JPH054819Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a wheelchair.

[Conventional technology]

Conventionally, as shown in FIG. 5, a pair of armrests 9 are attached to both sides of the seat 8 of the wheelchair 1 so as to be rotatable left and right, and when a person gets on or off the wheelchair 1, the armrests 9 are moved outward as shown by the dotted line. Open to.

[The problem that the idea attempts to solve]

However, in the case of the above conventional configuration, bed B
There was a problem in that when the wheelchair 1 was placed next to the wheelchair 1 or when the wheelchair 1 was placed in a space with narrow left and right sides, the armrest 9 interfered with the bed B or the wall and could not be opened.

[Means to solve the problem]

As a means for solving the above-mentioned conventional problems, the present invention has a structure in which armrests 9' are attached to both sides of the seat part 8 so as to be rotatable upward from the horizontal use state, and the armrests 9 have a shielding plate 9J. It consists of a U-shaped frame 9A that is stretched, and the rear lower end of the frame 9A is pivotally connected to the wheelchair 1 body, and in the horizontal use state, the front lower end 9D is lockably supported by the wheelchair 1 body. The present invention provides a wheelchair 1 that can be used as a wheelchair.

[Action/Effect]

Since the armrest 9 of the wheelchair 1 is made of a U-shaped frame 9A, the person using the wheelchair 1 is stably supported, there is no risk of falling, and the shield 9
With J, there is no danger that the user's clothes will protrude from the armrest 9 and get caught in the wheels or the like. Further, since the armrest 9 is locked in the horizontal use state, when the wheelchair 1 is taken down from a step, etc., the wheelchair 1 can be lifted up by grasping the armrest 9 with the hands. When getting on and off the wheelchair 1, the armrest 9 is rotated upward from the horizontal use state around the rear lower end, so the armrest 9 can be completely removed from the side of the seat 8, and the armrest 9 can be removed from the side of the wheelchair 1. Even if there is a bed, wall, etc., the armrest 9 will not interfere with these objects. Therefore, it is extremely convenient when a sick person, an elderly person, etc. is transferred from the wheelchair 1 to a bed.

〔Example〕

To explain the present invention with reference to an embodiment shown in FIGS. 1 to 4, the wheelchair 1 includes a pair of left and right upper frames 2, a pair of left and right lower frames 3, a pair of left and right front frames 4, Pair of left and right rear frames 5
A pair of front and rear X-shaped frames 6 connect the upper left frame 2 and the lower right frame 3, and the upper right frame 2 and the lower left frame 3, and A seat part 8 that extends across the seat part 8, a pair of armrests 9 that are arranged on both sides of the seat part 8, a backrest part 10 that spans over the upper part of the pair of left and right rear frames 5, and A handle portion 11 formed by bending the upper end portions of the rear frame 5, a footrest support frame 12 formed by bending the front portions of the pair of left and right upper frames 2 downward, and the footrest A pair of left and right footrests 13 are attached to the lower end of the support frame 12 so as to be movable up and down, and a bearing 14 is attached to the lower end of the pair of left and right front frames 4 so as to be rotatable in the left and right directions. a supported front wheel 15;
A rear wheel 17 is rotatably attached to the lower end of the pair of left and right rear frames 5 via a shaft 16, and the armrest 9 is attached to the U-shaped frame 9.
A and a cushion 9B attached to the upper side of the frame 9A, and the lower rear end of the frame 9A is rotatably attached to the rear frame 5 of the main body of the wheelchair 1 via a shaft 9C. 9A
As shown in Fig. 4, the lower front end 9D of the front end 9D is flattened, and a fitting groove 9E is formed from the lower edge. The upper edge of the lock piece 9G, which is bent in a direction, is pivoted to the lower front end 9D, and the lock piece 9G is biased inwardly by a spring 9I fitted on the outside of the bolt 9F. On the other hand, an engagement bolt 18 is provided protruding from the front frame 4 of the main body of the wheelchair 1. Furthermore, a shielding plate 9J is stretched over the frame 9A.

In the above configuration, since the armrest 9 is composed of the U-shaped frame 9A, the user of the wheelchair 1 is stably supported by the upper side and front side of the frame 9A. Also, the shielding plate 9J of the armrest 9
This reliably prevents the user's clothes from protruding from the armrest 9 and getting caught in the rear wheel 17 or the like. When a person gets on and off the wheelchair 1 from either the left or right side, the armrest 9 on the side where the person gets on and off the wheelchair
from the horizontal use state shown in Figure 1 to the shaft 9 at the lower rear end.
It is rotated upward about C, and the entire seat is removed from the side surface of the seat 8 as shown by the dotted line in FIGS. 2 and 3. In the usage state shown in FIG. 1, the engagement bolt 1 of the front frame 4 is inserted into the fitting groove 9E of the flat part of the front lower end 9D of the frame 9A of the armrest 9.
8 is fitted, and the lock hole 9H of the lock piece 9G is engaged with the engagement bolt 18, so the armrest 9 is securely fixed to the wheelchair 1 body, and when the wheelchair 1 is taken down stairs etc. Wheelchair 1 can be lifted using 9 as a clue.
To put the armrest 9 in the removed state, open the lock piece 9G outward with your fingers, remove the engagement bolt 18 from the lock hole 9H, and then move the armrest 9 upward through the frame 9A around the shaft 9C. Rotate. In this way, the armrest 9 can be completely removed by rotating it upward, so even if there is a bed B or a wall on the side of the wheelchair 1, as shown in FIG. The armrest 9 does not interfere with the wheelchair, so that, for example, a sick person or an elderly person can move from the wheelchair 1 to the bed extremely easily. When returning the armrest 9 from the removed state shown in FIG. 2 to the used state, by rotating the armrest 9 downward about the shaft 9C via the frame 9A, the lower front end 9D of the frame 9A of the armrest 9 Since the lower edge of the lock piece 9G is bent outward, it is pushed outward by the engagement bolt 18 of the front frame 4, and the engagement bolt 18 is engaged with the lower front end 9D of the frame 9A. After fitting into the groove 9E, the lock piece 9G is returned inward by the biasing force of the spring 9I, and the engagement bolt 18 engages with the lock hole 9H of the lock piece 9G. In this way, the armrest 9 is automatically fixed in use.

Other than this embodiment, the armrest 9 may be rotated downward from the used state to be in the removed state.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention, and Figure 1 is a side view of the armrest in use;
2 is a side view with the armrest removed, FIG. 3 is a front view, FIG. 4 is an exploded view of the vicinity of the front lower end of the armrest frame, and FIG. 5 is a plan view of the conventional example. In the figure, 1...wheelchair, 8...seat, 9...armrest, 9J...shield.

Claims (1)

[Scope of utility model registration request] The armrests are attached to both sides of the seat so that they can rotate upwards from the horizontal use state, and the armrests consist of a U-shaped frame with a shield stretched over it, and the lower rear end of the frame is attached to the wheelchair. A wheelchair, characterized in that the wheelchair is pivotally attached to a main body, and the lower front end is lockably supported by the wheelchair main body in a horizontal use state.