JP2022049626A - Caster with stopper - Google Patents

Abstract

To provide a caster with stopper which can stop free movement back and forth and left and right without requiring a special stopping device in a handcart or the like of a caster with omnidirectional moving wheels.SOLUTION: A caster comprises a stopper which simultaneously stops two motions of rotational motion that an omnidirectional moving wheel 100 advances in a cross direction around a horizontal rotary shaft 2 fixed to a support member 1 and rotational motion that the wheel advances in a longitudinal direction around a rotary shaft 104 of three or more barrel-shaped rollers 101 alternately arranged equally on a circumference of R side and L side. The support member 1 and stop levers 5R, 5L engage with each other at irregularities 1a, 5a provided around each shaft hole 1c, 5c. At the time of disengagement due to oscillation of the stop levers 5R, 5L around the rotary shaft 2, the stop levers 5R, 5L horizontally move around the rotary shaft 2 to L side and R side of the omnidirectional moving wheel 100 at a height H of bulge of the convex 5a of the stop levers 5R, 5L along inner walls on both sides of the support member 1, thereby simultaneously pressing a brake shoe 9 and a stop plate 3, and all barrel-shaped rollers 101 are pressure-welded with the stop plate 3, whereby the omnidirectional moving wheel 100 is stopped.

Description

The present invention relates to a stopper provided on a caster of an omnidirectional movable wheel (100).

The existing omnidirectional movable wheel is a wheel that is adopted for hobbies, robots, etc. without resistance due to the swing of the conventional universal caster, and enables accurate positioning. However, in the case of a push cart with omnidirectional moving wheels, the omnidirectional moving wheels move freely back and forth and left and right, such as when the floor is not horizontal. It is necessary to select the model according to the size of the load to be put on the trolley, and the current situation is that it is installed at a position different from the casters.

Utility model registration No. 3227162 Public relations

An object of the present invention is to provide a caster with a stopper that does not require a special stop device, eliminates unstable movement in the front-rear, left-right direction, regardless of the position to be stopped in a push cart or the like of an omnidirectional movable wheel.

The omnidirectional moving wheel 100 travels in the front-rear direction around two horizontal rotating shafts fixed to the support member 1, and three or more barrels alternately arranged on the R side and the L side. It is a caster capable of two rotational movements that proceed in the left-right direction around the rotary shaft 104 of the mold roller 101, and is provided with a stopper that stops the two rotary movements at the same time, and the support member 1 and the stopper levers 5R and 5L are Engage with each shaft hole 1c, 1c, 5c, 5c, and unevenness 1a, 1a, 5a, 5a provided around the shaft hole 1c, 1c, 5c, 5a, and when the engagement is canceled by swinging the stopper levers 5R, 5L around the rotating shaft twice. Along the inner walls on both sides of the support member 1, the brake levers 5R, 5L, convex 5a, 5a, and the bulge height H of the omnidirectional moving wheel 100 brake horizontally around the rotation shaft 2 times on the L side and R side. By moving the levers 5R and 5L, the brake shoes 9 and 9 and the stop plates 3 and 3 arranged next to each other are simultaneously pressed, and the stop plates 3 and 3 press and contact all the barrel-shaped rollers 101. This is solved by a caster with a stopper, which is characterized in that the omnidirectional movable wheel 100 is stopped.

By applying the stopper of the present invention to the casters, stable stopping is possible at all times regardless of the condition of the floor, so that it is safe and can be applied to push carts, shopping carts, strollers, wagons and the like.

It is an exploded view of the caster with a stopper in the Example of this invention. It is a perspective view of the caster with a stopper in an Example of this invention. It is a front view (a) and the line cross section AA (b) at the time of releasing the stopper of the caster with a stopper in the Example of this invention. It is a front view (a) and the line cross section BB (b) at the time of the stopper of the caster with a stopper in the Example of this invention. 3 (a), (b), (c) are three views of the omnidirectional moving wheel used in the present invention.

In FIG. 1A, the support member 1 has several unevennesses 1a and 1a around rotating shaft holes 1c and 1c on both side surfaces, and two swinging elongated holes 1b and 1b and one each. The variable L-shaped slot 1d, 1d for lever lock has been opened, and the lock release side length for lock pins 12, 12 in FIG. 1 (b) is shown in the variable L-shaped slot 1d, 1d for lever lock. The stopper levers 5R and 5L in FIG. 1C, which are provided with holes 1x and 1x and long holes 1y and 1y on the lock side, respectively, have irregularities 5a provided around the rotary shaft holes 5c and 5c. The swing pins 10 and 10, which are engaged with the support member 1 of FIG. 1A by 5a, are also arranged on both sides of the rotary shaft holes 5c and 5c at two locations around each, and are fixed by welding or the like. It is guided by the swing holes 1b and 1b of the support member 1 in FIG. 1 (a).

The swing pins 10 and 10 in FIG. 1 (c) swing around the rotating shafts of the stopper levers 5R and 5L, and at the same time, the stopper levers 5R and 5L are moved by the coil springs 13 and 13 in FIG. 1 (b). The coil spring 13 is urged outward based on the flat washers 14 and 14 of FIG. 1 (b) on the outer surface of the support member 1 so as not to rattle with respect to the support member 1 of FIG. 1 (a). The retaining rings 11 and 11, which also serve as guides for 13, are E-rings to prevent the coil springs 13 and 13 from coming off.

Further, the stopper levers 5R and 5L of FIG. 1C are provided with long holes 5d and 5d for locking, and are shown together with the variable L-shaped long holes 1d and 1d for lever locking of the support member 1 of FIG. 1A. 1 (b) lock pins 12, 12, which are responsible for guiding the movement to the unlock positions 1x, 1x, 5x, 5x, and the lock positions 1y, 1y, 5y, 5y, and the retaining rings 16, 16. Is an E-ring that holds the lock pins 12 and 12 to the support member 1 and prevents rattling.

The connecting rod 7 of FIG. 1 (c) has stopper levers 5R and 5L arranged on both sides connected so as to be movable in the horizontal direction, and the handle 8 fitted to the connecting rod 7 is provided in a state of idling and is provided as a stopper. The stop wheels 15 and 15, which regulate the movement of the levers 5R and 5L toward the omnidirectional movable wheel 100 side, are E-rings to prevent the connecting rod 7 from coming off from the stopper levers 5R and 5L.

The rotary shaft 2 of FIG. 1 (d) is fixed to the support member 1 of FIG. 1 (a) with a nut 4, and the rotary shaft 2 of FIG. 1 (b) is connected between the support member 1 and the omnidirectional movable wheel 100. Collars 6 and 6 are fitted, and stopper levers 5R and 5L, brake shoes 9 and 9, and stop plates 3 and 3 are fitted around the outer diameter thereof, respectively, and the R side and L of the omnidirectional movable wheel 100 are fitted. The stops plates 3, 3 and 3 are narrowly held on both sides of the side, and blades extending radially around the rotation shaft 2 are provided for the number of blades on one side of the barrel-shaped roller 101, and the length is shorter than the radius of the omnidirectional moving wheel 100. One or more blades having a pressure welding blade and having a hole 3a between the pressure welding blade and the pressure welding blade to be fitted with the head of the fixing bolt 103 of the stopper 102 for preventing the rotation shaft 104 from coming off. By holding the stop plates 3, 3 and the omnidirectional movable wheel 100, they are held at a fixed position around the rotating shaft 2, and the individually extending radial pressure welding blades are always pressed against the fixed barrel roller 101. , Stop the rotation traveling in the left-right direction.

The perspective view of FIG. 2 shows the stopper released state of the caster 50 with a stopper, the rotating shaft 2 is inserted through the support member 1, and the stopper levers 5R and 5L engage with the support member 1 around the rotating shaft 2 and are long. Using the holes 1b and 1b as guides, swinging is restricted by pins 10 and 10, and the coil springs 13 and 13 are guided and urged to the outside of the support member 1 with the flat washers 14 and 14 as the base, with respect to the support member 1. It is a figure which shows that the backlash is eliminated, and the lock pin 12 is held by the support member 1 with respect to the variable L-shaped elongated hole 1d for lever lock, and is in the unlocked state.

FIG. 3 shows the position 1n when the stopper is released and the line cross section AA (b) in the front view (a) of the caster 50 with a stopper. At the position of, the state of waiting together with the unlocked side slot 5x of the slot 5b of the stopper lever 5R is shown, and the support member 1 and the stopper levers 5R and 5L are uneven 1a in the line cross section AA (b). 1a, 5a, 5a, and the stop plates 3, 3 are engaged with each other, and the stop plates 3 and 3 are not in contact with all the barrel-shaped rollers 101, indicating a no-load state.

FIG. 4 shows the position 1z at the time of stopper and the line cross section BB (b) of the front view (a) of the caster 50 with a stopper, and the lock pin 12 at the time of stopper is located at the position of the long hole 1y on the lock side of the support member 1. It is located together with the lock side slot 5y of the lock slot 5b of the stopper lever 5R. At this time, even if the wheel 100 is forcibly rotated in the stopper release direction 1w by an external force, the position of the stopper lever 5R is from the stopper position 1z. One part horizontally elongated on the lock side elongated hole 1y side of the lock variable L-shaped elongated hole 1d of the support member 1 so as not to return to the stopper release position 1n is moved so that the lock pin 12 is blocked. I try not to.

When the stopper is released by the stopper lever 5R, it swings around the rotating shaft 2 at that time, and the lock pin 12 moves from the long hole 5y on the lock side to the long hole 5x on the lock release side by the long hole 5b for locking of the stopper lever 5R. Therefore, the stopper lever 5R can swing and the stopper is released. Also, in the line cross section BB (b), the support member 1 and the stopper levers 5R and 5L are engaged with the unevenness 1a, 1a, 5a and 5a. The brake shoes 9 and 9 and the stop plates 3 and 3 are simultaneously pressed by the amount H of the bulge of the protrusions 5a and 5a, and the stop plates 3 and 3 are on the R side of the omnidirectional movable wheel 100. The state in which all the barrel-shaped rollers 101 on the L side are pressed against each other is shown.

FIG. 1 (a) 1 Support member FIG. 1 (a) 1a Support member unevenness FIG. 1 (a) 1b Stopper lever swinging slot FIG. 1 (a) 1c Rotating shaft hole FIG. 1 (a) 1d Locking slot FIG. (A) 1x lock pin release side long hole Fig. 1 (a) 1y lock pin lock side long hole Fig. 3 (a) 1n Stopper release position Fig. 4 (a) 1z Stopper position Fig. 4 (a) 1w Stopper release direction Fig. 1 (D) 2 Rotation axis Fig. 1 (b) 3 Stop plate Fig. 1 (b) 3a Bolt head fitting hole Fig. 1 (d) 4 Nut Fig. 1 (c) 5R Stopper lever Fig. 1 (c) 5L Stopper lever Fig. 1 (C) 5a Stopper lever unevenness Fig. 1 (c) 5b Lock side slot Fig. 1 (c) 5c Rotating shaft hole Fig. 1 (c) 5x Unlock side slot Fig. 1 (c) 5y Lock side slot Fig. 1 ( b) 6 Color Fig. 1 (c) 7 Stopper lever connecting rod Fig. 1 (c) 8 Handle Fig. 1 (b) 9 Brake shoe Fig. 1 (c) 10 pin Fig. 1 (c) 11 Retaining ring Fig. 1 (b) 12 Lock pin Fig. 1 (b) 13 Coil spring Fig. 1 (b) 14 Flat seat metal Fig. 1 (c) 15 Retaining ring Fig. 1 (b) 16 Retaining ring Fig. 2 50 Caster with stopper Fig. 5 100 Omnidirectional movable wheel Fig. 5 101 Barrel type roller Fig. 5 102 Retaining ring Fig. 5 103 Fixing bolt Fig. 5 104 Rotating shaft

The omnidirectional moving wheel 100 travels in the front-rear direction around two horizontal rotating shafts fixed to the support member 1, and three or more barrels alternately arranged on the R side and the L side. It is a caster capable of two rotational movements that proceed in the left-right direction around the rotary shaft 104 of the mold roller 101, and is provided with a stopper that stops the two rotary movements at the same time, and the support member 1 and the stopper levers 5R and 5L are Engage with each of the shaft holes 1c, 1c, 5c, 5c, and the unevenness 1a, 1a, 5a, 5a provided around them, and when the engagement is canceled by swinging the stopper levers 5R, 5L around the rotating shaft twice. Along the inner walls on both sides of the support member 1, the stopper levers 5R, 5L, convex 5a, 5a, and the height H of the bulge are horizontally stoppered around the rotation shaft twice on the L side and R side of the omnidirectional movable wheel 100. By moving the levers 5R and 5L, the brake shoes 9 and 9 and the stop plates 3 and 3 arranged next to each other are simultaneously pressed, and the stop plates 3 and 3 press and contact all the barrel-shaped rollers 101. This is solved by a caster with a stopper, which is characterized in that the omnidirectional movable wheel 100 is stopped.

Further, the stopper levers 5R and 5L of FIG. 1C are provided with long holes 5b and 5b for locking, and are shown together with the variable L-shaped long holes 1d and 1d for lever locking of the support member 1 of FIG. 1A. 1 (b) lock pins 12, 12, which are responsible for guiding the movement to the unlock positions 1x, 1x, 5x, 5x, and the lock positions 1y, 1y, 5y, 5y, and the retaining rings 16, 16. Is an E-ring that holds the lock pins 12 and 12 to the support member 1 and prevents rattling.

Claims (3)

The omnidirectional movable wheel (100) is alternately arranged in the rotation motion that advances in the front-rear direction around the horizontal rotation axis (2) fixed to the support member (1) and the circumference of the R side and the L side. It is a caster capable of two movements of rotational movement traveling in the left-right direction around the rotation axis (104) of three or more barrel-shaped rollers (101), and is provided with a stopper for simultaneously stopping the two rotation movements. The support member (1) and the stopper lever (5R, 5L) are engaged with each other by the unevenness (1a, 1a, 5a, 5a) provided around each shaft hole (1c, 1c, 5c, 5c), and the stopper is used. When the engagement of the lever (5R, 5L) is disengaged by swinging around the rotation shaft (2), the convex (5a, 5a) of the brake lever (5R, 5L) is transmitted along the inner walls on both sides of the support member (1). ), The brake lever (5R, 5L) moves horizontally around the rotation axis (2) to the L side and the R side of the omnidirectional movable wheel (100) at the height (H) of the bulge. The brake shoes (9, 9) and the stop plates (3, 3) arranged next to each other are pressed at the same time, and the stop plates (3, 3) press and contact all the barrel-shaped rollers (101). A caster with a stopper characterized by stopping the omnidirectional moving wheel (100). The stop plates (3, 3) are provided with blades extending radially around the rotation axis (2) for the number of one side of the barrel-shaped roller (101), and are shorter than the radius of the omnidirectional movable wheel (100). It has a pressure welding blade of a length, and a hole (103) that fits with the head of the fixing bolt (103) of the retaining metal fitting (102) for preventing the rotation shaft (104) from coming off between the pressure welding blade and the pressure welding blade. By having one or more blades provided with 3a), the stop plate (3, 3) and the omnidirectional movable wheel (100) are held at a fixed position around the rotation axis (2) and radially. The caster with a stopper according to claim 1, wherein the extended individual pressure welding blades are pressed against a fixed barrel-shaped roller (101) to stop the rotation traveling in the left-right direction. In the support member (1) and the stopper levers (5R, 5L), the omnidirectional movable wheel (100) is forced to release the stopper by an external force (1w) at the time of stopper under the engagement condition. A variable L-shaped slot (1d, 1d) for locking the support member (1) so that the position of the stopper lever (5R, 5L) does not return from the stopper position (1z) to the stopper release position (1n) even when rotated. ) With a stopper according to claim 1, further comprising a mechanism in which the lock pin (12, 12) is blocked by a portion horizontally elongated on the lock side elongated hole (1y, 1y) side. caster.

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