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In an occupant detecting apparatus for detecting an occupant seated on a passenger seat of a vehicle with an airbag for the occupant, a load sensor is provided in a bottom part of the seat. A plurality of first electric field sensors are provided in the bottom part of the seat, and a plurality of se

In an occupant detecting apparatus for detecting an occupant seated on a passenger seat of a vehicle with an airbag for the occupant, a load sensor is provided in a bottom part of the seat. A plurality of first electric field sensors are provided in the bottom part of the seat, and a plurality of second electric field sensors are provided in a rear part of the seat. An airbag inflating permission control unit permits inflation of the airbag in accordance with output signals of the load sensor and the first and second electric field sensors.

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In an occupant detecting apparatus for detecting an occupant seated on a passenger seat of a vehicle with an airbag for the occupant, a load sensor is provided in a bottom part of the seat. A plurality of first electric field sensors are provided in the bottom part of the seat, and a plurality of se

In an occupant detecting apparatus for detecting an occupant seated on a passenger seat of a vehicle with an airbag for the occupant, a load sensor is provided in a bottom part of the seat. A plurality of first electric field sensors are provided in the bottom part of the seat, and a plurality of second electric field sensors are provided in a rear part of the seat. An airbag inflating permission control unit permits inflation of the airbag in accordance with output signals of the load sensor and the first and second electric field sensors. ng an outer bearing surface, wherein said sleeve defines a bearing member for a reaction member bearing on at least one leg and on the bearing surface of said sleeve to inhibit rotation of said legs during rotation of said threaded rod, and wherein said sleeve includes an outer peripheral surface which defines an annular groove. 5. A pulling tool as claimed in claim 4, wherein said sleeve comprises a nut that is screwed onto said threaded rod. 6. A pulling tool for removing a mechanical part that is force-fitted or stuck on a shaft, said pulling tool comprising: a body portion; a threaded rod received in said body portion, said threaded rod having a first end defining a driving portion, and a second end for bearing on a face of the shaft; a plurality of legs pivotally connected to said body portion, each of said legs having a free end for bearing on a face of the mechanical part to be removed, wherein said threaded rod is capable of moving axially relative to said body and said legs; and a sleeve mounted on said threaded rod separately from said body portion, said sleeve having an outer bearing surface, wherein said sleeve defines a bearing member for a reaction member bearing on at least one leg and on the bearing surface of said sleeve to inhibit rotation of said legs during rotation of said threaded rod, and wherein a position of said sleeve on said threaded member is adjustable independently of a position of said body portion. 7. A pulling tool as claimed in claim 6, wherein said sleeve has a length that is greater than its maximum diameter. 8. A pulling tool as claimed in claim 6, wherein an outer surface of said sleeve is generally cylindrical and has at least one flat surface. 9. A pulling tool as claimed in claim 6, wherein an outer peripheral surface of said sleeve is essentially polyhedral. 10. A pulling tool as claimed in claim 6, wherein said sleeve is a cylindrical member formed with a blind hole for receiving a rotation-inhibiting member. 11. A pulling tool as claimed in claim 6, wherein said sleeve comprises a cylindrical member, and a projecting lug that projects from the outer surface of said sleeve, said projecting lug having a drilled hole for receiving a rotation inhibiting member. 12. A pulling tool as claimed in claim 6, wherein said sleeve comprises a nut that is screwed onto said threaded rod. aligning the two lock blocks of the relating lever with the two lock slots of the control lever and pressing the spring of the relating lever against the control lever; and d) inserting the two lock blocks of the relating lever into the two lock slots of the control lever, and inserting the spring of the relating lever into the positioning hole of the control lever, whereby the first and second gripping jaws face toward each other. 2. The method for assembling a heat sink structure according to claim 1, wherein the control lever is formed as a single piece. 3. The method for assembling a heat sink structure according to claim 1, wherein the relating lever is formed as a single piece. 4. The method for assembling a heat sink structure according to claim 1, wherein the step of inserting further includes the spring providing an automatic restoring operation.