JP4128563B2 - Fall prevention tool - Google Patents

Description

  The present invention relates to a fall prevention tool for preventing an article stored in a luggage placing table from falling.

Conventionally, as this type of fall prevention device, a device has been proposed in which a band plate-like fall prevention plate is erected substantially vertically in the vicinity of an end portion of a shelf plate supported by a support column. (For example, refer to Patent Document 1).
Moreover, as a simple fall prevention tool, what is comprised by a elongate belt, spans the said belt between support | pillars, and winds the both ends of a belt around each support | pillar, and is also considered.
JP 2003-159136 A

  However, since the former fall prevention tool needs to assemble a mounting bracket at each mounting position of each shelf board, there is a problem that the number of parts increases and the assembly becomes troublesome. In addition, since the mounting bracket has a complicated structure, there is a problem that the cost increases. Furthermore, since the belt-like fall prevention plate is disposed at a position where it is suspended substantially vertically with respect to the shelf board, there is also a problem that it obstructs the work of taking in and out the articles on the lower shelf board. In addition, the latter fall prevention device requires a laborious work of winding and fixing the end portion of the belt around the support column, and the load placed on the shelf board is obstructed, and There is also a problem that it is difficult to attach the belt.

  The present invention has been made in view of the above problems, and provides a fall prevention device that is simple in structure, easy to attach to a shelf, and can reliably prevent an article from falling. It is an object.

The fall prevention device of the present invention is a fall prevention device that is stretched between columns that are erected at the four corners of the load table, and includes a belt and attachment portions to the columns that are provided at both ends of the belt. The mounting portion has an L-shaped mounting body that abuts on the side surface of the support column, an engagement protrusion that engages with a part of the support column, and an expansion / contraction means that can expand and contract the mounting body in the longitudinal direction of the belt. The expansion / contraction means includes a slide piece that can move in the direction of increasing the length of the belt with respect to the mounting body, and a spring that biases the slide piece toward the belt, and is provided in the longitudinal direction of the belt. When a tensile force is applied, the slide piece is movable in the direction of increasing the length of the belt against the biasing force of the spring .

The fall prevention device of the present invention may be provided with a length adjusting means for adjusting the length of the belt on at least one end side of the belt .

Moreover, the fall prevention tool of this invention may be provided with the magnet in the attachment main body .

According to the fall prevention device of the present invention, the fall prevention device is stretched between the support columns erected at the four corners of the luggage placing table, the belt, and attachment portions to the support columns provided at both ends of the belt; An L-shaped mounting body that abuts against the side surface of the column, an engagement protrusion that engages with a part of the column, and an expansion / contraction means that can expand and contract the mounting body in the longitudinal direction of the belt. And the expansion / contraction means includes a slide piece that can move in the direction of increasing the length of the belt with respect to the mounting body, and a spring that biases the slide piece toward the belt, When a tensile force is applied in the direction, the slide piece can move in the direction of increasing the length of the belt against the biasing force of the spring, so the slide piece can be moved against the biasing force of the spring. By moving in the direction of increasing the length of the belt Can be used to fine tune the tension of the belt, it is possible to attach and detach the mounting body relative to easily and reliably struts.
Further, the belt can be held at an appropriate tension by the urging force and restoring force of the spring, and the article placed on the luggage placing table can be effectively prevented from falling.

  Further, in the case where a length adjusting means for adjusting the length of the belt is provided on at least one end side of the belt, by adjusting the length of the belt, it is possible to prevent the load mounting table having different distances between the columns. Can also be attached, and has the advantage of excellent versatility.

  In addition, in the case where the magnet is provided in the mounting body, when the support column is made of a material containing a magnetic body, the mounting body can be maintained in the state of being attracted to the support column, so that the mounting position on the support column is difficult to shift. . Also, in the work of attaching the mounting body to the post, after attaching the mounting body provided at one end of the belt to the post, when attaching the mounting body provided at the other end of the belt to another post, first Since the attachment main body attached to the column is difficult to drop off from the column, the attachment work can be further quickly and reliably performed.

  Hereinafter, the fall prevention tool 1a concerning one Embodiment of this invention is demonstrated based on drawing.

  As shown in FIG. 1, the fall prevention device 1 a includes a long belt 2 and a pair of attachment portions 3 and 3 provided at both ends of the belt 2. As shown in FIG. 12, the fall prevention belt 1 is attached to a steel rack L in which a plurality of shelf boards B for loading luggage are arranged in the vertical direction between four vertical columns P. Is. As shown in FIGS. 8 and 9, the pillars P are substantially square shapes having a U-shaped cross-sectional view. A plurality of attachment holes Q for attaching a shelf board or other parts are formed.

  As shown in FIG. 1, the belt 2 is a woven polypropylene resin fiber having a length of 1950 mm, a width of 50 mm, and a thickness of 1.5 mm, and has flexibility, and has both ends. Buckles 4 and 4 are attached, and the length is adjustable.

  As shown in FIG. 1, the attachment portions 3 and 3 are formed of an L-shaped attachment body 5, an engagement protrusion 6 that can be engaged with the attachment hole Q of the support P, and the length of the belt 2 relative to the attachment body 5 And an expansion / contraction mechanism 7 that can expand and contract in the direction.

  Since the attachment portions 3 and 3 are formed in a symmetrical shape as shown in FIG. 1, in the following description, the attachment portion provided at the left end portion of the belt 2 in FIG. 3 and the attachment part 3 provided at the right end of the belt 2 is denoted by the same reference numeral, and the description thereof is omitted.

  The mounting body 5 is made of polypropylene resin, and as shown in FIGS. 2 and 3, the first abutting portion 8 that abuts on one of the two side surfaces adjacent to the corner of the column P and the other surface abuts. And a second abutting portion 9 in contact therewith.

  As shown in FIGS. 2 and 3, the first abutting portion 8 is a substantially rectangular plate shape with a length of about 67 mm and a width of about 33 mm, at a position facing the engaging protrusion 6 of the second abutting portion 9. A position confirmation window 10 is formed. The surface of the first contact portion 8 that faces the column P is formed to be flush with the side surface of the column P. The other surface is formed so that the expansion / contraction mechanism 7 can be attached, and a guide portion 12 for guiding a mounting position of a slide member 11 described later in the expansion / contraction mechanism 7 and a stopper 13 for regulating a slide distance of the slide member 11. And a pair of bolt insertion part 14 for attaching the slide member 11 is formed.

  The guide part 12 is composed of rail parts 121, 121 arranged opposite to each other, and a positioning part 122 arranged at a right angle to the rail parts 121, 121 on one end side of the rail parts 121, 121. Is formed. The stopper 13 is provided at right angles to the rail portions 121 and 121 so as to face each other. Moreover, the bolt insertion part 14 is formed in the cylindrical shape which consists of the large diameter part 141 and the small diameter part 142, as shown in FIGS. A bolt insertion hole 143 is formed in the bolt insertion portion 14 in the axial direction, and a female screw is engraved inside the bolt insertion hole 143.

  As shown in FIGS. 2 and 3, the second abutting portion 9 is provided in an L shape in a side view from one end of the first abutting portion 8, and has a substantially rectangular shape with a length of about 67 mm and a width of about 37 mm. An attachment / detachment projection piece 15 having a plate shape and having a peripheral edge formed in an arc shape is extended on the side connected to the first contact portion 8. As shown in FIGS. 2 and 3, a disk-shaped protruding portion 16 and a rib 17 having a predetermined height are formed on the surface of the second contact portion 9 that faces the support P. The protruding portion 16 is provided at the center in the vertical direction on the free end side of the second contact portion 9, and a magnet 18 is embedded inside the protruding portion 16. The ribs 17 are arranged in parallel on both sides of the projecting portion 16 and the upper and lower end portions of the second contact portion 9.

  The engagement protrusion 6 is sized to be fitted into the attachment hole Q of the support P, and is disposed in the vicinity of the protrusion 16 of the second contact portion 9. It protrudes in the vertical direction from the surface on the opposite side.

  As shown in FIGS. 6 to 9, the expansion / contraction mechanism 7 includes a slide member 11 and a spring member 19. As shown in FIGS. 4 and 5, the slide member 11 has a substantially rectangular plate shape with a length of about 62 mm and a width of about 42 mm. The slide member 11 has a pair of horizontally long slide holes 20 and 20 and a vertically long shape through which the belt 2 is inserted. A belt insertion hole 21 is provided, and the slide holes 20 and 20 are formed to have a size that can be inserted into the small diameter portion 142 of the bolt insertion portion 14 formed in the first contact portion 8. As shown in FIG. 5, the slide member 11 has a pair of vertically long locking pieces 22, 22 projecting from the surface of the mounting body 5 facing the first contact portion 8. . The locking pieces 22 and 22 are arranged in parallel with a distance corresponding to the sliding distance of the sliding member 11 when the sliding member 11 is slid.

  As shown in FIGS. 6 and 7, the spring member 19 is a one-turn torsion coil spring, and includes a ring portion 191, an attachment main body pressure contact portion 192 extending from the ring portion 191, and a slide member pressure contact portion 193. ing. The inner diameter of the ring portion 191 is formed to be slightly larger than the large diameter portion 141 of the bolt insertion portion 14 formed in the first contact portion 8, and the length of the slide member pressure contact portion 193 is the mounting body It is longer than the length of the press contact portion 192.

  Here, the assembly procedure of the fall prevention tool 1a will be described. First, as shown in FIG. 6, the ring portion 191 of the spring member 19 is attached to the large diameter portion 141 of the bolt insertion portion 14 of the attachment main body 5, and the attachment main body pressure contact portion 192 is attached to the first contact portion 8 of the attachment main body 5. It is made to contact | abut to the positioning part 122 currently formed. Next, the slide member 11 is disposed opposite to the first contact portion 8 of the mounting body 5, and the small diameter portion 142 of the bolt insertion portion 14 is inserted into the slide hole 20 of the slide member 11 as shown in FIG. 8. Then, in a state where the slide member pressure contact portion 193 of the spring member 19 is in pressure contact with one of the locking pieces 22 of the slide member 11, the bolt 24 having the washer 23 interposed is tightened, and the slide member 11 is attached to the mounting body 5. Install. Finally, as shown in FIG. 10, the belt 2 with the buckle 4 attached is inserted into the belt insertion hole 21 formed in the slide member 11.

  Next, the attachment method of the fall prevention tool 1a is demonstrated. First, as shown in FIG. 12, one attachment portion 3 of the fall prevention tool 1 a is attached to the support P on the front side of the rack L. More specifically, as shown in FIG. 8, the engagement protrusion 6 of one attachment portion 3 is inserted into the attachment hole Q formed in the side surface portion of the column P. The first abutting portion 8 and the second abutting portion 9 of the attaching portion 3 are adjacent to each other in the state where the attaching main body 5 is held by the rack L by the attractive force of the magnet 18 embedded in the attaching main body 5. The two sides are brought into contact with each other. Next, the other attachment portion 3 is attached to the other support column P in the same manner as one attachment portion 3 while the belt 2 is stretched over the front side of the rack L and the belt 2 is pulled in the longitudinal direction. Finally, the length of the belt 2 is adjusted with the buckle 4 so that the belt 2 is strongly stretched in the longitudinal direction. When removing the fall prevention device 1a from the rack L, it is sufficient to perform the reverse procedure of the attachment work. First, after loosening the belt 2 with the buckle 4, hold the attaching / detaching protrusion 15 of the attachment body 5, The attachment part 3 is removed from the support column P.

  As described above in detail, the fall prevention device 1a of the present embodiment includes an L-shaped attachment body 5 that contacts the side surface of the support P, an engagement protrusion 6 that engages with the attachment hole Q of the support P, An extension mechanism 7 that allows the attachment main body 5 to extend and contract in the longitudinal direction of the belt 2 is provided, and the extension member 7 is movable with respect to the attachment main body 5 in the direction of increasing the length of the belt 2. And the spring member 19 that urges the slide member 11 toward the belt 2 side. When the attachment main body 5 is pulled when the fall prevention tool 1a is attached to or detached from the support column P, the slide member 11 is moved to the spring member 19. By moving the belt 2 in the direction of increasing the length of the belt 2 against the urging force, the tension of the belt 2 is finely adjusted, and the belt can be held at an appropriate tension. As a result, the articles placed on the shelf board B can be effectively prevented from falling. Further, since the belt 2 is not pulled excessively, it is possible to effectively prevent the attachment main body 5 and the engagement protrusion 6 from being detached from the support column P or damaged.

  When removing the fall prevention tool 1 a from the rack L, if the mounting body 5 is pulled away from the support column P, the slide member 11 resists the urging force of the spring member 19 and the belt against the mounting body 5. Since the length 2 is moved in the direction of increasing the length, the mounting body 5 can be easily detached from the column P.

  Moreover, since the fall prevention tool 1a of this Embodiment is a structure which can be easily attached or detached to the general purpose rack L, it is excellent in convenience. Further, since it can be stored compactly separately from the rack L when not required, it is easy to take in and out the luggage, and the storage place is not troubled.

  Further, since the length of the belt 2 can be adjusted by the buckle 4, it can be attached to the rack L having a different frontage, and is excellent in versatility. Furthermore, in this Embodiment, as shown in FIG. 13, although the fall prevention tool 1a was attached to the front part of the rack L, an attachment part is not restricted to this. For example, as shown in FIG. 14, the rack L may be attached so as to surround both sides of the rack L and the front surface. In this way, it is possible to prevent the luggage from falling from the side of the rack L.

  Moreover, in this Embodiment, since the magnet 18 is embed | buried under the 2nd contact part 9 of the attachment main body 5, the attachment main body 5 attracts | sucks to the support | pillar P, and does not drop easily. Accordingly, the attachment portion 3 on the other end side of the belt 2 is maintained while the engagement protrusion 6 provided on the attachment portion 3 on the one end side of the belt 2 is inserted into the attachment hole Q of the one pillar P. Can be attached to the other column P, and the work burden can be reduced.

  In addition, since the position confirmation window 10 is provided in the first contact portion 8, the position of the engagement protrusion 6 can be confirmed as shown in FIG. Can be removed smoothly.

  In addition, the fall prevention tool concerning this invention is not limited to the structure of the fall prevention tool 1a of this embodiment. For example, the configuration of the expansion / contraction mechanism 7 is not limited to the slide member 11 and the spring member 19, and the belt 2 may have elasticity, or the attachment main body 5 and the slide member 11 may be connected by a tension coil spring. .

  Moreover, in this Embodiment, although the magnet 18 was embed | buried in the surface on the side facing the support | pillar P in the 2nd contact part 9 of the attachment main body 5, the position which provides the magnet 18 is not restricted to the said place. That is, when the attachment portion 3 is attached to the column P, it is only necessary that the attachment main body 5 can be attracted to the column P. For example, the engagement protrusion 6 may be formed of a magnet, or the second contact portion. The whole 9 may contain a magnetic substance.

  In this embodiment, the belt 2 is flexible by weaving polypropylene resin fibers into a narrow band shape, but the material is not limited to this, and the belt 2 has flexibility. It does not have to be. Therefore, it may be formed of other synthetic resin fibers or natural fibers such as cotton, or may be a metal strip.

  Further, the dimensions of the attachment portion 3 and the belt 2 are not limited to the above-described embodiment, and for example, the width may be narrowed like a fall prevention device 1b shown in FIG.

(A) It is a top view of fall prevention tool 1a concerning one embodiment of the present invention. (B) It is a front view of the fall prevention tool 1a concerning one Embodiment of this invention. It is a front view of the attachment main body 5 which comprises the fall prevention tool 1a which concerns on this Embodiment. FIG. 3 is a partially cutaway plan view of the mounting body 5 shown in FIG. 2. It is a front view of the slide member 11 which comprises the fall prevention tool 1a which concerns on this Embodiment. It is a rear view of the slide member 11 shown in FIG. It is explanatory drawing which shows the state by which the spring member 19 is arrange | positioned in the normal position. It is explanatory drawing which shows the state which moved the slide member 11 all the slid distance. It is a partially cutaway sectional view showing a state in which the attachment portion 3 is attached to the column P. FIG. 6 is a partially cutaway cross-sectional view showing a state in which the engagement protrusion 6 of the attachment portion 3 is removed from the support column P. It is a front view of the attachment part 3 in the state in which the slide member 11 is arrange | positioned in the normal position. It is a front view of the attachment part 3 in the state which moved the slide member 11 to the full slide distance. It is a general-view perspective view which shows the state which attached the fall prevention tools 1a and 1b to the rack L. FIG. It is explanatory drawing which shows the example of attachment with respect to the rack of the fall prevention tool 1 (1a, 1b). It is explanatory drawing which shows the other example of attachment with respect to the rack of the fall prevention tool 1 (1a, 1b).

Explanation of symbols

1 (1a, 1b) Fall prevention tool 2 Belt 3 Attachment part 4 Buckle (length adjusting means)
5 Mounting body 6 Engagement protrusion 7 Expansion / contraction mechanism
11 Slide member (slide piece)
19 Spring member (spring)
B Shelf board (loading table)
P prop

Claims (3)

A fall prevention device stretched between struts erected at the four corners of the luggage platform,
It has a belt and attachment parts to the pillars provided at both ends of the belt,
Mounting portion, have an L-shaped mounting body that abuts against the side surface of the strut, the engaging projection which engages a portion of the strut, and a stretchable elastic means mounted body in the longitudinal direction of the belt ,
The expansion / contraction means includes a slide piece that can move in the direction of increasing the length of the belt with respect to the mounting body, and a spring that biases the slide piece toward the belt, and a tensile force is applied in the longitudinal direction of the belt. A fall prevention device , wherein the slide piece is movable in the direction of increasing the length of the belt against the biasing force of the spring . 2. The fall prevention device according to claim 1, wherein a length adjusting means for adjusting the length of the belt is provided on at least one end side of the belt. The fall prevention tool according to claim 1 or 2 , wherein a magnet is provided on the mounting body.

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