Patent Description:
In general, multilayer rack structures are installed with regular intervals in a warehouse, etc. to stack and keep articles in the unit of pallet as much as possible in a limited space, and workers move the articles stacked on the rack structures or stack articles using conveying machines such as an electrified industrial vehicle or a large cart. However, there is a problem that a safety accident that such conveying machines hit against rack structures, etc. occurs while keeping or conveying articles, so it has been required to develop an apparatus that can protect rack structures. In relation to this problem, in <CIT>, there has been proposed a rack post impact absorption device that includes: a shock absorbing member that is an elastic member, has an accommodation seat groove in which a rack post is accommodated, absorbs external shock, which is generated when the rack post collides, on the front and the sides, and distributes the external shock; and a fixing body that has an insertion hole in which the shock absorbing member is inserted, is made of a synthetic resin material or a metallic material so that the inserted shock absorbing member can be fixed to the rack post, and has a clip portion having predetermined elasticity. However, according to the rack post impact absorption device, it is required to additionally install a fence or a bollard around the rack post to prevent external shock itself. In <CIT>, there has been proposed a prefabricated shock absorbing bollard that includes: a shock absorber having several air pockets to be able to absorb shock that is transmitted from the outside; and a protection cover configured to be detachably attached to the outside of the shock absorber and preventing damage to the shock absorber, and to which a reflection plate can be attached so that the bollard can be recognized even at night. However, there is a defect that it is difficult to vertically or horizontally expand a fence. <CIT> relates to a barrier for protecting stock shelving in warehouses, comprising rails coupled at their ends to posts with an impact absorption mechanism. <CIT> relates to an extendable fence system including vertical supports made of segments which are screwed to each other and which hold between them attachment pieces fixing horizontal members as required.

Accordingly, the present disclosure intends to provide a bollard fence that makes it possible to manufacture a sectional fence that can be expanded using one or more of a ground fixing member, a vertical pole, a horizontal frame, a swing connector, or various kinds of connecting members, couplers, and connectors to be able to prevent approach collision around a multilayer rack structure.

The present disclosure relates to a bollard fence and an object of the present disclosure is to provide a bollard fence that makes it possible to assemble and manufacture various types of expandable fences to be able to safely protect racks.

In order to achieve the object,
the present disclosure provides a bollard fence that can be installed around a rack.

The present invention is as defined in claim <NUM>.

The present disclosure relates to a bollard fence and has an advantage that it is possible to simply expand and manufacture a sectional fence in various types to be able to prevent approach collision around a multilayer rack structure.

Hereafter, the present disclosure is described in detail with reference to the accompanying drawings.

The terms and words used in the present specification and claims should not be interpreted as being limited to typical meanings or dictionary definitions, but should be interpreted as having meanings and concepts relevant to the technical scope of the present disclosure based on the rule according to which an inventor can appropriately define the concept of the terms to describe most appropriately in the best possible way that he or she knows for carrying out the disclosure.

The present disclosure relates to a bollard fence that can prevent approach collision around a multilayer rack structure.

The bollard fencer, in a broad meaning, as shown in <FIG>, may include: a ground fixing member <NUM>; a vertical pole <NUM> that is installed on the ground fixing member; a top cap <NUM> that can be fitted in the upper end of the vertical pole; and a sign <NUM> that can be mounted on the top cap,.

In more detail, the ground fixing member <NUM> has: a ground supporting portion <NUM> enabling the bottom thereof to be installed and fixed on the ground: and an open groove <NUM> formed on the top thereof, so the vertical pole <NUM> or the swing connector <NUM> can be installed and inserted through the open groove on the top.

The vertical pole <NUM> is a hollow pillar type member and the lower portion thereof can be installed in the open groove <NUM> of the ground supporting portion.

The swing connector <NUM> is formed in a "<IMG>" shape having: a lower coupling portion <NUM>; and an upper coupling ring <NUM> having a plurality of inner rail grooves 102a on the inner wall, the lower coupling portion <NUM> can be inserted in the open groove <NUM> of the ground fixing member or installed at the upper end of the vertical pole <NUM>, ring adapters <NUM> having various inner diameters are coupled to the upper coupling ring <NUM>, and the ring adapters <NUM> have a plurality of rails <NUM> on the outer wall thereof, so the swing counter <NUM> is manufactured such that ring adapters <NUM> having various inner diameters can be coupled to the inner rail grooves 102a of the upper coupling ring <NUM> in accordance with the thickness of the horizontal frame <NUM>.

The sign <NUM> has: a fastening protrusion <NUM> having a locking portion 131a at the lower portion thereof; and an indication portion <NUM> at the upper portion thereof.

A conical top cap that can be fitted in the top of the vertical pole has: an insertion portion <NUM> having a friction protrusion 121a at the lower portion thereof; and an exposed portion <NUM> at the upper end thereof, and further has: a fastening hole (not shown) formed through the centers of the insertion portion and the exposed portion; and a coupling seat groove <NUM> formed across the fastening hole (not shown) of the exposed portion (not shown). The outer diameter of the insertion portion <NUM> is smaller than the inner diameter of the vertical pole, so the insertion portion can be inserted in the vertical pole <NUM>. The fastening protrusion <NUM> formed at the lower portion of the indication portion of the sign <NUM> is inserted in the fastening hole and is fastened to the fastening hole <NUM> using the locking portion 131a, thereby being able to prevent the sign from separating from the fastening hole. The bottom of the indication portion is seated in the coupling seat groove <NUM>.

A plurality of vertical poles <NUM> can be fitted in the plurality of ground fixing members <NUM> and a horizontal frame can be installed between the vertical poles <NUM> using the L-connecting member <NUM> or the horizontal connecting member <NUM>. The L-connecting member <NUM> has: two coupling portions <NUM> perpendicularly formed such that vertical frames <NUM> at both ends of a fence and the horizontal frame <NUM> can be coupled; and a fastening slope <NUM> having a plurality of surface contact fastening portions 52a to contribute to fastening to an outer wall between the two coupling portions <NUM> using a fastener <NUM> such as a bolt.

A first end of the horizontal connecting member <NUM> may be coupled to a first end of a horizontal frame <NUM> at the center of a fence and a second end of the horizontal connecting member may be coupled in surface contact to the fastening slope <NUM> of the L-connecting member, whereby it is possible to extend the fence.

The two-stage connector <NUM> has: a vertical extension coupling groove <NUM> formed at the upper end thereof; and a fastening portion <NUM> formed at the lower portion thereof and having a fastening through-hole 82a formed to be able to be fastened to the fastening slope <NUM> on the outer wall of the L-connecting member <NUM>. The fastening through-hole of the fastening portion and the surface contact fastening portion of the fastening slope can be coupled using the fastener <NUM>, such as a bolt, with the fastening portion of the two-stage connector in surface contact with the fastening slope <NUM> of the L-connecting member, and the fastening portion <NUM> of the two-stage connector can be coupled to the outer wall of the horizontal connecting member coupled to the L-connecting member with the fastening slope of the L-connecting member fastened to the horizontal connecting member <NUM>. The sub-extension frame <NUM> is vertically installed in the vertical extension coupling groove of the two-stage connector and the T-coupler <NUM> the L-coupler <NUM> is used between sub-extension frames vertically installed, whereby it is possible to extend a fence in a multistage type.

Three sub-extension frames can be fitted to the T-coupler <NUM> and two sub-extension frames can be fitted to the L-coupler <NUM>.

As shown in <FIG>, the lower end of a vertical pole is coupled to the open groove <NUM> of a ground fixing member <NUM>, a top cap <NUM> can be fitted in the upper end of the vertical pole using the insertion portion <NUM> of the top cap, and the friction protrusion 121a formed on the outer wall of the insertion portion can prevent the top cap <NUM> from separating from the vertical pole. The fastening protrusion <NUM> of a sign <NUM> can be fitted in the fastening hole (not shown) formed through the center of the top cap and the locking portion 131a is formed at the end of the fastening protrusion, whereby it is possible to prevent the sign from separating from the fastening hole (not shown). The bottom of the sign is seated and held in the coupling seat groove <NUM> formed at the exposed portion <NUM> of the top cap <NUM>.

Further, a swing connector <NUM> can be installed in the open groove <NUM> of the ground fixing member, as shown in <FIG>. Two swing connectors can be coupled to two ground fixing members, respectively, and a horizontal frame <NUM> is installed horizontally between the upper coupling rings <NUM> of the two swing connectors. In detail, the horizontal frame <NUM> may be installed after ring adapters are coupled to upper coupling rings <NUM>, respectively, using the inner rail grooves 102a of the upper coupling rings <NUM> and the rails <NUM> of the ring adapters <NUM> in accordance with the thickness of the horizontal frame, and, as shown in <FIG> and <FIG>, the lower coupling portion <NUM> of the swing connector can be coupled not only to the ground fixing member <NUM>, but to the upper end of the vertical pole <NUM>, so it is possible to adjust the height of a fence in accordance with the length of the vertical frame.

Further, as shown in <FIG>, vertical poles can be coupled to the opening grooves of two ground fixing members, respectively, the first ends of L-connecting members <NUM> are coupled to the upper ends of the vertical poles, respectively, and a horizontal frame is installed between the second ends of the L-connecting members <NUM>, whereby it is possible to assemble and manufacture a set of fences (set A).

The one set of fences can be extended horizontally or vertically. As shown in <FIG>, in order to vertically extend a set of fences (set A), two-stage connectors <NUM> having the vertical extension coupling groove <NUM> and the fastening portion <NUM> can be fastened respectively to the fastening slopes of the L-connecting members. In this case, the fastening portions of the two-stage connectors having the fastening through-hole 82a are coupled in surface contact with the surface contact slopes of the L-connecting members using fasteners <NUM>, sub-extension frames <NUM> are vertically installed in the vertical extension coupling grooves <NUM> of the two-stage connectors, the first ends of the L-coupling members <NUM> are coupled to the upper ends of the vertically installed sub-extension frames, respectively, and one sub-extension frame is horizontally coupled to each of the second ends of the L-coupling members. Accordingly, it is possible to vertically extend the set of fences (set A).

Further, it is possible to horizontally extend a set of fences. As shown in <FIG>, in order to horizontally extend a set of fences (set A), vertical poles can be coupled to the open grooves of two ground fixing members, respectively, the first ends of L-coupling members <NUM> are coupled to the upper portions of the vertical poles, a horizontal frame is installed between the second ends of the L-connecting members <NUM>, whereby it is possible to assemble and manufacture a set of fences (set A). In this case, one ground fixing member and one vertical pole are additionally installed, the first end of an L-coupling member is coupled to the upper portion of the vertical pole, the second end of the L-connecting member is coupled to the first end of a horizontal frame to be added, the second end of the horizontal frame is coupled to a horizontal connecting member, and the second end of the horizontal connecting member is coupled to the fastening slope of the L-connecting member of the set of fences (set A). Accordingly, it is possible to horizontally extend a set of fences. That is, the lower end of vertical poles <NUM> are coupled to the opening grooves <NUM> of a plurality of ground fixing members, the coupling portions <NUM> of the first ends of L-connecting members <NUM> are coupled to the first ends of the vertical poles, respectively, and a horizontal frame <NUM> can be installed between the coupling portions <NUM> at the second ends of the L-connecting members. In order to horizontally extend this fence, the first end of an L-connecting member <NUM> is coupled to the first end of a horizontal frame, the first end of a horizontal connecting member <NUM> is coupled to the second end of the horizontal frame, and then the second end of the horizontal connecting member is coupled in surface contact to the fastening slope <NUM> of the set of fences A to which the L-connecting member is coupled, thereby being able to extend the set of fences.

Further, a horizontally extended fence can be additionally vertically extended. As shown in <FIG>, in order to extend additionally vertically extend a horizontally extended fence, a two-stage connector <NUM> can be coupled to the fastening slope <NUM> of the L-connecting member of the horizontally extended fence using a fastener <NUM>. In this case, the fastening portion <NUM> having the fastening through-hole 82a can be coupled in surface contact to the fastening slope <NUM> of the L-connecting member <NUM> using a fastener <NUM> and a sub-extension frame <NUM> can be vertically installed using the vertical extension coupling groove <NUM> at the upper portion thereof. When a sub-extension frame is horizontally installed between vertically installed sub-extension frames, a T-coupler <NUM> or an L-coupler <NUM> can be used, depending on the position. A T-coupler is used between two sub-extension frames that are horizontally installed and one sub-extension frame that are vertically installed, and an L-coupler is used is used to couple a sub-extension frame that is vertically installed and a sub-extension frame that is horizontally installed.

Two-stage connectors are coupled to the fastening slopes of L-connecting members, respectively, sub-extension frames are vertically installed in the vertical extension coupling grooves of the L-connecting members, L-couplers <NUM> are coupled to the upper ends of the sub-extension frames at both ends, and a T-coupler <NUM> is coupled to sub-extension frames that are horizontally installed between the sub-extension frames at both ends so that the fence can be horizontally and vertically extended, as in <FIG>.

According to the present disclosure, it is possible to horizontally extend a fence using a ground fixing member, a vertical pole, an L-coupler, a horizontal coupler, and a horizontal frame.

Claim 1:
A bollard fence that can be installed around a rack, the bollard fence comprising:
two ground fixing members (<NUM>) having a ground supporting portion (<NUM>) of a lower portion thereof for fixing on the ground and an open groove (<NUM>) formed at an upper portion thereof;
two vertical poles (<NUM>) of which lower ends are installed in the open grooves;
L-connecting members (<NUM>) having two perpendicular coupling portions and having a fastening slope between the two coupling portions;
a horizontal frame (<NUM>) coupled between the L-connecting members
two-stage connectors (<NUM>) having a vertical extension coupling groove (<NUM>) formed at an upper end thereof and having a fastening portion (<NUM>) at a lower end thereof, at which a fastening through-hole (82a) is formed, to be coupled in surface contact with the fastening slope;
two sub-extension frames (<NUM>) vertically coupled using the vertical extension coupling grooves (<NUM>);
two L-couplers (<NUM>) of which first ends are coupled to upper ends of the two sub-extension frames; and
one sub-extension frame (<NUM>) horizontally coupled between second ends of the L-couplers,
wherein the vertical poles (<NUM>) are coupled to the opening grooves of two ground fixing members (<NUM>), respectively, one ends of the L-connecting members (<NUM>) are coupled to upper ends of the vertical poles, respectively, and the horizontal frame (<NUM>) is installed between second ends of the L-connecting members, whereby a fence set (set A) is assembled and manufactured; and the two-stage connectors (<NUM>) having the vertical extension coupling groove and the fastening portion are fastened respectively to the fastening slopes of the L-connecting members, the fastening portions of the two-stage connectors having the fastening through-hole are coupled in surface contact with the surface contact slopes of the L-connecting members using fasteners (<NUM>), the sub-extension frames (<NUM>) are vertically installed in the vertical extension coupling grooves of the two-stage connectors, first ends of the L-couplers are coupled to upper ends of the vertically installed sub-extension frames, respectively, and one sub-extension frame is horizontally coupled to each of second ends of the L-coupling members, whereby the fence set (set A) is vertically extended.