JP2019116211A - Guard tool for caster - Google Patents

Abstract

To provide a guard tool for a caster usable for a caster different in a size.SOLUTION: A guard tool comprises a guard tool body 10 made of a flexible material and forming a rectangular plate shape for enclosing a caster, a bending groove 20 provided in the guard tool body 10 so as to be juxtaposed with the other short side between one short side and the other short side of the guard tool body 10 and a lock structure 30 for detachably fitting and fixing one short side of the guard tool body 10 to the other short side when forming an opening 10a for enclosing the caster by bending the guard tool body 10. The lock structure 30 is formed of a lock part 31 provided on one short side of the guard tool body 10 and a lock object part 32 provided by juxtaposing in a plurality at an interval on the other short side of the guard tool body 10 and fitted to the lock part, and the lock part 31 forms an opening 10a by fitting to the lock object part 32 arranged on the outermost side.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a guard device for a caster, which is used for a caster mounted on the bottom of various devices to make the device movable.

  For example, an anesthetic machine is one of various devices with a caster. Various cables are often placed on the floor where the anesthesia machine is placed. If the anesthesia machine is moved to another location in such a state, the caster of the anesthesia machine may pinch or step on a cable or the like, and the anesthesia machine may not move smoothly. In order to prevent such a situation, there is a cover for castors (see, for example, Patent Document 1).

  The caster cover, as shown in FIG. 12, is composed of a cylindrical cover main body 111 and a fluoroplastic tape 112 for improving the slippage with the floor surface. The cover body 111 of the caster cover is mounted so that the caster 120 moves on the floor and is mounted so as to surround the caster 120 on the floor. Then, when the caster 120 moves on the floor surface, the cover main body 111 follows the caster. As a result, the cover for the caster prevents foreign matter such as a cable from entering the traveling track of the caster 120.

Unexamined-Japanese-Patent No. 2000-71708

  The conventional caster cover described above has the following problems. That is, in the cover for a conventional caster, the cover main body 111 is made in advance according to the size of the caster 120. However, there are various sizes of the caster 120. For this reason, when the cover for the large caster 120 is used for the small caster 120, the cover does not smoothly follow the movement of the caster 120. Therefore, it is necessary to prepare in advance covers for a plurality of casters of different sizes.

  An object of the present invention is to provide a guard device for a caster which solves the above-mentioned problems and which can be used on casters of different sizes.

  In order to solve the above-mentioned problems, the invention according to claim 1 is a guard device for a caster mounted on a caster, which is made of a flexible material and has a rectangular plate shape for enclosing the caster. A guarding tool main body, and a bending groove provided in the guarding tool main body between the one short side and the other short side of the guarding tool main body and in line with the other short side; A lock structure in which one short side of the guard body is detachably fitted and fixed to the other short side when the guard body is bent to form an opening surrounding the caster; A plurality of the lock structures are provided side by side with a lock portion provided on one short side of the guard tool main body and a space on the other short side of the guard tool main body; And the lock portion fitted with the Engaged with locked portions that are most disposed outside to form said opening, it is caster guard device according to claim.

  In the first aspect of the invention, the guard body is bent to form an opening in order to surround the caster. Both ends of the guard tool body are fixed by the lock structure provided on the guard tool body. In this case, when the guard tool body is larger than the caster, the locked portions are separated. Thereby, the length of the guard tool main body can be adjusted to reduce the opening, and the guard tool main body can be adapted to the caster.

  According to a second aspect of the present invention, in the guard tool for casters according to the first aspect, the lock portion is a lock portion side fitted with a convex portion on the main body side formed by providing a groove in the guard main body. And a lock groove provided on a side wall of the recess, wherein the locked portion is provided on a side wall of the protrusion on the main body side, and is provided so as to protrude from the bending groove, and the lock And a projection fitted with the groove.

  According to a third aspect of the present invention, in the guard device for casters according to the first or second aspect, the groove for bending is a lock portion provided on one short side of the guard main body and the other short side. The guard device main body forms an annular opening with each bending groove when one short side is fixed to the other short side by the locking structure. To be characterized.

  According to the invention of claim 1, when the guard tool main body is attached to the caster, when the opening formed by the guard tool main body is larger than the caster, the locked portion is spaced apart from the guard tool main body. Because a plurality of are provided side by side, the locked portions are separated. Thereby, the length of the guard tool main body is adjusted, the opening formed by the guard tool main body is reduced, and the guard tool main body can be adapted to the caster. Further, since the guard tool main body is provided with a bending groove, the guard tool main body can be easily bent at the groove portion in accordance with the caster.

  According to the invention of claim 2, since the projection of the locked portion is provided so as to protrude from the bending groove, the opening formed in the guard tool main body is separated by separating the portion of the bending groove. The size can be adapted to the caster.

  According to the invention of claim 3, since the guard tool body forms an annular opening by the plurality of bending grooves, when the portion of the bending groove is separated to change the length of the guard tool body, The diameter of the annular opening can be reduced.

It is a perspective view showing a guard for casters according to Embodiment 1 of this invention. It is a perspective view which shows a guard tool main body. It is a front view which shows the guard tool main body in which the groove was provided. It is a front view showing a lock structure. It is a rear view showing a lock structure. It is a perspective view which shows a to-be-locked part. It is a perspective view showing a lock part. It is a perspective view explaining the mode of wearing of the guard tool for casters. It is a perspective view explaining the mode of wearing of the guard tool for casters. It is a perspective view which shows a mode that the guard tool for casters was mounted to the caster. It is a perspective view which shows the guard for casters by Embodiment 2 of this invention. It is a perspective view which shows the cover for the conventional caster.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1
The guard device for casters according to this embodiment is shown in FIG. The caster guard of FIG. 1 is used for a caster 120 and includes a guard main body 10. Furthermore, a groove 20 and a lock structure 30 are provided in the guard tool main body 10.

  The guard tool main body 10 has a rectangular plate shape as shown in FIG. In the guard device body 10, the long side of the rectangle is a length that surrounds the caster 120. The guard tool body 10 is made of a flexible material which does not break even when bent, such as a synthetic resin. The overhanging portion 11 is formed such that the guard tool main body 10 is in contact with the floor, that is, the lower portion of the guard tool main body 10 has a larger width and protrudes from one surface of the guard tool main body 10. The overhanging portion 11 moves the center of gravity of the guard tool main body 10 downward, and prevents the guard tool main body 10 from falling down when the caster guard tool is attached to the caster 120 and used.

  Although the guard device body 10 is made of a flexible material as described above, one surface of the guard device body 10 has a large number of grooves as shown in FIG. 20 are provided at substantially equal intervals. In FIG. 3, reference numeral 20 is attached to a representative groove. The groove 20 is formed parallel to the short side between one short side and the other short side of the rectangular guard tool body 10. These multiple grooves 20 allow the guard device body 10 to be bent in a large ring shape such that one surface of the guard device body 10 is inside. That is, by providing the groove 20, the convex portion 12 in which the projecting portion 11 is positioned at the lower portion is formed, and the guard tool main body 10 can be bent in an annular shape such that the convex portions 12 face inward. . Thereby, the guard tool main body 10 will form the opening 10a.

  Lock structures 30 are provided on both short sides of the rectangular guard device body 10. As shown in FIGS. 4 and 5, the lock structure 30 includes a lock portion 31 provided on one short side of the guard tool body 10, and a locked portion 32 provided on the other short side. It consists of

  The to-be-locked portion 32 is provided with protrusions 32 a integrally provided with the four convex portions 12 located on the other short side. That is, the locked portion 32 has a configuration in which the convex portion 12 and the protrusion 32 a are combined. For example, in the convex part 12 located in the outermost side, as shown in FIG. 6, the protrusion 32a of the to-be-locked part 32 is provided in the upper part of the convex part 12, and protrudes in the adjacent groove | channel 20. The protrusion 32 a is in the shape of a triangular prism having a height L 1 and a length L 2, and the tip of the protrusion 32 a is directed to the groove 20. The other three projections 32a are similar.

  In addition, since the groove 20 adjacent to the locked portion 32 is thinner than the convex portion 12, it is easy to cut. That is, the length of the guard tool main body 10 can be shortened by cutting the groove 20 on the side where the projection 32 a of the locked portion 32 protrudes. And when the groove | channel 20 adjacent to the to-be-locked part 32 located in innermost is cut | disconnected, the length of the guard tool main body 10 can be shortened most.

  The lock portion 31 is detachably fitted to the locked portion 32 located on the outermost side of the guard tool main body 10. The lock portion 31 is provided on one short side of the guard tool main body 10 and is provided integrally with the guard tool main body 10. As shown in FIG. 7, the lock portion 31 has a plate shape having the same thickness L3 as the convex portion 12 of the guard tool main body 10. A recess 31 a is provided at a width L 4 from the tip of the lock portion 31. As a result, the convex portion 31 b is formed at the tip end portion of the lock portion 31. The convex portion 31 b is a portion fitted with the groove 20 of the locked portion 32 located on the outermost side, and the concave portion 31 a is a portion fitted with the convex portion 12 of the locked portion 32 located on the outermost side.

  When the groove 20 positioned on the outermost side of the guard device body 10 and the convex portion 31 b are fitted, and the convex portion 12 and the concave portion 31 a of the locked portion 32 positioned on the outermost side of the guard device body 10 are fitted. A lock groove 31c having a length L2 and a length L2 is opened at a position facing the projection 32a of the locked portion 32. That is, the lock groove 31 c fits with the projection 32 a of the locked portion 32. Thus, the lock portion 31 is prevented from separating from the locked portion 32.

  The above is the configuration of the caster guard. Next, the operation of the caster guard will be described. When cables are placed on the floor, for example, when using an anesthesia machine, a caster guard is attached to the caster 120 of the anesthesia machine. As shown in FIG. 8, the installer who mounts the caster guard arranges the guard main body 10 of the caster guard so as to surround the caster 120.

  After arranging the guard tool main body 10 of the caster guard tool, as shown in FIG. 9, the installation worker lifts the locked portion 32 provided on the other short side. Next, the installer performs the following operation on the outermost locked portion 32. That is, in a state where the projection 32a of the locked portion 32 is positioned above the lock groove 31c of the lock portion 31, the mounting operator fits the convex portion 31b of the lock portion 31 into the groove 20 of the guard main body 10 The convex portion 12 of the guard tool main body 10 is fitted into the concave portion 31 a of the lock portion 31.

  In this state, when a mounting person presses the locked portion 32 into the locking portion 31, the projection 32a of the locked portion 32 is fitted into the locking groove 31c of the locking portion 31. Thereby, as shown in FIG. 10, the opening 10a is formed by the guard tool main body 10 of the guard device for casters, the caster 120 is accommodated in the opening 10a, and the guard device for caster is attached to the caster 120 . At the same time, the locked portion 32 located on the outermost side of the guard device main body 10 is fixed by the lock portion 31, and the locked portion 32 is not detached from the lock portion 31.

  Other than this, there are the following fitting methods. That is, the lock groove 31 c of the lock portion 31 is disposed to face the projection 32 a of the locked portion 32. After this, the mounting worker holds the lock portion 31 and the locked portion 32 by hand and applies a force. Since the projection 32a of the locked portion 32 is in the shape of a triangular prism, the projection 32a pushes the convex portion 31b of the lock portion 31 into the convex portion 31b, and enters the concave portion 31a of the lock portion 31 12 is fitted.

  By the way, when the diameter of the annular opening 10a formed by the guard tool main body 10 of the guard for caster is larger than that of the caster for mounting the guard for caster, the guard for the movement of the caster 120 is used. 10 does not follow smoothly. In this case, since the four locked portions 32 are provided side by side on the other short side of the guard tool body 10, the installer cuts out the groove 20. As a result, since the locked portion 32 is cut off together with the groove 20, the diameter of the annular opening 10a is reduced and adjusted, and then the caster guard is attached to the caster 120.

  Thus, according to this embodiment, even if there are various cables at the place where the caster 120 is used, the caster 120 can pinch or step on the cable wedge by mounting the caster guard on the caster 120. You can prevent. Further, according to this embodiment, since the diameter of the opening 10a of the caster guard for storing the caster 120 can be changed, it is possible to use one caster guard for casters of various sizes. .

Second Embodiment
In the first embodiment described above, a large number of grooves 20 are provided to make it possible to deform the opening 10a of the guard main body 10 in an annular shape, but in this embodiment, the following is performed.

  The caster guard according to this embodiment is shown in FIG. In this embodiment, the same or corresponding components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof is omitted. The caster guard according to this embodiment is mounted on the caster 120 as in the first embodiment, but differs from the caster guard of the first embodiment in the following points. That is, although a large number of grooves 20 are provided in the guard tool main body 10 in the first embodiment, four grooves 20 are provided between the lock portion 31 and the locked portion 32 in the second embodiment.

  When the caster guard is mounted on the caster 120, the installer bends a portion of the groove 20 provided between the lock portion 31 and the locked portion 32. Thereby, the shape of the opening 10a formed by the guard tool main body 10 becomes a square shape.

  According to the caster guard device of this embodiment, as in the first embodiment, even if there are various cables at the place where the caster 120 is used, the caster guard device is attached to the caster 120 so that the caster can be used. It is possible to prevent the 120 from pinching or stepping on the cable rod. Furthermore, according to this embodiment, since the four grooves 20 are provided between the locking portion 31 and the locked portion 32, the process for forming the grooves 20 can be simplified.

  In the second embodiment, the shape of the opening 10a formed by the guard tool main body 10 is a square, but the shape of the opening 10a is a square or more depending on the number of the grooves 20 provided in the guard tool main body 10. It may be configured to be square.

10 guard tool main body 10a opening 11 overhang 12 convex part (convex part on the main body side)
20 Grooves (grooves for bending)
30 lock structure 31 lock portion 31a recessed portion (recess portion on the lock portion side)
31b convex portion 31c lock groove 32 locked portion 32a protrusion

Claims (3)

A guard device for a caster mounted on a caster,
A guard plate body made of a flexible material and shaped like a rectangular plate to surround the caster;
A bending groove provided in the guard main body between the one short side and the other short side of the guard main body and in line with the other short side;
A lock structure in which one short side of the guard body is detachably fitted and fixed to the other short side when the guard body is bent to form an opening surrounding the caster;
Equipped with
A plurality of the lock structures are provided side by side with a lock portion provided on one short side of the guard tool main body and a space on the other short side of the guard tool main body, and fitted with the lock portion And the lock portion is engaged with the outermost lock portion to form the opening.
Guard device for casters characterized by. The lock portion includes a concave portion on the lock portion side fitted with a convex portion on the main body side formed by providing a groove in the guard tool main body, and a lock groove provided on a side wall of the concave portion.
The locked portion is provided on a side wall of the convex portion on the main body side, is provided so as to protrude from the bending groove, and includes a protrusion that engages with the locking groove.
The guard device for casters according to claim 1, characterized in that: The bending groove is provided in a plurality between the lock portion provided on one short side of the guard tool main body and the other short side.
The guard device body forms an annular opening with the bending grooves when one short side is fixed to the other short side by the lock structure.
The guard device for casters according to claim 1 or 2 characterized by things.

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