JPH06106907A - Ball caster with brake - Google Patents

Abstract

PURPOSE:To stop moving a carriage, furniture, etc., using a ball caster by mounting its retaining part slidably relating to a foundation part, stopping rotation of the ball by pressing the retaining part to the ball, and stopping moving the ball caster. CONSTITUTION:A retaining part 5 of a ball caster is slidably mounted relating to a foundation part 1 and pressed to a ball 4 through a band-shaped object 10, to serve as a brake by stopping rotation of the ball 4. Accordingly, moving a carriage and a furniture using the ball caster can be stopped.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a foot ball with a brake. The foot ball is used, for example, in place of the casters used in the four corners of the dolly and the four corners of furniture or the like.

[0002]

2. Description of the Related Art Since the football is not generally known,
I didn't have a foot with a brake yet.

[0003]

[Problems to be Solved by the Invention] To firmly stop the movement of the foot. If it is possible to stop the movement of the foot ball, for example, it is possible to stop the movement of a dolly that uses the foot ball in the four corners, or furniture that uses the foot ball in the four corners.

[0004]

[Means for Solving the Problems] In order to solve the above-mentioned problems, a foot pressing portion (5) is attached to a base portion (1),
The foot was braked by mounting it so that it could slide and move, pressing the holding part (5) against the ball (4) and stopping the rotation of the ball (4). Furthermore, when the pressing portion (5) is pressed against the sphere (4) on all or part of the surface of the pressing portion (5) with respect to the sphere (4), the sphere (4)
It is more preferable to stretch the strip-shaped object (10) so that the can firmly stop.

[0005]

Embodiments of the present invention will be described with reference to the drawings. Regarding the foot ball, please refer to “foot ball” (patent application date: October 5, 1991, reference number P0003-0012), which is the same as that of the present invention by the applicant of the present invention.

FIG. 1 is a perspective view of an embodiment of the foot ball portion in a state in which the pressing portion (5) is pressed against the ball (4) through the belt-shaped object (10) by pulling the pressing portion (5). FIG. 3 is a sectional view of FIG. 2. Of course, a strip-shaped object (1
0) may be omitted. same as below. The sphere (4) does not rotate because it is pressed against the band-shaped object (10) stretched over the foot pressing part (5). Therefore, the foot does not move. Further, the strip-shaped object (10) may be stretched over the entire surface of the pressing portion (5) with respect to the sphere (4) or may be stretched over only a part thereof. (2) is a ball receiver. Regarding the ball ball receiver, the present invention and the patent applicant are the same "ball ball receiver which is not a ball bearing" (patent application date September 9, 1991, reference number P0003-001).
Please refer to 0). (11A) is a stop plate for stopping the excessive return of the holding portion (5) fixed to the base portion (1).

FIG. 3 shows one embodiment of the foot ball portion when the pressing portion (5) is stopped from being pulled and the pressing of the pressing portion (5) against the ball (4) is stopped. FIG. 4 is a cross-sectional view of an example, the sphere (4) can rotate freely, ie the foot ball can move.

FIG. 4 is a sectional view of an embodiment of the foot ball portion in a state where the pressing portion (5) is pressed against the sphere (4) through the strip-shaped object (10) by pressing the pressing portion (5). . The stop plate (11B) is fixed to the holding portion (5).

To press the pressing portion (5) against the sphere (4), for example, the following may be performed.

Among the embodiments in which the foot balls are used at the four corners of the dolly, furniture, etc., when attaching the hook to the presser foot portion (5), for example, the foot ball on the front right side is pressed after the foot ball comes to rest. The hook of the part and the hook of the foot pressing part on the rear right side may be connected with rubber or a tension spring. Or, fix one end of rubber or tension spring to a dolly or furniture,
The other end should be fastened to the hook of the holding part. In this way, the pressing portion may be pressed against the sphere (4) via the strip-shaped object (10) by pulling the pressing portion.

As shown in FIG. 5, one embodiment of the present invention is a front view, in which one end is fixed to the base portion (1) and the other end is a female screw or a nut is attached. ) Fit the male screw (13) into the female screw, rotate the male screw (13), and press the holding portion (5) with the tip of the male screw (13) to attach the holding portion (5) to a strip-shaped object. It may be pressed against the sphere (4) via (10). In this case, insert a spring washer (14), or presser part (5)
And the female screw portion (12) are connected by one or a plurality of tension springs (16), or the male screw (13) can be rotated by the force of a human hand or foot. 1
Attach the lever (17) to the head of 3), or the male screw (13).
It is advisable to decide the pitch of the screw so that the required stroke can be obtained by rotating half a turn.

Further, an embodiment in which foot balls are used at the four corners of the carriage will be described. A ratchet may be attached to the brake of the bicycle or the like. That is, a wire rope fixed to the pressing portion (5) and the other end to the brake lever (15A) and a compression spring are used to operate the brake lever (15A) to apply a force against the compression spring to the wire. In addition to the other end of the rope, the wire rope, that is, the holding portion (5) may be pulled to press the holding portion (5) to the sphere (4) via the strip-shaped object (10).

At this time, as shown in FIG. 6 with a front view, a ratchet is used in an embodiment of the brake lever portion (15) according to the present invention, which corresponds to the brake lever portion of a bicycle or the like. , It is possible to pull the pressing part (5) at any time, but to return it, the pressing claw (15B)
Make sure that is only possible when the is removed from the tooth. Also, the ratchet teeth may be attached all around,
It may be attached only to a part.

When a ratchet is used, in order to prevent danger, for example, the pressing claw (15B) and the shaft (15) of the pressing claw are used.
C) is fixed, both ends or one end of the shaft (15C) of the presser pawl is extended until it is exposed to the outside of the brake lever portion (15), and the knob or lever is fixed to the extended portion, and the knob Alternatively, by operating a lever or the like, a pressing claw (15
B) should be removed from the teeth.

Further, the brake lever portion (15) according to one embodiment of the present invention may be attached to the left and right portions of the portion pushed by the hand of the truck, such as the brake lever portion of a bicycle. In this case, out of the four foot balls, the left and right pressing portions are pulled in total of two. It is not always necessary to pull all four holding parts.

As shown in FIG. 7 with a front view, one embodiment of the present invention is to use a lever (18) to push the pressing portion (5) to push the pressing portion (5) through a strip-shaped object (10). It may be pressed against the ball (4). explain in detail. The lever (18) is supported by a lever support (19) fixed to the base portion (1). Although not shown in the figure, a relatively weak spring is attached so that the lever (18) rotates counterclockwise in FIG. 7, and one end (18A) of the lever (18) is relatively It is tied to the retainer (5) with a strong spring or string or rope. The other end of the lever (18B)
Is, for example, a stepped portion with a foot.

A ratchet may be used for this brake as shown in FIG. With the ratchet, the pressing part (5) can be pushed at any time but can only be returned when the pressing pawl is removed from the tooth. The ratchet teeth may be provided on the entire circumference, but may be provided on only a part of the ratchet teeth. Then, as described above, in order to prevent danger, for example, the pressing claw and the shaft of the pressing claw are fixed, and both ends or one end of the shaft of the pressing claw is extended until it is exposed to the outside of the lever (19). The knob, the lever, or the like may be fixed to the extended portion, and by operating the knob, the lever, or the like, the pressing claw that is always pressed against the tooth with a small force may be removed from the tooth. In this case, it is better to use the lever rather than the knob so that you can operate it with your foot.

An embodiment for allowing the foot pressing portion (5) to slide and move with respect to the base portion (1) will be described with reference to FIGS. 8 and 9.

In FIG. 8, four stepped elongated holes (20) are formed in the holding portion (5), and movably fitted rings (16) are placed in the respective smaller holes, and the rings (16 ) With the male screw B (17) passing through the hole
It is a top view which shows one Example of the foot ball part when the presser part (5) is attached so that it can slide and move with respect to the base part (1). Here, the number of stepped elongated holes is four, but the number of stepped elongated holes is not limited to four. In addition, I think it will be easier to understand by referring to Figure 9 below.

FIG. 9 shows the above-mentioned 4 opened in the holding portion (5).
It is sectional drawing of one Example which showed one of the stepped slotted holes etc. (5) is a holding portion in which a stepped slot (20) is formed. Reference numeral (1) is a base portion in which a female screw is erected at an appropriate position corresponding to the stepped elongated hole (20) of the holding portion (5). (16) is a ring movably fitted in the smaller hole of the stepped elongated hole (20). (17) goes through the hole in the ring (16),
The male screw B is attached so that the holding portion (5) can slide and move with respect to the base portion (1). Although not shown, a washer may be inserted between the head of the male screw B (17) and the ring (16).

The materials for the parts of the foot ball with a brake described above may be widely selected from leather, felt, rubber, synthetic resin, textiles, metal, asbestos and composite materials.

[0022]

As described above, by using the foot ball with a brake of the present invention, the foot ball can be prevented from moving. Therefore, it is possible to stop the movement of the dolly or furniture by using a foot ball instead of the caster used for the dolly or furniture.

[Brief description of drawings]

FIG. 1 is a pressing part (5) or a strip-shaped object (1
It is sectional drawing which shows one Example of a foot ball part at the time of pressing the ball (4) through 0).

FIG. 2 is a drawing of a strip-shaped object (1
It is a perspective view which shows one Example of a foot ball part at the time of pressing the ball (4) through (0). The sectional view of this figure is FIG.

FIG. 3 is a cross-sectional view showing an embodiment of the foot ball portion when the pulling of the pressing portion (5) is stopped.

FIG. 4 is a band-shaped object (10) in which the pressing portion (5) is pressed.
It is sectional drawing which shows one Example of a foot ball part at the time of pressing the ball (4) through.

FIG. 5 is a front view showing an embodiment of the foot ball with a brake when the holding portion (5) is pushed by the male screw (13).

FIG. 6 is a front view showing an embodiment of a brake lever portion (15).

FIG. 7 is a front view showing an embodiment of the foot ball with a brake when the pressing portion (5) is pressed by the lever (18).

FIG. 8 is a plan view showing an embodiment of the foot ball portion when the pressing portion (5) is attached to the base portion (1) so as to be able to slide.

FIG. 9 is a cross-sectional view of one embodiment showing one of four elongated holes with steps and the like.

[Explanation of symbols]

 1 Basic part 2 Ball ball receiver 4 Ball 5 Presser part 10 Belt-shaped object 11A, 11B Stop plate 12 Female screw part 13 Male screw 14 Spring washer 15 Brake lever part 15A of the present invention 15A Brake lever 15B Presser claw 15C Presser claw shaft 16 ring 17 male screw B 18 lever 18A lever end 18B lever other end 19 lever support 20 stepped slot

Claims (6)

[Claims] 1. A "football" in which the present invention and the patent applicant are the same
(Patent filing date October 5, 1991, reference number P000
3-0012) In the foot ball described in 3), the foot pressing part (5) is attached to the base part (1) so as to be slidable, and the pressing part (5) is pressed against the ball (4). By which the rotation of the ball (4) is stopped and the foot ball is immovable, the moving ball is made stationary, or the stationary ball is kept stationary so that it does not move. With foot ball. 2. The foot pressing portion (5) is a base portion (1).
On the other hand, in the foot ball mounted so that it can slide and move, a hook is attached to the pressing portion (5), and the hook is pulled by using a rubber or a tension spring to The foot ball with brake according to claim 1, characterized in that is pressed against the ball (4). 3. The foot pressing portion (5) is a base portion (1).
On the other hand, in the above-mentioned foot ball mounted so as to be slidable and movable, one end is fixed to the base portion (1) and the other end is a female screw or a nut is attached to the female screw portion ( Fit the male thread (13) to the female thread of 12), rotate the male thread (13),
The foot ball with a brake according to claim 1, wherein the pressing part (5) is pressed against the ball (4) by pressing the pressing part (5) with the tip of the. 4. The foot pressing portion (5) is a base portion (1).
On the other hand, in the above-mentioned foot ball attached so that it can slide and move, like a brake of a bicycle,
One end is used for the pressing part (5) and the other end is used for the brake lever (15).
Using a wire rope fixed to A) and a compression spring,
By operating the brake lever (15A), a force resisting the compression spring is applied to the other end of the wire rope to pull the wire rope, that is, the holding portion (5), so that the holding portion (5) becomes a ball (4). The foot ball with a brake according to claim 1, which is pressed. It is also possible to use a ratchet to pull it at any time, but to return it only when the presser pawl is removed. 5. The foot pressing portion (5) is a base portion (1).
On the other hand, in the above-mentioned foot ball mounted so as to be slidable and movable, one end (18A) of the lever (18) supported by the lever support (19) fixed to the base portion (1). ) A force is applied to the other end (18B) of the lever so as to push the holding plate (5). The foot ball with a brake according to claim 1, wherein the pressing portion (5) is pressed against the ball (4) by pushing the pressing portion (5) with a lever. It is also possible to use a ratchet to push the ratchet at any time, but to return the ratchet only when the presser pawl is removed. 6. The brake according to claim 1, wherein a strip-shaped object (10) is stretched over all or part of the surface of the pressing portion (5) with respect to the sphere (4). With foot ball.