JPH1159433A - Lever attaching structure and dolly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satisfactorily prevent a user's finger from being caught between a lever body and a bracket which supports the lever body. SOLUTION: A base end 5a of a lever body 5 is rotatably supported by means of a support shaft 4 penetrates through opposed supporting walls 31, 31 of a bracket. A safety cover is arranged so as to cover a rotation area of the lever body base end 5a for preventing a user's finger from entering the rotation area of the base end 5a. A spacer is arranged on one side surface of the lever body 5 in its rotational direction, so as to keep a specified clearance between the side surface and the safety cover during rotation of the lever body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod mounting structure in which a rod is rotatably supported by a bracket via a support shaft.
And a manual carrier provided with the rod mounting structure.

[0002]

2. Description of the Related Art A bed C provided with wheels B and a bed C
And a pair of brackets D, D attached to the bracket, and a hand-pressed inverted U-shaped rod F whose base end is rotatably supported by the brackets D, D via a support shaft E. 10 and 11. As shown in FIGS. 8 and 9, a rod mounting structure used for a manual transport vehicle or the like includes a pair of support walls d1 and d1 facing each other at appropriate intervals and ends of the support walls d1 and d1. A rod F whose base end is rotatably supported via a support shaft E between the support walls d1 and d1 of the substantially U-shaped brackets D and D provided with connection walls d2 connecting the parts. A fixed restricting body G for restricting the rotation of the rod F to one side, and a spring H
And a control rod K for turning the movable body J against the biasing force of the spring H. I have.

Rotation is restricted by a fixed restrictor G and a movable restrictor J, as shown in FIG. 9, and a pushing rod F, which protrudes greatly from the bed, is rotated as shown in FIG. In this case, the movable rod J is rotated by operating the operating rod K by stepping on the foot, and the rotational restriction of the rod F by the movable restrictor J is released. As shown in FIG. In the case of rotating the rod F so as to overlap the bed C and restricting the rotation of the rod F, the rod F is rotated in the direction of arrow Y in FIG. Movable restraint J
The movable constraint J is rotated against the force of the spring H, and the fixed constraint G and the movable constraint J rotate the rod F at a position beyond the movable constraint J. The movement is restricted.

[0004]

In the rod mounting structure constructed as described above, since the base end of the rod is only rotatably supported between the support walls of the bracket, the rotation of the rod is restricted. In the state where is released, the finger of the hand may be attached to the bracket portion. In addition, the finger of the hand attached to the bracket part may enter the rotation area of the rod base end.

However, if the rod is inadvertently rotated to the rotation restricting side with the finger of the hand attached to the bracket part in the rotation area of the rod base end as described above, Fingers of the hand attached to the part may be pinched between the bracket and the rod.

For example, in the case of a manual transport vehicle, a manual transport vehicle loaded on a wagon, truck or the like in a state where the rod for pushing the hand is rotated to the rotation restraining release side so as to overlap with the loading platform is used. When gripping the front and rear ends of the manual carrier and lowering it from the carrier, the fingers of one hand gripping the rear end may be attached to the bracket portion so as to enter the rotation area of the rod base end, In this state, when the rod is inadvertently rotated to the rotation restricting side by the other hand gripping the front end, the finger of the hand attached to the bracket portion is pinched between the bracket and the rod. Sometimes.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and covers the outside of the rotation range of a base end of a rod rotatably supported by a bracket via a support shaft. By providing a safety cover that prevents fingers from entering the
It is an object of the present invention to configure a rod mounting structure hand which can prevent fingers of a hand from being caught between a bracket and a rod, and a manual transport vehicle provided with the rod mounting structure.

[0008]

According to a first aspect of the present invention, there is provided a rod mounting structure in which a base end portion of a rod is interposed between support walls of a bracket provided with support walls opposing each other at an appropriate distance. In the rod mounting structure rotatably supported, a safety cover for covering a rotation area of the base end is provided.

According to a second aspect of the present invention, there is provided a rod mounting structure, wherein a spacer is provided on one side in the rotation direction of the rod so as to maintain a predetermined interval between the one side and the safety cover during the rotation of the rod. It is characterized by being provided.

According to a third aspect of the present invention, there is provided a manual carrier comprising: a carrier provided with wheels; a bracket attached to the carrier and provided with opposing support walls at appropriate intervals; and a support shaft provided between the support walls. And a rod having a base end rotatably supported through the base member, wherein a safety cover is provided to cover a rotation area of the base end.

According to a fourth aspect of the present invention, there is provided a manual carrier having a spacer on one side in the rotation direction of the rod, which keeps a predetermined distance between the one side and the safety cover during the rotation of the rod. Is provided.

In the first invention and the third invention, since the safety cover is provided to cover the rotation area of the rod base end,
Even if a finger of a hand may be attached to the bracket portion in a state where the rotation constraint of the rod is released, it is possible to effectively prevent the finger from entering the rotation area of the rod base end. Therefore, it is possible to effectively prevent fingers of the hand from being pinched between the bracket and the rod.

According to the second and fourth aspects of the present invention, a spacer is provided to keep a predetermined distance between one side surface in the rotation direction of the rod and the safety cover during the rotation of the rod. Even when the fingers of the hand attached to the bracket part protrude from the safety cover to the rod side in a state in which the rotation restraint of the rod is released, the protruding fingers are caught between the safety cover and the rod. Can be effectively prevented.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIGS. 1 and 2 show a first embodiment of a rod mounting structure. FIG. 1 is a perspective view showing a state in which the rod is rotated so as to be rotatable, and FIG. 2 restricts the rotation of the rod. FIG. 3 is a perspective view of only a safety cover, and FIGS. 4 and 5 show a second embodiment of a rod mounting structure. FIG. FIG. 5 is a perspective view of a state in which the rotation of the rod is restrained, FIG. 6 is a perspective view of the spacer, and FIG. 7 is a perspective view of a manual carrier equipped with the rod mounting structure. (A) is a perspective view showing a state where the rod is turned to be rotatable, and (b) of FIG. 7 is a perspective view showing a state where the rotation of the rod is restrained.

A manual carrier A shown in FIG. 7 has a rectangular loading platform 2 provided with wheels 1.
And a pair of left and right brackets 3, 3 attached to the rear end of the loading platform 2 and provided with opposing support walls 31, 31 at appropriate intervals, and a support shaft 4 between the support walls 31, 31. U-shaped rod 5 whose base end is rotatably supported via
And

Since the right and left mounting structures of the rod 5 are the same, only one will be described, and the other description will be omitted.
The rod mounting structure according to the first embodiment includes a pair of support walls 31, 31 facing each other at appropriate intervals, and the support walls 3.
A substantially U-shaped bracket 3 provided with a connecting wall 32 for connecting one end of each of the first and third ends 31, and a cylinder having a base end 5 a rotatably supported between the supporting walls 32 via a supporting shaft 4. Rod 5, a rod-shaped fixed restricting body 6 for restricting the rotation of the rod 5 to one side in the rotational direction, and a linear spring 7 biased to the other side in the rotational direction of the rod 5. , A control rod 9 for rotating the movable constraint body 8 against the biasing force of the spring 7, and a rotation cover for covering the rotation range of the base end portion 5 a of the rod. Safety cover 20 that prevents fingers from entering the range of motion
And

The bracket 3 is formed in a substantially U-shape by bending a metal plate.
The support shaft 4 is attached to an end opposite to the support shaft 4. Between the support shaft 4 and the connection wall 32, a pivot shaft 11 for rotatably supporting the movable constraint body 8 and the fixing shaft The restraining members 6 are provided at predetermined intervals, and further, between the pivot shaft 11 and the fixed restraining member 6, there are provided elongated guide holes 33 for guiding the operating rod 9.

The bracket 3 is configured to be mounted on the carrier 2 by inserting the mounting pins 12 into through holes (not shown) formed in the connecting wall 32.

The rod 5 is made of a cylindrical pipe.
The base end portions 5a, 5a have through holes 5 intersecting with the length direction.
1 and 51 are provided, and the support shaft 4 is inserted into the through holes 51 and 51.

The movable restraint member 8 opposes the support walls 31 at a distance smaller than the opposing distance between the support walls 31, 31.
A pair of side pieces 81, 81 having a through hole (not shown) through which the first piece 1 is inserted, and a connecting piece 83 connecting these side pieces 81, 81 and having a contact portion 82 with the rod 5 are provided. Then, both ends of the spring 7 wound and supported on the pivot shaft 11 are received by the connecting pieces 83, and an intermediate portion of the spring 7 is brought into contact with the connecting wall 32 of the bracket 3, so that the movable constraint body 8 is moved. Arrow X in FIG.
Biased in the direction. Further, one of the side pieces 81 is provided with a fitting hole through which the operation rod 9 is inserted and supported.

As shown in FIGS. 1 to 3, the safety cover 20 includes a first main body 21 extending in a direction intersecting the length direction of the rod 5 when the rotation of the rod 5 is restrained. A second main body portion 22 which is bent from one end of the first main body portion 21 and extends in the longitudinal direction of the rod 5, a pair of first mounting pieces 23, 23 provided continuously with the first main body portion 21, and a second main body portion 22, a pair of second mounting pieces 24, 24 connected to the first mounting piece 23,
The support shaft 4 is inserted into through holes 25, 25 formed in
Also, through holes 26 formed in the second mounting pieces 24, 24,
26, each of the pivot shafts 11 is inserted into the safety cover 20.
Is attached to the bracket 3.

The first main body 21 of the safety cover 20 is provided with a semicircular curved concave portion 27 corresponding to one side surface 5b in the rotation direction of the rod 5 whose rotation is restricted.

The operation rod 9 has movable restraint members 8, both ends of which are supported by a pair of left and right brackets 3, 3.
The operating rod 9 can be operated against the force of the spring 7 by stepping on the operating rod 9 with one foot, for example.

The rod mounting structure according to the first embodiment having the above-described structure is, for example, as shown in FIG.
Attached to. In this mounting, a pair of left and right brackets 3, 3 provided with the fixed restraint 6, the movable restraint 8, and the safety cover 20 between the support walls 31, 31 are mounted on the loading platform 2 by the mounting pins 32. The base ends 5a, 5a on both ends of the rod 5 are rotatably mounted between the support walls 31, 31 by support shafts 4, 4. In this case, the safety cover 20 is provided outside the rotation range of the base ends 5a, 5a of the rod 5 to prevent a finger from entering the rotation range of the base ends 5a, 5a. For example, when lowering the manual carrier A loaded on a wagon, a truck, or the like while holding the front and rear ends of the manual carrier A in a state where the rod 5 is rotated so as to overlap the loading platform 2, Even if one hand gripping the end is sometimes attached to the bracket 3, the finger of this one hand can be reliably prevented from entering the rotation area of the rod base end.

Therefore, in a state where one hand for gripping the rear end is attached to the bracket 3, the rod 5 is inadvertently turned to the rotation restricting side by the other hand for gripping the front end. The fingers of the one hand are
And the rod 5 can be effectively prevented from being caught.

Next, a second embodiment of the rod mounting structure will be described with reference to FIGS. The second embodiment is different from the first embodiment in that one side surface 5b in the rotation direction of the rod 5 is provided.
In addition, a spacer 10 is provided.
This is the same as the embodiment. Therefore, the detailed description is omitted and the same reference numerals are given.

The spacer 10 is formed so as to bulge out with respect to one side surface 5b in the rotation direction of the rod 5 in an arc around the rotation center of the rod 5 as a fulcrum. The space between the curved concave portions 27 can be maintained at a small interval while the rod 5 rotates by a predetermined angle.

The spacer 10 shown in FIG.
Cylindrical body 1 having an insertion hole 13a inserted through the base end 5a
3 is formed integrally with one side surface, and the spacer 10 is provided on one side surface 5b in the rotation direction of the rod 5 by inserting the support shaft 4 into the radial through hole 13b provided in the cylindrical body 13. .

The spacer 10 is provided with a plurality of grooves 10a extending in the length direction at predetermined intervals in the width direction.
The contact resistance of the safety cover 20 when it comes into contact with the curved concave portion 27 is reduced. The spacer 10
May be formed integrally with the cylindrical body 13 as shown in FIG. 6, or may be formed integrally with the rod 5, for example, or may be formed separately from the rod 5 in an arc shape to form an adhesive, welding, etc. May be configured to be coupled by the coupling means. The spacer 10 is mainly made of synthetic resin, but may be rubber or metal, and the material is not limited.

When the spacer 10 is provided as in the second embodiment, the space between the one side surface 5b in the rotating direction of the rod 5 and the curved concave portion 27 of the safety cover 20 extends over the period when the rod 5 rotates. Since one side 5b can be kept at a small interval,
Also, it is possible to reliably prevent a finger from entering between the curved concave portions 27. Therefore, for example, when lowering the manual carrier A loaded on a wagon, a truck or the like while gripping the front and rear ends of the manual carrier A in a state where the rod 5 is rotated so as to overlap the carrier 2. Even if one hand holding the rear end is attached to the bracket 3, it is possible to reliably prevent the finger of this one hand from entering the rotation area of the rod base end 5a. it can. Therefore, with one hand gripping the rear end attached to the bracket 3,
Even when the rod 5 is inadvertently rotated to the rotation restricting side by the other hand gripping the front end, it is effective that the finger of the one hand is pinched between the bracket 3 and the rod 5. Can be prevented.

In the above-described embodiment, an example in which the rod mounting structure is applied to a manual transport vehicle has been described. However, the rod mounting structure of the present invention can be applied to products other than the manual transport vehicle. Yes, and the applicable products are not particularly limited.

[0032]

As described in detail above, according to the first and third aspects of the present invention, since the safety cover for covering the rotation area of the rod base end is provided, the rotation restriction of the rod is released. In this state, even if a finger of the hand may be attached to the bracket portion, the finger can be effectively prevented from entering the rotation range of the rod base end portion, so that the finger of the hand is And the rod can be effectively prevented from being caught.

In the second and fourth aspects of the present invention, since the spacer is provided between one side surface of the rod in the rotation direction and the safety cover, the rotation restriction of the rod is released.
Even when the fingers of the hand attached to the bracket part protrude from the safety cover to the rod side, it is possible to effectively prevent the protruding fingers from being caught between the safety cover and the rod.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a rod mounting structure according to the present invention, and is a perspective view showing a state where a rod is turned to be rotatable.

FIG. 2 is a perspective view showing the first embodiment of the rod mounting structure according to the present invention, in a state where rotation of the rod is restricted.

FIG. 3 is a perspective view of only a safety cover of the rod mounting structure according to the present invention.

FIG. 4 is a perspective view showing a second embodiment of the rod mounting structure according to the present invention, in a state where the rod is turned to be rotatable;

FIG. 5 is a perspective view showing a second embodiment of the rod mounting structure according to the present invention, in a state where rotation of the rod is restricted.

FIG. 6 is a perspective view of a spacer of the rod mounting structure according to the present invention.

FIGS. 7A and 7B are perspective views of a manual carrier provided with a rod mounting structure according to the present invention, wherein FIG. 7A is a perspective view of a state in which the rod is turned to be rotatable, and FIG. It is a perspective view in the state where rotation was restrained.

FIG. 8 shows a conventional example, and is a perspective view of a state in which a rod is turned to a rotatable state.

FIG. 9 shows a conventional example, and is a perspective view in a state where rotation of a rod is restricted.

10A and 10B show a conventional example of a manual carrier equipped with a rod mounting structure, wherein FIG. 10A is a perspective view of a state in which the rod is turned to be rotatable, and FIG. It is a perspective view of the state where it was restrained.

[Explanation of symbols]

 A manual carrier 2 carrier 3 bracket 31 support wall 4 support shaft 5 rod 5a base end 10 spacer 20 safety cover

Claims (4)

[Claims] 1. A rod mounting structure in which a base end portion of a rod is rotatably supported via a support shaft between said support walls of a bracket provided with support walls facing each other at an appropriate interval. A rod mounting structure provided with a safety cover for covering an end rotation area. 2. A spacer is provided on one side in the rotation direction of the rod so as to maintain a predetermined distance between the one side and the safety cover during the rotation of the rod. Rod mounting structure. 3. A carrier provided with wheels, a bracket attached to the carrier and provided with opposing support walls at appropriate intervals, and a base end portion turned between the support walls via a support shaft. A manual transport vehicle comprising a movably supported rod and a safety cover for covering a rotation area of the base end. 4. A spacer is provided on one side in the rotation direction of the rod so as to keep a predetermined distance between the one side and the safety cover during the rotation of the rod. Manual truck.