KR20140107884A - Cross bar connecting device - Google Patents

Cross bar connecting device Download PDF

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Publication number
KR20140107884A
KR20140107884A KR1020130022042A KR20130022042A KR20140107884A KR 20140107884 A KR20140107884 A KR 20140107884A KR 1020130022042 A KR1020130022042 A KR 1020130022042A KR 20130022042 A KR20130022042 A KR 20130022042A KR 20140107884 A KR20140107884 A KR 20140107884A
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KR
South Korea
Prior art keywords
fastening
hole
fastener
main body
conical
Prior art date
Application number
KR1020130022042A
Other languages
Korean (ko)
Inventor
이창환
Original Assignee
주식회사 플러스디
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 플러스디 filed Critical 주식회사 플러스디
Priority to KR1020130022042A priority Critical patent/KR20140107884A/en
Publication of KR20140107884A publication Critical patent/KR20140107884A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
    • F16B1/02—Means for securing elements of mechanisms after operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/045—Devices for fastening nuts to surfaces, e.g. sheets, plates specially adapted for fastening in channels, e.g. sliding bolts, channel nuts
    • F16B37/047—Barrel nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
    • F16B7/187—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements with sliding nuts or other additional connecting members for joining profiles provided with grooves or channels

Abstract

The present invention relates to a crossbar connecting mechanism. The crossbar connecting mechanism includes a body made of a plastic material, a fastener having a depression and a conical adjusting groove inserted and assembled so as to be slidable through an insertion opening formed at a front end of the body, A spring that is inserted through the upper surface of the main body and is resiliently supported at the end of the fastening hole so as to push the fastening hole toward the insertion port and a through hole formed to penetrate the upper and lower surfaces of the main body, A guide cylindrical body formed with a slide guide hole to be assembled in a state of penetrating, and a cylindrical screw hole formed in the guide cylindrical body, wherein when the guide hole is inserted into the conical adjustment groove formed in the fastener, the fastener is pushed in a direction to compress the spring And an adjusting bolt having a conical adjusting end is provided In the cross bar connecting mechanism,
A fastening female thread is formed at an end of a fastening hole to which the spring is elastically supported,
And a fastening bolt inserted through a hole formed at a rear end of the main body and screwed into a fastening female screw formed at an end of the fastening hole.

Figure P1020130022042

Description

[0001] Crossbar connecting device [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crossbar connecting mechanism, and more particularly to a crossbar connecting mechanism for connecting a crossbar to a frame such as an assembled booth, partition, table or the like.

In general, prefabricated structures such as prefabricated booths, partitions, tables, etc. are connected to the frame and crossbar in a prefabricated structure.

4, in order to connect the crossbar 200 to the frame 100 having the cutout grooves 110 formed on one side or both sides thereof, the connecting mechanism 300 is previously attached to both ends of the crossbar 200, And then the crossbar 200 is connected to the frame 100 by using the connecting mechanism 300 assembled at both ends of the crossbar 200.

However, it is pointed out that the connection mechanism 300 assembled at both ends of the crossbar 200 does not operate properly or some parts are lost frequently.

First, the structure of the conventional connection mechanism 300 will be described.

The connection mechanism 300 includes a body 310 made of a plastic material, a fastener 400 slidably inserted into the insertion hole 320 formed at one side of the body 310, A guide cylinder 500 inserted and inserted into the through hole 330 formed to penetrate the upper surface of the main body 310 and the insertion hole 320 of the main body 310 and supported by the inner support surface 340, And a spring 600 for holding the elastic member 400 in a resilient manner.

A resilient actuating part 360 is formed on the side of the insertion port 320 of the main body 310 so that the engaging protrusion 350 is inserted into the insertion port 320, The neck portion 410 formed at the tip of the fastener 400 to be inserted and assembled is formed with a fastening piece 420 detachably fastened to the cutout groove 110 of the frame 100. In addition, A latching fault 430 is formed to latch the latching protrusion 350 of the elastic actuating part 360 formed on the main body 310.

A concave recess 440 having both ends inclined and a conical control groove 450 formed in a conical shape are formed on the upper surface of the fastener 400.

The guide cylindrical body 500 is removably assembled to a through hole 330 formed to penetrate the upper surface of the main body 310. The guide cylindrical body 500 is provided with a fastening hole 400 And a female screw hole 520 into which the slide guide hole 510 and the adjustment bolt 530 are screwed is formed.

The adjusting bolt 530 is provided with a wrench groove 540 into which a hexagonal wrench 700 is inserted and an adjusting groove 450 formed in the conical adjusting groove 450 formed in the concave portion 440 of the fastening hole 400, A conical adjustment end portion 550 for adjusting the protruding length of the engagement piece 420 formed at the tip end portion 410 of the fastener 400 is formed.

The connecting mechanism 300 of the related art having the above-described structure is configured such that the fastening piece 420 formed on the neck 410 at the front end of the fastening hole 400, It can be adjusted so that it protrudes only to the protruding length as designed. 8, when the adjustment bolt 530 is rotated in the screw releasing direction and the conical adjustment end 550 is engaged with one end of the conical adjustment groove 450 of the fastener 40 as shown in FIG. 8, Even if the latching jaw 350 reaches the position where it is caught by the latching fault layer 430 of the fastening hole 40 and continues to rotate the adjustment bolt 530 in the screw releasing direction, The engaging jaw 350 may be engaged with the engaging fault layer 430 but the engaging jaw 350 is not caught by the engaging fault layer 430 and the engaging fault layer 430 of the fastener 450, The conical adjustment end portion 550 formed at the end portion of the adjustment bolt 530 is moved out of the conical adjustment groove 330. As a result, When the engaging fault layer 430 of the fastener 400 is not caught by the retaining jaws 350 of the elastic actuating part 360, The elasticity of the conical adjustment groove 450 completely deviates from the conical adjustment end 550 of the adjustment bolt 530. At this time, the operation of rotating the adjustment bolt 530 in the screw tightening direction causes the fastener 400 itself It can not be moved toward the spring 600. This is because the conical adjustment end 550 of the adjustment bolt 530 is located on the upper surface of the depression 440.

Therefore, the operator completely screws the adjustment bolt 530 itself in the female threaded portion 520 of the guide cylinder 500, then pulls the connection mechanism 300 out of the crossbar 200 and again screws the adjustment bolt 530 Since the crossbar 200 is connected to the frame 100 by the method of assembling the connecting mechanism 300 again to the crossbar 200, the connecting operation of the crossbar 200 is inconvenient and takes a long time. The connecting bolt 530, the fastener 400, and the spring 600 are often lost when the connecting mechanism 300 inserted in the cross bar 200 is pulled out.

The above-described problems of the conventional art are that since the elastic actuating part 360 is not molded as designed according to the variation of the shrinkage coefficient that occurs when the main body 310 of the connection mechanism 300 is injection molded after plastic molding Or the elastic force of the elastic operation part 360 is weakened by repeatedly using the connection mechanism 300 repeatedly.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems in the prior art, and it is expected that productivity can be improved by molding the connecting mechanism body with a plastic material, regardless of shrinkage coefficient at the time of demoulding, The present invention was made to provide a connection mechanism that can constantly maintain and adjust the protruding length of a fastener inserted into a main body of a connection mechanism, even if repeatedly used several times.

The present invention, as a means for realizing the above object,

A coupling member having a depression and a conical adjustment groove formed therein to be slidably inserted through an insertion port formed at a front end of the main body and inserted through the insertion port of the main body, A spring which is resiliently supported on an end of the fastener so that the fastener can be pushed out, and a slide guide hole which is removably inserted into the through hole formed to pass through the upper and lower surfaces of the main body and assembled in a state in which the fastener is slidably passed And a conical adjustment end portion formed in the guide cylindrical body and formed with a conical adjustment end portion which is screwed to the female screw hole formed in the guide cylindrical portion and pushes the fastener in a direction to compress the spring when inserted into the conical adjustment groove formed in the fastener, The crossbar connecting mechanism comprising:

A fastening female thread is formed at an end of a fastening hole to which the spring is elastically supported,

And a fastening bolt inserted through a hole formed at a rear end of the main body and screwed into a fastening female screw formed at an end of the fastening hole.

In addition, a seating groove is formed in the periphery of the hole formed at the rear end of the main body, in which the head portion of the fastening bolt is seated.

According to the present invention, when the fastening bolt inserted through the hole formed at the rear end of the main body of the connecting mechanism is screwed to the fastening female thread formed at the end of the fastening hole, the means for adjusting the depth of screwing the fastening bolt into the fastening female screw It is possible to adjust the protruding length of the fastening protrusion protruding from the front end of the main body and also to prevent the conical adjusting recess formed in the depression of the fastening member inserted into the insertion hole of the main body from deviating from the conical adjusting end of the adjusting bolt, When the crossbar is connected to the crossbar, the fastener formed in the fastener can be inserted into the cutout groove of the frame, and the fastener can be correctly fastened to the cutout groove. Further, By making it possible to shorten the molding time when injection molding with material There is an advantage that productivity of the main body is improved.

1 is an exploded perspective view of a connecting mechanism for explaining the present invention;
Fig. 2 is a cross-sectional view of an assembled state in which the adjustment bolts of the connecting mechanism of the present invention are screw-
Fig. 3 is an assembled cross-sectional view of the connecting mechanism of the present invention,
Fig. 4 is a cross-sectional view showing the state of use of the crossbar connecting mechanism for explaining the present invention.
Figure 5 is a perspective view of a prior art assembled assembly
Figure 6 is a cross-sectional view
7 is a sectional view taken along the line AA in Fig. 6
Figs. 8 and 9 are cross-sectional views

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A crossbar connecting mechanism according to the present invention will now be described in detail with reference to the accompanying drawings.

1 shows a crossbar connecting mechanism. The crossbar connecting mechanism 1 includes a main body 2 injection molded with a plastic material, a fastener 3 assembled to be slidable into the main body 2, A guide cylinder 4 which is removably assembled to a through hole 24 formed so as to penetrate the main body 2 upwardly and downwardly and a guide cylinder 4 inserted into the insertion port 23 of the main body 2, And a spring 5 for elastically supporting the spring 3.

An insertion port 23 is formed between the line 21 and the rear ends 21 and 22 of the main body 2 so that the fastening opening 3 can be slidably inserted. Through holes 24 passing through the upper and lower portions are formed.

A fastener 3 inserted into the insertion port 23 of the main body 2 can be inserted and removed so as to be slidable from the end 21 side. A hole 25 through which the fastening bolt 6 is removably inserted and a seating groove 26 through which the head portion 61 of the fastening bolt 6 is seated are formed.

Since the outer diameter of the fastener 3 is smaller than the inner diameter of the insertion opening 23 of the main body 2 and the inner diameter of the slide guide hole 41 of the guide cylindrical body 4, And is inserted into the guide hole 41 so as to be slidably movable.

The concave portion 31 is formed on the upper surface of the fastener 3 so as to have a reduced outer diameter. Both ends of the concave portion 31 are formed as inclined surfaces inclined upward, And a conical adjustment groove 32 formed in a conical shape toward the inside of the fastening hole 3 is formed at an intermediate portion thereof.

Further, at the tip of the fastener 3, a fastening piece 33 having a narrow left and right width and a wide upper and lower width is formed.

The guide cylindrical body 4 is formed in such a structure that the outer diameter of the guide cylindrical body 4 is smaller than the inner diameter of the through hole 24 so that the guide cylindrical body 4 can be inserted into and removed from the through hole 24 formed in the main body 2, A slide guide hole 41 is formed in the guide cylindrical body 4 so that the fastening hole 3 is slidably inserted into the slide guide hole 41. A female screw hole 42 are formed.

The adjustment bolt 45 having the wrench groove 44 is screwed into the female screw hole 42. The lower end of the adjustment bolt 45 has a conical shape formed in the depression 31 of the fastener 3, And a conical adjustment end portion 46 which is assembled to be in close contact with the adjustment groove 32 is protruded.

The present invention is characterized in that a conical adjusting end portion (not shown) formed at the lower end of an adjusting bolt 45 which is screwed to the female screw hole 42 of the guide cylindrical body 4 inserted into the through hole 24 of the main body 2 46 can be adjusted so as not to depart from the conical adjusting groove 32 formed in the depressed portion 31 of the coupling 3.

A fastening female thread 35 is formed at an end 34 of a fastener 3 inserted into the insertion port 23 of the main body 2 and resiliently supported by the spring 5, And a fastening bolt 6 screwed to the fastening female screw 35 is inserted through the hole 25 formed in the rear end 22 of the fastening bolt.

When the fastening bolts 6 are inserted into the holes 25 and screwed into the fastening female threads 35 formed at the end 34 of the fastening holes 3, 3, when the conical adjustment end 46 of the lower end of the adjustment bolt 45 screwed into the fastening bolt 42 is inserted into the conical adjustment groove 32 formed in the fastening hole 3, The head portion 61 of the main body 2 is spaced apart from the seating groove 26 formed at the rear end 22 of the main body 2 by a predetermined distance and the adjusting bolt 45 is rotated in the screw releasing direction, When the conical adjusting end 46 of the lower end of the adjusting bolt 45 is adjusted to be completely loosened in the conical adjusting groove 32 of the fastening hole 3, The adjustment bolt 45 is tightly fixed to the seating groove 26 while the fastening hole 3 is formed in the center of the conical adjustment groove 32, The central part a of the conical adjusting end 46 is not in contact with the center of the conical adjusting groove 32 when the adjusting bolt 45 is rotated in the screw tightening direction, And is located inside the one end.

The operation of the present invention thus configured will be described.

The crossbar connecting mechanism 1 of the present invention is configured such that the main body 2 is inserted into one end or both ends of the cross bar 200 as shown in Fig. The circular step 43 protruding from the female screw hole 42 of the inserted guide cylindrical body 4 is assembled in such a state that the adjustment bolt 44 is exposed to the outside through the exposure hole 210. In this case, The fastening bolt 6 inserted through the hole 25 formed in the rear end 22 of the main body 2 before the crossbar connecting mechanism 1 is inserted into the cross bar 200 is inserted into the end of the fastening hole 3 The threaded portion of the fastening bolt 6 is screwed into the fastening female thread 34 when the threaded fastening bolt 6 is screwed into the fastening female thread 35 formed on the fastening bolt 34. 2, when the adjusting bolt 45 is rotated in the screw releasing direction so that the conical adjusting end 46 of the adjusting bolt 45 is completely relaxed in the conical adjusting groove 32, The fastener 3 pushed by the elastic force of the fastening bolt 5 is pushed only by the distance that the head part 61 of the fastening bolt 6 is supported by the fastening groove 61. At this time, The one end portion of the conical adjustment groove 32 formed in the depression 31 is adjusted so as not to deviate from the central portion (a) of the conical adjustment end 46 described above.

The fastening member 3 having the fastening bolts 6 screwed thereto is in a state in which the fastening pieces 33 formed on the fastening bolts 6 are protruded so as to be spaced apart from the front end 21 of the main body 2 by a predetermined distance, The fastening piece 33 protruding from the front end of the cross bar 200 protrudes from the end of the cross bar 200 by a predetermined distance. At this time, the cross bar 200, in which the cross bar connecting mechanism 1 is inserted, When the cross bar 200 itself is rotated 90 ° before or after the cross bar 200 is connected to the frame 100 so that the wide width of the fastener 33 is adjusted so as to be positioned above or below the fastener, The width of the fastening piece 33 is perpendicular to the cutout groove 110 of the frame 100 so that the fastening piece 33 can be inserted into the cutout groove 110 of the frame 100, After inserting the cross bar 200 into the incision groove 110 of the frame 100, When a rotate angle of 90 ° is a state where the large width portion of the fastening piece (33) engaging in the recess (110).

When the hexagonal wrench 700 is inserted into the wrench groove 44 of the adjustment bolt 45 exposed through the exposure hole 210 of the cross bar 200 and the adjustment bolt 45 is screwed, 46 are inserted into the conical adjustment groove 32 formed in the fastening hole 3 to push the fastening hole 3 in the direction of compressing the spring 5, The crosspiece 200 is connected to the frame 100 in a fixed state by being pressed on both sides of the back side of the cutout groove 110 while moving the piece 33 toward the front end 21 of the body 2. [

As described above, the crossbar connecting mechanism 1 of the present invention is configured such that the fastening female thread 35 formed at the end 34 of the fastener 3 inserted into the insertion opening 23 of the main body 2 is fastened to the main body 2 The operating distance of the fastener 3 can be precisely adjusted by screwing the fastening bolts 6 inserted through the holes 25 formed in the rear end 22 of the crossbar connecting mechanism 1, The operator can continuously maintain the operating distance set by the tightening bolts 6 even if the knob is repeatedly used a plurality of times. Thus, the operator can easily and surely mount the crossbar 200 on the frame 100 by a simple operation of screwing and loosening the adjusting bolt 44. [ So that it can be connected and disconnected.

1: Crossbar connecting mechanism 2:
21: leading edge 22: trailing edge
23: insertion hole 24: through hole
25: hole 26: seat groove
3: fastener 31: depression
32: conical adjustment groove 33: fastening piece
34: end 35: fastening female thread
4: guide cylinder 41: slide guide ball
42: female thread ball 43: circular step
44: Wrench groove 45: Adjusting bolt
46: conical adjustment end 5: spring
6: fastening bolt 61: head portion
100: frame 110: incision groove
200: Crossbar 210: Exposed ball

Claims (2)

A coupling member having a depression and a conical adjustment groove formed therein to be slidably inserted through an insertion port formed at a front end of the main body and inserted through the insertion port of the main body, A spring which is resiliently supported on an end of the fastener so that the fastener can be pushed out, and a slide guide hole which is removably inserted into the through hole formed to pass through the upper and lower surfaces of the main body and assembled in a state in which the fastener is slidably passed And a conical adjustment end portion formed in the guide cylindrical body and formed with a conical adjustment end portion which is screwed to the female screw hole formed in the guide cylindrical portion and pushes the fastener in a direction to compress the spring when inserted into the conical adjustment groove formed in the fastener, The crossbar connecting mechanism comprising:
A fastening female thread is formed at an end of a fastening hole to which the spring is elastically supported,
Further comprising a fastening bolt inserted through a hole formed at a rear end of the main body and screwed into a fastening female thread formed at an end of the fastening hole.
The method according to claim 1,
Wherein a seating groove is formed in a periphery of a hole formed at a rear end of the main body, wherein a head portion of the fastening bolt is seated.
KR1020130022042A 2013-02-28 2013-02-28 Cross bar connecting device KR20140107884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130022042A KR20140107884A (en) 2013-02-28 2013-02-28 Cross bar connecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130022042A KR20140107884A (en) 2013-02-28 2013-02-28 Cross bar connecting device

Publications (1)

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KR20140107884A true KR20140107884A (en) 2014-09-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130022042A KR20140107884A (en) 2013-02-28 2013-02-28 Cross bar connecting device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109157030A (en) * 2018-10-20 2019-01-08 杭州顾家定制家居有限公司 A kind of connector and the cabinet using connector
TWI695123B (en) * 2017-12-29 2020-06-01 伍鐌科技股份有限公司 Fastening structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI695123B (en) * 2017-12-29 2020-06-01 伍鐌科技股份有限公司 Fastening structure
CN109157030A (en) * 2018-10-20 2019-01-08 杭州顾家定制家居有限公司 A kind of connector and the cabinet using connector

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