IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0127696
(2002-04-23)
|
우선권정보 |
JP-0062777 (2002-03-08); JP-0127591 (2001-04-25) |
발명자
/ 주소 |
- Ohishi, Yuji
- Morita, Hikaru
- Nakazawa, Chiharu
- Hiwatashi, Daisuke
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
17 |
초록
▼
In brake liquid pressure control unit for an on-vehicle device and its manufacturing method, a lid member constituting at least one reservoir together with a cylindrically shaped hole is formed substantially in a bell shape, the lid member comprising a cylindrical wall projected externally from one
In brake liquid pressure control unit for an on-vehicle device and its manufacturing method, a lid member constituting at least one reservoir together with a cylindrically shaped hole is formed substantially in a bell shape, the lid member comprising a cylindrical wall projected externally from one of four base surfaces expect mutually opposing first and second base surface of a base block of a rectangular parallelopiped on which the cylindrically shaped hole is formed.
대표청구항
▼
1. A brake liquid pressure control unit for an on-vehicle device, comprising:a base block in a substantially rectangular parallelopiped comprising four base surfaces; at least one reservoir disposed on the base block to temporarily reserve a working liquid in a liquid pressure circuit; a motor to op
1. A brake liquid pressure control unit for an on-vehicle device, comprising:a base block in a substantially rectangular parallelopiped comprising four base surfaces; at least one reservoir disposed on the base block to temporarily reserve a working liquid in a liquid pressure circuit; a motor to operate a pump to supply the working liquid; an electronic printed circuit board block to control at least an electromagnetic valve, the motor and electronic printed circuit board block being attached onto mutually opposing first and second base surfaces of the four base surfaces of the base block, respectively; a cylindrically shaped hole formed on one of the four base surfaces of the base block except the first and second base surfaces; and a lid member constituting the reservoir together with the cylindrically shaped hole, the lid member comprising a substantially cylindrical wall projected externally from the one of the four base surfaces of the base block on which the cylindrically shaped hole is formed and being only partially staked to the one of the four base surfaces of the base block on which the cylindrically shaped hole is formed. 2. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 1, wherein the cylindrically shaped hole and lid member are disposed on at least one of the four base surfaces of the base block which provides at least one of upper and lower surfaces of the base block when the base block is mounted in a vehicle body.3. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 2, wherein the cylindrically shaped hole and the lid member are disposed on one of the upper and lower base surfaces which is opposite to the base surface on which a distribution tube connection plug is arranged.4. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 1, further comprising a plurality of approximately arc shaped engagement portions to engageably retain the lid member thereon by partial staking an opening edge of the cylindrically shaped hole along an outer periphery of the lid member.5. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 4, the engagement portions are disposed on predetermined positions of the base block except surrounding areas of the first and second base surfaces of the base block.6. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 4, wherein a pair of reservoirs are arranged on one of the base surfaces of the base block, each end edge of mutually adjacent engagement portions of the respective reservoirs is formed to constitute a single straight line approximately along a tangent line direction of the corresponding cylindrically shaped hole, the end edges of both of the engagement portions constituting the straight line are tilted at a set angle (Θ) toward a side at which non staked portions of both of the reservoirs are mutually faced with respect to another straight line along either the first or second base surface.7. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 3, wherein a pair of reservoirs are aligned on the lower base surface of the base block, with each cylindrical wall of the respective lid members projected externally from the lower base surface of the base block.8. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 7, wherein each end edge of a pair of approximately arc shaped engagement portions of the base block for the respective lid members formed by the partial staking runs in parallel to each of the first and second base surfaces of the base block.9. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 7, wherein each virtual straight line is running on each of end edges, of a pair of approximately arc shaped engagement portions of the base block, each end edge being faced in the same direction, and the pair of approximately arc shaped engagement portions of the base block for the respective lid members formed by the partial staking is tilted by a predetermined angle with respect to each of the first and second base surfaces of the base block.10. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 9, wherein a first one of two virtual straight lines running on each of end edges, each end edge being faced in the same direction, of the pair of the approximately arc shaped engagement portions of the base block for one of the pair of the lid members formed by the partial staking is tilted by the predetermined angle θ and a second one of the two virtual straight lines running on each of end edge, each end edge being faced in the same direction, of the pair of the approximately arc shaped engagement portions of the base block for the other of the pair of the lid members formed by the partial staking is tilted by the predetermined angle θ, the first straight line being intersected to the second straight line and forming a triangular space on the corresponding base surface of the base block together with an end line of either one of the first or second base surface of the base block.11. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 10, wherein an insulator rubber is attached onto the triangular space of the surface of the base block on which the pair of the reservoirs are formed.12. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 11, wherein the pair of the approximately arc shaped engagement portions are divided into two pairs of the approximately arc shaped engagement portions.13. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 11, wherein each end edge is formed along a radial direction of the corresponding one of the cylindrically shaped holes.14. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 1, wherein the lid member comprises a flange portion with a tapered surface which is extended outwardly from an end of the cylindrical wall in a circular shape and a ring-shaped groove formed on an outer periphery of a tip of the flange portion.15. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 1, wherein the lid member comprises a ring shaped groove formed on an outer periphery of an end of the cylindrical wall.16. A brake liquid pressure control unit for an on-vehicle device, comprising:base block means in a substantially rectangular parallelopiped comprising four base surfaces; working liquid reserving means disposed on the base block for temporarily reserving a working liquid in a liquid pressure circuit; operating means for operating a pump to supply the working liquid: electronic printed circuit board block means for controlling at least an electromagnetic valve, the operating means and electronic printed circuit board block means being attached onto mutually opposing first and second base surfaces of the base block means, respectively; cylindrically shaped hole means formed on one of the four base surfaces of the base block means except the first and second base surfaces; and lid member means constituting the reserving means together with the cylindrically shaped hole means, the lid member means comprising a cylindrical wall projected externally from the one of the four base surfaces of the base block on which the cylindrically shaped hole means and being only partially staked to the one of the four base surfaces of the base block on which the cylindrical shaped hole means is formed. 17. A brake liquid pressure control unit for an on-vehicle device, comprising:a base block in a substantially rectangular parallelepiped comprising four base surfaces; at least one reservoir disposed on the base block to temporarily reserve a working liquid in a liquid pressure circuit; a motor to operate a pump to supply the working liquid: an electronic printed circuit board block to control at least an electromagnetic valve, the motor and electronic printed circuit board block being attached onto mutually opposing first and second base surfaces of the four base surfaces of the base block, respectively; a cylindrically shaped hole formed on one of the four base surfaces of the base block except the first and second base surfaces; a lid member constituting the reservoir together with the cylindrically shaped hole, the lid member comprising a substantially cylindrical wall projected externally from the one of the four base surfaces of the base block on which the cylindrically shaped hole is formed; and a plurality of approximately arc shaped engagement portions to engageably retain the lid member thereon by performing a partial staking for an opening edge of the cylindrically shaped hole along an outer periphery of the lid member, the engagement portions being disposed on predetermined positions of the base block except surrounding areas of the first and second base surfaces of the base block and a diameter of a virtual circle formed by an arc of each engagement portion being set to be larger than a width between of the first and second base surfaces of the base block. 18. A brake liquid pressure control unit for an on-vehicle device, comprising:a base block in a substantially rectangular parallelepiped comprising four base surfaces; at least one reservoir disposed on the base block to temporarily reserve a working liquid in a liquid pressure circuit; a motor to operate a pump to supply the working liquid: an electronic printed circuit board block to control at least an electromagnetic valve, the motor and electronic printed circuit board block being attached onto mutually opposing first and second base surfaces of the four base surfaces of the base block, respectively; a cylindrically shaped hole formed on one of the four base surfaces of the base block except the first and second base surfaces; a lid member constituting the reservoir together with the cylindrically shaped hole, the lid member comprising a substantially cylindrical wall projected externally from the one of the four base surfaces of the base block on which the cylindrically shaped hole is formed; and a plurality of approximately arc shaped engagement portions to engageably retain the lid member thereon by performing a partial staking for an opening edge of the cylindrically shaped hole along an outer periphery of the lid member, each end edge of the respective arc shaped engagement portions being formed in such a manner that a central angle with respect to a first arc placed at a radially inner region of each engagement portion is set to be wider than another center angle with respect to a second arc placed at a radially maximum outer portion of the same engagement portion. 19. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 1, wherein the cylindrically shaped hole and the lid member constituting the reservoir are disposed on the one of the four base surfaces of the base block which provides a lower surface of the base block when the base block is mounted in a vehicle body.20. A brake liquid pressure control unit for an on-vehicle device as claimed in claim 19, wherein engagement portions are disposed on predetermined positions of the base block except surrounding areas of the first and second base surfaces of the base block.21. A brake liquid pressure control unit for an on-vehicle device, comprising:a base block in a substantially rectangular parallelepiped comprising four base surfaces; at least one reservoir disposed on the base block to temporarily reserve a working liquid in a liquid pressure circuit; a motor to operate a pump to supply the working liquid; an electronic printed circuit board block to control at least an electromagnetic valve, the motor and electronic printed circuit board block being attached onto mutually opposing first and second base surfaces of the base block, respectively; a cylindrically shaped hole formed on one of the four base surfaces of the base block except the first and second base surfaces; a lid member constituting the reservoir together with the cylindrically shaped hole, the lid member comprising a substantially cylindrical wall projected externally from the one of the four base surfaces of the base block on which the cylindrically shaped hole is formed and being only partially staked to the one of the four base surfaces of the base block on which the cylindrically shared hole is formed, wherein the cylindrically shaped hole and the lid member constituting the reservoir being disposed on the one of the four base surfaces of the base block which provides a lower surface of the base block when the base block is mounted in a vehicle body; and a plurality of approximately arc shaped engagement portions that engageably retain the lid member thereon by performing a partial staking for an opening edge of the cylindrically shaped hole along an outer periphery of the lid member. 22. A brake liquid pressure control unit for an on-vehicle device, comprising:a base block in a substantially rectangular parallelepiped comprising four base surfaces; at least one reservoir disposed on the base block to temporarily reserve a working liquid in a liquid pressure circuit; a motor to operate a pump to supply the working liquid; an electronic printed circuit board block to control at least an electromagnetic valve, the motor and electronic printed circuit board block being attached onto mutually opposing first and second base surfaces of the base block, respectively; a cylindrically shaped hole formed on one of the four base surfaces of the base block except the first and second base surfaces; a lid member that forms the reservoir together with the cylindrically shaped hole, the lid member comprising a substantially cylindrical wall projected externally from the one of the four base surfaces of the base block on which the cylindrically shaped hole is formed; and at least two separate engagement portions formed along a periphery of the cylindrically shaped hole, the engagement portions partially staking the lid member to the base surface on which the cylindrically shaped hole is formed. 23. A brake liquid pressure control unit for an on-vehicle device, comprising:a base block in a substantially rectangular parallelopiped comprising four base surfaces; at least one reservoir disposed on the base block to temporarily reserve a working liquid in a liquid pressure circuit; a motor to operate a pump to supply the working liquid; an electronic printed circuit board block to control at least an electromagnetic valve, the motor and electronic printed circuit board block being attached onto mutually opposing first and second base surfaces of the four base surfaces of the base block, respectively; a cylindrically shaped hole formed on one of the four base surfaces of the base block except the first and second base surfaces; and a lid member constituting the reservoir together with the cylindrically shaped hole, the lid member comprising a substantially cylindrical wall projected externally from the one of the four base surfaces of the base block on which the cylindrically shaped hole is formed and being only partially staked to the one of the four base surfaces of the base block on which the cylindrically shaped hole is formed, wherein the base block comprises engagement portions along a periphery of the cylindrically shaped hole that engage a flange along an outer periphery of the lid member to partially stake the lid member to the base block. 24. The brake liquid pressure control unit as claimed in claim 23, wherein no engagement portions are formed along a periphery of the cylindrically shaped hole proximate to the first and second base surfaces of the base block.25. The brake liquid pressure control unit as claimed in claim 1, wherein the lid member further comprises a bottom end portion formed in an inverted bell shape.26. The brake pressure liquid control unit according to claim 16, wherein the lid member means further comprises a bottom end portion formed in a substantially inverted bell shape.27. The brake liquid pressure control unit according to claim 21, wherein the lid member further comprises a bottom end portion formed in a substantially inverted bell shape.28. The brake liquid pressure control unit as claimed in claim 22, wherein the lid member further comprises a bottom end portion formed in an inverted bell shape.29. The brake liquid pressure control unit as claimed in claim 23, wherein the lid member further comprises a bottom end portion formed in an inverted bell shape.
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