Dispensing – With lock or fastening seal – Inhibiting actuation of discharge assistant
Patent
1998-07-06
2000-04-18
Shaver, Kevin
Dispensing
With lock or fastening seal
Inhibiting actuation of discharge assistant
222323, 222391, B67D 532, G01F 1100
Patent
active
060504536
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to an actuator grip provided with a fixed grip part and a trigger part which is pivotally connected thereto and which is drivingly connected to a movable member of an apparatus for actuating by the grip. Such an actuator grip is generally known and is for instance frequently applied in caulking guns for adhesive or filler cartridges.
DESCRIPTION OF THE PRIOR ART
The known actuator grip is usually fixed to a housing in which can be received a cartridge with for instance adhesive or filler, such as mastic. The housing and the actuator grip thus form a gun. Further generally accommodated in the housing is a piston which engages on a movable bottom of the cartridge and is movable under the influence of the actuator grip. The bottom of the cartridge is thus pushed inward and the medium present in the cartridge is forced therefrom as a result. The known actuator grip has a grip part which is fixedly connected co the housing and a trigger part pivotally connected to the grip part. The pivot connection is herein generally situated practically at the position of the connection of the grip part to the housing.
When the grip is grasped by a user, the index finger of the user rests on the trigger part in the vicinity of the pivot point, while the little finger of the user is situated at the position of the free end of the trigger part. When the user therefore wishes to operate the caulking gun by squeezing the grip whereby the trigger part is pivoted toward the fixed grip part, he must make a relatively large movement with his little finger, while his index finger can remain more or less in place. This is undesirable from an ergonomic viewpoint since the index finger will generally be considerably more mobile and better controllable than the little finger.
SUMMARY OF THE INVENTION
The invention therefore has for its object to provide an actuator grip of the above described type which enables a more natural and better controllable movement of the trigger part. According to the invention this is achieved in that the pivot connection between the grip part and the trigger part is arranged on the side of the grip remote from the member for actuating. The pivot point of the trigger part is thus situated at the position of the little finger of the user, while the free end of the trigger part, which makes the largest stroke, is situated at the position of the index finger. In this manner an ergonomically sound and well controllable movement of the trigger part relative to the grip part is obtained, whereby the apparatus connected to the grip can be actuated accurately and with relatively little effort.
The invention also relates to an apparatus, in particular a caulking gun, which is provided with an actuator grip as described above.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be elucidated on the basis of two embodiments wherein reference is made to the annexed drawing, in which
FIG. 1 shows a perspective view of a first: embodiment of a caulking gun with an actuator grip according to the invention;
FIG. 2 shows a partly sectional perspective side view of the actuator grip and a part of the gun of FIG. 1;
FIG. 3 shows a cross section through the grip along the line III--III in FIG. 2;
FIG. 4 shows a longitudinal section of the grip taken along the line IV--IV in FIG. 2;
FIG. 5 is a view corresponding with FIG. 2 of the grip in a first squeezed situation;
FIG. 6 is a view corresponding with FIG. 5 of the grip in a second squeezed situation;
FIG. 7 is a view corresponding with FIG. 1 of a second embodiment of the caulking gun with the actuator grip according to the invention;
FIG. 8 is a sectional side view of the grip part of the actuator grip and the housing of the gun of FIG. 7;
FIGS. 9A, 9B and 9C show respectively a rear view, side view and top view of a locking lever as applied in the gun of FIG. 7;
FIGS. 10A and 10B show respectively a top view and a bottom view of a piston accessory for use in the gun of FIG. 7; and
FIGS. 11 and 12 show respective
REFERENCES:
patent: 1718596 (1929-06-01), Smith
patent: 4167245 (1979-09-01), Kock et al.
patent: 4485944 (1984-12-01), Eichholz
patent: 4744494 (1988-05-01), Seager et al.
patent: 4840294 (1989-06-01), Ernst
patent: 4951846 (1990-08-01), Oster etal.
Kelders Johannes Hubertus Josef Maria
Klaassen Willem
Lepsius Tilwin
Henkel Kommanditgesellschaft auf Aktien
Quinalty Keats
Shaver Kevin
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