M435863 五、新型說明： 【新型所屬之技術領域】 一種可調整桌面 本新型是有關於一種書桌，特別是指 斜度的書桌。 【先前技術】M435863 V. New description: [New technical field] An adjustable tabletop This new type is related to a desk, especially a desk with a slope. [Prior Art]
對於可調整桌面斜度的書桌的使用，目前已相當地普 及化。其最主要的作用是供❹者於閱讀、繪圖或工作時 能獲得最佳的桌面上台傾斜視角，進而讓使用者於閱讀、 、’’S圖或工作時更為舒適，並避免近視等問題。 參圖1、圖2與圖3’申請人經核准公告的中華民國第 M34㈣料號新型專利案公開—種可調整桌面斜度的書 其包含：一個㈣U、-個桌板& 一個伸縮式連 才干單元13’及一個垂重器μ。 該桌架II具有-個底㈣U1、—個橫向連設於該底 架體⑴中的橫樑U2，及-個橫向設置於該底架體⑴的 一頂部的架樑113。 該桌板12具有一個板體121及一個框耳122。該桌板 12板體121的一前侧是樞設於該架樑113的一前側且該 桌板12的樞耳122是固定於該板體121的一底面，並位於 該板體121的一後側。 該伸縮式連桿單元13具有兩個相反設置的柩設端131 ，其中一個樞設端131是樞設於該桌板12的樞耳122，其 中另一個樞設端131是樞設於該桌架u的橫樑112，以使 該桌板12的板體121能相對該桌架n的架樑113於一上掀 3 位置與一平放位置間移動β 該垂重器14具有一個樞軸141、一個曲柄142及一個 加重塊143。該垂重器14的樞轴141是固定於該架樑us 的一側部，並鄰近於該架樑113的前側。該垂重器14的曲 柄142具有一弧狀頂塊段144、一施力段145，及一連接該 弧狀頂塊段144與施力段145的連接段146。該曲柄14的 弧狀頂塊段144是相對該施力段145鄰近該桌板12板體 121的前側，且該曲柄14的連接段146是柩設於該樞軸 14卜該垂重器14的加重塊143則是連接於該曲柄142的 施力段146。 虽一使用者將該桌板12板體121自該上掀位置朝該平 放位置向下放置時，該垂重器14的加重塊143可朝下下垂 ，且該垂重器14的曲柄142的弧狀頂塊段144可頂抵於該 桌板12板體121的下表面，以使該桌板12板體121與該 架樑113間夾一最佳的閱讀角度。當該使用者欲使該桌板 12板體121恢復到該平放位置時，該使用者可將該垂重器 14的曲柄142的施力段146朝該桌板12板體121的前側轉 動’以使該曲柄142的連接段145帶動該弧狀頂塊段144 繞著該樞軸141自轉，並從而使該桌板12板體121恢復到 該平放位置。 雖然該垂重器14對於使用者而言，可提供該使用者於 下放該桌板12至該平放位置時免於失傷其手掌或手指等風 險。然而，此種設計僅在該架樑113側部提供單一個垂重器 14’就整體結構的穩定度而言，仍嫌不足。再者，縱算是 M435863 該可調整桌面斜度的#桌1於其架樑113 丨皆設置有垂重 盗14以提升其結構的穩定性：然而此種設計對於使用者 而言’也造成了操作上的不便。 經上述說明可知，改善可調整桌面斜度的書桌的結構 設計，以增加書桌於調整桌面斜度時的穩定性，並供使用 者便於操作’是此技術領域相關技術人請待克服的難題 〇 【新型内容】 因此，本新型之目的’即在提供一種可調整桌面斜度 的書桌。 於是，本新型可調整桌面斜度的書桌，包含：一個桌 架、一個桌板單元，及一個防夾裝置。該桌架具有一個第 一支撐樑。該桌板單元設置於該桌架上並具有一個主桌板 。該主桌板具有相反設置的一第一側部及一第二側部且 該主桌板能相對該桌架於一上掀位置及一平放位置間移動 〇 該防夹裝置具有一對第一限位塊、一對第二限位塊、 一個拉桿單元及至少一個彈性元件。該等第一限位塊分別 固定於該第一支撐樑的相反兩側部上。該等第二限位塊分 別相間隔地固定於該主桌板的一底面，每一第二限位塊具 有一個滑道及一個限位孔。每一第二限位塊的滑道是沿該 主桌板的第一側部朝其第二側部的一第一方向延伸並貫穿 該第二限位塊，每一第二限位塊的限位孔是上下貫穿其第 限位塊，且5亥專第二限位塊的限位孔的位置分別與該等 5 M435863 :限位塊的位置相互對應。該拉桿單元具有一個第一拉 〆第拉;^穿置於該等第二限位塊的滑道中並具有 ί内衣面及至彡一個位於其中一個内環面内的凸條部。 =等内環面相間隔設置以上下貫穿該第一拉桿並分別界定 f一：位孔’該凸條部是自其所對應的内環面的一側部沿 省第方向凸伸’且該内環面的側部是鄰近該主桌板第一 側部1彈性元件沿該第一方向具有相反設置的一第一端 部及一第二端部，該彈性元件的第一端部是設置於該凸條 部，且第二端部是頂抵於其所對應的第i限位&。 | 其中田該主桌板自該上掀位置朝該平放位置移動且 一使用者沿該第-方向拉動該第一拉桿時該第_拉桿能 π動其限位孔朝該第一方向移動，以使該第一拉桿的該等 限位孔的位置分別對準該等第二限位塊的限位孔，從而使 該等第-限位塊分別被限位於該等經對準後的限位孔中， 並使該主桌板恢復到該平放位置。 本新型々功效在於，該對第一限位塊、該對第二限位 塊的限位孔及該第一拉桿的該對限位孔於對位上，是呈兩< 兩一對的對稱性結構設計’藉此得以增加書桌於調整桌面 斜度時的穩定性，並供使用者便於操作。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中將可 清楚的呈現。 參閱圖4肖@ 5’本新型可調整桌面斜度的書桌的一較The use of desks that can adjust the inclination of the table is now quite common. Its main function is to provide the best viewing angle for the desktop when reading, drawing or working, so that users can be more comfortable in reading, 'S diagram or work, and avoid myopia and other issues. . Refer to Figure 1, Figure 2 and Figure 3 for the applicant's approved announcement of the Republic of China's M34 (four) item number new patent case - a book that can adjust the desk slope of the book contains: one (four) U, - table board & a telescopic The unit 13' and a vertical weight μ. The table frame II has a bottom (four) U1, a cross beam U2 laterally connected to the base frame body (1), and a frame beam 113 laterally disposed at a top portion of the chassis body (1). The table 12 has a plate body 121 and a frame ear 122. A front side of the board 121 is pivotally disposed on a front side of the frame 113 and a pivot 122 of the table 12 is fixed to a bottom surface of the board 121 and located at the bottom of the board 121 Back side. The telescopic link unit 13 has two oppositely disposed end portions 131. One of the pivoting ends 131 is pivotally disposed on the pivoting plate 122 of the table 12, and the other pivoting end 131 is pivoted on the table. The beam 112 of the frame u is such that the plate 121 of the table 12 can move relative to the frame beam 113 of the table frame n between a top position and a flat position. The weight 14 has a pivot 141. A crank 142 and a weighting block 143. The pivot 141 of the weight 14 is fixed to one side of the frame beam us and adjacent to the front side of the frame beam 113. The crank 142 of the weight 14 has an arcuate top block section 144, a force applying section 145, and a connecting section 146 connecting the arcuate top block section 144 and the force applying section 145. The arcuate top block section 144 of the crank 14 is adjacent to the front side of the platen body 121 of the table 12 opposite to the force applying section 145, and the connecting section 146 of the crank 14 is disposed on the pivot shaft 14 of the weight 14 The weighting block 143 is a force applying section 146 that is coupled to the crank 142. When a user places the table 12 of the table 12 from the upper position toward the flat position, the weight 143 of the weight 14 can hang down, and the crank 142 of the weight 14 The arcuate top block segment 144 can be abutted against the lower surface of the panel 121 of the table 12 so as to have an optimum reading angle between the panel 121 and the frame beam 113. When the user wants to return the table 12 of the table 12 to the flat position, the user can rotate the biasing section 146 of the crank 142 of the weight 14 toward the front side of the plate 121 of the table 12. 'To cause the connecting section 145 of the crank 142 to drive the arcuate top block section 144 to rotate about the pivot 141, and thereby return the table 12 of the table 12 to the flat position. Although the weight 14 can provide the user with the risk of damaging the palm or fingers of the table 12 when the table 12 is lowered to the flat position. However, such a design provides a single sling 14' side only on the side of the frame beam 113, which is still insufficient in terms of the stability of the overall structure. Furthermore, it is M435863 that the adjustable table top slope #1 has its slings 14 on its frame beam 113 to enhance the stability of its structure: however, this design has also caused Inconvenience in operation. According to the above description, the structural design of the desk which can adjust the inclination of the desktop can be improved to increase the stability of the desk when adjusting the inclination of the desk, and is convenient for the user to operate. This is a problem that the technical person concerned in the technical field should overcome. [New content] Therefore, the purpose of the present invention is to provide a desk that can adjust the inclination of the table top. Thus, the new desk with adjustable table top slope includes: a table frame, a table unit, and an anti-pinch device. The table frame has a first support beam. The table unit is disposed on the table and has a main table. The main table has a first side portion and a second side oppositely disposed, and the main table can be moved relative to the table in an upper position and a flat position. The anti-trap device has a pair of first a limiting block, a pair of second limiting blocks, a tie rod unit and at least one elastic element. The first limiting blocks are respectively fixed on opposite sides of the first supporting beam. The second limiting blocks are fixed to a bottom surface of the main table plate at intervals, and each of the second limiting blocks has a sliding path and a limiting hole. The slide of each second limiting block extends along a first side of the main table toward a second direction of the second side portion and extends through the second limiting block, and each of the second limiting blocks The limiting hole is vertically extending through the limiting block thereof, and the positions of the limiting holes of the 5th second limiting block respectively correspond to the positions of the 5 M435863: limiting blocks. The tie rod unit has a first pull tab; and is disposed in the slide of the second limit block and has a linger face and a ridge portion located in one of the inner ring faces. The inner annular surface is spaced apart from the first pull rod and defines a first one of the first pull rods, respectively: a positional hole 'the convex portion is protruded from the side of the corresponding inner annular surface in the first direction of the province' and the inner portion a side portion of the toroid is a first end portion and a second end portion of the first side portion 1 adjacent to the main table and having the opposite direction disposed along the first direction, and the first end portion of the elastic member is disposed at The rib portion, and the second end portion is abutted against the corresponding ith limit & Wherein the main table is moved from the upper position to the flat position and the first pull rod is π movable when the user pulls the first pull rod in the first direction, and the limit hole moves toward the first direction Aligning the positions of the limiting holes of the first pull rod with the limiting holes of the second limiting blocks, respectively, so that the first-limit blocks are respectively limited to the aligned In the limit hole, and return the main table to the flat position. The utility model has the advantages that the pair of first limiting blocks, the limiting holes of the pair of second limiting blocks and the pair of limiting holes of the first pulling rod are in opposite positions, and are two < two pairs The symmetrical structural design 'in this way, the stability of the desk when adjusting the inclination of the tabletop is increased, and is convenient for the user to operate. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. See Figure 4 Xiao @ 5’ This is a new desk that can adjust the desk tilt of the table.