1. A new kind of bowling roller bag, comprising:
a pull bar,
a base,
two wheels;
wherein the pull bar is hidden or reaches out of the bag, and the wheels are fixed at the lower part of the corner of the base;
and inside the base hang bowling holders that are connected with the inner side of the base with rotatable axes.
2. The bowling roller bag as claimed in claim 1, wherein the bowling holders are connected with the inner side of the base with rotatable axes.
3. (canceled)
4. (canceled)
5. (canceled)
6. A new kind of bowling roller bag, comprising:
a pull bar,
a base,
two wheels;
wherein the pull bar is hidden or reaches out of the bag, and the wheels are fixed at the lower part of the corner of the base;
and at the lower part of the bottom of the base there is a stand support which consists of two stand legs, a supporting base, a switch and a thin steel wire; the supporting base is fixed stably at the external back side of the base; the end of each stand legs is connected with either end of the supporting base; the switch, which can move upwards and downwards, is harnessed at the middle part of the supporting base; and the switch connects with the stand legs with a thin steel wire.
7. The bowling bag as claimed in claim 6, wherein there is an angle between the two connection axis which connect the stand legs with the supporting base.
8. The bowling bag as claimed in claim 6, wherein the thin steel wire connects with the stand legs near places where the stand legs are connected with the supporting base.
9. The bowling roller bag as claimed in claim 1, wherein the bowling holder is a spherical or cambered surface.
10. The bowling roller bag as claimed in claim 2, wherein the bowling holder is a spherical or cambered surface.
11. The bowling roller bag as claimed in claim 1, wherein there are three or more bowling holders in the base.
12. The bowling roller bag as claimed in claim 2, wherein there are three or more bowling holders in the base.
13. The bowling roller bag as claimed in 1, wherein there is a gap between the connection parts where the bowling holders are connected with the inner side of the base.
14. The bowling roller bag as claim 2, wherein there is a gap between the connection parts where the bowling holders are connected with the inner side of the base.
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 battery pack for a power tool, comprising:
a casing within which a rechargeable cell or cells is or are housed,
a receiving bay formed in the casing and into which slide-in parts of the power tool, or of a recharging stand can be received to thereby retain the battery pack,
a pair of primary electrical contacts in or adjacent to the receiving bay and electrically associated with the rechargeable cell or cells,
a recess that opens into the receiving bay,
a supplementary electrical contact located within the recess, and
a user-manipulable catch located within the recess alongside the supplementary electrical contact.
2. A combination of the battery pack as claimed in claim 1, a power tool and a recharging stand, wherein the power tool includes slide-in parts receivable into the receiving bay and a pair of electrical contacts for connection with the primary electrical contacts of the battery pack respectively, and wherein the recharging stand includes slide-in parts receivable into the receiving bay and a pair of primary and a supplementary electrical contacts for connection with the primary and supplementary electrical contacts of the battery pack respectively.
3. The combination as claimed in claim 2, wherein the catch is configured to co-operate with the power tool, but not with the recharging stand.
4. The combination as claimed in claim 2, wherein the supplementary electrical contact of the battery pack is configured to co-operate with the recharging stand, but not with the power tool.
5. The combination as claimed in claim 2, wherein the catch does not engage with the recharging stand, but the supplementary electrical contact of the battery pack makes contact with the recharging stand.
6. The combination as claimed in claim 2, wherein when the battery pack is attached to the power tool, its catch secures the battery pack to the power tool mechanically, but its supplementary electrical contact does not make electrical contact with the power tool.
7. The combination as claimed in any one of claims 2 to 6, wherein the receiving bay includes rails to be received within tracks of the power tool or recharging stand.
8. The battery pack as claimed in claim 1, wherein the user-manipulable catch includes a trigger accessible from the casing exterior.
9. Th battery pack as claimed in claim 1, wherein the catch includes at least one catch member for mechanical interaction with a co-operable part of a power tool.
10. The battery pack as claimed in claim 1, wherein the primary electrical contacts and the supplementary electrical contact are elongate and parallel with one another.
11. The battery pack as claimed in claim 10, wherein the supplementary electrical contact is located centrally between the primary electrical contacts.
12. The battery pack as claimed in claim 1, wherein the recess is located centrally between the primary electrical contacts.
13. The battery pack as claimed in claim 9, wherein the catch includes a pair of the catch members, and the supplementary electrical contact is located centrally between the two catch members.
14. The battery pack as claimed in claim 1, including a temperature sensor electrically associated with the supplementary electrical contact.