CN2897656Y - Bookbinder - Google Patents

Abstract

The utility model provides a folder, belonging to the technical fields about books, in particular to a device to maintain books open (1). The utility model has two (including two) over missing in a ruler's side (2), or has more than two side missing in the straight edge of a set square (3), or has more than two side missing in the straight edge of the semicircle board (4), or has more than two side missing in any of the feet with a straight edge and a plate type stationery opened with two straight (5). The utility model is to turn the pages inserted into the side of this missing of utility model, which can guarantee that the books are open, easy reading, copying or noting for readers and has simple structure, low cost and the positive effects of easy-to-use.

Description

A kind of book clamping machine

Technical field

The utility model belongs to the technical field relevant with books, is specifically related to a kind of maintenance books device for opening, and international Patent classificating number is: B42D9/00.

Background technology

As everyone knows, when reading books, books be opened, be clamped, otherwise page will close with hand, very inconvenient if when making a copy of page, will be pressed on the books that open with weight, make troubles to the reader.

Summary of the invention

Goal of the invention of the present utility model provides a kind of books that make and is in open mode all the time, helps reader to read a kind of book clamping machine of books.

The utility model is that the side at ruler has two sides more than (comprising two) and lacks; Perhaps lack having two sides more than (comprising two) on the straight flange of set square; Perhaps lack having two sides more than (comprising two) on the straight flange of semi-circular plate;

Perhaps having two sides more than (comprising two) on the straight flange of any chi that has a straight flange, plate class stationery lacks;

Using method of the present utility model is: the page that opens is inserted in side of the present utility model lacks, can guarantee that the books that open can not close, and are convenient to readers ' reading, copy or take notes.

The utlity model has good effect simple in structure, that cost is low, easy to use.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of the utility model embodiment 2;

Fig. 3 is the structural representation of the utility model embodiment 3.

The specific embodiment

Embodiment 1:

As shown in Figure 1, the side (1) at ruler (3) has 3 sides scarce (2).

Embodiment 2:

As shown in Figure 2, on a straight flange (1) of set square (4), have 3 sides and lack (2).

Embodiment 3:

As shown in Figure 3, (1) has 3 sides scarce (2) on the straight flange of semi-circular plate (5).

Claims (4)

1, a kind of book clamping machine is characterized in that: have plural side and lack (2) on the straight flange (1) that has the chi of straight flange, plate class stationery.

2, a kind of book clamping machine according to claim 1 is characterized in that: described chi, the plate class stationery that has straight flange is ruler (3).

3, a kind of book clamping machine according to claim 1 is characterized in that: described chi, the plate class stationery that has straight flange is set square (4).

4, a kind of book clamping machine according to claim 1 is characterized in that: described chi, the plate class stationery that has straight flange is semi-circular plate (5).

Images