JP4156908B2

JP4156908B2 - Joint device

Info

Publication number: JP4156908B2
Application number: JP2002327489A
Authority: JP
Inventors: 一久秋葉
Original assignee: Okamura Corp
Current assignee: Okamura Corp
Priority date: 2002-11-11
Filing date: 2002-11-11
Publication date: 2008-09-24
Anticipated expiration: 2022-11-11
Also published as: JP2004162763A

Description

【０００１】
【発明の属する技術分野】
本発明は、支柱と横杆とを連結するためのジョイント装置に関する。
【０００２】
【従来の技術】
従来、上述のようなジョイント装置においては、支柱にその長手方向に沿って係止溝を設けるとともに、この係止溝に嵌合された連結材に、横杆の端部をボルトにより締結することにより、係止溝の開口に設けられた係止片を挟持して、支柱と横杆とを互いに連結するようになっている（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特開２００２−１３８６９３号公報
【０００４】
【発明が解決しようとする課題】
しかし、上述の特許文献１に記載されたような従来のジョイント装置は、横杆の端部が連結材に連結される構造であるため、横杆の形状が制限されるとともに、支柱と横杆とを強固に連結するには、少なくと２本以上のボルトを使用して、横杆と連結材とを締結する必用があり、取り付け、取り外し作業に多くの時間が掛かるという問題がある。
【０００５】
本発明は、従来の技術が有する上記のような問題点に鑑み、支柱と横杆とを容易に取り付け、取り外し作業を行うことができ、かつ支柱と横杆とを強固に連結することができるようにしたジョイント装置を提供することを目的としている。
【０００６】
【課題を解決するための手段】
本発明によると、上記課題は、次のようにして解決される。
（１）支柱と横杆とを連結するジョイント装置において、前記支柱または横杆の一方のものの長手方向に沿って設けられ、かつ外方を向く開口の両側に開口幅を狭めるように互いに突出する係止片を設けた係止溝に摺動可能に嵌合されるとともに、長手方向を向く一端部に前記一方のものの長手方向に対して傾斜した係合突部を有する第１ジョイント部材と、前記支柱または横杆の他方のものの端部に固定されるとともに、前記係合突部と同一方向へ傾斜し、かつ前記係合突部と係合可能な傾斜面を有する第２ジョイント部材とを備え、前記傾斜面の傾斜方向と同一方向を向くボルトをもって、前記第１ジョイント部材と第２ジョイント部材との他端部を互いに締結することにより、前記第１ジョイント部材と第２ジョイント部材との間に、前記係止片を挟持する。
【０００７】
（２）上記(１)項において、支柱または横杆の一方のものに設けられた係止片を、遊端側の板厚が漸増するように傾斜させるとともに、前記一方のものに設けられた係止溝に摺動可能に嵌合される第１ジョイント部材における基部の両側に、前記係止片に係合し、かつ前記係止片の傾斜に対応するように傾斜する係合片を設ける。
【０００８】
（３）上記(１)または(２)項において、第２ジョイント部材に、第１ジョイント部材の係合突部が嵌合する凹部を設ける。
【０００９】
（４）上記(１)〜(３)のいずれかにおいて、第１ジョイント部材における係合突部と基部との間にリブを設ける。
【００１０】
【発明の実施の形態】
以下、本発明の一実施形態を、図面に基づいて説明する。
図１は、本発明に係わる一実施形態を適用したワークステーション等に使用される支持ユニット(１)の斜視図、図２は、要部の正面図、図３は、要部の平面図、図４は、図３におけるIＶ−IＶ線に沿う縦断面図、図５は、ボルトを締め付ける前の要部の平面図、図６は、図５におけるＶI−ＶI線に沿う縦断面図、図７〜図１０は、第１ジョイント部材(７)の詳細図、図１１〜図１４は、第２ジョイント部材(９)の詳細図である。
【００１１】
支持ユニット(１)に立設された上下方向を向く左右の支柱(２)(２)の上端部には、本発明に係わるジョイント装置(４)を介して、横杆(３)の端部が連結されている。なお、支持ユニット(１)については、本発明には直接関係しないので、図示するに止めて、詳細な説明は省略する。
【００１２】
支柱(２)は、図３及び図５に示すように、アルミニューム等の金属材料を押出加工等によって溝形断面形状に形成され、かつ表面に長手方向（上下方向）に沿って４本の係止溝(５)が設けられている。なお、各図の係止溝(５)に関し、横杆(３)が連結される側の係止溝(５)のみに符号を付与し、他の係止溝(５)については、符号の付与を省略している。
【００１３】
支柱(２)における係止溝(５)の外方（側方）を向く開口の両側には、互いに向かい合って開口の幅を狭めるように突出する１対の係止片(６)が設けられている。係止片(６)の内側には、図３及び図５に示すように、係止片(６)の遊端側（係止溝(５)の中央寄り）に向けて、係止片(６)の厚さが漸増するように傾斜する傾斜面(6a)が形成されている。
【００１４】
なお、横杆(３)は、支柱(２)と同一材料で形成され、かつ同一断面形状を有しているので、図示及び詳細な説明は省略する。
【００１５】
ジョイント装置(４)は、支柱(２)の係止溝(５)に摺動可能に嵌合される第１ジョイント部材(７)と、図４及び図６に示すように、左右方向を向くボルト(８)をもって、横杆(３)の端部に着脱可能に固定される第２ジョイント部材(９)とを備えており、後述する方向を向くボルト(10)をもって、第１ジョイント部材(７)と第２ジョイント部材(９)とが締結されることにより、第１ジョイント部材(７)と第２ジョイント部材(９)との間に、支柱(２)における係止片(６)を挟持して、支柱(２)と横杆(３)とを連結する。
【００１６】
第１ジョイント部材(７)は、支柱(２)の係止溝(５)に摺動可能に嵌合される上下方向を向く基部(11)と、上下方向を向く基部(11)の上端部（一端部）に設けられ、かつ係止溝(５)の両係止片(６)の間から外方へ突出する下向きの係合突部(13)と、基部(11)の下端部（他端部）に設けられ、ボルト(10)が螺合するねじ孔(12)と、基部(11)の両側部に設けられ、かつ係止溝(５)における係止片(６)の傾斜面(6a)に係合可能な係合片(14)とを有している。
【００１７】
係合突部(13)の内面側（基部(11)に相対する面側）には、支柱(２)の長手方向に対して、先端側（下方側）が拡開するように傾斜する傾斜面(13a)が設けられている。係合突部(13)における傾斜面(13a)のほぼ中央と基部(11)との間には、係合突部(13)の強度を向上させるリブ(15)が設けられている。
【００１８】
ねじ孔(12)は、ボルト(10)が螺合されるとともに、係合突部(13)における傾斜面(13a)の傾き方向と同一方向へ傾いている。
【００１９】
すなわち、第１ジョイント部材(７)と第２ジョイント部材(９)とは、係合突部(13)における傾斜面(13a)の傾き方向と同一方向を向くボルト(10)により締結される。
【００２０】
第１ジョイント部材(７)における係合片(14)の外面側、すなわち支柱(２)における係止片(６)の傾斜面(6a)に対向する面には、主に図３及び図５に示すように、傾斜面(6a)と同一方向へ傾斜する傾斜面(14a)が設けられている。これにより、第１ジョイント部材(７)の基部(11)が支柱(２)の係止溝(５)に嵌合された状態で、図３に示すように、係止片(６)の傾斜面(6a)と、係合片(14)の傾斜面(14a)とが互いに深く係合し合うことにより、第１ジョイント部材(７)を、係止溝(５)の開口から抜け出ることがないように、確実に嵌合させることができる。
【００２１】
第２ジョイント部材(９)は、横杆(３)の端面にボルト(８)をもって着脱可能に固定される基部(16)と、基部(16)の裏面側（第１ジョイント部材(７)の基部(11)と対向する側）に設けられるとともに、第１ジョイント部材(７)のねじ孔(12)に対応する位置においてねじ孔(12)と同一方向へ傾斜して、ボルト(10)が挿入されるボルト挿入孔(17)と、第１ジョイント部材(７)の係合突部(13)に対応する位置に設けられ、かつ係合突部(13)が嵌合する凹部(16a)と、凹部(16a)の下端から上方へ向けて突設され、第１ジョイント部材(７)における係合突部(13)の傾斜面(13a)と同一方向へ傾斜して、傾斜面(13a)と係合可能な傾斜面(18)とを有している。
【００２２】
第１ジョイント部材(７)と第２ジョイント部材(９)とを締結する際、第１ジョイント部材(７)の係合突部(13)を、第２ジョイント部材(９)の凹部(16a)に嵌合させることにより、第１ジョイント部材(７)と第２ジョイント部材(９)との位置合わせを、簡単かつ確実に行うことができる。
【００２３】
第２ジョイント部材(９)における傾斜面(18)の中央には、第１ジョイント部材(７)における係合突部(13)のリブ(15)が嵌合する嵌合溝(18a)が設けられている。
【００２４】
図５及び６に示すように、支柱(２)における係止溝(５)に嵌合された第１ジョイント部材(７)における係合突部(13)を、横杆(３)に固定された第２ジョイント部材(９)の凹部(16a)に嵌合させるとともに、第１ジョイント部材(７)における係合突部(13)の傾斜面(13a)と、第２ジョイント部材(９)における傾斜面(18)とを浅く係合させる。
【００２５】
この状態で、ボルト(10)をボルト挿入孔(17)に挿入して、ねじ孔(12)に螺合して締め付けることにより、図２〜図４に示すように、第１ジョイント部材(７)と第２ジョイント部材(９)の下端部においては、ボルト(10)の直接の締結力により、第１ジョイント部材(７)と第２ジョイント部材(９)とが締結される。
【００２６】
また、第１ジョイント部材(７)と第２ジョイント部材(９)の上端部においては、ボルト(10)の締め込みにより、第１ジョイント部材(７)における係合突部(13)と、第２ジョイント部材(９)における傾斜面(18)との互いの傾斜面同士が係合して、両係合突部(13)と(18)とが互いに深く係合するように、第１ジョイント部材(７)が案内される。
【００２７】
これにより、第１ジョイント部材(７)と第２ジョイント部材(９)とを、一本のボルト(10)をもって締結するだけで、ボルト(10)が締め込まれる下端部と、両係合突部(13)(18)同士が係合する上端部との２ヶ所において、第１ジョイント部材(７)と第２ジョイント部材(９)との間に、支柱(２)の係止片(６)を挟持する力が作用するので、少ない本数のボルト(10)をもって、第１ジョイント部材(７)及び第２ジョイント部材(９)を、支柱(２)に簡単かつ強固に固定することができる。すなわち、支柱(２)と横杆(３)とを簡単かつ強固に連結することができる。
【００２８】
なお、本発明は、上記実施形態に限定されるものではない。例えば、第１ジョイント部材(７)を横杆(３)に設けた係止溝（図示略）に摺動可能に嵌合するとともに、第２ジョイント部材(９)を支柱(２)に端部に着脱可能に固定しても良い。
【００２９】
【発明の効果】
本発明によれば、次のような効果を奏することができる。
（ａ）請求項１記載の発明によると、第１ジョイント部材と第２ジョイント部材とを、ボルトをもって締結するだけで、ボルトにより締め込まれる箇所と、両係合突部同士が係合する箇所とにおいて、第１ジョイント部材と第２ジョイント部材との間に、支柱の係止片を挟持する力が作用するので、少ない本数のボルトをもって、第１ジョイント部材及び第２ジョイント部材を、支柱に簡単かつ強固に固定して、支柱と横杆とを簡単かつ強固に連結することができる。
また、少ない本数のボルトで、支柱と横杆とを連結することができるので、両者を容易に取り付け、取り外し作業を行うことができる。
さらには、第２ジョイント部材が、支柱または横杆に着脱可能に固定されているので、支柱または横杆の形状に制限を与えることがない。
【００３０】
（ｂ）請求項２記載の発明によると、係止溝の係止片と、第１ジョイント部材の係合片との係合が確実になり、支柱と横杆との連結をより強固にすることができる。
【００３１】
（ｃ）請求項３記載の発明によると、第１ジョイント部材の係合突部を、第２ジョイント部材の凹部に嵌合させることにより、第１ジョイント部材と第２ジョイント部材との位置合わせを、簡単かつ確実に行うことができ、連結作業の向上を図ることができる。
【００３２】
（ｄ）請求項４記載の発明によると、第１ジョイント部材の係合突部の強度を向上させることができ、第１ジョイント部材の係合突部と第２ジョイント部材の係合突部との係合をより確実なものとすることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態を適用した支持ユニットの斜視図である。
【図２】同じく、要部の正面図である。
【図３】同じく、要部の平面図である。
【図４】図３におけるIＶ−IＶ線に沿う縦断面図である。
【図５】ボルトを締め付ける前の要部の平面図である。
【図６】図５におけるＶI−ＶI線に沿う縦断面図である。
【図７】第１ジョイント部材の側面図である。
【図８】第１ジョイント部材の正面図である。
【図９】第１ジョイント部材の底面図である。
【図１０】図７におけるＸ−Ｘ線に沿う縦断面図である。
【図１１】第２ジョイント部材の裏面側の側面図である。
【図１２】第２ジョイント部材の正面図である。
【図１３】第２ジョイント部材の底面図である。
【図１４】図１１におけるXIV−XIV線に沿う縦断面図である。
【符号の説明】
(１)支持ユニット
(２)支柱
(３)横杆
(４)ジョイント装置
(５)係止溝
(６)係止片
(6a)傾斜面
(７)第１ジョイント部材
(８)ボルト
(９)第２ジョイント部材
(10)ボルト
(11)基部
(12)ねじ孔
(13)係合突部
(13a)傾斜面
(14)係合片
(14a)傾斜面
(15)リブ
(16)基部
(16a)凹部
(17)ボルト挿入孔
(18)傾斜面
(18a)嵌合溝[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joint device for connecting a column and a reed.
[0002]
[Prior art]
Conventionally, in the joint device as described above, the support groove is provided along the longitudinal direction of the support column, and the end portion of the reed is fastened to the connecting member fitted in the lock groove with a bolt. Thus, the support piece and the recumbent are connected to each other by holding the locking piece provided in the opening of the locking groove (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-138893
[Problems to be solved by the invention]
However, the conventional joint device as described in the above-mentioned Patent Document 1 has a structure in which the end of the recumbent is connected to the connecting material, so that the shape of the recumbent is limited, and the strut and recumbent In order to firmly connect the two to each other, it is necessary to use at least two bolts to fasten the reed and the connecting member, and there is a problem that it takes a lot of time for mounting and removing work.
[0005]
In view of the above-described problems of the conventional technology, the present invention can easily attach and detach a support column and a recumbent member, and can firmly connect the support column and a recumbent member. An object of the present invention is to provide such a joint device.
[0006]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) In a joint device for connecting a support column and a recumbent member, they are provided along the longitudinal direction of one of the support column or recumbent member and protrude from each other so as to narrow the opening width on both sides of the opening facing outward. A first joint member that is slidably fitted in a locking groove provided with a locking piece, and has an engaging protrusion inclined to the longitudinal direction of the one at one end facing the longitudinal direction; A second joint member that is fixed to an end of the other one of the pillars or the reeds and that is inclined in the same direction as the engagement protrusion and has an inclined surface that can be engaged with the engagement protrusion. And by fastening the other ends of the first joint member and the second joint member to each other with a bolt that faces the same direction as the inclined direction of the inclined surface, the first joint member and the second joint member Between, To hold the serial locking pieces.
[0007]
(2) In the above item (1), the locking piece provided on one of the support column or the recumbent is inclined so that the plate thickness on the free end side gradually increases, and provided on the one of the above. Engagement pieces that engage with the locking pieces and are inclined so as to correspond to the inclination of the locking pieces are provided on both sides of the base portion of the first joint member that is slidably fitted into the locking grooves. .
[0008]
(3) In the above item (1) or (2), the second joint member is provided with a recess into which the engaging protrusion of the first joint member is fitted.
[0009]
(4) In any one of the above (1) to (3), a rib is provided between the engaging protrusion and the base of the first joint member.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 is a perspective view of a support unit (1) used in a workstation or the like to which one embodiment according to the present invention is applied, FIG. 2 is a front view of the main part, FIG. 3 is a plan view of the main part, 4 is a longitudinal sectional view taken along line IV-IV in FIG. 3, FIG. 5 is a plan view of the main part before tightening the bolt, and FIG. 6 is a longitudinal sectional view taken along line VI-VI in FIG. 7 to 10 are detailed views of the first joint member (7), and FIGS. 11 to 14 are detailed views of the second joint member (9).
[0011]
At the upper ends of the left and right support columns (2) and (2) that are erected on the support unit (1), the end portions of the horizontal rod (3) are connected via the joint device (4) according to the present invention. Are connected. Since the support unit (1) is not directly related to the present invention, it is not shown in the figure and will not be described in detail.
[0012]
As shown in FIGS. 3 and 5, the support column (2) is formed into a groove-shaped cross-sectional shape by extruding a metal material such as aluminum, and has four surfaces along the longitudinal direction (vertical direction) on the surface. A locking groove (5) is provided. In addition, regarding the locking groove (5) in each figure, reference numerals are given only to the locking grooves (5) on the side to which the reed (3) is connected, and the other locking grooves (5) are labeled with the reference numerals. Granting is omitted.
[0013]
A pair of locking pieces (6) projecting so as to narrow the width of the opening facing each other are provided on both sides of the opening of the support (2) facing the outside (side) of the locking groove (5). ing. As shown in FIG. 3 and FIG. 5, the locking piece (6) faces the free end side (near the center of the locking groove (5)) of the locking piece (6). An inclined surface (6a) is formed so that the thickness of 6) gradually increases.
[0014]
The horizontal bar (3) is made of the same material as that of the support (2) and has the same cross-sectional shape, and therefore illustration and detailed description thereof are omitted.
[0015]
The joint device (4) has a first joint member (7) slidably fitted in the locking groove (5) of the column (2), and faces in the left-right direction as shown in FIGS. And a second joint member (9) that is detachably fixed to the end of the reed (3) with a bolt (8), and has a first joint member (10) with a bolt (10) facing in a direction to be described later. 7) and the second joint member (9) are fastened, so that the locking piece (6) on the column (2) is placed between the first joint member (7) and the second joint member (9). It clamps and the support | pillar (2) and the recumbent (3) are connected.
[0016]
The first joint member (7) includes a base portion (11) that is slidably fitted in the locking groove (5) of the support column (2) and an upper end portion of the base portion (11) that faces the vertical direction. A downward engaging projection (13) provided on the (one end) and projecting outward from between the locking pieces (6) of the locking groove (5), and a lower end of the base (11) ( Provided on the other end), and is provided on both side portions of the base portion (11) with the bolt (10) screwed therein, and the locking piece (6) is inclined in the locking groove (5). And an engagement piece (14) engageable with the surface (6a).
[0017]
On the inner surface side (surface side opposite to the base portion (11)) of the engaging protrusion (13), the inclination is inclined so that the distal end side (lower side) is expanded with respect to the longitudinal direction of the support column (2). A surface (13a) is provided. A rib (15) for improving the strength of the engaging protrusion (13) is provided between the approximate center of the inclined surface (13a) of the engaging protrusion (13) and the base (11).
[0018]
The screw hole (12) is screwed with the bolt (10), and is inclined in the same direction as the inclination direction of the inclined surface (13a) of the engaging protrusion (13).
[0019]
That is, the first joint member (7) and the second joint member (9) are fastened by the bolt (10) that faces in the same direction as the inclination direction of the inclined surface (13a) in the engaging protrusion (13).
[0020]
The outer surface side of the engagement piece (14) in the first joint member (7), that is, the surface facing the inclined surface (6a) of the locking piece (6) in the column (2) is mainly shown in FIGS. As shown, an inclined surface (14a) that is inclined in the same direction as the inclined surface (6a) is provided. As a result, in the state where the base portion (11) of the first joint member (7) is fitted in the locking groove (5) of the support column (2), as shown in FIG. 3, the locking piece (6) is inclined. When the surface (6a) and the inclined surface (14a) of the engaging piece (14) are deeply engaged with each other, the first joint member (7) can come out of the opening of the locking groove (5). So that it can be reliably fitted.
[0021]
The second joint member (9) includes a base portion (16) that is detachably fixed to the end surface of the horizontal rod (3) with a bolt (8), and a back surface side of the base portion (16) (the first joint member (7) The bolt (10) is inclined to the same direction as the screw hole (12) at a position corresponding to the screw hole (12) of the first joint member (7). A bolt insertion hole (17) to be inserted and a recess (16a) provided at a position corresponding to the engagement protrusion (13) of the first joint member (7) and into which the engagement protrusion (13) is fitted. And projecting upward from the lower end of the recess (16a), and inclining in the same direction as the inclined surface (13a) of the engaging protrusion (13) of the first joint member (7). ) And an inclined surface (18) that can be engaged.
[0022]
When the first joint member (7) and the second joint member (9) are fastened, the engaging protrusion (13) of the first joint member (7) is replaced with the recess (16a) of the second joint member (9). The first joint member (7) and the second joint member (9) can be easily and reliably aligned with each other.
[0023]
In the center of the inclined surface (18) of the second joint member (9), there is provided a fitting groove (18a) into which the rib (15) of the engaging protrusion (13) of the first joint member (7) is fitted. It has been.
[0024]
As shown in FIGS. 5 and 6, the engaging protrusion (13) of the first joint member (7) fitted in the locking groove (5) of the support column (2) is fixed to the reed (3). The second joint member (9) is fitted into the recess (16a), and the inclined surface (13a) of the engaging projection (13) of the first joint member (7) and the second joint member (9) The inclined surface (18) is engaged shallowly.
[0025]
In this state, the bolt (10) is inserted into the bolt insertion hole (17), and is screwed into the screw hole (12) and tightened, whereby the first joint member (7 ) And the lower end of the second joint member (9), the first joint member (7) and the second joint member (9) are fastened by the direct fastening force of the bolt (10).
[0026]
In addition, at the upper ends of the first joint member (7) and the second joint member (9), the bolts (10) are tightened to engage the engagement protrusions (13) in the first joint member (7), The first joint so that the inclined surfaces of the two joint members (9) and the inclined surfaces (18) are engaged with each other, and the engaging protrusions (13) and (18) are deeply engaged with each other. The member (7) is guided.
[0027]
As a result, the first joint member (7) and the second joint member (9) are fastened with only one bolt (10), and the lower end portion where the bolt (10) is tightened, and both engagement protrusions. The locking pieces (6) of the column (2) are provided between the first joint member (7) and the second joint member (9) at two locations, the upper end where the portions (13) and (18) engage with each other. ) Acts so that the first joint member (7) and the second joint member (9) can be easily and firmly fixed to the support column (2) with a small number of bolts (10). . That is, the column (2) and the recumbent (3) can be easily and firmly connected.
[0028]
The present invention is not limited to the above embodiment. For example, the first joint member (7) is slidably fitted in a locking groove (not shown) provided in the horizontal rod (3), and the second joint member (9) is attached to the support column (2) at the end. It may be detachably fixed to.
[0029]
【The invention's effect】
According to the present invention, the following effects can be achieved.
(A) According to the first aspect of the present invention, the location where the first joint member and the second joint member are fastened by the bolt only by fastening the bolt and the location where the two engaging protrusions engage with each other. In this case, a force for clamping the locking piece of the support acts between the first joint member and the second joint member, so the first joint member and the second joint member are attached to the support with a small number of bolts. It is possible to easily and firmly fix the strut and the recumbent to be easily and firmly connected.
Further, since the support column and the recumbent can be connected with a small number of bolts, both can be easily attached and removed.
Furthermore, since the 2nd joint member is detachably fixed to the support | pillar or recumbent, there is no restriction | limiting in the shape of a support | pillar or recumbent.
[0030]
(B) According to the invention described in claim 2, the engagement between the engagement piece of the engagement groove and the engagement piece of the first joint member is ensured, and the connection between the support column and the reed is further strengthened. be able to.
[0031]
(C) According to the invention described in claim 3, the first joint member and the second joint member are aligned by fitting the engagement protrusion of the first joint member into the recess of the second joint member. This can be performed easily and reliably, and the connection work can be improved.
[0032]
(D) According to invention of Claim 4, the intensity | strength of the engaging protrusion of a 1st joint member can be improved, The engaging protrusion of a 1st joint member, and the engaging protrusion of a 2nd joint member, The engagement can be made more reliable.
[Brief description of the drawings]
FIG. 1 is a perspective view of a support unit to which an embodiment of the present invention is applied.
FIG. 2 is a front view of the main part of the same.
FIG. 3 is also a plan view of the main part.
4 is a longitudinal sectional view taken along line IV-IV in FIG.
FIG. 5 is a plan view of a main part before tightening a bolt.
6 is a longitudinal sectional view taken along line VI-VI in FIG.
FIG. 7 is a side view of the first joint member.
FIG. 8 is a front view of a first joint member.
FIG. 9 is a bottom view of the first joint member.
10 is a longitudinal sectional view taken along line XX in FIG.
FIG. 11 is a side view of the second joint member on the back surface side.
FIG. 12 is a front view of a second joint member.
FIG. 13 is a bottom view of the second joint member.
14 is a longitudinal sectional view taken along line XIV-XIV in FIG.
[Explanation of symbols]
(1) Support unit
(2) Prop
(3) Yokohama
(4) Joint device
(5) Locking groove
(6) Locking piece
(6a) Inclined surface
(7) First joint member
(8) Bolt
(9) Second joint member
(10) Bolt
(11) Base
(12) Screw hole
(13) Engagement protrusion
(13a) Inclined surface
(14) Engagement piece
(14a) Inclined surface
(15) Rib
(16) Base
(16a) Recess
(17) Bolt insertion hole
(18) Inclined surface
(18a) Mating groove

Claims

In the joint device that connects the column and the recumbent shaft,
Fit along the longitudinal direction of one of the support pillars or the reeds and slidably fit into a locking groove provided with locking pieces protruding from each other so as to narrow the opening width on both sides of the opening facing outward. And a first joint member having an engagement protrusion inclined at one end facing the longitudinal direction with respect to the longitudinal direction of the one and the other end of the pillar or the other side. And a second joint member having an inclined surface that is inclined in the same direction as the engaging protrusion and is engageable with the engaging protrusion, and having a bolt that faces the same direction as the inclined direction of the inclined surface. The locking piece is sandwiched between the first joint member and the second joint member by fastening the other end portions of the first joint member and the second joint member to each other. Characteristic Joy Winding device.

The locking piece provided on one of the support or the side is inclined so that the thickness of the free end side gradually increases, and the locking piece is slidably fitted in the locking groove provided on the one. 2. The joint device according to claim 1, wherein engaging pieces are provided on both sides of the base portion of the first joint member to be engaged with the engaging pieces and inclined so as to correspond to the inclination of the engaging pieces.

The joint device according to claim 1, wherein the second joint member is provided with a recess into which the engaging protrusion of the first joint member is fitted.

The joint device according to any one of claims 1 to 3, wherein a rib is provided between the engagement protrusion and the base of the first joint member.