JP2013144530A - Wheel structure body with control mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a practical wheel structure body with a control mechanism capable of performing positioning by controlling a brake through a brake device attached thereto from the outside while regulating a plurality of wheels at the same time.SOLUTION: A wheel structure body with a control mechanism includes a control means 1, a braking means 2 and a wheel 3. The control means 1 has a fixed block 11, a displacement groove 13, wall holes 14, a control block 15, a pivotally-attaching end 16, an upper slope 17, positioning holes 18, and positioning shafts 19. The fixed block 11 has a displacement groove 13 formed therein so as to be recessed. Two sidewalls of the displacement groove 13 have at least two wall holes 14 therein. A control block 15 is accommodated in the displacement groove 13. At the side of the control block 15, a pivotally-attaching end 16 is provided. A brake device attached to the outside thereof drives the control block 15 via the pivotally-attaching end 16. An upper slope 17 is installed at the bottom of the control block 15. At least two positioning holes 18 are formed at the two sidewalls of the control block 15.

Description

  The present invention relates to a wheel structure with a control mechanism, and more particularly to a wheel structure with a control mechanism that can be coupled to the bottom of a baby chair, a hospital bed, a medical facility such as a wheelchair, a rack, or a cabinet. Is.

  Conventional wheel structures such as casters, when using a plurality of wheels, had to be controlled such as stepping on each wheel with their feet. Therefore, for example, in the case where four wheels are provided in the pusher, it is necessary to position the pusher by stepping on a brake for each wheel and fixing the pusher, which takes a lot of time and is inefficient.

  Under such circumstances, there have been many proposals and implementations for casters having a control mechanism. For example, Japanese Patent Laid-Open No. 2011-6045 (hereinafter referred to as “Patent Document 1”) discloses a wheel mounting in which a wheel is mounted as a caster having a brake mechanism that can obtain a control force according to a pulling force of a brake lever. In order to press the outer peripheral portion of the wheel, the pin supported by the wheel mounting member, the inner peripheral surface rear end portion that presses against the outer peripheral portion of the wheel and brakes the wheel, and the inner peripheral surface rear end portion A wire fixing portion to which the force of the inner surface is applied, a rear end portion of the inner peripheral surface, a pin, and a wire fixing portion are provided with braking members arranged in this order along the rotation direction of the wheel, and the wheel mounting member A structure is described in which the long hole that supports the pin is formed so that the pin can move in the direction away from the wheel axle inside the long hole when the rear end of the inner peripheral surface comes into contact with the outer peripheral part of the wheel. ing. However, since such a structure is still complicated, there is room for improvement in order to stop the wheel quickly and reliably, and a configuration capable of simultaneously braking a plurality of wheels is not disclosed.

Japanese Patent Application Laid-Open No. 9-272302 (hereinafter referred to as “Patent Document 2”) describes a control mechanism that simultaneously locks the turning and rotation of a two-wheel caster having a pair of wheels.
However, the structure of the caster described in Patent Document 2 is as complex as described above, and there is no disclosure about a structure in which a plurality of wheels are controlled by a single braking mechanism.

Accordingly, there has been a demand for the development of a wheel structure with a braking mechanism that can stop the wheel reliably with a simple operation, with a simple configuration for braking the wheel attached to the bottom surface of the transfer moving body.
JP 2011-6045 A JP-A-9-272302

  Therefore, an object of the present invention is to provide a wheel structure with a practical control mechanism that can control and position a plurality of wheels at the same time while controlling a brake by an external braking device. .

  Therefore, as a result of intensive studies to solve the problems of the present invention, the present inventors have paid attention to the fact that the problems can be solved by combining with a specific braking mechanism and wheels, as will be described later. Based on this knowledge, the inventors have arrived at the present invention.

  In the present specification, the “wheel structure” refers to a configuration including a control unit, a brake unit, and a wheel.

Thus, in order to solve the above problems, according to the present invention, there is provided a wheel structure with a control mechanism including a control means, a brake means, and a wheel,
The control means has a fixed block, a displacement groove, a wall hole, a control block, a pivot end, an upper slope, a positioning hole and a positioning shaft, and the displacement groove is recessed in the fixing block, and the displacement groove The at least two wall holes are provided on the two side walls, the control block is accommodated in the displacement groove, the pivoting end is provided on the side of the control block, and The brake device pivotally attached to the drive unit drives the control block through the pivot end, and is provided with an upper slope at the bottom of the control block, and the positioning hole is provided on at least two side walls of the control block. The positioning hole and the wall hole communicate with each other, and at least two positioning shafts are inserted into the positioning hole and the wall hole at the same time. A distal end is brought into contact,
The brake means includes a housing, a top cover, a pivot, a brake block, and a brake surface. The top cover is covered on the housing, and a tip is provided on the top of the pivot. The shaft is inserted into the elastic member, the pivot is inserted into the housing through the fixed block of the control means and screwed into the brake block, and the pivot is pushed by the elastic member and The tip is brought into contact with the upper slope of the control means, the brake block is disposed in the housing, and the brake surface is provided on the bottom surface of the brake block. Contacting the brake surface;
The wheel is coupled within the housing of the brake means, and the braking device pivotally attached to the pivot end of the control means causes the brake surface to abut against the wheel when the brake is applied. A wheel structure with a control mechanism characterized by fixing a wheel is provided.

  The wheel structure is preferably a single-wheel type or a two-wheel type.

  In the case of the two-wheel type, a cam is provided on the brake surface of the brake block of the brake means, the two wheels are provided, and a brake engagement member is provided on a surface corresponding to each other provided on the inner side of the two wheels. It is preferable that a mating groove is provided, and the cam on the brake surface is engaged with the brake engaging groove of the two wheels to apply a brake.

  At least two side portions of the fixed block of the control means are each provided with a protruding piece portion, and the protruding piece portion has a plurality of engagements used for screwing the fixed block on the bottom of the article. Preferably, holes are provided.

  It is preferable that an arcuate tip is provided at the top of the pivot of the brake means.

  The control means includes the pivot shaft and the brake block, the pivot shaft extends through the positioning block, the positioning block is mounted on the brake block, and a plurality of lower teeth are provided on the positioning block. A concave hole is provided on the brake block, and a plurality of upper teeth protruding downward are provided at an upper end of the concave hole, and when the brake block is driven downward by the pivot, the upper teeth And the lower teeth are preferably meshed and positioned.

  The present invention consists of a combination of the control means and the brake means as described above, and is capable of quickly and surely stopping a wheel by a simple operation while having a simple structure, and in particular, controls a plurality of wheels simultaneously. It has a remarkable effect that it can be.

It is a disassembled perspective view which shows the wheel structure with a single-wheel-type control mechanism by one Embodiment of this invention. It is an enlarged view which shows the brake block of the wheel structure with a control mechanism by one Embodiment of this invention. 1 is a perspective view showing a wheel structure with a control mechanism of a single wheel type according to an embodiment of the present invention. It is sectional drawing which shows the wheel structure with a control mechanism before the operation | movement of the single-wheel format by one Embodiment of this invention. It is sectional drawing which shows the wheel structure with a control mechanism after the operation | movement of the single-wheel format by one Embodiment of this invention. It is a perspective view which shows the wheel structure with a two-wheels type control mechanism by one Embodiment of this invention. It is sectional drawing which shows the wheel structure with a control mechanism before the operation | movement of the two-wheel format by one Embodiment of this invention. It is sectional drawing which shows the wheel structure with a control mechanism after the operation | movement of the two-wheel format by one Embodiment of this invention. It is a perspective view which shows a state when operating the some wheel structure by one Embodiment of this invention simultaneously.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited thereby.

  Please refer to FIG. As shown in FIG. 1, a wheel structure with a control mechanism according to an embodiment of the present invention includes at least a control means 1, a brake means 2, and wheels 3.

  The control means 1 is a device that brakes the brake means 2 by a braking device, and includes a fixed block 11, a projecting piece 12, a displacement groove 13, a wall hole 14, a control block 15, a pivot end 16, an upper slope 17, and positioning. A hole 18 and a positioning shaft 19 are included. On at least two side portions of the fixed block 11, projecting piece portions 12 are respectively extended. The projecting piece 12 is provided with a plurality of engagement holes 121 used for screwing the fixed block 11 to the bottom of the transfer moving body. A displacement groove 13 is recessed in the fixed block 11. At least two wall holes 14 are provided on the two side walls of the displacement groove 13. A control block 15 is accommodated in the displacement groove 13. A pivot end 16 is provided on the side of the control block 15. The pivot end 16 drives the control block 15 by a braking device pivoted to the outside, and an upper slope 17 is provided at the bottom of the control block 15. By forming the upper slope 17 on a surface inclined at a predetermined angle on the control block 15, the thickness of one end of the control block 15 becomes thinner than the thickness of the other end, and on the two side walls of the control block 15. At least two positioning holes 18 are provided. By positioning the positioning hole 18 and the wall hole 14 in communication and simultaneously inserting at least two positioning shafts 19 into the positioning hole 18 and the wall hole 14, the upper slope 17 and the tip 231 on the pivot 23 of the brake means 2 Abut.

  The brake means 2 is a device for braking the wheel 3 by the control means 1, and includes a housing 21, a top cover 22, a pivot 23, a brake block 24, a brake surface 25, a concave hole 26, an upper tooth 27, a positioning block 28, and a lower Tooth 29 is included. A top cover 22 is covered on the housing 21. An arcuate tip 231 is provided at the top of the pivot 23, and the shaft body of the pivot 23 is inserted into the elastic member 232. The pivot 23 is inserted into the fixed block 11 of the control means 1, inserted into the fixed block 11 from the positioning block 28 and screwed into the brake block 24, and the pivot 23 is pushed by the elastic member 232, The tip 231 is brought into contact with the inclined surface 17, and the above-described brake block 24 and positioning block 28 are arranged in the housing 21. A brake surface 25 is provided on the bottom surface of the brake block 24, and the brake surface 25 is brought into contact with the wheel 3 when the brake is applied. A concave hole 26 is provided in the brake block 24. A plurality of upper teeth 27 protrude downward from the upper end in the recessed hole 26, and a positioning block 28 is attached onto the brake block 24. A plurality of lower teeth 29 are provided on the positioning block 28. When the brake block 24 is driven downward by the pivot 23, the upper teeth 27 and the lower teeth 29 are meshed and positioned.

  Please refer to FIG. As shown in FIG. 3, the wheel 3 is coupled within the housing 21 of the brake means 2, and the wheel structure with a control mechanism of the present embodiment includes at least the control means 1, the brake means 2, and the wheels 3.

  Please refer to FIG. 3 and FIG. As shown in FIGS. 3 and 4, the wheel structure with a control mechanism according to one embodiment of the present invention is pivotally attached to the braking device 4 via the pivotal end 16 of the control means 1. In the present embodiment, when actually used, the control block 15 of the control means 1 is pulled in a predetermined direction by the braking device 4, and the pivot 23 of the brake means 2 has a tip 231 provided at the upper end of the upper slope 17. If the elastic member 232 is compressed and displaced downward by the pivot 23, the brake block 24 screwed to the lower end of the pivot 23 drives the brake surface 25. Then, the brake surface 25 is brought into contact with the wheel 3 to apply the brake. When the pivot 23 is pressed and displaced downward, the upper teeth 27 are moved by the brake block 24 screwed to the lower end of the pivot 23. As a result, the upper teeth 27 move downward and mesh with the lower teeth 29 on the positioning block 28 for positioning.

  The wheel 3 of the wheel structure with a control mechanism according to the embodiment of the present invention may be a single wheel type (see FIG. 1) or a two wheel type (see FIG. 6). As shown in FIG. 6, the cam 251 is provided in the brake surface 25 of the brake block 24 of the brake means 2 of this embodiment. Two wheels 3 are provided. Brake engagement grooves 31 are provided on the surfaces corresponding to each other provided inside the two wheels 3. The cam 251 of the brake surface 25 is engaged with the brake engagement groove 31 on the two wheels 3 when the brake is applied.

  Please refer to FIG. 6 and FIG. As shown in FIGS. 6 and 7, the wheel structure with a control mechanism of the present embodiment is a two-wheel type, and the brake device 4 is connected via the pivot end 16 of the control means 1 as in the above-described embodiment. When the control block 15 of the control means 1 is pulled in a predetermined direction by the braking device 4 during actual use, the pivot 23 of the brake means 2 is moved to the upper slope 17 by the tip 231 provided at the upper end. Accordingly, the control block 15 moves to a place where the thickness of the control block 15 is large, whereby the pivot 23 is displaced downward by compressing the elastic member 232. Therefore, the brake block 24 screwed to the lower end of the pivot 23 displaces the brake surface 25 downward, and the cams 251 of the brake surface 25 mesh with the brake engagement grooves 31 provided on both side surfaces of the two wheels 3. And apply the brakes. When the pivot 23 is pressed and displaced downward, the brake block 24 screwed to the lower end of the pivot 23 displaces the upper teeth 27 downward, and the upper teeth 27 mesh with the lower teeth 29 on the positioning block 28. Position.

  Please refer to FIG. As shown in FIG. 8, the wheel structure with a control mechanism of the present embodiment can be controlled by the externally attached braking device 4 and can also be operated by simultaneously controlling a plurality of wheel structures. Use efficiency is high and practical.

  Although the preferred embodiments of the present invention have been disclosed as described above, these do not limit the present invention in any way. Various changes and modifications can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the claims of the present invention should be construed broadly including such changes and modifications.

DESCRIPTION OF SYMBOLS 1 Control means 2 Brake means 3 Wheel 4 Braking device 11 Fixed block 12 Projection piece part 13 Displacement groove 14 Wall hole 15 Control block 16 Pivoting end 17 Upper slope 18 Positioning hole 19 Positioning shaft 21 Housing 22 Top cover 23 Axis 24 Brake block 25 Brake surface 26 Concave hole 27 Upper tooth 28 Positioning block 29 Lower tooth 31 Brake engagement groove 121 Engagement hole 231 Tip 232 Elastic member 251 Cam

Claims (6)

A wheel structure with a control mechanism comprising a control means, a brake means and wheels,
The control means has a fixed block, a displacement groove, a wall hole, a control block, a pivot end, an upper slope, a positioning hole and a positioning shaft, and the displacement groove is recessed in the fixing block, and the displacement groove The at least two wall holes are provided on the two side walls, the control block is accommodated in the displacement groove, the pivoting end is provided on the side of the control block, and The brake device pivotally attached to the drive unit drives the control block through the pivot end, and is provided with an upper slope at the bottom of the control block, and the positioning hole is provided on at least two side walls of the control block. The positioning hole and the wall hole communicate with each other, and at least two positioning shafts are inserted into the positioning hole and the wall hole at the same time. A distal end is brought into contact,
The brake means includes a housing, a top cover, a pivot, a brake block, and a brake surface. The top cover is covered on the housing, and a tip is provided on the top of the pivot. The shaft is inserted into the elastic member, the pivot is inserted into the housing through the fixed block of the control means and screwed into the brake block, and the pivot is pushed by the elastic member and The tip is brought into contact with the upper slope of the control means, the brake block is disposed in the housing, and the brake surface is provided on the bottom surface of the brake block. Contacting the brake surface;
The wheels are coupled within the housing of the brake means;
A wheel structure with a control mechanism, wherein the braking device pivotally attached to the pivoting end of the control means fixes the wheel by bringing the brake surface into contact with the wheel when the brake is applied. .   The wheel structure with a control mechanism according to claim 1, wherein the wheel structure is a single-wheel type or a two-wheel type.   In the case of the two-wheel type, a cam is provided on the brake surface of the brake block of the brake means, the two wheels are provided, and a brake engagement member is provided on a surface corresponding to each other provided on the inner side of the two wheels. The wheel structure with a control mechanism according to claim 2, wherein a mating groove is provided, and the cam on the brake surface is engaged with the brake engaging groove of the two wheels to apply a brake. On at least two sides of the fixed block of the control means, projecting pieces are respectively extended.
2. The wheel structure with a control mechanism according to claim 1, wherein the projecting piece is provided with a plurality of engagement holes used for screwing the fixed block at the bottom of the transfer moving body.   The wheel structure with a control mechanism according to claim 1, wherein an arcuate tip portion is provided at a top portion of the pivot of the brake means. The control means includes the pivot and the brake block,
Penetrating the pivot in the positioning block;
The positioning block is mounted on the brake block, a plurality of lower teeth are provided on the positioning block, a concave hole is provided on the brake block, and an upper end of the concave hole protrudes downward. The wheel structure with a control mechanism according to claim 1, wherein a plurality of upper teeth are provided, and when the brake block is driven downward by the pivot, the upper teeth and the lower teeth are meshed and positioned. body.