JP4245101B2

JP4245101B2 - Structure of gas damper mounting part in flip-up door

Info

Publication number: JP4245101B2
Application number: JP28916799A
Authority: JP
Inventors: 義明竹森
Original assignee: Nippon Fruehauf Co Ltd
Current assignee: Nippon Fruehauf Co Ltd
Priority date: 1999-10-12
Filing date: 1999-10-12
Publication date: 2009-03-25
Anticipated expiration: 2019-10-12
Also published as: JP2001105873A

Description

【０００１】
【発明の属する技術分野】
この発明は、箱型ボディの後部又は側面に取付ける跳ね上げ式扉におけるガスダンパ取付部の構造に関するものである。
【０００２】
【従来の技術】
跳ね上げ式扉Ａはたとえば図３に示す如く、箱型ボディの後部門構の上枠又は箱型ボディの上部枠Ｂに蝶番Ｃで上下方向開閉可能に取付けられている。そして同じく門構を構成する側枠Ｄの中間部に下端（ロッド端）を取付けたガスダンパＥの反発力で開放される。又閉めるときは、扉Ａの先端に取付けたロープＦ等を下方に引いて閉める構成となっている。
【０００３】
このような跳ね上げ式扉Ａを跳ね上げる動力となるガスダンパＥは上に述べたように、門構を構成する側枠の中間部にロッド端を、そして、上部のシリンダ端を跳ね上げ式扉Ａの側枠に取付ける。しかし、シリンダ端の取付けられる扉Ａの側枠Ｇは図４に示すような構成となっている。ただし、図４の場合は、跳ね上げ式扉Ａが大型の場合で、扉の両側に２本宛のガスダンパＥが取付けられた例である。
【０００４】
図５は扉Ａの公知側枠の一例を示し、本体部ａの片側にＬ型フランジｂが、又Ｌ型フランジｂの反対側に垂直フランジｃが、そして一対のＬ型補強リブｄが中央部内側に設けられている。
このような側枠は図４のごとく、ガスダンパＥの頂部即ちシリンダ端を取付ける部分のＬ型補強リブｄを全部切り欠き（約８００mm）、この切り欠いた部分にブラケットＥ₁と取付ブラケットＥ₂を介し取付けている。この切り欠きにより、扉Ａが下降し門構の側枠Ｄと平行に閉じられるとき、ガスダンパＥと側枠ＧのＬ型リブｄ，ｄとが干渉しないようにしている。
【０００５】
しかしこのように折角の補強リブｄを切り欠いては（図の例では約８００mm）それだけ強度的に問題となるばかりでなく、その加工に余分の手間を要するので、改善がのぞまれている。
【０００６】
【発明が解決しようとする課題】
扉の側枠補強リブの切り欠き量を極力少なくして、補強効果を確保し、側枠をアルミ型材として扉全体を軽量化して、ガスダンパの能力を小さく設定可能にすることにより、操作力を増大することのないガスダンパ取付部の構造を提供することを目的とする。
【０００７】
【課題を解決するための手段】
門構を構成する側枠に取付けた左右２本宛のガスダンパによって開放される跳ね上げ式扉Ａにおいて、該跳ね上げ式扉の側枠材Ｇをアルミ型材で構成し、側枠材Ｇに断面逆Ｔ字型リブ４を設け、該逆Ｔ字型リブ４の水平フランジ部４´の両側にＬ字型取付ブラケット５を介し、かつガスダンパＥの上部を取付けるＬ字型取付ブラケット５の一辺を水平フランジ部４´の側縁４''より外側にずらして取付け、さらに前記水平フランジ部４´の両側にガスダンパＥの下部を取付ける断面Ｕ字型ブラケット８との干渉を避け得る切欠部７を設けた。
また、跳ね上げ式扉のアルミ型材製側枠材Ｇがアルミ型材よりなり、該アルミ型材製側枠Ｇの本体部１の片側にＬ型フランジ２を、同じく反対側に垂直フランジ３を有し、これらフランジの中間に逆Ｔ字型リブ４を有している。
【０００８】
【発明の実施の形態】
図１と図２に基いて説明する。図１は図４と同様部位を同一方向からみた跳ね上げ式扉の側枠Ｇ及び、ガスダンパＥの上部取付構造を示す図、図２は、側枠Ｇの縦断面図である。
【０００９】
図２で側枠Ｇは、アルミ型材よりなり、その本体部１の片側に一体のＬ型リブ２、反対側に垂直リブ３が一体に形成されている。そして中間位置には、逆Ｔ字型リブ４がこれまた一体に設けられている。
このような側枠ＧにガスダンパＥの上端を取付けるには、逆Ｔ字型リブ４の加工は、水平フランジ部４´の両側の符号７（図１）の部分をたとえば１００mm切り欠くだけである。この切欠部７を形成することにより、扉が閉まったとき、ガスダンパＥの下部ロッド端取付部の断面Ｕ字型ブラケット８が、この切欠部７の部分に嵌り干渉することなく納まることができる。そしてシリンダ上端はＬ字型ブラケット５を介し水平フランジ４´の側部に取付ける構造となっている。
【００１０】
ブラケット５はＬ字型に形成されており、たとえばリベット６で水平フランジ４´に固定される。ロッド端は側枠Ｄ側に断面Ｕ字型ブラケット８を介し従来と同様に取付けられる。
【００１１】
かくして、跳ね上げ式扉Ａは図３と同様、先端のロープＦを側方に引くと、扉ＡはガスダンパＥの反発力が付与されて軽快に開放される。逆に閉めるときは、ロープＦを下に引くと扉は閉じられ、門構の側枠Ｄと平行になるまで下る。このとき、シリンダＥの上端はＬ字型ブラケット５に取付けられているが、このブラケット５が逆Ｔ型リブ４の水平フランジ４´の側縁４''よりさらに外に張り出しているので、扉Ａの下降時にシリンダＥの下端を取付ける断面Ｕ字型リブ４（水平フランジ４´）との干渉が避けられる。
【００１２】
【発明の効果】
側枠をアルミ型材を使用し、軽量化した事により、ガスダンパＥの能力を小さいものに設定できる。又、側枠Ｇの切欠部７が従来と比し非常に少くなり、また長手方向にわたって全部切落す必要がないので側枠Ｇの剛性アップと共に、加工工数の減少を図ることができる。
【図面の簡単な説明】
【図１】本発明に係る取付部構成を備えた跳ね上げ式扉の部分斜視図。
【図２】扉の側枠の縦断面図。
【図３】公知跳ね上げ式扉の側面図。
【図４】従来型のガスダンパ取付部構造を示す部分斜視図。
【図５】従来型の扉の側枠材の縦断面図。
【符号の説明】
Ａ跳ね上げ式扉Ｂ門構の上枠
Ｃ蝶番Ｄ（門構を構成する)側枠
Ｅ（側枠材の)ガスダンパＦロープ
Ｇ (扉の)側枠１本体部
２Ｌ型リブ３垂直リブ
４逆Ｔ字型リブ 4' 水平フランジ部
4'' 側縁５Ｌ字型ブラケット
６リベット７切欠部
８断面Ｕ字型ブラケット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a gas damper mounting portion in a flip-up door that is mounted on a rear portion or a side surface of a box-type body.
[0002]
[Prior art]
For example, as shown in FIG. 3, the flip-up door A is attached to the upper frame B of the rear section structure of the box-type body or the upper frame B of the box-type body so as to be opened and closed in the vertical direction. And it is open | released with the repulsive force of the gas damper E which attached the lower end (rod end) to the intermediate part of the side frame D which comprises a gate structure similarly. When closing, the rope F attached to the front end of the door A is pulled downward to close.
[0003]
As described above, the gas damper E, which is the power for flipping up such a flip-up door A, has a rod end in the middle part of the side frame constituting the gate structure and a cylinder end in the upper part. Attach to the side frame of A. However, the side frame G of the door A to which the cylinder end is attached is configured as shown in FIG. However, the case of FIG. 4 is an example in which the flip-up door A is large, and two gas dampers E are attached to both sides of the door.
[0004]
FIG. 5 shows an example of a known side frame of the door A, with an L-shaped flange b on one side of the body part a, a vertical flange c on the opposite side of the L-shaped flange b, and a pair of L-shaped reinforcing ribs d in the center. It is provided inside the unit.
As shown in FIG. 4, such a side frame has a notch (about 800 mm) of the L-shaped reinforcing rib d at the top of the gas damper E, that is, the portion to which the cylinder end is attached, and the bracket E ₁ and the mounting bracket E _{2 at the} notched portion. It is attached via. This notch prevents the gas damper E and the L-shaped ribs d and d of the side frame G from interfering when the door A is lowered and closed in parallel with the side frame D of the gate structure.
[0005]
However, notching the bent reinforcing rib d in this way (about 800 mm in the example in the figure) not only causes a problem in strength, but also requires extra work for the processing, so improvement is desired. .
[0006]
[Problems to be solved by the invention]
By reducing the cutout amount of the door side frame reinforcement rib as much as possible to ensure the reinforcement effect, the side frame is made of aluminum mold, the whole door is lightened, and the capacity of the gas damper can be set small, thereby reducing the operating force. An object of the present invention is to provide a structure of a gas damper mounting portion that does not increase.
[0007]
[Means for Solving the Problems]
In the flip-up type door A opened by gas dampers attached to the left and right two attached to the side frame constituting the gate structure, the side frame material G of the flip-up type door is made of an aluminum mold, and the side frame material G has a cross section. An inverted T-shaped rib 4 is provided, and one side of the L-shaped mounting bracket 5 to which the upper portion of the gas damper E is attached via L-shaped mounting brackets 5 on both sides of the horizontal flange portion 4 ′ of the inverted T-shaped rib 4. The horizontal flange portion 4 ′ is attached with a shift to the outside of the side edge 4 ″, and the cutout portions 7 that can avoid interference with the U-shaped bracket section 8 that attaches the lower portion of the gas damper E to both sides of the horizontal flange portion 4 ′. Provided.
Further, the aluminum frame side frame material G of the flip-up door is made of an aluminum mold material, and has an L-shaped flange 2 on one side of the main body portion 1 of the aluminum frame material side frame G and a vertical flange 3 on the opposite side. In the middle of these flanges, an inverted T-shaped rib 4 is provided.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
This will be described with reference to FIGS. FIG. 1 is a view showing a side frame G of a flip-up door and an upper mounting structure of a gas damper E as seen from the same direction as in FIG. 4, and FIG. 2 is a longitudinal sectional view of the side frame G.
[0009]
In FIG. 2, the side frame G is made of an aluminum mold, and an L-shaped rib 2 is integrally formed on one side of the main body 1, and a vertical rib 3 is integrally formed on the opposite side. At the intermediate position, the inverted T-shaped rib 4 is also provided integrally.
In order to attach the upper end of the gas damper E to such a side frame G, the processing of the inverted T-shaped rib 4 is merely cutting out portions of the reference numeral 7 (FIG. 1) on both sides of the horizontal flange portion 4 ′, for example, 100 mm. . By forming the notch 7, when the door is closed, the cross-section U-shaped bracket 8 of the lower rod end mounting portion of the gas damper E can fit into the notch 7 and fit without interference. The upper end of the cylinder is attached to the side of the horizontal flange 4 ′ via the L-shaped bracket 5.
[0010]
The bracket 5 is formed in an L shape, and is fixed to the horizontal flange 4 ′ with a rivet 6, for example. The rod end is attached to the side frame D side through a U-shaped bracket 8 in the same manner as in the prior art.
[0011]
Thus, as in the case of FIG. 3, when the pull-up type door F is pulled to the side, the flip-up type door A is releasably opened by the repulsive force of the gas damper E. Conversely, when closing, pulling the rope F down closes the door and lowers until it is parallel to the side frame D of the gate structure. At this time, the upper end of the cylinder E is attached to the L-shaped bracket 5, but this bracket 5 protrudes further outward than the side edge 4 ″ of the horizontal flange 4 ′ of the inverted T-shaped rib 4. Interference with the U-shaped rib 4 (horizontal flange 4 ') for attaching the lower end of the cylinder E when A is lowered is avoided.
[0012]
【The invention's effect】
By using aluminum molds for the side frames and reducing the weight, the capacity of the gas damper E can be set small. Further, the number of notches 7 in the side frame G is much smaller than in the prior art, and since it is not necessary to cut off all over the longitudinal direction, the rigidity of the side frame G can be increased and the number of processing steps can be reduced.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of a flip-up door provided with a mounting portion configuration according to the present invention.
FIG. 2 is a longitudinal sectional view of a side frame of a door.
FIG. 3 is a side view of a known flip-up door.
FIG. 4 is a partial perspective view showing a conventional gas damper mounting portion structure.
FIG. 5 is a longitudinal sectional view of a side frame member of a conventional door.
[Explanation of symbols]
A Bounce-up door B Top frame C Hinge D Side frame E (contains the gate) Gas damper F Rope G (door) side frame 1 Body 2 L-shaped rib 3 Vertical rib 4 Reverse T-shaped rib 4 'Horizontal flange
4 '' side edge 5 L-shaped bracket 6 rivet 7 notch 8 cross section U-shaped bracket

Claims

In the flip-up door (A) opened by the gas dampers to the left and right two attached to the side frame constituting the gate structure, the side frame member (G) of the flip-up door is made of an aluminum mold, and the side frame The material (G) is provided with an inverted T-shaped rib (4) in cross section, an L-shaped mounting bracket (5) on both sides of the horizontal flange portion (4 ') of the inverted T-shaped rib (4), and a gas damper. (E) The upper part of the L-shaped mounting bracket (5) to which the upper part is attached is shifted to the outside from the side edge (4 ″) of the horizontal flange part (4 ′), and the horizontal flange part (4 ′) A structure of a gas damper mounting portion in a flip-up type door, wherein notches (7) capable of avoiding interference with a U-shaped bracket (8) for attaching a lower portion of a gas damper (E) are provided on both sides.

The aluminum frame side frame material (G) of the flip-up door is made of an aluminum mold material, and an L-shaped flange (2) is placed on one side of the main body (1) of the aluminum frame side frame (G), and on the opposite side. The structure of the gas damper mounting part in the flip-up type door according to claim 1, wherein the structure has a vertical flange (3) and an inverted T-shaped rib (4) in the middle of the flanges.