JPH0522677Y2 - - Google Patents
Info
- Publication number
- JPH0522677Y2 JPH0522677Y2 JP1987044584U JP4458487U JPH0522677Y2 JP H0522677 Y2 JPH0522677 Y2 JP H0522677Y2 JP 1987044584 U JP1987044584 U JP 1987044584U JP 4458487 U JP4458487 U JP 4458487U JP H0522677 Y2 JPH0522677 Y2 JP H0522677Y2
- Authority
- JP
- Japan
- Prior art keywords
- parking brake
- relay
- low
- auxiliary transmission
- transmission
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000007935 neutral effect Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 4
- 230000004913 activation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Control Of Transmission Device (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は副変速機のニユートラル警報装置に
関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a neutral warning device for an auxiliary transmission.
（従来の技術）
トラツク等の大型車両にあつては多くの場合、
主変速機の変速段数に加えてハイロー２段変速を
行う副変速機が採用されている（実開昭60−
16040号公報参照）。(Prior art) In the case of large vehicles such as trucks, in many cases,
In addition to the number of gears of the main transmission, an auxiliary transmission is adopted that performs two-speed high-low gear shifting (1986-
(See Publication No. 16040).
（考案が解決しようとする問題点）
ところで、このような副変速機にあつては、ハ
イローの切換時（ギヤシフト操作時）に例えばギ
ヤの山どうしが突き当たつてニユートラル状態で
停止してしまうことがあり、特に副変速機を駐車
ブレーキ（エンジン出力を伝達する軸の回転を拘
束して制動する）よりも車軸側に搭載した車両に
あつては、副変速機がニユートラル状態で停止し
ていると、駐車ブレーキをかけてもブレーキが効
かないという事態が考えられる。(Problem that the invention aims to solve) By the way, with such an auxiliary transmission, when switching between high and low (gear shift operation), for example, the gear peaks collide with each other and the gear stops in the neutral state. Especially in vehicles where the auxiliary transmission is mounted closer to the axle than the parking brake (which brakes by restricting the rotation of the shaft that transmits engine output), the auxiliary transmission may stop in neutral. If this happens, there is a possibility that the parking brake will not work even if you apply the parking brake.
（問題点を解決するための手段）
この考案はこのような問題点を解決するため、
主変速機の変速段数に加えてハイローの２段変速
を行う副変速機を備え、この副変速機を駐車ブレ
ーキより車軸側に搭載した車両において、副変速
機のシフト位置を検出する手段１６，１７及び１
３，１５と、駐車ブレーキの作動状態を検出する
手段３１と、これら両手段の検出信号に基づいて
副変速機がニユートラル状態にありかつ駐車ブレ
ーキが作動しているときに警報手段１９を作動さ
せるリレー回路２０とを備えた。(Means for solving the problem) In order to solve this problem, this invention
Means 16 for detecting the shift position of the auxiliary transmission in a vehicle that is equipped with an auxiliary transmission that performs high-low two-speed shifting in addition to the number of gears of the main transmission, and in which the auxiliary transmission is mounted closer to the axle than the parking brake; 17 and 1
3, 15, means 31 for detecting the operating state of the parking brake, and actuating the alarm means 19 when the auxiliary transmission is in the neutral state and the parking brake is operating based on detection signals from both of these means. A relay circuit 20 is provided.
（作用）
副変速機がニユートラル状態にあるときに駐車
ブレーキを作動させると、リレー回路２０の通電
により警報手段１９が作動し、運転者に駐車ブレ
ーキが効かないことを警報する。(Function) When the parking brake is activated when the sub-transmission is in the neutral state, the alarm means 19 is activated by energization of the relay circuit 20, which alerts the driver that the parking brake is not working.
（実施例）
この考案を副変速機を駐車ブレーキよりも車軸
側に搭載した車両を前提しており、第１図におい
て、１は副変速機２のギヤをシフトフオーク３を
介しハイ−ロウに切り換えるエアシリンダで、そ
の内部をハイ側室４とロウ側室５に画成するピス
トン６にはシフトシヤフト７が連結される。８は
エアシリンダ１のハイ側室４を、９は同じくロウ
側室５をエアタンク１０に接続するエア圧通路
で、これらの通路８，９の途中にはハイ、ローマ
グネツトバルブ１１，１２（三方向電磁弁）が介
装される。(Example) This invention is based on a vehicle in which the auxiliary transmission is mounted closer to the axle than the parking brake, and in FIG. A shift shaft 7 is connected to a piston 6 that is a switching air cylinder and defines the interior thereof into a high side chamber 4 and a low side chamber 5. 8 is an air pressure passage connecting the high side chamber 4 of the air cylinder 1, and 9 is an air pressure passage connecting the low side chamber 5 to the air tank 10. In the middle of these passages 8 and 9 are high and low magnetic valves 11 and 12 (three-way valves). A solenoid valve) is installed.
マグネツトバルブ１１はリレー１３を介してハ
イ−ロウ切換スイツチ１４のハイ側接点に、マグ
ネツトバルブ１２はリレー１５を介して切換スイ
ツチ１４のロウ側接点に接続され、リレー１３，
１５の励磁回路にはシフト位置検出手段としての
マイクロスイツチ１６，１７が介装される。マイ
クロスイツチ１６，１７はプツシユロツド１６
ａ，１７ａの先端はシフトシヤフト７のくぼみ１
８に入ると閉成（ON）し、またくぼみ１８から
押し出されると開成（OFF）するようになつて
いる。 The magnetic valve 11 is connected to the high side contact of the high-low changeover switch 14 through the relay 13, and the magnetic valve 12 is connected to the low side contact of the changeover switch 14 through the relay 15.
Micro switches 16 and 17 are interposed in the excitation circuit 15 as shift position detection means. Micro switches 16 and 17 are push rods 16
The tip of a, 17a is the recess 1 of the shift shaft 7
8, it is closed (ON), and when it is pushed out from the recess 18, it is opened (OFF).
そして、このようなマグネツトバルブ１１，１
２の駆動回路にはリレー１３または１５からの電
流により作動して警報ブザー１９の回路を閉成す
るリレー２０が設けられる。警報ブザー１９をバ
ツフア２２な接続する回路にはリレー２０と直列
に駐車ブレーキレバー３０に連動するブレーキス
イツチ３１が介装される、ブレーキスイツチ３１
は駐車ブレーキ作動時にレバー３０を倒すと開成
（OFF）するようになつている。３２は駐車ブレ
ーキ作動時に点灯するパイロツトランプ、２１は
ヒユーズを示す。 And, such a magnetic valve 11,1
The second drive circuit is provided with a relay 20 that is activated by the current from the relay 13 or 15 to close the circuit of the alarm buzzer 19. A brake switch 31 interlocked with a parking brake lever 30 is installed in a circuit connecting the alarm buzzer 19 to the buffer 22 in series with the relay 20.
The parking brake is opened (OFF) by tilting the lever 30 when the parking brake is activated. 32 is a pilot lamp that lights up when the parking brake is activated, and 21 is a fuse.
したがつて、例えば副変速機を図示の状態から
ロウ側にギヤシフトする場合には、ハイ−ロウ切
換スイツチ１４のロウ側に入れると、ロウ側回路
（リレー１５はロウ側マイクロスイツチ１７の
OFFにより消磁され、ONの状態になつている）
が閉成され、マグネツトバルブ１２が切り換わつ
てエアタンク１０からのエア圧をエアシリンダ１
のロウ側室５に供給し、これによりピストン６が
ロウ側に移動してロウギヤを噛合させる。 Therefore, for example, when shifting the auxiliary transmission from the illustrated state to the low side, when the high-low changeover switch 14 is set to the low side, the low side circuit (the relay 15 is connected to the low side micro switch 17).
It is demagnetized by OFF and becomes ON state)
is closed, the magnetic valve 12 is switched and the air pressure from the air tank 10 is transferred to the air cylinder 1.
This causes the piston 6 to move to the row side and engage the row gear.
なお、ハイ側マグネツトバルブ１１は切換スイ
ツチ１４をロウ側に入れたときにハイ側回路の開
成により切り換わつて、エアシリンダ１のハイ側
室５を大気開放する。 The high side magnetic valve 11 is switched by opening the high side circuit when the changeover switch 14 is turned to the low side, thereby opening the high side chamber 5 of the air cylinder 1 to the atmosphere.
この移動時に、シフトシヤフト７はハイ側マイ
クロスイツチ１６のプツシユロツド１６ａをくぼ
み１８から押し出す、つまりスイツチ１６を
OFFにする一方、ロウ側マイクロスイツチ１７
はロウギヤ位置でプツシユロツド１７ａがくぼみ
１８に入るとONになり、リレー１５を励磁して
ロウ側回路を閉成する。 During this movement, the shift shaft 7 pushes the push rod 16a of the high side micro switch 16 out of the recess 18, that is, it pushes the switch 16.
While turning it off, the low side micro switch 17
is turned on when the push rod 17a enters the recess 18 in the low gear position, energizing the relay 15 and closing the low side circuit.
この場合、切換スイツチ１４をロウ側に入れて
から、シフトシヤフト７の移動によつてロウ側マ
イクロスイツチ１７のプツシユロツド１７ａがく
ぼみ１８に入る（つまりスイツチ１７がONにな
る）までの間、つまりギヤが完全に切換られるま
での間はリレー１５が作動し、このリレー１５の
作動中には、リレー１５からの電流によりリレー
２０が励磁されて閉成する。この状態はハイ−ロ
ウの切り換え時にギヤの山どうしが突き当たつて
ニユートラル状態で停止した場合など、そのまま
維持される。 In this case, the period from when the changeover switch 14 is set to the low side until the push rod 17a of the low side micro switch 17 enters the recess 18 due to the movement of the shift shaft 7 (that is, when the switch 17 is turned ON), the gear Relay 15 operates until the switch is completely switched, and while relay 15 is in operation, relay 20 is energized by the current from relay 15 and closed. This state is maintained as it is, such as when the gear peaks collide with each other during high-low switching and the gear stops in the neutral state.
したがつて、副変速機がこのようなニユートラ
ル状態にあるときに、駐車ブレーキを作動させる
べくレバー３０を起こすと、ブレーキスイツチ３
１が閉成し、既に閉成しているリレー２０を介し
て警報ブザー１９に通電され、ブザー１９を作動
させる。これにより運転者は副変速機がニユート
ラル状態にあるため、駐車ブレーキをかけても、
ブレーキが効かないことに気がつく。 Therefore, when the sub-transmission is in such a neutral state and the lever 30 is raised to operate the parking brake, the brake switch 3 is activated.
1 closes, the alarm buzzer 19 is energized via the already closed relay 20, and the buzzer 19 is activated. As a result, the driver can apply the parking brake because the auxiliary transmission is in neutral.
I noticed that the brakes were not working.
副変速機をロウギヤからハイギヤにシフトする
場合には切換スイツチ１４をハイ側に切換ればよ
く、その場合には前記と逆にロウ側マグネツトバ
ルブ１２がエアシリンダ１のロウ側室４を大気解
放する一方、ハイ側マグネツトバルブ１１がエア
タンクからのエア圧をハイ側室４に供給し、ピス
トン６がハイ側に移動してハイギヤを噛み合わせ
る。そのとき、ギヤが完全に切換られまでの間、
リレー１３が作動し、リレー２０はリレー１３の
作動期間だけ、リレー１３からの電流によりON
の状態に保持される。したがつて、前記と同様に
ギヤがニユートラル状態のままであれば、この間
に駐車ブレーキが作動すると、警報ブザー１９が
作動して警報することになる。 When shifting the sub-transmission from a low gear to a high gear, the changeover switch 14 can be switched to the high side, and in that case, contrary to the above, the low side magnetic valve 12 opens the low side chamber 4 of the air cylinder 1 to the atmosphere. Meanwhile, the high side magnetic valve 11 supplies air pressure from the air tank to the high side chamber 4, and the piston 6 moves to the high side to engage the high gear. At that time, until the gear is completely changed,
Relay 13 is activated, and relay 20 is turned ON by the current from relay 13 only during the activation period of relay 13.
is maintained in the state of Therefore, as described above, if the gear remains in the neutral state and the parking brake is activated during this period, the warning buzzer 19 will be activated to issue an alarm.
（考案の効果）
以上のように本考案によれば、主変速機の変速
段数に加えてハイローの２段変速を行う副変速機
を備え、この副変速機を駐車ブレーキより車軸側
に搭載した車両において、副変速機のシフト位置
を検出する手段と、駐車ブレーキの作動状態を検
出する手段と、これら両手段の検出信号に基づい
て副変速機がニユートラル状態にあり駐車ブレー
キが作動しているときに警報手段を作動させるリ
レー回路とを備えたため、ハイ−ロウの切り換え
時にギヤが完全に切り換わらずに、副変速機がニ
ユートラル状態で停止した場合、この状態で駐車
ブレーキを作動させると警報が作動するので、運
転者は駐車ブレーキが効かないことを認識するこ
とができ、適切な処理を施すことが可能となる。(Effects of the invention) As described above, according to the invention, in addition to the number of gears of the main transmission, there is also an auxiliary transmission that performs high-low two-speed shifting, and this auxiliary transmission is mounted closer to the axle than the parking brake. In a vehicle, a means for detecting a shift position of an auxiliary transmission, a means for detecting an operating state of a parking brake, and a means for detecting the operating state of a parking brake when the auxiliary transmission is in a neutral state based on detection signals from both of these means. Since the relay circuit is equipped with a relay circuit that activates the warning means, if the auxiliary transmission stops in neutral without completely changing gears when switching between high and low, an alarm will be generated if the parking brake is activated in this state. Since the parking brake is activated, the driver can recognize that the parking brake is not working, and can take appropriate measures.
第１図は本考案の実施例を示す構成図である。
１……エアシリンダ、４……ハイ側室、５……
ロウ側室、７……シフトシヤフト、１０……エア
タンク、１１，１２……マグネツトバルブ、１３
……リレー、１４……ハイ−ロウ切換スイツチ、
１５……リレー、１６，１７……マイクロスイツ
チ、１８……くぼみ、１９……警報ブザー、２０
……リレー、３０……駐車ブレーキ作動レバー、
３１……ブレーキスイツチ。
FIG. 1 is a block diagram showing an embodiment of the present invention. 1... Air cylinder, 4... High side chamber, 5...
Row side chamber, 7...Shift shaft, 10...Air tank, 11, 12...Magnetic valve, 13
...Relay, 14...High-low changeover switch,
15... Relay, 16, 17... Micro switch, 18... Hollow, 19... Alarm buzzer, 20
... Relay, 30 ... Parking brake activation lever,
31...Brake switch.
Claims (1)
速を行う副変速機を備え、この副変速機を駐車ブ
レーキより車軸側に搭載した車両において、 副変速機のシフト位置を検出する手段１６，１
７及び１３，１５と、 駐車ブレーキの作動状態を検出する手段３１
と、 これら両手段の検出信号に基づいて副変速機が
ニユートラル状態にありかつ駐車ブレーキが作動
しているときに警報手段１９を作動させるリレー
回路２０とを備えたことを特徴とする副変速機の
ニユートラル警報装置。[Scope of Claim for Utility Model Registration] In a vehicle that is equipped with an auxiliary transmission that performs high-low two-speed shifting in addition to the number of gears of the main transmission, and this auxiliary transmission is mounted on the axle side of the parking brake, Means 16,1 for detecting the shift position
7, 13, 15, and means 31 for detecting the operating state of the parking brake.
and a relay circuit 20 that activates the warning means 19 when the sub-transmission is in a neutral state and the parking brake is activated based on the detection signals from both of these means. neutral alarm system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987044584U JPH0522677Y2 (en) | 1987-03-26 | 1987-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987044584U JPH0522677Y2 (en) | 1987-03-26 | 1987-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63152050U JPS63152050U (en) | 1988-10-05 |
| JPH0522677Y2 true JPH0522677Y2 (en) | 1993-06-10 |
Family
ID=30862535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987044584U Expired - Lifetime JPH0522677Y2 (en) | 1987-03-26 | 1987-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0522677Y2 (en) |
-
1987
- 1987-03-26 JP JP1987044584U patent/JPH0522677Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63152050U (en) | 1988-10-05 |
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