JPH0612352Y2 - Writer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a lighter made of synthetic resin, which is usually called a disposable lighter.

(Prior Art) Generally, this type of lighter is disclosed, for example, in Japanese Utility Model Publication No. 57-415.
As disclosed in Japanese Patent Publication No. 51, etc., a fuel tank formed by injection molding of synthetic resin is used as a lighter case, and an ignition device is fixed to the upper part of the fuel tank. Many people carry this lighter because it is easy to check the remaining amount of liquefied gas in the fuel tank and is inexpensive.

(Problems to be solved by the invention) Since this kind of lighter is low in price, if it is carried only for smoking, it is often handled as if it is mishandled and lost due to mishandling. Has drawbacks,
This is because the added value of being used only for smoking is low. Therefore, since many people carry it, it is necessary to have a function to magnify small prints or small objects such as newspapers and magazines when observing elderly people or small objects. It is said to be convenient because it saves the trouble of searching for magnifying glass.

As a means for solving such a problem, Japanese Patent Laid-Open No. 53-8
Japanese Patent No. 7864 discloses a lighter in which a separate magnifying glass is rotatably provided on a side portion of a lighter body. However, in such a device, since a separate magnifying glass is provided, there is a problem that the cost increases and it is not possible to deal with a cheap lighter such as a disposable lighter.

Therefore, as disclosed in Japanese Utility Model Laid-Open No. 55-42365, a shoe horn is disclosed in which the lighter body and the shoe horn are integrally formed. However, the shoehorn is formed to be offset to one side from the lower end of the lighter body, and the side surface of the shoehorn is formed to extend from the wide surface of the lighter body.When a magnifying lens is used instead of the shoehorn, When the wide surface of the lighter body is placed on a desk or the like, the maximum projection in the thickness direction of the magnifying lens contacts the mounting surface. This causes problems such as scratches and a marked reduction in lens action.

On the other hand, Japanese Utility Model Publication No. 48-65351 and Japanese Utility Model Publication No. 50
In Japanese Patent Laid-Open No. 31937/1993, a protrusion is formed on an outer peripheral portion or an edge portion of a lens to prevent damage to the lens surface. However, if such a structure in which a protrusion is formed around the lens is applied to a lighter with a lens, not only the shape of itself becomes complicated, but also the mold at the time of molding becomes complicated, which causes a factor of cost increase.

Then, this invention aims at providing the lighter which can prevent the damage of a lens, without complicating the structure and model of a lighter itself.

[Structure of the Invention] (Means for Solving the Problems) In the present invention, a magnifying lens without a frame is formed integrally with a synthetic resin downward at the lower end of a lighter case having a rectangular cross section with a rectangular cross section. The maximum projection in the thickness direction of the magnifying lens is formed so as not to exceed the wide mounting surface forming the side portion of the lighter case.

(Function) A lighter and a magnifying lens can be carried and used at the same time. In addition, a magnifying lens without a frame is integrally formed on the lower end of a lighter case having a rectangular cross section with a rectangular cross section, and the thickness of the magnifying lens is set so as not to exceed the wide mounting surface forming the side part of the lighter case. By forming the maximum protrusion in the direction, it is possible to prevent the maximum protrusion in the thickness direction of the magnifying lens from contacting a flat surface such as a desk without complicating the shape of the lighter itself or the mold at the time of molding. .

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 is a lighter case formed by injection-molding a transparent hard synthetic resin and having a rectangular cross-section with a rectangular cross section. A pair of left and right fuel tank chambers 4 are formed in which the partition plate 3 is erected and communicates with each other, and a liquefied gas 5 is enclosed therein. A plug body 6 having an insertion hole is fitted on the top of the lighter case 1, and an ignition operation portion 7 of the lighter, a gas discharge portion 8 for flame formation, and the gas discharge portion 8 are attached to the upper surface of the plug body 6. An ignition device such as a metallic covering 9 is provided.

Reference numeral 10 denotes a magnifying lens without a frame, which is connected to the lower end of the lighter case 1 and is integrally injection-molded simultaneously with the lighter case 1 with a transparent hard synthetic resin. The magnifying lens 10 is a biconvex lens having a thick spherical center and a function of collecting light. The magnifying lens 10 has a spherical shape,
It is also possible to use a cylindrical magnifying lens attached to the entire surface of a scale plate such as a thermometer.

Further, the maximum protrusion 10A in the thickness direction of the magnifying lens 10 is formed so as not to exceed the wide mounting surface 1A forming the side portion of the lighter case 1.

The lighter of the present invention can be used as a normal lighter, and the magnifying lens 10 connected to the lower end of the lighter case 1 can magnify and see an object. That is, since this type of disposable lighter is low in price, so many people carry it with them at all times.For example, when the eyesight of elderly people and other people with poor eyesight is difficult to read due to the fine print on magazines, etc. It is very convenient that the magnifying lens 10 of the lighter case 1 can be used for magnifying and viewing easily without using glasses or magnifying glass. Further, since the magnifying lens 10 is injection-molded integrally with the lighter case 1, if a mold frame is provided, it does not cause any increase in cost, and the original low-priced property of the disposable lighter is impaired. Instead, it becomes a lighter with added value by adding one function of the magnifying lens 10. Furthermore, the structure is extremely simple and mass production can be achieved, so that the price can be supplied to customers as a very low price, and it is also suitable as various gifts, souvenirs, and gifts. It can also be an accessory. Further, since it is provided in the lighter that is always carried, the magnifying lens 10 can be easily taken out and observed whenever it is desired to go out outdoors and magnify and observe small objects such as flowers and insects.

Moreover, the magnifying lens 10 without a frame is simply integrally formed on the lower end of the lighter case 1, and the maximum protruding portion 10A of the magnifying lens 10 does not exceed the mounting surface 1A of the lighter case 1.
It is possible to prevent the maximum protrusion 10A of the magnifying lens 10 from coming into contact with a flat surface such as a desk without forming a complicated shape of the lighter itself or a mold at the time of injection molding by only forming the. Therefore, while eliminating the factor of cost increase, while maintaining the low price, which is the original purpose of the disposable lighter, it is possible to prevent the lens surface of the magnifying lens 10 from being easily scratched, without lowering the lens action. It can be used for a long time.

3 and 4 show another embodiment of a magnifying lens without a frame, and FIG. 3 shows a plano-convex lens as a magnifying lens 10.
FIG. 4 shows one using a convex meniscus lens, and lenses other than these can be used. Further, the lighter case 1 and the magnifying lens 10 can be colored in various colors as long as the magnifying lens 10 can magnify and see an object. At this time, since the edge portion of the lens 10 is formed thinner than the lighter case 1, even if the lighter case 1 itself is colored in various colors, it is possible to enlarge the lens portion during injection molding. It is possible to bleach the color to the extent possible, and it is possible to provide a lighter with a lens of the lighter case 1 colored in various colors according to the preference of the user. Further, the ignition device may be provided with a lid as a safety mechanism, and the ignition device is not limited to the above-mentioned embodiment, but may be one using a piezoelectric element or a battery.

[Effects of the Invention] As described in detail above, the present invention forms a magnifying lens without a frame downward at the lower end of a lighter case having a rectangular cross-section with a wide cross section and is integrally formed of synthetic resin. Is formed so that the maximum protrusion in the thickness direction does not exceed the wide mounting surface forming the side part of the lighter case, and the lens is not scratched without complicating the structure and mold of the lighter itself. A lighter that can prevent this can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a side view with a cutaway portion of the same portion, and FIGS. 3 and 4 are sectional views showing other embodiments of a magnifying lens. 1 …… Lighter case 1A …… Mounting surface 10 …… Magnifying lens 10A …… Maximum protrusion

Claims (1)

[Scope of utility model registration request] 1. A lighter case having a rectangular cross section with a rectangular cross section is integrally formed with a frameless magnifying lens downward with a synthetic resin at the lower end of the lighter case, and the maximum projection in the thickness direction of the magnifying lens is the lighter case. A lighter characterized by being formed so as not to exceed the wide mounting surface that forms the side part of the.