JPH0681862U - Wheelbarrow for construction - Google Patents

Abstract

(57) [Summary] [Purpose] In the construction wheelbarrow 1, work safety is prevented by preventing the center of gravity from being unbalanced when the loading tray 2 is tilted and the sand or the like is slid out from the front end of the loading tray 2. Improve workability and reduce work fatigue. [Structure] In a construction wheelbarrow 1 having a single wheel 3 on a lower side of a loading tray 2 and having a rear end of an operating rod 4 extending rearward from both sides of a rear edge of the loading tray 2 as a grip 5. Handgrip 5
The structure is characterized in that a second grip portion 6 which is continuously provided from the rear end of the grip portion 5 through the rounded curved portion 8 and which is parallel to the grip portion 5 is provided below.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a construction wheelbarrow mainly used for carrying earth and sand and materials for construction.

[0002]

[Prior art]

 The construction wheelbarrow 1 has one wheel 3 on the lower side of the loading tray 2 for storing the earth and sand and materials for construction as shown in FIG. 4, and two operations extending rearward from both sides of the rear end of the loading tray 2 It has a structure in which a rod 4 is provided and the rear end of the operating rod 4 serves as a grip portion 5, and earth and sand etc. are put in the loading tray 2 and the grip portion 5 is gripped with both hands and transported by hand, and at the same time, the operating rod 4 is tilted upward to tilt the loading tray 2 so that the sand and materials in the loading tray 2 can be slid out from the front end of the loading tray 2 to be emptied. However, it is widely used because it can turn around easily and can be used easily.

[0003]

[Problems to be solved by the device]

 In the conventional wheelbarrow for construction as described above, when the loading tray 2 is tilted to empty the sediments in the loading tray 2, it is necessary to raise the operating rod 4 at a considerable angle, so refer to FIG. 4B. , While gripping the gripping part 5 from the upper side for carrying by hand, while lifting the gripping part 5 upward, release each hand one by one, and grasp from the underside of the gripping part 5. It is necessary to re-grip it with the opposite hand and push it up.

However, a construction wheelbarrow has a poor center of gravity stability as a unicycle, and since it often carries heavy earth and sand and other materials, the center of gravity balance of the loading tray 2 is rebalanced when it is gripped again. In order to prevent the risk of losing the balance and breaking the balance, it is necessary to exert special force to support the grip 5, etc., which is dangerous and may cause work fatigue. . And, especially when used by a woman, an elderly person or a petite person with weak physical conditions, the danger and work fatigue become more severe. The present invention provides a construction wheelbarrow that eliminates the above-mentioned conventional problems.

[0005]

[Means for Solving the Problems]

 The construction wheelbarrow for construction of the present invention that solves the above technical problem is "a single wheel is provided on the lower side of the loading tray, the operation rod is extended rearward from both sides of the rear end of the loading tray, and In the construction unicycle in which the rear end of the rod is used as the grip and the loading tray is tilted, the luggage is slid out from the front end of the loading tray, and the rear end of the grip is located below the grip. And a structure in which a second grip part is provided through the curved section, which is integrated, and when tilting the loading tray to slide out sediments to empty it, while inclining the loading tray Then, slide the hand that was holding the "grip part" during transportation to the position of the "second grip part" by sliding the above-mentioned arm bending part, and push up the "second grip part" as it is. It's supposed to be empty.

[0006]

[Action]

 In the construction wheelbarrow for construction of the present invention having the above configuration, the second grip portion, which is integrated with the rear end of the grip portion through the "R-shaped bent portion", exists below the grip portion that is gripped and pushed during transportation. When tilting the loading tray to slide out the soil and the like inside the loading tray, the "grip part" that was initially gripped should be held in proportion to the increase in the tilt angle of the loading tray. You can loosen your hand lightly and slide the "R-curved part" to the second grip, and push up on the second grip to make the loading tray in the final inclination. Therefore, it is not necessary to remove the hand from the grip and hold it with the other hand during tilting operation of the load tray. Special precautions for prevention are unnecessary and work becomes easier.

[0007]

【Example】

 Hereinafter, a detailed description will be given based on examples. First, referring to FIG. 1 showing an embodiment of the present invention, a unicycle wheel 3 is provided on the lower side of a pallet tray 2 in which earth and sand and materials for construction work are put, and from the rear end sides of the pallet tray 2 to the rear. The front end of the loading tray 2 is provided by providing two operating rods 4 that are inclined upward and extending, and the rear end of the operating rod 4 serves as a grip portion 5 that is gripped by the operator, and the loading tray 2 is tilted. In the construction unicycle 1 in which the earth and sand and materials in the loading tray 2 are slid out and emptied, a second grip portion 6 described in detail below is provided below the grip portion 5.

That is, the second grip portion 6 is integrated with the upper grip portion 5 by a single rod body that forms the operating rod 4 and has the rear end as the grip portion 5. It is continuous from the rear end through a radius bending portion 8 that is radius-curved at approximately 180 °, and is substantially parallel to the upper grip portion 5 and has a length sufficient for an operator to grasp and a grip portion 5 and Has an interval of. A stopper projection 9 is provided on the front edge of the second grip portion 6 in this embodiment to prevent the hand 7 holding the second grip portion 6 from slipping out.

Then, when the loading tray 2 is tilted and the sand and the like in the loading tray 2 is slid out from the front end of the loading tray 2 to be emptied, the hand 7 holding the grip portion 5 during transportation is removed. In proportion to the increase in the tilt angle of the loading tray 2, the grip of the hand 7 is slightly loosened, and the R-shaped bent portion 8 is slid in a gripped state to move to the second grip portion 6, and finally, the (2) Lift the grip portion 6 from diagonally below to operate the loading tray 2 in the final inclined posture. In the case of the above-mentioned embodiment, even if the operator is a woman, a person with a small body, or an elderly person with weak physical strength, there is the above-mentioned effect, and the loading tray 2 is tilted to remove heavy loads from the outside. There is very little danger of the center of gravity being out of balance when sliding out, improving work safety, less work fatigue, and improving work efficiency.

Next, another embodiment of the present invention will be described with reference to FIGS. That is, in the construction unicycle 1 having the same second grip portion 6 as that of the embodiment of FIG. 1, the one of FIG. 2 has a second grip integrally formed below the grip portion 5 via the radius bend portion 8. The front end of the portion 6 has a shape curled upward, and in the one shown in FIG. 3, the rear end of the operating rod 4 is formed into the second grip portion 6 and the rear end of the second grip portion 6 is moved to the upper end. A grip portion 5 is formed via a radius-bend portion 8 which is radius-bent. 2 and 3 are also used in the same manner as in the embodiment of FIG. Further, although not shown, the second grip portion 6 has a shape change such that the tip is extended and connected to the operation rod 4.

[0011]

[Effect of device]

 As described above, the construction wheelbarrow of the present invention is designed so that even if the operator is a woman, a person with a small body, or an elderly person with weak physical conditions, the luggage tray is tilted and the luggage is slid out. There is less risk of the center of gravity being out of balance when it is put out, and special attention is not required to prevent the center of gravity from being out of balance, which improves work safety, reduces work fatigue, and improves work efficiency. Has the effect of

[Brief description of drawings]

FIG. 1 shows a construction wheelbarrow according to one embodiment of the present invention,
(A) in the figure is a perspective view thereof, and (B) in the figure is a side view of the usage state thereof.

FIG. 2 is a side view of a construction wheelbarrow according to another embodiment of the present invention.

FIG. 3 is a side view of a construction wheelbarrow according to another embodiment of the present invention.

[Fig. 4] Fig. 4 shows a conventional construction wheelbarrow for construction, in which (A) is a perspective view thereof and (B) is a side view of its usage state.

[Explanation of symbols]

 1 Wheelbarrow for construction 2 Packing tray 3 Single wheel 4 Operating rod 5 Grip part 6 Second grip part 7 Hand 8 R-bending part

Claims (1)

[Scope of utility model registration request] 1. A single wheel is provided on the lower side of the loading tray, an operating rod is extended rearward from both sides of the rear end of the loading tray, and the rear end of the operating rod is used as a grip portion. By tilting the tray, in a construction unicycle where the luggage is slid out and emptied from the front end of the tray, below the grip,
A construction hand wheelbarrow having a structure in which a second grip portion is provided integrally with the rear end of the grip portion through a radiused bend portion.