JPH0663914U - Long member connection structure - Google Patents

Abstract

(57) [Summary] [Purpose] To achieve the connection between long members with a simple configuration and a simple operation that can be visually confirmed, and also to prevent loosening of the connection due to vibration and the like. [Structure] A recess 1a is formed in one of the pair of long members 1 and 2.
A small diameter protrusion 2a is formed on the other side, and a through hole 1e and a tapered through hole 2b are formed to face each other with the small diameter protrusion 2a inserted in the recess 1a, and the tapered rod member 3 is inserted into these. The long bolts 1 and 2 are connected by screwing the screw bolt 4 rotatably supported by the support member 4a into the screw hole 3a formed on the smaller diameter side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a long member connecting structure, and more particularly to a long member connecting structure suitable for connecting long members having a rectangular cross section.

[0002]

[Prior art]

 Conventionally, for example, when connecting long members of a predetermined length to each other to increase the length as a whole, the abutting portions of both members are surrounded with the two long members abutting each other. A connecting structure is employed in which a plate member is provided and the plate member is integrally connected to both members by a bolt or the like.

Further, a corner metal fixture having the same structure as that used in the container is integrally provided at the end portions of both the long members, and the holes of the corner metal fittings of the both members are used to connect the containers with each other. A connecting structure has also been proposed in which both long members are integrally connected by using a connecting fitting having the same structure as the case of connecting.

[0004]

[Problems to be solved by the device]

 When the former connection structure is adopted, a plurality of bolts (at least 4, generally 4n, where n is a positive integer) are used to firmly integrate both long members. Since it is necessary, it not only takes time and effort to tighten the bolts, but also loosens the bolts in an environment subject to vibration (for example, during transportation), so that the long members cannot be connected to each other. There is a risk of becoming incomplete. Furthermore, in order to tighten bolts, etc., it is necessary to maintain the accurate relative positions of the long members and the plate members for a considerable period of time, which also greatly complicates the connecting work. become.

In the case of adopting the latter connection structure described above, welding work or the like is required to integrally provide the corner fittings to both the long members, and moreover, the relative position and direction of the corner fittings with respect to the long member. Since it is necessary to set accurately, there is a disadvantage that the work for making the structure capable of connecting the long members becomes extremely complicated. Further, even after the long members have been configured to be connectable as described above, it is necessary to perform the work of positioning the connecting fittings and connecting the connecting fittings to the corner fittings. Since these operations require a certain degree of skill because they involve steps that cannot be visually confirmed, there is also the inconvenience that the place where the connection work can be done is considerably restricted. Further, since the connecting metal fittings are generally expensive, there is a disadvantage that they can be applied only in limited applications.

[0006]

[The purpose of the device]

 The present invention has been made in view of the above problems, allows visual confirmation throughout the entire work process, and has a considerably simple structure, and therefore the operation as a whole is simple, and vibration and the like are also possible. It is an object of the present invention to provide a novel long member connecting structure that can maintain a perfect connected state regardless of the above.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the long member connecting structure according to claim 1 has a pair of long members to be connected to each other, wherein one end of one long member is attached to the end of the other long member. A recess is formed at the end of the recess to accommodate the small-diameter protrusion, and an opening is formed at a predetermined position on the side wall of the recess facing each other. Taper-like rod members that have tapered through holes facing each other and have screw holes that open on the small-diameter end face are inserted into the tapered through holes and both openings, and at a predetermined position on the outer surface of the side wall. The tip end of a screw bolt rotatably penetrating the abutting support member is screwed into the screw hole of the tapered rod member.

[0008]

[Action]

 In the long member connecting structure according to claim 1, among the pair of long members to be connected to each other, the small-diameter protruding portion of the other long member is accommodated in the recess of the one long member, In this state, insert the tapered rod member into both openings formed in the side wall of the recess and the tapered through hole formed in the small diameter protrusion, and then insert the tip of the screw bolt into the screw hole of the tapered rod member. The connection of the two elongated members can be achieved by screwing and bringing the supporting member into contact with the outer surface of the side wall at a predetermined position.

That is, the connection of the long members can be achieved by simple operations such as inserting the small-diameter protruding portion into the recess, inserting the tapered rod member, and screwing in the screw bolt. Further, since the positioning and the like can be visually confirmed during the series of operations, even an unskilled worker can surely achieve the connection between the long members. Further, the tapered rod member can be tightly engaged with the tapered through hole by screwing in the screw bolt, so that the long members can be connected to each other even when vibration is applied during transportation. It can be surely prevented from becoming incomplete.

[0010]

【Example】

 Embodiments will be described below in detail with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing an embodiment of a long member connecting structure of the present invention, and FIG. 2 is a central longitudinal sectional view showing a connected state, in which one long member 1 has a recess 1a opening at an end face thereof. The other long member 2 has a small-diameter protruding portion 2a protruding from the end face.

The one elongated member 1 has a rectangular cross-sectional shape, and at least one end of the elongated member 1 is formed to be hollow, and a rectangular opening 1c is formed in the center of the end face that covers the one end face. The place 1a is formed. The through holes 1e are formed at predetermined positions of the side walls 1d of the hollow portion 1b that face each other so as to face each other. The other long member 2 has the same cross-sectional shape as the one long member 1, and also has a tapered small-diameter protruding portion 2a having a rectangular cross-section protruding from one end surface. Further, it has a tapered through hole 2b that directly faces the above-mentioned pair of through holes 1e in a state where the small-diameter protruding portion 2a is completely inserted into the recess 1a.

Furthermore, while having the tapered rod member 3 which is inserted into the tapered through hole 2b, the length of the rod member 3 is set so that both through holes 1e are set in the state of being engaged with the through hole 2b. The length is also set to allow penetration. Further, a threaded hole 3a is formed in the central portion of the rod member 3 on the small-diameter side end surface side. Furthermore, it has a support member 4a which supports only the screw bolt 4 and the screw bolt 4 screwed into the screw hole 3a so as to be rotatable only. The support member 4a has a main body portion 4b that supports the screw bolt 4 only in a rotatable manner, and a supporting leg portion 4c that extends substantially parallel to the screw bolt 4 at the peripheral edge portion of the main body portion 4b. However, the supporting leg portion 4c may be simply abuttable at a predetermined position near the through hole 1e on the outer surface of the side wall 1d, but is preferably integrated by welding or the like.

In the figure, 5 is a seal member. The connection between the long members by the long member connecting structure having the above configuration will be described in detail. The small-diameter protrusion 2a of the other long member 2 is inserted into the recess 1a of the one long member 1 so that the through hole 2b faces the through hole 1e. By inserting the tapered rod member 3, the rod member 3 is engaged with the tapered through hole 3 and the other through hole 1e is also penetrated. Then, the rod member 3 is pulled in by screwing the screw bolt 4 into the screw hole 3a to achieve complete engagement between the rod member 3 and the through hole 2b, and to prevent the rod member 3 from dropping due to vibration or the like. Surely block.

Further, during the above-described series of operations, the state of the counterpart member such as insertion and screwing can be easily visually confirmed, so that even an inexperienced worker can reliably confirm the long member. The connection between them can be achieved. The long member connecting structure of the present invention can be applied to all applications in which the length needs to be changed, but since there is almost no strength reduction due to the interposition of the connecting structure, it is compliant with ISO standards and the like. It can also be applied to a container having a specified strength, and by applying it to a container, for example, a height-adjustable container can be obtained. In this case, if the screw bolt is screwed in from the inside of the container, it is possible to reliably prevent the rod member from being pulled out from the outside, and to reliably remove the load.

It should be noted that the present invention is not limited to the above-described embodiment. For example, although positioning of the long members becomes complicated, it is possible to connect the long members having a circular cross-sectional shape. Besides, it is possible to make various design changes within the scope of not changing the gist of the present invention.

[0016]

[Effect of device]

 As described above, the invention of claim 1 can achieve the connection of the long members by a simple operation of only inserting the small diameter protruding portion into the recess, inserting the tapered rod member and screwing in the screw bolt. Since the positioning etc. can be visually confirmed during the work, even an unskilled worker can reliably connect both long members, and the taper bar member is tapered by screwing the screw bolt. The unique practical effect of securely engaging the long through-holes and preventing incomplete connection between the long members even when vibration is applied during transportation etc. Play.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a long member connecting structure of the present invention.

FIG. 2 is a central longitudinal cross-sectional view showing the same connection state.

[Explanation of symbols]

 1, 2 Long member 1a Recess 1d Side wall 1e Through hole 2a Small diameter protrusion 2b Tapered through hole 3 Tapered rod member 3a Screw hole 4 Screw bolt 4a Support member

Claims (1)

[Scope of utility model registration request] 1. A pair of elongated members (1) (2) to be connected to each other, wherein one end of one elongated member (1) is
Small-diameter protrusion (2) provided at the end of the other long member (2)
a) is formed with a recess (1a) capable of accommodating the recess (1a), and openings (1e) are formed at predetermined positions of the side walls (1d) of the recess (1a) facing each other. 2a)
Has a tapered through hole (2b) facing both openings (1e) at a predetermined position, and the tapered rod member (3) having a screw hole (3a) opening at the small-diameter end face is tapered through. The tip of the screw bolt (4) is inserted through the hole (2b) and both openings (1e) and is rotatably pierced through the support member (4a) that abuts at a predetermined position on the outer surface of the side wall (1d). Taper bar member (3) screw hole (3
A long member connecting structure characterized by being screwed into a).