JP7357898B2 - Hand holding members and protective members - Google Patents

Description

The present invention relates to a hand push member and a protection member. In particular, the present invention relates to a hand push member, a protection member, etc. that protects a user's hand from coming into contact with objects around the transport vehicle.

Transport carts are used at construction sites and the like. For example, Patent Document 1 discloses a hand-pushing member that has a protection part that protects the user's hand in order to prevent the user's hand from coming into contact with objects around the transport vehicle.

Japanese Patent Application Publication No. 2018-39491

In the hand-pushing member of Patent Document 1, when the user loads and unloads the transported object on the main body of the transport trolley, the protective part becomes an obstacle and there is a possibility that the transported object cannot be easily loaded and unloaded. .
The present invention was made in view of the above-mentioned problems, and an object of the present invention is to enable easy loading and unloading of transported objects.

The present invention is a hand-push member that is detachably attached to the main body of a transportation cart, and includes a grip portion that is gripped by a user's hand, and a grip portion that protrudes outward from the outer peripheral surface of the grip portion. a protective part that protects the grasped hand, and the protective part has an outline line that is at an angle of at least 135° from the center of the grip part when viewed from a longitudinal direction of the grip part. 1 range, and protrudes outward from the center more than the first range over a second range of the remaining angles excluding the first range. It is characterized by a cutout shape that reduces the number of parts .

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

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. FIG. 3 is a rear view showing an example of a hand-pushing member. It is a figure showing an example of a reinforcing member. It is a figure showing an example of a protection member. It is a figure which shows an example of the protection member based on a 1st modification. It is a figure showing an example of the protection member concerning the 2nd modification. It is a perspective view showing an example of a transportation trolley of a 2nd embodiment. It is a figure showing an example of a protection member. It is a figure which shows an example of the protection member based on a 3rd modification. It is a perspective view showing an example of a transportation truck of a 3rd embodiment. It is a figure showing an example of a protection member. It is a perspective view showing an example of a transportation truck of a 4th embodiment. It is a figure showing an example of a protection member. It is a perspective view showing an example of a transportation truck of a 5th embodiment. It is a figure showing an example of a protection member. It is a perspective view showing an example of a transportation truck of a 6th embodiment. It is a figure showing an example of a protection member. It is a perspective view showing an example of a protection member of a 7th embodiment. It is a figure which shows an example of the protection member based on a 4th modification and a 5th modification.

Below, a hand-held member and a protection member according to an embodiment will be described with reference to the drawings. For convenience of explanation, the vertical direction of the hand push member and the protection member shown in each of the embodiments below is based on the direction in which the hand push member is attached to the trolley main body. 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 hand push member 40 is attached to the trolley body 20, and FIGS. 2 to 4 show the state after the hand push member 40 is attached to the trolley main body 20. .
The transportation truck 1 includes a truck main body 20, a running section 30, and a hand push member 40.
First, the truck main body 20 will be explained.
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 part 24 (see FIG. 5) that closes the downward side. A hand-pushing member 40 is 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 25 are aligned in the front, rear, left and right directions and are joined by screws, 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 screws.

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. Casters 31 and 32 are each rotatable around a vertical axis O. 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 hand pushing member 40 is a member that is pushed by the user's hand when moving the transport trolley 1. 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 carrier 1 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.

FIG. 5 is a rear view showing an example of the hand-pushing member 40. As shown in FIG.
The hand-pushing member 40 includes a main body member 41 as a main body, a protection member 51, 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 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. 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 protective member 51 protects the user's hands and serves as an index indicating the maximum loading height when loading objects. The protection member 51 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 protective member 51 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. In addition, the range from the upper end of the main body member 41 to the upper end of the protection member 51 in the main body member 41 is the grip part 42 which the user grips with his/her hand when driving the transport trolley 1.

The protection member 51 of this embodiment will be explained with reference to FIG. 7. 7(a) to (d) are a plan view, a side view, a rear view, and a perspective view of the protection member 51, respectively. The direction shown in FIG. 7A is a direction in which the protection member 51 of the hand-pushing member 40A is taken as an example.
The protection member 51 has a protection part 52 and a mounting part 53, which are integrally formed. Furthermore, the protection member 51 has a mounting hole 54 that opens upward and downward in order to insert the main body member 41 therein. The protection member 51 is made of a resin material such as polyethylene, and is integrally formed by injection molding. In order to improve visibility, the protective member 51 is colored differently from the truck main body 20, specifically, the front frame 21a, the rear frame 21b, the right frame 21c, and the left frame 21d. For example, if the front frame part 21a, the rear frame part 21b, the right frame part 21c, and the left frame part 21d are made of a metal color such as silver, a color different from the metal color, such as red, green, or blue, may be used. It may be of three primary colors, such as orange or yellow. Further, the protection member 51 is colored differently from the main body member 41. For example, when the main body member 41 is a metallic color such as silver, the metallic color may be a different color, for example, three primary colors such as red, green, and blue, or may be orange, yellow, etc.

The protective portion 52 has a shape that protrudes outward from the outer peripheral surface (outer surface) of the grip portion 42 to protect the hand of the user who grips the grip portion 42 . Furthermore, the protection part 52 is shaped to suppress interference with the object to be transported when loading and unloading the object onto the cart main body 20 when the hand push member 40 is attached to the cart main body 20 .
The protection part 52 of this embodiment has a shape in which the outline (or part of the outline) in a plan view (or viewed from the longitudinal direction of the grip part 42) is a substantially circular shape with a part cut out. Here, it has a substantially semicircular shape. In FIG. 7(a), a part of the circular notch is indicated by a chain double-dashed line. The protection portion 52 is approximately semicircular with the center of the attachment portion 53 (or the center of the main body member 41) as the center in a plan view. In this embodiment, the center of the attachment portion 53 substantially coincides with the center of the main body member 41 and the center of the grip portion 42 .
Note that the term "approximately semicircular" is not limited to a shape obtained by cutting out a substantially circular shape at an angle of 180 degrees, but may also be a shape obtained by cutting a substantially circular shape over an angle range of 135 degrees, or an angle range of 225 degrees. The shape may be cut out over an arbitrary angle between 135 degrees and 225 degrees. Further, the substantially semicircular shape may be a substantially circular shape cut out at an angle of 150 degrees, or may be a shape cut out over an angle range of 210 degrees, and may be a shape cut out at an angle of 150 degrees to 210 degrees. The shape may be cut out over an arbitrary angle range between degrees.

The radial dimension of the protective part 52 is such that the user's hand (for example, the back of the hand) holding the grip part 42 does not overlap and protrude from the protective part 52 when viewed from above (it fits inside the outline when viewed from above). Set to dimensions. Specifically, the radius dimension of the protective portion 52 is preferably in the range of 50 to 80 mm, more preferably in the range of 55 to 70 mm. However, the specific dimensions are not particularly limited.

Further, the outer shape of the protective portion 52 is approximately symmetrical with respect to a straight line L1 in the left-right direction passing through the center of the attachment portion 53 in a plan view. Further, a part of the outline of the protection part 52 (a line along the radial direction) overlaps with the straight line L2 in the front-rear direction passing through the center of the attachment part 53 in plan view. However, a part of the outer line of the protection part 52 (a line along the radial direction) does not necessarily need to overlap the straight line L2, and may be parallel to the straight line L2 and offset to the right or left side. Furthermore, even if the substantially circular outline of the protective part 52 is notched at an angle other than 180 degrees, the outline of the protective part 52 is a straight line in the left-right direction passing through the center of the mounting part 53 in plan view. Preferably, it is approximately symmetrical with respect to L1.

On the other hand, the outer shape of the protection part 52 is asymmetrical with respect to the straight line L2 in the front-rear direction passing through the center of the attachment part 53 in plan view. The protection part 52 is larger than the protrusion amount D1 of the grip part 42 from the outer peripheral surface of the grip part 42 (or the inner peripheral surface of the attachment part 53) along the straight line L1 toward the right side (outside of the truck main body part 20). The amount of protrusion that protrudes from the outer circumferential surface (or the inner circumferential surface of the mounting portion 53) toward the left side (inside the truck main body portion 20) along the straight line L1 is smaller. The protective portion 52 also extends from the outer peripheral surface of the grip portion 42 toward the right side along a straight line L3 or a straight line L4 inclined at an angle of 45 degrees or -45 degrees (clockwise is a positive angle) with respect to the straight line L1. The amount of protrusion that protrudes from the outer circumferential surface of the grip portion 42 toward the left side along straight line L3 or L4 is smaller than the amount of protrusion. Moreover, in plan view, the area of the protection part 52 on the left side is smaller than the area on the right side with the straight line L2 as a boundary.
In addition, in this embodiment, in plan view, only the attachment part 53 is arranged on the left side with the straight line L2 as the boundary, and the protection part 52 is not arranged, so the amount of protrusion on the left side of the protection part 52 is 0. , and the area on the left side is 0.

Moreover, the protection part 52 has a constant thickness. Specifically, the vertical dimension of the protective portion 52 is preferably in the range of 5 to 30 mm, and more preferably in the range of 10 to 20 mm. However, the specific dimensions are not particularly limited.

The attachment part 53 has a cylindrical shape that integrally extends from the lower end and the left end of the protection part 52, and has a larger outer diameter than the main body member 41. The vertical dimensions of the attachment portion 53 are not particularly limited, but are set to a length that allows the attachment portion 53 to be fixed to the main body member 41 with bolts, rivets, or the like.

The attachment hole 54 is a hole into which the main body member 41 can be inserted. The inner diameter of the attachment hole 54 is set according to the outer shape of the main body member 41.
Therefore, by inserting the main body member 41 into the mounting hole 54 and fixing the mounting portion 53 to the main body member 41 at a predetermined position from the upper end of the main body member 41 with bolts, rivets, etc., the protective member 51 can be attached to the main body member 41. Can be fixed. The attachment portion 53 of this embodiment has insertion holes 55 into which bolts, rivets, etc. can be inserted at two locations sandwiching the center of the attachment portion 53 in plan view.
Although the protection member 51 of the hand push member 40A has been described here, the protection member 51 of the hand push member 40B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley body 20 shown in FIG. 4(a). It is. Moreover, the protective members 51 of the hand-pushing members 40C and 40D have shapes that are approximately symmetrical to the protective members 51 of the hand-pushing members 40A and 40B, respectively, with respect to the center line C2 of the trolley body 20.

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.
Further, as shown in FIG. 5, the lower end of the reinforcing member 60 has a tapered shape in which the outer diameter becomes smaller toward the bottom. Although the vertical dimension of the reinforcing member 60 is not particularly limited, it is set to be approximately the same length as the depth of the insertion hole 23 of the corner member 22.

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 hand push 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 push 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.

Next, returning to FIG. 1, the hand push members 40A to 40D will be further explained.
The protection member 51 is attached to the main body member 41 of the hand push member 40A and the hand push member 40C so that the protection portion 52 is located on the right side. Further, the reinforcing member 60 is attached to the main body member 41 so that the hand push member 40A and the hand push member 40C are positioned on the corner member 22 with the protection portion 52 located on the right side. Here, the reinforcing members 60 are attached to the hand-pushing member 40A and the hand-pushing member 40C in different directions relative to the main body member 41, specifically, in different states at 90 degrees.
On the other hand, the protective member 51 is attached to the main body member 41 of the hand-pushing member 40B and the hand-pushing member 40D such that the protective portion 52 is located on the left side. Further, the reinforcing member 60 is attached to the main body member 41 so that the hand push member 40B and the hand push member 40D are positioned on the corner member 22 with the protection portion 52 located on the left side. Here, the reinforcing members 60 are attached to the hand-pushing member 40B and the hand-pushing member 40D in different directions relative to the main body member 41, specifically, in different states at 90 degrees.
As a result, the diagonally located hand push member 40A and hand push member 40D have substantially the same configuration, and the diagonally located hand push member 40B and hand push member 40C have substantially the same structure. However, the shapes of the reinforcing member 60 and the insertion hole 23 of the corner member 22 are changed so that the hand push members 40A to 40D can all have substantially the same configuration while maintaining the orientation of the protective portion 52 shown in FIG. Good too.

The user can attach the hand push members 40A to 40D to the trolley body 20 by inserting the hand push members 40A to 40D into the insertion holes 23 of the corner member 22, respectively. The user can move the transport cart 1 by grasping the grip portions 42 of the push members 40A to 40D with their hands.
Here, in order to make the transport cart 1 travel, it is assumed that the user pushes the grip portions 42 of the hand-push members 40A and 40B while grasping (gripping) them with each hand. In a plan view of the transport trolley 1, the user grips it so that the back of his hand is on the outside of the trolley main body 20 and the thumb of his hand is on the inside of the trolley main body 20.
The protective portion 52 of the protective member 51 protrudes toward the outside of the trolley body portion 20 beyond the outer circumferential surface of the grip portion 42, and protects the hand (for example, the back of the hand) of the user who is gripping the grip portion 42 in plan view. It overlaps with the section 52. Therefore, when the upper end of the hand-holding members 40A, 40B approaches a wall or object, the protection part 52 comes into contact with the wall or object before the hand, so the user's hand holding the grip part 42 comes into contact with the wall or object. Contact with walls and objects is prevented or suppressed. In addition, as shown in the enlarged view of FIG. 4(b), points P1, P3, and points where the outline of the protection part 52 of the protection member 51 of the hand push member 40A intersect with the straight line L1, the straight line L3, and the straight line L4 P4 does not overlap with the trolley main body part 20 and is located outside of the trolley main body part 20, respectively.
Furthermore, even when the user grasps and pushes the grip portions 42 of the hand-pushing members 40C and 40D with their hands, the user's hands that are gripping the grip portions 42 are similarly prevented from coming into contact with walls or objects. suppressed.

Next, it is assumed that the user loads and unloads the transported object onto the trolley main body 20.
Here, the protective portion 52 of the protective member 51 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20, and in this embodiment, the protective portion 52 has a substantially semicircular shape with a portion of the substantially circular shape cut out. It is in a state of The cutout portion overlaps with the truck main body 20 in plan view. Further, the amount of protrusion of the protection portion 52 from the outer circumferential surface of the grip portion 42 toward the inside of the bogie body portion 20 is greater than the amount of protrusion from the outer circumferential surface of the grip portion 42 toward the outside of the bogie body portion 20 . is smaller. Therefore, in a plan view, the protection part 52 can reduce the overlap with the trolley main body part 20. Therefore, since interference with the protection part 52 can be suppressed when the user loads and unloads the transported object onto the trolley main body section 20, the transported object can be easily loaded and unloaded.
Further, the outer shape of the protective portion 52 is approximately symmetrical with respect to a straight line L1 in the left-right direction passing through the center of the attachment portion 53 in a plan view. Therefore, the protective member 51 of the hand push members 40A to 40D can be made common.

(First modification)
Next, a modification (first modification) of the first embodiment will be described with reference to FIG. 8.
The transport cart 2 of this modification has four hand-push members 80 (80A to 80D).
FIG. 8(a) is a plan view showing an example of the transport trolley 2 according to the first modification. FIG. 8(b) is an enlarged view of the vicinity of the hand-pushing member 80A shown in FIG. 8(a). FIG. 8(c) is a perspective view showing an example of the protection member 81. In addition, the same structure as the transportation trolley 1 explained in 1st Embodiment attaches|subjects the same code|symbol, and abbreviate|omits description.

Each of the hand pushing members 80A to 80D has a protective member 81.
Here, the protection member 81 of the hand push member 80A will be explained.
The protection member 81 has a protection part 82 and a mounting part 83, which are integrally formed. Furthermore, the protection member 81 has a mounting hole 84 that opens upward and downward in order to insert the main body member 41 therein.
In the protection member 81 of the first modification, the protection part 82 is different in shape from the protection part 52 of the first embodiment described above. Here, the description will focus on the points of the protection section 82 that are different from the protection section 52.

The protective portion 82 of this modification has an outline (or a part of the outline) in a plan view having a shape obtained by cutting out a part of a substantially polygon (substantially square), in this case, a substantially rectangular shape. In FIG. 8(b), a part of the notched shape is shown by a chain double-dashed line. The protective portion 82 has a shape obtained by cutting out a substantially square approximately centered on the center of the attachment portion 83 over a range of 180 degrees when viewed from above.

The front-rear dimension E1 and the left-right dimension E2 of the protection part 82 are set to dimensions that prevent the user's hand gripping the grip part 42 from overlapping and protruding from the protection part 82 in plan view. Specifically, the longitudinal dimension E1 of the protective portion 52 is preferably in the range of 100 to 160 mm, more preferably in the range of 110 to 140 mm. Further, the left-right dimension E2 of the protective portion 52 is preferably in the range of 50 to 80 mm, more preferably in the range of 55 to 70 mm. However, the specific dimensions are not particularly limited.

Further, the outer shape of the protection part 82 is approximately symmetrical with respect to the straight line L1 in the left-right direction passing through the center of the attachment part 83 in plan view. Further, a part of the outline of the protection part 82 (a line along the radial direction) overlaps with a straight line L2 in the front-rear direction passing through the center of the attachment part 83 in a plan view.
Although the protection member 81 of the hand push member 80A has been described here, the protection member 81 of the hand push member 80B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body 20 shown in FIG. 8(a). It is. Moreover, the protection members 81 of the hand-push members 80C and 80D have shapes that are approximately symmetrical to the protection members 81 of the hand-push members 80A and 80B, respectively, with respect to the center line C2 of the trolley body 20.

(Second modification)
Next, a modification (second modification) of the first embodiment will be described with reference to FIG. 9.
The transportation cart 3 of this modification has four hand pushing members 90 (90A to 90D).
FIG. 9(a) is a plan view showing an example of a transport trolley 3 according to a second modification. FIG. 9(b) is an enlarged view of the vicinity of the hand-pushing member 90A shown in FIG. 9(a). FIG. 9(c) is a perspective view showing an example of the protection member 91. In addition, the same structure as the transportation trolley 1 explained in 1st Embodiment attaches|subjects the same code|symbol, and abbreviate|omits description.

Each of the push members 90A to 90D has a protection member 91.
Here, the protection member 91 of the hand push member 90A will be explained.
The protection member 91 has a protection part 92 and a mounting part 93, which are integrally formed. Furthermore, the protection member 91 has a mounting hole 94 that opens upward and downward in order to insert the main body member 41 therein.
In the protection member 91 of the second modification, the protection part 92 is different in shape from the protection part 52 of the first embodiment described above. Here, the description will focus on the points of the protection section 92 that are different from the protection section 52.

The protective portion 92 of this modification has a shape in which an outline (or a part of the outline) in a plan view is obtained by cutting out a part of a substantially polygon (substantially regular hexagon), in this case, a substantially trapezoidal shape. In FIG. 8(b), a part of the notched shape is shown by a chain double-dashed line. The protection part 92 has a shape in which a substantially regular hexagon whose center is substantially centered on the attachment part 93 in plan view is cut out over a range of 180 degrees.

The base dimensions E3 and E4 along the front-rear direction and the height dimension E5 along the horizontal direction of the protection part 92 are such that the user's hand gripping the grip part 42 overlaps with the protection part 92 and protrudes in plan view. The dimensions are set to zero. Specifically, the longitudinal dimension E3 of the protective portion 92 is preferably in the range of 50 to 80 mm, more preferably in the range of 55 to 70 mm. Further, the longitudinal dimension E4 of the protective portion 92 is preferably in the range of 100 to 160 mm, and more preferably in the range of 110 to 140 mm. Further, the height dimension E5 of the protective portion 92 is preferably in the range of 42.5 to 69.2 mm, and more preferably in the range of 47.5 to 60.5 mm. However, the specific dimensions are not particularly limited.

Further, the outer shape of the protection part 92 is substantially symmetrical with respect to the straight line L1 in the left-right direction passing through the center of the attachment part 83 in plan view. Moreover, a part of the outline of the protection part 92 overlaps with the straight line L2 in the front-rear direction passing through the center of the attachment part 93 in plan view.
Although the protection member 91 of the hand push member 90A has been described here, the protection member 91 of the hand push member 90B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body 20 shown in FIG. 9(a). It is. Further, the protective members 91 of the hand push members 90C and 90D have shapes that are approximately symmetrical to the protection members 91 of the hand push members 90A and 90B, respectively, with respect to the center line C2 of the trolley main body portion 20.

<Second embodiment>
Next, a transport cart 4 according to a second embodiment will be described with reference to FIGS. 10 and 11.
FIG. 10 is a perspective view showing an example of the transport vehicle 4 according to the second embodiment. FIG. 11(a) is a plan view showing an example of the transport vehicle 4. FIG.

The transport cart 4 of this embodiment has four hand-push members 100 (100A to 100D). Note that if there is no need to use the hand-pushing members 100A to 100D separately, they will be simply referred to as the hand-pushing member 100. The hand push member 100 includes a main body member 41, a protection member 101, and a reinforcing member 60.
FIG. 11(b) is an enlarged view of the vicinity of the hand-pushing member 100A shown in FIG. 11(a). FIG. 11(c) is a perspective view showing an example of the protection member 101.

The protection member 101 has a protection part 102 and a mounting part 103, which are integrally formed. Furthermore, the protection member 101 has a mounting hole 104 that opens upward and downward in order to insert the main body member 41 therein. Note that the mounting portion 103 and the mounting hole 104 have the same configuration as the mounting portion 53 and the mounting hole 54 of the first embodiment, respectively.

The protective portion 102 of this embodiment has an outline (or a part of the outline) in a substantially circular shape with a part cut out when viewed from above. In FIG. 11(b), a portion of the substantially circular notch is shown by a chain double-dashed line. The protection part 102 has a substantially circular shape with a part thereof cut out, with the center of the mounting part 103 (or the center of the main body member 41) being substantially the center in a plan view. In this embodiment, the center of the attachment portion 103 substantially coincides with the center of the main body member 41 and the center of the grip portion 42 .
Note that in FIG. 11(b), the protective portion 102 has a shape in which a substantially circular shape is cut out over an angle range of 90 degrees; The shape may be cut out over the entire length.

The radius dimension of the protection part 102 can be set to the same radius dimension as the protection part 52 of the first embodiment. However, the specific dimensions are not particularly limited.
Further, the outer shape of the protection part 102 is approximately symmetrical to a straight line L3 that is inclined at an angle of 45 degrees from a straight line L1 in the left-right direction passing through the center of the attachment part 103 in plan view. In addition, a part of the outline of the protection part 102 (a line along the radial direction) overlaps with the straight line L2 in the front-rear direction passing through the center of the attachment part 103 and the above-mentioned straight line L1 in plan view. However, a part of the outline of the protection part 102 (a line along the radial direction) does not necessarily need to overlap the straight lines L1 and L2, and may be parallel to the straight line L1 and offset to the front or rear side, or may be parallel to the straight line L1 and offset to the front or rear side, or It may be parallel to L2 and offset to the right or left. Furthermore, even if the substantially circular outline of the protective part 102 is notched at an angle other than 90 degrees, the outline of the protective part 102 is a straight line inclined at an angle of 45 degrees from the straight line L1 in plan view. Preferably, it is approximately symmetrical with respect to L3.

On the other hand, the outer shape of the protection part 102 is asymmetrical with respect to the straight line L2 in the front-rear direction passing through the center of the attachment part 53 in plan view. The protection part 102 protrudes from the outer circumferential surface of the grip part 42 by a larger amount than the amount of protrusion from the outer circumferential surface of the grip part 42 along the straight line L1, the straight line L3, or the straight line L4 toward the right side (outside of the truck main body part 20). The amount of protrusion that protrudes toward the left side (inside of the truck main body portion 20) along the straight line L3 is smaller. Moreover, in plan view, the area of the protection part 102 on the left side is smaller than the area on the right side with the straight line L2 as a boundary.

Although the protection member 101 of the hand push member 100A has been described here, the protection member 101 of the hand push member 100B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body 20 shown in FIG. 11(a). It is. Furthermore, the protective members 101 of the hand push members 100C and 100D have shapes that are approximately symmetrical to the protection members 101 of the hand push members 100A and 100B, respectively, with respect to the center line C2 of the trolley main body portion 20.

The user can attach the hand push members 100A to 100D to the trolley body 20 by inserting the hand push members 100A to 100D into the insertion holes 23 of the corner member 22, respectively. The protection part 102 of the protection member 101 overlaps with the protection part 102 when the user's hand holding the grip part 42 is viewed from above, so that the user's hand holding the grip part 42 does not come into contact with a wall or object. is prevented or suppressed. The protection part 102 of this embodiment protrudes from the outer circumferential surface of the grip part 42 toward the outside of the trolley body part 20 along the straight line L4, respectively (on the right side and the left side), so that it is easier for the user to handle the protection part 102. Contact with walls and objects is prevented or suppressed.

Further, the protection portion 102 of the protection member 101 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20, and in this embodiment, a substantially circular shape with a partially cut out shape. The cutout portion overlaps the truck main body portion 20 in plan view. Moreover, the protection part 102 extends from the outer circumferential surface of the grip part 42 toward the inside of the cart main body 20 along the straight line L3, compared to the amount of protrusion that protrudes from the outer circumferential surface of the grip part 42 toward the outside of the cart main body 20. The amount of protrusion is smaller. Therefore, in plan view, the protection part 102 can reduce the overlap with the trolley main body part 20. Therefore, since interference with the protection part 102 can be suppressed when the user loads and unloads the transported object onto the trolley main body section 20, the transported object can be easily loaded and unloaded.
Further, the outer shape of the protection part 102 is approximately symmetrical with respect to the straight line L3 passing through the center of the attachment part 103 in a plan view. Therefore, the protective member 101 of the hand push members 100A to 100D can be made common.

(Third modification)
Next, a modification (third modification) of the second embodiment will be described with reference to FIG. 12.
The transportation cart 5 of this modification has four hand-push members 110 (110A to 110D).
FIG. 12(a) is a plan view showing an example of a transport cart 5 according to a third modification. FIG. 12(b) is an enlarged view of the vicinity of the hand-pushing member 110A shown in FIG. 12(a). FIG. 12(c) is a perspective view showing an example of the protection member 111. In addition, the same structure as the transportation trolley 1 explained in 1st Embodiment attaches|subjects the same code|symbol, and abbreviate|omits description.

Hand push members 110A to 110D each have a protection member 111.
Here, the protection member 111 of the hand push member 110A will be explained.
The protection member 111 has a protection part 112 and a mounting part 113, which are integrally formed. Furthermore, the protection member 111 has a mounting hole 114 that opens upward and downward in order to insert the main body member 41 therein.
In the protection member 111 of the third modification, the protection part 112 is different in shape from the protection part 102 of the second embodiment described above. Here, the explanation will focus on the points of the protection section 112 that are different from the protection section 102.

The protective portion 112 of this modification has an outline (or a part of the outline) in a plan view of a substantially polygon (approximately square) with a part cut out, here, an approximately L-shape. In FIG. 12(b), a part of the notched shape is shown by a chain double-dashed line. The protection part 112 has a shape in which a substantially square whose center is substantially at the center of the attachment part 113 is notched over a range of 45 degrees in a plan view.

The front-rear dimension E6 and the left-right dimension E7 of the protection part 112 are set to dimensions that prevent the user's hand gripping the grip part 42 from overlapping and protruding from the protection part 112 in plan view. Specifically, the longitudinal dimension E6 and the lateral dimension E7 of the protective portion 112 are preferably in the range of 100 to 160 mm, and more preferably in the range of 110 to 140 mm. However, the specific dimensions are not particularly limited.

Further, the outer shape of the protection part 112 is approximately symmetrical with respect to the straight line L3 passing through the center of the attachment part 113 in plan view. Moreover, a part of the outline of the protection part 112 overlaps with the straight line L1 and the straight line L2 passing through the center of the attachment part 83 in plan view.
Although the protection member 111 of the hand push member 110A has been described here, the protection member 111 of the hand push member 110B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body 20 shown in FIG. 12(a). It is. Further, the protection members 111 of the hand push members 110C and 110D have shapes that are approximately symmetrical to the protection members 111 of the hand push members 110A and 110B, respectively, with respect to the center line C2 of the trolley main body portion 20.

<Third embodiment>
Next, a transport cart 6 according to a third embodiment will be described with reference to FIGS. 13 and 14.
FIG. 13 is a perspective view showing an example of the transport trolley 6 according to the third embodiment. FIG. 14(a) is a plan view showing an example of the transport vehicle 6. FIG.

The transport cart 6 of this embodiment has four hand-push members 120 (120A to 120D). Note that when there is no need to use the hand-pushing members 120A to 120D separately, they will be simply referred to as the hand-pushing member 120. The hand-pushing member 120 includes a main body member 41, a protection member 121, and a reinforcing member 60.
FIG. 14(b) is an enlarged view of the vicinity of the hand-pushing member 120A shown in FIG. 14(a). FIG. 14(c) is a perspective view showing an example of the protection member 121.

The protection member 121 has a protection part 122 and a mounting part 123, which are integrally formed. Furthermore, the protection member 121 has a mounting hole 124 that opens upward and downward in order to insert the main body member 41 therein. Note that the mounting portion 123 and the mounting hole 124 have the same configuration as the mounting portion 53 and the mounting hole 54 of the first embodiment, respectively.

The protective portion 122 of this embodiment has an outline (or a part of the outline) in a substantially circular shape with a part cut out when viewed from above. In FIG. 14(b), a part of the circular notch is shown by a chain double-dashed line. The protection part 122 has a substantially circular shape with a part cut out, with the center of the attachment part 123 (or the center of the main body member 41) being substantially the center in a plan view. In this embodiment, the center of the attachment portion 123 substantially coincides with the center of the main body member 41 and the center of the grip portion 42 .
Moreover, the protection part 122 of this embodiment can hold the side wall 10. As shown in FIG. 13, the side wall 10 has a rectangular plate shape, and covers the sides of the transport cart 6 from the front, rear, left and right sides, respectively. The side wall 10 is made of, for example, plastic cardboard. Plastic cardboard is a plate-shaped member that is made of plastic and has a hollow area, and is lightweight and has excellent rigidity. However, the side wall 10 may be made of plywood, veneer, or the like.

The protection part 122 has holding parts 125a and 125b that hold the side wall 10. As shown in FIG. 14(b), the holding parts 125a and 125b are located at positions overlapping with the truck main body part 20, and are formed at an interval of approximately 90° about the center of the attachment part 123. Specifically, the holding part 125a is located at the front end of the protection part 122, and the holding part 125b is located at the left end of the protection part 122.
The holding parts 125a and 125b have groove parts 126a and 126b that are recessed from the outside toward the center of the protection part 122, that is, toward the inside. The groove portions 126a and 126b vertically penetrate the protective portion 122. Furthermore, the groove widths of the groove portions 126a and 126b are set to a size that allows the side wall 10 to be fitted therein.

The radius dimension of the protection part 122 can be set to the same radius dimension as the protection part 52 of the first embodiment.
Further, the outer shape of the protection part 122 is approximately symmetrical to a straight line L3 that is inclined at an angle of 45 degrees from a straight line L1 in the left-right direction passing through the center of the attachment part 123 in a plan view.
On the other hand, the outer shape of the protection part 122 is asymmetrical with respect to the straight line L2 in the front-rear direction passing through the center of the attachment part 123 in plan view. The protection part 122 protrudes from the outer circumferential surface of the grip part 42 by a larger amount than the amount of protrusion from the outer circumferential surface of the grip part 42 along the straight line L1, the straight line L3, or the straight line L4 toward the right side (outside of the truck main body part 20). The amount of protrusion that protrudes toward the left side (inside of the truck main body portion 20) along the straight line L3 is smaller. Note that the straight line L4 is a straight line inclined at -45 degrees with respect to the straight line L1. Moreover, in plan view, the area of the protection part 122 on the left side is smaller than the area on the right side with the straight line L2 as a boundary.

Although the protection member 121 of the hand push member 120A has been described here, the protection member 121 of the hand push member 120B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body 20 shown in FIG. 14(a). It is. Further, the protection members 121 of the hand push members 120C and 120D have shapes that are approximately symmetrical to the protection members 121 of the hand push members 120A and 120B, respectively, with respect to the center line C2 of the trolley main body portion 20.

The user can attach the hand push members 120A to 120D to the trolley body 20 by inserting the hand push members 120A to 120D into the insertion holes 23 of the corner member 22, respectively. The protection part 122 of the protection member 121 overlaps the protection part 122 when the user's hand holding the grip part 42 is viewed from above, so that the user's hand holding the grip part 42 does not come into contact with a wall or object. is prevented or suppressed. The protection part 122 of this embodiment protrudes from the outer circumferential surface of the grip part 42 toward the outside of the trolley body part 20 along the straight line L4 to both sides (right and left sides). Contact with walls and objects is prevented or suppressed.

Further, the protective portion 122 of the protection member 121 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20, and in this embodiment, a substantially circular shape with a partially cut out shape. The cutout portion overlaps the truck main body portion 20 in plan view. Furthermore, the protection portion 122 extends from the outer circumferential surface of the grip portion 42 toward the inside of the truck body portion 20 along the straight line L3, compared to the amount of protrusion that protrudes from the outer peripheral surface of the grip portion 42 toward the outside of the truck body portion 20. The amount of protrusion is smaller. Therefore, in plan view, the protection part 122 can reduce the overlap with the trolley main body part 20. Therefore, since interference with the protection part 122 can be suppressed when the user loads and unloads the transported object onto the trolley main body section 20, the transported object can be easily loaded and unloaded.
Moreover, since the protection part 122 has the holding parts 125a and 126b, it can hold the side wall 10. Note that a holding member different from the protection member 121 may be attached to the hand push member 120 in order to hold the side wall 10 at a position below the main body member 41. Moreover, the hand-pushing member 120 may be attached to one main body member 41 with two or more protection members 121 spaced apart from each other in the vertical direction.
Furthermore, the outer shape of the protection part 122 is approximately symmetrical with respect to a straight line L3 in the left-right direction passing through the center of the attachment part 123 in plan view. Therefore, the protective member 121 of the hand push members 120A to 120D can be made common.

<Fourth embodiment>
Next, a transport cart 7 according to a fourth embodiment will be described with reference to FIGS. 15 and 16.
FIG. 15 is a perspective view showing an example of the transport cart 7 according to the fourth embodiment. FIG. 16(a) is a plan view showing an example of the transport vehicle 7. FIG.

The transport cart 7 of this embodiment has four hand-push members 130 (130A to 130D). Note that if there is no need to use the hand-pushing members 130A to 130D separately, they will be simply referred to as the hand-pushing member 130. The hand-pushing member 130 includes a main body member 41, a protection member 131, and a reinforcing member 60.
FIG. 16(b) is an enlarged view of the vicinity of the hand-pushing member 130A shown in FIG. 16(a). FIG. 16(c) is a perspective view showing an example of the protection member 131.

The protection member 131 has a protection part 132 and a mounting part 133, which are integrally formed. Furthermore, the protection member 131 has a mounting hole 134 that opens upward and downward in order to insert the main body member 41 therein. Note that the mounting portion 133 and the mounting hole 134 have the same configuration as the mounting portion 53 and the mounting hole 54 of the first embodiment, respectively.

The protection portion 132 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20 when the hand push member 130 is attached to the trolley main body 20 .
The protective portion 132 of this embodiment has a substantially polygonal (substantially square) outline in plan view. The protection portion 132 has a substantially square shape centered approximately on the center of the attachment portion 133 (or the center of the main body member 41) in plan view. Moreover, each side of the protection part 132 is substantially square and is parallel to the front-rear direction or the left-right direction. In this embodiment, the center of the attachment portion 133 substantially coincides with the center of the main body member 41 and the center of the grip portion 42 .

The front-rear dimension E8 and the left-right dimension E9 of the protection part 132 are set to dimensions that prevent the user's hand gripping the grip part 42 from overlapping and protruding from the protection part 132 in plan view. Specifically, the longitudinal dimensions E8 and E9 of the protective portion 52 are preferably in the range of 100 to 160 mm, and more preferably in the range of 110 to 140 mm. However, the specific dimensions are not particularly limited.

In addition, the outer shape of the protective portion 132 is approximately symmetrical with respect to a straight line L1 in the left-right direction passing through the center of the attachment portion 133 in plan view, and approximately symmetrical with respect to a straight line L2 in the left-right direction passing through the center of the attachment portion 133. It is symmetrical. Further, the outer shape of the protective portion 132 is approximately symmetrical with respect to a straight line L3 passing through the center of the attachment portion 133 and approximately symmetrical with respect to a straight line L4 passing through the center of the attachment portion 133 in plan view. Moreover, a part of the outer shape of the protection part 132 does not overlap with the trolley main body part 20, and the rest overlaps with the trolley main body part 20.

Although the protection member 131 of the hand push member 130A has been described here, the protection member 131 of the hand push member 130B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body 20 shown in FIG. 16(a). It is. Further, the protection members 131 of the hand push members 130C and 130D have shapes that are approximately symmetrical to the protection members 131 of the hand push members 130A and 130B, respectively, with respect to the center line C2 of the trolley main body portion 20.

The user can attach the hand push members 130A to 130D to the trolley body 20 by inserting the hand push members 130A to 130D into the insertion holes 23 of the corner member 22, respectively. The protection part 132 of the protection member 131 overlaps the protection part 132 when the user's hand holding the grip part 42 is viewed from above, so that the user's hand holding the grip part 42 does not come into contact with a wall or object. is prevented or suppressed. Since the protection part 132 of this embodiment protrudes from the entire circumference of the outer peripheral surface of the grip part 42 toward the outside of the trolley body part 20, it is possible to prevent or suppress the user's hand from coming into contact with a wall or object. be done.

Furthermore, the protection portion 132 of the protection member 131 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20, and is approximately square in this embodiment. By making the protection part 132 into a substantially square shape, the overlap with the truck main body 20 can be reduced compared to the case where the protection part is substantially circular as shown by the two-dot chain line in FIG. 16(b). Therefore, since interference with the protection part 132 can be suppressed when the user loads and unloads the transported object onto the trolley main body section 20, the transported object can be easily loaded and unloaded.

In this embodiment, the case where the substantially polygon is a substantially square has been described, but the present invention is not limited to this case, and other substantially polygons may be used. In the case of a substantially polygonal shape, it is preferably a substantially regular polygon such as a substantially regular triangle, a substantially regular pentagon, a substantially regular hexagon, a substantially regular heptagon, or a substantially regular octagon.
Furthermore, in the present embodiment, a case has been described in which the protecting portion 132 is approximately square with each side parallel to the front-rear direction or the left-right direction; however, the present invention is not limited to this case. The image may be rotated by an angle of degrees.

<Fifth embodiment>
Next, a transport trolley 8 according to a fifth embodiment will be described with reference to FIGS. 17 and 18.
FIG. 17 is a perspective view showing an example of the transport cart 8 according to the fifth embodiment. FIG. 18(a) is a plan view showing an example of the transport vehicle 8. FIG.

The transport cart 8 of this embodiment has four hand-push members 140 (140A to 140D). Note that if there is no need to use the hand-pushing members 140A to 140D separately, they will be simply referred to as the hand-pushing member 140. The hand push member 140 includes a main body member 41, a protection member 141, and a reinforcing member 60.
FIG. 18(b) is an enlarged view of the vicinity of the hand-pushing member 140A shown in FIG. 18(a). FIG. 18(c) is a perspective view showing an example of the protection member 141.

The protection member 141 has a protection part 142 and a mounting part 143, which are integrally formed. Furthermore, the protection member 141 has a mounting hole 144 that opens upward and downward in order to insert the main body member 41 therein. Note that the mounting portion 143 and the mounting hole 144 have the same configuration as the mounting portion 53 and the mounting hole 54 of the first embodiment, respectively.

The protection portion 142 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20 when the hand push member 140 is attached to the trolley main body 20 .
The outline of the protection part 142 of this embodiment has a gentle uneven shape (wavy shape) over the entire circumference (or part) of a substantially circular shape when viewed from above. The protective portion 142 has a shape that expands approximately around the center of the attachment portion 143 (or the center of the main body member 41) in plan view. In this embodiment, the center of the attachment portion 143 substantially coincides with the center of the main body member 41 and the center of the grip portion 42 .

The radius dimension of the circular shape (see the two-dot chain line shown in FIG. 18(b)) in which the tips of adjacent projections of the projections and recesses of the protection part 142 are connected in an arc shape is the same as that of the protection part 52 of the first embodiment. Can be set to similar radial dimensions. However, the specific dimensions are not particularly limited.

In addition, the outer shape of the protective portion 142 is approximately symmetrical with respect to a straight line L1 in the left-right direction passing through the center of the attachment portion 143 in a plan view, and approximately symmetrical with respect to a straight line L2 in the left-right direction passing through the center of the attachment portion 143. It is symmetrical. In addition, the outer shape of the protective portion 142 is approximately symmetrical with respect to a straight line L3 passing through the center of the attachment portion 143 and approximately symmetrical with respect to a straight line L4 passing through the center of the attachment portion 143 in plan view. In addition, a part of the outline of the protection part 142 does not overlap with the trolley main body part 20, and the rest overlaps with the trolley main body part 20.

Although the protection member 141 of the hand push member 140A has been described here, the protection member 141 of the hand push member 140B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body 20 shown in FIG. 18(a). It is. Further, the protective members 141 of the hand-push members 140C and 140D have shapes that are approximately symmetrical to the protective members 141 of the hand-push members 140A and 140B, respectively, with respect to the center line C2 of the trolley main body 20.

The user can attach the hand push members 140A to 140D to the trolley body 20 by inserting the hand push members 140A to 140D into the insertion holes 23 of the corner member 22, respectively. The protection part 142 of the protection member 141 overlaps the protection part 142 when the user's hand holding the grip part 42 is viewed from above, so that the user's hand holding the grip part 42 does not come into contact with a wall or object. is prevented or suppressed. Since the protection part 142 of this embodiment protrudes from the entire circumference of the outer peripheral surface of the grip part 42 toward the outside of the trolley body part 20, it is possible to prevent or suppress the user's hand from coming into contact with a wall or object. be done.

Further, the protective portion 142 of the protective member 141 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20, and in this embodiment, the outer shape is uneven. By making the outer shape of the protection part 142 uneven, the overlap with the truck main body part 20 can be reduced compared to the case where the protection part is approximately circular as shown by the two-dot chain line in FIG. 18(b). Therefore, since interference with the protection part 142 can be suppressed when the user loads and unloads the transported object onto the trolley main body section 20, the transported object can be easily loaded and unloaded.

In the present embodiment, a case has been described in which the outer shape of the protective portion 142 is gently uneven (wavy) over the entire circumference of a substantially circular shape when viewed from above, but the present invention is not limited to this case. For example, a portion overlapping with the truck main body 20 may be provided with an uneven shape.

<Sixth embodiment>
Next, a transport cart 9 according to a sixth embodiment will be described with reference to FIGS. 19 and 20.
FIG. 19 is a perspective view showing an example of the transport cart 9 according to the sixth embodiment. FIG. 20(a) is a plan view showing an example of the transport vehicle 9. FIG.

The transport cart 9 of this embodiment has four hand-push members 150 (150A to 150D). Note that if there is no need to use the hand-pushing members 150A to 150D separately, they will be simply referred to as the hand-pushing member 150. The hand-pushing member 150 includes a main body member 41, a protection member 151, and a reinforcing member 60.
FIG. 20(b) is an enlarged view of the vicinity of the hand-pushing member 150A shown in FIG. 20(a). FIG. 20(c) is a perspective view showing an example of the protection member 151.

The protection member 151 has a protection portion 152 and a mounting portion 153, which are integrally formed. Furthermore, the protection member 151 has a mounting hole 154 that opens upward and downward in order to insert the main body member 41 therein. Note that the mounting portion 153 and the mounting hole 154 have the same configuration as the mounting portion 53 and the mounting hole 54 of the first embodiment, respectively.

The protection portion 152 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20 when the hand push member 150 is attached to the trolley main body 20 .
The outer shape of the protection part 152 of this embodiment is approximately circular, specifically approximately elliptical, in plan view. The protective portion 152 has a substantially elliptical shape centered approximately on the center of the attachment portion 153 (or the center of the main body member 41) in plan view. In this embodiment, the center of the attachment portion 153 substantially coincides with the center of the main body member 41 and the center of the grip portion 42 .

The length can be set to be 1/2 of the major axis of the substantially elliptical shape of the protection part 152, similar to the radius dimension of the protection part 52 in the first embodiment. Further, the ratio of the major axis dimension to the minor axis dimension can be set to be larger than 1/1 and smaller than 3/1. However, the specific dimensions are not particularly limited.
In addition, the outer shape of the protective portion 152 is approximately symmetrical with respect to a straight line L1 in the left-right direction passing through the center of the attachment portion 153 in a plan view, and approximately symmetrical with respect to a straight line L2 in the left-right direction passing through the center of the attachment portion 153. It is symmetrical. In addition, a part of the outline of the protection part 152 does not overlap with the trolley main body part 20, and the rest overlaps with the trolley main body part 20.

Although the protection member 151 of the hand push member 150A has been described here, the protection member 151 of the hand push member 150B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body 20 shown in FIG. 20(a). It is. Further, the protection members 151 of the hand push members 150C and 150D have shapes that are approximately symmetrical to the protection members 151 of the hand push members 150A and 150B, respectively, with respect to the center line C2 of the trolley main body portion 20.

The user can attach the hand push members 150A to 150D to the trolley body 20 by inserting the hand push members 150A to 150D into the insertion holes 23 of the corner member 22, respectively. The protection part 152 of the protection member 151 overlaps the protection part 152 when the user's hand holding the grip part 42 is viewed from above, so that the user's hand holding the grip part 42 does not come into contact with a wall or object. is prevented or suppressed. Since the protection part 152 of this embodiment protrudes from the entire circumference of the outer peripheral surface of the grip part 42 toward the outside of the trolley body part 20, it is possible to prevent or suppress the user's hand from coming into contact with a wall or object. be done.

Further, the protection portion 152 of the protection member 151 has a shape that suppresses interference with the transported object when loading and unloading the transported object onto the trolley main body 20, and in this embodiment is approximately elliptical. By making the outer shape of the protection part 152 substantially elliptical, the overlap with the truck main body 20 can be reduced compared to the case where the protection part is a substantially perfect circle shown by the two-dot chain line in FIG. 20(b). Therefore, since interference with the protection part 152 can be suppressed when the user loads and unloads the transported object onto the trolley main body section 20, the transported object can be easily loaded and unloaded.

Note that the substantially ellipse in this embodiment is not limited to a shape that is a locus of points where the sum of distances from two fixed points on one plane is constant, but includes a shape that is a crushed circle.
Further, in this embodiment, a case has been described in which the major axis direction of the approximately ellipse is parallel to the straight line L1, but the present invention is not limited to this case, and the major axis direction of the approximately ellipse may be parallel to the straight line L2.

<Seventh embodiment>
Next, a hand push member 160 (160A to 160D) according to a seventh embodiment will be described with reference to FIG. 21. Here, only the hand push member 160A will be explained.
FIG. 21 is an exploded perspective view showing an example of the hand push member 160A.
The hand-pushing member 160A includes a main body member 41, a protection member 161, and a reinforcing member 60.
Note that the main body member 41 and the reinforcing member 60 have the same configuration as the main body member 41 and the reinforcing member 60 of the first embodiment, respectively.
The protection member 161 includes a first protection part 162, a second protection part 163, and a grip part 164, which are integrally formed. Further, the protection member 161 is formed with a mounting hole 165 that opens on the lower side (the side opposite to the second protection part 163 in the vertical direction) into which the upper end portion of the main body member 41 can be inserted.

The grip portion 164 has a substantially cylindrical shape and has dimensions that allow the user to grasp (grasp) it with one hand. For example, the vertical dimension is preferably in the range of 100 to 200 mm, more preferably in the range of 120 to 180 mm, so that the user can grasp it with one hand. Further, the surface of the grip portion 164 may be provided with an uneven pattern to prevent slipping. The grip portion 164 has an insertion hole 166 into which a bolt, rivet, or the like can be inserted.

The first protection part 162 and the second protection part 163 are provided close to the grip part 164. Specifically, the first protection part 162 is provided at one end (lower side) of the grip part 164 in the vertical direction (the axial direction of the main body member 41), and the second protection part 163 is provided at the end part (lower side) of the grip part 164. It is provided at the other end (upper side) in the vertical direction.
The first protection part 162 and the second protection part 163 have substantially the same shape in plan view, and overlap each other. Specifically, the first protection part 162 and the second protection part 163 have substantially the same shape as the protection part 52 of the first embodiment.
The attachment hole 165 is a hole (recess) into which the main body member 41 can be inserted, and is open on the lower side (first protection part 162 side). The inner diameter of the attachment hole 165 is set to a size that allows the outer diameter of the main body member 41 to be inserted therein. Further, the depth of the mounting hole 165 is not particularly limited, but is set to a depth that will not come off at least when a force is applied in the lateral direction during use.

The protective member 161 can be attached to the main body member 41 by inserting the upper end of the main body member 41 into the attachment hole 165 of the grip portion 164 until it abuts. In addition, by inserting a bolt, rivet, etc. into the insertion hole 166 with the protection member 161 attached to the main body member 41, the protection member 161 can be fixed to the main body member 41 so as not to detach or rotate. .

Although the protection member 161 of the hand push member 160A has been described here, the protection member 161 of the hand push member 160B has a configuration that is approximately symmetrical with respect to the center line C1 of the trolley main body portion 20. Further, the protective members 161 of the hand push members 160C and 160D have shapes that are approximately symmetrical to the protection members 161 of the hand push members 160A and 160B, respectively, with respect to the center line C2 of the trolley main body portion 20.
The user can attach the hand push members 150A to 150D to the trolley body 20 by inserting the hand push members 150A to 150D into the insertion holes 23 of the corner member 22, respectively.

According to this embodiment, in addition to the effects of the first embodiment described above, the grip portion 164 can be made of a member different from the main body member 41. Moreover, since the first protection part 162 and the second protection part 163 are provided above and below the grip part 164, contact of the user's hand with a wall or object is further prevented or suppressed.
In addition, in this embodiment, the case where the first protection part 162 and the second protection part 163 have substantially the same shape as the protection part 52 of the first embodiment has been described, but this is not limited to this case, and the above-mentioned The protective portion may have substantially the same shape as the protective portion of each of the above embodiments or modified examples.

(Fourth modification)
Next, a modification (fourth modification) of the seventh embodiment will be described with reference to FIG. 22(a). Here, only the hand push member 170A will be explained.
FIG. 22(a) is an exploded perspective view showing an example of the hand push member 170A.
The hand push member 170A includes a main body member 41, a protection member 171, and a reinforcing member 60.
Note that the main body member 41 and the reinforcing member 60 have the same configuration as the main body member 41 and the reinforcing member 60 of the first embodiment, respectively.

The protection member 171 has a first protection part 162 and a grip part 164, which are integrally formed. Further, a mounting hole 165 is formed inside the protection member 171. The protection member 171 of this modification has a shape in which the second protection portion 163 of the protection member 161 of the seventh embodiment is removed.
Note that the first protection part 162 is not limited to having substantially the same shape as the protection part 52 of the first embodiment, but may have substantially the same shape as the protection part of each embodiment or each modification described above. It's okay.

(Fifth modification)
Next, a modification (fifth modification) of the seventh embodiment will be described with reference to FIG. 22(b). Here, only the hand push member 180A will be explained.
FIG. 22(b) is an exploded perspective view showing an example of the hand push member 180A.
The hand push member 180A includes a main body member 41, a protection member 181, and a reinforcing member 60.
Note that the main body member 41 and the reinforcing member 60 have the same configuration as the main body member 41 and the reinforcing member 60 of the first embodiment, respectively.

The protection member 181 has a second protection part 163 and a grip part 164, which are integrally formed. Further, a mounting hole 165 is formed inside the protection member 181. The protection member 181 of this embodiment has a shape in which the first protection portion 162 of the protection member 161 of the seventh embodiment is removed.
Note that the second protection part 163 is not limited to having substantially the same shape as the protection part 52 of the first embodiment, but may have substantially the same shape as the protection part of each embodiment or each modification described above. It's okay.

Although each embodiment of the present invention has been described above in detail with reference to the drawings, the embodiment or each modification example merely shows a specific example of 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 each modification 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 and modifications described above, a case has been described in which the straight line L3 or the straight line L4 is a straight line inclined at an angle of 45 degrees or −45 degrees with respect to the straight line L1, but the present invention is not limited to this case. For example, even if the straight line L3 or the straight line L4 is a straight line inclined at an angle of 50 degrees or -50 degrees with respect to the straight line L1, the shape of each protection part may be changed so as to be applicable. Further, for example, the shape of each protection part may be changed so that the present invention can be applied even if the straight line L3 or the straight line L4 is a straight line inclined at an angle of 40 degrees or -40 degrees with respect to the straight line L1.

Further, in the first embodiment and the modified example described above, the case is explained in which the substantially circular or substantially polygonal shape is cut out over an angle range of 180 degrees, but the shape is cut out over an angle range of 270 degrees. It may also have a notched shape.
Further, the protection portions of the above-described embodiments and modifications may be appropriately rounded (R portions) so that the corners are not sharp when viewed from above.

1 to 9: Transport trolley 20: Trolley body 30: Running section 40 (40A to 40D), 80 (80A to 80D), 90 (90A to 90D), 100 (100A to 100D), 110 (110A to 110D), 120 (120A to 120D), 130 (130A to 130D), 140 (140A to 140D), 150 (150A to 150D), 160 (160A), 170 (170A), 180 (180A): Hand push member 41: Main body member 42: Grip part 60: Reinforcement member

Claims (17)

A hand-push member that is removably attached to the main body of a transport cart,
a grip portion that the user grasps with his/her hand;
a protective portion that protrudes outward from the outer circumferential surface of the grip portion and protects a hand gripping the grip portion;
The protection part is
When viewed from the longitudinal direction of the grip part, the outline continuously protrudes outward over a first range that is an angle of at least 135° from the center of the grip part, and A hand-held member characterized by having a shape cut out so that a second range out of the remaining angles excluding the range protrudes outward from the center less than the first range. . The protection part is
The hand according to claim 1, wherein the shape that continuously projects over the first range is a substantially semicircular shape when viewed from the longitudinal direction of the grip part. Push member . The protection part is
The hand press according to claim 1, wherein the shape that continuously projects over the first range is a substantially rectangular shape when viewed from the longitudinal direction of the grip part. parts . The protection part is
The hand press according to claim 1, wherein the shape that continuously projects over the first range when viewed from the longitudinal direction of the grip portion is a substantially trapezoidal shape. parts . The protection part is
When viewed from the longitudinal direction of the grip portion, the shape that continuously protrudes over the first range is a substantially circular or substantially rectangular shape with a part cut out. Hand push member according to claim 1. According to any one of claims 1 to 5, the second range is an angular range excluding the first range within a range of angles of 360° from the center of the grip part. Manual push member as described . The protection part is
In a state in which the hand push member is attached to the trolley main body, in plan view,
The hand-push member according to any one of claims 1 to 6 , wherein the notched portion overlaps the trolley main body. The protection part is
In a state in which the hand push member is attached to the trolley main body, in plan view,
Any one of claims 1 to 7 , characterized in that it has a shape in which a part of a substantially circular or substantially polygonal shape is partially cut out, with the center substantially located at a position deviated from the center of the grip portion to the inner side of the truck main body portion. The hand-held member according to item 1. The protection part is
In a state in which the hand push member is attached to the trolley main body, in plan view,
The hand-push member according to any one of claims 1 to 8 , characterized in that an outline that continuously projects outward over the first range does not overlap with the trolley main body. The protection part is
In a state in which the hand push member is attached to the trolley main body, in plan view,
The amount of protrusion that protrudes from the outer circumferential surface of the grip portion toward the inside of the truck body is smaller than the amount of protrusion that protrudes from the outer circumferential surface of the grip portion toward the outside of the truck body. The hand-push member according to any one of claims 1 to 9. The protection part is
In a state in which the hand push member is attached to the trolley main body, in plan view,
The amount of protrusion that protrudes from the outer circumferential surface of the grip portion toward the outside of the truck main body along a straight line that is inclined at 45 degrees or -45 degrees with respect to a straight line passing through the center of the grip portion in the left-right direction. 11. The hand-push member according to claim 10, wherein the amount of protrusion from the outer circumferential surface of the grip portion toward the inside of the trolley body portion is smaller than that of the grip portion. When the hand-pushing member is attached to the trolley main body, the protective portion has the following characteristics in a plan view:
Claims 1 to 11, characterized in that an inner area of the trolley main body is smaller than an outer area of the trolley main body, with a straight line passing through the center of the grip section in the front-rear direction as a boundary. The hand-held member according to any one of items 1 to 1. The protection part is
In a state in which the hand push member is attached to the trolley main body, in plan view,
The hand-push member according to any one of claims 1 to 12, wherein the hand-push member is asymmetrical with respect to a straight line passing through the center of the grip portion in the front-rear direction. The protective portion has an outline such that, in a plan view, when the hand-pushing member is attached to the trolley main body,
The hand-push member according to any one of claims 1 to 13, wherein the hand-push member is substantially symmetrical with respect to a straight line passing through the center of the grip portion in the left-right direction. The protection part is
In a state in which the hand push member is attached to the trolley main body, in plan view,
The hand press according to any one of claims 1 to 13, wherein the hand press is substantially symmetrical with respect to a straight line inclined at an angle of 45 degrees from a straight line passing through the center of the grip portion in the left-right direction. Element. A protective member attached to a rod-shaped member that is removably attached to the main body of a transport trolley,
a grip portion that the user grasps with his/her hand;
a protective portion that protrudes outward from the outer circumferential surface of the grip portion and protects a hand gripping the grip portion;
The protection part is
When viewed from the longitudinal direction of the grip part, the outline continuously protrudes outward over a first range that is an angle of at least 135° from the center of the grip part, and A protective member characterized by having a shape cut out so that a second range out of the remaining angles excluding the range protrudes outward from the center less than the first range. A protective member attached to a rod-shaped member that is removably attached to the main body of a transport trolley,
The rod-shaped member has a protective portion that protrudes outward from the outer circumferential surface of the grip portion that is gripped by the user's hand and protects the hand that grips the grip portion;
The protection part is
over a first range in which the outline is at an angle of at least 135° from the center of the portion to be attached to the grip when viewed from the longitudinal direction of the grip when attached to the rod-shaped member; The cutout continuously protrudes outward, and the notch protrudes outward from the center less than the first range over a second range of the remaining angles excluding the first range. A protective member characterized by having a curved shape .

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