Movable calender marker

A new calender marker composed of a frame member having a window therein and fixing means provided on the frame member to attach said calendar marker to a calendar sheet. Said fixing means is specifically at least one protuberance provided on one side of the frame member and having a recess therein. Said recess has a small diameter section formed in the outer side thereof and a large diameter section formed in the inner side thereof. Manually deformable sticky plastic material is charged into said recess such that a portion thereof project from the recess.

BACKGROUND OF THE INVENTION 
This invention relates to a movable calendar marker for indicating the 
current date and, more particularly, to a movable calendar marker used 
with a hanging type monthly calendar. 
Nowadays, our daily life is led with the aid of highly advanced electric 
apparatuses; for instance computers are being introduced in every field, 
making our life highly efficient. However, one is so urged by daily 
business to catch up with general social situations, get access to various 
pieces of information, pay much attention to complicated human relations, 
make preparations for the future or do various other things that he is 
liable to become forgetful of things. 
Remembering dates is not an exception. For example, one often forgets the 
current date and the remaining days of the month despite of the presence 
of monthly calendars at home and at the office, a display of the current 
date in railway stations and like places. In such cases, one often makes a 
mistake as to appointment or a good business chance. 
In order to obviate the difficiencies noted above, there has been proposed 
a calendar date indicator, which consists of a movable ring consisting of 
a permanent magnet movable along the surface of a conventional calendar 
and a driven ring consisting of a permanent magnet movable along the 
calendar surface with the movable ring (as disclosed in Japanese Utility 
Model Registration Publication No. 54-27750). Such ring-like permanent 
magnets, however, require very cumbersome operation in manufacture, 
particularly when separating them from molds. Also, they can be magnetized 
rather insufficiently. Further, their rigidity is insufficient. 
Furthermore, their cost is high and they have a short life span. Moreover, 
because they are ring-like, their gaus number is less than that of a solid 
permanent magnet having the same diameter, so that their attraction force 
is weaker. 
To overcome the drawbacks mentioned, the applicant has proposed a movable 
calendar marker, which comprises a marker body slidable over the surface 
of a hanging type monthly calendar to the position of the figure of the 
current date, said marker body having a window for showing the current 
date therethrough and a permanent magnet attached to the upper edge, and a 
driven permanent magnet attracted to the first-mentioned permanent magnet 
on the back side of the monthly calender for movement therewith (as 
disclosed in Japanese Utility Model Registration Publication No. 
56-48673). Various models of this movable calendar marker are now being 
trial manufactured by the applicant, and it has been confirmed that the 
intended end is sufficiently attained. 
BACKGROUND OF THE INVENTION 
The movable calendar marker according to the invention, although it is the 
same as the one described above insofar as a display frame having an upper 
projection is used, it is based on an entirely different principle as to 
the mechanism of attraction to the calendar and utilizes techniques based 
on this idea. More particularly, the invention seeks to provide a low cost 
movable calendar marker which does not use any permanent magnet but 
instead uses sticky plastic members. Unlike the prior art calendar marker, 
which uses a permanent magnet as a marker body or in the form secured to a 
marker body and a driven permanent magnet co-operative with the 
first-mentioned permanent magnet, with the movable calendar marker 
according to the invention there is no possibility of falling off of the 
driven permanent magnet. 
Another object of the invention is to provide a movable calendar marker, 
which permits an easy date display change operation. 
A further object of the invention is to provide a movable calendar marker, 
in which a sticky plastic member is pressure fitted in a large diameter 
opening portion pf a protuberance member through a small diameter opening 
thereof, so that the sticky plastic member is never detached in use and, 
if the stickiness is reduced, it can be restored by rubbing the member or 
the member can be readily replaced with a new one.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
Designated at a is a marker body made from a comparatively thin synthetic 
resin plate (e.g., a vinyl chloride plate with a thickness of 0.3 to 2 mm) 
or a comparatively thick paper sheet (e.g., one with a thickness of 1.0 to 
1.5 mm). It has a frame member 2 having a central window 1 and an upper 
enlarged section 2a. 
It has protuberance members 3 made of the same material as it. As shown in 
FIG. 4, each procuberance member 3 is formed with a recess having a small 
diameter section 3a formed in an outer side thereof and a large diameter 
section 3b formed in an inner side and communicating with the small 
diameter section 3a. In this example, the marker has three such 
protuberance members 3, one applied to the back side of the upper enlarged 
section of the frame 2 and the other two applied to the back side of the 
left and right corner portions of the frame 2 such that the large diameter 
section 3b is closed by the frame member 2. 
Reference numeral 4 designates manually deformable plastic material having 
stickiness. This sticky plastic material 4 is pressure fitted into the 
recess of each protuberance member 3 through the small diameter section 
3a. A portion 4a of it projects slightly from the small diameter section 
3a. 
Designated at b is a hanging type monthly calendar. Like the conventional 
one, it has impressions 5 of figures "1" to "30" or "1" to "31" 
representing the days of the month, abbreviation symbols 6 representing 
the days of the week and letters and figures 7 representing the month and 
year. 
In use of the marker having the construction described above, the frame 
member a is applied to the monthly calendar b by pushing it against the 
surface of the monthly calendar b such that the current day is seen 
through the window 1. To change the position of the marker, the frame 2 is 
pulled away and then attached again to the position of the next day. When 
the stickiness of the sticky plastic material 4 is reduced, it may be 
pulled out slightly from the small diameter section 3a and scraped with 
the fingers to obtain a new surface, or it may be replaced with a new one. 
While an embodiment of the invention has been described, it is by no means 
limitative; for instance the following modifications are possible. 
(1) The protuberance members 3 need not be three in number; only a single 
protuberance member may be applied to the back side of the upper enlarged 
section 2a of the frame member 2, or two or four such protuberance members 
may be applied to the frame member at desired positions thereof. 
(2) The protuberance member 3 may be formed integrally with the frame 2 as 
shown in FIG. 5. 
As has been described in the foregoing, with the movable calendar marker 
according to the invention, unlike the prior art calendar marker using in 
combination a permanent magnet as a marker body or secured to the same and 
a driven permanent magnet, there is no possibility of fall of the driven 
permanent magnet because of the use of the sticky plastic material having 
the function of being stuck instead of using any permanent magnet. In 
addition, it can be obtained inexpensively, and the date display change 
can be done easily. Further, the sticky plastic material which is pressure 
fitted in a large diameter opening portion of the protuberance member 
through the small diameter section thereof, never falls during use, and if 
its stickiness is reduced, the stickiness can be readily recovered by 
scraping it or it can be readily replaced with a new one.