1. A measuring wheel comprising:
a handle set including a handle and a panel mounted on the handle;
a first rod mounted on the handle set and having a first seat mounted on the first rod, the first seat including
a first body disposed on the end of the first seat and having an assembling groove defined in a side of the first body and a supporting recess defined in a bottom surface of the first body and communicating with the assembling groove;
a first pivotal portion extending from the first body; and
a buckling unit pivotally mounted in the assembling groove in the first body and located adjacent to the bottom surface of the first body; and
a second rod pivotally connected with the first rod and having a second seat mounted on the second rod and pivotally assembled with the first seat of the first rod, the second seat including
a second body disposed on the end of the second rod and having a supporting block protruding from the second body for correspondingly inserting into the supporting recess, the supporting block having a buckling groove defined in one side of the supporting block for selectively receiving the buckling unit; and
a second pivotal portion extending from a top of the second seat and pivotally connected to the first pivotal portion; and
a wheel seat mounted on the second rod and located opposite to the second seat; and
a wheel rotatably mounted on the wheel seat.
2. The measuring wheel as claimed in claim 1, wherein the buckling unit has one end aligning with an outer periphery of the supporting recess in the bottom surface of the first body.
3. The measuring wheel as claimed in claim 2, wherein the buckling unit includes
a pivotal board pivotally mounted on the first body and received in the assembling groove;
a resilient member mounted on the pivotal board;
a pivotal clasp pivotally mounted on the pivotal board, abutting against the resilient member, having one end aligning with the bottom surface of the first body, and having a protrusion inwardly extending from the end of the pivotal clasp for corresponding to the buckling groove in the second body; and
a pintle mounted through the pivotal board and the pivotal clasp for pivotally assembling the pivotal board and the pivotal clasp with the first body.
4. The measuring wheel as claimed in claim 3, wherein the wheel seat has a stand pivotally mounted on one side of the wheel seat.
5. The measuring wheel as claimed in claim 4 further comprising an ear having two ends respectively and pivotally connected to two sides of the wheel seat.
6. The measuring wheel as claimed in claim 1, wherein the buckling unit includes
a pivotal board pivotally mounted on the first body and received in the assembling groove;
a resilient member mounted on the pivotal board;
a pivotal clasp pivotally mounted on the pivotal board, abutting against the resilient member, having one end aligning with the bottom surface of the first body, and having a protrusion inwardly extending from the end of the pivotal clasp for corresponding to the buckling groove in the second body; and
a pintle mounted through the pivotal board and the pivotal clasp for pivotally assembling the pivotal board and the pivotal clasp with the first body.
7. The measuring wheel as claimed in claim 1, wherein the wheel seat has a stand pivotally mounted on one side of the wheel seat.
8. The measuring wheel as claimed in claim 2, wherein the wheel seat has a stand pivotally mounted on one side of the wheel seat.
9. The measuring wheel as claimed in claim 6, wherein the wheel seat has a stand pivotally mounted on one side of the wheel seat.
10. The measuring wheel as claimed in claim 1 further comprising an ear having two ends respectively and pivotally connected to two sides of the wheel seat.
11. The measuring wheel as claimed in claim 2 further comprising an ear having two ends respectively and pivotally connected to two sides of the wheel seat.
12. The measuring wheel as claimed in claim 3 further comprising an ear having two ends respectively and pivotally connected to two sides of the wheel seat.
13. The measuring wheel as claimed in claim 6 further comprising an ear having two ends respectively and pivotally connected to two sides of the wheel seat.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A power converting transformer, comprising:
a substantially rectangular flat I-core extending along an x-y plane in an xyz orthogonal coordinate system; and
an E-core including a substantially rectangular flat base portion extending along the x-y plane, a central leg portion installed upright at a center of the base portion to extend in a z-direction, and a pair of outer leg portions installed upright in opposite end portions of the base portion in a y-direction to extend in the z-direction, the I-core placed on the outer leg portions,
wherein the I-core includes a pair of fixing grooves provided at centers on opposite side surfaces of the I-core in the y-direction, the fixing grooves extending through the I-core in the z-direction,
the E-core includes a pair of fixing recess portions provided at x-direction centers of the y-direction opposite end portions of the base portion on a surface opposite from a surface of the base portion facing the I-core,
the I-core and the E-core are pressed and fixed to each other by a fixing spring wrapped around the I-core and the E-core through the fixing grooves and the fixing recess portions, and
an x-direction length of the E-core is shorter than an x-direction length of the I-core, a y-direction length of the E-core being shorter than or equal to a y-direction distance between the fixing grooves of the I-core.
2. The power converting transformer of claim 1, wherein the y-direction distance between the fixing grooves of the I-core is equal to the y-direction length of the E-core.
3. The power converting transformer of claim 1, wherein the x-direction length of the I-core is defined by an x-direction length of the E-core, an x-direction length of the fixing recess portions of the E-core, an x-direction length of the fixing grooves of the I-core and an x-direction width of the fixing spring.
4. The power converting transformer of claim 2, wherein the x-direction length of the I-core is defined by an x-direction length of the E-core, an x-direction length of the fixing recess portions of the E-core, an x-direction length of the fixing grooves of the I-core and an x-direction width of the fixing spring.
5. The power converting transformer of claim 3, wherein the x-direction length of the I-core is larger than or equal to the x-direction length of the E-core added by the x-direction length of the fixing recess portions of the E-core and the x-direction length of the fixing grooves of the I-core and subtracted by the double of the x-direction width of the fixing spring.
6. The power converting transformer of claim 4, wherein the x-direction length of the I-core is larger than or equal to the x-direction length of the E-core added by the x-direction length of the fixing recess portions of the E-core and the x-direction length of the fixing grooves of the I-core and subtracted by the double of the x-direction width of the fixing spring.
7. The power converting transformer of claim 1, wherein the I-core includes a fit-in groove into which the fixing spring is fitted, the fit-in groove formed on a surface of the I-core opposite from a surface of the I-core facing the E-core, the fit-in groove extending in the y-direction to interconnect the fixing grooves.
8. The power converting transformer of claim 1, wherein the E-core includes an anti-short-circuit groove provided in the base portion near a circumferential edge of the central leg portion to prevent the E-core from being short-circuited with a coil pattern of a wiring board interposed between the I-core and the E-core.
9. A vehicle headlight comprising the power converting transformer of claim 1.
10. A motor vehicle comprising the vehicle headlight of claim 9.
11. A power converting transformer, comprising:
a substantially rectangular flat I-core extending along an x-y plane in an xyz orthogonal coordinate system; and
an E-core including a substantially rectangular flat base portion extending along the x-y plane, a central leg portion installed upright at a center of the base portion to extend in a z-direction, and a pair of outer leg portions installed upright in opposite end portions of the base portion in a y-direction to extend in the z-direction, the I-core placed on the outer leg portions,
wherein the I-core includes a fit-in groove into which a fixing spring is fitted, the fit-in groove formed on a surface of the I-core opposite from a surface of the I-core facing the E-core,
the E-core includes a pair of fixing recess portions provided at x-direction centers of the y-direction opposite end portions of the base portion on a surface opposite from a surface of the base portion facing the I-core,
the I-core and the E-core are pressed and fixed to each other by the fixing spring wrapped around the I-core and the E-core through the fit-in groove and the fixing recess portions, and
an x-direction length of the E-core is shorter than an x-direction length of the I-core, a y-direction length of the E-core being shorter than a y-direction length of the I-core.