JP7411976B2 - Hand units and transport trolleys - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hand-pushed unit and a transport trolley. In particular, it relates to a hand-pushed unit for a user to push by hand when moving a transport cart.

Some transportation carts used at construction sites and the like have a structure in which a single pipe can be inserted into the four corners of the main body of the transportation cart. For example, Patent Document 1 discloses a transportation cart that is provided with corner members at four corners into which a single tube can be inserted as a push rod. With this configuration, the user of the carrier can use the single tube inserted into the main body of the carrier as a push rod when moving the carrier.

Japanese Patent Application Publication No. 2010-159054

In the push rod disclosed in Patent Document 1, the part that the user grips with his or her hand is fixed, and the part that the user grips with his or her hand cannot be changed.
The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to enable the user to change the part to be gripped by the hand.

The present invention provides a support member that is removably attached to a main body of a trolley loaded with objects and run by a running section, and a support member that is detachably attached to the support member so that a user can a hand-pushing member for pushing by hand; the hand-pushing member is an attachment into which the supporting member can be inserted, and the upper end of the supporting member penetrates upward; It has a mounting part provided with a hole, and the support member includes a rod-shaped main body part, a plate-shaped support part that supports the mounting part by coming into contact with a lower surface of the mounting part, and a lower end of the support part. and a mounting part that is integrally formed with the main body and is fixed to the main body in order to attach the support to the main body .

According to the present invention, it is possible for the user to change the part that the user grasps with his/her hand.

It is a perspective view showing an example of a transportation truck of a 1st embodiment. It is a side view showing an example of a transportation truck. FIG. 3 is a rear view of the transport vehicle seen from the rear side. It is a top view showing an example of a transportation truck. It is a figure showing an example of a push member, a support member, and a corner member. It is a figure showing an example of a reinforcing member. It is a perspective view showing an example of a transportation trolley of a 2nd embodiment.

Below, a hand push member and a transport cart according to the present embodiment will be described with reference to the drawings. For convenience of explanation, the vertical direction of the hand push member and the transport cart shown in each embodiment below is based on the direction in which the support member and the hand push member are attached to the main body of the cart. Further, the front-rear direction of the transport cart is the longitudinal direction of the transport cart, and the left-right direction is the lateral direction of the transport cart. However, the transportation cart of this embodiment can run in any direction including front, back, left, and right.

<First embodiment>
FIG. 1 is a perspective view showing an example of a transport vehicle 1 according to the first embodiment. FIG. 2 is a side view showing an example of the transport vehicle 1. FIG. FIG. 3 is a rear view of the transport vehicle 1 seen from the rear side. FIG. 4 is a plan view showing an example of the transport vehicle 1. As shown in FIG. Note that FIG. 1 shows the state before the support member 40 and the hand push member 80 are attached to the trolley main body 20, and FIGS. The state after
The transportation trolley 1 includes a trolley body 20, a running section 30, support members 40 (40A, 40B), and a hand push member 80.

The trolley main body 20 is constructed by connecting a plurality of frame parts, etc., and loads objects to be transported. The trolley main body 20 has a substantially rectangular shape with the longitudinal direction extending in the front-rear direction and the lateral direction extending in the left-right direction in plan view. The trolley 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) 25, a mounting plate 26, etc. .

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 that closes the bottom (see FIGS. 4 and 5). The support member 40 is inserted into the insertion hole 23 of the corner member 22 . The lower end of the support 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 25 are aligned in the front, rear, left and right directions and are connected using bolts, rivets, welding, etc., thereby forming a lattice-like structure. For the reinforcing frame portion 25, for example, an angular hollow pipe made of aluminum alloy, a plate with an uneven cross section, or the like can be used.
The loading plate 26 is a flat plate on which objects to be transported are loaded. The mounting plate 26 is coupled to each frame portion and each reinforcing frame portion 25 via rivets or bolts.

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 31 and 32. In this embodiment, the traveling section 30 has six casters: four casters 31 disposed at the four corners of the truck main body section 20, and two casters 32 disposed at the center in the front-rear direction and spaced apart from each other in the left and right directions. have Casters 31 and 32 have wheels 33 and fork members 34 that rotatably support wheels 33. The casters 31 and 32 are each attached to the truck body 20 via attachment plates. The casters 31 and 32 are each rotatable around a vertical axis O (see FIGS. 2 and 3). Note that the four casters 31 are casters with brakes, and the two casters 32 are casters without brakes. The four casters 31, which are casters with brakes, each have a brake pedal 35 that can swing up and down.

The support member 40 removably supports the hand push member 80. Further, when the support member 40 does not support the hand push member 80, it functions as a second hand push member for the user to push with his/her hand when moving the transportation trolley 1.
The support member 40 has an elongated shape with a length of about 1000 mm. The support member 40 is attached to the truck main body 20 by inserting its lower end into the insertion hole 23 of the corner member 22, and is detachable from the truck main body 20 by pulling it out from the insertion hole 23. The transportation cart 1 of this embodiment has two support members 40 (40A, 40B), which are inserted into the insertion holes 23 of two adjacent corner members 22. Here, the support member 40A is on the right and rear side, and the support member 40B is
is located on the left and rear side. The support member 40A and the support member 40B have substantially the same configuration. Note that if there is no need to use the support members 40A and 40B separately, they will be simply referred to as the support member 40.

FIG. 5 is a rear view showing an example of the hand push member 80, the support member 40 (40B), and the corner member 22.
The support member 40 includes a main body member 41 as a main body, a protection member 50, and a reinforcing member 60.
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 has a substantially circular shape with an outer diameter of, for example, 40 to 50 mm (approximately 44 mm here), and has an outer diameter that is easy for a user to grasp. Moreover, the inside of the main body member 41 is reinforced in a cross shape to improve strength. However, the main body member 41 is not limited to the dimensions and shape described above, and various rod-shaped members, tubular members, single pipes (carbon steel pipes for general structures as specified in JIS G 3444), etc. can be applied. .

The protection member 50 protects the user's hand when the support member 40 is functioning as a second hand push member (when the support member 40 does not support the hand push member 80).
The protection member 50 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. The protection member 50 of this embodiment is preferably fixed at a position 100 to 200 mm away from the upper end of the main body member 41, and more preferably 120 to 180 mm away. It should be noted that the range from the upper end of the main body member 41 to the upper end of the protective member 50 of the main body member 41 is such that when the support member 40 is functioning as a second push member, the user runs the transport cart 1. This is a support side grip part 42 that is grasped by hand when the robot is moved. The longitudinal direction of the support-side grip portion 42 is the same as the longitudinal direction of the main body member 41, and specifically, the longitudinal direction is substantially the vertical direction.

Moreover, the protection member 50 has a protection part 51 as a support part and a mounting part 52, which are integrally formed. Furthermore, the protection member 50 has a mounting hole that opens upward and downward in order to insert the main body member 41 therein. The protection member 50 is made of a resin material such as polyethylene, and is integrally formed by injection molding. In order to improve visibility, the protective member 50 includes the trolley main body 20, specifically, the front frame 21a, the rear frame 21b, the right frame 21c, the left frame 21d, the main body 41, and the push member 80. marked with different colors. For example, when the front frame part 21a, the rear frame part 21b, the right frame part 21c, the left frame part 21d, the main body member 41, and the hand push member 80 are of a metallic color such as silver, they are different from the metallic color, for example. It may be one of the three primary colors such as red, green, or blue, or it may be orange, yellow, or the like.

The protection portion 51 has a shape that protrudes outward from the outer peripheral surface (outer surface) of the support grip portion 42 to protect the hand of the user who grips the support grip portion 42 . The protection portion 51 has a substantially disk-like shape. Moreover, the protection part 51 has a substantially circular shape in plan view. The radius dimension of the protective part 51 is such that the user's hand (for example, the back of the hand) grasping the supporting grip part 42 does not overlap and protrude from the protective part 51 (inside the outline in a plan view). (fits) dimensions. Specifically, the radius dimension of the protective portion 51 is preferably in the range of 50 to 80 mm, more preferably in the range of 55 to 70 mm. Further, the outer diameter of the protective portion 51 is preferably in the range of 100 to 160 mm, more preferably in the range of 110 to 140 mm. Moreover, the protection part 51 has a constant thickness. Specifically, the vertical dimension of the protective portion 51 is preferably in the range of 5 to 30 mm, more preferably in the range of 10 to 20 mm. Note that the dimensions of the protective portion 51 are not particularly limited. Moreover, the shape of the protection part 51 may be any shape as long as it can protect the hand of the user who is gripping the support side grip part 42. In plan view, the protection part 51 has a substantially triangular shape (including a substantially regular triangle), a substantially quadrangular shape (including a substantially regular triangle), a substantially pentagonal shape (including a substantially regular triangle), a substantially hexagonal shape (including a substantially regular triangle), It may be a substantially polygonal shape (including a substantially regular polygon) such as a substantially heptagon (including a substantially regular triangle) or a substantially octagon (including a substantially regular octagon). Further, the protection portion 51 may have a substantially circular shape with a partially cut out shape (such as a substantially semicircular shape or a substantially fan shape) when viewed from above. Moreover, the protection part 51 may have a substantially polygonal shape with a part cut out in plan view. Note that the protection portion 51 serves as an index indicating the maximum loading height when loading objects.

The attachment part 52 has a cylindrical shape that integrally extends from the lower end of the protection part 51 and has a larger outer diameter than the main body member 41.
The protection member 50 is attached to the main body member 41 by inserting the main body member 41 into the mounting hole of the protection member 50 and fixing the mounting part 52 to the main body member 41 at a predetermined position from the upper end of the main body member 41 with bolts, rivets, etc. can be fixed to.

The reinforcing member 60 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 60 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 60 is made of, for example, an aluminum alloy.
FIG. 6(a) is a diagram showing an example of the reinforcing member 60, and is a sectional view taken along the line II shown in FIG. FIG. 6(b) is a diagram showing an example of the insertion hole 23 of the corner member 22.

As shown in FIG. 6(a), the reinforcing member 60 has a substantially cylindrical shape and has an outer diameter larger than the outer diameter of the main body member 41. As shown in FIG. The reinforcing member 60 has a plurality of (two in this case) bulging portions 61a and 61b in which a portion of the outer circumferential surface bulges in the radial direction. The bulging portions 61a and 61b protrude in the radial direction via a gentle slope portion 62. The reinforcing member 60 has a mounting hole 63 that opens upward and downward in order to insert the main body member 41 therein. Therefore, by inserting the main body member 41 into the mounting hole 63 and fixing the reinforcing member 60 to the main body member 41 at a predetermined position from the lower end of the main body member 41 with bolts, rivets, etc., the reinforcing member 60 can be attached to the main body member 41. Can be fixed.

As shown in FIG. 6(b), the insertion hole 23 of the corner member 22 into which the reinforcing member 60 is inserted has flat surfaces 75a, 75b, and 75c, and an arcuate surface 75d that is approximately the same radius of curvature of the reinforcing member 60. surrounded by Furthermore, the insertion hole 23 has spaces 76a and 76b as recesses into which the bulges 61a and 61b of the reinforcing member 60 are inserted. Therefore, by aligning the bulges 61a, 61b with the spaces 76a, 76b and inserting the reinforcing member 60 fixed to the main body member 41 into the insertion hole 23, the support member 40 is positioned at a predetermined position. In this way, the reinforcing member 60 functions as a positioning section.
The shape of the insertion hole 23 shown in FIG. 6(b) is approximately symmetrical with respect to a straight line Lh that is inclined at an angle of 45 degrees from a straight line in the front-rear direction (or a straight line in the left-right direction) passing through the center of the insertion hole 23 in plan view. It is. Further, the shape of the reinforcing member 60 is also approximately symmetrical with respect to the straight line Lh passing through the center of the main body member 41 in plan view. Therefore, the reinforcing member 60 can be inserted into the insertion hole 23 even when the support member 40 is rotated 180 degrees around the axis along the longitudinal direction of the main body member 41. The corner member 22 is arranged such that the arcuate surface 75d of the insertion hole 23 is positioned toward the outside of the truck main body 20 at each of the four corners.

The hand push member 80 is detachably attached to the support member 40 and is supported by the support member 40 . When attached to the support member 40, the hand-pushing member 80 functions as a first hand-pushing member for the user to push with his/her hand when moving the transport trolley 1.
The hand pushing member 80 has a hand pushing side grip part 81, connecting parts 82a and 82b, and mounting parts 83a and 83b.
The hand-push side grip part 81 is a part that the user grips with his/her hand when the hand-push member 80 is attached to the support member 40 and the transport trolley 1 is run. The hand-push-side grip portion 81 has a longitudinal direction that is different from that of the support-side grip portion 42, and specifically, the longitudinal direction is approximately in the left-right direction along the approximately horizontal direction. The push-side grip portion 81 is an elongated pipe-like member or a rod-like member. The push-side grip portion 81 is made of, for example, an aluminum alloy and is formed by extrusion molding in order to reduce the weight. The push-side grip portion 81 has a left-right dimension that is approximately the same as the length of the cart body portion 20 in the left-right direction or shorter than the length of the cart body portion 20 in the left-right direction. Further, the horizontal dimension of the push-side grip section 81 is longer than the vertical dimension of the support-side grip section 42. Further, the push-side grip portion 81 has an approximately circular outer diameter of, for example, 40 to 50 mm (approximately 44 mm here), and has an outer diameter that is easy for the user to grasp.

The connecting parts 82a and 82b are parts for arranging the push-side grip part 81 from the mounting parts 83a and 83b at a position (position in the front-rear direction, height, etc.) where the user can easily grasp it. The connecting portions 82a and 82b are provided at both ends of the push-side grip portion 81, respectively. The connecting portion 82a connects one end of the push side grip portion 81 and the mounting portion 83a, and the connecting portion 82b connects the other end of the push side grip portion 81 and the mounting portion 83b. The connecting portions 82a and 82b extend forward and diagonally downward from the end of the push-side grip portion 81. The connecting parts 82a and 82b are made of, for example, an aluminum alloy, and are respectively connected to both ends of the push-side grip part 81 by screws, rivets, welding, or the like.

The attachment parts 83a and 83b are parts for attaching the hand-pushing member 80 to the support member 40 in a removable manner. The mounting parts 83a and 83b are provided on the opposite side of the connecting parts 82a and 82b from the side on which the push-side grip part 81 is provided. The mounting parts 83a and 83b are cylindrical and have a larger outer diameter than the support side grip part 42. Each of the mounting parts 83a and 83b has a mounting hole 84 that opens upward and downward in order to insert the support-side grip part 42 of the main body member 41 therein. The distance between the mounting hole 84 of the mounting portion 83a and the mounting hole 84 of the mounting portion 83b is approximately the same as the distance between the insertion holes 23 of the corner members 22 adjacent to each other in the left-right direction. The mounting parts 83a and 83b are made of, for example, an aluminum alloy, and are joined to the connecting parts 82a and 82b, respectively, by bolts, rivets, welding, or the like.

Next, a case will be described in which the transport vehicle 1 is driven by the user.
(First running method)
First, a first traveling method in which the transport cart 1 is driven using the support member 40 without attaching the hand push member 80 will be explained.
The user attaches the supporting members 40A and 40B to the truck body 20 by inserting them into the respective insertion holes 23 of the corner member 22. In this case, the user can move the transport cart 1 by grasping the support-side grip portions 42 of the support members 40A, 40B with their hands.

Here, since the longitudinal direction of the support-side grip portions 42 is the vertical direction, when the user grasps the support-side grip portions 42 of the support members 40A and 40B with each hand, in a plan view of the transportation cart 1, The hand is oriented so that the back of the hand is on the outside of the cart main body 20 and the thumb is on the inside of the cart main body 20.
At this time, the protection part 51 of the support member 40 protrudes outward from the outer circumferential surface of the support side grip part 42, and when viewed from above, the user's hand (for example, the back of the hand) gripping the support side grip part 42 overlaps with the protection part 51. Therefore, when the upper end of the support members 40A, 40B approaches a wall or object, the protection part 51 comes into contact with the wall or object before the hand of the user who is grasping the support side grip part 42. contact with surrounding walls or objects is prevented or suppressed. In addition, in a plan view, the protection part 51 of this embodiment has a part of its outline located outside the trolley main body 20 so that it does not overlap with the trolley main body 20, and the rest is located inside the trolley main body 20. By being positioned, it overlaps with the trolley main body part 20.

(Second running method)
Next, a second traveling method for traveling the transport vehicle 1 using the hand push member 80 will be explained. In the second running method, the hand push member 80 can be gripped with a hand orientation different from that in the first running method described above.
The user attaches the hand push member 80 to the support members 40A and 40B attached to the trolley body 20. Specifically, the hand push member 80 is brought close to the support members 40A, 40B from above, and the support side grip portions 42 of the support members 40A, 40B are inserted into the mounting holes 84 of the respective mounting portions 83a, 83b of the hand push member 80. let The hand press member 80 is supported by the support members 40A, 40B because the lower surfaces of the mounting portions 83a, 83b of the hand press member 80 come into contact with the upper surfaces of the protective portions 51 of the support members 40A, 40B. That is, the hand-push member 80 is supported in a state where it is bridged between the support member 40A and the support member 40B. Note that a portion of each support side grip portion 42 of the support members 40A and 40B is covered by the mounting portions 83a and 83b of the hand push member 80. The user can move the transport cart 1 by grasping the hand-pushing side grip part 81 of the hand-pushing member 80 with his or her hand.

Here, as shown in the side view of FIG. 2, the upper end of the hand-push side grip part 81 of the hand-push member 80 is approximately at the same height as the upper end of the support member 40. Here, substantially the same height refers to a difference in the vertical direction between the upper end of the hand-push side grip portion 81 of the hand-push member 80 and the upper end of the support member 40 of 0 mm to 20 mm.
Further, as shown in the plan view of FIG. 4, the hand-push side grip portion 81 of the hand-push member 80 is positioned so as not to overlap the trolley main body portion 20. Specifically, the push-side grip portion 81 is located on the rear side of the rear frame portion 21b of the trolley body portion 20.

In addition, since the longitudinal direction of the hand push side grip section 81 is substantially the left-right direction, when the user grasps the hand push side grip section 81 with each hand, the back of the hand will be on the upper side in a plan view of the transport cart 1. The hand should be oriented with the thumb facing down. Therefore, by wearing the hand-holding member 80, the direction of the hand when the user grasps the object is changed to a direction different from that in the case where the hand-holding member 80 is not attached (first running method). be able to. Here, different hand orientations refer to different hand orientations when grasping with the same right hand (or left hand).

According to the hand push member 80 of the present embodiment, it is supported by the support members 40A and 40B that are removably attached to the trolley body 20 of the transportation trolley 1, and is detachably attached to the support members 40A and 40B. . Therefore, the part that the user grips with his/her hand can be changed depending on whether the hand push member 80 is attached to the support members 40A, 40B or when the hand push member 80 is not attached to the support members 40A, 40B. In this way, by being able to change the part that the user grips with his/her hand, it is possible, for example, to move the transport trolley 1 while gripping the part that the user prefers with his/her hand.
Moreover, since the hand-push member 80 of this embodiment is removable from the support members 40A, 40B, the hand-push member 80 is detached from the support members 40A, 40B when loading and unloading objects onto the trolley body 20. This makes it easy to load and unload cargo.

<Second embodiment>
Next, a transport trolley 2 according to a second embodiment will be described with reference to FIG. 7.
FIG. 7 is a perspective view showing an example of the transport vehicle 2 according to the second embodiment. In addition, the same structure as the transport trolley 1 of 2nd Embodiment is attached|subjected with the same code|symbol, and description is abbreviate|omitted suitably.
The transport truck 2 includes a truck main body 20, a running section 30, a support member 40 (40A to 40D), and a hand push member 80 (80A, 80B).

The transportation cart 2 of this embodiment has four support members 40 (40A to 40D), each of which is inserted into the insertion hole 23 of the four corner members 22. Here, the support member 40A is located on the right side and rear side, the support member 40B is located on the left side and rear side, the support member 40C is located on the right side and front side, and the support member 40D is located on the left side and front side. The support members 40A to 40D each have substantially the same configuration. Note that if there is no need to use the supporting members 40A to 40D separately, they will be simply referred to as the supporting member 40.

In this embodiment, in addition to the hand push member 80A that is attached to the support member 40A and the support member 40B, there is a hand push member 80B that is attached to the support member 40C and the support member 40D. Note that the hand-pushing member 80A has the same configuration as the hand-pushing member 80 of the first embodiment. Further, the hand-pushing member 80A and the hand-pushing member 80B have substantially the same configuration, and the hand-pushing member 80B is obtained by rotating the hand-pushing member 80A by 180 degrees around the vertical axis along the up-down direction.

The user attaches the hand push member 80A to the support members 40A and 40B attached to the trolley main body 20, and attaches the hand push member 80B to the support members 40C and 40D attached to the trolley main body 20. By attaching the hand push member 80B to the support members 40C and 40D, the hand push member 80A and the hand push member 80B have the longitudinal dimension of the trolley main body 20 perpendicular to the center line C1 of the left and right dimension shown in FIG. It is approximately symmetrical with respect to the center line C2.

By attaching the hand-holding members 80A and 80B in this way, the user can grasp either the hand-holding member 80A or the hand-holding member 80B with his or her hand when moving the transport trolley 2. For example, when pushing the transport cart 2 toward the front side shown in FIG. 7, the hand push member 80A can be used, and when pushing the transport cart 2 toward the rear side shown in FIG. 7, the hand push member 80B can be used. Therefore, the user can use the hand-pushing members 80A and 80B properly depending on the direction in which the transport cart 2 is pushed.

<Third embodiment>
Next, a transportation cart according to a third embodiment will be described.
The carrier of this embodiment is constructed of the same members as the carrier 1 of the first embodiment or the carrier 2 of the second embodiment, but the support member 40 and the hand-push member 80 are integrated. , is different in that the hand push member 80 cannot be attached to or detached from the support member 40.

Here, the transportation cart of this embodiment will be explained with reference to FIG.
The transport truck includes a truck main body 20, a traveling section 30, and a hand-pull unit.
The hand pushing unit has a substantially U-shape in which the supporting member 40 (40A, 40B) and the hand pushing member 80 are integrated, and is detachable from the trolley body 20.

The support member 40 includes a main body member 41 as a main body, a protection member 50, and a reinforcing member 60. For example, the main body member 41 has a first grip portion below the protection member 50, and a fixing portion for fixing the hand push member 80 above the protection member 50.
The hand push member 80 includes a hand push side grip part 81 as a second grip part, connecting parts 82a and 82b, and mounting parts 83a and 83b. The push side grip part 81 as the second grip part has a different hand direction when gripping the main body member 41 as the first grip part.

A manufacturer of the hand-held unit manufactures the hand-held unit by fixing the hand-held member 80 to the support members 40A and 40B. Specifically, the manufacturer brings the hand push member 80 close to the support members 40A, 40B from above, and inserts the upper parts of the support members 40A, 40B into the mounting holes 84 of the respective mounting portions 83a, 83b of the hand push member 80. . With the lower surfaces of the mounting portions 83a, 83b of the hand pushing member 80 in contact with the upper surfaces of the protection portions 51 of the supporting members 40A, 40B, the mounting portions 83a, 83b are attached to the supporting member 40A, 83b with bolts, rivets, welding, etc. By fixing them to 40B, a hand-held unit is manufactured.

The user attaches the hand push unit to the trolley body 20 by inserting the support members 40A and 40B of the hand push unit into the insertion holes 23 of the corner members 22, respectively. in this case,
The user can move the transport cart 1 by grasping the main body members 41 of the support members 40A and 40B with their hands in the hand-push unit, and can also move the cart 1 by grasping the hand-push side grip part 81 of the hand-push member 80 with their hands. The trolley 1 can be moved.

According to the hand pushing unit of this embodiment, it has a first grip part and a second grip part which are removably attached to the trolley main body 20 of the transport trolley and are gripped in different hand orientations. Therefore, the user can change the part that he or she grips with his/her hand. The hand push unit also includes a protection part 51 that protrudes outward from the outer circumferential surface of the first grip part to protect the hand gripping the first grip part from contacting surrounding objects. Therefore, according to the hand push unit of this embodiment, the user's hand that grips the first grip part can be protected.
Furthermore, the hand push unit may include a protection part that protrudes outward from the outer circumferential surface of the second grip part to protect the hand gripping the second grip part from coming into contact with surrounding objects. good.
Further, the hand push unit may include at least one of the protection part 51 of the first grip part and the protection part of the second grip part.

Although each embodiment of the present invention has been described above in detail with reference to the drawings, the embodiments merely show specific examples for implementing the present invention. The technical scope of the present invention is not limited to each of the embodiments described above, and each embodiment or modification example may be combined. The present invention can be modified in various ways without departing from its spirit, and these are also included within the technical scope of the present invention.

In each of the embodiments described above, a case has been described in which the hand-pushing side grip portion 81 of the hand-pushing member 80 (80A, 80B) is linear, but the present invention is not limited to this case. For example, the hand-push side grip portion 81 of the hand-push member 80 (80A, 80B) may be partially or entirely bent, or may be inclined with respect to the horizontal direction.
Further, in each of the embodiments described above, a case has been described in which the hand-pushing member 80 (80A, 80B) has the connecting portions 82a, 82b, but the present invention is not limited to this case. For example, the hand push member 80 (80A, 80B) may omit the connecting portions 82a, 82b, and the hand push side grip portion 81 and the mounting portions 83a, 83b may be directly connected.

Furthermore, in each of the above-described embodiments, a case has been described in which the hand-pushing member 80 (80A, 80B) has two connecting portions 82a, 82b and two mounting portions 83a, 83b, but this is not limited to this case. do not have. For example, the hand push member 80 (80A, 80B) may include a hand push side grip portion 81, one connecting portion 82a, and one mounting portion 83a. That is, the hand-pushing members 80 (80A, 80B) may not be supported in a state where they span two support members, but may be supported with respect to one support member.

Further, in each of the embodiments described above, the case where the support member 40 (40A to 40D) includes the reinforcing member 60 has been described, but the present invention is not limited to this case, and the reinforcing member 60 may not be provided. If there is no reinforcing member 60, the lower end of the main body member 41 is directly inserted into the insertion hole 23 of the corner member 22. In this case, the insertion hole 23 of the corner member 22 is appropriately set to have an inner diameter that corresponds to the outer diameter of the main body member 41.

Furthermore, in each of the above-described embodiments, a case has been described in which each supporting side grip part 42 of the supporting members 40A, 40B is inserted into the mounting hole 84 of each mounting part 83a, 83b of the hand push member 80, but this is not limited to this case. Instead, the relationship between the concave and convex portions may be reversed. That is, each mounting portion 83a, 83b of the hand push member 80 is provided with a protrusion projecting downward, and the projection of the mounting portion 83a, 83b is inserted into a hole opening upwardly in each supporting grip portion 42. Good too.

1, 2: Transport cart 20: Cart main body 30: Traveling section 40 (40A to 40D): Support member 41: Main body member 42: Support part side grip part 80: Hand push member 81: Hand push part side grip part 82a, 82b: Connecting part 83a, 83b: Mounting part

Claims (5)

a support member that is removably attached to a main body of a trolley loaded with objects and run by a running section;
A hand-push unit, comprising a hand-push member that is removably attached to the support member and is pushed by a user's hand when moving the transport cart,
The hand-pushing member has a mounting portion into which the support member can be inserted, and is provided with a mounting hole through which the upper end of the support member penetrates upward;
The support member is
A rod-shaped main body,
a plate-shaped support part that supports the mounting part by coming into contact with the lower surface of the mounting part;
A hand-held unit comprising: a mounting part integrally formed at a lower end of the support part and fixed to the main body part in order to attach the support part to the main body part . The hand-pushing member has a grip portion,
2. The hand-held unit according to claim 1, wherein the grip portion has an upper end substantially at the same height as an upper end of the support member. The hand-held unit according to claim 1 or 2, wherein the support portion has a substantially circular shape or a partially cut-out shape in a substantially circular shape when viewed from above. The hand-held unit according to claim 1 or 2, wherein the support portion has a substantially polygonal shape or a partially cut-out shape of a substantially polygonal shape when viewed from above. A hand-held unit according to any one of claims 1 to 4,
A transportation trolley comprising the above-mentioned trolley body.

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