JP2019147561A - Push member and transport dolly - Google Patents

Abstract

To prevent user's hands from contacting with an object etc. around of a transport dolly.SOLUTION: The invention relates to a push member 40 for a user pushing a transport dolly 1 with a hand when the transport dolly 1 is run. The push member 40 has protection parts 44, 45 which protect the user's hand which grips the push member 40. The push member 40 also has a grip part 43. The protection parts 44, 45 are located close to the grip part 43 and protrude outward further than an outer peripheral surface of the grip part 43.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a hand holding member and a transport carriage. In particular, the present invention relates to a hand holding member that protects a user's hand from coming into contact with an object or the like in the vicinity of the carriage.

  Some transport carts used at construction sites have a configuration in which a single pipe can be inserted into the four corners of the main body of the transport cart. For example, Patent Document 1 discloses a transport cart in which corner members into which a single tube can be inserted as a hand bar are provided at four corners. If it is such a structure, the user of the conveyance trolley can use the single pipe | tube inserted in the main body of the conveyance trolley as a hand stick when the conveyance trolley moves.

JP 2010-159054 A

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

The present invention is a hand pressing member for a user to press with a hand when traveling the carriage, and has a protection part for protecting the user's hand holding the hand pressing member.
The present invention is a transporting carriage having a carriage main body loaded with a carriage and traveling by a traveling unit, and a hand pressing member provided on the carriage main body for a user to press by hand, The hand pressing member has a protection portion that projects outward from the outer shape of the cart main body in a plan view of the transport cart and protects the user's hand that has gripped the hand pressing member.

  According to the present invention, it is possible to prevent the user's hand from coming into contact with an object or the like around the transport carriage.

It is a figure which shows the structural example of the conveyance trolley | bogie of 1st Embodiment, and a hand pushing member. It is an external appearance perspective view which shows the structural example of a protection member typically. It is sectional drawing which shows the structural example of a protection member typically. 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 structural example of the protection member of 2nd Embodiment. It is a figure which shows the structural example of the conveyance trolley | bogie and hand pressing member of 3rd Embodiment. It is a figure which shows the structural example of a hand pressing member and a protection member. It is a figure which shows the structural example of a reinforcement member. It is a figure which shows the structural example of the conveyance trolley | bogie and hand pressing member of 4th Embodiment. It is a figure which shows the structural example of a hand pressing member and a protection member. It is a perspective view which shows the structural example of the conveyance trolley which attached the side wall. It is a figure which shows the state which piled the hand pushing member. It is a figure which shows the structural example of the hand pressing member of 5th Embodiment. It is a perspective view which shows the structural example of the protection member of 6th Embodiment. It is a figure which shows the structural example of the conveyance trolley which attached the side wall. It is a figure which shows the structural example of the conveyance trolley which attached the side wall.

  Below, the conveyance trolley | bogie and hand pressing member which concern on embodiment are demonstrated with reference to drawings. For convenience of explanation, the vertical direction of the hand pressing member and the protection member shown in the following embodiments is based on the direction in a state in which the hand pressing member is mounted on the carriage main body. Moreover, let the front-back direction of a conveyance trolley be the longitudinal direction of a conveyance trolley, and let the left-right direction be the transversal direction of a conveyance trolley. However, the transport cart of this embodiment can travel in any direction including front, rear, left and right.

<First Embodiment>
FIG. 1 is a diagram illustrating a configuration example of a transport cart and a hand pushing member according to the first embodiment.
The transport cart 1 includes a cart body 20, a traveling unit 30, and a hand pressing member 40.
First, the cart body 20 will be described.
The carriage main body 20 is configured by connecting a plurality of frame parts and the like, and loads a transported object. The cart body 20 has a rectangular shape in which the front-rear direction is the longitudinal direction and the left-right direction is the short direction in plan view. The cart 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, and the like. .

  As the front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d, for example, a rectangular hollow pipe made of aluminum alloy or the like can be used. The corner member 22 is made of an aluminum alloy formed by, for example, extrusion molding. The corner member 22 has an insertion hole 23 that opens upward, and a stopper portion 24 (see FIG. 8) that closes downward. The hand pressing member 40 is inserted into the insertion hole 23 of the corner member 22. The lower end of the hand pressing member 40 inserted into the insertion hole 23 is supported by the stopper portion 24.

The front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d are joined at four corners by the corner member 22 to form a rectangular four-side frame. A plurality of reinforcing frame portions 25 are attached to each other in the front-rear and left-right directions within the frame frame, and are configured in a lattice shape by being joined by screws, rivets, welding, or the like. For example, a rectangular hollow pipe made of an aluminum alloy, a plate with an uneven cross section, or the like can be used for the reinforcing frame portion 25.
The mounting plate 26 is a flat plate for loading a transported object. The mounting plate 26 is coupled to each frame portion and each reinforcing frame portion 25 via rivets and screws.

  The traveling unit 30 travels on the traveling surface while supporting the load of the cart body 20 and the transported item. The traveling unit 30 has a plurality of casters 31. In the present embodiment, the traveling unit 30 includes six casters including four casters 31 disposed at the four corners of the cart body 20 and two casters 31 disposed at the center in the front-rear direction and separated from each other in the left-right direction. Have Each of the casters 31 is attached to the carriage main body 20 via an attachment plate.

  The hand pressing member 40 is a member that the user presses with his / her hand when the transport cart 1 is caused to travel. The hand pressing member 40 has a long shape with a length of about 1000 mm. The hand pressing member 40 is attached to the carriage main body 20 by inserting the lower end into the insertion hole 23 of the corner member 22. The transport carriage 1 of this embodiment has four hand pressing members 40 and is inserted into the insertion holes 23 of the corner members 22. The four hand pressing members 40 have the same configuration. However, the present invention is not limited to the case where four hand pressing members 40 are attached, and one, two, or three hand pressing members 40 may be attached.

The hand pressing member 40 includes a main body member 41 as a main body portion and a protection member 42.
The main body member 41 is a long and pipe-shaped member. As the main body member 41, for example, a single pipe (single pipe pipe) can be applied. The single pipe is a general structural carbon steel pipe defined in JIS G 3444, and is a circular pipe having 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-like or tubular members can be applied.

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

2A and 2B are external perspective views schematically showing a configuration example of the protection member 42, where FIG. 2A is a diagram viewed from the diagonally upper side, and FIG. 2B is a diagram viewed from the diagonally lower side. FIG. 3 is a cross-sectional view schematically showing a configuration example of the protection member 42.
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 protective member 42 is formed with a mounting hole 46 that can be inserted into the upper end portion of the main body member 41 and opens downward (on the opposite side to the first protective portion 44 in the vertical direction). The protection member 42 is made of, for example, a resin material such as polyethylene, and is integrally formed by injection molding.

  The grip part 43 is substantially cylindrical and has a dimension that allows the user to grip (hold) the grip part 43 with one hand. For example, the length (vertical dimension) is preferably in the range of 100 to 200 mm, and more preferably in the range of 120 to 180 mm so that the user can hold it with one hand. Further, when a single tube is used for the main body member 41, for example, the outer diameter is preferably in the range of 50 to 60 mm. However, specific dimensions are not particularly limited. In addition, an uneven pattern for preventing slipping may be provided on the surface of the grip portion 43.

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 above and below the grip part 43. It is provided at the other end (lower side) of the direction.
Both the first protection part 44 and the second protection part 45 protrude outward from the outer peripheral surface of the grip part 43, and have an outer diameter larger than that of the grip part 43. In particular, the outer diameters of the first protection part 44 and the second protection part 45 are such that the user's hand H (finger) holding the grip part 43 in the plan view is in contact with the first protection part 44 and the second protection part 44. It is set to a dimension that does not overlap with the protection part 45 (it fits inside the outline in plan view). Specifically, for example, the outer diameters of the first protective part 44 and the second protective part 45 are preferably in the range of 100 to 140 mm, and more preferably in the range of 110 to 130 mm. However, specific dimensions are not particularly limited.

The first protection part 44 is substantially circular in a plan view, and has a tapered shape whose outer diameter decreases toward the upper side (the side opposite to the grip part 43). The side surface 47 (radially outer surface) of the first protection portion 44 is formed in a curved surface that bulges radially outward and obliquely upward in a side view. The upper surface 48 (surface opposite to the grip portion 43) of the first protection portion 44 is formed in a dome-shaped curved surface that bulges upward. The side surface 47 and the upper surface 48 of the first protection part 44 are smoothly connected by a curved surface. 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 portion 44 are smoothly connected by a curved surface. As described above, in the side view, the contour lines of the side surface 47 and the upper surface 48 of the first protection portion 44 are formed as curves.
However, the shape of the 1st protection part 44 is not limited to the shape mentioned above. For example, the shape of the first protection part 44 may be a disk shape or a substantially hemispherical shape that bulges upward.

The 2nd protection part 45 is the shape which reversed the 1st protection part 44 in the up-and-down direction. However, the shape of the 2nd protection part 45 is not limited to the shape mentioned above. For example, the shape of the second protection part 45 may be a disk shape or a substantially hemispherical shape that bulges downward.
The attachment hole 46 is a hole (concave part) into which the main body member 41 can be inserted, and the lower side (the second protection part 45 side) is opened. The inner diameter of the mounting 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 dimensions are set such that the protective member 42 does not easily separate from the main body member 41. The depth of the mounting hole 46 is not particularly limited, but is set to a depth that does not come off when a force is applied in the lateral direction at least 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 mounting hole 46 (see FIG. 1). The user can attach the hand pressing member 40 to the cart body 20 by inserting the hand pressing member 40 with the protection member 42 attached to the main body member 41 into the insertion hole 23 of each corner member 22. A person can move the carriage 1 by grasping the grip portion 43 of the hand pressing member 40 by hand.

  Here, the effect of the hand pressing member 40 according to the first embodiment will be described with reference to FIGS. 4 and 5. 4 and 5 are diagrams for explaining the effect of the hand pressing member 40. FIG. Specifically, FIG. 4 is a diagram schematically illustrating a state in which the upper end portion of the hand pressing member 40 approaches the object W such as a wall while the transport cart 1 is moving. FIG. 5 is a diagram schematically illustrating a state in which the plate material that is the transport object B of the transport cart 1 leans against the upper end portion of the hand pressing member 40.

  As shown in FIG. 4, the upper end portion of the hand pressing member 40 may approach an object W such as a wall while the transport cart 1 is moving. At this time, if the protective member 42 is not attached to the upper end portion of the main body member 41 and the user simply holds the upper end portion of the main body member 41 directly, the user's hand H (finger or back of the hand) is placed. The object W may be contacted or may be sandwiched between the main body member 41 and the object W. On the other hand, as shown in FIG. 4, when the protection member 42 is attached to the upper end portion of the main body member 41 and the grip portion 43 of the protection member 42 is gripped (if it is gripped), When the upper end portion approaches the object W, the first protection portion 44 and the second protection portion 45 come into contact with the object W, so that the user's hand H holding the grip portion 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 lean against the upper end portion of the hand pressing member 40. At this time, the user can secure a space for the user to hold the hand pressing member 40 by leaning the plate-shaped material as the transported material B against the first protection portion 44 of the protection member 42, and the user's hand H It can prevent or suppress that (especially a finger | toe) contacts the conveyed product B. FIG. Here, the side surface 47 of the first protective portion 44 is a curved surface that bulges upward obliquely, the upper surface 48 is a curved surface that bulges upward, and the side surface 47 and the upper surface 48 are smoothly curved. linked. For this reason, when the transported object B leans diagonally above the first protection part 44, the transported object B is received with a curved surface. Accordingly, the formation of contact marks on the transported object B is prevented or suppressed.

  In addition, the transported goods B of the transport cart 1 may move during transport and approach the upper end portion of the hand pressing member 40. Also in this case, the transported material B comes into contact with the hand H of the user holding the grip 43 by the moved transported B coming into contact with the first protective part 44 or the second protective part 45. Is prevented or suppressed. At this time, since the first protection portion 44 and the second protection portion 45 are not provided with a pointed portion toward the outer side in the radial direction, they are in contact with the first protection portion 44 and the second protection portion 45. It is prevented or suppressed that contact marks are formed on the conveyed product B.

  Thus, according to the hand pressing member 40 according to the first embodiment, the object W around the transport cart 1 and the transport cart 1 can be applied to the user's hand H holding the hand pressing member 40 of the transport cart 1. Is prevented or suppressed. Furthermore, even when the transported material B comes into contact with the protective member 42, the formation of contact marks on the transported material B is prevented or suppressed.

<Second Embodiment>
Next, the structure of the hand pressing member according to the second embodiment will be described with reference to FIG.
FIGS. 6A and 6B are diagrams schematically illustrating a configuration example of the protection member 52 in the hand pressing member according to the second embodiment, in which FIG. 6A is a view from above and FIG. 6B is a view from below. FIG. In addition, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 6, the protection member 52 has an insertion part 53 and a protection part 54, which are integrally formed. The protection member 52 is made of, for example, 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 be applied. For example, the dimensions are set such that the protective member 52 is not easily detached 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 on the upper side of the insertion part 53. The protection part 54 protrudes outside the outer peripheral surface of the main body member 41 to be applied. The protection unit 54 is, for example, substantially circular in plan view. The outer diameter of the protection part 54 is such that the user's finger holding the upper end of the main body member 41 does not protrude from the protection part 54 in a plan view (it fits inside the outer shape line of the protection part 54 in a plan view). Set to dimension. Specifically, the outer diameter of the protective part 54 is preferably in the range of 100 to 140 mm, and more preferably in the range of 110 to 130 mm. However, 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 in which the outer diameter becomes smaller toward the upper side (the side opposite to the insertion part 53). The side surface 57 of the protection part 54 is formed in a curved surface that bulges radially outward and obliquely upward in a side view. An upper surface 58 (a surface opposite to the insertion portion 53) of the protection portion 54 is formed in a dome-shaped curved surface that bulges upward. The side surface 57 and the upper surface 58 of the protection part 54 are smoothly connected by a curved surface. Thus, in the side view, the contour lines of the side surface 57 and the upper surface 58 of the protection portion 54 are curved. Further, the lower surface 59 (the surface facing the insertion portion 53) of the protection portion 54 may be a substantially flat surface. And the side surface 57 and the lower surface 59 of the protection part 54 are smoothly connected by the curved surface.

  Therefore, the protective member 52 can be attached to the main body member 41 by inserting the insertion portion 53 into the upper end portion of the main body member 41. The user can attach the hand holding member to the cart body portion 20 by inserting the hand holding member having the protective member 52 attached to the main body member 41 into the insertion hole 23 of the corner member 22. Thus, it is possible to move the transport carriage by grasping the main body member 41 close to the protection portion 54 as a grip portion. According to the second embodiment, the same effects as those of the first embodiment can be obtained.

<Third Embodiment>
Next, the structure of the conveyance trolley | bogie and hand pressing member which concern on 3rd Embodiment is demonstrated.
FIG. 7 is a diagram illustrating a configuration example of a transport carriage and a hand pushing member according to the third embodiment. In addition, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment, and the description is abbreviate | omitted.
The transport cart 2 includes a cart body 20, a traveling unit 30, and a hand pressing member 60.

The hand pressing member 60 includes a main body member 61 as a main body portion, a protection member 63, and a reinforcing member 70.
The main body member 61 is a long and pipe-shaped member. Unlike the first embodiment, the main body member 61 of the present embodiment is made of an aluminum alloy in order to reduce the weight, and is formed by extrusion molding. Further, the main body member 61 of the present embodiment has a different color from the cart main body portion 20, specifically the front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d in order to improve visibility. Is attached. For example, when the front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d are a metal color such as silver, a color different from the metal color, such as red, green, blue, etc. The three primary colors may be used, or orange or the like.
Further, the main body member 61 of the present embodiment is a circular tube having an outer diameter of, for example, 42 to 45 mm (here, 44 mm) so as to be easily grasped by the user, and having a smaller diameter than that of the first embodiment. Further, the main body member 61 of the present embodiment is reinforced in a cross shape in order to improve the strength. However, the main body member 61 is not limited to the above-described dimensions, and various rod-like and tubular members, the above-described single pipe, and the like can be applied.

FIG. 8 is a diagram illustrating a configuration example of the hand pressing member 60 and the protection member 63, where (a) is a side view of the hand pressing member 60, and (b) is a cross-sectional view taken along the line II.
The protection member 63 serves as an index that protects the user's hand and indicates the maximum loading height when the object is loaded. The protection member 63 is fixed with bolts, rivets, or the like at a position above the main body member 61 and at a predetermined distance from the upper end. 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 fixed at a position 120 to 180 mm away. Of the main body member 61, the range from the upper end of the main body member 61 to the upper end of the protection member 63 functions as the grip portion 62.
The protection member 63 has a protection part 64 and an attachment part 65, which are integrally formed. Further, the protection member 63 has a mounting hole 66 that opens up and down in order to insert the main body member 61 therein. The protective member 63 is made of a resin material such as polyethylene, and is integrally formed by injection molding. In order to improve the visibility, the protection member 63 is colored differently from the cart body 20, specifically the front frame 21a, the rear frame 21b, the right frame 21c, and the left frame 21d. For example, when the front frame portion 21a, the rear frame portion 21b, the right frame portion 21c, and the left frame portion 21d are a metal color such as silver, a color different from the metal color, such as red, green, blue, etc. The three primary colors may be used, or orange or the like. The protective member 63 has a color different from that of the main body member 61, but may be the same color.

The protection part 64 has a disk shape protruding outward from the outer peripheral surface of the grip part 62, and has a larger outer diameter than the grip part 62. In particular, the outer diameter of the protective portion 64 is set to a dimension such that the user's hand holding the grip portion 62 does not protrude over the protective portion 64 in a plan view (contains inside the outline in the plan view). Is done. Specifically, the outer diameter of the protective part 64 is preferably in the range of 100 to 140 mm, and more preferably in the range of 110 to 130 mm. However, specific dimensions are not particularly limited.
The attachment portion 65 has a cylindrical shape that extends downward from the lower end of the protection portion 64, and has an outer diameter that is larger than the main body member 61 and smaller than that of the protection portion 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 a bolt, a rivet, 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 mounting 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, the protection member 63 is attached to the main body member 61. Can be fixed.

The reinforcing member 70 is fixed with a bolt, a rivet or the like at a lower end of the main body member 61, specifically, at a position close to the lower end. The reinforcing member 70 reinforces the strength of the main body member 61 and suppresses backlash 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.
FIG. 9 is a view showing a configuration example of the reinforcing member 70, (a) is a sectional view taken along line II-II shown in FIG. 8 (a), and (b) is a view showing the insertion hole 23 of the corner member 22. It is.

As shown in FIG. 9A, the reinforcing member 70 is cylindrical and has an outer diameter larger than the outer diameter of the main body member 61. The reinforcing member 70 has a plurality of (here, two) bulging portions 71a and 71b, of which a part of the outer peripheral surface bulges in the radial direction. The bulging portions 71a and 71b protrude in the radial direction through a gentle inclined portion 72. Moreover, 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 a length that is substantially the same 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 up and down 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, the reinforcing member 70 is attached to the main body member 61. Can be fixed.

  On the other hand, as shown in FIG. 9B, the insertion hole 23 into which the reinforcing member 70 is inserted is surrounded by the flat surfaces 75a, 75b, and 75c and an arc surface 75d that is substantially the same as the circular curvature radius of the reinforcing member 70. It is. In addition, the insertion hole 23 has spaces 76a and 76b as recesses that allow the bulging portions 71a and 71b of the reinforcing member 70 to be inserted. Accordingly, the hand pressing member 60 is positioned at a predetermined position by inserting the reinforcing member 70 fixed to the main body member 61 into the insertion hole 23 by aligning the bulging portions 71a and 71b with the spaces 76a and 76b.

  The user attaches the hand pressing member 60 to the cart main body portion 20 by inserting the hand pressing member 60 in which the protection member 63 and the reinforcing member 70 are fixed to the main body member 61 into each insertion hole 23 of the corner member 22. Can do. The user can move the carriage 2 by grasping the grip portion 62 of the hand pressing member 60 by hand. According to the third embodiment, the same effects as those of the first embodiment can be obtained.

In this embodiment, since the main body member 61 having a smaller diameter than that of the single tube is used, 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 reinforce the decrease in strength due to the small diameter. Therefore, the strength of the hand pressing member 60 can be improved. However, the reinforcing member 70 may be fixed to the lower end of the main body member 61 even when a single pipe or a member other than the single pipe is used for the main body member 61.
In the present 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 and 75c and the circular arc surface 75d. Therefore, since the contact area with the insertion hole 23 is increased by interposing the reinforcing member 70 as compared with the case where the circular main body member 61 is simply inserted, there is a backlash between the insertion hole 23 of the corner member 22. Can be reduced.

Further, in the plan view shown in FIG. 8B, a part of the protection part 64 overlaps with the carriage main body part 20 (see the two-dot chain line). Accordingly, since the transported object and the protection unit 64 interfere with each other when the transported object is loaded on the cart body 20, it is possible to prevent the transported object from being loaded higher than the protection unit 64. That is, the protection unit 64 is an index indicating the maximum loading height. Therefore, the user can suppress an increase in the center of gravity of the transport cart 2 loaded with the transported object, and the user can cause the transport cart 2 to travel stably. In order to notify the user that the protection unit 64 is an index indicating the maximum loading height, the fact that the transported object cannot be loaded beyond the protection unit 64 is indicated by a sticker 60 or a carriage. It is attached to the main body 20 or the like.
The protective member 63 may be disposed so as to be rotatable with respect to the main body member 61 about the axis of the mounting hole 66 at a position away from the upper end of the main body member 61 by a predetermined distance. In this case, when the protection part 64 of the protection member 63 comes into contact with an object W such as a wall, the protection member 63 rotates, and an impact when the contact is made can be suppressed.

<Fourth Embodiment>
Next, the structure of the conveyance trolley | bogie and hand pressing member which concern on 4th Embodiment is demonstrated.
FIG. 10 is a diagram illustrating a configuration example of a transport carriage and a hand holding member according to the fourth embodiment. In addition, the same code | symbol is attached | subjected to the structure similar to 3rd Embodiment, and the description is abbreviate | omitted.
The transport cart 3 includes a cart body 20, a traveling unit 30, and hand pressing members 80 (80 a to 80 d).

The hand pressing member 80 includes a main body member 61 as a main body portion, a protection member 83, and a reinforcing member 70. The main body member 61 and the reinforcing member 70 can be the same members as those in the third embodiment.
FIG. 11 is a view showing a configuration example of the hand pressing member 80 and the protection member 83, (a) is a side view of the hand pressing member 80, and (b) is a sectional view taken along line III-III.
The protection member 83 functions as a side wall attaching portion for attaching the side wall while protecting the user's hand. The protection member 83 is fixed with bolts, rivets, or the like at a plurality of (two in this case) positions separated from each other in the vertical direction of the main body member 61. Specifically, the first protection member 83 is fixed on the upper side with a bolt, a rivet or the like at a predetermined distance from the upper end. This position is a position close to the grip portion 62. On the other hand, the second protection member 83 is fixed on the lower side with a bolt, a rivet or the like at a predetermined distance from the lower end. This position is a position close to the reinforcing member 70.

  The protection member 83 has a protection part 84 and an attachment part 65, which are integrally formed. Further, the protection member 83 has a mounting hole 66 that opens up and down 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 in the same manner as the protective member 63 of the third embodiment in order to improve visibility.

  The protection part 84 has a plurality of (here, four) protrusions 85 a to 85 d that protrude outward from the outer peripheral surface of the grip part 62. The projecting portions 85 a to 85 d are equally spaced by 90 ° with respect to an axis (center axis) along the vertical direction of the mounting hole 66, and extend radially from the axis side of the mounting hole 66 in the radial direction. In addition, the protrusions 85a to 85d are formed such that the outer outline is a part of a substantially circular shape (hereinafter referred to as a circle of the protrusions 85a to 85d). The circular shape of the projecting portions 85 a to 85 d has an outer diameter larger than that of the grip portion 62. In particular, the outer diameters of the protrusions 85a to 85d are dimensions such that the user's hand holding the grip part 62 does not protrude over the protection part 84 in a plan view (contains inside the outline in the plan view). Set to Specifically, the circular outer diameter of the protrusions 85a to 85d is preferably in the range of 100 to 140 mm, and more preferably in the range of 110 to 130 mm. However, specific dimensions are not particularly limited.

  Moreover, the protection part 84 has the groove part 86a-86d dented toward the center side of the protection part 84 from the outer side, ie, inner side, between adjacent protrusion parts 85a-85d. The groove portions 86a to 86d are formed at equal intervals of 90 ° with the axis line (center axis line) of the mounting hole 66 as the center. The groove portions 86a to 86d penetrate the protection portion 84 up and down. Moreover, the groove width (W shown in FIG. 11 (b)) of the groove portions 86a to 86d is set to a dimension capable of fitting a side wall described later. Furthermore, the groove portions 86a to 86d have inclined or arcuate support portions 87a to 87d that expand so that the groove width increases toward the outside.

  Here, the main body member 61 is inserted into the mounting holes 66 of the first protective member 83 and the second protective member 83, and the mounting is performed at a predetermined position from the upper end of the main body member 61 and at a predetermined position from the lower end. The two protective members 83 can be fixed to the main body member 61 by fixing the portion 65 to the main body member 61 with bolts, rivets or the like. At this time, in the plan view of the hand pressing member 80, the two protection members 83 are fixed to the main body member 61 in a state where the respective groove portions 86a to 86d are overlapped.

  The user attaches the hand pressing member 80 to the cart main body 20 by inserting the hand pressing member 80 in which the protection member 83 and the reinforcing member 70 are fixed to the main body member 61 into each insertion hole 23 of the corner member 22. Can do. At this time, the reinforcing members 70 are positioned so that the groove portions 86 a to 86 d in each hand pressing member 80 are oriented in the front-rear direction and the left-right direction of the transport carriage 3, respectively. Further, in the plan view shown in FIG. 11B, when the hand pressing member 80b is taken as an example, the groove portions 86a and 86b of the groove portions 86a to 86d overlap with the carriage main body portion 20 (refer to the two-dot chain line).

  FIG. 12 is a perspective view illustrating a configuration example of the transport carriage 3 to which the side walls 90A to 90D are attached. The side walls 90 </ b> A to 90 </ b> D have a rectangular plate shape and cover the side of the transport cart 3 from the front, rear, left, and right. For example, plastic corrugated cardboard is used for the side walls 90A to 90D. Plastic cardboard is a plate-like member made of plastic and having a hollow region, and is lightweight and excellent in rigidity. However, the side walls 90 </ b> A to 90 </ b> D may be made of wood plywood or veneer.

  Here, the plate | board thickness of side wall 90A-90D is set to the dimension which can be engage | inserted in the groove parts 86a-86d. Further, the height of the side walls 90A to 90D is substantially the same as the distance from the placement plate 26 to the protection portion 84 of the protection member 83 located on the upper side. Further, the length of the side walls 90A and 90B (the length in the left-right direction) is substantially the same as the length of the front frame portion 21a or the rear frame portion 21b. The lengths of the side walls 90C and 90D (length in the front-rear direction) are substantially the same as the length 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 carriage 3 will be described. For convenience of explanation, in a state where the side walls 90A to 90D are attached to the transport carriage 3, the upper side is the upper side among the four sides of the rectangle of the side walls 90A to 90D, the lower side is the bottom side, and the vertical side Two sides are called side sides.
First, the user maintains the side walls 90 </ b> A to 90 </ b> D so that the surfaces are vertical. Next, the user presses between the hand pressing member 80d and the hand pressing member 80a, between the hand pressing member 80a and the hand pressing member 80b, between the hand pressing member 80b and the hand pressing member 80c, and The side walls 90A to 90D are inserted from above between the member 80c and the hand pressing member 80d. At this time, the side sides 90A to 90D are inserted while being fitted into the groove portions 86a to 86d of the hand pressing members 80a to 80d. By inserting the side walls 90A to 90D, the bottoms 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, the side portions of the side walls 90A to 90D are the grooves 86a to 86d of the protective member 83 positioned above the hand pressing members 80a to 80d, and the lower side. Is fitted into the groove portions 86a to 86d of the protection member 83 located at the same position.
As shown in FIG. 11B, when the hand pressing member 80b is taken as an example, the side of one side of the side wall 90D is fitted into the groove 86a of the protection portion 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 part 84. Similarly, the side members of the hand pressing members 80a, 80b, and 80d are fitted into the two groove portions 86a to 86d at the upper and lower positions, respectively. Therefore, the side walls 90 </ b> A to 90 </ b> D are attached to the transport carriage 3 by the protection portions 84 of the hand pressing members 80 a to 80 d.

  The transport carriage 3 to which the side walls 90A to 90D are attached can accommodate a transported object in a space surrounded by the side walls 90A to 90D. By attaching the side walls 90 </ b> A to 90 </ b> D so as to cover the side of the transport cart 3, the transport cart 3 can be run without dropping the transported material. That is, the user can move the transport carriage 3 by grasping the grip portion 62 of the hand pressing member 80 by hand. At this time, even when the object W approaches the user's hand H holding the hand pressing member 40 of the transport carriage 3, the protective portion 84 of the upper protection member 83 contacts the object W, so that the grip The user's hand H holding the portion 62 is prevented or suppressed from contacting the object W.

Further, the hand pressing member 80 of the present embodiment can support the plurality of hand pressing members 80 in a stacked state when the hand pressing member 80 is stored or transported.
FIG. 13 is a view showing a state in which the hand pressing members 80 are stacked, (a) is a side view, and (b) is a view as seen from the direction of arrow A shown in (a).
As shown in FIG. 13A, in order to stack the hand pressing members 80, the hand pressing members 80 are stacked in a plurality of stages so that they are arranged in parallel with the longitudinal direction of each hand pressing member 80 being horizontal. At this time, the hand pressing members 80 that are adjacent in parallel are alternately staggered in the longitudinal direction of the hand pressing member 80 so that the protective member 83 does not overlap in the vertical direction.

  As shown in FIG. 13B, in the first-stage hand pressing member 80, the two protrusions (here, the protrusions 85b and 85c) of the protection part 84 of the protection member 83 are grounded to the floor surface. Therefore, the first-stage hand pressing member 80 is grounded in a stable state on the floor surface. Next, the stacked second-stage hand pressing member 80 is a support portion (here, the support portion 87c) formed between the two protrusion portions (here, the protrusion portions 85b and 85c) of the protection portion 84. Is in contact with the outer peripheral surface of the main body member 61 of the first-stage hand pressing member 80. Further, the first-stage hand pressing member 80 has two support portions (here, the support portions 87a) formed between two protrusion portions (here, the protrusion portions 85a and 85d) of the protection portion 84. It contacts the outer peripheral surface of the main body member 61 of the stepped hand pressing member 80, more precisely, the outer peripheral surface of the mounting portion 65. As described above, when the plurality of hand pressing members 80 are stacked, the protection portion 84 of the hand pressing member 80 includes the support portions 87a to 87d for supporting the hand pressing members 80 adjacent in parallel. Therefore, the plurality of hand pressing members 80 can be stably stacked.

  The hand pressing members 80 are not limited to being stacked in two stages, but may be stacked in three stages as indicated by a two-dot chain line in FIG. 13 or may be stacked in four or more stages. In addition, the support portions 87a to 87d are not limited to the case where the support portions 87a to 87d are inclined or arcuate so that the groove width is widened toward the outside. I just need it.

<Fifth Embodiment>
Next, the structure of the hand pressing member according to the fifth embodiment will be described.
FIG. 14 is a diagram illustrating a configuration example of the hand pressing member according to the fifth embodiment. The hand pressing member 100 of this embodiment is an improvement of the hand pressing member 60 described in the third embodiment, and the same components as those of the hand pressing member 60 are denoted by the same reference numerals, and the description thereof is omitted. .

The hand pressing member 100 includes a main body member 110, a protection member 63, and a reinforcing member 70, and can be expanded and contracted in the longitudinal direction.
The main body member 110 includes a first main body 111a and a second main body 111b. The 1st main-body part 111a and the 2nd main-body part 111b are elongate and pipe-shaped members, for example, are made from an aluminum alloy. The first main body portion 111 a constitutes the upper side of the main body member 110, and the second main body portion 111 b constitutes the lower side of the main body member 110.

As for the 1st main-body part 111a, the protection member 63 is fixed to a predetermined position from an upper end. Further, the range from the upper end of the first main body 111 a to the upper end of the protection member 63 functions as the grip portion 62. On the other hand, in the second main body 111b, the reinforcing member 70 is fixed at a position close to the lower end with a bolt, a rivet or the like.
Here, the first main body 111a has an outer diameter smaller than the inner diameter of the second main body 111b, and the second main body 111b has an inner diameter larger than the outer diameter of the first main body 111a. That is, the lower end of the first main body 111a can be inserted into the second main body 111b from the upper end of the second main body 111b. Therefore, the length in the longitudinal direction of the main body member 110 can be expanded and contracted by changing the length for inserting the first main body 111a into the second main body 111b, that is, the overlapping length.

  In addition, the main body member 110 includes a holding mechanism 112 that holds the main body member 110 at an extended 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 portion 111a, a single insertion hole 114 formed on the outer peripheral surface of the second main body portion 111b, the adjustment hole 113, and the insertion holes. It has the insertion pin 115 inserted through the hole 114. When the main body member 110 is held at a desired length, the main body member 110 is expanded and contracted, and the insertion pin 115 is inserted into the insertion hole 114 and the adjustment hole 113 so that the main body member 110 is expanded and contracted. Can be held.

  In this way, the hand pressing member 100 can be expanded and contracted 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 protection portion 64 of the protection member 63 can be adjusted in the vertical direction. Therefore, when using the protection unit 64 as an index of the maximum loading height, the position of the protection unit 64 can be adjusted up and down as necessary. For example, since the maximum stacking height at which the vehicle can travel stably varies depending on the size of the cart body 20, the handhold member 100 is expanded and contracted according to the size of the cart body 20 to be attached. The protection part 64 can be changed up and down. In addition, for example, since the standard of maximum loading height may be different for each organization (or construction site) to which the user belongs, the manufacturer is protected as an index of the maximum loading height for each organization (or construction site). The hand pressing member 100 can be manufactured by changing the portion 64 up and down.

In the present embodiment, a case has been described in which the holding mechanism 112 holds the main body member 110 at an extended length by inserting the insertion pin 115 through the insertion hole 114 and the adjustment hole 113. However, the present invention 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 inadvertently changed.
In the present embodiment, the hand pressing member 100 in which the hand pressing member 60 described in the third embodiment can be expanded and contracted has been described. However, the present embodiment is not limited to this, and the hand pressing member of other embodiments can be expanded and contracted. It may be. When the hand pressing member 40 of the first embodiment is made extendable, the height of the grip portion 43 can be adjusted. Moreover, when the hand pressing member 80 of the fourth embodiment is made extendable, a side wall having a height different from the height of the side walls 90A to 90D described above can be attached.

<Sixth Embodiment>
Next, the structure of the hand pressing member according to the sixth embodiment will be described.
The hand pressing member 120 of this embodiment is an improvement of the hand pressing member 80 described in the fourth embodiment. Here, it demonstrates centering around the improved point and the structure similar to the hand pushing member 80 attaches | subjects the same code | symbol, etc., and abbreviate | omits description suitably.

The hand pressing member 120 includes a main body member 61 as a main body portion, a protection member 123, and a reinforcing member 70. The main body member 61 and the reinforcing member 70 can be the same members as those in the third embodiment.
FIG. 15 is a perspective view illustrating a configuration example of the protection member 123.
The protection member 123 functions as a side wall attachment part for attaching a side wall while protecting a user's hand. The protection member 123 has a protection part 124.

The protection part 124 has a plurality of (here, four) protrusions 85 a to 85 d that protrude outward from the outer peripheral surface of the grip part 62.
Moreover, the protection part 124 has the groove parts 126a-126d dented toward the center side of the protection part 84 from the outer side, ie, the inner side, between the adjacent projecting parts 85a-85d. The groove portions 126a to 126d are formed at an interval of approximately 90 ° with the axis (center axis) of the mounting hole 66 as the center. The groove parts 126a to 126d penetrate the protection part 124 vertically.

The groove portions 126a to 126d of the present embodiment are set so that two types of side walls having different plate thicknesses can be attached. Specifically, the groove widths of the groove portions 126a and 126b are set to a dimension W1 capable of fitting a thick side wall. Further, the groove widths of the groove portions 126c and 126d are 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 paying attention to one groove part, the groove width of the noticed groove part is substantially the same as the groove width of one groove part among adjacent groove parts, and is different from the groove width of the other groove part.
In addition, in the boundary between each groove part 126a-126d and the upper surface of the protection part 124, it has the inclination part 127 so that a groove width may spread, so that a side wall can be easily fitted from an upper side.

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 where the respective groove portions 126 a to 126 d overlap in the plan view of the hand pressing member 120.
The user attaches the hand pushing member 120 to the cart body 20 by inserting the hand pushing member 120 in which the protection member 123 and the reinforcing member 70 are fixed to the body member 61 into each insertion hole 23 of the corner member 22. Can do. At this time, according to the plate thickness of the side wall attached to the transport carriage 3, the reinforcing members 70 are positioned so that the groove portions 126a to 126d in each hand pushing member 120 are directed in the front-rear direction and the left-right direction of the transport carriage 3, respectively. .

FIG. 16 is a plan view for explaining the direction in which the hand pressing member 120 is positioned when the thick side walls 91 </ b> A to 91 </ b> D are attached to the transport carriage 3. Here, as the side walls 91A to 91D having a large plate thickness, for example, plastic cardboard or the like is used.
When attaching the thick side walls 91 </ b> A to 91 </ b> D, the hand holding member 120 is positioned on the corner member 22 so that the groove portions 126 a and 126 b of the protection portion 124 overlap with the cart body portion 20. Therefore, among the protective portions 124 positioned at the four corners in plan view, adjacent protective portions 124 face each other the groove portion 126a having the groove width W1 and the groove portion 126b having the groove width W1.
The user can connect the groove 126a of the hand pushing member 120d and the groove 126b of the hand pushing member 120a, between the groove 126a of the hand pushing member 120a and the groove 126b of the hand pushing member 120b, and the groove 126a of the hand pushing member 120b. The side walls 91A to 91D are inserted from the upper side between the groove 126b of the hand pressing member 120c and between the groove 126a of the hand pressing member 120c and the groove 126b of the hand pressing member 120d. Therefore, the thick side walls 91 </ b> A to 91 </ b> D are attached to the transport carriage 3 by the protection part 123 of the hand pressing members 120 a to 120 d.

FIG. 17 is a plan view for explaining a direction in which the hand pressing member 120 is positioned when the thin side walls 92 </ b> A to 92 </ b> D are attached to the transport carriage 3. Here, as the thin side walls 92A to 92D, for example, a wood plywood or a single plate is used.
When attaching the thin side walls 92 </ b> A to 92 </ b> D, the hand holding member 120 is positioned on the corner member 22 so that the groove portions 126 c and 126 d of the protection portion 124 overlap with the carriage main body portion 20. Therefore, of the protective portions 124 located at the four corners in plan view, adjacent protective portions 124 face each other a groove portion 126c having a groove width of dimension W2 and a groove portion 126d having a groove width of dimension W2.
The user can connect the groove 126c of the hand pressing member 120d and the groove 126d of the hand pressing member 120a, between the groove 126c of the hand pressing member 120a and the groove 126d of the hand pressing member 120b, and the groove 126c of the hand pressing member 120b. The side walls 92A to 92D are inserted from the upper side between the groove 126d of the hand pressing member 120c and between the groove 126c of the hand pressing member 120c and the groove 126d of the hand pressing member 120d. Therefore, the thin side walls 92A to 92D are attached to the transport carriage 3 by the protective portions 123 of the hand pressing members 120a to 120d.

  As described above, since the groove portions 126a to 126d of the protection member 123 of the hand holding member 120 can be attached with side walls having different plate thicknesses, by inserting the side walls into the groove portions 126a to 126d matching the plate thickness of the side walls, And rattling of the grooves 126a to 126d can be suppressed.

  As mentioned above, although each embodiment of this invention was described in detail with reference to drawings, the said embodiment only showed the specific example in implementation of this 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 pressing member 60 of the third embodiment, the hand pressing member 100 of the fifth embodiment, or the like. The present invention can be variously modified without departing from the spirit thereof, and these are also included in the technical scope of the present invention.

In the first embodiment described above, the case where the protection member has the first protection part 44 and the second protection part 45 has been described. However, the first protection part 44 or the second protection part 45 is provided. There may be no configuration. Moreover, although the 1st-6th embodiment demonstrated the case where a protection part was substantially circular by planar view, the shape of planar view of a protection part is not limited to circular. For example, it may be a polygon with rounded corners.
In the above-described fourth and sixth embodiments, the case where the side wall is fitted into the groove portion of the protection portion has been described, but the relationship between the groove portion and the portion fitted into the groove portion may be reversed. That is, for example, a groove portion may be formed in the center of the plate thickness along the side of the side wall, and a protrusion fitted into the groove on the side wall may be formed on the protective portion.

  1-3: Carriage truck 20: Carriage body part 30: Traveling part 40: Hand pressing member 41: Main body member 42: Protection member 43: Grip part 44: First protection part 45: Second protection part 52: Protection member 54: Protection part 60: Hand pressing member 61: Main body member 62: Grip part 63: Protection member 64: Protection part 70: Reinforcing member 80: Hand pressing member 83: Protection member 85a to 85d: Protrusion part 86a to 86c: Groove part 87a ˜87d: support portion 90A˜90D: side wall 100: hand pressing member 110: main body member 111a: first main body portion 111b: second main body portion 112: holding mechanism 120: hand pressing member 123: protection member 124: protection portion 126a-126d: Groove

Claims (10)

A hand pushing member for a user to push with a hand when traveling the carriage,
A hand pushing member having a protection part for protecting a user's hand holding the hand pushing member. Having a grip part,
The hand pressing member according to claim 1, wherein the protection portion is close to the grip portion and protrudes outward from an outer peripheral surface of the grip portion. It has a long body part,
The hand pressing member according to claim 1, wherein the protection part is provided on the main body part and protrudes outward from an outer peripheral surface of the main body part.   The hand pressing member according to claim 3, wherein the protection portion is disposed at a position away from an end portion of the main body portion.   The hand pressing member according to claim 3 or 4, wherein the protection part is substantially circular larger than an outer diameter of the main body part. The protective part has a groove part into which a side wall for covering a side of the transport carriage is fitted,
The hand pressing member according to any one of claims 1 to 5, wherein the groove portion has a shape recessed from the outside of the protection portion toward the center side.   The said protection part has a support part which supports the main-body part of the said adjacent hand pressing member, when it piles up in the state in which the said several hand pressing member was put in parallel, The any one of Claim 1 thru | or 6 characterized by the above-mentioned. The hand pressing member according to item 1.   The hand pressing member according to any one of claims 1 to 7, wherein the main body is extendable and contractible. The protective portion has four groove portions at an interval of approximately 90 °,
7. When paying attention to one groove part, the groove width of the noticed groove part is substantially the same as the groove width of one of the adjacent groove parts, and is different from the groove width of the other groove part. The hand pressing member described in 1. A carriage main body that carries a transported object and travels by a traveling unit;
A carriage provided on the carriage main body, and having a hand pushing member for a user to push by hand,
The hand pressing member has a protection portion that projects outward from the outer shape of the cart main body portion in a plan view of the transport cart and protects the user's hand holding the hand pressing member. Carriage truck.

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