JP2023126288A - Hand-operated member, transport dolly, and protection member - Google Patents

Abstract

To prevent hands of a user from contacting with an object etc. around a transport dolly.SOLUTION: The invention relates to a hand-operated member 40 for allowing a user to push a transport dolly 1 with its hand when moving the transport dolly 1. The hand-operated member 40 includes protection parts 44, 45 which protect a hand of the user holding the hand-operated member 40. Further, the hand-operated member 40 has a grip part 43. The protection parts 44, 45 are located close to the grip part 43 and protrude to the outer side relative to an outer peripheral surface of the grip part 43.SELECTED DRAWING: Figure 2

Description

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

By the way, when moving the transport cart using the push bar, there is a possibility that the hand of the user who is grasping (holding) the push bar may come into contact with an object existing in the surrounding area, such as a wall.
The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to prevent the user's hands from coming into contact with objects around the transport vehicle.

The present invention is a hand-pushing member for a user to push with his/her hand when moving a transport cart, and is characterized by having a protection part for protecting the hand of the user who grips the hand-pushing member.
The present invention provides a transport trolley comprising: a trolley body loaded with objects to be transported and driven by a running section; and a hand-push member provided on the trolley main body for pushing by hand by a user; The hand-pushing member is characterized in that it has a protection part that protrudes outward from the outer shape of the main body of the cart in a plan view of the transport cart and protects the hand of a user who grips the hand-pushing member.

According to the present invention, it is possible to prevent the user's hands from coming into contact with objects around the transport vehicle.

It is a figure showing an example of composition of a transportation trolley and a push member of a 1st embodiment. FIG. 3 is an external perspective view schematically showing a configuration example of a protection member. FIG. 3 is a cross-sectional view schematically showing a configuration example of a protection member. It is a figure explaining the effect of a hand-pushing member. It is a figure explaining the effect of a hand-pushing member. It is a figure which shows typically the example of a structure of the protection member of 2nd Embodiment. It is a figure which shows the example of a structure of the conveyance trolley and a hand-pushing member of 3rd Embodiment. It is a figure which shows the example of a structure of a hand-pushing member and a protection member. It is a figure showing the example of composition of a reinforcing member. It is a figure which shows the example of a structure of the conveyance trolley and a hand-pushing member of 4th Embodiment. It is a figure which shows the example of a structure of a hand-pushing member and a protection member. FIG. 2 is a perspective view showing an example of the configuration of a transport truck with side walls attached. It is a figure which shows the state in which the hand-pushing members are piled up. It is a figure which shows the example of a structure of the hand-pushing member of 5th Embodiment. It is a perspective view showing an example of composition of a protection member of a 6th embodiment. It is a figure showing the example of composition of the transportation truck which attached the side wall. It is a figure showing the example of composition of the transportation truck which attached the side wall.

Below, a transport cart and a push 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 diagram showing an example of the configuration of a transport cart and a hand-pushing member according to the first embodiment.
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 rectangular shape with a longitudinal direction extending in the front-rear direction and a 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 an aluminum alloy formed by extrusion molding, for example. The corner member 22 has an insertion hole 23 that opens upward, and a stopper portion 24 (see FIG. 8) that closes the downward direction. 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 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, an angular hollow pipe made of aluminum alloy, a plate with an uneven cross section, or the like can be used, for example.
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 traveling section 30 has a plurality of casters 31. In the present embodiment, the traveling section 30 has six casters: four casters 31 disposed at the four corners of the trolley main body section 20 and two casters 31 disposed at the center in the front-rear direction and spaced apart from each other in the left and right directions. has. The casters 31 are each attached to the truck body 20 via attachment plates.

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 push member 40 is attached to the truck body 20 by inserting its lower end into the insertion hole 23 of the corner member 22. The transportation cart 1 of this embodiment has four push members 40, which are inserted into the insertion holes 23 of each corner member 22. All four hand-push members 40 have the same configuration. However, the present invention is not limited to the case where four hand press members 40 are attached, and one, two or three hand press members 40 may be attached.

The hand-pushing member 40 has a main body member 41 as a main body portion and a protection member 42 .
The main body member 41 is an elongated and pipe-shaped member. For the main body member 41, for example, a single pipe (single pipe) can be applied. A single tube refers to a general structural carbon steel tube specified in JIS G 3444, and is a circular tube with an outer diameter of 48.6 mm. However, the main body member 41 is not limited to a single tube having the dimensions described above, and various rod-shaped or tubular members can be used.

The protective member 42 protects the user's hands. The protection member 42 is removably attached to the upper end of the main body member 41. A user (such as a construction worker) can move the transport cart 1 by grasping the protection member 42 attached to the main body member 41.

FIG. 2 is an external perspective view schematically showing a configuration example of the protection member 42, in which (a) is a view seen diagonally from above, and (b) is a view seen diagonally from below. FIG. 3 is a cross-sectional view schematically showing a configuration example of the protection member 42. As shown in FIG.
As shown in FIGS. 2 and 3, the protection member 42 includes a grip portion 43, a first protection portion 44, and a second protection portion 45, which are integrally formed. Further, the protection member 42 is formed with a mounting hole 46 that opens on the lower side (the side opposite to the first protection part 44 in the vertical direction) into which the upper end portion of the main body member 41 can be inserted. The protection member 42 is made of a resin material such as polyethylene, and is integrally formed by injection molding.

The grip portion 43 has a substantially cylindrical shape and has dimensions that allow the user to grasp (grasp) it with one hand. For example, the length (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, when a single tube is used for the main body member 41, the outer diameter is preferably in the range of 50 to 60 mm, for example. However, the specific dimensions are not particularly limited. Further, the surface of the grip portion 43 may be provided with an uneven pattern to prevent slipping.

The first protection part 44 and the second protection part 45 are provided close to the grip part 43. Specifically, the first protection part 44 is provided at one end (upper side) of the grip part 43 in the vertical direction (the axial direction of the main body member 41), and the second protection part 45 is provided at the top and bottom of the grip part 43. provided at the other end (lower side) of the direction.
The first protection part 44 and the second protection part 45 both protrude outward from the outer peripheral surface of the grip part 43 and have a larger outer diameter than the grip part 43. In particular, the outer diameters of the first protection part 44 and the second protection part 45 are such that, in plan view, the hand H (finger) of the user grasping the grip part 43 is The dimensions are set such that it does not overlap and protrude from the protection part 45 (it fits inside the outline in plan view). Specifically, for example, the outer diameters of the first protection part 44 and the second protection part 45 are preferably in the range of 100 to 140 mm, and more preferably in the range of 110 to 130 mm. However, the specific dimensions are not particularly limited.

The first protection part 44 has a substantially circular shape in a plan view, and has a tapered shape in which the outer diameter becomes smaller toward the upper side (the side opposite to the grip part 43). The side surface 47 (radially outer surface) of the first protection part 44 is formed into a curved surface that bulges radially outward and obliquely upward in side view. The upper surface 48 (the surface opposite to the grip section 43) of the first protection section 44 is formed into a dome-shaped curved surface that bulges upward. The side surface 47 and the top surface 48 of the first protection part 44 are smoothly connected by a curved surface. Note that the lower surface 49 of the first protection part 44 may be a flat surface. However, it is preferable that the side surface 47 and the lower surface 49 of the first protection part 44 are smoothly connected by a curved surface. Thus, in side view, the contour lines of the side surface 47 and the top surface 48 of the first protection part 44 are formed in curved lines.
However, the shape of the first protection part 44 is not limited to the shape described above. For example, the shape of the first protection part 44 may be a disk shape, or may be a substantially hemispherical shape that bulges upward.

The second protection part 45 has a shape obtained by inverting the first protection part 44 in the vertical direction. However, the shape of the second protection part 45 is not limited to the shape described above. For example, the shape of the second protection part 45 may be a disk shape, or may be a substantially hemispherical shape that bulges downward.
The attachment hole 46 is a hole (recess) into which the main body member 41 can be inserted, and is open on the lower side (the side of the second protection part 45). The inner diameter of the attachment hole 46 is set according to the outer diameter of the main body member 41. For example, when the main body member 41 is inserted into the mounting hole 46, the protective member 42 is dimensioned so that it does not easily separate from the main body member 41. Further, the depth of the mounting hole 46 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.

Therefore, the protective member 42 can be attached to the main body member 41 by inserting the upper end portion of the main body member 41 into the attachment hole 46 (see FIG. 1). The user can attach the hand push member 40 to the trolley main body 20 by inserting the hand push member 40 with the protection member 42 attached to the main body member 41 into the insertion hole 23 of each corner member 22, and then use the hand push member 40. A person can move the transport cart 1 by grasping the grip portion 43 of the hand-pushing member 40 with his/her hand.

Here, the effects of the hand press member 40 according to the first embodiment will be explained with reference to FIGS. 4 and 5. 4 and 5 are diagrams illustrating the effects of the hand-pushing member 40. Specifically, FIG. 4 is a diagram schematically showing a state in which the upper end of the hand-pushing member 40 approaches an object W such as a wall while the transport vehicle 1 is moving. FIG. 5 is a diagram schematically showing a state in which the plate material, which is the object B of the transport vehicle 1, is leaning against the upper end of the hand-pushing member 40.

As shown in FIG. 4, while the transport cart 1 is moving, the upper end of the hand-pushing member 40 may approach an object W such as a wall. At this time, if the protection member 42 is not attached to the upper end of the main body member 41 and the user simply grasps the upper end of the main body member 41 directly, the user's hand H (fingers and back of the hand) may It may come into contact with the object W or be sandwiched between the main body member 41 and the object W. On the other hand, as shown in FIG. When the upper end approaches the object W, the first protection part 44 and the second protection part 45 come into contact with the object W, so the user's hand H holding the grip part 43 comes into contact with the object W. is prevented or suppressed.

As shown in FIG. 5, when a plate-shaped material is transported by the transport cart 1, the plate-shaped material may be placed against the upper end of the hand-pushing member 40. At this time, by leaning the plate-shaped material that is the transported object B against the first protection part 44 of the protection member 42, a space for the user to grasp the hand-pushing member 40 can be secured, and the user's hand H (Especially fingers) can be prevented or suppressed from coming into contact with the transported object B. Here, the side surface 47 of the first protection part 44 is a curved surface that bulges diagonally upward, and the top surface 48 is a curved surface that bulges upward. linked. Therefore, when the object B leans diagonally above the first protection part 44, the object B will be received by the curved surface. Therefore, formation of contact marks on the transported object B is prevented or suppressed.

Note that the transported object B of the transport trolley 1 may move during transportation and approach the upper end of the hand-pushing member 40 . Also in this case, the transported object B comes into contact with the hand H of the user who is gripping the grip section 43 due to the moved object B coming into contact with the first protection part 44 and the second protection part 45. is prevented or suppressed. At this time, since the first protection part 44 and the second protection part 45 are not provided with a pointed part toward the outside in the radial direction, the first protection part 44 and the second protection part 45 are not provided with a pointed part. Formation of contact marks on the transported object B is prevented or suppressed.

As described above, according to the hand push member 40 according to the first embodiment, the hand H of the user who is grasping the hand push member 40 of the transport trolley 1 can be used to hold the object W around the transport trolley 1 or the hand push member 40 of the transport trolley 1. The conveyed object B is prevented or suppressed from coming into contact with it. Furthermore, even if the transported object B comes into contact with the protection member 42, contact marks are prevented or suppressed from being formed on the transported object B.

<Second embodiment>
Next, the configuration of the hand-pushing member according to the second embodiment will be described with reference to FIG. 6.
FIG. 6 is a diagram schematically showing a configuration example of the protection member 52 of the hand-held member according to the second embodiment, in which (a) is a view seen from above, and (b) is a view from below. It is a diagram. Note that the same configurations as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 6, the protection member 52 has an insertion portion 53 and a protection portion 54, which are integrally formed. The protection member 52 is made of a resin material such as polyethylene, and is integrally formed by injection molding.

The insertion portion 53 is a portion having a cylindrical or columnar configuration, and is a portion inserted into the upper end portion of the main body member 41. The outer diameter of the insertion portion 53 is set according to the inner diameter of the main body member 41 to which it is applied. For example, the dimensions are set such that the protection member 52 does not easily separate from the main body member 41 when the insertion portion 53 is inserted into the main body member 41 .

The protection part 54 is a part provided above the insertion part 53. The protection portion 54 protrudes outward from the outer peripheral surface of the main body member 41 to which it is applied. The protection portion 54 is, for example, approximately circular in plan view. The outer diameter of the protective part 54 is such that the user's fingers grasping the upper end of the main body member 41 do not protrude from the protective part 54 when viewed from above (the outer diameter falls within the outline of the protective part 54 when viewed from above). Set to dimensions. Specifically, the outer diameter of the protective portion 54 is preferably in the range of 100 to 140 mm, more preferably in the range of 110 to 130 mm. However, the specific dimensions are not particularly limited.

The same shape as the first protection part 44 of the protection member 42 according to the first embodiment can be applied to the protection part 54. That is, the protection part 54 has a tapered shape whose outer diameter decreases toward the upper side (the side opposite to the insertion part 53). The side surface 57 of the protective portion 54 is formed into a curved surface that bulges outward in the radial direction and obliquely upward in a side view. The upper surface 58 (the surface opposite to the insertion section 53) of the protection section 54 is formed into a dome-shaped curved surface that bulges upward. The side surface 57 and the top surface 58 of the protection part 54 are smoothly connected by a curved surface. Thus, in side view, the contour lines of the side surface 57 and the top surface 58 of the protection part 54 are curved. Further, the lower surface 59 of the protective portion 54 (the surface facing the insertion portion 53 side) may be substantially flat. The side surface 57 and the lower surface 59 of the protection part 54 are smoothly connected by a curved surface.

Therefore, by inserting the insertion portion 53 into the upper end portion of the main body member 41, the protective member 52 can be attached to the main body member 41. The user can attach the hand-held member to the trolley main body 20 by inserting the hand-held member with the protection member 52 attached to the main body member 41 into the insertion hole 23 of the corner member 22, and the user The transport cart can be moved by gripping the main body member 41 close to the protection part 54 as a grip part. According to the second embodiment, the same effects as the first embodiment can be achieved.

<Third embodiment>
Next, a description will be given of the configurations of a transport cart and a hand-pushing member according to the third embodiment.
FIG. 7 is a diagram illustrating a configuration example of a transport cart and a hand-pushing member according to the third embodiment. Note that the same configurations as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.
The transport truck 2 includes a truck main body 20, a running section 30, and a hand pushing member 60.

The hand-pushing member 60 includes a main body member 61 as a main body, a protection member 63, and a reinforcing member 70.
The main body member 61 is an elongated and pipe-shaped member. Unlike the first embodiment, the main body member 61 of this embodiment is made of an aluminum alloy and is formed by extrusion molding in order to reduce the weight. Furthermore, in order to improve visibility, the main body member 61 of this embodiment has a color different from that of the truck main body 20, specifically, the front frame part 21a, the rear frame part 21b, the right frame part 21c, and the left frame part 21d. is attached. 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. The three primary colors may be used, or the color may be orange or the like.
Further, the main body member 61 of this embodiment is a circular tube having an outer diameter of, for example, 42 to 45 mm (here, 44 mm), which is smaller in diameter than that of the first embodiment, so that the user can easily grasp it. Further, the main body member 61 of this embodiment is internally reinforced in a cross shape to improve strength. However, the main body member 61 is not limited to the above-mentioned dimensions, and various rod-shaped or tubular members, the above-mentioned single tube, etc. can be applied.

FIG. 8 is a diagram showing an example of the configuration of the hand-pushing member 60 and the protection member 63, in which (a) is a side view of the hand-pushing member 60, and (b) is a sectional view taken along the line II.
The protective member 63 protects the user's hands and serves as an index indicating the maximum loading height when loading objects. The protection member 63 is fixed to the upper side of the main body member 61 at a predetermined distance from the upper end with bolts, rivets, or the like. The protection member 63 of this embodiment is preferably fixed at a position 100 to 200 mm away from the upper end of the main body member 61, and more preferably 120 to 180 mm away. A range of the main body member 61 from the upper end of the main body member 61 to the upper end of the protective member 63 functions as a grip portion 62 .
The protection member 63 has a protection part 64 and a mounting part 65, which are integrally formed. Furthermore, the protection member 63 has a mounting hole 66 that opens upward and downward in order to insert the main body member 61 therein. The protection member 63 is made of a resin material such as polyethylene, and is integrally formed by injection molding. In order to improve visibility, the protective member 63 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. The three primary colors may be used, or the color may be orange or the like. Note that the protective member 63 has a different color from the main body member 61, but may have the same color.

The protective portion 64 has a disk shape that protrudes outward from the outer circumferential surface of the grip portion 62 and has a larger outer diameter than the grip portion 62. In particular, the outer diameter of the protection part 64 is set to a size that prevents the hand of the user who is gripping the grip part 62 from overlapping and protruding from the protection part 64 when viewed from above (it fits inside the outline line when viewed from above). be done. Specifically, the outer diameter of the protective portion 64 is preferably in the range of 100 to 140 mm, more preferably in the range of 110 to 130 mm. However, the specific dimensions are not particularly limited.
The attachment part 65 has a cylindrical shape extending downward from the lower end of the protection part 64 and has an outer diameter larger than the main body member 61 and smaller than the protection part 64. The length (vertical dimension) of the attachment portion 65 is not particularly limited, but is set to a length that allows the attachment portion 65 to be fixed to the main body member 61 with bolts, rivets, or the like.

The attachment hole 66 is a hole into which the main body member 61 can be inserted. The inner diameter of the attachment hole 66 is set according to the outer shape of the main body member 61.
Therefore, by inserting the main body member 61 into the mounting hole 66 and fixing the mounting portion 65 to the main body member 61 at a predetermined position from the upper end of the main body member 61 with bolts, rivets, etc., the protective member 63 can be attached to the main body member 61. Can be fixed.

The reinforcing member 70 is fixed to the lower end of the main body member 61, specifically, at a position close to the lower end with bolts, rivets, or the like. The reinforcing member 70 reinforces the strength of the main body member 61 and suppresses rattling between the main body member 61 and the insertion hole 23 when the main body member 61 is inserted into the insertion hole 23 of the corner member 22. The reinforcing member 70 is made of, for example, an aluminum alloy.
9A and 9B are diagrams showing a configuration example of the reinforcing member 70, (a) is a cross-sectional view taken along the line II-II shown in FIG. 8(a), and (b) is a diagram showing the insertion hole 23 of the corner member 22. It is.

As shown in FIG. 9A, the reinforcing member 70 has a cylindrical shape and has an outer diameter larger than the outer diameter of the main body member 61. As shown in FIG. The reinforcing member 70 has a plurality of (two in this case) bulging portions 71a and 71b in which a portion of the outer circumferential surface bulges in the radial direction. The bulging portions 71a and 71b protrude in the radial direction via a gentle slope portion 72. Further, the lower end of the reinforcing member 70 has a tapered shape in which the outer diameter becomes smaller toward the lower side. The length (vertical dimension) of the reinforcing member 70 is not particularly limited, but is set to be approximately the same length as the depth of the insertion hole 23 of the corner member 22. Further, the reinforcing member 70 has a mounting hole 73 that opens upward and downward in order to insert the main body member 61 therein.
Therefore, by inserting the main body member 61 into the mounting hole 73 and fixing the reinforcing member 70 to the main body member 61 at a predetermined position from the lower end of the main body member 61 with bolts, rivets, etc., the reinforcing member 70 can be attached to the main body member 61. Can be fixed.

On the other hand, as shown in FIG. 9(b), the insertion hole 23 into which the reinforcing member 70 is inserted is surrounded by flat surfaces 75a, 75b, and 75c, and an arcuate surface 75d that is approximately the same radius of curvature of the reinforcing member 70. It is. Furthermore, the insertion hole 23 has spaces 76a and 76b as recesses into which the bulges 71a and 71b of the reinforcing member 70 are inserted. Therefore, by aligning the bulges 71a and 71b with the spaces 76a and 76b and inserting the reinforcing member 70 fixed to the main body member 61 into the insertion hole 23, the hand push member 60 is positioned at a predetermined position.

The user attaches the hand push member 60 to the trolley main body 20 by inserting the hand push member 60 with the protection member 63 and reinforcing member 70 fixed to the main body member 61 into each insertion hole 23 of the corner member 22. I can do it. The user can move the transport cart 2 by grasping the grip portion 62 of the hand-pushing member 60 with his/her hand. According to the third embodiment, the same effects as the first embodiment can be achieved.

Further, in this embodiment, since the main body member 61 is used which has a smaller diameter than a single tube, the user can easily grasp the grip portion 62 of the main body member 61. On the other hand, a reinforcing member 70 is fixed to the lower end of the main body member 61 in order to compensate for the decrease in strength due to the small diameter. Therefore, the strength of the hand-pushing member 60 can be improved. However, even if a single tube or a member other than a single tube is used for the main body member 61, the reinforcing member 70 may be fixed to the lower end of the main body member 61.
Furthermore, in this embodiment, when the reinforcing member 70 is inserted into the insertion hole 23, the inclined portion 72 of the reinforcing member 70 is in contact with the flat surfaces 75b, 75c and the circular arc surface 75d. Therefore, compared to simply inserting the circular main body member 61, the interposition of the reinforcing member 70 increases the contact area between the corner member 22 and the insertion hole 23. can be made smaller.

Further, in a plan view shown in FIG. 8(b), a portion of the protection portion 64 overlaps with the truck main body portion 20 (see the two-dot chain line). Therefore, since the object to be transported and the protection part 64 interfere with each other when the object is loaded onto the trolley body 20, it is possible to prevent the object from being loaded higher than the protection part 64. In other words, the protection portion 64 serves as an index indicating the maximum loading height. Therefore, the user can prevent the center of gravity of the transport trolley 2 loaded with objects from becoming high, and the user can run the transport trolley 2 stably. In addition, in order to inform the user that the protection part 64 is an indicator indicating the maximum loading height, a sticker or the like is placed on the hand push member 60 or the trolley to the effect that objects must not be loaded beyond the protection part 64. It is attached to the main body part 20 and the like.
Note that the protection member 63 may be arranged at a position a predetermined distance away from the upper end of the main body member 61 so as to be rotatable with respect to the main body member 61 about the axis of the attachment hole 66 . In this case, when the protection part 64 of the protection member 63 comes into contact with the object W such as a wall, the protection member 63 rotates, and the impact upon contact can be suppressed.

<Fourth embodiment>
Next, a description will be given of the configurations of a transport cart and a hand-pushing member according to the fourth embodiment.
FIG. 10 is a diagram illustrating an example of the configuration of a transport cart and a hand-pushing member according to the fourth embodiment. Note that configurations similar to those in the third embodiment are denoted by the same reference numerals, and description thereof will be omitted.
The transport truck 3 includes a truck body 20, a running section 30, and a hand push member 80 (80a to 80d).

The hand-pushing member 80 includes a main body member 61 as a main body, a protection member 83, and a reinforcing member 70. Note that the same members as in the third embodiment can be used for the main body member 61 and the reinforcing member 70.
FIG. 11 is a diagram showing an example of the configuration of the hand-holding member 80 and the protection member 83, in which (a) is a side view of the hand-holding member 80, and (b) is a sectional view taken along the line III-III.
The protection member 83 protects the user's hands and functions as a side wall attachment portion for attaching the side wall. The protection member 83 is fixed to the main body member 61 at a plurality of vertically separated positions (in this case, two positions) with bolts, rivets, or the like. Specifically, the first protection member 83 is fixed on the upper side at a predetermined distance from the upper end with bolts, rivets, or the like. This position is close to the grip portion 62. On the other hand, the second protection member 83 is fixed on the lower side at a predetermined distance from the lower end with bolts, rivets, or the like. This position is close to the reinforcing member 70.

The protection member 83 has a protection portion 84 and a mounting portion 65, which are integrally formed. Furthermore, the protection member 83 has a mounting hole 66 that opens upward and downward in order to insert the main body member 61 therein. The protection member 83 is made of a resin material such as polyethylene, and is integrally formed by injection molding. The protective member 83 is colored similarly to the protective member 63 of the third embodiment in order to improve visibility.

The protective portion 84 has a plurality of (here, four) protrusions 85a to 85d that protrude outward from the outer peripheral surface of the grip portion 62. The protrusions 85a to 85d extend radially from the axis of the mounting hole 66 at equal intervals of 90° about the vertical axis (center axis) of the mounting hole 66. Further, the outer outline of the protrusions 85a to 85d forms part of a substantially circular shape (hereinafter referred to as the circular shape of the protrusions 85a to 85d). The circular shapes of the protruding parts 85a to 85d have a larger outer diameter than the grip part 62. In particular, the outer diameters of the protruding portions 85a to 85d are such that the user's hand holding the grip portion 62 does not overlap and protrude from the protective portion 84 when viewed from above (the outer diameter is within the outer contour line when viewed from above). is set to Specifically, the circular outer diameter of the protrusions 85a to 85d is preferably in the range of 100 to 140 mm, more preferably in the range of 110 to 130 mm. However, the specific dimensions are not particularly limited.

Furthermore, the protective portion 84 has groove portions 86a to 86d that are recessed from the outside toward the center of the protective portion 84, that is, toward the inside, between the adjacent protrusions 85a to 85d. The grooves 86a to 86d are formed at equal intervals of 90° around the axis (center axis) of the mounting hole 66. The groove portions 86a to 86d vertically penetrate the protective portion 84. Further, the width of the grooves 86a to 86d (W shown in FIG. 11(b)) is set to a size in which a side wall, which will be described later, can be fitted therein. Further, the groove portions 86a to 86d have inclined or arcuate support portions 87a to 87d that widen and widen so that the groove width increases toward the outside.

Here, the main body member 61 is inserted into each mounting hole 66 of the first protection member 83 and the second protection member 83, and each mounting is performed at a predetermined position from the upper end of the main body member 61 and from a predetermined position from the lower end. The two protection members 83 can be fixed to the main body member 61 by fixing the portions 65 to the main body member 61 with bolts, rivets, or the like. At this time, the two protection members 83 are fixed to the main body member 61 in a state in which the respective grooves 86a to 86d overlap with each other in a plan view of the pusher member 80.

The user attaches the hand push member 80 to the trolley main body 20 by inserting the hand push member 80 with the protection member 83 and the reinforcing member 70 fixed to the main body member 61 into each insertion hole 23 of the corner member 22. I can do it. At this time, the reinforcing member 70 positions the grooves 86a to 86d in each hand pushing member 80 so that they are oriented in the front-rear direction and left-right direction of the transport vehicle 3, respectively. Further, in a plan view shown in FIG. 11(b), taking the hand push member 80b as an example, grooves 86a and 86b of the grooves 86a to 86d overlap with the truck main body 20 (see the two-dot chain line).

FIG. 12 is a perspective view showing an example of the configuration of the transport vehicle 3 to which side walls 90A to 90D are attached.
The side walls 90A to 90D have a rectangular plate shape, and cover the sides of the transport vehicle 3 from the front, rear, left and right sides, respectively. For example, plastic cardboard is used for the side walls 90A to 90D. 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 walls 90A to 90D may be made of plywood, veneer, or the like.

Here, the thickness of the side walls 90A to 90D is set to a size that allows them to be fitted into the grooves 86a to 86d. Further, the heights of the side walls 90A to 90D are approximately the same as the distance from the mounting plate 26 to the protection portion 84 of the protection member 83 located above. Further, the length of the side walls 90A and 90B (length in the left-right direction) is approximately the same as the length of the front frame portion 21a or the rear frame portion 21b. Further, the lengths of the side walls 90C and 90D (length in the front-rear direction) are approximately the same as the lengths of the right frame portion 21c or the left frame portion 21d.

Next, the case where the side walls 90A to 90D are attached to the transport vehicle 3 will be described. For convenience of explanation, when the side walls 90A to 90D are attached to the transport trolley 3, the upper side of the four rectangular sides of the side walls 90A to 90D is referred to as the upper side, the lower side is referred to as the bottom side, and the vertical side is referred to as the bottom side. The two sides are called sides.
First, the user maintains the sides of the side walls 90A to 90D so that they are vertical. Next, the user moves between the hand push member 80d and the hand push member 80a, between the hand push member 80a and the hand push member 80b, between the hand push member 80b and the hand push member 80c, and between the hand push member 80b and the hand push member 80c. Each of the side walls 90A to 90D is inserted from above between the member 80c and the pusher member 80d. At this time, the side walls 90A to 90D are inserted while being fitted into the grooves 86a to 86d of the hand pushing members 80a to 80d. By inserting the side walls 90A to 90D, the bottom sides of the side walls 90A to 90D are supported by the upper surface of the mounting plate 26 (or the frame portion).

In a state where the side walls 90A to 90D are supported on the mounting plate 26, each side of the side walls 90A to 90D is connected to the grooves 86a to 86d of the protection member 83 located above the push members 80a to 80d, and the lower side of the side walls 90A to 90D. It is fitted into the grooves 86a to 86d of the protection member 83 located at.
As shown in FIG. 11(b), taking the hand push member 80b as an example, one side of the side wall 90D is fitted into the groove 86a of the protection part 84 for both the upper and lower protection members 83, One side of the side wall 90B is fitted into the groove 86d of the protection portion 84. Similarly, the side edges of the push members 80a, 80b, and 80d are fitted into the two grooves 86a to 86d, respectively, at the upper and lower positions. Therefore, the side walls 90A to 90D are attached to the transport carriage 3 by the protection portions 84 of the push members 80a to 80d.

The transport cart 3 to which the side walls 90A to 90D are attached can accommodate objects to be transported within a space surrounded by the side walls 90A to 90D. By attaching the side walls 90A to 90D so as to cover the sides of the transport vehicle 3, the transport vehicle 3 can be run without dropping the objects to be transported. That is, the user can move the transport cart 3 by grasping the grip portion 62 of the hand-pushing member 80 with his or her hand. At this time, even if the user's hand H, which is gripping the hand push member 40 of the transport vehicle 3, approaches the object W, the protection part 84 of the upper protection member 83 comes into contact with the object W, so the grip The user's hand H holding the portion 62 is prevented or suppressed from coming into contact with the object W.

Further, the hand-pushing member 80 of this embodiment can support a plurality of hand-pushing members 80 in a stacked state when storing or transporting the hand-pushing members 80.
13A and 13B are diagrams showing a stacked state of the hand press members 80, in which (a) is a side view and (b) is a view seen from the direction of arrow A shown in (a).
As shown in FIG. 13(a), in order to stack the hand-push members 80, they are stacked in multiple stages so that they are parallel to each other with the longitudinal direction of each hand-push member 80 being horizontal. At this time, the hand press members 80 that are adjacent to each other in parallel are overlapped with each other in a staggered manner in the longitudinal direction of the hand press members 80 so that the protection members 83 do not overlap in the vertical direction.

As shown in FIG. 13(b), in the first stage hand-pushing member 80, two protrusions (here, protrusions 85b and 85c) of the protection portion 84 of the protection member 83 are in contact with the floor surface. Therefore, the first stage hand push member 80 is stably grounded on the floor surface. Next, the stacked second hand member 80 has a support part (here, the support part 87c) formed between the two protrusions (here, the protrusions 85b and 85c) of the protection part 84. is in contact with the outer circumferential surface of the main body member 61 of the first stage pusher member 80. In addition, the first-stage hand-pushing member 80 has a support portion (here, the support portion 87a) formed between the two protrusions (here, the protrusions 85a and 85d) of the protection portion 84; It contacts the outer circumferential surface of the main body member 61 of the hand push member 80 in the step, more precisely, the outer circumferential surface of the attachment portion 65 . In this way, when stacking a plurality of hand push members 80, the protection portion 84 of the hand push member 80 has support portions 87a to 87d for supporting the hand push members 80 that are adjacent to each other in parallel. Therefore, a plurality of push members 80 can be stacked stably.

Note that the hand push members 80 are not limited to being stacked in two stages, but may be stacked in three stages as shown by the two-dot chain line in FIG. 13, or may be stacked in four or more stages. Further, the support portions 87a to 87d are not limited to an inclined shape or an arc shape that expands so that the groove width increases toward the outside, but may have a shape that can support the main body member 61 of the adjacent hand push member 80. Good to have.

<Fifth embodiment>
Next, the configuration of the hand-pushing member according to the fifth embodiment will be described.
FIG. 14 is a diagram showing a configuration example of a hand-pushing member according to the fifth embodiment. The hand-pushing member 100 of this embodiment is an improved version of the hand-pushing member 60 described in the third embodiment, and the same components as the hand-pushing member 60 are given the same reference numerals, and the explanation thereof will be omitted. .

The hand-pushing member 100 includes a main body member 110, a protection member 63, and a reinforcing member 70, and is expandable and contractible in the longitudinal direction.
The main body member 110 has a first main body portion 111a and a second main body portion 111b. The first main body portion 111a and the second main body portion 111b are elongated and pipe-shaped members, and are made of, for example, an aluminum alloy. The first body portion 111a constitutes the upper side of the body member 110, and the second body portion 111b constitutes the lower side of the body member 110.

A protection member 63 is fixed at a predetermined position from the upper end of the first main body portion 111a. Further, the range from the upper end of the first main body portion 111a to the upper end of the protective member 63 functions as the grip portion 62. On the other hand, a reinforcing member 70 is fixed to the second main body portion 111b at a position close to the lower end with bolts, rivets, or the like.
Here, the first main body part 111a has an outer diameter smaller than the inner diameter of the second main body part 111b, and the second main body part 111b has an inner diameter larger than the outer diameter of the first main body part 111a. That is, the lower end of the first body part 111a can be inserted into the second body part 111b from the upper end side of the second body part 111b. Therefore, by changing the insertion length of the first body part 111a into the second body part 111b, that is, the overlapping length, the length in the longitudinal direction of the body member 110 can be expanded or contracted.

Further, the main body member 110 includes a holding mechanism 112 that holds the main body member 110 at an expanded and contracted length at a position where the first main body portion 111a and the second main body portion 111b overlap. The holding mechanism 112 includes a plurality of adjustment holes 113 formed on the outer peripheral surface of the first main body part 111a, one insertion hole 114 formed on the outer peripheral surface of the second main body part 111b, and a plurality of adjustment holes 113 and the insertion hole 114 formed on the outer peripheral surface of the second main body part 111b. It has an insertion pin 115 that is inserted into the hole 114. When holding the main body member 110 at a desired length, the main body member 110 is expanded and contracted, and then the insertion pin 115 is inserted through the insertion hole 114 and the adjustment hole 113, thereby holding the main body member 110 at the expanded and contracted length. can be retained.

In this way, the hand-push member 100 can be expanded and contracted in length in the longitudinal direction by the main body member 110. By expanding and contracting the length of the main body member 110, the position of the protective portion 64 of the protective member 63 can be adjusted in the vertical direction. Therefore, when using the protection part 64 as an indicator of the maximum loading height, the position of the protection part 64 can be adjusted up or down as necessary. For example, since the maximum loading height that can be stably traveled differs depending on the size of the truck body 20, the hand push member 100 is expanded or contracted depending on the size of the truck body 20 to be attached, and the maximum loading height is determined as an index. The protective portion 64 can be changed vertically. In addition, for example, since standards for the maximum loading height may differ depending on the organization (or construction site) to which the user belongs, manufacturers may also The hand push member 100 can be manufactured by changing the portion 64 up and down.

In this embodiment, a case has been described in which the holding mechanism 112 holds the main body member 110 at the expanded and contracted length by inserting the insertion pin 115 into the insertion hole 114 and the adjustment hole 113. However, this is not limited to this case. Any holding mechanism may be used as long as it can be held so that the length is not changed inadvertently.
Further, in this embodiment, the hand push member 100 that is made expandable and retractable is the hand push member 60 described in the third embodiment, but this is not limited to this case, and hand push members of other embodiments can be extended and contracted. You can also do this. When the hand press member 40 of the first embodiment is made expandable and retractable, the height of the grip portion 43 can be adjusted. Further, when the hand push member 80 of the fourth embodiment is made expandable and retractable, side walls having a height different from the heights of the above-mentioned side walls 90A to 90D can be attached.

<Sixth embodiment>
Next, the configuration of the hand-pushing member according to the sixth embodiment will be described.
The hand-push member 120 of this embodiment is an improved version of the hand-push member 80 described in the fourth embodiment. Here, the explanation will focus on the improved points, and the same components as the hand-pushing member 80 will be given the same reference numerals, and the explanation will be omitted as appropriate.

The hand-pushing member 120 includes a main body member 61 as a main body, a protection member 123, and a reinforcing member 70. Note that the same members as in the third embodiment can be used for the main body member 61 and the reinforcing member 70.
FIG. 15 is a perspective view showing a configuration example of the protection member 123.
The protective member 123 protects the user's hands and functions as a side wall attachment portion for attaching the side wall. The protection member 123 has a protection part 124.

The protective portion 124 has a plurality of (here, four) protrusions 85a to 85d that protrude outward from the outer peripheral surface of the grip portion 62.
Furthermore, the protective portion 124 has groove portions 126a to 126d that are recessed from the outside toward the center of the protective portion 84, that is, toward the inside, between the adjacent protrusions 85a to 85d. The grooves 126a to 126d are formed at intervals of approximately 90° about the axis (center axis) of the mounting hole 66. The groove portions 126a to 126d vertically penetrate the protective portion 124.

The grooves 126a to 126d of this embodiment are set so that two types of side walls having different thicknesses can be attached. Specifically, the groove width of the groove portions 126a and 126b is set to a dimension W1 in which a thick side wall can be fitted. Further, the width of the groove portions 126c and 126d is set to a dimension W2 in which a thin side wall can be fitted. The relationship between the dimension W1 and the dimension W2 is W1>W2. Here, when focusing on one groove, the groove width of the focused groove is approximately the same as the groove width of one of the adjacent grooves, and different from the groove width of the other groove.
Incidentally, the boundary between each of the grooves 126a to 126d and the upper surface of the protection portion 124 has an inclined portion 127 such that the groove width increases toward the top so that the side wall can be easily fitted from above.

Here, when the two protection members 123 are fixed to the main body member 61, they are fixed to the main body member 61 in a state in which the respective grooves 126a to 126d overlap in a plan view of the pusher member 120.
The user attaches the hand push member 120 to the trolley main body 20 by inserting the hand push member 120 with the protection member 123 and the reinforcing member 70 fixed to the main body member 61 into each insertion hole 23 of the corner member 22. I can do it. At this time, the reinforcing member 70 positions the grooves 126a to 126d of each hand-pushing member 120 in accordance with the thickness of the side wall attached to the carrier 3 so that they are oriented in the front-rear direction and the left-right direction of the carrier 3, respectively. .

FIG. 16 is a plan view for explaining the direction in which the hand push member 120 is positioned when attaching the thick side walls 91A to 91D to the transport cart 3. As shown in FIG. Here, for example, plastic cardboard or the like is used as the thick side walls 91A to 91D.
When attaching thicker side walls 91A to 91D, the pusher members 120 are positioned on the corner members 22 so that the grooves 126a and 126b of the protection portion 124 overlap the truck body 20. Therefore, among the protective parts 124 located at the four corners in a plan view, in the adjacent protective parts 124, the groove part 126a whose groove width is the dimension W1 and the groove part 126b whose groove width is the dimension W1 face each other.
The user can move between the groove 126a of the hand push member 120d and the groove 126b of the hand push member 120a, between the groove 126a of the hand push member 120a and the groove 126b of the hand push member 120b, and between the groove 126a of the hand push member 120b. Each of the side walls 91A to 91D is inserted from above between the groove 126b of the hand push member 120c and between the groove 126a of the hand push member 120c and the groove 126b of the hand push member 120d. Therefore, the thick side walls 91A to 91D are attached to the transport cart 3 by the protective portions 123 of the hand pushing members 120a to 120d.

FIG. 17 is a plan view for explaining the direction in which the hand push member 120 is positioned when attaching thin side walls 92A to 92D to the transport cart 3. As shown in FIG. Here, as the thin side walls 92A to 92D, for example, plywood or veneer of wood is used.
When attaching the thin side walls 92A to 92D, the push members 120 are positioned on the corner members 22 so that the grooves 126c and 126d of the protection portion 124 overlap the truck body 20. Therefore, among the protection parts 124 located at the four corners in a plan view, in the adjacent protection parts 124, the groove part 126c whose groove width is the dimension W2 and the groove part 126d whose groove width is the dimension W2 face each other.
The user can move between the groove 126c of the hand push member 120d and the groove 126d of the hand push member 120a, between the groove 126c of the hand push member 120a and the groove 126d of the hand push member 120b, and between the groove 126c of the hand push member 120b. Each side wall 92A to 92D is inserted from above between the groove 126d of the hand push member 120c and between the groove 126c of the hand push member 120c and the groove 126d of the hand push member 120d. Therefore, the thin side walls 92A to 92D are attached to the transport cart 3 by the protective portions 123 of the hand pushing members 120a to 120d.

In this way, side walls of different thicknesses can be attached to the grooves 126a to 126d of the protection member 123 of the hand push member 120, so by fitting the side walls into the grooves 126a to 126d that match the thickness of the side wall, the side walls can be fixed. This makes it possible to suppress wobbling of the grooves 126a to 126d.

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 the embodiments described above, and the embodiments may be combined. For example, the protection member 52 of the second embodiment may be attached to the upper end of the hand push member 60 of the third embodiment, the hand push member 100 of the fifth embodiment, or the like. 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 the first embodiment described above, a case has been described in which the protection member has the first protection part 44 and the second protection part 45. It is also possible to have a configuration in which there is no. Further, in the first to sixth embodiments, a case has been described in which the protection part is approximately circular in plan view, but the shape of the protection part in plan view is not limited to a circle. For example, it may be a polygon with rounded corners.
In the fourth and sixth embodiments described above, the case where the side wall is fitted into the groove of the protection part has been described, but the relationship between the groove and the part fitted into the groove may be reversed. That is, for example, a groove portion may be formed at the center of the plate thickness along the sides of the side wall, and a protrusion that is fitted into the groove of the side wall may be formed on the protective portion.

1 to 3: Transport trolley 20: Trolley body 30: Traveling section 40: Hand push member 41: Main body member 42: Protective member 43: Grip portion 44: First protective portion 45: Second protective portion 52: Protective member 54: Protective part 60: Hand member 61: Main body member 62: Grip part 63: Protective member 64: Protective part 70: Reinforcement member 80: Hand member 83: Protective member 85a to 85d: Projecting part 86a to 86c: Groove part 87a ~87d: Support part 90A~90D: Side wall 100: Hand push member 110: Main body member 111a: First main body part 111b: Second main body part 112: Holding mechanism 120: Hand push member 123: Protective member 124: Protective part 126a-126d: Groove

TECHNICAL FIELD The present invention relates to a hand-push member , a transport cart , and a protection member . In particular, the present invention relates to a hand-held member that protects a user's hand .

By the way, when moving the transport cart using the push bar, there is a possibility that the hand of the user who is grasping (holding) the push bar may come into contact with an object existing in the surrounding area, such as a wall.
The present invention was made in view of the above-mentioned problems, and an object of the present invention is to protect the user's hands.

The present invention is attached to the main body of a rectangular cart by inserting it into an upwardly opening insertion hole provided at four corners of the main body of the rectangular cart, and when running the cart, the user The hand-pushing member is for pushing by hand, and includes a pipe-shaped main body member that is linear from the lower end to the upper end and extends in the vertical direction; The present invention is characterized in that it includes a protection member having a protection portion that protrudes outward and protects the hand of a user who grips the hand-holding member .

According to the present invention, the user's hands can be protected .

Claims (10)

A hand-pushing member for a user to push with his/her hand when moving a transport trolley,
A hand-held member characterized by having a protective portion that protects the hand of a user who grips the hand-held member. It has a grip part,
The hand press member according to claim 1, wherein the protection portion is close to the grip portion and protrudes outward from an outer circumferential surface of the grip portion. It has an elongated main body,
The hand-held member according to claim 1 or 2, wherein the protection portion is provided on the main body and protrudes outward from an outer circumferential surface of the main body. 4. The hand-push member according to claim 3, wherein the protection part is arranged at a position apart from an end of the main body part. The hand-held member according to claim 3 or 4, wherein the protection part has a substantially circular shape larger than an outer diameter of the main body part. The protection part has a groove part into which a side wall for covering the side of the transport vehicle is fitted,
The hand-pushing member according to any one of claims 1 to 5, wherein the groove portion has a concave shape from the outside toward the center of the protection portion. Any one of claims 1 to 6, wherein the protection part has a support part that supports the main body parts of the adjacent hand-pushing members when the plurality of hand-pushing members are stacked in parallel. The hand-held member according to item 1. 8. The hand-held member according to claim 1, wherein the main body is expandable and retractable. The protection part has four groove parts at intervals of approximately 90°,
Claim 6 characterized in that, when focusing on one groove, the groove width of the focused groove is approximately the same as the groove width of one of the adjacent grooves, and is different from the groove width of the other groove. The hand-held member described in . a trolley body that is loaded with objects and runs by a running section;
A transporting trolley including a hand-pushing member provided on the trolley main body and pushed by a user's hand,
The hand-pushing member is characterized in that it has a protective portion that protrudes outward from the outer shape of the cart main body in a plan view of the transportation cart to protect the hand of a user who grips the hand-pushing member. Transport trolley.

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