A coupling mechanism for coupling a nozzle shield to a dispenser housing using interacting hook members and axle members. One of the hook members and axle members is carried by the housing. The member which is carried by the housing is preferably movable between a forward and a rear position as by b
A coupling mechanism for coupling a nozzle shield to a dispenser housing using interacting hook members and axle members. One of the hook members and axle members is carried by the housing. The member which is carried by the housing is preferably movable between a forward and a rear position as by being slidable relative to the housing and spring biased as to a rear position. In moving the cover from a closed position to a forward position, the hook member and axle member are in engagement with the member which is movable relative to the housing, preferably moved against the spring bias. For removal of the cover, with the cover approximate the closed position, the member which is carried by the housing is moved relative the housing against the spring bias to a forward position in which the hook member may be disengaged from the axle member.
대표청구항▼
The invention claimed is: 1. A fluid dispenser having a housing, an axle member carried by the housing, the axle member disposed about a longitudinal axis, the axle member being movable relative the housing in a direction normal to the axis between a first rear position and a second forward positio
The invention claimed is: 1. A fluid dispenser having a housing, an axle member carried by the housing, the axle member disposed about a longitudinal axis, the axle member being movable relative the housing in a direction normal to the axis between a first rear position and a second forward position, an axle biasing member urging the axle member to assume the first rear position, the axle member being movable from the first rear position to the second forward position against the bias of the biasing member, a cover coupled to the housing for movement between a closed position in which the dispenser is operative for dispensing fluid and an open position in which access is provided to an interior of the housing, the cover having a rearwardly extending hook member, the hook member removably engaging the axle member, wherein when the hook member engages the axle member: (a) the cover is in the closed position when the axle member is in the first rear position, (b) the axle biasing member in urging the axle member to the first position urges the cover to the closed position, and (c) movement of the cover from the closed position to the open position moves the axle member from the first rear position to the second forward position against the bias of the axle biasing member, the hook member being engageable and disengageable from the axle member for coupling and uncoupling of the cover relative to the housing when the axle member is in the second front position and the cover member is proximate the closed position. 2. A fluid dispenser as claimed in claim 1 wherein the axle member extends side to side across the housing in a horizontal direction, the housing has a forward opening providing access to the interior of the housing, the cover covers the forward opening of the housing in the closed position, the hook member having a shank portion extending rearwardly to a bight forming portion which curves forwardly to a distal forward end defining a blind slotway closed at a rearmost bight end and extending forwardly and upwardly to open at an upwardly directed entranceway forward of the bight between the shank portion and the distal end, when the axle member is engaged in the rear most blind end, the axle member extends horizontally through the hook member with the shank portion below the axle member, with the distal hook end above the axle member and with the entranceway to the blind slotway on an upper side of the shank portion and opening outwardly and upwardly from the blind slotway, wherein by maintaining the cover against forward movement from the closed position while moving the axle member from the first rear position to the second forward position, engagement between the axle member and the blind slotway relatively camming the cover to move to a relative position with the axle member in the entranceway from which the axle member can be disengaged from the hook member by subsequent forward sliding of the cover relative the housing. 3. A fluid dispenser as claimed in claim 1 wherein the hook member having a shank portion extending rearwardly to a bight forming portion which curves forwardly to a distal forward end defining a blind slotway closed at a rearmost bight end and open via an entranceway forward of the bight forming portion between the shank portion and the distal end. 4. A fluid dispenser as claimed in claim 1 wherein by maintaining the cover against forward movement from the closed position while moving the axle member from the first rear position to the second forward position, engagement between the axle member and hook member relatively camming the axle member to move to a position in which the axle member can be disengaged from the hook member by subsequent forward sliding of the cover relative the housing. 5. A fluid dispenser as claimed in claim 4 wherein the axle member extends side to side across the housing in a horizontal direction, the housing has a forward opening providing access to the interior of the housing, the cover covers the forward opening of the housing in the closed position. 6. A fluid dispenser as claimed in claim 5 wherein the cover in moving between the closed position and the open position assuming an intermediate position between the closed position and the open position, the cover in moving between the closed position and the intermediate position moving forwardly relative the housing, the cover in moving between the intermediate position and the open position pivoting about the axle member relative the housing. 7. A fluid dispenser as claimed in claim 6 including rotation stop surfaces carried on the housing to engage the cover and prevent pivoting of the cover about the axle member when the axle member is received in the bight end of the blind slotway of the hook member and the cover is between the closed position and the intermediate position. 8. A fluid dispenser as claimed in claim 7 wherein the cover in moving from the intermediate position to the open position and pivoting about the axle member moves upwardly relative the housing to provide access to the interior below the cover. 9. A fluid dispenser as claimed in claim 8, the axle member extends horizontally through the hook member with the shank portion below the axle member, with the distal hook end above the axle member and with the entranceway to the blind slotway on an upper side of the shank portion and opening outwardly and upwardly from the blind slotway. 10. A fluid dispenser as claimed in claim 9 wherein the cover has a pair of rearwardly extending hook arms spaced side-to-side on the cover and with each hook arm carrying one said hook member at a rear end thereof, each said hook member engaging the axle member at side-to-side spaced locations. 11. A fluid dispenser as claimed in claim 8 including a pump mechanism within the interior of the housing having a dispensing nozzle which extends forwardly beyond the housing for dispensing downwardly, the cover comprising a shroud overlying the nozzle and at least partially protecting the with the nozzle from engagement by a user when the cover is in the closed position. 12. A fluid dispenser as claimed in claim 11 wherein the pump mechanism is coupled to the housing for removal when the cover is in the open position, and prevented from removal when the cover is in the closed position. 13. A fluid dispenser as claimed in claim 12 including a fluid reservoir within the interior of the housing from which fluid is to be dispensed, the reservoir coupled to the pump mechanism with the pump mechanism and reservoir being removable as a unit from the interior for replacement when the cover is in the open position, the cover comprising a shroud overlying the nozzle and at least partially protecting the nozzle from engagement by a user when the cover is in the closed position, the cover extends forwardly. 14. A fluid dispenser as claimed in claim 1 including a cover latch member releasably secured to the housing, the cover latch when secured to the housing with the cover in the closed position preventing movement of the cover from the closed position toward the open position. 15. A fluid dispenser as claimed in claim 14 wherein the cover latch member provides a removable cover plate which when secured to the housing prevents access to the interior of the housing. 16. A fluid dispenser as claimed in claim 14 wherein the housing carries in the interior a support plate for supporting a pump mechanism, the cover latch member when secured to the housing engages with stop surface on a forward portion of the support plate which stop surface prevents forward movement of the cover latch member. 17. A fluid dispenser having a housing, a cover coupled to the housing for movement between a closed position in which the dispenser is operative for dispensing fluid and an open position in which access is provided to an interior of the housing, the cover and the housing coupled together by a releasable connection mechanism including an axle member disposed about an longitudinal axis carried by a first member selected from the cover and the housing, and a hook member carried by a second member which selected from the cover and the housing but is not the first member, the one of the axle member and hook member which is carried by the housing being movable relative the housing in a direction normal to the axis between a first rear position and a second forward position, a biasing member urging the one of the axle member and hook member which is carried by the housing to assume the first rear position, the one of the axle member and hook member which is carried by the housing being movable from the first rear position to the second forward position against the bias of the biasing member, the hook member removably engaging the axle member, wherein when the hook member engages the one of the axle member and hook member which is carried by the housing: (a) the cover is in the closed position when the one of the axle member and hook member which is carried by the housing is in the first rear position, (b) the axle biasing member in urging the one of the axle member and hook member which is carried by the housing to the first position urges the cover to the closed position, and (c) movement of the cover from the closed position to the open position moves the one of the axle member and hook member which is carried by the housing from the first rear position to the second forward position against the bias of the axle biasing member, the hook member being engageable and disengageable from the axle member for coupling and uncoupling of the cover relative to the housing when the one of the axle member and hook member which is carried by the housing is in the second front position and the cover member is proximate the closed position. 18. A fluid dispenser as claimed in claim 17 wherein the cover is the first member and the housing is the second member, the hook member having a shank portion extending forwardly to a bight forming portion which curves rearwardly to a distal rear end defining a blind slotway closed at a forwardmost bight end and open via an entranceway rearward of the bight. 19. A fluid dispenser as claimed in claim 18 the axle member extends horizontally through the hook member with the distal hook end below the axle member and with the entranceway to the blind slotway on a lower side of the shank portion and opening outwardly and downwardly from the blind slotway. 20. A fluid dispenser as claimed in claim 17 wherein by maintaining the cover against forward movement from the closed position while moving the one of the axle member and hook member which is carried by the housing from the first rear position to the second forward position, engagement between the axle member and hook member relatively camming the axle member to move to a position in which the axle member can be disengaged from the hook member by subsequent forward sliding of the cover relative the housing.
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