitting shape that fits in the stacking direction when stacked. A carriage equipped with a loading platform portion on which a plurality of case bodies stacked as luggage and having an engaged portion of the same shape on one side are placed, and a caster that movably supports the loading platform portion And
A carriage unit that includes a column part that extends upward from the carriage part on one side of the carriage part, an operation part that includes a handle part formed at the upper end of the pillar part, and a plurality of case elements that are stacked on the carriage part A carry cart having a locking mechanism for locking to
The locking mechanism is
A locking mechanism main body mounted on the column so as to be displaceable in the longitudinal direction of the column;
The one side of each case element protrudes from the locking mechanism main body toward the plurality of case elements stacked on the loading platform in a state where the one side is close to and faces the support column of the operation unit, and the case element is covered with the cover. An engaging portion that can be engaged downward with respect to the engaging portion; a displacement prohibiting position that prohibits displacement of the locking mechanism main body portion with respect to the column portion; and a displacement allowable position that allows displacement of the locking mechanism main body portion with respect to the column portion. comprising a movable displacement restriction mechanism between,
In a state where a plurality of case bodies are stacked on the loading platform, the engaging portion protruding from the locking mechanism main body portion that is displaced downward along the support column is fitted to the engaged portion and the engaging portion A plurality of case element bodies are locked and conveyed by contacting the downward surface of the upper part with the upward surface of the engaged portion. Possible carry cart. The displacement regulation mechanism
Locking mechanism body displacement prohibiting one end a pivotably connected displacement regulating member at an intermediate portion you prohibit displacement against strut engaging mechanism main body is pressed against the support portion with respect to unit dose as a pivot between the displacement permitting rotational position you permit displacement with respect to strut the locking mechanism body portion turned position and said one end away from the support portion,
The carry cart according to claim 12, further comprising: an elastic biasing unit that exerts a biasing force on the displacement regulating member so as to bias the member toward the displacement-inhibiting rotation position. The carry cart according to claim 13, wherein the one end portion is frictionally engaged with the roughened surface of the support column when the displacement restricting member is in the displacement prohibition rotation position. The carry cart according to claim 13, wherein the one end is locked to a convex portion of the concavo-convex portion of the support column when the displacement restricting member is in the displacement prohibition rotation position. The displacement restricting mechanism is a displacement restricting member operation control movable between a displacement prohibiting control position and a displacement allowing control position so as to displace the displacement restricting member between a displacement prohibiting turning position and a displacement allowing turning position. Further having a mechanism,
When the displacement restricting member operation control mechanism is set to the displacement permissible control position, the displacement restricting member operation control mechanism can apply a force for pulling up the displacement restricting member or a force for pushing down the displacement restricting member to the displacement restricting member. Configured,
When the displacement prohibition control position is set, a downward force can be applied to the displacement restricting mechanism so as to press the engaging portion of the displacement restricting mechanism downward against the engaged portion of the case body. The carry cart according to any one of claims 12 to 15. The carry cart according to any one of claims 12 to 16, wherein the operation portion has at least two parallel support columns, and each locking mechanism main body is fitted to each support column. 13. A plurality of displacement restricting mechanisms including the engaging portions engaged with engaged portions of at least two case element bodies among a plurality of case element bodies placed and stacked on the carriage part. The carry cart according to any one of items 1 to 17. One of the displacement restriction mechanism of the plurality of displacement restriction mechanism is configured to lock the bottom of the case body of the plurality of cases body stacked on one another, the different ones of the plurality of displacement restriction mechanism The carry according to any one of claims 12 to 18, wherein one displacement regulating mechanism is configured to lock the uppermost case element among a plurality of case elements stacked on top of each other. cart. The carry cart according to any one of claims 12 to 19, further comprising a braking mechanism that brakes a front wheel on a side of the caster that is close to the support column.

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