JPH0687284U - Straight tube lamp sack - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a straight tube diameter lamp sack capable of satisfying both the insertability, the retainability and the extractability of the lamp even if the sack and the lamp have some manufacturing variations. A protrusion 6 protruding inward from the outside of a wall surface is provided on a part or the whole of a rectangular tubular sack body 1 made of paperboard, and the inner dimension C of each side of the sack body 1 is a straight tube lamp. The outer diameter D of No. 7 is set to be 0.3 to 1.5 mm larger.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a straight tube lamp sack.

[0002]

[Prior art]

 Generally, this type of sack forms a rectangular tube-shaped sack body A of cardboard or paperboard as shown in, for example, FIGS. 7 to 8, and its total length is the same as or slightly longer than that of the straight tube lamp B. It is cut to make it longer.

[0003]

[Problems to be solved by the device]

 Generally, when a sack is first formed and then the lamp is automatically or manually inserted, the sack is designed to facilitate the insertability of the straight tube lamp B, and the sack has inner dimensions C of all wall surfaces of the main body A. May be set to be slightly larger than the outer diameter D of the straight tube lamp, so that the holding property of the straight tube lamp B by the main body of the sack A tends to decrease.

That is, for example, when the sack body A is in a vertical state as shown in FIG. 9 during handling, there is a drawback that the straight tube lamp B easily falls off from the sack body A and is damaged. In particular, this tendency is greatly affected in the case of a sack formed of a paperboard packaging material, and in order to solve this, for example, Japanese Utility Model Publication No. 58-4867 (straight tube fluorescent lamp paper container), Japanese Utility Model Publication No. 61-17013. Several improvements have been proposed, such as No. 1 (single case of straight tube fluorescent lamp).

[0007] According to this invention, since the ridgeline of the case body is formed in a corrugated shape, the inner dimensions of the case body are partially reduced, and as a result, the holding function for the straight tube lamp is improved. The effect that can be obtained is obtained.

However, the equipment for forming the corrugated portion on the ridge line becomes complicated and the equipment cost rises, and there still remains a problem that the insertability is a little poor at the time of manual insertion.

On the other hand, an automatic method characterized in that a paperboard of a predetermined length with a crease is wound around the straight tube lamp B and both ends of the paperboard in the longitudinal direction are pasted together with an adhesive or the like. In the packing device, since the difference between the inner dimension C of the sack body A and the outer diameter D of the straight tube lamp B can be made almost the same, it does not fall out as described above, but the use of the ramp Sometimes, the sack body A is very hard to pull out from the straight tube lamp B, and the pulling workability is poor.

Therefore, the object of the present invention has a simple structure and is applicable to the case where the straight tube lamp is inserted after the sack is formed and the case where the straight tube lamp is wrapped with the paperboard to form the sack. (EN) It is possible to provide a straight tube lamp sack capable of improving the retainability of the sack body with respect to the straight tube lamp without impairing the insertability and the ease of taking out the straight tube lamp.

[0009]

[Means for Solving the Problems]

 Therefore, in order to achieve the above-mentioned object, the present invention forms a rectangular tube-shaped sack body with a paperboard packaging material, and a part or the whole of the sack body from the outside to the inside of the wall surface of the sack body. The protrusion is formed. In the second invention of the present invention, the inner dimension C of the sack body is set to be 0.3 to 1.5 mm larger than the outer diameter D of the straight tube lamp.

[0010]

【Example】

 1 to 3, reference numeral 1 denotes a sack body formed of a paperboard packaging material such as cardboard in a rectangular tube shape. For example, the wall surfaces 2, 3, 4 and 5 have wall portions at both ends 1a and 1b. Is formed with a protrusion 6 protruding from the outside to the inside. The inner dimension C of the sack body 1 is set to be about 1 mm larger than the outer diameter D of the straight tube lamp.

As described above, the inner dimension C of the sack body 1 is set to be considerably larger than the outer diameter D of the straight tube lamp, so that when the straight tube lamp 7 is inserted into the sack body 1, the sack The projections 6 protruding inside the wall surfaces of the both end portions 1a and 1b of the main body 1 come into contact with the straight tube lamp 7, but since the contact area is small and the projections of the projections are soft, a large friction resistance does not occur. Easy to insert.

Moreover, once inserted, the tip end portion of the projection 6 on the inner wall surface of the sack body 1 and the straight tube lamp 7 have a certain holding force because they are in direct contact with each other, and as shown in FIG. Even if the main body 1 is in the vertical state, the straight tube lamp 7 does not fall out from the sack body 1 and is damaged.

Further, this is applied to an automatic packaging device in which a paperboard having a predetermined length is wound around a straight tube lamp 7 in advance and the both ends in the longitudinal direction of the paperboard are bonded with an adhesive. Also, a paperboard provided with a crease in which the inner dimension C of the sack body 1 is set to be larger than the tube diameter D of the straight tube lamp 7 and a projection 6 that protrudes in advance toward the inside of the wall surface of the sack body 1 is attached to the lamp 7. The same effect can be obtained by winding, and in this case, a sack having excellent extractability when using the lamp can be provided.

Here, the dimensional difference between the inner dimension C of the sack body 1 and the outer diameter D of the straight tube lamp 7, the shape and size of the protrusions 6 provided on the inner wall surface of the sack body 1, the number of protrusions, and the range in which the protrusions are provided. In addition, the acceptability of the insertability when inserting the straight tube lamp 7 into the sack body 1 and the difficulty of falling out when the sack body is in the vertical state as shown in Fig. 9 are the dimensions and weight of the straight tube lamp. The friction resistance between the projection of the sack body and the lamp varies depending on the tolerance of the ease of extraction when the straight tube lamp is removed from the sack body. Since the outer diameter D of the tubular lamp 7 varies depending on the manufacturing variation, it is necessary to set the optimum value in consideration of these factors.

As an example, for a 20-watt straight tube type lamp (FL20S) having a lamp total length of 580 mm and a lamp outer diameter of 32.5 mmφ, a cardboard that is currently generally used for a straight tube fluorescent lamp sack is used. Then, the projections having a diameter of 2 mm and a height of about 1 mm of the wall surface portion of the sack body 1 are respectively set in a range of 20 mm × 50 mm on the wall surfaces 2, 3, 4, 5 of both end portions 1 a, 1 b of the sack body 1 shown in FIG. 6 was provided and the inner dimension C of the sack body 1 was set to 33.5 mm, and the insertability, retention and withdrawal were tested, and satisfactory results were obtained for all.

In addition, in the present invention, the protrusions may be formed on all wall surfaces, or may be formed only on a specific wall surface, and the range in which the protrusions are provided is not limited to the quadrilateral shape, and the design is taken into consideration. As shown in FIG. 4, it can be provided in a specific pattern or can be provided in a character shape. In addition, the packaging method of the present invention can be applied to fluorescent lamps, halogen bulbs, general incandescent bulbs, etc. as long as the lamp has a straight tube diameter, but as shown in FIG. It can be applied not only to lamps based on tube lamps, but also to packaging of multiple lamps at the same time as shown in FIG.

[0017]

[Effect of device]

 As described above, according to the present invention, the straight tube lamp can be easily removed from the straight tube type lamp with a simple structure without impairing the insertability and retention of the straight tube type lamp into the sack body made of the paperboard packaging material. In addition to being effectively improved, it also has the effect of protecting the lamp from the external impact applied to the board sack.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of FIG.

FIG. 3 is a development view of FIG.

[Figure 4]

[Figure 5]

FIG. 6 is a perspective view showing another embodiment of the present invention.

FIG. 7 is a partially cutaway side view of a conventional example.

FIG. 8 is a front view of FIG.

FIG. 9 is a side view for explaining a falling state of the straight tube fluorescent lamp from the case body.

[Explanation of symbols]

 1 Case body 1a, 1b End part 2, 3, 4, 5 Wall surface 6 Protrusion 7 Straight tube type lamp

Claims (2)

[Scope of utility model registration request] 1. A rectangular tube-shaped sack body is formed of a packaging material made of paperboard, and a part or the whole of the sack body is formed.
A straight tube lamp sack characterized in that a protrusion protruding inward from the outside of the wall is formed. 2. The sack for a straight tube lamp according to claim 1, wherein an inner dimension C of the sack body is set to be 0.3 to 1.5 mm larger than an outer diameter D of the straight tube lamp.