JP3112153U - Hand cart - Google Patents

Abstract

Provided is a hand cart that can be folded as small as possible when it is not needed for storage or the like, and has a truss structure with a simple operation when used.
A quadrilateral is automatically made into two triangles by a quadrilateral assembled by a four-point link and a bracing function pipe that follows the diagonal of the quadrilateral through a guide pipe connected to one side of the quadrilateral by a pin. It is a four-wheel hand cart characterized by a truss structure that is strong when in use and features a mechanism that automatically removes the braces when stored and flattens them.
[Selection] Figure 1

Description

Detailed description of the invention

Technical fields belonging to the device

The present invention relates to a hand cart that can be folded and used for a wide range of purposes by using a chair and a walking aid for a healthy person and a person who needs care or a care recipient.

Conventionally, this type of car frame has many X and A type structures, and is a link structure that is a modification of the X / A type, so folding is convenient. There is a problem that the structure is not strong enough.
Prior published patents JP 2003-93452 JP 2003-164500
Real Kaihei 7-7639

Problems that the device tries to solve

The problem to be solved is to fold it as small as possible when stored, and to create a hand cart with a strong truss structure with simple operation when used.

Means to try to solve the problem

The present invention is a bracing function pipe that follows a quadrilateral that is assembled by a four-point link in which four basic pipes are connected by pins, and a diagonal line of the quadrilateral is connected through a pipe that is connected to one side by a pin. This is a hand cart that features a truss structure in which the quadrilateral is automatically made into two pseudo-triangles, so that it is strong when in use and is automatically flattened by removing the braces automatically when stored.

A quadrilateral is automatically assembled with a quadrilateral through a guide pipe that is assembled with a four-point link and a pin is connected to one of the four sides. A car having two forms: a structure and a structure in which the structure is released.

As shown in FIG. 1, the spindle frame 1 and the lower frame 3 attached to the lower part are connected via pins 2, the lower frame 3 and the vertical frame 5 are connected via a holder 4, and the vertical frame 5 and the upper frame 7 are connected. And the upper frame 7 and the spindle frame 1 constitute a pin-shaped quadrilateral via pins 8. Therefore, each side becomes various quadrilaterals by a pin or a holder that can freely rotate.

A bracing frame 13 is attached via a pin 12 below the spindle frame 1 so that the quadrilateral can be divided into pseudo triangles. The guide frame 15 is joined to the upper frame 7 with a pin 14 so that the bracing frame 13 is guided on the diagonal of the quadrilateral, and the guide ring 16 and the guide link 17 are connected to each other. Accordingly, a state in which the bracing frame 13 is guided diagonally in the process of opening from the folded state as shown in FIG. 4 and firmly fixed by the diagonal attachment / detachment holder 18 is shown in the upper right of FIG. The guide frame 15 also functions as a support for the stored items.

A lid frame 10 is attached to the upper frame 7 through a holder 9, and a seat mat 11 is attached to the lid frame 10. As shown in the upper left of FIG. 2, the lid frame 10 can be opened and closed in the direction of the arrow, and the lid frame 10 can be opened to store the item in the storage space 29 and can be closed to be seated or stacked.

Wheels A19 are attached to the spindle frame 1. The handle frame 20 attached to the spindle frame is stretched and adjusted in the direction of the arrow to determine a convenient position, and is fixed with a handle stretch position fixing screw 21.
When the brake handle 22 attached to the handle frame 20 is gripped as shown by the arrow as shown in the lower right of the figure, the brake wire 24 is used to press the outer periphery of the wheel A with the brake 23 as shown in the lower left of the figure. In order to maintain this state, the brake maintenance buckle 25 is restrained.
Moreover, if the brake maintenance buckle 25 is loosened and the brake handle 22 is made free, the wheel rotates freely.

As shown in the upper right diagram in FIG. 1, a fishhook-like frame to which the wheel B26 is attached is supported on the frame 5 so as to be angularly rotatable. The cross-sectional view at the lower left shows the mechanism of the direction changing connecting rod 27 that connects the connecting pins 28 standing on the fishhook-like frame so that the wheels B are aligned in the direction in which the driver is heading.

FIG. 3 is a view showing that it can be used when pulling the goods with the hand cart and pulling them in reverse.

FIG. 4 shows the folded state, which shows that it can be pushed and pulled when moving in the folded state, and when stored, the brake handle 22 can be pulled and the maintenance buckle 25 can be tightened to fix the wheel A. .

Effect of device

The present invention can provide a strong, convenient and easy-to-use hand cart for anyone by simple assembly and folding operation with a four-point link mechanism with wheels and a detachment structure of the bracing function.

Plane explanatory drawing of front, side, back and cross-section YY of the present invention Illustration of how to use the present invention Figure showing an example of use as a motorcycle Illustration of the folded state

Explanation of symbols

1 Spindle frame 2 Pins 1 and 3
3 Lower frame 4 Holder 3.5
5 Vertical frame 6 Holder 5 ・ 7
7 Upper frame 8 Pin 7.1
9 Holder 7 ・ 10
10 Lid Frame 11 Seat Mat 12 Pin 1 ・ 13
13 Bracing frame 14 Pin 7 ・ 16
15 Guide frame 16 Guide link 7 ・ 13
17 Guide links 13.15
18 Diagonal Desorption Holder 7 ・ 13
19 Wheel A
20 Handle frame 21 Handle extension position fixing screw 22 Brake handle 23 Brake 24 Brake wire 25 Brake maintenance buckle 26 Wheel B
27 Direction change connecting rod 28 Connecting pin 29 Storage space 30 Umbrella

Claims (1)

  It has a wide range of uses for transporting ordinary people's goods and assisting walking of care recipients. The basic structure is a flexible four-point link mechanism that uses a lightweight pipe and a flexible structure that is driven by this lightweight pipe. This is a hand cart that has a strong truss structure that is fixed by the bracing and can be folded by simply attaching and detaching the bracing. The spindle frame and the lower frame are connected by pins, and the lower frame The vertical frame and upper frame are connected by a holder, the vertical frame and upper frame are connected by a holder, and the upper frame and main shaft frame are connected by pins to form a four-point link mechanism, which is pin-joined below the main shaft frame. When the guide frame is pinned to the upper frame so that the bracing frame is approximately guided to the diagonal of the four-point link, the bracing frame and the upper frame are connected by the guide link. In addition, by connecting the bracing frame and the guide frame at an appropriate position with the guide link, the bracing frame is guided on the approximate diagonal line by following the four-point link and fixed by the diagonal attachment / detachment holder. A truss structure is formed, wheels are attached to this spindle frame and vertical frame, a handle that adjusts to the height, a direction change connecting rod of the wheel that smoothly follows the intention to drive, and a brake when the car is stationary It consists of a brake maintenance buckle that keeps it stationary, and can be pushed or pulled, and when stowed, it can be folded by releasing the diagonal attachment / detachment holder.

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