JP3089098U - Castor brake and rotation direction localization device - Google Patents

Abstract

(57) [Problem] To provide a caster brake and rotation direction locating device that is safe and does not protrude as a whole, and also has functions of brake and rotation direction localization. SOLUTION: A wheel base 1, two wheel bodies 2, a wheel shaft 3, a rotating shaft 4, a push button 5, a slide block 6, a sliding base 7, a fixing pin 74, and engagement. Block 7
5 and two elastic parts 76 and 77. The vertical slide block 6 is indirectly linked with the push button 5 installed at a predetermined position, and the horizontal movement of the engagement block 75 and the fixing pin 74 is linked in synchronization with the push button 5. Perform braking and rotation direction localization.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a caster brake and a rotation direction locating device. In particular, the caster indirectly interlocks the vertical slide block with the push button installed at the predetermined position, synchronizes the horizontal movement of the two engaging parts in synchronization, and brakes the wheel body and the vertical rotation shaft. The present invention relates to a caster brake and a rotation direction localization device that form a localization action.

[0002]

[Prior art]

 The present invention is an improvement of 09-754,056 filed on Jan. 5, 2001. We have again reworked mainly the less-ideal parts of the prior art. The design of the prior art mainly uses a single mating part to link two engaging parts moving in the lateral direction, and at the same time, forms a lock localization action on the wheel body and the vertical rotation axis, and And to prevent the fixed wheel base from rotating. In the actual structure, a horizontal horizontal installation tank is formed inside the flat bottom side of the wheel base, which presents a substantially semicircular shape, a concave tank is formed upward at one end of the installation tank, and a vertical axis on which the rotating shaft is in contact. Communicate with the hole. The vertical shaft hole corresponds to the upwardly facing concave tank of the installation tank and forms an open tank, whereby the rotating shaft corresponds to the open tank and forms an annular projection having a localized concave depression. At the opposite end of the installation tank, a fitting part is movably installed, and the movable connecting part of the fitting part is installed with a long and short block body facing the center of rotation. In addition, a sliding table that operates in the horizontal direction is installed in the installation tank, and the sliding table is pushed by the elastic component, and one end constantly pushes the movable connection part of the fitting component. The pushed lower end forms a cut angle, which is advantageous for the rotation of the movable connection part of the fitting part. The opposite end is pierced with a fixing pin and extends into the long hole of the wheel base, and the pin end extends outward to form a concave groove in the ring array on the inner ring surface of the wheel. In addition, this end of the sliding table is set to the engaging block of the concave tank. The engagement block is pushed by another elastic part, is positioned on the slide table, and enters the stereoscopic recess of the rotating shaft ring-shaped projection while the tank is open as the slide table is moved laterally.

[0003] Thus, when the mating part pushes and applies the double brake, its movable connection rotates and urges the slide platform for a long distance, so that the fixing pin is attached to the wheel body in the concave groove of the wheel inner ring surface. Apply the brake. In addition, the engagement block receives the pressing of the elastic component, and enters the stereotactic concave of the rotary shaft annular projection in accordance with the lateral movement of the slide table. As a result, the fixed base cannot be rotated.

[0004]

[Problems to be solved by the invention]

 However, the above-mentioned known configuration utilizes the direct rotation of the mating part, the movable connection of which propells the slide base over long distances and the associated engaging parts together implement the double braking effect. Therefore, it is necessary that the fitting part always protrudes unbalancely on the side of the wheel base to form a “horizontal projecting object”. Although this standard does not affect the brake orientation function, the fitting parts on the side of the wheel base are protruding, and the casters as a whole protrude and are not beautiful. In addition, the protruding form is dangerous because it easily hits the foot of the pedestrian. SUMMARY OF THE INVENTION An object of the present invention is to provide a brake and rotation direction locating device for a caster in which the entire caster does not protrude, and is safe and has both functions of brake and rotation direction localization.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the caster brake and rotation direction locating device described in the claims of the present invention are provided with a predetermined part without projecting a fitting part (referred to as a push button in the present invention) connected to the casters. It is installed at a position, and the horizontal movement of the two engaging parts is synchronously linked by the interlocking of the vertical sliding blocks between the mating parts, and the wheel body and the vertical rotating shaft form a brake localizing action.

[0006] Mainly, a vertical slide tank is formed corresponding to one side above a horizontal installation tank of a wheel stand installed on a slide base, and a vertical slide block is installed. The lower end of the vertical slide block and the slide platform are interconnected and form a slope that conflicts with each other. In addition, a recessed movable tank is formed on the upper side of one side of the vertical slide tank that communicates with each other, and a push button is installed in the movable tank corresponding to the circular movable part. The push button forms a wing body that can be pushed at the outer end of the circular movable part, and the circular movable part corresponds to the upper end of the vertical slide block and is pushed and positioned by an appropriate contact surface. As a result, the vertical slide block is pushed and moves downward, and uses the lower end slope of the vertical slide block to push the end slope of the slide platform. In this way, the slide table is moved laterally together with the engagement block installed on the upper part, and a localization action in the brake rotation direction is generated.

[0007]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the caster brake and rotation direction locating device according to one embodiment of the present invention includes a wheel base 1, two wheel bodies 2, a wheel axle 3, a rotating axle 4, a push button 5, , A slide block 6, a slide table 7, a fixing pin 74, an engagement block 75, and two elastic parts 76 and 77.

The wheel mount 1 has a horizontal installation tank 12 having a wheel axle hole 11 at the center of the inside of the tank inside the flat bottom side having a substantially semicircular shape, and both side walls of the installation tank 12 have wheel axle holes. The wheel shaft hole 13 into which the shaft ring 131 is to be fitted is installed corresponding to the wheel ring 11. One end of the horizontal installation tank 12 is provided with a concave tank 14 facing upward, and communicates with a vertical shaft hole 15 in which the rotating shaft 4 is in contact. The vertical shaft hole 15 corresponds to the position of the concave tank 15 facing upward in the installation tank 12, and an open tank 16 is formed. In addition, long tank holes 17 are formed on both sides of the end opposite to the vertical shaft hole 15. The installation tank 12 forms a separate sliding tank 18 above the other side of the vertical shaft hole 15 which does not communicate with each other, and a movable tank which is recessed in the upper part of one side of the wheel base 1 which communicates with the sliding tank 18. 19 is formed. A perforation 191 is provided on the tank wall of the movable tank 19, and a pin hole 110 is provided laterally on one lower edge of the installation tank 12 corresponding to the position of the movable tank 19. In this way, a later-described localization pin 54 is pierced.

The wheel body 2 has a groove 21 in the inner ring surface ring row and includes a shaft base 22 at the center. The wheel axle 3 penetrates the wheel axle hole base 11 of the wheel base 1 and has two wheels at both ends. Body 2 is firmly attached. The rotating shaft 4 is penetrated in the vertical shaft hole 15 of the wheel base 1, the shaft cover 41 is fitted in the middle of the shaft body, the shaft cover 151 is pierced correspondingly, and the bearing ring 152 is provided in the upper end. The vertical shaft hole 15 is pierced. In addition, the lower end of the rotating shaft 4 corresponds to the open tank 16, and the localization ring 8 is connected, and around the localization ring 8, a recess 81 is provided at an appropriate distance and at an equal angle. In addition, the rotary shaft 4 forms a stepped shaft having a polygonal ring surface 42 and a screw notch post 43 at the lower stage. As a result, the polygonal concave hole 82 and the perforation 83 are set in the localization ring 8, are fitted to each other, are screwed to the screw notch post 43 by the nut 44, and the localization ring 8 is tightened and screwed.

The push button 5 forms a circular movable portion 51 having a movable hole 511 at the center, is installed at the inner end of the movable tank 19 on one side upper part of the wheel mount 1, and is pierced by a pin post 52 into a hole 191 at the tank end. Enter, move and rotate. The circular movable portion 51 forms a fan-shaped cut surface recessed on the lower side, and is used as a thrust surface. In the thrust surface form, a projection 512 is formed at the center, and a slope 513 is provided at the side. In addition, the arc extends outward to the periphery according to the slope 513, and forms an arc-shaped concave surface 514 having a step edge 515 at the end. Further, a wing body 53 to be pressed is formed at the outer end of the circular movable portion 51.

The slide block 6 has a vertical direction and is installed in a sliding tank 18 of the wheel mount 1. The upper end of the slide block 6 is opposed to the protrusion 512 and the slope 513 of the circular movable portion 51 of the push button 5, and has a recess 61 and a shorter slope 62. A long slope 63 is formed at the lower end of the slide block 6.

The sliding slide 7 is installed in the installation tank 12 at the bottom of the wheel base 1, and a slide tank 71 is formed in the center thereof, corresponding to the wheel axle base 11 of the wheel base 1, and Pierce. Further, one end of the wheel base 1 is pushed by the elastic component 76 and constantly moves to the lower end of the slide block 6. One end of the wheel base 1 that constantly presses the slide block 6 exhibits a slope 72 in the form of a cut angle, and pushes the slope 63 at the lower end of the slide block 6. An insertion hole 73 is provided at the opposite end of the slide base 7, and a fixing pin 74 is pierced and connected in the lateral direction. As a result, the fixing pin 74 extends into the long tank hole 17 of the wheel mount 1, and the end of the fixing pin 74 extends. In addition, the positioning pin 54 is pierced by using the pin hole 110 on one side edge of the installation tank 12 on the bottom side of the wheel base 1, and the sliding base 7 is supported below the position where the slope 72 is provided.

The engagement block 75 is installed inside the end of the slide base 7 having the fixing pin 74, and is installed corresponding to the concave tank 14 of the wheel base 1. In addition, another elastic part 77 is installed in the sliding base 7 in the lateral direction, and the engaging block 75 is pierced. As a result, the engagement block 75 pushes and fixes the end of the sliding slide 7.

Next, as shown in FIG. 2, the caster composed of the above-mentioned components has an installation tank 12 inside the bottom of the wheel base 1 that operates in the lateral direction when the brake is not applied. Installed in The sliding slide 7 is pushed by the elastic component 76 and comes into contact with the slope 63 at the lower end of the slide block 6 by the slope 72 at the upper end corner on one side. The opposite end is provided with an engagement block 75 fixed by another elastic part 77. In addition, when the push button 5 is not pressed, the push button 5 is fitted in the concave depression 61 at the upper end of the slide block 6 at the center of the fan-shaped pushing surface which is depressed below the circular movable portion 51. And localize. On the other hand, the fixing pin 74 at one end of the slide base 7 is also disengaged from the concave groove 21 on the inner ring surface of the wheel body 2 to rotate the wheel body 2. In addition, the engagement block 75 is pushed by the elastic component 77 and assumes a localized state at the end of the sliding slide 7. The upper portion of the engagement block 75 is located outside the orientation ring 8 installed on the rotating shaft 4, whereby the wheel base 1 rotates relative to the rotating shaft 4.

Subsequently, as shown in FIG. 3, the wing body 53 is pushed by the push button 5 to rotate the circular movable portion 51, and the protrusion of the circular movable portion 51 which rotates when exerting the double brake constant rotation action. Numeral 512 departs from the concave depression 61 at the upper end of the slide block 6, and the slope 513 below the circular movable portion 51 is pushed along the slope 62 at the upper end of the slide block 6. Next, the upper end of the slide block 6 is pushed by the arcuate concave surface 514 that rotates and extends to the outer edge, and the slide block 6 is moved downward. The step edge 515 at the end of the arcuate concave surface 514 is aligned, stopped and positioned. At this time, the slide block 6 that has moved downward pushes the slope 72 at the upper end angle of the slide base 7 with the slope 63 at the lower end, and pushes and slides the slide base 7 to compress the elastic component 76. At the same time, the fixing pin 74 moves along the long tank hole 17 of the wheel base 1 and enters the concave groove 21 on the inner ring surface of the wheel body 2.

In this way, the wheel body 2 is engaged and localized, and a braking effect is produced. Further, the engagement block 75 is pushed by the elastic component 77, moves along the slide table 7, and fits into the recess 81 of the localization ring 8 installed at the lower end of the rotating shaft 4. Thus, the wheel base 1 is fixed, and the direction change is disabled. That is, it has both the function of braking and the function of localizing in the rotation direction.

[0017]

[Effect of the invention]

 As described above, the present invention combines the functions of braking and rotation direction localization.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a caster brake and a rotation direction locating device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a state in which the brake of the caster and the brake of the rotation direction localization device are not applied according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view illustrating a state in which the brake of the caster and the brake of the rotation direction localization device are applied according to the embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheel base 2 Wheel body 3 Wheel axle 4 Rotation axis 5 Push button 6 Slide block 7 Sliding slide 8 Localization ring 11 Wheel axle hole 12 Installation tank 14 Depression tank 15 Vertical shaft hole 16 Open tank 17 Long tank hole 19 Movable Vessel 21 Groove 51 Circular movable part 53 Wing body 63 Slope 71 Sliding tub 73 Insertion hole 74 Fixing pin 75 Engagement block 76, 77 Elastic component 81 Recess 191 Perforation

Claims (3)

[Utility model registration claims] 1. A wheel base, a wheel body, a wheel axle, a rotating shaft, a push button, a slide block, a slide base, a fixing pin, an engagement block, and an elastic part. A shaft hole is formed in the vertical shaft hole, and the wheel base forms a horizontal horizontal installation tank inside the flat side of the bottom side having a substantially semicircular shape, and a concave tank upward at one end of the installation tank. Is installed, communicates with the vertical shaft hole, the vertical shaft hole forms an open tank corresponding to the concave tank, forms a long tank on both sides of the end of the vertical shaft hole, at the opposite end A hole is opened, a wheel axle hole base is provided at the center of the installation tank outside the wheel mount, the rotary shaft is drilled, and the two wheel bodies are firmly attached to both ends of the rotary shaft, A concave groove is formed in the inner ring surface ring row of the wheel body, and the rotation shaft Installed,
A recess is provided around the orienting ring, the slide table is installed in the installation tank on the bottom side of the wheel table, and a slide tank is formed at the center thereof, and the wheel shaft hole of the wheel table is formed. Corresponding to a table, pierced by the wheel axle, one end of the wheel table is pushed by the elastic component, constantly moves to the lower end of the slide block, an insertion hole is installed at the opposite end, A fixing pin is pierced and connected to the long tank hole of the wheel base, and the slide block is installed inside an end of the slide base including the fixing pin, is installed corresponding to the concave tank, and is provided in another lateral direction. An elastic part is installed, the slide block is pushed, and the slide block is located at an end of the slide table. The installation tank of the wheel base on which the slide table is installed is opposite to the vertical shaft hole that does not communicate with each other. A vertical slide tank is formed at the top, and the A vertical slide block is installed in the id tank, and a lower end of the slide block is connected to an end of the slide table to form a slope that is fixed to each other, and the vertical slide block is formed. A movable tank is formed on the upper side of one side of the wheel base, and the push button is provided in the movable tank so as to be movable relative to the circular movable part, and the push button is provided outside the circular movable part. Forming a wing body that can be pushed at the end,
The circular movable portion forms a contact surface that can be positioned by contacting the upper end of the slide block in contact with the contact side of the upper end, whereby the slide block is pushed downward by the circular movable portion and moves downward, and the push button With the rotation of the circular movable part, the circular movable part rotates and pushes the slide block downward, and the lowered slide block pushes the slope at the end of the slide base by the slope at the lower end, and slides the slide base horizontally. Moving, the fixing pin enters the concave groove of the inner ring surface of the wheel body, the engaging block is pushed by the elastic part, moves along the slide table, and is installed together on the rotating shaft. A caster brake and rotation direction locating device, wherein the wheel body is braked at the same time as entering the recess of the ring, and the wheel base is fixed so that the direction change is impossible. 2. The circular movable part of the push button forms a sector-shaped cut surface recessed downward, and is used as a thrusting surface. The thrusting surface is formed with a projection at the center and formed on a side. Set up the slope,
An arc extends outward to the periphery in accordance with the slope, forms an arc-shaped concave surface with a step edge at the end, and the upper end of the slide block corresponds to the protrusion and the slope, forming a concave depression and a slope. The caster brake and rotation direction locating device according to claim 1, wherein: 3. The rotary shaft forms a stepped shaft body having a polygonal ring surface and a screw notch post at a lower stage, and a polygonal concave hole and a perforation are installed in the stereotactic ring, and are fitted to each other. 2. A screw is connected to the screw notch post by a nut, and the positioning ring is tightened and screwed.
The caster brake and rotational direction localization device as described.