1. A pole grip for attaching to a pole having a pole axis, of the type comprising walking sticks, trekking poles, downhill ski poles, cross-country ski poles and Nordic walking poles, and for releasably coupling to a hand retaining device, such as a hand strap or glove, via a loop structure that is loop-like, ring-like or eyelet-like on said hand retaining device, comprising:
a grip body having a hand side, a top region and a bottom region, with a hole extending from the bottom region along the pole axis and being sized to receive a pole end,
a hook-like device for fastening a hand-retaining device, the hook-like device being disposed in the top region of the grip body on the hand side, the hook-like device comprising a retaining peg having a first end secured to the grip body and a second free end, and being oriented essentially parallel to the pole axis but being offset on the hand side away from the grip body with the second free end forming an introduction slot with the grip body, wherein a cross section of the peg is sized to receive the loop structure of a hand retaining device and the depth of the introduction slot is greater than a width and a thickness of the retaining peg,
displaceable or rotatable latching-in means disposed adjacent the hook-like device such that the loop structure of a hand retaining device, when pushed onto the free end of the hook-like device, is secured onto the hook-like device with a self latching action, and
an elastically biased arresting block having a latching-in restraining nose, the arresting block being accommodated in a recess formed in the top region of the grip body,
wherein the arresting block as a whole is, or the restraining nose arranged therein is, biased against the hook-like device via a resiliently elastic element, and
wherein the arresting block is coupled to at least one activating button and the arresting block or the restraining nose is moveable against the force of the resiliently elastic element by manual activation of the button, whereby the self latching mechanism is released.
2. The pole grip as claimed in claim 1, wherein the hook-like device has a width in the range of 3-15 mm, the hook-like device having an essentially oval or lenticular cross section, at least in certain sections perpendicular to the pole axis, in which case a short, main axis is directed towards the grip body.
3. The pole grip as claimed in claim 1, wherein the introduction slot has a depth in the range of 5-30 mm.
4. The pole grip as claimed in claim 1, wherein the hook-like device is formed integrally as a part of the grip body.
5. The pole grip as claimed in claim 1, wherein the hook-like device is a separate component which is fastened on the grip body via a fastening plate by means of which the hook-like device can be fastened on the grip body from the hand side.
6. The pole grip as claimed in claim 1, wherein the recess is provided in the grip body from the hand side andor from above.
7. The pole grip as claimed in claim 6, wherein the arresting block as a whole is, or retaining means arranged therein are, guided so as to be displaceable parallel to the direction of the recess, or in the horizontal direction, and it is biased against the hook-like device, which is arranged in front of the recess, via a spring.
8. The pole grip as claimed in claim 1, wherein the arresting block can be displaced from the outside, counter to the bias force, via the at least one actuating button, the self latching mechanism being released in the process, in which case, for this purpose, slots are provided laterally, in the grip body, in relation to the recess and, via these slots, actuating buttons arranged on both sides are operatively connected to the arresting block.
9. The pole grip as claimed in claim 1, wherein provided in or on the arresting block is the at least one activating button by way of which a retaining means arranged in the arresting block, in the form of a pin, can be displaced counter to the bias force, the self-latching mechanism being released in the process.
10. The pole grip as claimed in claim 1, wherein provided in or on the arresting block is the at least one activating button by way of which the arresting block or a retaining means arranged in the arresting block, can be displaced, the self-latching mechanism being released in the process, it being the case that the activating button is arranged on the top region and is directed toward the hook-like device, wherein the activating button has lateral protrusions which project on both sides of the hook-like device and essentially surround the tip of the hook-like device laterally.
11. The pole grip as claimed in claim 1, wherein the recess in the grip body open at the top and from the hand side and the arresting block is biased in the downward direction for emergency activation via an axial helical spring which is arranged in a cavity of the pole grip and the stressing of which can be adjusted preferably via an adjusting nut.
12. The pole grip as claimed in claim 1, wherein the arresting block is a displaceably andor rotatably mounted element, on or in which latching-in means are arranged, wherein the element is biased in the downward direction for emergency activation via an axial helical spring which is arranged in a cavity of the pole grip and the stressing of which can be adjusted.
13. The pole grip as claimed in claim 11, wherein the arresting block is mounted in a rotatable manner about a horizontal axial element, which is arranged between the hook-like device and grip body essentially parallel to the plane of the slot, and it is biased against the hook-like device, arranged on the hand side, via a spring.
14. The pole grip as claimed in claim 13, wherein the arresting block is tiltable from the outside, counter to the spring force, via at least one actuating button, the self-latching mechanism being released in the process.
15. The pole grip as claimed in claim 1, wherein the restraining nose has a beveled flank toward the top, as seen in the direction of introduction, and which, in the position in which it is braced against the hook-like device, defines, in the downward direction, a region for the loop-like, ring-like or eyelet-like device which is enclosed counter to a force.
16. The pole grip as claimed in claim 15, wherein the restraining nose is arranged on or in the arresting block.
17. The pole grip as claimed in claim 15, wherein the restraining nose is arranged on the hook-like device.
18. The pole grip as claimed in claim 1, wherein the latching-in means are designed such that, in the event of loading in the direction of the opening of the hook-like device which goes beyond a normal usage force, emergency release of the loop-like, ring-like or eyelet-like device takes place.
19. The pole grip as claimed in claim 15, wherein the restraining nose is mounted in a rotatable manner about a preferably horizontal axial element arranged essentially perpendicularly to the opening direction of the recess, rotation in the upward direction, to release the region in the upward direction, being possible counter to a defined force.
20. The pole grip as claimed in claim 15, wherein the restraining nose is mounted in a displaceable manner, in which case displacement in the upward direction to release the region is possible counter to a defined force, and the force is ensured via a spring or a resilient element.
21. The pole grip as claimed in claim 11, wherein the restraining nose is braced by way of a leg spring or by way of a helical spring, or by way of an elastomer spring, into the rotary position, or displacement position, in which it closes off the region, this bracing being adjustable, in which case safety activation takes place only under a force of more than 80-250 N.
22. The pole grip as claimed in claim 1, wherein safety activation is realized via a yielding action in the region of the hook-like device.
23. The pole grip as claimed in claim 22, wherein the hook-like device can be displaced or tilted about an axial element, counter to a force, in the direction of the hand side to release the region.
24. The pole grip as claimed in claim 22, wherein a resilient region is provided on the hook-like device on the slot side, this resilient region being realized via a leaf spring or an elastic portion.
25. The pole grip as claimed in claim 1, having a hand-retaining device which can be fastened on the hand or a glove which has a movable andor flexible loop between the thumb and forefinger, the hand-retaining device being provided for fastening on the hook-like device of a pole grip as claimed in claim 1.
26. The pole grip as claimed in claim 1, wherein the introduction slot has a depth in the range of 10-15 mm.
27. The pole grip as claimed in claim 1, wherein the hook-like device has a width in the range of 4-8 mm, the hook-like device having an essentially oval or lenticular cross section.
28. The pole grip as claimed in claim 1, wherein the hook-like device is a cutout in the grip body.
29. A pole grip for attaching to a pole having a pole axis, of the type comprising walking sticks, trekking poles, downhill ski poles, cross-country ski poles and Nordic walking poles, and for releasably coupling to a hand retaining device, such as a hand strap or glove, via a loop structure that is loop-like, ring-like or eyelet-like on said hand retaining device, comprising:
a grip body having a hand side, a top region and a bottom region, with a hole extending from the bottom region along the pole axis and being sized to receive a pole end,
a hook-like device for fastening a hand-retaining device, the hook-like device comprising a retaining peg having a first end secured to the grip body and a second free end, and being oriented essentially parallel to the pole axis but being offset on the hand side away from the grip body with the second free end forming an introduction slot with the grip body, wherein a cross section of the peg is sized to receive the loop structure of a hand retaining device and the depth of the introduction slot is greater than a width and a thickness of the retaining peg,
moveable latching-in means disposed adjacent the hook-like device such that the loop structure of a hand retaining device, when pushed onto the free end of the hook-like device, is secured onto the hook-like device with a self-latching action, and
an elastically biased arresting block having a latching-in restraining nose, the arresting block being accommodated in a recess formed in the top region of the grip body,
wherein the arresting block as a whole is, or the restraining nose arranged therein is, biased against the hook-like device via a resiliently elastic element, and
wherein the arresting block is coupled to at least one activating button and the arresting block or the restraining nose is moveable against the force of the resiliently elastic element by manual activation of the button, whereby the self-latching mechanism is released.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A control system for an electric motor for driving an electric vehicle while an output of said electric motor is controlled on an accelerator opening degree corresponding to a displacement quantity of an accelerator operation member, said control system comprising an acceleration sensor to output an acceleration signal having a magnitude corresponding to said accelerator opening degree by detecting said accelerator opening degree; rotational speed detection means to detect a rotational speed of said electric motor; steady-state-time drive current control means to control a drive current of said electric motor in accordance with said acceleration signal; lock state judgment means to judge that said electric motor is in the lock state when the state where said rotational speed detected by said rotational speed detection means is equal to or less than a set lock start rotational speed while said accelerator opening degree detected from said acceleration signal is equal to or more than a set lock judgment opening degree continues during a set lock start judgment time and to judge that said lock state is released when the state where said accelerator opening degree is less than said lock judgment opening degree or the state where said rotational speed is equal to or more than a lock release rotational speed set at a value higher than said lock start rotational speed continues for a set lock release judgment time; and lock-time drive current control means to perform a drive current limit control in which said drive current is reduced from a value determined by said steady-state-time drive current control means to a lock-time limit value so as to limit the maximum value of said drive current to a value equal to or less than the lock-time limit value when it is judged by said lock state judgment means that the electric motor is in the lock state and to release said drive current limit control whereby said drive current is increased from said value equal to or less than said lock-time limit value to said value determined by said steady-state-time drive current control means when it is judged that said lock state is released.
2. A control system for an electric motor for driving an electric vehicle as set forth in claim 1 and wherein when said drive current limit control is made, said drive current is gradually reduced over a lock start control time from the value determined by said steady-state-time drive current control means to said lock-time limit value and when said drive current limit control is released, said drive current is gradually increased over a lock release control time from said lock-time limit value to said value determined by said steady-state-time drive current control means.
3. A control system for an electric motor for driving a brushless DC electric vehicle including a rotor having a field system and a stator having armature coils of n phases (n is two or more integers) while an output of said electric motor is controlled on an accelerator opening degree corresponding to a displacement quantity of an accelerator operation member, said control system comprising an acceleration sensor to output an acceleration signal having a magnitude corresponding to said accelerator opening degree by detecting said accelerator opening degree; rotational speed detection means to detect a rotational speed of said electric motor; n position sensors to generate an outputs having a level varying whenever a polarity of magnetic poles directly or indirectly detected by said magnetic poles of said rotor relative to armature coils of n phases of said stator, respectively changes; a switch circuit provided between a DC power supply and said armature coils to switch the phase of the armature coil through which a drive current flows from said DC power supply; steady-state-time drive current control means having duty factor arithmetical operation means to arithmetically operate a duty factor of said drive current for said acceleration signal and switch control means to control said switch circuit so that there flows through the armature coil of phase determined in accordance with an output of said position sensors the drive current of PWM waveform intermittent in the duty factor arithmetically operated by said duty factor arithmetical operation means whereby said rotor rotates; lock state judgment means to judge that said electric motor is in the lock state when the state where said rotational speed detected by said rotational speed detection means is equal to or less than a set lock start rotational speed while said accelerator opening degree detected from said acceleration signal is equal to or more than a set lock judgment opening degree continues for a set lock start judgment time and to judge that said lock state is released when the state where said accelerator opening degree is less than said lock judgment opening degree or the state where said rotational speed is equal to or more than a lock release rotational speed set at a value higher than said lock start rotational speed continues for a set lock release judgment time; and lock-time drive current control means to perform a drive current limit control in which said duty factor of said drive current is reduced from a value arithmetically operated by said duty factor arithmetical operation means to a lock-time limit duty factor so that the maximum value of said drive current is limited to the value equal to or less than said lock-time limit value when it is judged by said lock state judgment means that the electric motor is in the lock state and to release said drive current limit control whereby said duty factor of said drive current is increased from said lock-time limit value to said value determined by said duty factor arithmetical operation means when it is judged that said lock state is released.
4. A control system for an electric motor for driving an electric vehicle as set forth in claim 3 and wherein said lock-time drive current control means to gradually reduce said duty factor of said drive current over a set lock start control time from the value arithmetically operated by said duty factor arithmetical operation means to said lock-time limit duty factor when said drive current limit control is made and to gradually increase said duty factor of said drive current over a set lock release control time from said lock-time limit value to said value arithmetically operated by said duty factor arithmetical operation means when said drive current limit control is released.
5. A control system for an electric motor for driving an electric vehicle as set forth in claim 3 or 4 and further comprising a temperature sensor to detect a temperature of switch elements of said switch circuit and switch circuit protection control means to control said duty factor of said drive current so as to limit said duty factor of said drive current to a value equal to or less than a previously set limit value in spite of a result of judgment of said lock state judgment means when the temperature detected by said temperature sensor exceeds an allowable value.
6. A control system for an electric motor for driving a brushless DC electric vehicle including a rotor having a field system and a stator having armature coils of n phases (n is two or more integers) while an output of said electric motor is controlled on an accelerator opening degree corresponding to a displacement quantity of an accelerator operation member, said control system comprising an acceleration sensor to output an acceleration signal having a magnitude corresponding to said accelerator opening degree by detecting said accelerator opening degree; rotational speed detection means to detect a rotational speed of said electric motor; n position sensors to generate an output having a level varying whenever a polarity of magnetic poles directly or indirectly detected by said magnetic poles of said rotor relative to armature coils of n phases of said stator, respectively changes; a switch circuit provided between a DC power supply and said armature coils to switch the phase of the armature coil through which a drive current flows from said DC power supply; steady-state-time drive current control means having duty factor arithmetical operation means to arithmetically operate a duty factor of said drive current on said acceleration signal and switch control means to control said switch circuit so that there flows through the armature coil of phase determined in accordance with an output of said position sensors the drive current of PWM waveform intermittent in the duty factor arithmetically operated by said duty factor arithmetical operation means whereby said rotor rotates; rotation state judgment means to judge whether said electric motor rotates in the forward direction or not by using the difference of a combination of output states of said n position sensors between the forward rotation of said electric motor and the reverse rotation thereof; lock state judgment means to perform every predetermined time the judgment that said electric motor is in the lock state when the state where it is judged by said rotation state judgment means that said electric motor rotates in the forward direction and said rotational speed is equal to or less than a set lock start rotational speed while said accelerator opening degree detected from said acceleration signal is equal to or more than a set lock judgment opening degree continues for a set lock start judgment time or when it is judged that said electric motor does not rotate in the forward direction while said accelerator opening degree is equal to or more than said lock judgment opening degree continues for a set lock start judgment time and the judgment that said lock state is released when the state where said accelerator opening degree is less than said lock judgment opening degree or the state where said rotational speed is equal to or more than a lock release rotational speed set at a value higher than said lock start rotational speed continues for a set lock release judgment time; and lock time drive current control means to perform a drive current limit control in which the maximum value of said drive current is reduced to a value equal to or less than a lock-time limit value when it is judged that the electric motor is in the lock state and to release said drive current limit control when it is judged that said lock state is released.
7. A control system for an electric motor for driving an electric vehicle as set forth in claim 6 and wherein said rotation state judgment means judges whether said electric motor rotates in the forward direction or not whenever a rising up or a falling down of the output of each of said position sensors is detected.
8. A control system of an electric motor for driving an electric vehicle as set forth in claim 6 and wherein said rotation state judgment means comprises position sensor output pattern storage means to store as a position sensor output pattern a combination of the outputs of said n position sensors which are expressed by 0 or 1 whenever the rising up or the falling down of said outputs of said position sensors is detected; position sensor output pattern judgment means to judge whether the change of the output patter of said position sensors corresponds to that when said electric motor rotates in the forward direction or not by comparing the last output pattern of said position sensors stored in said position sensor output pattern storage means with the present output pattern of said position sensors stored therein whenever the rising up or the falling down of said outputs of said position sensors is detected; and rotational direction judgment means to judge that said electric motor rotates in the forward direction when it is judged by said position sensor output pattern judgment means m times (m is two or more integers) in succession that the change of said position sensor output patter is the one when said electric motor rotates in the forward direction and to judge that said electric motor does not rotate in the forward direction when it is judged by said position sensor output pattern judgment means that the change of said position sensor output pattern is not the one when said electric motor rotates in the forward direction or when it is judged less than m times that the change of said position sensor output patter is the one when said electric motor rotates in the forward direction.
9. A control system for an electric motor for driving an electric vehicle as set forth in claim 6 or 8 and wherein said lock state judgment means comprises accelerator opening degree judgment means to judge whether said accelerator opening degree is equal to or more than a lock judgment opening degree or not; lock mode confirmation means to confirm whether the judgment of the lock mode is already made or not when it is judged by said accelerator opening degree judgment means that said accelerator opening degree is equal to or more than said lock judgment opening degree; unlock mode time rotational direction confirmation means to confirm that whether said electric motor rotates in the forward direction or not is judged by said rotation state judgment means when it is judged by said lock mode confirmation means that said judgment of lock mode is not yet made; unlock-time rotational speed judgment means to judge whether said rotational speed of said electric motor is equal to or less than said lock start rotational speed when it is confirmed by said unlock-mode-time rotational direction confirmation means that the judgment of the forward rotation of said electric motor is made; lock-start-time lapse time judgment means to judge whether a set lock start judgment time elapses or not after the state where it is judged by said unlock-time rotational speed judgment means that said rotational speed is equal to or less than said lock start rotational speed or the state where it is judged by said first rotational direction confirmation means that said electric motor does not rotate in the forward direction arises; lock-mode-time rotational direction confirmation means to confirm whether it is judged or not by said rotation state judgment means that said electric motor rotates in the forward direction is judged when it is confirmed by said lock mode confirmation means that the judgment of lock mode is already made; lock-time rotational speed judgment means to judge whether the rotational speed of said electric motor is equal to or more than the lock release rotational speed set at the value higher than said lock start rotational speed or not when it is confirmed by said lock-mode-time rotational direction confirmation means that the judgment of the forward rotation of said electric motor is made; lock-release-time lapse time judgment means to judge whether the set lock release judgment time elapses or not after the state where it is confirmed by said lock-time rotational direction confirmation means that it is judged that the electric motor does not rotate in the forward direction or the state where it is judged by said lock-time rotational speed judgment means that said rotational speed is equal to or more than said lock release rotational speed arises; first lock mode judgment means to judge that said electric motor is in the lock mode when it is judged by said lock-start-time lapse time judgment means that said lock-start-time judgment time elapses; second lock mode judgment means to judge that said electric motor is still in the lock mode when it is judged by said lock-time rotational speed judgment means that said rotational speed is less than said lock release rotational speed or when it is judged by said lock-release-time lapse time judgment means that said lock release judgment time does not elapse; first lock mode release means to judge the release of said lock mode when it is judged by said accelerator opening degree judgment means that said accelerator opening degree is less than said lock judgment opening degree; second lock mode release means to judge the release of said lock mode when it is judged that by said unlock-time rotational speed judgment means that said rotational speed exceeds said lock start rotational speed or when it is judged by said lock start-lapse-time lapse time judgment means that said lock start judgment time does not elapse; and third lock mode release means to judge the release of said lock mode when it is judged by said lock-release-time lapse time judgment means that said lock release judgment time elapses.