JP7429030B2 - Transport trolley - Google Patents

Description

The present invention relates to a transport vehicle.

As a transport trolley for transporting articles, Patent Document 1 discloses a transport trolley in which a girder member is attached to the main body of the trolley in advance.

Japanese Patent Application Publication No. 2010-137690

The transport cart disclosed in Patent Document 1 can load objects of a length that can be bridged between two girder members, but cannot load objects of a length that cannot be bridged between two girder members. The problem is that it is difficult to load.
The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to make it possible to easily load objects to be transported.

The present invention is a transportation trolley comprising a truck main body having a plurality of loading parts and a plurality of frame parts on which objects to be transported are loaded, and a running part attached to the trolley main body and running on a running surface. , when the longitudinal direction of the trolley main body is defined as front and back in a plan view, and the lateral direction of the trolley main body is defined as left and right, the plurality of mounting parts are arranged along the left and right directions, and the trolley main body is , having a guide part provided on a frame part arranged along the front-rear direction among the plurality of frame parts, and screwed into a bolt member of at least one of the plurality of mounting parts. When the nut member is guided within the guide section, the one mounting section slides in the front-back direction, and the distance between the mounting sections in the front -back direction can be adjusted. By adjusting, the position of the one mounting section changes relative to either of the front frame section located at the front end and the rear frame section located at the rear end of the plurality of frame sections. It is characterized by being

According to the present invention, objects to be transported can be easily loaded.

FIG. 2 is a perspective view of the transport truck of the first embodiment. FIG. 2 is a plan view of the transport vehicle of the first embodiment. It is a bottom view of the transportation trolley of 1st Embodiment. FIG. 2 is a side view of the transport vehicle of the first embodiment. FIG. 3 is a diagram showing the configuration of a mounting section according to the first embodiment. FIG. 2 is a side view showing a stacked state of the transport carts of the first embodiment. FIG. 3 is a perspective view of a transport truck according to a second embodiment. FIG. 7 is a plan view of a transport vehicle according to a second embodiment. FIG. 7 is a side view of a transport truck according to a second embodiment. FIG. 7 is a side view showing a state in which the transport carts of the second embodiment are stacked. It is a figure which shows the structure of the mounting part of a modification.

Hereinafter, a transport vehicle according to the present embodiment will be explained with reference to the drawings.
<First embodiment>
FIG. 1 is a perspective view of a transport vehicle 10 according to the first embodiment. FIG. 2 is a plan view of the transport vehicle 10. FIG. 3 is a bottom view of the transport vehicle 10. FIG. 4 is a side view of the transport vehicle 10. In each figure, the traveling direction of the transport trolley 10 is set as the front-rear direction, and the front side is shown as Fr, the rear side as Rr, the right side as R, and the left side as L. Therefore, the side view of FIG. 4 is a view seen from a direction perpendicular to the direction of movement of the transport vehicle 10. In addition, the transportation trolley 10 of this embodiment is not limited to the front side, and can travel in any direction including front, rear, left, and right.

The transportation truck 10 includes a truck main body 20, a running section 30, a handrail member 40, and the like.
The trolley main body 20 is configured by connecting a plurality of frame parts, etc., and the longitudinal direction is front and back when viewed from above, and the transversal direction is left and right. The truck body 20 is longer in the front-rear direction than in the left-right direction, and has a substantially rectangular shape consisting of a pair of long sides and a pair of short sides. As shown in FIGS. 1 to 3, the bogie body 20 includes a front frame portion 21a, a rear frame portion 21b, a right frame portion 21c, a left frame portion 21d, a corner member 22, a reinforcing frame portion (reinforcing portion) 25a, 25b, 25c, etc. The front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d correspond to an example of a substantially rectangular frame portion.

For the front frame part 21a, the rear frame part 21b, the right frame part 21c, and the left frame part 21d, for example, an angular hollow pipe made of aluminum alloy can be used. Further, the corner member 22 is made of, for example, an aluminum alloy formed by extrusion molding. The corner member 22 has an insertion hole 23 that opens upward, and a stopper portion 24 (see FIG. 3) that closes the downward direction. A hand pushing member 40 can be inserted into the insertion hole 23 of the corner member 22 . The lower end of the hand press member 40 inserted into the insertion hole 23 is supported by the stopper portion 24 .

The front frame part 21a, the rear frame part 21b, the right frame part 21c, and the left frame part 21d are connected at four corners by the corner members 22, thereby forming a substantially rectangular four-sided frame frame. Inside the frame, a plurality of reinforcing frame portions 25a, 25b, and 25c are butted against each other in the front, rear, left, and right directions, and are joined by bolts, rivets, welding, etc., thereby forming a lattice-like structure. For the reinforcing frame parts 25a, 25b, and 25c, for example, an angular hollow pipe made of aluminum alloy or a plate with an uneven cross section can be used. Here, by joining 12 reinforcing frame sections 25c that are short in the left-right direction to two reinforcing frame sections 25a and 25b that are long in the front-back direction, three rows in the front-back direction as seen in a plan view, A plurality of rectangular spaces 26 are formed which are divided into five rows in the left-right direction. Note that, among the plurality of spaces 26, the spaces 26 other than the spaces 26 that are partially closed from below by mounting members 27A and 27B, which will be described later, penetrate in the vertical direction.

The traveling section 30 travels on the traveling surface while supporting the load of the truck main body 20 and the objects to be transported. The running section 30 has a plurality of casters 31A and 31B. As shown in FIG. 3, the traveling section 30 includes four casters 31A disposed at the four corners of the trolley body section 20, and two casters 31B disposed at the center in the front-rear direction and spaced apart from each other in the left and right directions. It has two casters.

The casters 31A are attached to the truck body 20 via attachment members 27A. The mounting member 27A is coupled to each frame portion and each reinforcing frame portion via rivets 28 or screws so as to close the space 26 on the front side and both left and right sides and the space 26 on the rear side and both left and right sides from below. . The mounting member 27A is a metal plate made of, for example, an aluminum alloy and has a rectangular corner cut out. Since the casters 31A are arranged at the four corners of the lower surface of the truck body 20, the transportation truck 10 can be run in a stable state.
Moreover, the caster 31B is attached to the truck main body part 20 via the attachment member 27B. The mounting member 27B is coupled to each frame portion or each reinforcing frame portion via rivets 28 or screws so as to close the space 26 at the center in the front-rear direction and on both sides in the left-right direction from below. The mounting member 27B is a metal plate made of, for example, an aluminum alloy and has a rectangular shape with adjacent corners cut out. Since the casters 31B are arranged apart from each other in the left and right directions at the center of the truck body 20 in the front-rear direction, the transportation truck 10 can run without tilting even if the objects to be transported are loaded unevenly on the mounting plate 29.

Further, the casters 31A and 31B are rotatable around a pivot axis O, which is a vertical axis. Moreover, the caster 31A is a caster with a brake that can apply or release the brake according to the user's operation. On the other hand, the caster 31B located at the center is a caster without a brake. The four casters 31A, which are casters with brakes, each have a brake pedal 32 that can swing up and down. To apply the brake on the caster 31A, the user operates the brake pedal 32 by pressing downward with his or her foot. The brake pedal 32 swings downward against the urging force of an unillustrated urging member, etc., so that the brake pedal 32 firmly presses the outer peripheral surface of the wheel directly or indirectly. is applied. Further, the brake pedal 32 functions as a stopper because the brake is maintained in an applied state.

The hand pushing member 40 is a member that is pushed by the user's hand when moving the transport trolley 10. The hand pushing member 40 has an elongated shape with a length of about 1000 mm. The hand pushing member 40 is attached to the trolley main body 20 by inserting its lower end into the insertion hole 23 of the corner member 22, and is detachable from the trolley main body 20 by pulling it out from the insertion hole 23. The transportation cart 10 of this embodiment has four push members 40 (40A to 40D), which are inserted into the insertion holes 23 of each corner member 22. Here, the hand push member 40A is located on the right side and rear side, the hand push member 40B is located on the left side and rear side, the hand push member 40C is located on the right side and front side, and the hand push member 40D is located on the left side and front side. Note that if there is no need to use the hand-pushing members 40A to 40D separately, they will be simply referred to as the hand-pushing member 40. Furthermore, it is not necessary to mount all four hand-push members 40A to 40D on the trolley main body 20, and only one, two, or three hand-push members 40 may be mounted on the trolley main body 20.

The hand-pushing member 40 includes a main body member 41, a protection member 43, and a reinforcing member 44.
The main body member 41 is an elongated pipe-like member or a rod-like member. The main body member 41 is made of, for example, an aluminum alloy and is formed by extrusion molding in order to reduce the weight. Further, the main body member 41 is a circular tube having an outer diameter of, for example, 42 to 45 mm (here, 44 mm), which is an outer diameter that is easy for a user to grasp.

The protective member 43 protects the user's hands and serves as an index indicating the maximum loading height when loading objects. The protection member 43 is fixed to the upper side of the main body member 41 at a predetermined distance from the upper end with bolts, rivets, or the like. In addition, the range from the upper end of the main body member 41 to the upper end of the protection member 43 in the main body member 41 is the grip part 42 which a user grips with a hand when moving the transportation trolley 10. The protective member 43 has a shape that protrudes outward from the outer circumferential surface (outer surface) of the grip portion 42 to protect the hand of the user who grips the grip portion 42 . The protection member 43 of this embodiment has a substantially circular shape in plan view. The radial dimension of the protective member 43 is such that the user's hand (for example, the back of the hand) holding the grip portion 42 does not overlap and protrude from the protective member 43 when viewed from above (it fits inside the outline when viewed from above). Set to dimensions. Specifically, the radius dimension of the protective member 43 is preferably in the range of 50 to 80 mm, more preferably in the range of 55 to 70 mm.

The reinforcing member 44 is fixed to the lower end of the main body member 41, specifically, at a position close to the lower end with bolts, rivets, or the like. The reinforcing member 44 reinforces the strength of the main body member 41 and suppresses rattling between the main body member 41 and the insertion hole 23 when the main body member 41 is inserted into the insertion hole 23 of the corner member 22. The reinforcing member 44 is made of, for example, an aluminum alloy.

Moreover, the trolley main body part 20 of this embodiment has two mounting parts 50A and 50B on which objects to be transported are loaded. The mounting parts 50A and 50B are arranged so as to straddle the right frame part 21c and the left frame part 21d, respectively (see FIG. 1). Moreover, the mounting parts 50A and 50B are arranged so as to overlap the upper surface of a guide part 60A and the upper surface of a guide part 60B, which will be described later, respectively. Furthermore, the placing section 50A is located on the front side of the placing section 50B, and the placing section 50B is located on the rear side of the placing section 50A. The placing portion 50A and the placing portion 50B are spaced apart from each other in the front-rear direction. The transported object is loaded onto the trolley body 20 by placing the transported object across the upper surface of the mounting section 50A and the upper surface of the mounting section 50B. The mounting parts 50A and 50B have an elongated shape and are arranged along the left-right direction substantially parallel to the front frame part 21a and the rear frame part 21b. The mounting parts 50A and 50B overlap with a part of the right frame part 21c and a part of the left frame part 21d, respectively, when viewed in a plan view.

The configuration of the mounting section 50A will be explained. Note that the mounting section 50B has the same configuration as the mounting section 50A, and is given the same reference numeral, and the description thereof will be omitted as appropriate.
The mounting section 50A includes a mounting member 51 and a buffer member 55.
FIG. 5 is a diagram showing an example of the configuration of the mounting section 50A. FIG. 5(a) is a perspective view showing the configuration of the mounting section 50A, and FIG. 5(b) is a diagram of the mounting section 50A viewed from the front side.

The mounting member 51 is an elongated member that supports the load of the transported object. Moreover, the mounting member 51 is a member for forming a gap below the transported object placed across the mounting section 50A and the mounting section 50B. The mounting member 51 is made of, for example, an aluminum alloy formed by extrusion molding. The mounting member 51 has a main body portion 52 and collar portions 54a and 54b. The main body portion 52 has a substantially trapezoidal outer shape when viewed along the longitudinal direction (when viewed along the left-right direction). Moreover, the main body part 52 has a hollow shape along the longitudinal direction, and is reinforced by having ribs 53 inside. The flange portion 54a has a substantially plate shape that protrudes from the front lower end of the main body portion 52 toward the front side. The flange portion 54b has a substantially plate shape that protrudes from the lower end of the rear side of the main body portion 52 toward the rear side. The main body portion 52 and the collar portions 54a and 54b have lower surfaces that are flush with each other and are flat surfaces. In addition, holes 57 into which bolt members 58 are inserted as positioning portions are formed in the right and left ends of the flanges 54a and 54b, respectively, so as to penetrate in the vertical direction (see FIG. 5(b)). Therefore, four bolt members 58 are inserted into the mounting portion 50A along the vertical direction.

The buffer member 55 is an elongated member that comes into contact with the transported object placed on the placing portion 50A. The buffer member 55 is made of, for example, soft synthetic resin or rubber. The buffer member 55 is attached to the mounting member 51 so as to cover the upper surface of the mounting member 51. Moreover, a plurality of protrusions 56 are formed on the upper surface of the buffer member 55 along the longitudinal direction in order to prevent the loaded object from sliding in the surface direction.

The placing portion 50A and the placing portion 50B are capable of adjusting the interval between the placing portions, specifically, the distance between the placing portions in the front-rear direction. In the present embodiment, the mounting parts 50A and 50B are slidable in the front-rear direction with respect to a substantially rectangular frame part consisting of the front frame part 21a, the rear frame part 21b, the right frame part 21c, and the left frame part 21d. be.

The trolley main body 20 of this embodiment has two guide parts 60A and 60B that guide the sliding of the mounting parts 50A and 50B in the front and back direction. The guide portion 60A is fixed to the upper surface of the right frame portion 21c, and the guide portion 60B is fixed to the upper surface of the left frame portion 21d. The guide parts 60A and 60B are elongated and are arranged along the front-rear direction substantially parallel to the right frame part 21c and the left frame part 21d.

The configuration of the guide section 60B will be explained with reference to FIG. 5. Note that the guide section 60A has the same configuration as the guide section 60B, and a description thereof will be omitted as appropriate.
The guide portion 60B is a member that guides the placement portions 50A and 50B in the front-rear direction. The guide portion 60B is made of, for example, an aluminum alloy formed by extrusion molding. The guide portion 60B has a substantially rectangular outer shape when viewed along the longitudinal direction (when viewed along the front-rear direction) and is hollow inside. Further, the guide portion 60B has a slit 61 along the longitudinal direction on the upper side. Inside the guide portion 60B, a substantially plate-shaped nut member 62 serving as a positioning portion is arranged so as to be slidable along the longitudinal direction of the guide portion 60B. The bolt members 58 inserted into the left end portions of the flanges 54a and 54b of the mounting section 50A pass through the slits 61 of the guide section 60B, and are screwed into two nut members 62 located spaced apart from each other in the guide section 60B. be done. Note that the nut member 62 and the bolt member 58 are configured to be unable to separate from each other by crimping the tip of the threaded portion of the bolt member 58. Similarly, the bolt members 58 inserted into the right end portions of the flanges 54a and 54b of the placing section 50A are also inserted into the guide section 60A through the slits 61 of the guide section 60A, and are inserted into the two nut members located apart from each other in the front and rear. It is screwed together with 62. Note that ribs for reinforcement may be formed inside the guide portions 60A, 60B.

According to such a structure of the trolley main body part 20, the mounting parts 50A and 50B are guided by the guide parts 60A and 60B, respectively, and can slide along the front-back direction. For example, when the user slides the mounting section 50A, the user loosens the threaded engagement between the bolt member 58 and the nut member 62 and moves the mounting section 50A in the front-rear direction. At this time, the two nut members 62 in the guide part 60A slide in the guide part 60A, and the two nut members 62 in the guide part 60B slide in the guide part 60B, so that the placing part 50A It slides in the front and back direction while maintaining the state along the left and right direction without coming off from the frame part. The user tightens the threading between the bolt member 58 and the nut member 62 at any desired position, thereby fixing the position relative to the guide parts 60A, 60B. Similarly, the mounting part 50B is also slid in the front and back direction while maintaining the state along the left and right direction without detaching from the frame part, and the position is fixed with respect to the guide parts 60A and 60B at any desired position. be done. By sliding the placing parts 50A and 50B in the front-back direction in this manner, the interval between the placing parts 50A and 50B, that is, the interval between the placing parts can be adjusted.

The receivers 50A and 50B shown in FIG. 4A show a state in which the interval between the receivers is adjusted to a distance L1. In FIG. 4(a), the mounting section 50A is located above the front caster 31A, and the mounting section 50B is located above the rear caster 31A, and the spacing between the mounting sections will be explained later. It is longer than the distance L2 shown in 4(b). The loading portions 50A and 50B adjusted in this manner are suitable for loading objects G1 (see the two-dot chain line) that are long in the front-rear direction. Further, since the pair of claws C of the forklift can be inserted between the placing portion 50A and the placing portion 50B, only the object G1 to be transported can be lifted by the forklift. On the other hand, when lifting the transport cart 10 with a forklift, insert one of the pair of claws C between the front caster 31A and the center caster 31B, and insert the other claw C into the rear caster 31A. and the center caster 31B. By raising the carriage 10 with the pair of claws C inserted, the pair of claws C come into contact with the lower surface of the trolley body 20, and the transport trolley 10 can be lifted. Note that the spacing between the claws of the pair of claws C can be the same when lifting only the transported object G1 and when lifting the transport trolley 10, and even if the spacing is the same, the claws C may It will not interfere with the casters, etc. Therefore, it is possible to reduce the effort of changing the spacing between the claws on the forklift side when lifting the transported object G1 or the transport cart 10.

The receivers 50A and 50B shown in FIG. 4B show a state in which the interval between the receivers is adjusted to a distance L2. In FIG. 4(b), the placing portion 50A and the placing portion 50B are located closer to the central caster 31B, and the interval between the placing portions is shorter than the distance L1 shown in FIG. 4(a). The loading sections 50A and 50B adjusted in this manner are suitable for loading a short article G2 (see the two-dot chain line) in the front-rear direction. Moreover, since the pair of claws C of the forklift can be inserted into the front side of the placing part 50A and the rear side of the placing part 50B, only the object G2 to be transported can be lifted by the forklift. On the other hand, when lifting the transportation vehicle 10 with a forklift, the transportation vehicle 10 can be lifted in the same manner as shown in FIG. 4(a). Further, the spacing between the claws of the pair of claws C can be made the same when lifting only the transported object G2 and when lifting the transporting trolley 10, and even if the spacing is the same, the claws C can It will not interfere with the casters, etc. Therefore, it is possible to reduce the effort of changing the spacing between the claws on the forklift side when lifting the transported object G2 or the transport cart 10.

In addition, the transport trolley 10 of this embodiment can be stacked one above the other.
FIG. 6 is a side view showing a state in which the transport carts 10 are stacked. By stacking the casters 31A, 31B of the upper transport vehicle 10 on the mounting members 27A, 27B of the lower transport vehicle 10, it is possible to stabilize the casters and stack them at a low height.
The receivers 50A and 50B shown in FIG. 6 are shown in a state where the interval between the receivers is adjusted to a distance L3. In FIG. 6, the interval between the placing parts 50A and 50B is shorter than the distance L1 shown in FIG. 4(a), and longer than the distance L2 shown in FIG. 4(b). Specifically, the mounting parts 50A and 50B are located above the space 26 where the mounting members 27A and 27B are not mounted. Alternatively, the mounting portion 50A is located between the front caster 31A and the center caster 31B of the upper transportation vehicle 10, and the mounting portion 50B is located between the rear caster 31A and the center caster 31B of the upper transportation vehicle 10. It is located between. Since the mounting parts 50A and 50B adjusted in this way do not interfere with the casters 31A and 31B of the upper transportation vehicle 10, the transportation vehicles 10 can be stacked.

As described above, according to the present embodiment, since the intervals between the placing parts 50A and 50B can be adjusted, it is possible to easily load various types of objects, such as long or short objects, for example. Can be done.
In addition, in this embodiment, although the case where the trolley|bogie main body part 20 had two mounting parts 50A and 50B was demonstrated, it is not restricted to this case, You may have three or more mounting parts. For example, a third receiver can be placed between receivers 50A and 50B.
Furthermore, in the present embodiment, a case has been described in which the two placing parts 50A and 50B are both slidable, but this is not the only case, and at least one of the plurality of placing parts can be adjusted. The other mounting parts may be fixed so that they cannot be adjusted by the user.

Further, in the present embodiment, a case has been described in which the guide portion 60A is fixed to the upper surface of the right frame portion 21c and the guide portion 60B is fixed to the upper surface of the left frame portion 21d, but the present invention is not limited to this case. For example, the guide portion 60A may be fixed to the side surface of the right frame portion 21c or the reinforcing frame portions 25a, 25b, and the guide portion 60B may be fixed to the side surface of the left frame portion 21d or the reinforcing frame portions 25a, 25b. In this case, the lower surfaces of the placing parts 50A and 50B can be configured to be in contact with the upper surface of the right frame part 21c and the upper surface of the left frame part 21d.
Alternatively, the openings at both longitudinal ends of the guide parts 60A, 60B may be closed to prevent the nut member 62 from slipping out from the ends of the guide parts 60A, 60B.

<Second embodiment>
Next, the transport trolley 11 of the second embodiment will be explained.
FIG. 7 is a perspective view of the transport truck 11 of the second embodiment. FIG. 8 is a plan view of the transport vehicle 11. FIG. 9 is a side view of the transport vehicle 11. In addition, the same structure as the transport trolley 10 of 1st Embodiment is attached|subjected with the same code|symbol, and description is abbreviate|omitted suitably.

The trolley main body 20 of this embodiment has two mounting parts 70A and 70B on which objects to be transported are loaded. The mounting parts 70A and 70B are arranged between the right frame part 21c and the left frame part 21d, respectively, when viewed in plan (see FIG. 8). Specifically, the placing parts 70A and 70B are arranged on the upper surface of the reinforcing frame part 25c via connecting members 73, which will be described later. Furthermore, the placing section 70A is located on the front side of the placing section 70B, and the placing section 70B is located on the rear side of the placing section 70A. 70 A of mounting parts and the mounting part 70B are arrange|positioned with a space|interval spaced back and forth. The transported object is loaded onto the trolley body 20 by placing the transported object across the upper surface of the mounting section 70A and the upper surface of the mounting section 70B. The mounting parts 70A and 70B are elongated and are arranged along the left-right direction substantially parallel to the front frame part 21a and the rear frame part 21b.

The configuration of the mounting section 70A will be described with reference to the enlarged view shown in FIG. 7. Note that the mounting section 70B has the same configuration as the mounting section 70A, is given the same reference numeral, and a description thereof will be omitted as appropriate.
The mounting section 70A includes a mounting member 71 and a buffer member 72.

The mounting member 71 is an elongated member that supports the load of the transported object. Moreover, the mounting member 71 is a member for forming a gap below the transported object placed across the mounting portion 70A and the mounting portion 70B. The mounting member 71 is made of, for example, an aluminum alloy formed by extrusion molding. The mounting member 71 has a substantially rectangular outer shape when viewed along the longitudinal direction (when viewed along the left-right direction), and is hollow along the longitudinal direction.

The buffer member 72 is an elongated member that comes into contact with the transported object placed on the placing portion 70A. The buffer member 72 is made of, for example, soft synthetic resin or rubber. The buffer member 72 is attached to the mounting member 71 so as to cover the upper surface of the mounting member 71. Moreover, a plurality of protrusions are formed on the upper surface of the buffer member 72 along the longitudinal direction in order to prevent the loaded object from sliding in the surface direction.

Here, the mounting portion 70A is disposed via a connecting member 73 on three reinforcing frame portions 25c located in series at the frontmost side among the reinforcing frame portions 25c along the left-right direction. In addition, in FIG. 7, the three reinforcing frame parts 25c located at the frontmost side are hidden by the connecting member 73. In this embodiment, one connecting member 73 is connected to one of the reinforcing frame parts 25c. Therefore, the mounting portion 70A is connected to the reinforcing frame portion 25c via the three connecting members 73. Note that the mounting portion 70A and the three connecting members 73 are fixed in advance using bolts, rivets, welding, or the like so that they cannot be separated. The connecting member 73 is made of, for example, an aluminum alloy formed by extrusion molding. The connecting member 73 is approximately H-shaped when viewed along the longitudinal direction (when viewed along the left-right direction), and has a first connecting portion 74a on the upper side and a second connecting portion 74b on the lower side. has. The first connecting portion 74a is connected to the placing portion 70A by fitting the placing portion 70A into the first connecting portion 74a. The second connecting portion 74b is connected to the reinforcing frame portion 25c by fitting the reinforcing frame portion 25c into the reinforcing frame portion 25c. Note that the mounting portion 70B is arranged via a connecting member 73 on three reinforcing frame portions 25c located in series at the rearmost side among the reinforcing frame portions 25c along the left-right direction.

The placement section 70A and the placement section 70B are capable of adjusting the interval between the placement sections, specifically, the distance between the placement sections in the front-rear direction. In this embodiment, the distance between the placing parts 70A and 70B in the front-rear direction can be adjusted by changing the reinforcing frame part 25c that is connected via the connecting member 73.

For example, when the user changes the position of the placing section 70A from the three reinforcing frame sections 25c located in series at the frontmost side to the three reinforcing frame sections 25c located second from the front in series, the three reinforcing frame sections 25c The connecting member 73 is removed from the frontmost reinforcing frame section 25c and connected to the three reinforcing frame sections 25c located second from the front. At this time, the user may fix the three connecting members 73 and the three reinforcing frame parts 25c using bolts, rivets, or the like, if necessary. Similarly, when the user changes the position of the placement part 70B from the three reinforcing frame parts 25c located in series at the rearmost side to the three reinforcing frame parts 25c located in series second from the rear, The three connecting members 73 are removed from the rearmost reinforcing frame section 25c and connected to the three reinforcing frame sections 25c located second from the rear.

The receivers 70A and 70B shown in FIG. 9A show a state in which the interval between the receivers is adjusted to a distance L4. In FIG. 9(a), the placing portion 70A is located above the frontmost reinforcing frame portion 25c, the placing portion 70B is located above the rearmost reinforcing frame portion 25c, and the placing portions The interval is longer than the distance L5 shown in FIG. 9(b), which will be described later. The loading portions 70A and 70B adjusted in this manner are suitable for loading objects G3 (see the two-dot chain line) that are long in the front-rear direction. Further, since the pair of claws C of the forklift can be inserted between the placing portion 70A and the placing portion 70B, only the object G3 to be transported can be lifted by the forklift. On the other hand, when lifting the transport cart 11 with a forklift, insert one of the pair of claws C between the front caster 31A and the center caster 31B, and insert the other claw C into the rear caster 31A. and the center caster 31B. By lifting the carriage 11 with the pair of claws C inserted, the pair of claws C come into contact with the lower surface of the trolley body 20, and the transport trolley 11 can be lifted.

The receivers 70A and 70B shown in FIG. 9B show a state in which the interval between the receivers is adjusted to a distance L5. In FIG. 9(b), the mounting section 70A is located above the second reinforcing frame section 25c from the front, the mounting section 70B is located above the second reinforcing frame section 25c from the back, and the mounting section 70B is located above the second reinforcing frame section 25c from the rear. The distance between the mounting parts is shorter than the distance L4 shown in FIG. 9(a). The loading portions 70A and 70B adjusted in this manner are suitable for loading a short cargo G4 (see the two-dot chain line) in the front-rear direction. Moreover, since the pair of claws C of the forklift can be inserted into the front side of the placing part 70A and the rear side of the placing part 70B, only the object G4 to be transported can be lifted by the forklift. On the other hand, when lifting the transport vehicle 11 with a forklift, the transport vehicle 11 can be lifted in the same manner as shown in FIG. 9(a).

Furthermore, the transport cart 11 of this embodiment can be stacked one above the other.
FIG. 10 is a side view showing a state in which the transport carts 11 are stacked. By stacking the casters 31A, 31B of the upper transport vehicle 11 on the mounting members 27A, 27B of the lower transport vehicle 11, it is possible to stabilize the casters and stack them at a low height.
The receivers 70A and 70B shown in FIG. 10 are shown in a state where the interval between the receivers is adjusted to a distance L4. Note that, among the casters 31A and 31B of the upper transport vehicle 11, the front caster 31A is rotated by 90 degrees with respect to the rotation axis O, thereby avoiding interference with the mounting portion 70A. The mounting portions 70A and 70B adjusted in this manner do not interfere with the casters 31A and 31B of the upper transportation vehicle 11, so that the transportation vehicles 11 can be stacked.

As described above, according to the present embodiment, since the intervals between the placing parts 70A and 70B can be adjusted, it is possible to easily load various types of objects, such as long or short objects, for example. Can be done.
In addition, although this embodiment demonstrated the case where the trolley|bogie main body part 20 has two mounting parts 70A and 70B, it is not restricted to this case, You may have three or more mounting parts. For example, a third receiver can be placed between receivers 70A and 70B.
Further, in the present embodiment, the case has been described in which the two placing parts 70A and 70B are both adjustable in the front and back direction, but the present invention is not limited to this case, and at least one of the plurality of placing parts may be made adjustable, and other placement parts may be fixed so that they cannot be adjusted by the user.
Further, in the present embodiment, the case has been described in which the two mounting parts 70A and 70B are connected to the reinforcing frame part 25c, but the present invention is not limited to this case. good.

<Modified example>
In the first embodiment described above, the mounting parts 50A, 50B can be placed at any position relative to the guide parts 60A, 60B by tightening the threaded connection between the bolt member 58 and the nut member 62. Although the case where it is fixed has been described, it is not limited to this case. This modification is configured so that the sliding placement parts 80A and 80B can be positioned by inserting a removable pin 81 into holes 82 formed in the right frame part 21c and the left frame part 21d. .

FIG. 11 is a diagram showing an example of the configuration of a mounting section 80A of a modified example. Note that configurations similar to those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Further, the mounting section 80B has the same configuration as the mounting section 80A, and a description thereof will be omitted as appropriate.
In this modification, guide parts 60A and 60B that guide the sliding of the mounting part 80A in the front-back direction are fixed to the upper surfaces of the reinforcing frame parts 25a and 25b, respectively. Note that, similarly to the first embodiment, the bolt members 58 inserted into the flanges 54a and 54b of the mounting portion 80A pass through the slits 61 of the guide portions 60A and 60B, and are separated back and forth into the guide portions 60A and 60B. It is screwed together with two nut members 62 located at the same position. However, in this modification, there is no need to tighten and position the threaded connection between the bolt member 58 and the nut member 62, and the threaded connection between the bolt member 58 and the nut member 62 may remain loosened.

In this modification, the carrier has a pin 81 as a positioning part. The pin 81 is inserted into the hole 82 formed in the upper surface of the right frame part 21c and the left frame part 21d through the hole 57 of the collar part 54a of the mounting part 80A. Note that a plurality of holes 82 are formed on the upper surfaces of the right frame portion 21c and the left frame portion 21d at predetermined intervals in the front and rear.

For example, when the user slides the mounting section 80A, the pin 81 is pulled out from the hole 57 and the hole 82, and the mounting section 80A is moved in the front-rear direction. At this time, the two nut members 62 in the guide part 60A slide in the guide part 60A, and the two nut members 62 in the guide part 60B slide in the guide part 60B, so that the placing part 80A It slides in the front and back direction while maintaining the state along the left and right direction without coming off from the frame part. The user connects the hole 82 close to the desired position with the hole 57 of the mounting section 80A, and then inserts the pin 81 into the hole 57 and the hole 82, so that the mounting section 80A is connected to the right side frame. It is positioned relative to the portion 21c and the left frame portion 21d. Similarly, the mounting portion 80B is also positioned relative to the right frame portion 21c and the left frame portion 21d. By sliding the placing parts 80A and 80B in the front-back direction in this manner, the interval between the placing parts 80A and 80B, that is, the interval between the placing parts can be adjusted.

Although the present invention has been described above along with the embodiments described above, the present invention is not limited only to the embodiments described above, and changes can be made within the scope of the present invention. They can be combined as appropriate.

10, 11: Transport cart 20: Cart main body 21a: Right frame portion 21b: Left frame portion 21c: Front frame portion 21d: Rear frame portion 30: Running portion 50A, 50B: Placement portion 70A, 70B: Placement portion 80A, 80B: Placement section 60A, 60B: Guide section

Claims (1)

a trolley body having a plurality of loading parts and a plurality of frame parts on which objects to be transported are loaded;
A transporting trolley comprising a running section attached to the trolley main body and running on a running surface,
When viewed from above, the longitudinal direction of the trolley main body is defined as front and back, and the lateral direction of the trolley main body is defined as left and right,
The plurality of placing parts are
They are arranged along the left and right directions,
The truck main body is
It has a guide part provided in a frame part arranged along the front-rear direction among the plurality of frame parts,
A nut member screwed onto a bolt member of at least one of the plurality of mounting parts is guided within the guide part, so that the one mounting part slides in the front-rear direction, and the one mounting part slides in the front and rear direction. The distance between the mounting parts in the front and back direction can be adjusted,
By adjusting the interval between the mounting parts, the one mounting part can be placed on either of the front frame part located at the front end and the rear frame part located at the rear end among the plurality of frame parts. A transportation trolley characterized in that its position can be changed relative to the other vehicle.

Images