Smoking article, and smoking article filter

Abstract

This smoking article filter (4) has: a fine-powder-containing article (44) in which there is clumped together a raw powder that includes a taste component and/or an aroma component, the fine-powder-containing article being formed into a fine powder by the application of an external force; a cavity (43) in which the fine-powder-containing article is disposed; and a straightening member (40) provided in a connected row arrangement upstream of the cavity, the straightening member straightening the flow of a main smoke flow, which flows from upstream, to the cavity.

What is claimed is: 
     
         1 . A smoking article comprising:
 a tobacco rod including tobacco shreds; and   a filter coupled to an end portion of the tobacco rod via a tipping paper, wherein   the filter includes:   a powder content that includes a lump of base powder including at least either one of a taste component or a flavoring component and is turned into powder by application of an external force;   a cavity where the powder content is accommodated; and   a rectifying member that is located continuously at an upstream side of the cavity and rectifies and leads a mainstream smoke, which has flowed from an upstream side, to the cavity.   
     
     
         2 . The smoking article according to  claim 1 , wherein the rectifying member includes: a low airflow resistance portion that is located at a part of a cross section over a range from a front end surface to a rear end surface and has a relatively low airflow resistance; and a high airflow resistance portion that is located at a rest of the cross section over the range from the front end surface to the rear end surface and is higher in airflow resistance than the low airflow resistance portion, the rectifying member leading the mainstream smoke, which has flowed from the upstream side through the low airflow resistance portion, to the cavity. 
     
     
         3 . The smoking article according to  claim 2 , wherein
 the rectifying member has a hollow path that penetrates the rectifying member in an axial direction, and includes an airflow restricting portion that is formed at a region other than the hollow path and restricts a flow of the mainstream smoke, and   the hollow path corresponds to the low airflow resistance portion and the airflow restricting portion corresponds to the high airflow resistance portion.   
     
     
         4 . The smoking article according to  claim 2 , wherein
 the rectifying member includes a filter medium formed in a rod shape, and   the low airflow resistance portion is lower in a density of the filter medium than the high airflow resistance portion.   
     
     
         5 . The smoking article according to  claim 2 , further comprising a mouthpiece filter unit that is located continuously at a downstream side of the cavity, and is provided with a powder supply path formed along an axial direction for allowing a mouthpiece end to communicate with the cavity and supplying the powder from the cavity to the mouthpiece end. 
     
     
         6 . The smoking article according to  claim 5 , wherein the powder supply path has a cross section configured to restrain entry of the powder content in a lump form. 
     
     
         7 . The smoking article according to  claim 5 , wherein the low airflow resistance portion of the rectifying member and the powder supply path of the mouthpiece filter unit are located at positions corresponding to each other in a cross section of the filter. 
     
     
         8 . The smoking article according to  claim 5 , wherein the low airflow resistance portion of the rectifying member and the powder supply path of the mouthpiece filter unit are located at positions not corresponding to each other in a cross section of the filter. 
     
     
         9 . The smoking article according to  claim 2 , wherein the low airflow resistance portion is located in an outer peripheral region of the cross section of the rectifying member. 
     
     
         10 . The smoking article according to  claim 9 , wherein a plurality of the low airflow resistance portions are located in the outer peripheral region of the rectifying member. 
     
     
         11 . The smoking article according to  claim 10 , wherein the plurality of low airflow resistance portions are located at a regular interval along a circumferential direction of the outer peripheral region of the rectifying member. 
     
     
         12 . The smoking article according to  claim 2 , wherein the low airflow resistance portion is located in a central region of the cross section of the rectifying member. 
     
     
         13 . A filter for a smoking article, the filter comprising:
 a powder content that includes a lump of base powder including at least either one of a taste component or a flavoring component and is turned into powder by application of an external force;   a cavity where the powder content is accommodated; and   a rectifying member that is located continuously at an upstream side of the cavity and rectifies and leads a mainstream smoke, which has flowed from an upstream side, to the cavity.