JP2006057319A - Chain connection device for bumping post - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chain connection device for a bumping post, which facilitates attachment/detachment of a chain by the operator, is proof against detachment of the chain by an outsider, simple in structure, and low in production cost. <P>SOLUTION: According to the structure of the chain connection device, a housing frame 20 is fixed into the bumping post 1, and chain insertion ports 22 and a connection cavity 23 are formed in the housing frame 20. Each chain insertion port 22 opens to an external surface of the bumping post 1, and the connection cavity 23 allows insertion of a chain ring 30 of the entrance inhibition chain 3 from the chain insertion port 22. Then a proximal end 24 of an engaging rod 21 is fixed to the housing frame 20, and a release end 25 of the same is protruded to the connection cavity 23, followed by loosely fitting the chain ring 30 of the entrance inhibition chain 3 onto the engaging rod 21 via the release end 25, to thereby hook the chain to the bumping post. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a chain coupling device for coupling an entrance prevention chain spanned on a pillar in a park, or a stop column that is erected along a sidewalk to separate a roadway and a sidewalk. About.

  At the entrance / exit of the park and at the boundary between the roadway and the sidewalk, a car stop column is erected for the purpose of restricting the passage of vehicles and people. In order to prevent the passage of the gap generated between the two, an ingress prevention chain is hung.

  As shown in FIG. 7, the chain connecting device 2 c in a general car stopper post is configured by a metal ring welded to the vicinity of the upper end of the pillar main body 10 c of the car stopper post 1 c. Then, an engagement member 31 such as a shackle is attached to the chain ring 30 at the end of the ingress prevention chain 3, and the chain connection device 2c is connected via the engagement member 31. In addition, the conventional vehicle stop column has this chain coupling device 2c on both sides, the chain 3 can be coupled on both sides of the column, and the chain coupling device 2c only on one side, and the chain 3 only on one side of the column. What can be connected is manufactured.

  Here, since the chain connecting device 2c having the above-described configuration protrudes from the outer surface of the vehicle stop column 1c, the pedestrian is prevented from passing in a state where the chain 3c for preventing entry is not connected, and clothes may be caught. There are problems such as hitting the body. Further, the engagement member 31 is required for connecting the ingress prevention chain 3, and the number of parts is increased accordingly. Furthermore, since the connecting portion between the chain connecting device 2c and the engaging member 31 is exposed, and the connecting mechanism can be easily seen, a configuration in which the ingress prevention chain 3 can be attached and detached without using a key or a tool. In this case, there is a drawback that a third party can easily remove the chain.

  Patent Document 1 proposes a configuration in which a chain coupling device is disposed inside a car stop column. As shown in FIG. 8, the chain coupling device 2 d protrudes into the vehicle stopper column 1 d so as to project across the mounting chamber 40 by the biasing force of the mounting chamber 40 that opens to the outside and the spring 42. Since the chain ring 30 at the end of the prevention chain 3 is attached to the mounting chamber 40, and the chain connection device 2d is provided inside the column 1d, the connection prevention chain 3 is connected. Since the chain connecting device 2d does not interfere with the pedestrian and the chain ring 30 at the end of the ingress prevention chain 3 can be directly locked when the chain is not engaged, an engagement member is required for the ingress prevention chain 3. There is an advantage of not.

Japanese Utility Model Publication No. 5-89516

  However, the chain connecting device 2d uses a tool such as a screwdriver when attaching and detaching the chain ring 30 of the ingress prevention chain 3 and the connecting rod 41, so that the connecting rod 41 resists the spring 42 and is attached to the mounting chamber 40. When the chain 3 is to be attached and detached every day, the work of attaching and detaching is greatly inconvenient. In addition, although an engagement member such as a shackle is not required for the ingress prevention chain, the chain connecting device itself has a spring mechanism, so that the structure is complicated, the manufacturing cost is high, and the diameter tends to be large. There is also a drawback that it is difficult to apply to a relatively thin support.

  The present invention has been made in view of the present situation, and an object of the present invention is to provide a new chain coupling device that does not have the above-mentioned drawbacks.

  The present invention relates to a chain connection device for a vehicle stop column for connecting a chain for preventing entry to the vehicle stop column, a chain insertion port that is fixed inside the vehicle stop column and opens to the outer surface of the vehicle stop column, and the chain A receiving frame having a connecting gap into which the chain ring of the chain for preventing entry is inserted from the insertion port, a base end fixed to the receiving frame, an open end protruding into the connecting gap, and loosely fitted from the open end A chain connecting device for a vehicle stop strut comprising an engagement rod for hooking a chain ring.

  In such a configuration, the engagement rod is fixedly disposed on the housing frame inside the support column, the open end of the engagement rod is constantly projected into the housing frame, and the engagement rod is removed with a tool or the like. The chain ring of the entry preventing chain can be detached from the engagement rod without being moved. As a result, the operator can insert the chain ring at the end of the ingress prevention chain into the connecting gap from the chain insertion port, and loosely fit the chain ring into the engagement rod without using a tool. The chain can be easily connected to the stop column. Similarly, the operator can quickly remove the chain from the stop column without using a tool by simply removing the loosely fitted chain ring from the engagement rod and removing it from the chain insertion port. Here, in such a chain coupling device, the coupling portion between the chain ring and the engagement rod is located inside the column, and the engagement mechanism between the chain ring and the engagement rod is difficult to visually recognize from the outside. For this reason, even if the chain can be removed without using a tool, it is difficult for a third party to understand the engagement mechanism, and the chain cannot be easily removed. In addition, since the connection part of a chain ring and an engagement rod is open with respect to the chain insertion opening opened on the outer surface of a support | pillar, a chain insertion opening is a grade which can insert only a single chain ring. As the width dimension, it is preferable that the connecting portion is difficult to visually recognize from the chain insertion port when the chains are connected. Further, since the chain coupling device of the present invention does not have a movable mechanism such as a spring mechanism, the structure is simple, and the chain coupling device of the present invention can be directly coupled to the chain ring of the ingress prevention chain without using an engaging member. Therefore, in the present invention, the structure of both the chain coupling device and the ingress prevention chain can be simplified.

  Here, a configuration is proposed in which the engagement rod has a hook shape with the open end directed inward of the vehicle stop column. According to such a configuration, the chain ring loosely fitted to the engagement rod is difficult to remove except for a correct attachment / detachment procedure, and it becomes more difficult for a third party to remove the chain, and the chain is also resistant to strong vibration and impact. It becomes difficult to come off.

  Further, it is proposed that the housing frame is a tubular body that penetrates the vehicle stop column substantially horizontally. In such a configuration, the chain coupling device can have a simple structure in which the engagement rod is fixed to the inside of the tubular body, and the accommodation frame in which the through hole is formed in the vehicle stop column and the engagement rod is fixed is provided. By simply inserting and fixing the through hole, the chain coupling device can be easily disposed on the vehicle stop column. In particular, since such a housing frame penetrates the vehicle stop column, the openings at both ends of the housing frame can be used as chain insertion openings, and a single housing can be provided by providing engagement hooks on both sides of the housing frame. Using the frame, the chain for preventing entry can be connected to both sides of the vehicle stop column. In addition, the cross section of the said tubular body is not restricted circularly, A polygon may be sufficient and the magnitude | size and shape may be changing along the length direction.

  As described above, the present invention includes a chain insertion port that is fixed inside the vehicle stop column and opens to the outer surface of the vehicle stop column, and a connection in which the chain ring of the chain for preventing entry is inserted from the chain insertion port. A housing frame having a gap; and an engagement rod having a base end fixed to the housing frame, an open end protruding into the coupling gap, and a chain ring loosely fitted from the open end. Therefore, an operator who knows the correct attachment / detachment procedure can easily attach / detach the chain for preventing entry without using a tool. On the other hand, since it is difficult to visually recognize the coupling mechanism, it is difficult for a third party who does not know the attachment / detachment procedure to easily remove the chain. That is, in the chain coupling device of the present invention, it is possible to realize a simple chain attaching / detaching work while preventing unnecessary removal of the chain by a third party, and to a car stopper post that frequently attaches / detaches the chain. Excellent effect when applied. In addition, since the structure is simple, there is an advantage that it can be disposed even on a column having a small diameter and is not easily broken even if it is frequently attached and detached. Furthermore, since no connecting member is required for the ingress prevention chain, it is possible to reduce the manufacturing costs of both the vehicle stop column and the ingress prevention chain.

  Also, if the chain insertion port has a width that allows only a single chain ring to be inserted, it is difficult to see the connection part inside the column through the chain insertion port when connecting the chain for preventing entry. It is possible to more suitably prevent a third party from removing the chain without use.

  In addition, if the engagement rod is made into a hook shape with the open end facing the inward side of the vehicle stop column, the intrusion prevention chain may come off due to improper operation or external factors such as vibration and shock. It can be surely prevented.

  In addition, when the housing frame is a tubular body that extends substantially horizontally through the vehicle stop strut, the chain connecting device has a simple structure in which an engagement rod is simply attached to the tubular body, and the vehicle stop strut By simply forming a through hole in the main body and attaching an accommodation frame in which a connecting rod is fixed to the through hole, the chain connecting device can be disposed on the vehicle stop column and has excellent productivity. In particular, in the configuration in which the ingress prevention chain is connected to both sides of the vehicle stop column, the number of parts can be reduced and the mounting work to the vehicle stop column can be performed at a time because only one housing frame is required. .

Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 to 3 show a chain coupling device 2 according to a first embodiment. The vehicle stop strut 1 of this embodiment connects an ingress prevention chain 3 (see FIG. 3) on both sides. As shown in FIGS. 1 and 2, a strut body 10 made of a metal cylinder made of steel or stainless steel is provided. The cap 11 is welded to the upper edge. This vehicle stopper column 1 has a lower portion (not shown) buried in the ground and fixed by a mounting bracket. In addition to the fixed type, there is an elevating type, a detachable type, etc. in the existing embedment mode of the vehicle stop column. However, the chain coupling device 2 of the present invention is not limited to the type of embedment of the vehicle stop column. It is also applicable to. And two circular attachment holes 12 and 12 are formed in the upper part of the column main body 10 at symmetrical positions with the center in between, and the chain connecting device 2 of the present embodiment has the attachment holes 12 and 12 formed therein. It is provided so as to pass through the center of the car stopper post 1.

  The chain coupling device 2 includes a tubular housing frame 20 penetrating inside the support column and two engagement rods 21 and 21 fixed to the housing frame 20. The housing frame 20 is made of a metal tubular body having a length substantially equal to the diameter of the column main body 10. The housing frame 20 has an outer diameter that fits in the mounting hole 12 and is inserted into the column main body 10 from the mounting hole 12 on one side, and both openings are attached to both ends. It welds in the state matched with the holes 12 and 12, and is penetrated substantially horizontally with respect to the vehicle stop support | pillar 1. And the both ends opened to the outer side surface of the car stopper post 1 are used as the chain insertion ports 22 and 22 for inserting the chain ring 30 (see FIG. 3) of the chain 3 for preventing entry, and both the chain insertion ports 22 and 22 are used. A pipe line in the housing frame 20 to be connected is defined as a connecting gap 23 for hooking the chain ring 30. The housing frame 20 of the present embodiment has an equal-width circular tube shape, and the chain insertion ports 22 and 22 that are openings thereof have a width dimension that allows only a single chain ring 30 to be inserted. It has become.

  The engagement rods 21 and 21 are respectively provided in the vicinity of the chain insertion ports 22 and 22 in the connecting gap 23 so that the chain rings 30 inserted from the chain insertion ports 22 and 22 can be latched. The engagement rod 21 is made of a metal rod having a diameter that allows the chain ring 30 to be loosely fitted. To do. Here, the open end 25 side of each engagement rod 21 is curved and has a hook shape, and is fixed so that the open end 25 faces the inside of the support column 1, and is loosely fitted to the engagement rod 21. The chain ring 30 cannot be removed simply by being pulled outward. Further, as shown in FIG. 3, the gap s between the lower edge of the open end 25 and the bottom of the housing frame 20 has a vertical width enough to allow the chain ring 30 to pass through. The engagement rod 21 is prevented from being removed carelessly. The engagement rod 21 is easily formed in the accommodation frame 20 by forming a through hole 26 in the housing frame 20, inserting the base end 24 of the engagement rod 21 into the through hole 26 and welding from the outside. The chain coupling device 2 according to the present embodiment can be fixed to the stop column 1 by simply inserting the housing frame 20 to which the engagement rods 21 and 21 are fixed into the mounting hole 12 of the column body 10 and welding. It can be arranged.

  According to such a configuration, as shown in FIG. 3, the chain ring 30 at the end of the ingress prevention chain 3 is inserted into the coupling gap 23 from the chain insertion port 22, and the tip of the chain ring 30 is placed below the open end 25. If the inner ring 30 is pushed in from the gap s and is loosely fitted to the engagement rod 21 from the open end 25, the chain ring 30 is hooked on the hook-shaped engagement rod 21, and the ingress prevention chain 3 is attached to the vehicle stop column. 1 can be connected. On the other hand, when the connected entry preventing chain 3 is removed from the vehicle stop column 1, the loosely fitted chain ring 30 is once pushed in and released from the hook-shaped engagement rod 21, and then below the engagement rod 21. By pulling out from the gap s, the chain ring 30 can be extracted from the connecting gap 23.

  As described above, in the chain coupling device 2 of the present embodiment, the chain ring 30 of the ingress prevention chain 3 is simply inserted into the chain insertion port 22 and is simply detached from the engagement rod 21 in a predetermined procedure. The chain 3 can be easily attached to and detached from the car stopper column 1 without using a tool. And on the other hand, the coupling | bond part of the chain ring 30 and the engagement rod 21 is located in the inside of the support | pillar 1, and the only open chain insertion port 22 is the extent which inserts one chain ring 30. Since there is only a width dimension, when the chain 3 is connected, the engagement portion between the chain ring 30 and the engagement rod 21 is difficult to visually recognize. Therefore, even if the engagement mechanism between the engagement rod 21 and the chain ring 30 is simple, a third party cannot visually understand the correct attachment / detachment procedure by visually observing the engagement mechanism, and the chain 3 can be simplified. Cannot be removed. In particular, the engagement rod 21 of the present embodiment has a hook shape with the open end 25 facing the inward side of the vehicle stop column 1, except for a proper attachment / detachment procedure such as random operation of a third party or vibration of the chain 3. It is hard to come off because of the factor. Further, the chain coupling device 2 of the present embodiment can be manufactured only by fixing the engagement rods 21 and 21 to the housing frame 20 made of a metal tubular body and penetrating the column main body 10. Is easy and the attachment work is extremely easy, and it can be attached to any type regardless of the size and structure of the stop post. Further, not only the structure of the chain coupling device 2 is simplified, but also the ingress prevention chain 3 does not require an engaging member and has a simple configuration, so that both the chain 3 and the chain coupling device 2 are manufactured at low cost. it can. In particular, in the present embodiment, the housing frame 20 is formed of a tubular body that penetrates the vehicle stop column 1 substantially horizontally. For this reason, even if it is the structure which connects the chain 3 to the both sides of the vehicle stop support | pillar 1, it is only necessary to provide the single accommodating frame 20, and while being able to reduce a number of parts, the attachment work to the support | pillar main body 10 is also one time. There is an advantage that it is completed.

  4 and 5 show a vehicle stop strut 1a according to the second embodiment. Such a car stopper post 1a is capable of connecting the chain 3 only to one side thereof, and the chain connecting device 2a includes an accommodation frame 20a made of a metal tubular body, and the accommodation frame 20a, as in the first embodiment. And an engagement rod 21a fixed to the frame. Here, as shown in FIG. 4, the housing frame 20a is shorter than the diameter of the column main body 10a, and is inserted into the column through the mounting hole 12a formed on only one side of the column main body 10a, and penetrates the column main body 10a. Without welding, welding is performed in a state in which the opening is made to coincide with the mounting hole 12a. Further, as shown in FIG. 5, the storage frame 20a has a square cross-sectional shape, and one end portion opened on the outer side surface of the vehicle stopper column 1 serves as a chain insertion port 22a, and a rectangular parallelepiped of the storage frame 20a. The pipe-shaped region is defined as a connecting gap 23a. The engagement rod 21a has a base end 24a fixed at a position in the vicinity of the chain insertion port 22a on the bottom of the housing frame 20a, and projects an open end 25a upward and inward. Here, in the present embodiment, the engagement rod 21a is not curved, but is fixed to the receiving frame 20a in a state where the entire engagement rod 21a is tilted inward of the column 1a. With the open end 25a facing inward, the loosely fitted chain ring 30 can be securely latched. In such an embodiment, the chain ring 30 of the ingress prevention chain 3 is inserted from the chain insertion port 22a, and the tip of the chain ring 30 is pushed from the gap above the open end 25a of the engagement rod 21a, and from the open end 25a. The chain ring 30 can be hooked on the engagement rod 21a by loosely fitting the engagement rod 21a, and the loosely-fitted chain ring 30 can be removed by performing an operation opposite to the case of hooking. .

  FIG. 6 shows another embodiment of a vehicle stopper strut 1b provided with the chain connecting device 2a of the second embodiment. In this embodiment, the column main body 10b made of a metal cylinder has a gate shape, and both ends thereof are fixed in the ground. The chain connecting devices 2a are respectively disposed on both arms exposed to the ground, and the chain 3 for preventing entry is hung on each chain connecting device 2a. As described above, the chain coupling device of the present invention is not limited to the vehicle stop column formed in a single rod shape, but can be applied to a gate-type vehicle stop column.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention. For example, although the housing frame 20 is welded to the column main body 10, it can be detachably screwed or can be integrally cast. In addition, the chain insertion port 22 of the embodiment has the same shape as the cross section of the communication gap 23. However, the chain insertion port 22 is loosely fitted to the engagement rod 21 by narrowing the chain insertion port 22 or providing a protrusion. The ring 30 can be made more difficult to come off.

It is a vertical side view of the vehicle stop support | pillar 1 provided with the chain coupling device 2 which concerns on a 1st Example. It is a half sectional view of the front side of the vehicle stop strut 1 provided with the chain coupling device 2 according to the first embodiment. It is a vertical side view which shows the use condition of the vehicle stop support | pillar 1 at the time of the chain 3 for approach prevention. It is a vertical side view of the vehicle stop support | pillar 1a provided with the chain connection apparatus 2a which concerns on a 2nd Example. It is a front view of the vehicle stop pillar 1a provided with the chain coupling device 2a which concerns on a 2nd Example. It is a front view which shows the vehicle stop pillar 1b of the other form provided with the chain coupling device 2a which concerns on a 2nd Example. It is a side view of the car stop pillar 1c provided with chain connection device 2c of the conventional composition. It is a vertical side view of the vehicle stop support | pillar 1d provided with the chain connection apparatus 2d of the conventional structure.

Explanation of symbols

1, 1a to 1d Car stop column 2, 2a, 2c, 2d Chain connecting device 3, 3c Chain for preventing entry 10, 10a to 10d Column body 11, 11d Cap 12, 12a Mounting hole 20, 20a Housing frame 21, 21a Engagement杆 22, 22a, 22b Chain insertion port 23, 23a Connection gap 24, 24a Base end 25, 25a Open end 26 Through hole 30 Chain ring 31 Engagement member 40 Mounting chamber 41 Engagement rod 42 Spring

Claims (4)

A chain connection device for a vehicle stop column for connecting a chain for preventing entry to the vehicle stop column,
An accommodation frame comprising a chain insertion port that is fixed to the inside of the vehicle stop column and opens to the outer surface of the vehicle stop column, and a connecting gap into which the chain ring of the chain for preventing entry is inserted from the chain insertion port,
A chain connection device for a vehicle stop strut, comprising: an engagement rod having a base end fixed to the housing frame, an open end protruding into the connection gap, and a chain ring loosely fitted from the open end.   2. The chain connection device for a vehicle stop strut according to claim 1, wherein the chain insertion port has a width dimension such that only a single chain ring can be inserted.   The chain connection device for a vehicle stop strut according to claim 1 or 2, wherein the engagement rod has a hook shape with an open end directed inward of the vehicle stop strut.   4. The chain connection device for a vehicle stop strut according to claim 1, wherein the housing frame is a tubular body that penetrates the vehicle stop strut substantially horizontally.

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