Packaging container with a bayonet twist closure and free running

Abstract

A packaging container for elongated objects that includes an outer sleeve (1) with at least one threaded section (4) and an inner sleeve (2) with at least one toothed or threaded strip (3) that can be brought into threaded engagement with the threaded section (4) such that the inner sleeve can be screwed into the interior of the outer sleeve (1). The at least one threaded section (4) is interrupted by at least one sliding strip (5) that is aligned in the longitudinal direction of said packaging container and that interrupts the threaded section (4), the width of the sliding strip (5) being greater than the width of the toothed or threaded strip (3).

Claims

1. A packaging container for elongated objects, said packaging container comprising: an outer sleeve that defines an inner surface, said outer sleeve including at least one threaded section on the inner surface, said threaded section having an inlet end and an outlet end, said threaded section having at least one thread having a pitch such that said thread is oriented obliquely to the longitudinal axis of said outer sleeve, said threaded section further including at least one horizontal annular groove on the inner surface of said outer sleeve and that is oriented in the circumferential direction, said horizontal annular groove being disposed at least one of said inlet end and said outlet end of the threaded section; an inner sleeve that defines an outer surface, said inner sleeve being positioned inside said outer sleeve such that at least a portion of the outer surface of said inner sleeve opposes at least a portion of the inner surface of said outer sleeve, the outer surface of said inner sleeve having at least one threaded strip that includes teeth having a pitch such that said teeth are oriented obliquely to the longitudinal axis of said inner sleeve, the pitch of the teeth of said inner sleeve corresponding to the pitch of the threads of said threaded section, such that when said threaded strip is brought into threaded engagement with said at least one threaded section, said inner sleeve is continuously displaceable along the longitudinal axis of said packaging container with respect to said outer sleeve by rotation of said outer sleeve with respect to said inner sleeve; and at least one sliding strip that interrupts at least one threaded section on the inside surface of the outer sleeve to define a breach in the threaded section, said sliding strip being longitudinally oriented in the longitudinal dimension of said packaging container, said sliding strip having a width that is greater than the width of the threaded strip on the inner sleeve, each of said horizontal annular grooves being interrupted in the region of the sliding strip and cooperating with a thread of said threaded section to define a turn brake that locks movement of said outer sleeve with respect to said inner sleeve.

2. The packaging container according to claim 1 wherein said threaded section that is disposed on the inside surface of said outer sleeve is segmented or interrupted by said sliding strips and wherein at least two of said sliding strips that segment or interrupt the threaded section are angularly located on said inner sleeve approximately 180 apart and opposite one another.

3. A packaging container for elongated objects, said packaging container comprising: an inner sleeve that defines an outer surface, said inner sleeve including at least one threaded section on said outer surface, said threaded section having an inlet end and an outlet end, said threaded section having at least one thread with a pitch such that said thread is oriented obliquely to the longitudinal axis of said inner sleeve, said threaded section further including at least one horizontal annular groove on the outer surface of said inner sleeve and that is oriented in the circumferential direction, said horizontal annular groove being disposed at at least one of said inlet end and said outlet end of the threaded section; an outer sleeve that defines an inner surface, said outer sleeve being positioned outside of said inner sleeve such that at least a portion of the inner surface of said outer sleeve opposes at least a portion of the outer surface of said inner sleeve, said outer sleeve having at least one threaded strip on the inner surface, said threaded strip having teeth with a pitch such that said teeth are oriented obliquely to the longitudinal axis of said outer sleeve, the pitch of the teeth of said outer sleeve corresponding to the pitch of the threads of said threaded section such that said threaded strip is threadingly engageable with said at least one threaded section, such that said inner sleeve is continuously displaceable along the longitudinal axis of said packaging container with respect to said outer sleeve by rotation of said outer sleeve with respect to said inner sleeve; and at least one sliding strip that interrupts said at least one threaded section on the outer surface of the inner sleeve to define a breach in said threaded section, said sliding strip being longitudinally oriented in the longitudinal dimension of the packaging container, the width of said sliding strip being greater than the width of the threaded strip of said outer sleeve, each of said horizontal annular grooves being interrupted in the region of the sliding strip and cooperating with a thread of said threaded section to define a turn brake that locks movement of said outer sleeve with respect to said inner sleeve.

4. The packaging container according to claim 3 wherein said threaded section that is disposed on the outside surface of said inner sleeve is segmented or interrupted by said sliding strips and wherein at least two of said sliding strips that segment or interrupt the threaded section are angularly located on said outer sleeve approximately 180 apart and opposite one another.

5. The packaging container according to claim 1, said packaging container having a locked state wherein at least one tooth of the threaded strip of the inner sleeve engages the horizontally peripheral annular groove of the outer sleeve to secure the outer sleeve with respect to said inner sleeve.

6. The packaging container according to claim 3, said packaging container having a locked state wherein at least one tooth of the threaded strip of the outer sleeve engages the horizontally peripheral annular groove of the inner sleeve to secure the inner sleeve with respect to said outer sleeve.

7. The packaging container according to claim 1 wherein at least one of said annular grooves that is disposed at at least one of the inlet and the outlet of the threaded section on the outer sleeve engages at least one thread of the threaded strip on the inner sleeve.

8. The packaging container of claim 3 wherein at least one of said annular grooves that is disposed at at least one of the inlet and the outlet of the threaded section on the inner sleeve engages at least one thread of the threaded strip on the outer sleeve.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is explained in greater detail below on the basis of drawings illustrating only one presently preferred embodiment. Additional features of the invention and advantages of the invention are derived from the drawings and the description thereof.

(2) They show:

(3) FIG. 1: a horizontal section through the thread connecting part between the inner sleeve and the outer sleeve in the locked state according to FIG. 3.

(4) FIG. 2: the same section as that according to FIG. 1, but in the unlocked state in the function of the sliding strip according to FIG. 4.

(5) FIG. 3: a side view of the configuration according to FIG. 1.

(6) FIG. 4: a side view of the configuration according to FIG. 2.

(7) FIG. 5: a side view and the front view of the outer sleeve.

(8) FIG. 6: a side view and the front view of the inner sleeve.

DESCRIPTION OF A PRESENTLY PREFERRED EMBODIMENT

(9) According to FIGS. 1 through 4, an outer sleeve 1, which is designed as a cylindrical hollow body, preferably made of a plastic material, can be locked to an inner sleeve 2.

(10) The engaged position is illustrated in FIGS. 1 and 3. It can be seen here that a threaded section 4 is present on the inside surface of the outer sleeve 1, consisting of groove-type threads running obliquely with respect to the longitudinal direction of the packaging container, such that an annular groove-type threads running horizontally is provided at the inlet and the outlet of the threaded section, referred to below as turn brakes 9 and 10.

(11) It is fundamentally sufficient for the design of the turn brake if an annular groove in the form of the turn brake 9, 10 is disposed either only at the inlet or only at the outlet of the threaded section 4.

(12) In a preferred embodiment, however, the turn brake 9, 10 is disposed both at the inlet and at the outlet of the threaded section 4. This creates a particularly load-bearing turn brake.

(13) The inner sleeve 2 has toothed or threaded strips 3, which are preferably angularly offset by 180 from one another around the circumference of the inner sleeve. Each of the toothed or threaded strips is designed with teeth or threaded sections running obliquely, such that their pitch corresponds approximately to the pitch of the threads in threaded section 4 on the surface of the outer sleeve 1.

(14) In the locked state according to FIGS. 1 and 3, the toothed or threaded strips 3 of the inner sleeve 2 engage in the respective threaded section 4 on the outer sleeve 1 in the manner of a thread engagement, and the two parts are thereby secured with respect to one another.

(15) To adjust the effective length of the packaging formed from the outer sleeve 1 and the inner sleeve 2, for example, the outer sleeve 1 is twisted in the direction of the arrow 7 with respect to the stationary inner sleeve 2, so that the threaded sections 3, 4 remain engaged with one another and the two packaging parts can be adjusted continuously in their length.

(16) To achieve a faster adjustment of the packaging length according to the invention or to achieve a faster opening of the entire package without having to apply force, the invention now provides according to FIGS. 2 and 4 that the threaded section 4 is interrupted on the surface of the outer sleeve 1, namely through sliding strips 5 running in the longitudinal direction.

(17) The width of the sliding strip 5 is at least as great as the width of the toothed or threaded strip 3 on the outside surface of the inner sleeve 2. It is therefore possible now for the first time for the two parts 1, 2 to be rotated by mutual turning, so that the sliding strip 5 is brought into angular alignment with the toothed or threaded strip 3 on the outside surface of the inner sleeve 2. When this is the case, the two parts 1, 2 can be displaced easily relative to one another in the direction of the arrow 8 and in the opposite direction without any great shifting resistance, which was not previously known in the prior art.

(18) To restore a certain engaged position, after free displacement of the inner sleeve with respect to the outer sleeve according to FIG. 4, one of the inner sleeve or outer sleeve is rotated with respect to the other in the direction of the arrow 7, so that now the toothed or threaded strip 3 on the inner sleeve again comes into threaded engagement with the threaded section 4 on the outer sleeve. This is illustrated in FIG. 1.

(19) It is thus possible for the first time now to induce a longitudinally axial displacement movement in the direction of the arrow 8 and in the opposite direction to that, instead of a rotational movement in the direction of the arrow 7, to adjust the effective packaging length between the two parts 1, 2.

(20) FIG. 5 shows that it is preferable if the threaded section 4 is interrupted by opposing sliding strips 5.

(21) The invention is not limited to the configuration of two opposing sliding strips 5. It is also possible for just one sliding strip to be present, which corresponds to a respective single toothed or threaded strip 3.

(22) Likewise, however, more than two sliding strips (for example, three or four) may also be present, and this number of sliding strips 5 is then opposed by an equal number of toothed or threaded strips 3 on the opposite part.

(23) FIG. 6 shows here that, as in the embodiment according to FIG. 5, it is preferable if the toothed or threaded strip 3 is disposed with a 180 offset on the circumference.

(24) Furthermore, it is preferable if a so-called function indicator 6 consisting of a double arrow is disposed in the region of the sliding strip 5 to also indicate visually that, when the toothed or threaded strip 3 on the outside surface of the inner sleeve 2 is aligned with the sliding strip 5, the two parts are freely displaceable relative to one another in the direction of the arrow 8 according to FIG. 4.

LEGEND TO DRAWINGS

(25) 1 Outer sleeve 2 Inner sleeve 3 Toothed or threaded strip (of 2) 4 Threaded section (of 1) 5 Sliding strip 6 Function indicator 7 Direction of arrow and/or direction of rotation 8 Direction of arrow and/or direction of rotation 9 Turn brake 10 Turn brake