JPS63192396U - - Google Patents
Info
- Publication number
- JPS63192396U JPS63192396U JP6979888U JP6979888U JPS63192396U JP S63192396 U JPS63192396 U JP S63192396U JP 6979888 U JP6979888 U JP 6979888U JP 6979888 U JP6979888 U JP 6979888U JP S63192396 U JPS63192396 U JP S63192396U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- pumps
- accumulator
- fork
- pump
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Description
第１図はこの考案にかかる実施例に組込まれた
油圧駆動装置の模式説明図、第２図はその油圧回
路図である。
２……フオーク、３……可変容量形油圧モータ
／ポンプ、４……駆動車輪、５……可変容量形油
圧モータ／ポンプ、６……油圧アキユムレータ、
７……固定容量形油圧ポンプ。
FIG. 1 is a schematic illustration of a hydraulic drive device incorporated in an embodiment of this invention, and FIG. 2 is a hydraulic circuit diagram thereof. 2...Fork, 3...Variable displacement hydraulic motor/pump, 4...Drive wheel, 5...Variable displacement hydraulic motor/pump, 6...Hydraulic accumulator,
7...Fixed displacement hydraulic pump.
Claims (1)
れる油圧アキユムレータと、前記アキユムレータ
にそれぞれ高圧側が接続された２個の可変容量形
油圧モータ／ポンプと、前記２個の油圧モータ／
ポンプの押し除け容積をそれぞれ制御する手段と
を備え、前記２個の油圧モータ／ポンプの一方の
回転軸をフオークの昇降駆動軸に接続し、他方の
回転軸を走行車輪駆動軸に接続してなり、前記フ
オークの下降時もしくは前記車輪の走行減速時に
前記それぞれの油圧モータ／ポンプを油圧ポンプ
として動作させ、そのポンプ作用により吐出され
た圧油を前記油圧アキユムレータに貯え、その貯
えられた圧油をつぎの前記フオークの上昇時もし
くは前記車輪の走行加速時に放出し、油圧モータ
として前記各油圧モータ／ポンプを動作させるよ
うにしたことを特徴とするフオークリフト。 ２ フオークの昇降駆動軸および走行車輪駆動軸
に接続する各可変容量形油圧モータ／ポンプの高
圧側を同一の油圧アキユムレータに接続してなる
実用新案登録請求の範囲第１項記載のフオークリ
フト。 ３ 油圧アキユムレータに圧油を蓄圧する油圧ポ
ンプをその駆動原動機とともに台車に搭載し、前
記油圧アキユムレータの圧力が一定圧力より低下
したときに圧油の補充を前記アキユムレータに対
し間欠的に行わせるようにしてなる実用新案登録
請求の範囲第１項または第２項記載のフオークリ
フト。[Claims for Utility Model Registration] 1. A hydraulic pump, a hydraulic accumulator that accumulates pressure by the hydraulic pump, two variable displacement hydraulic motors/pumps each having a high pressure side connected to the accumulator, and the two hydraulic pumps. motor/
means for controlling the displacement volumes of the pumps, one rotating shaft of the two hydraulic motors/pumps is connected to a lifting drive shaft of the fork, and the other rotating shaft is connected to a traveling wheel drive shaft. When the fork is lowered or when the wheel is decelerating, each of the hydraulic motors/pumps is operated as a hydraulic pump, and the pressure oil discharged by the pump action is stored in the hydraulic accumulator, and the stored pressure oil is The forklift is characterized in that the fork is discharged when the fork is next raised or when the wheels are accelerated to operate each of the hydraulic motors/pumps as a hydraulic motor. 2. The forklift according to claim 1, wherein the high pressure side of each variable displacement hydraulic motor/pump connected to the lifting drive shaft and the traveling wheel drive shaft of the fork is connected to the same hydraulic accumulator. 3. A hydraulic pump for accumulating pressure oil in a hydraulic accumulator is mounted on a truck along with its driving motor, and when the pressure of the hydraulic accumulator drops below a certain pressure, the accumulator is intermittently refilled with pressure oil. A forklift according to claim 1 or 2 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6979888U JPS63192396U (en) | 1988-05-26 | 1988-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6979888U JPS63192396U (en) | 1988-05-26 | 1988-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63192396U true JPS63192396U (en) | 1988-12-12 |
Family
ID=30910854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6979888U Pending JPS63192396U (en) | 1988-05-26 | 1988-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63192396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015509170A (en) * | 2012-01-09 | 2015-03-26 | イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ | Combination of propulsion circuit and work circuit for work equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53136228A (en) * | 1977-04-30 | 1978-11-28 | Nissan Motor Co Ltd | Fork lift truck |
-
1988
- 1988-05-26 JP JP6979888U patent/JPS63192396U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53136228A (en) * | 1977-04-30 | 1978-11-28 | Nissan Motor Co Ltd | Fork lift truck |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015509170A (en) * | 2012-01-09 | 2015-03-26 | イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ | Combination of propulsion circuit and work circuit for work equipment |
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